diff options
Diffstat (limited to 'drivers/isdn')
28 files changed, 3725 insertions, 427 deletions
diff --git a/drivers/isdn/hardware/eicon/debuglib.h b/drivers/isdn/hardware/eicon/debuglib.h index 016410cf2273..8ea587783e14 100644 --- a/drivers/isdn/hardware/eicon/debuglib.h +++ b/drivers/isdn/hardware/eicon/debuglib.h @@ -235,7 +235,7 @@ typedef void ( * DbgOld) (unsigned short, char *, va_list) ; typedef void ( * DbgEv) (unsigned short, unsigned long, va_list) ; typedef void ( * DbgIrq) (unsigned short, int, char *, va_list) ; typedef struct _DbgHandle_ -{ char Registered ; /* driver successfull registered */ +{ char Registered ; /* driver successfully registered */ #define DBG_HANDLE_REG_NEW 0x01 /* this (new) structure */ #define DBG_HANDLE_REG_OLD 0x7f /* old structure (see below) */ char Version; /* version of this structure */ diff --git a/drivers/isdn/hardware/eicon/os_4bri.c b/drivers/isdn/hardware/eicon/os_4bri.c index 7b4ec3f60dbf..c964b8d91ada 100644 --- a/drivers/isdn/hardware/eicon/os_4bri.c +++ b/drivers/isdn/hardware/eicon/os_4bri.c @@ -997,7 +997,7 @@ diva_4bri_start_adapter(PISDN_ADAPTER IoAdapter, diva_xdi_display_adapter_features(IoAdapter->ANum); for (i = 0; i < IoAdapter->tasks; i++) { - DBG_LOG(("A(%d) %s adapter successfull started", + DBG_LOG(("A(%d) %s adapter successfully started", IoAdapter->QuadroList->QuadroAdapter[i]->ANum, (IoAdapter->tasks == 1) ? "BRI 2.0" : "4BRI")) diva_xdi_didd_register_adapter(IoAdapter->QuadroList->QuadroAdapter[i]->ANum); diff --git a/drivers/isdn/hardware/eicon/os_bri.c b/drivers/isdn/hardware/eicon/os_bri.c index f31bba5b16ff..08f01993f46b 100644 --- a/drivers/isdn/hardware/eicon/os_bri.c +++ b/drivers/isdn/hardware/eicon/os_bri.c @@ -736,7 +736,7 @@ diva_bri_start_adapter(PISDN_ADAPTER IoAdapter, IoAdapter->Properties.Features = (word) features; diva_xdi_display_adapter_features(IoAdapter->ANum); - DBG_LOG(("A(%d) BRI adapter successfull started", IoAdapter->ANum)) + DBG_LOG(("A(%d) BRI adapter successfully started", IoAdapter->ANum)) /* Register with DIDD */ diff --git a/drivers/isdn/hardware/eicon/os_pri.c b/drivers/isdn/hardware/eicon/os_pri.c index 903356547b79..5d65405c75f4 100644 --- a/drivers/isdn/hardware/eicon/os_pri.c +++ b/drivers/isdn/hardware/eicon/os_pri.c @@ -513,7 +513,7 @@ diva_pri_start_adapter(PISDN_ADAPTER IoAdapter, diva_xdi_display_adapter_features(IoAdapter->ANum); - DBG_LOG(("A(%d) PRI adapter successfull started", IoAdapter->ANum)) + DBG_LOG(("A(%d) PRI adapter successfully started", IoAdapter->ANum)) /* Register with DIDD */ diff --git a/drivers/isdn/hardware/mISDN/Kconfig b/drivers/isdn/hardware/mISDN/Kconfig index 14793480c453..fd112ae252cf 100644 --- a/drivers/isdn/hardware/mISDN/Kconfig +++ b/drivers/isdn/hardware/mISDN/Kconfig @@ -23,3 +23,10 @@ config MISDN_HFCMULTI * HFC-8S (8 S/T interfaces on one chip) * HFC-E1 (E1 interface for 2Mbit ISDN) +config MISDN_HFCUSB + tristate "Support for HFC-S USB based TAs" + depends on USB + help + Enable support for USB ISDN TAs with Cologne Chip AG's + HFC-S USB ISDN Controller + diff --git a/drivers/isdn/hardware/mISDN/Makefile b/drivers/isdn/hardware/mISDN/Makefile index 1e7ca5332ad7..b0403526bbba 100644 --- a/drivers/isdn/hardware/mISDN/Makefile +++ b/drivers/isdn/hardware/mISDN/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_MISDN_HFCPCI) += hfcpci.o obj-$(CONFIG_MISDN_HFCMULTI) += hfcmulti.o +obj-$(CONFIG_MISDN_HFCUSB) += hfcsusb.o diff --git a/drivers/isdn/hardware/mISDN/hfc_multi.h b/drivers/isdn/hardware/mISDN/hfc_multi.h index 7bbf7300593d..663b77f578be 100644 --- a/drivers/isdn/hardware/mISDN/hfc_multi.h +++ b/drivers/isdn/hardware/mISDN/hfc_multi.h @@ -2,10 +2,6 @@ * see notice in hfc_multi.c */ -extern void ztdummy_extern_interrupt(void); -extern void ztdummy_register_interrupt(void); -extern int ztdummy_unregister_interrupt(void); - #define DEBUG_HFCMULTI_FIFO 0x00010000 #define DEBUG_HFCMULTI_CRC 0x00020000 #define DEBUG_HFCMULTI_INIT 0x00040000 @@ -13,6 +9,7 @@ extern int ztdummy_unregister_interrupt(void); #define DEBUG_HFCMULTI_MODE 0x00100000 #define DEBUG_HFCMULTI_MSG 0x00200000 #define DEBUG_HFCMULTI_STATE 0x00400000 +#define DEBUG_HFCMULTI_FILL 0x00800000 #define DEBUG_HFCMULTI_SYNC 0x01000000 #define DEBUG_HFCMULTI_DTMF 0x02000000 #define DEBUG_HFCMULTI_LOCK 0x80000000 @@ -170,6 +167,8 @@ struct hfc_multi { u_long chip; /* chip configuration */ int masterclk; /* port that provides master clock -1=off */ + unsigned char silence;/* silence byte */ + unsigned char silence_data[128];/* silence block */ int dtmf; /* flag that dtmf is currently in process */ int Flen; /* F-buffer size */ int Zlen; /* Z-buffer size (must be int for calculation)*/ @@ -198,6 +197,9 @@ struct hfc_multi { spinlock_t lock; /* the lock */ + struct mISDNclock *iclock; /* isdn clock support */ + int iclock_on; + /* * the channel index is counted from 0, regardless where the channel * is located on the hfc-channel. diff --git a/drivers/isdn/hardware/mISDN/hfc_pci.h b/drivers/isdn/hardware/mISDN/hfc_pci.h index 5783d22a18fe..3132ddc99fcd 100644 --- a/drivers/isdn/hardware/mISDN/hfc_pci.h +++ b/drivers/isdn/hardware/mISDN/hfc_pci.h @@ -26,7 +26,7 @@ * change mask and threshold simultaneously */ #define HFCPCI_BTRANS_THRESHOLD 128 -#define HFCPCI_BTRANS_MAX 256 +#define HFCPCI_FILLEMPTY 64 #define HFCPCI_BTRANS_THRESMASK 0x00 /* defines for PCI config */ diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c index c63e2f49da8a..97f4708b3879 100644 --- a/drivers/isdn/hardware/mISDN/hfcmulti.c +++ b/drivers/isdn/hardware/mISDN/hfcmulti.c @@ -133,6 +133,12 @@ * Give the value of the clock control register (A_ST_CLK_DLY) * of the S/T interfaces in TE mode. * This register is needed for the TBR3 certification, so don't change it. + * + * clock: + * NOTE: only one clock value must be given once + * Selects interface with clock source for mISDN and applications. + * Set to card number starting with 1. Set to -1 to disable. + * By default, the first card is used as clock source. */ /* @@ -140,7 +146,7 @@ * #define HFC_REGISTER_DEBUG */ -static const char *hfcmulti_revision = "2.02"; +#define HFC_MULTI_VERSION "2.03" #include <linux/module.h> #include <linux/pci.h> @@ -165,10 +171,6 @@ static LIST_HEAD(HFClist); static spinlock_t HFClock; /* global hfc list lock */ static void ph_state_change(struct dchannel *); -static void (*hfc_interrupt)(void); -static void (*register_interrupt)(void); -static int (*unregister_interrupt)(void); -static int interrupt_registered; static struct hfc_multi *syncmaster; static int plxsd_master; /* if we have a master card (yet) */ @@ -184,7 +186,6 @@ static int nt_t1_count[] = { 3840, 1920, 960, 480, 240, 120, 60, 30 }; #define CLKDEL_TE 0x0f /* CLKDEL in TE mode */ #define CLKDEL_NT 0x6c /* CLKDEL in NT mode (0x60 MUST be included!) */ -static u_char silence = 0xff; /* silence by LAW */ #define DIP_4S 0x1 /* DIP Switches for Beronet 1S/2S/4S cards */ #define DIP_8S 0x2 /* DIP Switches for Beronet 8S+ cards */ @@ -195,12 +196,13 @@ static u_char silence = 0xff; /* silence by LAW */ */ static uint type[MAX_CARDS]; -static uint pcm[MAX_CARDS]; -static uint dslot[MAX_CARDS]; +static int pcm[MAX_CARDS]; +static int dslot[MAX_CARDS]; static uint iomode[MAX_CARDS]; static uint port[MAX_PORTS]; static uint debug; static uint poll; +static int clock; static uint timer; static uint clockdelay_te = CLKDEL_TE; static uint clockdelay_nt = CLKDEL_NT; @@ -209,14 +211,16 @@ static int HFC_cnt, Port_cnt, PCM_cnt = 99; MODULE_AUTHOR("Andreas Eversberg"); MODULE_LICENSE("GPL"); +MODULE_VERSION(HFC_MULTI_VERSION); module_param(debug, uint, S_IRUGO | S_IWUSR); module_param(poll, uint, S_IRUGO | S_IWUSR); +module_param(clock, int, S_IRUGO | S_IWUSR); module_param(timer, uint, S_IRUGO | S_IWUSR); module_param(clockdelay_te, uint, S_IRUGO | S_IWUSR); module_param(clockdelay_nt, uint, S_IRUGO | S_IWUSR); module_param_array(type, uint, NULL, S_IRUGO | S_IWUSR); -module_param_array(pcm, uint, NULL, S_IRUGO | S_IWUSR); -module_param_array(dslot, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(pcm, int, NULL, S_IRUGO | S_IWUSR); +module_param_array(dslot, int, NULL, S_IRUGO | S_IWUSR); module_param_array(iomode, uint, NULL, S_IRUGO | S_IWUSR); module_param_array(port, uint, NULL, S_IRUGO | S_IWUSR); @@ -1419,19 +1423,6 @@ controller_fail: HFC_outb(hc, R_TI_WD, poll_timer); hc->hw.r_irqmsk_misc |= V_TI_IRQMSK; - /* - * set up 125us interrupt, only if function pointer is available - * and module parameter timer is set - */ - if (timer && hfc_interrupt && register_interrupt) { - /* only one chip should use this interrupt */ - timer = 0; - interrupt_registered = 1; - hc->hw.r_irqmsk_misc |= V_PROC_IRQMSK; - /* deactivate other interrupts in ztdummy */ - register_interrupt(); - } - /* set E1 state machine IRQ */ if (hc->type == 1) hc->hw.r_irqmsk_misc |= V_STA_IRQMSK; @@ -1991,6 +1982,17 @@ next_frame: return; /* no data */ } + /* "fill fifo if empty" feature */ + if (bch && test_bit(FLG_FILLEMPTY, &bch->Flags) + && !test_bit(FLG_HDLC, &bch->Flags) && z2 == z1) { + if (debug & DEBUG_HFCMULTI_FILL) + printk(KERN_DEBUG "%s: buffer empty, so we have " + "underrun\n", __func__); + /* fill buffer, to prevent future underrun */ + hc->write_fifo(hc, hc->silence_data, poll >> 1); + Zspace -= (poll >> 1); + } + /* if audio data and connected slot */ if (bch && (!test_bit(FLG_HDLC, &bch->Flags)) && (!*txpending) && slot_tx >= 0) { @@ -2027,7 +2029,6 @@ next_frame: __func__, hc->id + 1, ch, Zspace, z1, z2, ii-i, len-i, temp ? "HDLC":"TRANS"); - /* Have to prep the audio data */ hc->write_fifo(hc, d, ii - i); *idxp = ii; @@ -2066,7 +2067,7 @@ next_frame: * no more data at all. this prevents sending an undefined value. */ if (bch && test_bit(FLG_TRANSPARENT, &bch->Flags)) - HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence); + HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, hc->silence); } @@ -2583,7 +2584,6 @@ hfcmulti_interrupt(int intno, void *dev_id) static int iq1 = 0, iq2 = 0, iq3 = 0, iq4 = 0, iq5 = 0, iq6 = 0, iqcnt = 0; #endif - static int count; struct hfc_multi *hc = dev_id; struct dchannel *dch; u_char r_irq_statech, status, r_irq_misc, r_irq_oview; @@ -2637,6 +2637,7 @@ hfcmulti_interrupt(int intno, void *dev_id) iqcnt = 0; } #endif + if (!r_irq_statech && !(status & (V_DTMF_STA | V_LOST_STA | V_EXT_IRQSTA | V_MISC_IRQSTA | V_FR_IRQSTA))) { @@ -2657,6 +2658,7 @@ hfcmulti_interrupt(int intno, void *dev_id) if (status & V_MISC_IRQSTA) { /* misc IRQ */ r_irq_misc = HFC_inb_nodebug(hc, R_IRQ_MISC); + r_irq_misc &= hc->hw.r_irqmsk_misc; /* ignore disabled irqs */ if (r_irq_misc & V_STA_IRQ) { if (hc->type == 1) { /* state machine */ @@ -2691,23 +2693,20 @@ hfcmulti_interrupt(int intno, void *dev_id) plxsd_checksync(hc, 0); } } - if (r_irq_misc & V_TI_IRQ) + if (r_irq_misc & V_TI_IRQ) { + if (hc->iclock_on) + mISDN_clock_update(hc->iclock, poll, NULL); handle_timer_irq(hc); + } if (r_irq_misc & V_DTMF_IRQ) { - /* -> DTMF IRQ */ hfcmulti_dtmf(hc); } - /* TODO: REPLACE !!!! 125 us Interrupts are not acceptable */ if (r_irq_misc & V_IRQ_PROC) { - /* IRQ every 125us */ - count++; - /* generate 1kHz signal */ - if (count == 8) { - if (hfc_interrupt) - hfc_interrupt(); - count = 0; - } + static int irq_proc_cnt; + if (!irq_proc_cnt++) + printk(KERN_WARNING "%s: got V_IRQ_PROC -" + " this should not happen\n", __func__); } } @@ -2954,7 +2953,7 @@ mode_hfcmulti(struct hfc_multi *hc, int ch, int protocol, int slot_tx, HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); HFC_wait(hc); /* tx silence */ - HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence); + HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, hc->silence); HFC_outb(hc, R_SLOT, (((ch / 4) * 8) + ((ch % 4) * 4)) << 1); HFC_outb(hc, A_SL_CFG, 0x80 | 0x20 | (ch << 1)); @@ -2969,7 +2968,7 @@ mode_hfcmulti(struct hfc_multi *hc, int ch, int protocol, int slot_tx, HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); HFC_wait(hc); /* tx silence */ - HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence); + HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, hc->silence); /* enable RX fifo */ HFC_outb(hc, R_FIFO, (ch<<1)|1); HFC_wait(hc); @@ -3461,7 +3460,7 @@ channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) switch (cq->op) { case MISDN_CTRL_GETOP: cq->op = MISDN_CTRL_HFC_OP | MISDN_CTRL_HW_FEATURES_OP - | MISDN_CTRL_RX_OFF; + | MISDN_CTRL_RX_OFF | MISDN_CTRL_FILL_EMPTY; break; case MISDN_CTRL_RX_OFF: /* turn off / on rx stream */ hc->chan[bch->slot].rx_off = !!cq->p1; @@ -3476,6 +3475,12 @@ channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) printk(KERN_DEBUG "%s: RX_OFF request (nr=%d off=%d)\n", __func__, bch->nr, hc->chan[bch->slot].rx_off); break; + case MISDN_CTRL_FILL_EMPTY: /* fill fifo, if empty */ + test_and_set_bit(FLG_FILLEMPTY, &bch->Flags); + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: FILL_EMPTY request (nr=%d " + "off=%d)\n", __func__, bch->nr, !!cq->p1); + break; case MISDN_CTRL_HW_FEATURES: /* fill features structure */ if (debug & DEBUG_HFCMULTI_MSG) printk(KERN_DEBUG "%s: HW_FEATURE request\n", @@ -3992,6 +3997,7 @@ open_bchannel(struct hfc_multi *hc, struct dchannel *dch, } if (test_and_set_bit(FLG_OPEN, &bch->Flags)) return -EBUSY; /* b-channel can be only open once */ + test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags); bch->ch.protocol = rq->protocol; hc->chan[ch].rx_off = 0; rq->ch = &bch->ch; @@ -4081,6 +4087,15 @@ hfcm_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg) return err; } +static int +clockctl(void *priv, int enable) +{ + struct hfc_multi *hc = priv; + + hc->iclock_on = enable; + return 0; +} + /* * initialize the card */ @@ -4495,10 +4510,14 @@ release_card(struct hfc_multi *hc) printk(KERN_WARNING "%s: release card (%d) entered\n", __func__, hc->id); + /* unregister clock source */ + if (hc->iclock) + mISDN_unregister_clock(hc->iclock); + + /* disable irq */ spin_lock_irqsave(&hc->lock, flags); disable_hwirq(hc); spin_unlock_irqrestore(&hc->lock, flags); - udelay(1000); /* dimm leds */ @@ -4699,7 +4718,7 @@ init_e1_port(struct hfc_multi *hc, struct hm_map *m) } else hc->chan[hc->dslot].jitter = 2; /* default */ snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-e1.%d", HFC_cnt + 1); - ret = mISDN_register_device(&dch->dev, name); + ret = mISDN_register_device(&dch->dev, &hc->pci_dev->dev, name); if (ret) goto free_chan; hc->created[0] = 1; @@ -4807,9 +4826,9 @@ init_multi_port(struct hfc_multi *hc, int pt) test_and_set_bit(HFC_CFG_DIS_ECHANNEL, &hc->chan[i + 2].cfg); } - snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-%ds.%d/%d", + snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-%ds.%d-%d", hc->type, HFC_cnt + 1, pt + 1); - ret = mISDN_register_device(&dch->dev, name); + ret = mISDN_register_device(&dch->dev, &hc->pci_dev->dev, name); if (ret) goto free_chan; hc->created[pt] = 1; @@ -4828,6 +4847,7 @@ hfcmulti_init(struct pci_dev *pdev, const struct pci_device_id *ent) struct hfc_multi *hc; u_long flags; u_char dips = 0, pmj = 0; /* dip settings, port mode Jumpers */ + int i; if (HFC_cnt >= MAX_CARDS) { printk(KERN_ERR "too many cards (max=%d).\n", @@ -4861,11 +4881,11 @@ hfcmulti_init(struct pci_dev *pdev, const struct pci_device_id *ent) hc->id = HFC_cnt; hc->pcm = pcm[HFC_cnt]; hc->io_mode = iomode[HFC_cnt]; - if (dslot[HFC_cnt] < 0) { + if (dslot[HFC_cnt] < 0 && hc->type == 1) { hc->dslot = 0; printk(KERN_INFO "HFC-E1 card has disabled D-channel, but " "31 B-channels\n"); - } if (dslot[HFC_cnt] > 0 && dslot[HFC_cnt] < 32) { + } if (dslot[HFC_cnt] > 0 && dslot[HFC_cnt] < 32 && hc->type == 1) { hc->dslot = dslot[HFC_cnt]; printk(KERN_INFO "HFC-E1 card has alternating D-channel on " "time slot %d\n", dslot[HFC_cnt]); @@ -4876,9 +4896,17 @@ hfcmulti_init(struct pci_dev *pdev, const struct pci_device_id *ent) hc->masterclk = -1; if (type[HFC_cnt] & 0x100) { test_and_set_bit(HFC_CHIP_ULAW, &hc->chip); - silence = 0xff; /* ulaw silence */ + hc->silence = 0xff; /* ulaw silence */ } else - silence = 0x2a; /* alaw silence */ + hc->silence = 0x2a; /* alaw silence */ + if ((poll >> 1) > sizeof(hc->silence_data)) { + printk(KERN_ERR "HFCMULTI error: silence_data too small, " + "please fix\n"); + return -EINVAL; + } + for (i = 0; i < (poll >> 1); i++) + hc->silence_data[i] = hc->silence; + if (!(type[HFC_cnt] & 0x200)) test_and_set_bit(HFC_CHIP_DTMF, &hc->chip); @@ -4945,9 +4973,7 @@ hfcmulti_init(struct pci_dev *pdev, const struct pci_device_id *ent) switch (m->dip_type) { case DIP_4S: /* - * get DIP Setting for beroNet 1S/2S/4S cards - * check if Port Jumper config matches - * module param 'protocol' + * Get DIP setting for beroNet 1S/2S/4S cards * DIP Setting: (collect GPIO 13/14/15 (R_GPIO_IN1) + * GPI 19/23 (R_GPI_IN2)) */ @@ -4966,9 +4992,8 @@ hfcmulti_init(struct pci_dev *pdev, const struct pci_device_id *ent) break; case DIP_8S: /* - * get DIP Setting for beroNet 8S0+ cards - * - * enable PCI auxbridge function + * Get DIP Setting for beroNet 8S0+ cards + * Enable PCI auxbridge function */ HFC_outb(hc, R_BRG_PCM_CFG, 1 | V_PCM_CLK); /* prepare access to auxport */ @@ -5003,6 +5028,10 @@ hfcmulti_init(struct pci_dev *pdev, const struct pci_device_id *ent) list_add_tail(&hc->list, &HFClist); spin_unlock_irqrestore(&HFClock, flags); + /* use as clock source */ + if (clock == HFC_cnt + 1) + hc->iclock = mISDN_register_clock("HFCMulti", 0, clockctl, hc); + /* initialize hardware */ ret_err = init_card(hc); if (ret_err) { @@ -5137,8 +5166,7 @@ static struct pci_device_id hfmultipci_ids[] __devinitdata = { { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, 0, 0, H(14)}, /* old Eval */ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, - PCI_SUBDEVICE_ID_CCD_IOB8STR, 0, 0, H(15)}, - /* IOB8ST Recording */ + PCI_SUBDEVICE_ID_CCD_IOB8STR, 0, 0, H(15)}, /* IOB8ST Recording */ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, PCI_SUBDEVICE_ID_CCD_IOB8ST, 0, 0, H(16)}, /* IOB8ST */ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, @@ -5188,18 +5216,16 @@ hfcmulti_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct hm_map *m = (struct hm_map *)ent->driver_data; int ret; - if (m == NULL) { - if (ent->vendor == PCI_VENDOR_ID_CCD) - if (ent->device == PCI_DEVICE_ID_CCD_HFC4S || - ent->device == PCI_DEVICE_ID_CCD_HFC8S || - ent->device == PCI_DEVICE_ID_CCD_HFCE1) - printk(KERN_ERR - "unknown HFC multiport controller " - "(vendor:%x device:%x subvendor:%x " - "subdevice:%x) Please contact the " - "driver maintainer for support.\n", - ent->vendor, ent->device, - ent->subvendor, ent->subdevice); + if (m == NULL && ent->vendor == PCI_VENDOR_ID_CCD && ( + ent->device == PCI_DEVICE_ID_CCD_HFC4S || + ent->device == PCI_DEVICE_ID_CCD_HFC8S || + ent->device == PCI_DEVICE_ID_CCD_HFCE1)) { + printk(KERN_ERR + "Unknown HFC multiport controller (vendor:%x device:%x " + "subvendor:%x subdevice:%x)\n", ent->vendor, ent->device, + ent->subvendor, ent->subdevice); + printk(KERN_ERR + "Please contact the driver maintainer for support.\n"); return -ENODEV; } ret = hfcmulti_init(pdev, ent); @@ -5222,22 +5248,9 @@ HFCmulti_cleanup(void) { struct hfc_multi *card, *next; - /* unload interrupt function symbol */ - if (hfc_interrupt) - symbol_put(ztdummy_extern_interrupt); - if (register_interrupt) - symbol_put(ztdummy_register_interrupt); - if (unregister_interrupt) { - if (interrupt_registered) { - interrupt_registered = 0; - unregister_interrupt(); - } - symbol_put(ztdummy_unregister_interrupt); - } - + /* get rid of all devices of this driver */ list_for_each_entry_safe(card, next, &HFClist, list) release_card(card); - /* get rid of all devices of this driver */ pci_unregister_driver(&hfcmultipci_driver); } @@ -5246,8 +5259,10 @@ HFCmulti_init(void) { int err; + printk(KERN_INFO "mISDN: HFC-multi driver %s\n", HFC_MULTI_VERSION); + #ifdef IRQ_DEBUG - printk(KERN_ERR "%s: IRQ_DEBUG IS ENABLED!\n", __func__); + printk(KERN_DEBUG "%s: IRQ_DEBUG IS ENABLED!\n", __func__); #endif spin_lock_init(&HFClock); @@ -5256,22 +5271,11 @@ HFCmulti_init(void) if (debug & DEBUG_HFCMULTI_INIT) printk(KERN_DEBUG "%s: init entered\n", __func__); - hfc_interrupt = symbol_get(ztdummy_extern_interrupt); - register_interrupt = symbol_get(ztdummy_register_interrupt); - unregister_interrupt = symbol_get(ztdummy_unregister_interrupt); - printk(KERN_INFO "mISDN: HFC-multi driver %s\n", - hfcmulti_revision); - switch (poll) { case 0: poll_timer = 6; poll = 128; break; - /* - * wenn dieses break nochmal verschwindet, - * gibt es heisse ohren :-) - * "without the break you will get hot ears ???" - */ case 8: poll_timer = 2; break; @@ -5298,20 +5302,12 @@ HFCmulti_init(void) } + if (!clock) + clock = 1; + err = pci_register_driver(&hfcmultipci_driver); if (err < 0) { printk(KERN_ERR "error registering pci driver: %x\n", err); - if (hfc_interrupt) - symbol_put(ztdummy_extern_interrupt); - if (register_interrupt) - symbol_put(ztdummy_register_interrupt); - if (unregister_interrupt) { - if (interrupt_registered) { - interrupt_registered = 0; - unregister_interrupt(); - } - symbol_put(ztdummy_unregister_interrupt); - } return err; } return 0; diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c index cd8302af40eb..917bf41a293b 100644 --- a/drivers/isdn/hardware/mISDN/hfcpci.c +++ b/drivers/isdn/hardware/mISDN/hfcpci.c @@ -23,6 +23,25 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * + * Module options: + * + * debug: + * NOTE: only one poll value must be given for all cards + * See hfc_pci.h for debug flags. + * + * poll: + * NOTE: only one poll value must be given for all cards + * Give the number of samples for each fifo process. + * By default 128 is used. Decrease to reduce delay, increase to + * reduce cpu load. If unsure, don't mess with it! + * A value of 128 will use controller's interrupt. Other values will + * use kernel timer, because the controller will not allow lower values + * than 128. + * Also note that the value depends on the kernel timer frequency. + * If kernel uses a frequency of 1000 Hz, steps of 8 samples are possible. + * If the kernel uses 100 Hz, steps of 80 samples are possible. + * If the kernel uses 300 Hz, steps of about 26 samples are possible. + * */ #include <linux/module.h> @@ -34,16 +53,16 @@ static const char *hfcpci_revision = "2.0"; -#define MAX_CARDS 8 static int HFC_cnt; static uint debug; +static uint poll, tics; +struct timer_list hfc_tl; +u32 hfc_jiffies; MODULE_AUTHOR("Karsten Keil"); MODULE_LICENSE("GPL"); module_param(debug, uint, 0); - -static LIST_HEAD(HFClist); -static DEFINE_RWLOCK(HFClock); +module_param(poll, uint, S_IRUGO | S_IWUSR); enum { HFC_CCD_2BD0, @@ -114,7 +133,6 @@ struct hfcPCI_hw { struct hfc_pci { - struct list_head list; u_char subtype; u_char chanlimit; u_char initdone; @@ -520,9 +538,9 @@ receive_dmsg(struct hfc_pci *hc) } /* - * check for transparent receive data and read max one threshold size if avail + * check for transparent receive data and read max one 'poll' size if avail */ -static int +static void hfcpci_empty_fifo_trans(struct bchannel *bch, struct bzfifo *bz, u_char *bdata) { __le16 *z1r, *z2r; @@ -534,17 +552,19 @@ hfcpci_empty_fifo_trans(struct bchannel *bch, struct bzfifo *bz, u_char *bdata) fcnt = le16_to_cpu(*z1r) - le16_to_cpu(*z2r); if (!fcnt) - return 0; /* no data avail */ + return; /* no data avail */ if (fcnt <= 0) fcnt += B_FIFO_SIZE; /* bytes actually buffered */ - if (fcnt > HFCPCI_BTRANS_THRESHOLD) - fcnt = HFCPCI_BTRANS_THRESHOLD; /* limit size */ - new_z2 = le16_to_cpu(*z2r) + fcnt; /* new position in fifo */ if (new_z2 >= (B_FIFO_SIZE + B_SUB_VAL)) new_z2 -= B_FIFO_SIZE; /* buffer wrap */ + if (fcnt > MAX_DATA_SIZE) { /* flush, if oversized */ + *z2r = cpu_to_le16(new_z2); /* new position */ + return; + } + bch->rx_skb = mI_alloc_skb(fcnt, GFP_ATOMIC); if (bch->rx_skb) { ptr = skb_put(bch->rx_skb, fcnt); @@ -569,7 +589,6 @@ hfcpci_empty_fifo_trans(struct bchannel *bch, struct bzfifo *bz, u_char *bdata) printk(KERN_WARNING "HFCPCI: receive out of memory\n"); *z2r = cpu_to_le16(new_z2); /* new position */ - return 1; } /* @@ -580,12 +599,11 @@ main_rec_hfcpci(struct bchannel *bch) { struct hfc_pci *hc = bch->hw; int rcnt, real_fifo; - int receive, count = 5; + int receive = 0, count = 5; struct bzfifo *bz; u_char *bdata; struct zt *zp; - if ((bch->nr & 2) && (!hc->hw.bswapped)) { bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b2; bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.rxdat_b2; @@ -625,9 +643,10 @@ Begin: receive = 1; else receive = 0; - } else if (test_bit(FLG_TRANSPARENT, &bch->Flags)) - receive = hfcpci_empty_fifo_trans(bch, bz, bdata); - else + } else if (test_bit(FLG_TRANSPARENT, &bch->Flags)) { + hfcpci_empty_fifo_trans(bch, bz, bdata); + return; + } else receive = 0; if (count && receive) goto Begin; @@ -751,11 +770,41 @@ hfcpci_fill_fifo(struct bchannel *bch) /* fcnt contains available bytes in fifo */ fcnt = B_FIFO_SIZE - fcnt; /* remaining bytes to send (bytes in fifo) */ + + /* "fill fifo if empty" feature */ + if (test_bit(FLG_FILLEMPTY, &bch->Flags) && !fcnt) { + /* printk(KERN_DEBUG "%s: buffer empty, so we have " + "underrun\n", __func__); */ + /* fill buffer, to prevent future underrun */ + count = HFCPCI_FILLEMPTY; + new_z1 = le16_to_cpu(*z1t) + count; + /* new buffer Position */ + if (new_z1 >= (B_FIFO_SIZE + B_SUB_VAL)) + new_z1 -= B_FIFO_SIZE; /* buffer wrap */ + dst = bdata + (le16_to_cpu(*z1t) - B_SUB_VAL); + maxlen = (B_FIFO_SIZE + B_SUB_VAL) - le16_to_cpu(*z1t); + /* end of fifo */ + if (bch->debug & DEBUG_HW_BFIFO) + printk(KERN_DEBUG "hfcpci_FFt fillempty " + "fcnt(%d) maxl(%d) nz1(%x) dst(%p)\n", + fcnt, maxlen, new_z1, dst); + fcnt += count; + if (maxlen > count) + maxlen = count; /* limit size */ + memset(dst, 0x2a, maxlen); /* first copy */ + count -= maxlen; /* remaining bytes */ + if (count) { + dst = bdata; /* start of buffer */ + memset(dst, 0x2a, count); + } + *z1t = cpu_to_le16(new_z1); /* now send data */ + } + next_t_frame: count = bch->tx_skb->len - bch->tx_idx; - /* maximum fill shall be HFCPCI_BTRANS_MAX */ - if (count > HFCPCI_BTRANS_MAX - fcnt) - count = HFCPCI_BTRANS_MAX - fcnt; + /* maximum fill shall be poll*2 */ + if (count > (poll << 1) - fcnt) + count = (poll << 1) - fcnt; if (count <= 0) return; /* data is suitable for fifo */ @@ -1135,37 +1184,37 @@ hfcpci_int(int intno, void *dev_id) val &= ~0x80; Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt | HFCPCI_CLTIMER); } - if (val & 0x08) { + if (val & 0x08) { /* B1 rx */ bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1); if (bch) main_rec_hfcpci(bch); else if (hc->dch.debug) printk(KERN_DEBUG "hfcpci spurious 0x08 IRQ\n"); } - if (val & 0x10) { + if (val & 0x10) { /* B2 rx */ bch = Sel_BCS(hc, 2); if (bch) main_rec_hfcpci(bch); else if (hc->dch.debug) printk(KERN_DEBUG "hfcpci spurious 0x10 IRQ\n"); } - if (val & 0x01) { + if (val & 0x01) { /* B1 tx */ bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1); if (bch) tx_birq(bch); else if (hc->dch.debug) printk(KERN_DEBUG "hfcpci spurious 0x01 IRQ\n"); } - if (val & 0x02) { + if (val & 0x02) { /* B2 tx */ bch = Sel_BCS(hc, 2); if (bch) tx_birq(bch); else if (hc->dch.debug) printk(KERN_DEBUG "hfcpci spurious 0x02 IRQ\n"); } - if (val & 0x20) + if (val & 0x20) /* D rx */ receive_dmsg(hc); - if (val & 0x04) { /* dframe transmitted */ + if (val & 0x04) { /* D tx */ if (test_and_clear_bit(FLG_BUSY_TIMER, &hc->dch.Flags)) del_timer(&hc->dch.timer); tx_dirq(&hc->dch); @@ -1283,14 +1332,16 @@ mode_hfcpci(struct bchannel *bch, int bc, int protocol) } if (fifo2 & 2) { hc->hw.fifo_en |= HFCPCI_FIFOEN_B2; - hc->hw.int_m1 |= (HFCPCI_INTS_B2TRANS + - HFCPCI_INTS_B2REC); + if (!tics) + hc->hw.int_m1 |= (HFCPCI_INTS_B2TRANS + + HFCPCI_INTS_B2REC); hc->hw.ctmt |= 2; hc->hw.conn &= ~0x18; } else { hc->hw.fifo_en |= HFCPCI_FIFOEN_B1; - hc->hw.int_m1 |= (HFCPCI_INTS_B1TRANS + - HFCPCI_INTS_B1REC); + if (!tics) + hc->hw.int_m1 |= (HFCPCI_INTS_B1TRANS + + HFCPCI_INTS_B1REC); hc->hw.ctmt |= 1; hc->hw.conn &= ~0x03; } @@ -1398,7 +1449,8 @@ set_hfcpci_rxtest(struct bchannel *bch, int protocol, int chan) if (chan & 2) { hc->hw.sctrl_r |= SCTRL_B2_ENA; hc->hw.fifo_en |= HFCPCI_FIFOEN_B2RX; - hc->hw.int_m1 |= HFCPCI_INTS_B2REC; + if (!tics) + hc->hw.int_m1 |= HFCPCI_INTS_B2REC; hc->hw.ctmt |= 2; hc->hw.conn &= ~0x18; #ifdef REVERSE_BITORDER @@ -1407,7 +1459,8 @@ set_hfcpci_rxtest(struct bchannel *bch, int protocol, int chan) } else { hc->hw.sctrl_r |= SCTRL_B1_ENA; hc->hw.fifo_en |= HFCPCI_FIFOEN_B1RX; - hc->hw.int_m1 |= HFCPCI_INTS_B1REC; + if (!tics) + hc->hw.int_m1 |= HFCPCI_INTS_B1REC; hc->hw.ctmt |= 1; hc->hw.conn &= ~0x03; #ifdef REVERSE_BITORDER @@ -1481,11 +1534,17 @@ deactivate_bchannel(struct bchannel *bch) static int channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) { - int ret = 0; + int ret = 0; switch (cq->op) { case MISDN_CTRL_GETOP: - cq->op = 0; + cq->op = MISDN_CTRL_FILL_EMPTY; + break; + case MISDN_CTRL_FILL_EMPTY: /* fill fifo, if empty */ + test_and_set_bit(FLG_FILLEMPTY, &bch->Flags); + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: FILL_EMPTY request (nr=%d " + "off=%d)\n", __func__, bch->nr, !!cq->p1); break; default: printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op); @@ -1859,6 +1918,10 @@ open_dchannel(struct hfc_pci *hc, struct mISDNchannel *ch, hc->dch.dev.id, __builtin_return_address(0)); if (rq->protocol == ISDN_P_NONE) return -EINVAL; + if (rq->adr.channel == 1) { + /* TODO: E-Channel */ + return -EINVAL; + } if (!hc->initdone) { if (rq->protocol == ISDN_P_TE_S0) { err = create_l1(&hc->dch, hfc_l1callback); @@ -1874,6 +1937,11 @@ open_dchannel(struct hfc_pci *hc, struct mISDNchannel *ch, if (rq->protocol != ch->protocol) { if (hc->hw.protocol == ISDN_P_TE_S0) l1_event(hc->dch.l1, CLOSE_CHANNEL); + if (rq->protocol == ISDN_P_TE_S0) { + err = create_l1(&hc->dch, hfc_l1callback); + if (err) + return err; + } hc->hw.protocol = rq->protocol; ch->protocol = rq->protocol; hfcpci_setmode(hc); @@ -1903,6 +1971,7 @@ open_bchannel(struct hfc_pci *hc, struct channel_req *rq) bch = &hc->bch[rq->adr.channel - 1]; if (test_and_set_bit(FLG_OPEN, &bch->Flags)) return -EBUSY; /* b-channel can be only open once */ + test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags); bch->ch.protocol = rq->protocol; rq->ch = &bch->ch; /* TODO: E-channel */ if (!try_module_get(THIS_MODULE)) @@ -1928,7 +1997,8 @@ hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg) switch (cmd) { case OPEN_CHANNEL: rq = arg; - if (rq->adr.channel == 0) + if ((rq->protocol == ISDN_P_TE_S0) || + (rq->protocol == ISDN_P_NT_S0)) err = open_dchannel(hc, ch, rq); else err = open_bchannel(hc, rq); @@ -2027,7 +2097,6 @@ release_card(struct hfc_pci *hc) { mISDN_freebchannel(&hc->bch[1]); mISDN_freebchannel(&hc->bch[0]); mISDN_freedchannel(&hc->dch); - list_del(&hc->list); pci_set_drvdata(hc->pdev, NULL); kfree(hc); } @@ -2037,12 +2106,8 @@ setup_card(struct hfc_pci *card) { int err = -EINVAL; u_int i; - u_long flags; char name[MISDN_MAX_IDLEN]; - if (HFC_cnt >= MAX_CARDS) - return -EINVAL; /* maybe better value */ - card->dch.debug = debug; spin_lock_init(&card->lock); mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, ph_state); @@ -2068,13 +2133,10 @@ setup_card(struct hfc_pci *card) if (err) goto error; snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-pci.%d", HFC_cnt + 1); - err = mISDN_register_device(&card->dch.dev, name); + err = mISDN_register_device(&card->dch.dev, &card->pdev->dev, name); if (err) goto error; HFC_cnt++; - write_lock_irqsave(&HFClock, flags); - list_add_tail(&card->list, &HFClist); - write_unlock_irqrestore(&HFClock, flags); printk(KERN_INFO "HFC %d cards installed\n", HFC_cnt); return 0; error: @@ -2210,15 +2272,12 @@ static void __devexit hfc_remove_pci(struct pci_dev *pdev) { struct hfc_pci *card = pci_get_drvdata(pdev); - u_long flags; - if (card) { - write_lock_irqsave(&HFClock, flags); + if (card) release_card(card); - write_unlock_irqrestore(&HFClock, flags); - } else + else if (debug) - printk(KERN_WARNING "%s: drvdata allready removed\n", + printk(KERN_WARNING "%s: drvdata already removed\n", __func__); } @@ -2230,25 +2289,97 @@ static struct pci_driver hfc_driver = { .id_table = hfc_ids, }; +static int +_hfcpci_softirq(struct device *dev, void *arg) +{ + struct hfc_pci *hc = dev_get_drvdata(dev); + struct bchannel *bch; + if (hc == NULL) + return 0; + + if (hc->hw.int_m2 & HFCPCI_IRQ_ENABLE) { + spin_lock(&hc->lock); + bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1); + if (bch && bch->state == ISDN_P_B_RAW) { /* B1 rx&tx */ + main_rec_hfcpci(bch); + tx_birq(bch); + } + bch = Sel_BCS(hc, hc->hw.bswapped ? 1 : 2); + if (bch && bch->state == ISDN_P_B_RAW) { /* B2 rx&tx */ + main_rec_hfcpci(bch); + tx_birq(bch); + } + spin_unlock(&hc->lock); + } + return 0; +} + +static void +hfcpci_softirq(void *arg) +{ + (void) driver_for_each_device(&hfc_driver.driver, NULL, arg, + _hfcpci_softirq); + + /* if next event would be in the past ... */ + if ((s32)(hfc_jiffies + tics - jiffies) <= 0) + hfc_jiffies = jiffies + 1; + else + hfc_jiffies += tics; + hfc_tl.expires = hfc_jiffies; + add_timer(&hfc_tl); +} + static int __init HFC_init(void) { int err; + if (!poll) + poll = HFCPCI_BTRANS_THRESHOLD; + + if (poll != HFCPCI_BTRANS_THRESHOLD) { + tics = (poll * HZ) / 8000; + if (tics < 1) + tics = 1; + poll = (tics * 8000) / HZ; + if (poll > 256 || poll < 8) { + printk(KERN_ERR "%s: Wrong poll value %d not in range " + "of 8..256.\n", __func__, poll); + err = -EINVAL; + return err; + } + } + if (poll != HFCPCI_BTRANS_THRESHOLD) { + printk(KERN_INFO "%s: Using alternative poll value of %d\n", + __func__, poll); + hfc_tl.function = (void *)hfcpci_softirq; + hfc_tl.data = 0; + init_timer(&hfc_tl); + hfc_tl.expires = jiffies + tics; + hfc_jiffies = hfc_tl.expires; + add_timer(&hfc_tl); + } else + tics = 0; /* indicate the use of controller's timer */ + err = pci_register_driver(&hfc_driver); + if (err) { + if (timer_pending(&hfc_tl)) + del_timer(&hfc_tl); + } + return err; } static void __exit HFC_cleanup(void) { - struct hfc_pci *card, *next; + if (timer_pending(&hfc_tl)) + del_timer(&hfc_tl); - list_for_each_entry_safe(card, next, &HFClist, list) { - release_card(card); - } pci_unregister_driver(&hfc_driver); } module_init(HFC_init); module_exit(HFC_cleanup); + +MODULE_DEVICE_TABLE(pci, hfc_ids); diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c new file mode 100644 index 000000000000..ba6925fbf38a --- /dev/null +++ b/drivers/isdn/hardware/mISDN/hfcsusb.c @@ -0,0 +1,2196 @@ +/* hfcsusb.c + * mISDN driver for Colognechip HFC-S USB chip + * + * Copyright 2001 by Peter Sprenger (sprenger@moving-bytes.de) + * Copyright 2008 by Martin Bachem (info@bachem-it.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * module params + * debug=<n>, default=0, with n=0xHHHHGGGG + * H - l1 driver flags described in hfcsusb.h + * G - common mISDN debug flags described at mISDNhw.h + * + * poll=<n>, default 128 + * n : burst size of PH_DATA_IND at transparent rx data + * + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/usb.h> +#include <linux/mISDNhw.h> +#include "hfcsusb.h" + +const char *hfcsusb_rev = "Revision: 0.3.3 (socket), 2008-11-05"; + +static unsigned int debug; +static int poll = DEFAULT_TRANSP_BURST_SZ; + +static LIST_HEAD(HFClist); +static DEFINE_RWLOCK(HFClock); + + +MODULE_AUTHOR("Martin Bachem"); +MODULE_LICENSE("GPL"); +module_param(debug, uint, S_IRUGO | S_IWUSR); +module_param(poll, int, 0); + +static int hfcsusb_cnt; + +/* some function prototypes */ +static void hfcsusb_ph_command(struct hfcsusb *hw, u_char command); +static void release_hw(struct hfcsusb *hw); +static void reset_hfcsusb(struct hfcsusb *hw); +static void setPortMode(struct hfcsusb *hw); +static void hfcsusb_start_endpoint(struct hfcsusb *hw, int channel); +static void hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel); +static int hfcsusb_setup_bch(struct bchannel *bch, int protocol); +static void deactivate_bchannel(struct bchannel *bch); +static void hfcsusb_ph_info(struct hfcsusb *hw); + +/* start next background transfer for control channel */ +static void +ctrl_start_transfer(struct hfcsusb *hw) +{ + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); + + if (hw->ctrl_cnt) { + hw->ctrl_urb->pipe = hw->ctrl_out_pipe; + hw->ctrl_urb->setup_packet = (u_char *)&hw->ctrl_write; + hw->ctrl_urb->transfer_buffer = NULL; + hw->ctrl_urb->transfer_buffer_length = 0; + hw->ctrl_write.wIndex = + cpu_to_le16(hw->ctrl_buff[hw->ctrl_out_idx].hfcs_reg); + hw->ctrl_write.wValue = + cpu_to_le16(hw->ctrl_buff[hw->ctrl_out_idx].reg_val); + + usb_submit_urb(hw->ctrl_urb, GFP_ATOMIC); + } +} + +/* + * queue a control transfer request to write HFC-S USB + * chip register using CTRL resuest queue + */ +static int write_reg(struct hfcsusb *hw, __u8 reg, __u8 val) +{ + struct ctrl_buf *buf; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s reg(0x%02x) val(0x%02x)\n", + hw->name, __func__, reg, val); + + spin_lock(&hw->ctrl_lock); + if (hw->ctrl_cnt >= HFC_CTRL_BUFSIZE) + return 1; + buf = &hw->ctrl_buff[hw->ctrl_in_idx]; + buf->hfcs_reg = reg; + buf->reg_val = val; + if (++hw->ctrl_in_idx >= HFC_CTRL_BUFSIZE) + hw->ctrl_in_idx = 0; + if (++hw->ctrl_cnt == 1) + ctrl_start_transfer(hw); + spin_unlock(&hw->ctrl_lock); + + return 0; +} + +/* control completion routine handling background control cmds */ +static void +ctrl_complete(struct urb *urb) +{ + struct hfcsusb *hw = (struct hfcsusb *) urb->context; + struct ctrl_buf *buf; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); + + urb->dev = hw->dev; + if (hw->ctrl_cnt) { + buf = &hw->ctrl_buff[hw->ctrl_out_idx]; + hw->ctrl_cnt--; /* decrement actual count */ + if (++hw->ctrl_out_idx >= HFC_CTRL_BUFSIZE) + hw->ctrl_out_idx = 0; /* pointer wrap */ + + ctrl_start_transfer(hw); /* start next transfer */ + } +} + +/* handle LED bits */ +static void +set_led_bit(struct hfcsusb *hw, signed short led_bits, int set_on) +{ + if (set_on) { + if (led_bits < 0) + hw->led_state &= ~abs(led_bits); + else + hw->led_state |= led_bits; + } else { + if (led_bits < 0) + hw->led_state |= abs(led_bits); + else + hw->led_state &= ~led_bits; + } +} + +/* handle LED requests */ +static void +handle_led(struct hfcsusb *hw, int event) +{ + struct hfcsusb_vdata *driver_info = (struct hfcsusb_vdata *) + hfcsusb_idtab[hw->vend_idx].driver_info; + __u8 tmpled; + + if (driver_info->led_scheme == LED_OFF) + return; + tmpled = hw->led_state; + + switch (event) { + case LED_POWER_ON: + set_led_bit(hw, driver_info->led_bits[0], 1); + set_led_bit(hw, driver_info->led_bits[1], 0); + set_led_bit(hw, driver_info->led_bits[2], 0); + set_led_bit(hw, driver_info->led_bits[3], 0); + break; + case LED_POWER_OFF: + set_led_bit(hw, driver_info->led_bits[0], 0); + set_led_bit(hw, driver_info->led_bits[1], 0); + set_led_bit(hw, driver_info->led_bits[2], 0); + set_led_bit(hw, driver_info->led_bits[3], 0); + break; + case LED_S0_ON: + set_led_bit(hw, driver_info->led_bits[1], 1); + break; + case LED_S0_OFF: + set_led_bit(hw, driver_info->led_bits[1], 0); + break; + case LED_B1_ON: + set_led_bit(hw, driver_info->led_bits[2], 1); + break; + case LED_B1_OFF: + set_led_bit(hw, driver_info->led_bits[2], 0); + break; + case LED_B2_ON: + set_led_bit(hw, driver_info->led_bits[3], 1); + break; + case LED_B2_OFF: + set_led_bit(hw, driver_info->led_bits[3], 0); + break; + } + + if (hw->led_state != tmpled) { + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s reg(0x%02x) val(x%02x)\n", + hw->name, __func__, + HFCUSB_P_DATA, hw->led_state); + + write_reg(hw, HFCUSB_P_DATA, hw->led_state); + } +} + +/* + * Layer2 -> Layer 1 Bchannel data + */ +static int +hfcusb_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct bchannel *bch = container_of(ch, struct bchannel, ch); + struct hfcsusb *hw = bch->hw; + int ret = -EINVAL; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + u_long flags; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); + + switch (hh->prim) { + case PH_DATA_REQ: + spin_lock_irqsave(&hw->lock, flags); + ret = bchannel_senddata(bch, skb); + spin_unlock_irqrestore(&hw->lock, flags); + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s PH_DATA_REQ ret(%i)\n", + hw->name, __func__, ret); + if (ret > 0) { + /* + * other l1 drivers don't send early confirms on + * transp data, but hfcsusb does because tx_next + * skb is needed in tx_iso_complete() + */ + queue_ch_frame(ch, PH_DATA_CNF, hh->id, NULL); + ret = 0; + } + return ret; + case PH_ACTIVATE_REQ: + if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) { + hfcsusb_start_endpoint(hw, bch->nr); + ret = hfcsusb_setup_bch(bch, ch->protocol); + } else + ret = 0; + if (!ret) + _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, + 0, NULL, GFP_KERNEL); + break; + case PH_DEACTIVATE_REQ: + deactivate_bchannel(bch); + _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, + 0, NULL, GFP_KERNEL); + ret = 0; + break; + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +/* + * send full D/B channel status information + * as MPH_INFORMATION_IND + */ +static void +hfcsusb_ph_info(struct hfcsusb *hw) +{ + struct ph_info *phi; + struct dchannel *dch = &hw->dch; + int i; + + phi = kzalloc(sizeof(struct ph_info) + + dch->dev.nrbchan * sizeof(struct ph_info_ch), GFP_ATOMIC); + phi->dch.ch.protocol = hw->protocol; + phi->dch.ch.Flags = dch->Flags; + phi->dch.state = dch->state; + phi->dch.num_bch = dch->dev.nrbchan; + for (i = 0; i < dch->dev.nrbchan; i++) { + phi->bch[i].protocol = hw->bch[i].ch.protocol; + phi->bch[i].Flags = hw->bch[i].Flags; + } + _queue_data(&dch->dev.D, MPH_INFORMATION_IND, MISDN_ID_ANY, + sizeof(struct ph_info_dch) + dch->dev.nrbchan * + sizeof(struct ph_info_ch), phi, GFP_ATOMIC); +} + +/* + * Layer2 -> Layer 1 Dchannel data + */ +static int +hfcusb_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); + struct dchannel *dch = container_of(dev, struct dchannel, dev); + struct mISDNhead *hh = mISDN_HEAD_P(skb); + struct hfcsusb *hw = dch->hw; + int ret = -EINVAL; + u_long flags; + + switch (hh->prim) { + case PH_DATA_REQ: + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s: PH_DATA_REQ\n", + hw->name, __func__); + + spin_lock_irqsave(&hw->lock, flags); + ret = dchannel_senddata(dch, skb); + spin_unlock_irqrestore(&hw->lock, flags); + if (ret > 0) { + ret = 0; + queue_ch_frame(ch, PH_DATA_CNF, hh->id, NULL); + } + break; + + case PH_ACTIVATE_REQ: + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s: PH_ACTIVATE_REQ %s\n", + hw->name, __func__, + (hw->protocol == ISDN_P_NT_S0) ? "NT" : "TE"); + + if (hw->protocol == ISDN_P_NT_S0) { + ret = 0; + if (test_bit(FLG_ACTIVE, &dch->Flags)) { + _queue_data(&dch->dev.D, + PH_ACTIVATE_IND, MISDN_ID_ANY, 0, + NULL, GFP_ATOMIC); + } else { + hfcsusb_ph_command(hw, + HFC_L1_ACTIVATE_NT); + test_and_set_bit(FLG_L2_ACTIVATED, + &dch->Flags); + } + } else { + hfcsusb_ph_command(hw, HFC_L1_ACTIVATE_TE); + ret = l1_event(dch->l1, hh->prim); + } + break; + + case PH_DEACTIVATE_REQ: + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s: PH_DEACTIVATE_REQ\n", + hw->name, __func__); + test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); + + if (hw->protocol == ISDN_P_NT_S0) { + hfcsusb_ph_command(hw, HFC_L1_DEACTIVATE_NT); + spin_lock_irqsave(&hw->lock, flags); + skb_queue_purge(&dch->squeue); + if (dch->tx_skb) { + dev_kfree_skb(dch->tx_skb); + dch->tx_skb = NULL; + } + dch->tx_idx = 0; + if (dch->rx_skb) { + dev_kfree_skb(dch->rx_skb); + dch->rx_skb = NULL; + } + test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); + spin_unlock_irqrestore(&hw->lock, flags); +#ifdef FIXME + if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags)) + dchannel_sched_event(&hc->dch, D_CLEARBUSY); +#endif + ret = 0; + } else + ret = l1_event(dch->l1, hh->prim); + break; + case MPH_INFORMATION_REQ: + hfcsusb_ph_info(hw); + ret = 0; + break; + } + + return ret; +} + +/* + * Layer 1 callback function + */ +static int +hfc_l1callback(struct dchannel *dch, u_int cmd) +{ + struct hfcsusb *hw = dch->hw; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s cmd 0x%x\n", + hw->name, __func__, cmd); + + switch (cmd) { + case INFO3_P8: + case INFO3_P10: + case HW_RESET_REQ: + case HW_POWERUP_REQ: + break; + + case HW_DEACT_REQ: + skb_queue_purge(&dch->squeue); + if (dch->tx_skb) { + dev_kfree_skb(dch->tx_skb); + dch->tx_skb = NULL; + } + dch->tx_idx = 0; + if (dch->rx_skb) { + dev_kfree_skb(dch->rx_skb); + dch->rx_skb = NULL; + } + test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); + break; + case PH_ACTIVATE_IND: + test_and_set_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, + GFP_ATOMIC); + break; + case PH_DEACTIVATE_IND: + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, + GFP_ATOMIC); + break; + default: + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: unknown cmd %x\n", + hw->name, __func__, cmd); + return -1; + } + hfcsusb_ph_info(hw); + return 0; +} + +static int +open_dchannel(struct hfcsusb *hw, struct mISDNchannel *ch, + struct channel_req *rq) +{ + int err = 0; + + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: %s: dev(%d) open addr(%i) from %p\n", + hw->name, __func__, hw->dch.dev.id, rq->adr.channel, + __builtin_return_address(0)); + if (rq->protocol == ISDN_P_NONE) + return -EINVAL; + + test_and_clear_bit(FLG_ACTIVE, &hw->dch.Flags); + test_and_clear_bit(FLG_ACTIVE, &hw->ech.Flags); + hfcsusb_start_endpoint(hw, HFC_CHAN_D); + + /* E-Channel logging */ + if (rq->adr.channel == 1) { + if (hw->fifos[HFCUSB_PCM_RX].pipe) { + hfcsusb_start_endpoint(hw, HFC_CHAN_E); + set_bit(FLG_ACTIVE, &hw->ech.Flags); + _queue_data(&hw->ech.dev.D, PH_ACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + } else + return -EINVAL; + } + + if (!hw->initdone) { + hw->protocol = rq->protocol; + if (rq->protocol == ISDN_P_TE_S0) { + err = create_l1(&hw->dch, hfc_l1callback); + if (err) + return err; + } + setPortMode(hw); + ch->protocol = rq->protocol; + hw->initdone = 1; + } else { + if (rq->protocol != ch->protocol) + return -EPROTONOSUPPORT; + } + + if (((ch->protocol == ISDN_P_NT_S0) && (hw->dch.state == 3)) || + ((ch->protocol == ISDN_P_TE_S0) && (hw->dch.state == 7))) + _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, + 0, NULL, GFP_KERNEL); + rq->ch = ch; + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s: %s: cannot get module\n", + hw->name, __func__); + return 0; +} + +static int +open_bchannel(struct hfcsusb *hw, struct channel_req *rq) +{ + struct bchannel *bch; + + if (rq->adr.channel > 2) + return -EINVAL; + if (rq->protocol == ISDN_P_NONE) + return -EINVAL; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s B%i\n", + hw->name, __func__, rq->adr.channel); + + bch = &hw->bch[rq->adr.channel - 1]; + if (test_and_set_bit(FLG_OPEN, &bch->Flags)) + return -EBUSY; /* b-channel can be only open once */ + test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags); + bch->ch.protocol = rq->protocol; + rq->ch = &bch->ch; + + /* start USB endpoint for bchannel */ + if (rq->adr.channel == 1) + hfcsusb_start_endpoint(hw, HFC_CHAN_B1); + else + hfcsusb_start_endpoint(hw, HFC_CHAN_B2); + + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s: %s:cannot get module\n", + hw->name, __func__); + return 0; +} + +static int +channel_ctrl(struct hfcsusb *hw, struct mISDN_ctrl_req *cq) +{ + int ret = 0; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s op(0x%x) channel(0x%x)\n", + hw->name, __func__, (cq->op), (cq->channel)); + + switch (cq->op) { + case MISDN_CTRL_GETOP: + cq->op = MISDN_CTRL_LOOP | MISDN_CTRL_CONNECT | + MISDN_CTRL_DISCONNECT; + break; + default: + printk(KERN_WARNING "%s: %s: unknown Op %x\n", + hw->name, __func__, cq->op); + ret = -EINVAL; + break; + } + return ret; +} + +/* + * device control function + */ +static int +hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); + struct dchannel *dch = container_of(dev, struct dchannel, dev); + struct hfcsusb *hw = dch->hw; + struct channel_req *rq; + int err = 0; + + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: cmd:%x %p\n", + hw->name, __func__, cmd, arg); + switch (cmd) { + case OPEN_CHANNEL: + rq = arg; + if ((rq->protocol == ISDN_P_TE_S0) || + (rq->protocol == ISDN_P_NT_S0)) + err = open_dchannel(hw, ch, rq); + else + err = open_bchannel(hw, rq); + if (!err) + hw->open++; + break; + case CLOSE_CHANNEL: + hw->open--; + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG + "%s: %s: dev(%d) close from %p (open %d)\n", + hw->name, __func__, hw->dch.dev.id, + __builtin_return_address(0), hw->open); + if (!hw->open) { + hfcsusb_stop_endpoint(hw, HFC_CHAN_D); + if (hw->fifos[HFCUSB_PCM_RX].pipe) + hfcsusb_stop_endpoint(hw, HFC_CHAN_E); + handle_led(hw, LED_POWER_ON); + } + module_put(THIS_MODULE); + break; + case CONTROL_CHANNEL: + err = channel_ctrl(hw, arg); + break; + default: + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: unknown command %x\n", + hw->name, __func__, cmd); + return -EINVAL; + } + return err; +} + +/* + * S0 TE state change event handler + */ +static void +ph_state_te(struct dchannel *dch) +{ + struct hfcsusb *hw = dch->hw; + + if (debug & DEBUG_HW) { + if (dch->state <= HFC_MAX_TE_LAYER1_STATE) + printk(KERN_DEBUG "%s: %s: %s\n", hw->name, __func__, + HFC_TE_LAYER1_STATES[dch->state]); + else + printk(KERN_DEBUG "%s: %s: TE F%d\n", + hw->name, __func__, dch->state); + } + + switch (dch->state) { + case 0: + l1_event(dch->l1, HW_RESET_IND); + break; + case 3: + l1_event(dch->l1, HW_DEACT_IND); + break; + case 5: + case 8: + l1_event(dch->l1, ANYSIGNAL); + break; + case 6: + l1_event(dch->l1, INFO2); + break; + case 7: + l1_event(dch->l1, INFO4_P8); + break; + } + if (dch->state == 7) + handle_led(hw, LED_S0_ON); + else + handle_led(hw, LED_S0_OFF); +} + +/* + * S0 NT state change event handler + */ +static void +ph_state_nt(struct dchannel *dch) +{ + struct hfcsusb *hw = dch->hw; + + if (debug & DEBUG_HW) { + if (dch->state <= HFC_MAX_NT_LAYER1_STATE) + printk(KERN_DEBUG "%s: %s: %s\n", + hw->name, __func__, + HFC_NT_LAYER1_STATES[dch->state]); + + else + printk(KERN_INFO DRIVER_NAME "%s: %s: NT G%d\n", + hw->name, __func__, dch->state); + } + + switch (dch->state) { + case (1): + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); + hw->nt_timer = 0; + hw->timers &= ~NT_ACTIVATION_TIMER; + handle_led(hw, LED_S0_OFF); + break; + + case (2): + if (hw->nt_timer < 0) { + hw->nt_timer = 0; + hw->timers &= ~NT_ACTIVATION_TIMER; + hfcsusb_ph_command(dch->hw, HFC_L1_DEACTIVATE_NT); + } else { + hw->timers |= NT_ACTIVATION_TIMER; + hw->nt_timer = NT_T1_COUNT; + /* allow G2 -> G3 transition */ + write_reg(hw, HFCUSB_STATES, 2 | HFCUSB_NT_G2_G3); + } + break; + case (3): + hw->nt_timer = 0; + hw->timers &= ~NT_ACTIVATION_TIMER; + test_and_set_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, PH_ACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + handle_led(hw, LED_S0_ON); + break; + case (4): + hw->nt_timer = 0; + hw->timers &= ~NT_ACTIVATION_TIMER; + break; + default: + break; + } + hfcsusb_ph_info(hw); +} + +static void +ph_state(struct dchannel *dch) +{ + struct hfcsusb *hw = dch->hw; + + if (hw->protocol == ISDN_P_NT_S0) + ph_state_nt(dch); + else if (hw->protocol == ISDN_P_TE_S0) + ph_state_te(dch); +} + +/* + * disable/enable BChannel for desired protocoll + */ +static int +hfcsusb_setup_bch(struct bchannel *bch, int protocol) +{ + struct hfcsusb *hw = bch->hw; + __u8 conhdlc, sctrl, sctrl_r; + + if (debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: protocol %x-->%x B%d\n", + hw->name, __func__, bch->state, protocol, + bch->nr); + + /* setup val for CON_HDLC */ + conhdlc = 0; + if (protocol > ISDN_P_NONE) + conhdlc = 8; /* enable FIFO */ + + switch (protocol) { + case (-1): /* used for init */ + bch->state = -1; + /* fall trough */ + case (ISDN_P_NONE): + if (bch->state == ISDN_P_NONE) + return 0; /* already in idle state */ + bch->state = ISDN_P_NONE; + clear_bit(FLG_HDLC, &bch->Flags); + clear_bit(FLG_TRANSPARENT, &bch->Flags); + break; + case (ISDN_P_B_RAW): + conhdlc |= 2; + bch->state = protocol; + set_bit(FLG_TRANSPARENT, &bch->Flags); + break; + case (ISDN_P_B_HDLC): + bch->state = protocol; + set_bit(FLG_HDLC, &bch->Flags); + break; + default: + if (debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: prot not known %x\n", + hw->name, __func__, protocol); + return -ENOPROTOOPT; + } + + if (protocol >= ISDN_P_NONE) { + write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 0 : 2); + write_reg(hw, HFCUSB_CON_HDLC, conhdlc); + write_reg(hw, HFCUSB_INC_RES_F, 2); + write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 1 : 3); + write_reg(hw, HFCUSB_CON_HDLC, conhdlc); + write_reg(hw, HFCUSB_INC_RES_F, 2); + + sctrl = 0x40 + ((hw->protocol == ISDN_P_TE_S0) ? 0x00 : 0x04); + sctrl_r = 0x0; + if (test_bit(FLG_ACTIVE, &hw->bch[0].Flags)) { + sctrl |= 1; + sctrl_r |= 1; + } + if (test_bit(FLG_ACTIVE, &hw->bch[1].Flags)) { + sctrl |= 2; + sctrl_r |= 2; + } + write_reg(hw, HFCUSB_SCTRL, sctrl); + write_reg(hw, HFCUSB_SCTRL_R, sctrl_r); + + if (protocol > ISDN_P_NONE) + handle_led(hw, (bch->nr == 1) ? LED_B1_ON : LED_B2_ON); + else + handle_led(hw, (bch->nr == 1) ? LED_B1_OFF : + LED_B2_OFF); + } + hfcsusb_ph_info(hw); + return 0; +} + +static void +hfcsusb_ph_command(struct hfcsusb *hw, u_char command) +{ + if (debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: %x\n", + hw->name, __func__, command); + + switch (command) { + case HFC_L1_ACTIVATE_TE: + /* force sending sending INFO1 */ + write_reg(hw, HFCUSB_STATES, 0x14); + /* start l1 activation */ + write_reg(hw, HFCUSB_STATES, 0x04); + break; + + case HFC_L1_FORCE_DEACTIVATE_TE: + write_reg(hw, HFCUSB_STATES, 0x10); + write_reg(hw, HFCUSB_STATES, 0x03); + break; + + case HFC_L1_ACTIVATE_NT: + if (hw->dch.state == 3) + _queue_data(&hw->dch.dev.D, PH_ACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + else + write_reg(hw, HFCUSB_STATES, HFCUSB_ACTIVATE | + HFCUSB_DO_ACTION | HFCUSB_NT_G2_G3); + break; + + case HFC_L1_DEACTIVATE_NT: + write_reg(hw, HFCUSB_STATES, + HFCUSB_DO_ACTION); + break; + } +} + +/* + * Layer 1 B-channel hardware access + */ +static int +channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) +{ + int ret = 0; + + switch (cq->op) { + case MISDN_CTRL_GETOP: + cq->op = MISDN_CTRL_FILL_EMPTY; + break; + case MISDN_CTRL_FILL_EMPTY: /* fill fifo, if empty */ + test_and_set_bit(FLG_FILLEMPTY, &bch->Flags); + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: FILL_EMPTY request (nr=%d " + "off=%d)\n", __func__, bch->nr, !!cq->p1); + break; + default: + printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op); + ret = -EINVAL; + break; + } + return ret; +} + +/* collect data from incoming interrupt or isochron USB data */ +static void +hfcsusb_rx_frame(struct usb_fifo *fifo, __u8 *data, unsigned int len, + int finish) +{ + struct hfcsusb *hw = fifo->hw; + struct sk_buff *rx_skb = NULL; + int maxlen = 0; + int fifon = fifo->fifonum; + int i; + int hdlc = 0; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s: fifo(%i) len(%i) " + "dch(%p) bch(%p) ech(%p)\n", + hw->name, __func__, fifon, len, + fifo->dch, fifo->bch, fifo->ech); + + if (!len) + return; + + if ((!!fifo->dch + !!fifo->bch + !!fifo->ech) != 1) { + printk(KERN_DEBUG "%s: %s: undefined channel\n", + hw->name, __func__); + return; + } + + spin_lock(&hw->lock); + if (fifo->dch) { + rx_skb = fifo->dch->rx_skb; + maxlen = fifo->dch->maxlen; + hdlc = 1; + } + if (fifo->bch) { + rx_skb = fifo->bch->rx_skb; + maxlen = fifo->bch->maxlen; + hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags); + } + if (fifo->ech) { + rx_skb = fifo->ech->rx_skb; + maxlen = fifo->ech->maxlen; + hdlc = 1; + } + + if (!rx_skb) { + rx_skb = mI_alloc_skb(maxlen, GFP_ATOMIC); + if (rx_skb) { + if (fifo->dch) + fifo->dch->rx_skb = rx_skb; + if (fifo->bch) + fifo->bch->rx_skb = rx_skb; + if (fifo->ech) + fifo->ech->rx_skb = rx_skb; + skb_trim(rx_skb, 0); + } else { + printk(KERN_DEBUG "%s: %s: No mem for rx_skb\n", + hw->name, __func__); + spin_unlock(&hw->lock); + return; + } + } + + if (fifo->dch || fifo->ech) { + /* D/E-Channel SKB range check */ + if ((rx_skb->len + len) >= MAX_DFRAME_LEN_L1) { + printk(KERN_DEBUG "%s: %s: sbk mem exceeded " + "for fifo(%d) HFCUSB_D_RX\n", + hw->name, __func__, fifon); + skb_trim(rx_skb, 0); + spin_unlock(&hw->lock); + return; + } + } else if (fifo->bch) { + /* B-Channel SKB range check */ + if ((rx_skb->len + len) >= (MAX_BCH_SIZE + 3)) { + printk(KERN_DEBUG "%s: %s: sbk mem exceeded " + "for fifo(%d) HFCUSB_B_RX\n", + hw->name, __func__, fifon); + skb_trim(rx_skb, 0); + spin_unlock(&hw->lock); + return; + } + } + + memcpy(skb_put(rx_skb, len), data, len); + + if (hdlc) { + /* we have a complete hdlc packet */ + if (finish) { + if ((rx_skb->len > 3) && + (!(rx_skb->data[rx_skb->len - 1]))) { + if (debug & DBG_HFC_FIFO_VERBOSE) { + printk(KERN_DEBUG "%s: %s: fifon(%i)" + " new RX len(%i): ", + hw->name, __func__, fifon, + rx_skb->len); + i = 0; + while (i < rx_skb->len) + printk("%02x ", + rx_skb->data[i++]); + printk("\n"); + } + + /* remove CRC & status */ + skb_trim(rx_skb, rx_skb->len - 3); + + if (fifo->dch) + recv_Dchannel(fifo->dch); + if (fifo->bch) + recv_Bchannel(fifo->bch); + if (fifo->ech) + recv_Echannel(fifo->ech, + &hw->dch); + } else { + if (debug & DBG_HFC_FIFO_VERBOSE) { + printk(KERN_DEBUG + "%s: CRC or minlen ERROR fifon(%i) " + "RX len(%i): ", + hw->name, fifon, rx_skb->len); + i = 0; + while (i < rx_skb->len) + printk("%02x ", + rx_skb->data[i++]); + printk("\n"); + } + skb_trim(rx_skb, 0); + } + } + } else { + /* deliver transparent data to layer2 */ + if (rx_skb->len >= poll) + recv_Bchannel(fifo->bch); + } + spin_unlock(&hw->lock); +} + +void +fill_isoc_urb(struct urb *urb, struct usb_device *dev, unsigned int pipe, + void *buf, int num_packets, int packet_size, int interval, + usb_complete_t complete, void *context) +{ + int k; + + usb_fill_bulk_urb(urb, dev, pipe, buf, packet_size * num_packets, + complete, context); + + urb->number_of_packets = num_packets; + urb->transfer_flags = URB_ISO_ASAP; + urb->actual_length = 0; + urb->interval = interval; + + for (k = 0; k < num_packets; k++) { + urb->iso_frame_desc[k].offset = packet_size * k; + urb->iso_frame_desc[k].length = packet_size; + urb->iso_frame_desc[k].actual_length = 0; + } +} + +/* receive completion routine for all ISO tx fifos */ +static void +rx_iso_complete(struct urb *urb) +{ + struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context; + struct usb_fifo *fifo = context_iso_urb->owner_fifo; + struct hfcsusb *hw = fifo->hw; + int k, len, errcode, offset, num_isoc_packets, fifon, maxlen, + status, iso_status, i; + __u8 *buf; + static __u8 eof[8]; + __u8 s0_state; + + fifon = fifo->fifonum; + status = urb->status; + + spin_lock(&hw->lock); + if (fifo->stop_gracefull) { + fifo->stop_gracefull = 0; + fifo->active = 0; + spin_unlock(&hw->lock); + return; + } + spin_unlock(&hw->lock); + + /* + * ISO transfer only partially completed, + * look at individual frame status for details + */ + if (status == -EXDEV) { + if (debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: with -EXDEV " + "urb->status %d, fifonum %d\n", + hw->name, __func__, status, fifon); + + /* clear status, so go on with ISO transfers */ + status = 0; + } + + s0_state = 0; + if (fifo->active && !status) { + num_isoc_packets = iso_packets[fifon]; + maxlen = fifo->usb_packet_maxlen; + + for (k = 0; k < num_isoc_packets; ++k) { + len = urb->iso_frame_desc[k].actual_length; + offset = urb->iso_frame_desc[k].offset; + buf = context_iso_urb->buffer + offset; + iso_status = urb->iso_frame_desc[k].status; + + if (iso_status && (debug & DBG_HFC_FIFO_VERBOSE)) { + printk(KERN_DEBUG "%s: %s: " + "ISO packet %i, status: %i\n", + hw->name, __func__, k, iso_status); + } + + /* USB data log for every D ISO in */ + if ((fifon == HFCUSB_D_RX) && + (debug & DBG_HFC_USB_VERBOSE)) { + printk(KERN_DEBUG + "%s: %s: %d (%d/%d) len(%d) ", + hw->name, __func__, urb->start_frame, + k, num_isoc_packets-1, + len); + for (i = 0; i < len; i++) + printk("%x ", buf[i]); + printk("\n"); + } + + if (!iso_status) { + if (fifo->last_urblen != maxlen) { + /* + * save fifo fill-level threshold bits + * to use them later in TX ISO URB + * completions + */ + hw->threshold_mask = buf[1]; + + if (fifon == HFCUSB_D_RX) + s0_state = (buf[0] >> 4); + + eof[fifon] = buf[0] & 1; + if (len > 2) + hfcsusb_rx_frame(fifo, buf + 2, + len - 2, (len < maxlen) + ? eof[fifon] : 0); + } else + hfcsusb_rx_frame(fifo, buf, len, + (len < maxlen) ? + eof[fifon] : 0); + fifo->last_urblen = len; + } + } + + /* signal S0 layer1 state change */ + if ((s0_state) && (hw->initdone) && + (s0_state != hw->dch.state)) { + hw->dch.state = s0_state; + schedule_event(&hw->dch, FLG_PHCHANGE); + } + + fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe, + context_iso_urb->buffer, num_isoc_packets, + fifo->usb_packet_maxlen, fifo->intervall, + (usb_complete_t)rx_iso_complete, urb->context); + errcode = usb_submit_urb(urb, GFP_ATOMIC); + if (errcode < 0) { + if (debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: error submitting " + "ISO URB: %d\n", + hw->name, __func__, errcode); + } + } else { + if (status && (debug & DBG_HFC_URB_INFO)) + printk(KERN_DEBUG "%s: %s: rx_iso_complete : " + "urb->status %d, fifonum %d\n", + hw->name, __func__, status, fifon); + } +} + +/* receive completion routine for all interrupt rx fifos */ +static void +rx_int_complete(struct urb *urb) +{ + int len, status, i; + __u8 *buf, maxlen, fifon; + struct usb_fifo *fifo = (struct usb_fifo *) urb->context; + struct hfcsusb *hw = fifo->hw; + static __u8 eof[8]; + + spin_lock(&hw->lock); + if (fifo->stop_gracefull) { + fifo->stop_gracefull = 0; + fifo->active = 0; + spin_unlock(&hw->lock); + return; + } + spin_unlock(&hw->lock); + + fifon = fifo->fifonum; + if ((!fifo->active) || (urb->status)) { + if (debug & DBG_HFC_URB_ERROR) + printk(KERN_DEBUG + "%s: %s: RX-Fifo %i is going down (%i)\n", + hw->name, __func__, fifon, urb->status); + + fifo->urb->interval = 0; /* cancel automatic rescheduling */ + return; + } + len = urb->actual_length; + buf = fifo->buffer; + maxlen = fifo->usb_packet_maxlen; + + /* USB data log for every D INT in */ + if ((fifon == HFCUSB_D_RX) && (debug & DBG_HFC_USB_VERBOSE)) { + printk(KERN_DEBUG "%s: %s: D RX INT len(%d) ", + hw->name, __func__, len); + for (i = 0; i < len; i++) + printk("%02x ", buf[i]); + printk("\n"); + } + + if (fifo->last_urblen != fifo->usb_packet_maxlen) { + /* the threshold mask is in the 2nd status byte */ + hw->threshold_mask = buf[1]; + + /* signal S0 layer1 state change */ + if (hw->initdone && ((buf[0] >> 4) != hw->dch.state)) { + hw->dch.state = (buf[0] >> 4); + schedule_event(&hw->dch, FLG_PHCHANGE); + } + + eof[fifon] = buf[0] & 1; + /* if we have more than the 2 status bytes -> collect data */ + if (len > 2) + hfcsusb_rx_frame(fifo, buf + 2, + urb->actual_length - 2, + (len < maxlen) ? eof[fifon] : 0); + } else { + hfcsusb_rx_frame(fifo, buf, urb->actual_length, + (len < maxlen) ? eof[fifon] : 0); + } + fifo->last_urblen = urb->actual_length; + + status = usb_submit_urb(urb, GFP_ATOMIC); + if (status) { + if (debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: error resubmitting USB\n", + hw->name, __func__); + } +} + +/* transmit completion routine for all ISO tx fifos */ +static void +tx_iso_complete(struct urb *urb) +{ + struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context; + struct usb_fifo *fifo = context_iso_urb->owner_fifo; + struct hfcsusb *hw = fifo->hw; + struct sk_buff *tx_skb; + int k, tx_offset, num_isoc_packets, sink, remain, current_len, + errcode, hdlc, i; + int *tx_idx; + int frame_complete, fifon, status; + __u8 threshbit; + + spin_lock(&hw->lock); + if (fifo->stop_gracefull) { + fifo->stop_gracefull = 0; + fifo->active = 0; + spin_unlock(&hw->lock); + return; + } + + if (fifo->dch) { + tx_skb = fifo->dch->tx_skb; + tx_idx = &fifo->dch->tx_idx; + hdlc = 1; + } else if (fifo->bch) { + tx_skb = fifo->bch->tx_skb; + tx_idx = &fifo->bch->tx_idx; + hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags); + } else { + printk(KERN_DEBUG "%s: %s: neither BCH nor DCH\n", + hw->name, __func__); + spin_unlock(&hw->lock); + return; + } + + fifon = fifo->fifonum; + status = urb->status; + + tx_offset = 0; + + /* + * ISO transfer only partially completed, + * look at individual frame status for details + */ + if (status == -EXDEV) { + if (debug & DBG_HFC_URB_ERROR) + printk(KERN_DEBUG "%s: %s: " + "-EXDEV (%i) fifon (%d)\n", + hw->name, __func__, status, fifon); + + /* clear status, so go on with ISO transfers */ + status = 0; + } + + if (fifo->active && !status) { + /* is FifoFull-threshold set for our channel? */ + threshbit = (hw->threshold_mask & (1 << fifon)); + num_isoc_packets = iso_packets[fifon]; + + /* predict dataflow to avoid fifo overflow */ + if (fifon >= HFCUSB_D_TX) + sink = (threshbit) ? SINK_DMIN : SINK_DMAX; + else + sink = (threshbit) ? SINK_MIN : SINK_MAX; + fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe, + context_iso_urb->buffer, num_isoc_packets, + fifo->usb_packet_maxlen, fifo->intervall, + (usb_complete_t)tx_iso_complete, urb->context); + memset(context_iso_urb->buffer, 0, + sizeof(context_iso_urb->buffer)); + frame_complete = 0; + + for (k = 0; k < num_isoc_packets; ++k) { + /* analyze tx success of previous ISO packets */ + if (debug & DBG_HFC_URB_ERROR) { + errcode = urb->iso_frame_desc[k].status; + if (errcode) { + printk(KERN_DEBUG "%s: %s: " + "ISO packet %i, status: %i\n", + hw->name, __func__, k, errcode); + } + } + + /* Generate next ISO Packets */ + if (tx_skb) + remain = tx_skb->len - *tx_idx; + else + remain = 0; + + if (remain > 0) { + fifo->bit_line -= sink; + current_len = (0 - fifo->bit_line) / 8; + if (current_len > 14) + current_len = 14; + if (current_len < 0) + current_len = 0; + if (remain < current_len) + current_len = remain; + + /* how much bit do we put on the line? */ + fifo->bit_line += current_len * 8; + + context_iso_urb->buffer[tx_offset] = 0; + if (current_len == remain) { + if (hdlc) { + /* signal frame completion */ + context_iso_urb-> + buffer[tx_offset] = 1; + /* add 2 byte flags and 16bit + * CRC at end of ISDN frame */ + fifo->bit_line += 32; + } + frame_complete = 1; + } + + /* copy tx data to iso-urb buffer */ + memcpy(context_iso_urb->buffer + tx_offset + 1, + (tx_skb->data + *tx_idx), current_len); + *tx_idx += current_len; + + urb->iso_frame_desc[k].offset = tx_offset; + urb->iso_frame_desc[k].length = current_len + 1; + + /* USB data log for every D ISO out */ + if ((fifon == HFCUSB_D_RX) && + (debug & DBG_HFC_USB_VERBOSE)) { + printk(KERN_DEBUG + "%s: %s (%d/%d) offs(%d) len(%d) ", + hw->name, __func__, + k, num_isoc_packets-1, + urb->iso_frame_desc[k].offset, + urb->iso_frame_desc[k].length); + + for (i = urb->iso_frame_desc[k].offset; + i < (urb->iso_frame_desc[k].offset + + urb->iso_frame_desc[k].length); + i++) + printk("%x ", + context_iso_urb->buffer[i]); + + printk(" skb->len(%i) tx-idx(%d)\n", + tx_skb->len, *tx_idx); + } + + tx_offset += (current_len + 1); + } else { + urb->iso_frame_desc[k].offset = tx_offset++; + urb->iso_frame_desc[k].length = 1; + /* we lower data margin every msec */ + fifo->bit_line -= sink; + if (fifo->bit_line < BITLINE_INF) + fifo->bit_line = BITLINE_INF; + } + + if (frame_complete) { + frame_complete = 0; + + if (debug & DBG_HFC_FIFO_VERBOSE) { + printk(KERN_DEBUG "%s: %s: " + "fifon(%i) new TX len(%i): ", + hw->name, __func__, + fifon, tx_skb->len); + i = 0; + while (i < tx_skb->len) + printk("%02x ", + tx_skb->data[i++]); + printk("\n"); + } + + dev_kfree_skb(tx_skb); + tx_skb = NULL; + if (fifo->dch && get_next_dframe(fifo->dch)) + tx_skb = fifo->dch->tx_skb; + else if (fifo->bch && + get_next_bframe(fifo->bch)) { + if (test_bit(FLG_TRANSPARENT, + &fifo->bch->Flags)) + confirm_Bsend(fifo->bch); + tx_skb = fifo->bch->tx_skb; + } + } + } + errcode = usb_submit_urb(urb, GFP_ATOMIC); + if (errcode < 0) { + if (debug & DEBUG_HW) + printk(KERN_DEBUG + "%s: %s: error submitting ISO URB: %d \n", + hw->name, __func__, errcode); + } + + /* + * abuse DChannel tx iso completion to trigger NT mode state + * changes tx_iso_complete is assumed to be called every + * fifo->intervall (ms) + */ + if ((fifon == HFCUSB_D_TX) && (hw->protocol == ISDN_P_NT_S0) + && (hw->timers & NT_ACTIVATION_TIMER)) { + if ((--hw->nt_timer) < 0) + schedule_event(&hw->dch, FLG_PHCHANGE); + } + + } else { + if (status && (debug & DBG_HFC_URB_ERROR)) + printk(KERN_DEBUG "%s: %s: urb->status %s (%i)" + "fifonum=%d\n", + hw->name, __func__, + symbolic(urb_errlist, status), status, fifon); + } + spin_unlock(&hw->lock); +} + +/* + * allocs urbs and start isoc transfer with two pending urbs to avoid + * gaps in the transfer chain + */ +static int +start_isoc_chain(struct usb_fifo *fifo, int num_packets_per_urb, + usb_complete_t complete, int packet_size) +{ + struct hfcsusb *hw = fifo->hw; + int i, k, errcode; + + if (debug) + printk(KERN_DEBUG "%s: %s: fifo %i\n", + hw->name, __func__, fifo->fifonum); + + /* allocate Memory for Iso out Urbs */ + for (i = 0; i < 2; i++) { + if (!(fifo->iso[i].urb)) { + fifo->iso[i].urb = + usb_alloc_urb(num_packets_per_urb, GFP_KERNEL); + if (!(fifo->iso[i].urb)) { + printk(KERN_DEBUG + "%s: %s: alloc urb for fifo %i failed", + hw->name, __func__, fifo->fifonum); + } + fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo; + fifo->iso[i].indx = i; + + /* Init the first iso */ + if (ISO_BUFFER_SIZE >= + (fifo->usb_packet_maxlen * + num_packets_per_urb)) { + fill_isoc_urb(fifo->iso[i].urb, + fifo->hw->dev, fifo->pipe, + fifo->iso[i].buffer, + num_packets_per_urb, + fifo->usb_packet_maxlen, + fifo->intervall, complete, + &fifo->iso[i]); + memset(fifo->iso[i].buffer, 0, + sizeof(fifo->iso[i].buffer)); + + for (k = 0; k < num_packets_per_urb; k++) { + fifo->iso[i].urb-> + iso_frame_desc[k].offset = + k * packet_size; + fifo->iso[i].urb-> + iso_frame_desc[k].length = + packet_size; + } + } else { + printk(KERN_DEBUG + "%s: %s: ISO Buffer size to small!\n", + hw->name, __func__); + } + } + fifo->bit_line = BITLINE_INF; + + errcode = usb_submit_urb(fifo->iso[i].urb, GFP_KERNEL); + fifo->active = (errcode >= 0) ? 1 : 0; + fifo->stop_gracefull = 0; + if (errcode < 0) { + printk(KERN_DEBUG "%s: %s: %s URB nr:%d\n", + hw->name, __func__, + symbolic(urb_errlist, errcode), i); + } + } + return fifo->active; +} + +static void +stop_iso_gracefull(struct usb_fifo *fifo) +{ + struct hfcsusb *hw = fifo->hw; + int i, timeout; + u_long flags; + + for (i = 0; i < 2; i++) { + spin_lock_irqsave(&hw->lock, flags); + if (debug) + printk(KERN_DEBUG "%s: %s for fifo %i.%i\n", + hw->name, __func__, fifo->fifonum, i); + fifo->stop_gracefull = 1; + spin_unlock_irqrestore(&hw->lock, flags); + } + + for (i = 0; i < 2; i++) { + timeout = 3; + while (fifo->stop_gracefull && timeout--) + schedule_timeout_interruptible((HZ/1000)*16); + if (debug && fifo->stop_gracefull) + printk(KERN_DEBUG "%s: ERROR %s for fifo %i.%i\n", + hw->name, __func__, fifo->fifonum, i); + } +} + +static void +stop_int_gracefull(struct usb_fifo *fifo) +{ + struct hfcsusb *hw = fifo->hw; + int timeout; + u_long flags; + + spin_lock_irqsave(&hw->lock, flags); + if (debug) + printk(KERN_DEBUG "%s: %s for fifo %i\n", + hw->name, __func__, fifo->fifonum); + fifo->stop_gracefull = 1; + spin_unlock_irqrestore(&hw->lock, flags); + + timeout = 3; + while (fifo->stop_gracefull && timeout--) + schedule_timeout_interruptible((HZ/1000)*3); + if (debug && fifo->stop_gracefull) + printk(KERN_DEBUG "%s: ERROR %s for fifo %i\n", + hw->name, __func__, fifo->fifonum); +} + +/* start the interrupt transfer for the given fifo */ +static void +start_int_fifo(struct usb_fifo *fifo) +{ + struct hfcsusb *hw = fifo->hw; + int errcode; + + if (debug) + printk(KERN_DEBUG "%s: %s: INT IN fifo:%d\n", + hw->name, __func__, fifo->fifonum); + + if (!fifo->urb) { + fifo->urb = usb_alloc_urb(0, GFP_KERNEL); + if (!fifo->urb) + return; + } + usb_fill_int_urb(fifo->urb, fifo->hw->dev, fifo->pipe, + fifo->buffer, fifo->usb_packet_maxlen, + (usb_complete_t)rx_int_complete, fifo, fifo->intervall); + fifo->active = 1; + fifo->stop_gracefull = 0; + errcode = usb_submit_urb(fifo->urb, GFP_KERNEL); + if (errcode) { + printk(KERN_DEBUG "%s: %s: submit URB: status:%i\n", + hw->name, __func__, errcode); + fifo->active = 0; + } +} + +static void +setPortMode(struct hfcsusb *hw) +{ + if (debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s %s\n", hw->name, __func__, + (hw->protocol == ISDN_P_TE_S0) ? "TE" : "NT"); + + if (hw->protocol == ISDN_P_TE_S0) { + write_reg(hw, HFCUSB_SCTRL, 0x40); + write_reg(hw, HFCUSB_SCTRL_E, 0x00); + write_reg(hw, HFCUSB_CLKDEL, CLKDEL_TE); + write_reg(hw, HFCUSB_STATES, 3 | 0x10); + write_reg(hw, HFCUSB_STATES, 3); + } else { + write_reg(hw, HFCUSB_SCTRL, 0x44); + write_reg(hw, HFCUSB_SCTRL_E, 0x09); + write_reg(hw, HFCUSB_CLKDEL, CLKDEL_NT); + write_reg(hw, HFCUSB_STATES, 1 | 0x10); + write_reg(hw, HFCUSB_STATES, 1); + } +} + +static void +reset_hfcsusb(struct hfcsusb *hw) +{ + struct usb_fifo *fifo; + int i; + + if (debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); + + /* do Chip reset */ + write_reg(hw, HFCUSB_CIRM, 8); + + /* aux = output, reset off */ + write_reg(hw, HFCUSB_CIRM, 0x10); + + /* set USB_SIZE to match the wMaxPacketSize for INT or BULK transfers */ + write_reg(hw, HFCUSB_USB_SIZE, (hw->packet_size / 8) | + ((hw->packet_size / 8) << 4)); + + /* set USB_SIZE_I to match the the wMaxPacketSize for ISO transfers */ + write_reg(hw, HFCUSB_USB_SIZE_I, hw->iso_packet_size); + + /* enable PCM/GCI master mode */ + write_reg(hw, HFCUSB_MST_MODE1, 0); /* set default values */ + write_reg(hw, HFCUSB_MST_MODE0, 1); /* enable master mode */ + + /* init the fifos */ + write_reg(hw, HFCUSB_F_THRES, + (HFCUSB_TX_THRESHOLD / 8) | ((HFCUSB_RX_THRESHOLD / 8) << 4)); + + fifo = hw->fifos; + for (i = 0; i < HFCUSB_NUM_FIFOS; i++) { + write_reg(hw, HFCUSB_FIFO, i); /* select the desired fifo */ + fifo[i].max_size = + (i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN; + fifo[i].last_urblen = 0; + + /* set 2 bit for D- & E-channel */ + write_reg(hw, HFCUSB_HDLC_PAR, ((i <= HFCUSB_B2_RX) ? 0 : 2)); + + /* enable all fifos */ + if (i == HFCUSB_D_TX) + write_reg(hw, HFCUSB_CON_HDLC, + (hw->protocol == ISDN_P_NT_S0) ? 0x08 : 0x09); + else + write_reg(hw, HFCUSB_CON_HDLC, 0x08); + write_reg(hw, HFCUSB_INC_RES_F, 2); /* reset the fifo */ + } + + write_reg(hw, HFCUSB_SCTRL_R, 0); /* disable both B receivers */ + handle_led(hw, LED_POWER_ON); +} + +/* start USB data pipes dependand on device's endpoint configuration */ +static void +hfcsusb_start_endpoint(struct hfcsusb *hw, int channel) +{ + /* quick check if endpoint already running */ + if ((channel == HFC_CHAN_D) && (hw->fifos[HFCUSB_D_RX].active)) + return; + if ((channel == HFC_CHAN_B1) && (hw->fifos[HFCUSB_B1_RX].active)) + return; + if ((channel == HFC_CHAN_B2) && (hw->fifos[HFCUSB_B2_RX].active)) + return; + if ((channel == HFC_CHAN_E) && (hw->fifos[HFCUSB_PCM_RX].active)) + return; + + /* start rx endpoints using USB INT IN method */ + if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO) + start_int_fifo(hw->fifos + channel*2 + 1); + + /* start rx endpoints using USB ISO IN method */ + if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO) { + switch (channel) { + case HFC_CHAN_D: + start_isoc_chain(hw->fifos + HFCUSB_D_RX, + ISOC_PACKETS_D, + (usb_complete_t)rx_iso_complete, + 16); + break; + case HFC_CHAN_E: + start_isoc_chain(hw->fifos + HFCUSB_PCM_RX, + ISOC_PACKETS_D, + (usb_complete_t)rx_iso_complete, + 16); + break; + case HFC_CHAN_B1: + start_isoc_chain(hw->fifos + HFCUSB_B1_RX, + ISOC_PACKETS_B, + (usb_complete_t)rx_iso_complete, + 16); + break; + case HFC_CHAN_B2: + start_isoc_chain(hw->fifos + HFCUSB_B2_RX, + ISOC_PACKETS_B, + (usb_complete_t)rx_iso_complete, + 16); + break; + } + } + + /* start tx endpoints using USB ISO OUT method */ + switch (channel) { + case HFC_CHAN_D: + start_isoc_chain(hw->fifos + HFCUSB_D_TX, + ISOC_PACKETS_B, + (usb_complete_t)tx_iso_complete, 1); + break; + case HFC_CHAN_B1: + start_isoc_chain(hw->fifos + HFCUSB_B1_TX, + ISOC_PACKETS_D, + (usb_complete_t)tx_iso_complete, 1); + break; + case HFC_CHAN_B2: + start_isoc_chain(hw->fifos + HFCUSB_B2_TX, + ISOC_PACKETS_B, + (usb_complete_t)tx_iso_complete, 1); + break; + } +} + +/* stop USB data pipes dependand on device's endpoint configuration */ +static void +hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel) +{ + /* quick check if endpoint currently running */ + if ((channel == HFC_CHAN_D) && (!hw->fifos[HFCUSB_D_RX].active)) + return; + if ((channel == HFC_CHAN_B1) && (!hw->fifos[HFCUSB_B1_RX].active)) + return; + if ((channel == HFC_CHAN_B2) && (!hw->fifos[HFCUSB_B2_RX].active)) + return; + if ((channel == HFC_CHAN_E) && (!hw->fifos[HFCUSB_PCM_RX].active)) + return; + + /* rx endpoints using USB INT IN method */ + if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO) + stop_int_gracefull(hw->fifos + channel*2 + 1); + + /* rx endpoints using USB ISO IN method */ + if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO) + stop_iso_gracefull(hw->fifos + channel*2 + 1); + + /* tx endpoints using USB ISO OUT method */ + if (channel != HFC_CHAN_E) + stop_iso_gracefull(hw->fifos + channel*2); +} + + +/* Hardware Initialization */ +int +setup_hfcsusb(struct hfcsusb *hw) +{ + int err; + u_char b; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); + + /* check the chip id */ + if (read_reg_atomic(hw, HFCUSB_CHIP_ID, &b) != 1) { + printk(KERN_DEBUG "%s: %s: cannot read chip id\n", + hw->name, __func__); + return 1; + } + if (b != HFCUSB_CHIPID) { + printk(KERN_DEBUG "%s: %s: Invalid chip id 0x%02x\n", + hw->name, __func__, b); + return 1; + } + + /* first set the needed config, interface and alternate */ + err = usb_set_interface(hw->dev, hw->if_used, hw->alt_used); + + hw->led_state = 0; + + /* init the background machinery for control requests */ + hw->ctrl_read.bRequestType = 0xc0; + hw->ctrl_read.bRequest = 1; + hw->ctrl_read.wLength = cpu_to_le16(1); + hw->ctrl_write.bRequestType = 0x40; + hw->ctrl_write.bRequest = 0; + hw->ctrl_write.wLength = 0; + usb_fill_control_urb(hw->ctrl_urb, hw->dev, hw->ctrl_out_pipe, + (u_char *)&hw->ctrl_write, NULL, 0, + (usb_complete_t)ctrl_complete, hw); + + reset_hfcsusb(hw); + return 0; +} + +static void +release_hw(struct hfcsusb *hw) +{ + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); + + /* + * stop all endpoints gracefully + * TODO: mISDN_core should generate CLOSE_CHANNEL + * signals after calling mISDN_unregister_device() + */ + hfcsusb_stop_endpoint(hw, HFC_CHAN_D); + hfcsusb_stop_endpoint(hw, HFC_CHAN_B1); + hfcsusb_stop_endpoint(hw, HFC_CHAN_B2); + if (hw->fifos[HFCUSB_PCM_RX].pipe) + hfcsusb_stop_endpoint(hw, HFC_CHAN_E); + if (hw->protocol == ISDN_P_TE_S0) + l1_event(hw->dch.l1, CLOSE_CHANNEL); + + mISDN_unregister_device(&hw->dch.dev); + mISDN_freebchannel(&hw->bch[1]); + mISDN_freebchannel(&hw->bch[0]); + mISDN_freedchannel(&hw->dch); + + if (hw->ctrl_urb) { + usb_kill_urb(hw->ctrl_urb); + usb_free_urb(hw->ctrl_urb); + hw->ctrl_urb = NULL; + } + + if (hw->intf) + usb_set_intfdata(hw->intf, NULL); + list_del(&hw->list); + kfree(hw); + hw = NULL; +} + +static void +deactivate_bchannel(struct bchannel *bch) +{ + struct hfcsusb *hw = bch->hw; + u_long flags; + + if (bch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: %s: bch->nr(%i)\n", + hw->name, __func__, bch->nr); + + spin_lock_irqsave(&hw->lock, flags); + if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) { + dev_kfree_skb(bch->next_skb); + bch->next_skb = NULL; + } + if (bch->tx_skb) { + dev_kfree_skb(bch->tx_skb); + bch->tx_skb = NULL; + } + bch->tx_idx = 0; + if (bch->rx_skb) { + dev_kfree_skb(bch->rx_skb); + bch->rx_skb = NULL; + } + clear_bit(FLG_ACTIVE, &bch->Flags); + clear_bit(FLG_TX_BUSY, &bch->Flags); + spin_unlock_irqrestore(&hw->lock, flags); + hfcsusb_setup_bch(bch, ISDN_P_NONE); + hfcsusb_stop_endpoint(hw, bch->nr); +} + +/* + * Layer 1 B-channel hardware access + */ +static int +hfc_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct bchannel *bch = container_of(ch, struct bchannel, ch); + int ret = -EINVAL; + + if (bch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: cmd:%x %p\n", __func__, cmd, arg); + + switch (cmd) { + case HW_TESTRX_RAW: + case HW_TESTRX_HDLC: + case HW_TESTRX_OFF: + ret = -EINVAL; + break; + + case CLOSE_CHANNEL: + test_and_clear_bit(FLG_OPEN, &bch->Flags); + if (test_bit(FLG_ACTIVE, &bch->Flags)) + deactivate_bchannel(bch); + ch->protocol = ISDN_P_NONE; + ch->peer = NULL; + module_put(THIS_MODULE); + ret = 0; + break; + case CONTROL_CHANNEL: + ret = channel_bctrl(bch, arg); + break; + default: + printk(KERN_WARNING "%s: unknown prim(%x)\n", + __func__, cmd); + } + return ret; +} + +static int +setup_instance(struct hfcsusb *hw, struct device *parent) +{ + u_long flags; + int err, i; + + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); + + spin_lock_init(&hw->ctrl_lock); + spin_lock_init(&hw->lock); + + mISDN_initdchannel(&hw->dch, MAX_DFRAME_LEN_L1, ph_state); + hw->dch.debug = debug & 0xFFFF; + hw->dch.hw = hw; + hw->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0); + hw->dch.dev.D.send = hfcusb_l2l1D; + hw->dch.dev.D.ctrl = hfc_dctrl; + + /* enable E-Channel logging */ + if (hw->fifos[HFCUSB_PCM_RX].pipe) + mISDN_initdchannel(&hw->ech, MAX_DFRAME_LEN_L1, NULL); + + hw->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | + (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); + hw->dch.dev.nrbchan = 2; + for (i = 0; i < 2; i++) { + hw->bch[i].nr = i + 1; + set_channelmap(i + 1, hw->dch.dev.channelmap); + hw->bch[i].debug = debug; + mISDN_initbchannel(&hw->bch[i], MAX_DATA_MEM); + hw->bch[i].hw = hw; + hw->bch[i].ch.send = hfcusb_l2l1B; + hw->bch[i].ch.ctrl = hfc_bctrl; + hw->bch[i].ch.nr = i + 1; + list_add(&hw->bch[i].ch.list, &hw->dch.dev.bchannels); + } + + hw->fifos[HFCUSB_B1_TX].bch = &hw->bch[0]; + hw->fifos[HFCUSB_B1_RX].bch = &hw->bch[0]; + hw->fifos[HFCUSB_B2_TX].bch = &hw->bch[1]; + hw->fifos[HFCUSB_B2_RX].bch = &hw->bch[1]; + hw->fifos[HFCUSB_D_TX].dch = &hw->dch; + hw->fifos[HFCUSB_D_RX].dch = &hw->dch; + hw->fifos[HFCUSB_PCM_RX].ech = &hw->ech; + hw->fifos[HFCUSB_PCM_TX].ech = &hw->ech; + + err = setup_hfcsusb(hw); + if (err) + goto out; + + snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s.%d", DRIVER_NAME, + hfcsusb_cnt + 1); + printk(KERN_INFO "%s: registered as '%s'\n", + DRIVER_NAME, hw->name); + + err = mISDN_register_device(&hw->dch.dev, parent, hw->name); + if (err) + goto out; + + hfcsusb_cnt++; + write_lock_irqsave(&HFClock, flags); + list_add_tail(&hw->list, &HFClist); + write_unlock_irqrestore(&HFClock, flags); + return 0; + +out: + mISDN_freebchannel(&hw->bch[1]); + mISDN_freebchannel(&hw->bch[0]); + mISDN_freedchannel(&hw->dch); + kfree(hw); + return err; +} + +static int +hfcsusb_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct hfcsusb *hw; + struct usb_device *dev = interface_to_usbdev(intf); + struct usb_host_interface *iface = intf->cur_altsetting; + struct usb_host_interface *iface_used = NULL; + struct usb_host_endpoint *ep; + struct hfcsusb_vdata *driver_info; + int ifnum = iface->desc.bInterfaceNumber, i, idx, alt_idx, + probe_alt_setting, vend_idx, cfg_used, *vcf, attr, cfg_found, + ep_addr, cmptbl[16], small_match, iso_packet_size, packet_size, + alt_used = 0; + + vend_idx = 0xffff; + for (i = 0; hfcsusb_idtab[i].idVendor; i++) { + if ((le16_to_cpu(dev->descriptor.idVendor) + == hfcsusb_idtab[i].idVendor) && + (le16_to_cpu(dev->descriptor.idProduct) + == hfcsusb_idtab[i].idProduct)) { + vend_idx = i; + continue; + } + } + + printk(KERN_DEBUG + "%s: interface(%d) actalt(%d) minor(%d) vend_idx(%d)\n", + __func__, ifnum, iface->desc.bAlternateSetting, + intf->minor, vend_idx); + + if (vend_idx == 0xffff) { + printk(KERN_WARNING + "%s: no valid vendor found in USB descriptor\n", + __func__); + return -EIO; + } + /* if vendor and product ID is OK, start probing alternate settings */ + alt_idx = 0; + small_match = -1; + + /* default settings */ + iso_packet_size = 16; + packet_size = 64; + + while (alt_idx < intf->num_altsetting) { + iface = intf->altsetting + alt_idx; + probe_alt_setting = iface->desc.bAlternateSetting; + cfg_used = 0; + + while (validconf[cfg_used][0]) { + cfg_found = 1; + vcf = validconf[cfg_used]; + ep = iface->endpoint; + memcpy(cmptbl, vcf, 16 * sizeof(int)); + + /* check for all endpoints in this alternate setting */ + for (i = 0; i < iface->desc.bNumEndpoints; i++) { + ep_addr = ep->desc.bEndpointAddress; + + /* get endpoint base */ + idx = ((ep_addr & 0x7f) - 1) * 2; + if (ep_addr & 0x80) + idx++; + attr = ep->desc.bmAttributes; + + if (cmptbl[idx] != EP_NOP) { + if (cmptbl[idx] == EP_NUL) + cfg_found = 0; + if (attr == USB_ENDPOINT_XFER_INT + && cmptbl[idx] == EP_INT) + cmptbl[idx] = EP_NUL; + if (attr == USB_ENDPOINT_XFER_BULK + && cmptbl[idx] == EP_BLK) + cmptbl[idx] = EP_NUL; + if (attr == USB_ENDPOINT_XFER_ISOC + && cmptbl[idx] == EP_ISO) + cmptbl[idx] = EP_NUL; + + if (attr == USB_ENDPOINT_XFER_INT && + ep->desc.bInterval < vcf[17]) { + cfg_found = 0; + } + } + ep++; + } + + for (i = 0; i < 16; i++) + if (cmptbl[i] != EP_NOP && cmptbl[i] != EP_NUL) + cfg_found = 0; + + if (cfg_found) { + if (small_match < cfg_used) { + small_match = cfg_used; + alt_used = probe_alt_setting; + iface_used = iface; + } + } + cfg_used++; + } + alt_idx++; + } /* (alt_idx < intf->num_altsetting) */ + + /* not found a valid USB Ta Endpoint config */ + if (small_match == -1) + return -EIO; + + iface = iface_used; + hw = kzalloc(sizeof(struct hfcsusb), GFP_KERNEL); + if (!hw) + return -ENOMEM; /* got no mem */ + snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s", DRIVER_NAME); + + ep = iface->endpoint; + vcf = validconf[small_match]; + + for (i = 0; i < iface->desc.bNumEndpoints; i++) { + struct usb_fifo *f; + + ep_addr = ep->desc.bEndpointAddress; + /* get endpoint base */ + idx = ((ep_addr & 0x7f) - 1) * 2; + if (ep_addr & 0x80) + idx++; + f = &hw->fifos[idx & 7]; + + /* init Endpoints */ + if (vcf[idx] == EP_NOP || vcf[idx] == EP_NUL) { + ep++; + continue; + } + switch (ep->desc.bmAttributes) { + case USB_ENDPOINT_XFER_INT: + f->pipe = usb_rcvintpipe(dev, + ep->desc.bEndpointAddress); + f->usb_transfer_mode = USB_INT; + packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); + break; + case USB_ENDPOINT_XFER_BULK: + if (ep_addr & 0x80) + f->pipe = usb_rcvbulkpipe(dev, + ep->desc.bEndpointAddress); + else + f->pipe = usb_sndbulkpipe(dev, + ep->desc.bEndpointAddress); + f->usb_transfer_mode = USB_BULK; + packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); + break; + case USB_ENDPOINT_XFER_ISOC: + if (ep_addr & 0x80) + f->pipe = usb_rcvisocpipe(dev, + ep->desc.bEndpointAddress); + else + f->pipe = usb_sndisocpipe(dev, + ep->desc.bEndpointAddress); + f->usb_transfer_mode = USB_ISOC; + iso_packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); + break; + default: + f->pipe = 0; + } + + if (f->pipe) { + f->fifonum = idx & 7; + f->hw = hw; + f->usb_packet_maxlen = + le16_to_cpu(ep->desc.wMaxPacketSize); + f->intervall = ep->desc.bInterval; + } + ep++; + } + hw->dev = dev; /* save device */ + hw->if_used = ifnum; /* save used interface */ + hw->alt_used = alt_used; /* and alternate config */ + hw->ctrl_paksize = dev->descriptor.bMaxPacketSize0; /* control size */ + hw->cfg_used = vcf[16]; /* store used config */ + hw->vend_idx = vend_idx; /* store found vendor */ + hw->packet_size = packet_size; + hw->iso_packet_size = iso_packet_size; + + /* create the control pipes needed for register access */ + hw->ctrl_in_pipe = usb_rcvctrlpipe(hw->dev, 0); + hw->ctrl_out_pipe = usb_sndctrlpipe(hw->dev, 0); + hw->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); + + driver_info = + (struct hfcsusb_vdata *)hfcsusb_idtab[vend_idx].driver_info; + printk(KERN_DEBUG "%s: %s: detected \"%s\" (%s, if=%d alt=%d)\n", + hw->name, __func__, driver_info->vend_name, + conf_str[small_match], ifnum, alt_used); + + if (setup_instance(hw, dev->dev.parent)) + return -EIO; + + hw->intf = intf; + usb_set_intfdata(hw->intf, hw); + return 0; +} + +/* function called when an active device is removed */ +static void +hfcsusb_disconnect(struct usb_interface *intf) +{ + struct hfcsusb *hw = usb_get_intfdata(intf); + struct hfcsusb *next; + int cnt = 0; + + printk(KERN_INFO "%s: device disconnected\n", hw->name); + + handle_led(hw, LED_POWER_OFF); + release_hw(hw); + + list_for_each_entry_safe(hw, next, &HFClist, list) + cnt++; + if (!cnt) + hfcsusb_cnt = 0; + + usb_set_intfdata(intf, NULL); +} + +static struct usb_driver hfcsusb_drv = { + .name = DRIVER_NAME, + .id_table = hfcsusb_idtab, + .probe = hfcsusb_probe, + .disconnect = hfcsusb_disconnect, +}; + +static int __init +hfcsusb_init(void) +{ + printk(KERN_INFO DRIVER_NAME " driver Rev. %s debug(0x%x) poll(%i)\n", + hfcsusb_rev, debug, poll); + + if (usb_register(&hfcsusb_drv)) { + printk(KERN_INFO DRIVER_NAME + ": Unable to register hfcsusb module at usb stack\n"); + return -ENODEV; + } + + return 0; +} + +static void __exit +hfcsusb_cleanup(void) +{ + if (debug & DBG_HFC_CALL_TRACE) + printk(KERN_INFO DRIVER_NAME ": %s\n", __func__); + + /* unregister Hardware */ + usb_deregister(&hfcsusb_drv); /* release our driver */ +} + +module_init(hfcsusb_init); +module_exit(hfcsusb_cleanup); diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.h b/drivers/isdn/hardware/mISDN/hfcsusb.h new file mode 100644 index 000000000000..098486b8e8d2 --- /dev/null +++ b/drivers/isdn/hardware/mISDN/hfcsusb.h @@ -0,0 +1,418 @@ +/* + * hfcsusb.h, HFC-S USB mISDN driver + */ + +#ifndef __HFCSUSB_H__ +#define __HFCSUSB_H__ + + +#define DRIVER_NAME "HFC-S_USB" + +#define DBG_HFC_CALL_TRACE 0x00010000 +#define DBG_HFC_FIFO_VERBOSE 0x00020000 +#define DBG_HFC_USB_VERBOSE 0x00100000 +#define DBG_HFC_URB_INFO 0x00200000 +#define DBG_HFC_URB_ERROR 0x00400000 + +#define DEFAULT_TRANSP_BURST_SZ 128 + +#define HFC_CTRL_TIMEOUT 20 /* 5ms timeout writing/reading regs */ +#define CLKDEL_TE 0x0f /* CLKDEL in TE mode */ +#define CLKDEL_NT 0x6c /* CLKDEL in NT mode */ + +/* hfcsusb Layer1 commands */ +#define HFC_L1_ACTIVATE_TE 1 +#define HFC_L1_ACTIVATE_NT 2 +#define HFC_L1_DEACTIVATE_NT 3 +#define HFC_L1_FORCE_DEACTIVATE_TE 4 + +/* cmd FLAGS in HFCUSB_STATES register */ +#define HFCUSB_LOAD_STATE 0x10 +#define HFCUSB_ACTIVATE 0x20 +#define HFCUSB_DO_ACTION 0x40 +#define HFCUSB_NT_G2_G3 0x80 + +/* timers */ +#define NT_ACTIVATION_TIMER 0x01 /* enables NT mode activation Timer */ +#define NT_T1_COUNT 10 + +#define MAX_BCH_SIZE 2048 /* allowed B-channel packet size */ + +#define HFCUSB_RX_THRESHOLD 64 /* threshold for fifo report bit rx */ +#define HFCUSB_TX_THRESHOLD 96 /* threshold for fifo report bit tx */ + +#define HFCUSB_CHIP_ID 0x16 /* Chip ID register index */ +#define HFCUSB_CIRM 0x00 /* cirm register index */ +#define HFCUSB_USB_SIZE 0x07 /* int length register */ +#define HFCUSB_USB_SIZE_I 0x06 /* iso length register */ +#define HFCUSB_F_CROSS 0x0b /* bit order register */ +#define HFCUSB_CLKDEL 0x37 /* bit delay register */ +#define HFCUSB_CON_HDLC 0xfa /* channel connect register */ +#define HFCUSB_HDLC_PAR 0xfb +#define HFCUSB_SCTRL 0x31 /* S-bus control register (tx) */ +#define HFCUSB_SCTRL_E 0x32 /* same for E and special funcs */ +#define HFCUSB_SCTRL_R 0x33 /* S-bus control register (rx) */ +#define HFCUSB_F_THRES 0x0c /* threshold register */ +#define HFCUSB_FIFO 0x0f /* fifo select register */ +#define HFCUSB_F_USAGE 0x1a /* fifo usage register */ +#define HFCUSB_MST_MODE0 0x14 +#define HFCUSB_MST_MODE1 0x15 +#define HFCUSB_P_DATA 0x1f +#define HFCUSB_INC_RES_F 0x0e +#define HFCUSB_B1_SSL 0x20 +#define HFCUSB_B2_SSL 0x21 +#define HFCUSB_B1_RSL 0x24 +#define HFCUSB_B2_RSL 0x25 +#define HFCUSB_STATES 0x30 + + +#define HFCUSB_CHIPID 0x40 /* ID value of HFC-S USB */ + +/* fifo registers */ +#define HFCUSB_NUM_FIFOS 8 /* maximum number of fifos */ +#define HFCUSB_B1_TX 0 /* index for B1 transmit bulk/int */ +#define HFCUSB_B1_RX 1 /* index for B1 receive bulk/int */ +#define HFCUSB_B2_TX 2 +#define HFCUSB_B2_RX 3 +#define HFCUSB_D_TX 4 +#define HFCUSB_D_RX 5 +#define HFCUSB_PCM_TX 6 +#define HFCUSB_PCM_RX 7 + + +#define USB_INT 0 +#define USB_BULK 1 +#define USB_ISOC 2 + +#define ISOC_PACKETS_D 8 +#define ISOC_PACKETS_B 8 +#define ISO_BUFFER_SIZE 128 + +/* defines how much ISO packets are handled in one URB */ +static int iso_packets[8] = + { ISOC_PACKETS_B, ISOC_PACKETS_B, ISOC_PACKETS_B, ISOC_PACKETS_B, + ISOC_PACKETS_D, ISOC_PACKETS_D, ISOC_PACKETS_D, ISOC_PACKETS_D +}; + + +/* Fifo flow Control for TX ISO */ +#define SINK_MAX 68 +#define SINK_MIN 48 +#define SINK_DMIN 12 +#define SINK_DMAX 18 +#define BITLINE_INF (-96*8) + +/* HFC-S USB register access by Control-URSs */ +#define write_reg_atomic(a, b, c) \ + usb_control_msg((a)->dev, (a)->ctrl_out_pipe, 0, 0x40, (c), (b), \ + 0, 0, HFC_CTRL_TIMEOUT) +#define read_reg_atomic(a, b, c) \ + usb_control_msg((a)->dev, (a)->ctrl_in_pipe, 1, 0xC0, 0, (b), (c), \ + 1, HFC_CTRL_TIMEOUT) +#define HFC_CTRL_BUFSIZE 64 + +struct ctrl_buf { + __u8 hfcs_reg; /* register number */ + __u8 reg_val; /* value to be written (or read) */ +}; + +/* + * URB error codes + * Used to represent a list of values and their respective symbolic names + */ +struct hfcusb_symbolic_list { + const int num; + const char *name; +}; + +static struct hfcusb_symbolic_list urb_errlist[] = { + {-ENOMEM, "No memory for allocation of internal structures"}, + {-ENOSPC, "The host controller's bandwidth is already consumed"}, + {-ENOENT, "URB was canceled by unlink_urb"}, + {-EXDEV, "ISO transfer only partially completed"}, + {-EAGAIN, "Too match scheduled for the future"}, + {-ENXIO, "URB already queued"}, + {-EFBIG, "Too much ISO frames requested"}, + {-ENOSR, "Buffer error (overrun)"}, + {-EPIPE, "Specified endpoint is stalled (device not responding)"}, + {-EOVERFLOW, "Babble (bad cable?)"}, + {-EPROTO, "Bit-stuff error (bad cable?)"}, + {-EILSEQ, "CRC/Timeout"}, + {-ETIMEDOUT, "NAK (device does not respond)"}, + {-ESHUTDOWN, "Device unplugged"}, + {-1, NULL} +}; + +static inline const char * +symbolic(struct hfcusb_symbolic_list list[], const int num) +{ + int i; + for (i = 0; list[i].name != NULL; i++) + if (list[i].num == num) + return list[i].name; + return "<unkown USB Error>"; +} + +/* USB descriptor need to contain one of the following EndPoint combination: */ +#define CNF_4INT3ISO 1 /* 4 INT IN, 3 ISO OUT */ +#define CNF_3INT3ISO 2 /* 3 INT IN, 3 ISO OUT */ +#define CNF_4ISO3ISO 3 /* 4 ISO IN, 3 ISO OUT */ +#define CNF_3ISO3ISO 4 /* 3 ISO IN, 3 ISO OUT */ + +#define EP_NUL 1 /* Endpoint at this position not allowed */ +#define EP_NOP 2 /* all type of endpoints allowed at this position */ +#define EP_ISO 3 /* Isochron endpoint mandatory at this position */ +#define EP_BLK 4 /* Bulk endpoint mandatory at this position */ +#define EP_INT 5 /* Interrupt endpoint mandatory at this position */ + +#define HFC_CHAN_B1 0 +#define HFC_CHAN_B2 1 +#define HFC_CHAN_D 2 +#define HFC_CHAN_E 3 + + +/* + * List of all supported enpoints configiration sets, used to find the + * best matching endpoint configuration within a devices' USB descriptor. + * We need at least 3 RX endpoints, and 3 TX endpoints, either + * INT-in and ISO-out, or ISO-in and ISO-out) + * with 4 RX endpoints even E-Channel logging is possible + */ +static int +validconf[][19] = { + /* INT in, ISO out config */ + {EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NOP, EP_INT, + EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL, + CNF_4INT3ISO, 2, 1}, + {EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_INT, EP_NUL, EP_NUL, + EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_ISO, EP_NUL, EP_NUL, EP_NUL, + CNF_3INT3ISO, 2, 0}, + /* ISO in, ISO out config */ + {EP_NOP, EP_NOP, EP_NOP, EP_NOP, EP_NOP, EP_NOP, EP_NOP, EP_NOP, + EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NOP, EP_ISO, + CNF_4ISO3ISO, 2, 1}, + {EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, EP_NUL, + EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_ISO, EP_NUL, EP_NUL, + CNF_3ISO3ISO, 2, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* EOL element */ +}; + +/* string description of chosen config */ +char *conf_str[] = { + "4 Interrupt IN + 3 Isochron OUT", + "3 Interrupt IN + 3 Isochron OUT", + "4 Isochron IN + 3 Isochron OUT", + "3 Isochron IN + 3 Isochron OUT" +}; + + +#define LED_OFF 0 /* no LED support */ +#define LED_SCHEME1 1 /* LED standard scheme */ +#define LED_SCHEME2 2 /* not used yet... */ + +#define LED_POWER_ON 1 +#define LED_POWER_OFF 2 +#define LED_S0_ON 3 +#define LED_S0_OFF 4 +#define LED_B1_ON 5 +#define LED_B1_OFF 6 +#define LED_B1_DATA 7 +#define LED_B2_ON 8 +#define LED_B2_OFF 9 +#define LED_B2_DATA 10 + +#define LED_NORMAL 0 /* LEDs are normal */ +#define LED_INVERTED 1 /* LEDs are inverted */ + +/* time in ms to perform a Flashing LED when B-Channel has traffic */ +#define LED_TIME 250 + + + +struct hfcsusb; +struct usb_fifo; + +/* structure defining input+output fifos (interrupt/bulk mode) */ +struct iso_urb { + struct urb *urb; + __u8 buffer[ISO_BUFFER_SIZE]; /* buffer rx/tx USB URB data */ + struct usb_fifo *owner_fifo; /* pointer to owner fifo */ + __u8 indx; /* Fifos's ISO double buffer 0 or 1 ? */ +#ifdef ISO_FRAME_START_DEBUG + int start_frames[ISO_FRAME_START_RING_COUNT]; + __u8 iso_frm_strt_pos; /* index in start_frame[] */ +#endif +}; + +struct usb_fifo { + int fifonum; /* fifo index attached to this structure */ + int active; /* fifo is currently active */ + struct hfcsusb *hw; /* pointer to main structure */ + int pipe; /* address of endpoint */ + __u8 usb_packet_maxlen; /* maximum length for usb transfer */ + unsigned int max_size; /* maximum size of receive/send packet */ + __u8 intervall; /* interrupt interval */ + struct urb *urb; /* transfer structure for usb routines */ + __u8 buffer[128]; /* buffer USB INT OUT URB data */ + int bit_line; /* how much bits are in the fifo? */ + + __u8 usb_transfer_mode; /* switched between ISO and INT */ + struct iso_urb iso[2]; /* two urbs to have one always + one pending */ + + struct dchannel *dch; /* link to hfcsusb_t->dch */ + struct bchannel *bch; /* link to hfcsusb_t->bch */ + struct dchannel *ech; /* link to hfcsusb_t->ech, TODO: E-CHANNEL */ + int last_urblen; /* remember length of last packet */ + __u8 stop_gracefull; /* stops URB retransmission */ +}; + +struct hfcsusb { + struct list_head list; + struct dchannel dch; + struct bchannel bch[2]; + struct dchannel ech; /* TODO : wait for struct echannel ;) */ + + struct usb_device *dev; /* our device */ + struct usb_interface *intf; /* used interface */ + int if_used; /* used interface number */ + int alt_used; /* used alternate config */ + int cfg_used; /* configuration index used */ + int vend_idx; /* index in hfcsusb_idtab */ + int packet_size; + int iso_packet_size; + struct usb_fifo fifos[HFCUSB_NUM_FIFOS]; + + /* control pipe background handling */ + struct ctrl_buf ctrl_buff[HFC_CTRL_BUFSIZE]; + int ctrl_in_idx, ctrl_out_idx, ctrl_cnt; + struct urb *ctrl_urb; + struct usb_ctrlrequest ctrl_write; + struct usb_ctrlrequest ctrl_read; + int ctrl_paksize; + int ctrl_in_pipe, ctrl_out_pipe; + spinlock_t ctrl_lock; /* lock for ctrl */ + spinlock_t lock; + + __u8 threshold_mask; + __u8 led_state; + + __u8 protocol; + int nt_timer; + int open; + __u8 timers; + __u8 initdone; + char name[MISDN_MAX_IDLEN]; +}; + +/* private vendor specific data */ +struct hfcsusb_vdata { + __u8 led_scheme; /* led display scheme */ + signed short led_bits[8]; /* array of 8 possible LED bitmask */ + char *vend_name; /* device name */ +}; + + +#define HFC_MAX_TE_LAYER1_STATE 8 +#define HFC_MAX_NT_LAYER1_STATE 4 + +const char *HFC_TE_LAYER1_STATES[HFC_MAX_TE_LAYER1_STATE + 1] = { + "TE F0 - Reset", + "TE F1 - Reset", + "TE F2 - Sensing", + "TE F3 - Deactivated", + "TE F4 - Awaiting signal", + "TE F5 - Identifying input", + "TE F6 - Synchronized", + "TE F7 - Activated", + "TE F8 - Lost framing", +}; + +const char *HFC_NT_LAYER1_STATES[HFC_MAX_NT_LAYER1_STATE + 1] = { + "NT G0 - Reset", + "NT G1 - Deactive", + "NT G2 - Pending activation", + "NT G3 - Active", + "NT G4 - Pending deactivation", +}; + +/* supported devices */ +static struct usb_device_id hfcsusb_idtab[] = { + { + USB_DEVICE(0x0959, 0x2bd0), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_OFF, {4, 0, 2, 1}, + "ISDN USB TA (Cologne Chip HFC-S USB based)"}), + }, + { + USB_DEVICE(0x0675, 0x1688), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {1, 2, 0, 0}, + "DrayTek miniVigor 128 USB ISDN TA"}), + }, + { + USB_DEVICE(0x07b0, 0x0007), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {0x80, -64, -32, -16}, + "Billion tiny USB ISDN TA 128"}), + }, + { + USB_DEVICE(0x0742, 0x2008), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {4, 0, 2, 1}, + "Stollmann USB TA"}), + }, + { + USB_DEVICE(0x0742, 0x2009), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {4, 0, 2, 1}, + "Aceex USB ISDN TA"}), + }, + { + USB_DEVICE(0x0742, 0x200A), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {4, 0, 2, 1}, + "OEM USB ISDN TA"}), + }, + { + USB_DEVICE(0x08e3, 0x0301), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {2, 0, 1, 4}, + "Olitec USB RNIS"}), + }, + { + USB_DEVICE(0x07fa, 0x0846), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {0x80, -64, -32, -16}, + "Bewan Modem RNIS USB"}), + }, + { + USB_DEVICE(0x07fa, 0x0847), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {0x80, -64, -32, -16}, + "Djinn Numeris USB"}), + }, + { + USB_DEVICE(0x07b0, 0x0006), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {0x80, -64, -32, -16}, + "Twister ISDN TA"}), + }, + { + USB_DEVICE(0x071d, 0x1005), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {0x02, 0, 0x01, 0x04}, + "Eicon DIVA USB 4.0"}), + }, + { + USB_DEVICE(0x0586, 0x0102), + .driver_info = (unsigned long) &((struct hfcsusb_vdata) + {LED_SCHEME1, {0x88, -64, -32, -16}, + "ZyXEL OMNI.NET USB II"}), + }, + { } +}; + +MODULE_DEVICE_TABLE(usb, hfcsusb_idtab); + +#endif /* __HFCSUSB_H__ */ diff --git a/drivers/isdn/hysdn/hysdn_net.c b/drivers/isdn/hysdn/hysdn_net.c index 7ee5bd9f2bb4..579974cf4c9a 100644 --- a/drivers/isdn/hysdn/hysdn_net.c +++ b/drivers/isdn/hysdn/hysdn_net.c @@ -38,16 +38,12 @@ char *hysdn_net_revision = "$Revision: 1.8.6.4 $"; /* inside the definition. */ /****************************************************************************/ struct net_local { - struct net_device netdev; /* the network device */ - struct net_device_stats stats; - /* additional vars may be added here */ - char dev_name[9]; /* our own device name */ - /* Tx control lock. This protects the transmit buffer ring * state along with the "tx full" state of the driver. This * means all netif_queue flow control actions are protected * by this lock as well. */ + struct net_device *dev; spinlock_t lock; struct sk_buff *skbs[MAX_SKB_BUFFERS]; /* pointers to tx-skbs */ int in_idx, out_idx; /* indexes to buffer ring */ @@ -55,15 +51,6 @@ struct net_local { }; /* net_local */ -/*****************************************************/ -/* Get the current statistics for this card. */ -/* This may be called with the card open or closed ! */ -/*****************************************************/ -static struct net_device_stats * -net_get_stats(struct net_device *dev) -{ - return (&((struct net_local *) dev)->stats); -} /* net_device_stats */ /*********************************************************************/ /* Open/initialize the board. This is called (in the current kernel) */ @@ -182,8 +169,8 @@ hysdn_tx_netack(hysdn_card * card) if (!lp->sk_count) return; /* error condition */ - lp->stats.tx_packets++; - lp->stats.tx_bytes += lp->skbs[lp->out_idx]->len; + lp->dev->stats.tx_packets++; + lp->dev->stats.tx_bytes += lp->skbs[lp->out_idx]->len; dev_kfree_skb(lp->skbs[lp->out_idx++]); /* free skb */ if (lp->out_idx >= MAX_SKB_BUFFERS) @@ -200,29 +187,30 @@ void hysdn_rx_netpkt(hysdn_card * card, unsigned char *buf, unsigned short len) { struct net_local *lp = card->netif; + struct net_device *dev = lp->dev; struct sk_buff *skb; if (!lp) return; /* non existing device */ - lp->stats.rx_bytes += len; + dev->stats.rx_bytes += len; skb = dev_alloc_skb(len); if (skb == NULL) { printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", - lp->netdev.name); - lp->stats.rx_dropped++; + dev->name); + dev->stats.rx_dropped++; return; } /* copy the data */ memcpy(skb_put(skb, len), buf, len); /* determine the used protocol */ - skb->protocol = eth_type_trans(skb, &lp->netdev); + skb->protocol = eth_type_trans(skb, dev); - netif_rx(skb); - lp->stats.rx_packets++; /* adjust packet count */ + dev->stats.rx_packets++; /* adjust packet count */ + netif_rx(skb); } /* hysdn_rx_netpkt */ /*****************************************************/ @@ -242,24 +230,15 @@ hysdn_tx_netget(hysdn_card * card) return (lp->skbs[lp->out_idx]); /* next packet to send */ } /* hysdn_tx_netget */ +static const struct net_device_ops hysdn_netdev_ops = { + .ndo_open = net_open, + .ndo_stop = net_close, + .ndo_start_xmit = net_send_packet, + .ndo_change_mtu = eth_change_mtu, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; -/*******************************************/ -/* init function called by register device */ -/*******************************************/ -static int -net_init(struct net_device *dev) -{ - /* setup the function table */ - dev->open = net_open; - dev->stop = net_close; - dev->hard_start_xmit = net_send_packet; - dev->get_stats = net_get_stats; - - /* Fill in the fields of the device structure with ethernet values. */ - ether_setup(dev); - - return (0); /* success */ -} /* net_init */ /*****************************************************************************/ /* hysdn_net_create creates a new net device for the given card. If a device */ @@ -271,28 +250,34 @@ hysdn_net_create(hysdn_card * card) { struct net_device *dev; int i; + struct net_local *lp; + if(!card) { printk(KERN_WARNING "No card-pt in hysdn_net_create!\n"); return (-ENOMEM); } hysdn_net_release(card); /* release an existing net device */ - if ((dev = kzalloc(sizeof(struct net_local), GFP_KERNEL)) == NULL) { + + dev = alloc_etherdev(sizeof(struct net_local)); + if (!dev) { printk(KERN_WARNING "HYSDN: unable to allocate mem\n"); return (-ENOMEM); } + lp = netdev_priv(dev); + lp->dev = dev; + + dev->netdev_ops = &hysdn_netdev_ops; spin_lock_init(&((struct net_local *) dev)->lock); /* initialise necessary or informing fields */ dev->base_addr = card->iobase; /* IO address */ dev->irq = card->irq; /* irq */ - dev->init = net_init; /* the init function of the device */ - if(dev->name) { - strcpy(dev->name, ((struct net_local *) dev)->dev_name); - } + + dev->netdev_ops = &hysdn_netdev_ops; if ((i = register_netdev(dev))) { printk(KERN_WARNING "HYSDN: unable to create network device\n"); - kfree(dev); + free_netdev(dev); return (i); } dev->ml_priv = card; /* remember pointer to own data structure */ @@ -316,7 +301,7 @@ hysdn_net_release(hysdn_card * card) return (0); /* non existing */ card->netif = NULL; /* clear out pointer */ - dev->stop(dev); /* close the device */ + net_close(dev); flush_tx_buffers((struct net_local *) dev); /* empty buffers */ diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c index 023ea11d2f9e..7c5f97033b9f 100644 --- a/drivers/isdn/i4l/isdn_net.c +++ b/drivers/isdn/i4l/isdn_net.c @@ -1485,6 +1485,24 @@ isdn_ciscohdlck_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return (rc); } + +static int isdn_net_ioctl(struct net_device *dev, + struct ifreq *ifr, int cmd) +{ + isdn_net_local *lp = (isdn_net_local *) netdev_priv(dev); + + switch (lp->p_encap) { +#ifdef CONFIG_ISDN_PPP + case ISDN_NET_ENCAP_SYNCPPP: + return isdn_ppp_dev_ioctl(dev, ifr, cmd); +#endif + case ISDN_NET_ENCAP_CISCOHDLCK: + return isdn_ciscohdlck_dev_ioctl(dev, ifr, cmd); + default: + return -EINVAL; + } +} + /* called via cisco_timer.function */ static void isdn_net_ciscohdlck_slarp_send_keepalive(unsigned long data) @@ -1998,23 +2016,6 @@ isdn_net_init(struct net_device *ndev) ushort max_hlhdr_len = 0; int drvidx; - ether_setup(ndev); - ndev->header_ops = NULL; - - /* Setup the generic properties */ - ndev->mtu = 1500; - ndev->flags = IFF_NOARP|IFF_POINTOPOINT; - ndev->type = ARPHRD_ETHER; - ndev->addr_len = ETH_ALEN; - ndev->validate_addr = NULL; - - /* for clients with MPPP maybe higher values better */ - ndev->tx_queue_len = 30; - - /* The ISDN-specific entries in the device structure. */ - ndev->open = &isdn_net_open; - ndev->hard_start_xmit = &isdn_net_start_xmit; - /* * up till binding we ask the protocol layer to reserve as much * as we might need for HL layer @@ -2026,9 +2027,6 @@ isdn_net_init(struct net_device *ndev) max_hlhdr_len = dev->drv[drvidx]->interface->hl_hdrlen; ndev->hard_header_len = ETH_HLEN + max_hlhdr_len; - ndev->stop = &isdn_net_close; - ndev->get_stats = &isdn_net_get_stats; - ndev->do_ioctl = NULL; return 0; } @@ -2508,6 +2506,19 @@ isdn_net_force_dial(char *name) return (isdn_net_force_dial_lp(p->local)); } +/* The ISDN-specific entries in the device structure. */ +static const struct net_device_ops isdn_netdev_ops = { + .ndo_init = isdn_net_init, + .ndo_open = isdn_net_open, + .ndo_stop = isdn_net_close, + .ndo_do_ioctl = isdn_net_ioctl, + + .ndo_validate_addr = NULL, + .ndo_start_xmit = isdn_net_start_xmit, + .ndo_get_stats = isdn_net_get_stats, + .ndo_tx_timeout = isdn_net_tx_timeout, +}; + /* * Helper for alloc_netdev() */ @@ -2515,7 +2526,20 @@ static void _isdn_setup(struct net_device *dev) { isdn_net_local *lp = netdev_priv(dev); + ether_setup(dev); + dev->flags = IFF_NOARP | IFF_POINTOPOINT; + /* Setup the generic properties */ + dev->mtu = 1500; + dev->flags = IFF_NOARP|IFF_POINTOPOINT; + dev->type = ARPHRD_ETHER; + dev->addr_len = ETH_ALEN; + dev->header_ops = NULL; + dev->netdev_ops = &isdn_netdev_ops; + + /* for clients with MPPP maybe higher values better */ + dev->tx_queue_len = 30; + lp->p_encap = ISDN_NET_ENCAP_RAWIP; lp->magic = ISDN_NET_MAGIC; lp->last = lp; @@ -2570,7 +2594,7 @@ isdn_net_new(char *name, struct net_device *master) return NULL; } netdev->local = netdev_priv(netdev->dev); - netdev->dev->init = isdn_net_init; + if (master) { /* Device shall be a slave */ struct net_device *p = MASTER_TO_SLAVE(master); @@ -2588,7 +2612,6 @@ isdn_net_new(char *name, struct net_device *master) /* * Watchdog timer (currently) for master only. */ - netdev->dev->tx_timeout = isdn_net_tx_timeout; netdev->dev->watchdog_timeo = ISDN_NET_TX_TIMEOUT; if (register_netdev(netdev->dev) != 0) { printk(KERN_WARNING "isdn_net: Could not register net-device\n"); @@ -2704,7 +2727,6 @@ isdn_net_setcfg(isdn_net_ioctl_cfg * cfg) #else p->dev->type = ARPHRD_PPP; /* change ARP type */ p->dev->addr_len = 0; - p->dev->do_ioctl = isdn_ppp_dev_ioctl; #endif break; case ISDN_NET_ENCAP_X25IFACE: @@ -2718,7 +2740,6 @@ isdn_net_setcfg(isdn_net_ioctl_cfg * cfg) #endif break; case ISDN_NET_ENCAP_CISCOHDLCK: - p->dev->do_ioctl = isdn_ciscohdlck_dev_ioctl; break; default: if( cfg->p_encap >= 0 && diff --git a/drivers/isdn/mISDN/Makefile b/drivers/isdn/mISDN/Makefile index 1cb5e633cf75..0a6bd2a9e730 100644 --- a/drivers/isdn/mISDN/Makefile +++ b/drivers/isdn/mISDN/Makefile @@ -8,6 +8,6 @@ obj-$(CONFIG_MISDN_L1OIP) += l1oip.o # multi objects -mISDN_core-objs := core.o fsm.o socket.o hwchannel.o stack.o layer1.o layer2.o tei.o timerdev.o +mISDN_core-objs := core.o fsm.o socket.o clock.o hwchannel.o stack.o layer1.o layer2.o tei.o timerdev.o mISDN_dsp-objs := dsp_core.o dsp_cmx.o dsp_tones.o dsp_dtmf.o dsp_audio.o dsp_blowfish.o dsp_pipeline.o dsp_hwec.o l1oip-objs := l1oip_core.o l1oip_codec.o diff --git a/drivers/isdn/mISDN/clock.c b/drivers/isdn/mISDN/clock.c new file mode 100644 index 000000000000..44d9c3d5d33d --- /dev/null +++ b/drivers/isdn/mISDN/clock.c @@ -0,0 +1,216 @@ +/* + * Copyright 2008 by Andreas Eversberg <andreas@eversberg.eu> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Quick API description: + * + * A clock source registers using mISDN_register_clock: + * name = text string to name clock source + * priority = value to priorize clock sources (0 = default) + * ctl = callback function to enable/disable clock source + * priv = private pointer of clock source + * return = pointer to clock source structure; + * + * Note: Callback 'ctl' can be called before mISDN_register_clock returns! + * Also it can be called during mISDN_unregister_clock. + * + * A clock source calls mISDN_clock_update with given samples elapsed, if + * enabled. If function call is delayed, tv must be set with the timestamp + * of the actual event. + * + * A clock source unregisters using mISDN_unregister_clock. + * + * To get current clock, call mISDN_clock_get. The signed short value + * counts the number of samples since. Time since last clock event is added. + * + */ + +#include <linux/types.h> +#include <linux/stddef.h> +#include <linux/spinlock.h> +#include <linux/mISDNif.h> +#include "core.h" + +static u_int *debug; +static LIST_HEAD(iclock_list); +DEFINE_RWLOCK(iclock_lock); +u16 iclock_count; /* counter of last clock */ +struct timeval iclock_tv; /* time stamp of last clock */ +int iclock_tv_valid; /* already received one timestamp */ +struct mISDNclock *iclock_current; + +void +mISDN_init_clock(u_int *dp) +{ + debug = dp; + do_gettimeofday(&iclock_tv); +} + +static void +select_iclock(void) +{ + struct mISDNclock *iclock, *bestclock = NULL, *lastclock = NULL; + int pri = -128; + + list_for_each_entry(iclock, &iclock_list, list) { + if (iclock->pri > pri) { + pri = iclock->pri; + bestclock = iclock; + } + if (iclock_current == iclock) + lastclock = iclock; + } + if (lastclock && bestclock != lastclock) { + /* last used clock source still exists but changes, disable */ + if (*debug & DEBUG_CLOCK) + printk(KERN_DEBUG "Old clock source '%s' disable.\n", + lastclock->name); + lastclock->ctl(lastclock->priv, 0); + } + if (bestclock && bestclock != iclock_current) { + /* new clock source selected, enable */ + if (*debug & DEBUG_CLOCK) + printk(KERN_DEBUG "New clock source '%s' enable.\n", + bestclock->name); + bestclock->ctl(bestclock->priv, 1); + } + if (bestclock != iclock_current) { + /* no clock received yet */ + iclock_tv_valid = 0; + } + iclock_current = bestclock; +} + +struct mISDNclock +*mISDN_register_clock(char *name, int pri, clockctl_func_t *ctl, void *priv) +{ + u_long flags; + struct mISDNclock *iclock; + + if (*debug & (DEBUG_CORE | DEBUG_CLOCK)) + printk(KERN_DEBUG "%s: %s %d\n", __func__, name, pri); + iclock = kzalloc(sizeof(struct mISDNclock), GFP_ATOMIC); + if (!iclock) { + printk(KERN_ERR "%s: No memory for clock entry.\n", __func__); + return NULL; + } + strncpy(iclock->name, name, sizeof(iclock->name)-1); + iclock->pri = pri; + iclock->priv = priv; + iclock->ctl = ctl; + write_lock_irqsave(&iclock_lock, flags); + list_add_tail(&iclock->list, &iclock_list); + select_iclock(); + write_unlock_irqrestore(&iclock_lock, flags); + return iclock; +} +EXPORT_SYMBOL(mISDN_register_clock); + +void +mISDN_unregister_clock(struct mISDNclock *iclock) +{ + u_long flags; + + if (*debug & (DEBUG_CORE | DEBUG_CLOCK)) + printk(KERN_DEBUG "%s: %s %d\n", __func__, iclock->name, + iclock->pri); + write_lock_irqsave(&iclock_lock, flags); + if (iclock_current == iclock) { + if (*debug & DEBUG_CLOCK) + printk(KERN_DEBUG + "Current clock source '%s' unregisters.\n", + iclock->name); + iclock->ctl(iclock->priv, 0); + } + list_del(&iclock->list); + select_iclock(); + write_unlock_irqrestore(&iclock_lock, flags); +} +EXPORT_SYMBOL(mISDN_unregister_clock); + +void +mISDN_clock_update(struct mISDNclock *iclock, int samples, struct timeval *tv) +{ + u_long flags; + struct timeval tv_now; + time_t elapsed_sec; + int elapsed_8000th; + + write_lock_irqsave(&iclock_lock, flags); + if (iclock_current != iclock) { + printk(KERN_ERR "%s: '%s' sends us clock updates, but we do " + "listen to '%s'. This is a bug!\n", __func__, + iclock->name, + iclock_current ? iclock_current->name : "nothing"); + iclock->ctl(iclock->priv, 0); + write_unlock_irqrestore(&iclock_lock, flags); + return; + } + if (iclock_tv_valid) { + /* increment sample counter by given samples */ + iclock_count += samples; + if (tv) { /* tv must be set, if function call is delayed */ + iclock_tv.tv_sec = tv->tv_sec; + iclock_tv.tv_usec = tv->tv_usec; + } else + do_gettimeofday(&iclock_tv); + } else { + /* calc elapsed time by system clock */ + if (tv) { /* tv must be set, if function call is delayed */ + tv_now.tv_sec = tv->tv_sec; + tv_now.tv_usec = tv->tv_usec; + } else + do_gettimeofday(&tv_now); + elapsed_sec = tv_now.tv_sec - iclock_tv.tv_sec; + elapsed_8000th = (tv_now.tv_usec / 125) + - (iclock_tv.tv_usec / 125); + if (elapsed_8000th < 0) { + elapsed_sec -= 1; + elapsed_8000th += 8000; + } + /* add elapsed time to counter and set new timestamp */ + iclock_count += elapsed_sec * 8000 + elapsed_8000th; + iclock_tv.tv_sec = tv_now.tv_sec; + iclock_tv.tv_usec = tv_now.tv_usec; + iclock_tv_valid = 1; + if (*debug & DEBUG_CLOCK) + printk("Received first clock from source '%s'.\n", + iclock_current ? iclock_current->name : "nothing"); + } + write_unlock_irqrestore(&iclock_lock, flags); +} +EXPORT_SYMBOL(mISDN_clock_update); + +unsigned short +mISDN_clock_get(void) +{ + u_long flags; + struct timeval tv_now; + time_t elapsed_sec; + int elapsed_8000th; + u16 count; + + read_lock_irqsave(&iclock_lock, flags); + /* calc elapsed time by system clock */ + do_gettimeofday(&tv_now); + elapsed_sec = tv_now.tv_sec - iclock_tv.tv_sec; + elapsed_8000th = (tv_now.tv_usec / 125) - (iclock_tv.tv_usec / 125); + if (elapsed_8000th < 0) { + elapsed_sec -= 1; + elapsed_8000th += 8000; + } + /* add elapsed time to counter */ + count = iclock_count + elapsed_sec * 8000 + elapsed_8000th; + read_unlock_irqrestore(&iclock_lock, flags); + return count; +} +EXPORT_SYMBOL(mISDN_clock_get); + diff --git a/drivers/isdn/mISDN/core.c b/drivers/isdn/mISDN/core.c index 751665c448d0..9426c9827e47 100644 --- a/drivers/isdn/mISDN/core.c +++ b/drivers/isdn/mISDN/core.c @@ -25,39 +25,183 @@ MODULE_AUTHOR("Karsten Keil"); MODULE_LICENSE("GPL"); module_param(debug, uint, S_IRUGO | S_IWUSR); -static LIST_HEAD(devices); -static DEFINE_RWLOCK(device_lock); static u64 device_ids; #define MAX_DEVICE_ID 63 static LIST_HEAD(Bprotocols); static DEFINE_RWLOCK(bp_lock); +static void mISDN_dev_release(struct device *dev) +{ + /* nothing to do: the device is part of its parent's data structure */ +} + +static ssize_t _show_id(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mISDNdevice *mdev = dev_to_mISDN(dev); + + if (!mdev) + return -ENODEV; + return sprintf(buf, "%d\n", mdev->id); +} + +static ssize_t _show_nrbchan(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mISDNdevice *mdev = dev_to_mISDN(dev); + + if (!mdev) + return -ENODEV; + return sprintf(buf, "%d\n", mdev->nrbchan); +} + +static ssize_t _show_d_protocols(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mISDNdevice *mdev = dev_to_mISDN(dev); + + if (!mdev) + return -ENODEV; + return sprintf(buf, "%d\n", mdev->Dprotocols); +} + +static ssize_t _show_b_protocols(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mISDNdevice *mdev = dev_to_mISDN(dev); + + if (!mdev) + return -ENODEV; + return sprintf(buf, "%d\n", mdev->Bprotocols | get_all_Bprotocols()); +} + +static ssize_t _show_protocol(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mISDNdevice *mdev = dev_to_mISDN(dev); + + if (!mdev) + return -ENODEV; + return sprintf(buf, "%d\n", mdev->D.protocol); +} + +static ssize_t _show_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + strcpy(buf, dev_name(dev)); + return strlen(buf); +} + +#if 0 /* hangs */ +static ssize_t _set_name(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int err = 0; + char *out = kmalloc(count + 1, GFP_KERNEL); + + if (!out) + return -ENOMEM; + + memcpy(out, buf, count); + if (count && out[count - 1] == '\n') + out[--count] = 0; + if (count) + err = device_rename(dev, out); + kfree(out); + + return (err < 0) ? err : count; +} +#endif + +static ssize_t _show_channelmap(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mISDNdevice *mdev = dev_to_mISDN(dev); + char *bp = buf; + int i; + + for (i = 0; i <= mdev->nrbchan; i++) + *bp++ = test_channelmap(i, mdev->channelmap) ? '1' : '0'; + + return bp - buf; +} + +static struct device_attribute mISDN_dev_attrs[] = { + __ATTR(id, S_IRUGO, _show_id, NULL), + __ATTR(d_protocols, S_IRUGO, _show_d_protocols, NULL), + __ATTR(b_protocols, S_IRUGO, _show_b_protocols, NULL), + __ATTR(protocol, S_IRUGO, _show_protocol, NULL), + __ATTR(channelmap, S_IRUGO, _show_channelmap, NULL), + __ATTR(nrbchan, S_IRUGO, _show_nrbchan, NULL), + __ATTR(name, S_IRUGO, _show_name, NULL), +/* __ATTR(name, S_IRUGO|S_IWUSR, _show_name, _set_name), */ + {} +}; + +#ifdef CONFIG_HOTPLUG +static int mISDN_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct mISDNdevice *mdev = dev_to_mISDN(dev); + + if (!mdev) + return 0; + + if (add_uevent_var(env, "nchans=%d", mdev->nrbchan)) + return -ENOMEM; + + return 0; +} +#endif + +static void mISDN_class_release(struct class *cls) +{ + /* do nothing, it's static */ +} + +static struct class mISDN_class = { + .name = "mISDN", + .owner = THIS_MODULE, +#ifdef CONFIG_HOTPLUG + .dev_uevent = mISDN_uevent, +#endif + .dev_attrs = mISDN_dev_attrs, + .dev_release = mISDN_dev_release, + .class_release = mISDN_class_release, +}; + +static int +_get_mdevice(struct device *dev, void *id) +{ + struct mISDNdevice *mdev = dev_to_mISDN(dev); + + if (!mdev) + return 0; + if (mdev->id != *(u_int *)id) + return 0; + return 1; +} + struct mISDNdevice *get_mdevice(u_int id) { - struct mISDNdevice *dev; + return dev_to_mISDN(class_find_device(&mISDN_class, NULL, &id, + _get_mdevice)); +} - read_lock(&device_lock); - list_for_each_entry(dev, &devices, D.list) - if (dev->id == id) { - read_unlock(&device_lock); - return dev; - } - read_unlock(&device_lock); - return NULL; +static int +_get_mdevice_count(struct device *dev, void *cnt) +{ + *(int *)cnt += 1; + return 0; } int get_mdevice_count(void) { - struct mISDNdevice *dev; - int cnt = 0; + int cnt = 0; - read_lock(&device_lock); - list_for_each_entry(dev, &devices, D.list) - cnt++; - read_unlock(&device_lock); + class_for_each_device(&mISDN_class, NULL, &cnt, _get_mdevice_count); return cnt; } @@ -68,48 +212,66 @@ get_free_devid(void) for (i = 0; i <= MAX_DEVICE_ID; i++) if (!test_and_set_bit(i, (u_long *)&device_ids)) - return i; - return -1; + break; + if (i > MAX_DEVICE_ID) + return -1; + return i; } int -mISDN_register_device(struct mISDNdevice *dev, char *name) +mISDN_register_device(struct mISDNdevice *dev, + struct device *parent, char *name) { - u_long flags; int err; dev->id = get_free_devid(); + err = -EBUSY; if (dev->id < 0) - return -EBUSY; + goto error1; + + device_initialize(&dev->dev); if (name && name[0]) - strcpy(dev->name, name); + dev_set_name(&dev->dev, "%s", name); else - sprintf(dev->name, "mISDN%d", dev->id); + dev_set_name(&dev->dev, "mISDN%d", dev->id); if (debug & DEBUG_CORE) printk(KERN_DEBUG "mISDN_register %s %d\n", - dev->name, dev->id); + dev_name(&dev->dev), dev->id); err = create_stack(dev); if (err) - return err; - write_lock_irqsave(&device_lock, flags); - list_add_tail(&dev->D.list, &devices); - write_unlock_irqrestore(&device_lock, flags); + goto error1; + + dev->dev.class = &mISDN_class; + dev->dev.platform_data = dev; + dev->dev.parent = parent; + dev_set_drvdata(&dev->dev, dev); + + err = device_add(&dev->dev); + if (err) + goto error3; return 0; + +error3: + delete_stack(dev); + return err; +error1: + return err; + } EXPORT_SYMBOL(mISDN_register_device); void mISDN_unregister_device(struct mISDNdevice *dev) { - u_long flags; - if (debug & DEBUG_CORE) printk(KERN_DEBUG "mISDN_unregister %s %d\n", - dev->name, dev->id); - write_lock_irqsave(&device_lock, flags); - list_del(&dev->D.list); - write_unlock_irqrestore(&device_lock, flags); + dev_name(&dev->dev), dev->id); + /* sysfs_remove_link(&dev->dev.kobj, "device"); */ + device_del(&dev->dev); + dev_set_drvdata(&dev->dev, NULL); + test_and_clear_bit(dev->id, (u_long *)&device_ids); delete_stack(dev); + put_device(&dev->dev); } EXPORT_SYMBOL(mISDN_unregister_device); @@ -199,43 +361,45 @@ mISDNInit(void) printk(KERN_INFO "Modular ISDN core version %d.%d.%d\n", MISDN_MAJOR_VERSION, MISDN_MINOR_VERSION, MISDN_RELEASE); + mISDN_init_clock(&debug); mISDN_initstack(&debug); + err = class_register(&mISDN_class); + if (err) + goto error1; err = mISDN_inittimer(&debug); if (err) - goto error; + goto error2; err = l1_init(&debug); - if (err) { - mISDN_timer_cleanup(); - goto error; - } + if (err) + goto error3; err = Isdnl2_Init(&debug); - if (err) { - mISDN_timer_cleanup(); - l1_cleanup(); - goto error; - } + if (err) + goto error4; err = misdn_sock_init(&debug); - if (err) { - mISDN_timer_cleanup(); - l1_cleanup(); - Isdnl2_cleanup(); - } -error: + if (err) + goto error5; + return 0; + +error5: + Isdnl2_cleanup(); +error4: + l1_cleanup(); +error3: + mISDN_timer_cleanup(); +error2: + class_unregister(&mISDN_class); +error1: return err; } static void mISDN_cleanup(void) { misdn_sock_cleanup(); - mISDN_timer_cleanup(); - l1_cleanup(); Isdnl2_cleanup(); + l1_cleanup(); + mISDN_timer_cleanup(); + class_unregister(&mISDN_class); - if (!list_empty(&devices)) - printk(KERN_ERR "%s devices still registered\n", __func__); - - if (!list_empty(&Bprotocols)) - printk(KERN_ERR "%s Bprotocols still registered\n", __func__); printk(KERN_DEBUG "mISDNcore unloaded\n"); } diff --git a/drivers/isdn/mISDN/core.h b/drivers/isdn/mISDN/core.h index 7da7233b4c1a..7ac2f81a812b 100644 --- a/drivers/isdn/mISDN/core.h +++ b/drivers/isdn/mISDN/core.h @@ -74,4 +74,6 @@ extern void l1_cleanup(void); extern int Isdnl2_Init(u_int *); extern void Isdnl2_cleanup(void); +extern void mISDN_init_clock(u_int *); + #endif diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h index 6c3fed6b8d4f..98a33c58f091 100644 --- a/drivers/isdn/mISDN/dsp.h +++ b/drivers/isdn/mISDN/dsp.h @@ -15,6 +15,7 @@ #define DEBUG_DSP_TONE 0x0020 #define DEBUG_DSP_BLOWFISH 0x0040 #define DEBUG_DSP_DELAY 0x0100 +#define DEBUG_DSP_CLOCK 0x0200 #define DEBUG_DSP_DTMFCOEFF 0x8000 /* heavy output */ /* options may be: @@ -198,6 +199,7 @@ struct dsp { /* hardware stuff */ struct dsp_features features; int features_rx_off; /* set if rx_off is featured */ + int features_fill_empty; /* set if fill_empty is featured */ int pcm_slot_rx; /* current PCM slot (or -1) */ int pcm_bank_rx; int pcm_slot_tx; diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c index c884511e2d49..0ac67bff303a 100644 --- a/drivers/isdn/mISDN/dsp_cmx.c +++ b/drivers/isdn/mISDN/dsp_cmx.c @@ -137,6 +137,7 @@ /* #define CMX_CONF_DEBUG */ /*#define CMX_DEBUG * massive read/write pointer output */ +/*#define CMX_DELAY_DEBUG * gives rx-buffer delay overview */ /*#define CMX_TX_DEBUG * massive read/write on tx-buffer with content */ static inline int @@ -744,11 +745,11 @@ conf_software: if (dsp->pcm_slot_rx >= 0 && dsp->pcm_slot_rx < sizeof(freeslots)) - freeslots[dsp->pcm_slot_tx] = 0; + freeslots[dsp->pcm_slot_rx] = 0; if (dsp->pcm_slot_tx >= 0 && dsp->pcm_slot_tx < sizeof(freeslots)) - freeslots[dsp->pcm_slot_rx] = 0; + freeslots[dsp->pcm_slot_tx] = 0; } } i = 0; @@ -836,11 +837,11 @@ conf_software: if (dsp->pcm_slot_rx >= 0 && dsp->pcm_slot_rx < sizeof(freeslots)) - freeslots[dsp->pcm_slot_tx] = 0; + freeslots[dsp->pcm_slot_rx] = 0; if (dsp->pcm_slot_tx >= 0 && dsp->pcm_slot_tx < sizeof(freeslots)) - freeslots[dsp->pcm_slot_rx] = 0; + freeslots[dsp->pcm_slot_tx] = 0; } } i1 = 0; @@ -926,10 +927,6 @@ conf_software: /* for more than two members.. */ - /* in case of hdlc, we change to software */ - if (dsp->hdlc) - goto conf_software; - /* if all members already have the same conference */ if (all_conf) return; @@ -940,6 +937,9 @@ conf_software: if (current_conf >= 0) { join_members: list_for_each_entry(member, &conf->mlist, list) { + /* in case of hdlc, change to software */ + if (member->dsp->hdlc) + goto conf_software; /* join to current conference */ if (member->dsp->hfc_conf == current_conf) continue; @@ -1135,6 +1135,25 @@ dsp_cmx_conf(struct dsp *dsp, u32 conf_id) return 0; } +#ifdef CMX_DELAY_DEBUG +int delaycount; +static void +showdelay(struct dsp *dsp, int samples, int delay) +{ + char bar[] = "--------------------------------------------------|"; + int sdelay; + + delaycount += samples; + if (delaycount < 8000) + return; + delaycount = 0; + + sdelay = delay * 50 / (dsp_poll << 2); + + printk(KERN_DEBUG "DELAY (%s) %3d >%s\n", dsp->name, delay, + sdelay > 50 ? "..." : bar + 50 - sdelay); +} +#endif /* * audio data is received from card @@ -1168,11 +1187,18 @@ dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb) dsp->rx_init = 0; if (dsp->features.unordered) { dsp->rx_R = (hh->id & CMX_BUFF_MASK); - dsp->rx_W = (dsp->rx_R + dsp->cmx_delay) - & CMX_BUFF_MASK; + if (dsp->cmx_delay) + dsp->rx_W = (dsp->rx_R + dsp->cmx_delay) + & CMX_BUFF_MASK; + else + dsp->rx_W = (dsp->rx_R + (dsp_poll >> 1)) + & CMX_BUFF_MASK; } else { dsp->rx_R = 0; - dsp->rx_W = dsp->cmx_delay; + if (dsp->cmx_delay) + dsp->rx_W = dsp->cmx_delay; + else + dsp->rx_W = dsp_poll >> 1; } } /* if frame contains time code, write directly */ @@ -1185,19 +1211,25 @@ dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb) * we set our new read pointer, and write silence to buffer */ if (((dsp->rx_W-dsp->rx_R) & CMX_BUFF_MASK) >= CMX_BUFF_HALF) { - if (dsp_debug & DEBUG_DSP_CMX) + if (dsp_debug & DEBUG_DSP_CLOCK) printk(KERN_DEBUG "cmx_receive(dsp=%lx): UNDERRUN (or overrun the " "maximum delay), adjusting read pointer! " "(inst %s)\n", (u_long)dsp, dsp->name); - /* flush buffer */ + /* flush rx buffer and set delay to dsp_poll / 2 */ if (dsp->features.unordered) { dsp->rx_R = (hh->id & CMX_BUFF_MASK); - dsp->rx_W = (dsp->rx_R + dsp->cmx_delay) - & CMX_BUFF_MASK; + if (dsp->cmx_delay) + dsp->rx_W = (dsp->rx_R + dsp->cmx_delay) + & CMX_BUFF_MASK; + dsp->rx_W = (dsp->rx_R + (dsp_poll >> 1)) + & CMX_BUFF_MASK; } else { dsp->rx_R = 0; - dsp->rx_W = dsp->cmx_delay; + if (dsp->cmx_delay) + dsp->rx_W = dsp->cmx_delay; + else + dsp->rx_W = dsp_poll >> 1; } memset(dsp->rx_buff, dsp_silence, sizeof(dsp->rx_buff)); } @@ -1205,7 +1237,7 @@ dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb) if (dsp->cmx_delay) if (((dsp->rx_W - dsp->rx_R) & CMX_BUFF_MASK) >= (dsp->cmx_delay << 1)) { - if (dsp_debug & DEBUG_DSP_CMX) + if (dsp_debug & DEBUG_DSP_CLOCK) printk(KERN_DEBUG "cmx_receive(dsp=%lx): OVERRUN (because " "twice the delay is reached), adjusting " @@ -1243,6 +1275,9 @@ dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb) /* increase write-pointer */ dsp->rx_W = ((dsp->rx_W+len) & CMX_BUFF_MASK); +#ifdef CMX_DELAY_DEBUG + showdelay(dsp, len, (dsp->rx_W-dsp->rx_R) & CMX_BUFF_MASK); +#endif } @@ -1360,8 +1395,12 @@ dsp_cmx_send_member(struct dsp *dsp, int len, s32 *c, int members) t = (t+1) & CMX_BUFF_MASK; r = (r+1) & CMX_BUFF_MASK; } - if (r != rr) + if (r != rr) { + if (dsp_debug & DEBUG_DSP_CLOCK) + printk(KERN_DEBUG "%s: RX empty\n", + __func__); memset(d, dsp_silence, (rr-r)&CMX_BUFF_MASK); + } /* -> if echo is enabled */ } else { /* @@ -1540,13 +1579,11 @@ send_packet: schedule_work(&dsp->workq); } -static u32 samplecount; +static u32 jittercount; /* counter for jitter check */; struct timer_list dsp_spl_tl; u32 dsp_spl_jiffies; /* calculate the next time to fire */ -#ifdef UNUSED -static u32 dsp_start_jiffies; /* jiffies at the time, the calculation begins */ -#endif /* UNUSED */ -static struct timeval dsp_start_tv; /* time at start of calculation */ +static u16 dsp_count; /* last sample count */ +static int dsp_count_valid ; /* if we have last sample count */ void dsp_cmx_send(void *arg) @@ -1560,38 +1597,32 @@ dsp_cmx_send(void *arg) int r, rr; int jittercheck = 0, delay, i; u_long flags; - struct timeval tv; - u32 elapsed; - s16 length; + u16 length, count; /* lock */ spin_lock_irqsave(&dsp_lock, flags); - if (!dsp_start_tv.tv_sec) { - do_gettimeofday(&dsp_start_tv); + if (!dsp_count_valid) { + dsp_count = mISDN_clock_get(); length = dsp_poll; + dsp_count_valid = 1; } else { - do_gettimeofday(&tv); - elapsed = ((tv.tv_sec - dsp_start_tv.tv_sec) * 8000) - + ((s32)(tv.tv_usec / 125) - (dsp_start_tv.tv_usec / 125)); - dsp_start_tv.tv_sec = tv.tv_sec; - dsp_start_tv.tv_usec = tv.tv_usec; - length = elapsed; + count = mISDN_clock_get(); + length = count - dsp_count; + dsp_count = count; } if (length > MAX_POLL + 100) length = MAX_POLL + 100; -/* printk(KERN_DEBUG "len=%d dsp_count=0x%x.%04x dsp_poll_diff=0x%x.%04x\n", - length, dsp_count >> 16, dsp_count & 0xffff, dsp_poll_diff >> 16, - dsp_poll_diff & 0xffff); - */ + /* printk(KERN_DEBUG "len=%d dsp_count=0x%x\n", length, dsp_count); */ /* - * check if jitter needs to be checked - * (this is about every second = 8192 samples) + * check if jitter needs to be checked (this is every second) */ - samplecount += length; - if ((samplecount & 8191) < length) + jittercount += length; + if (jittercount >= 8000) { + jittercount -= 8000; jittercheck = 1; + } /* loop all members that do not require conference mixing */ list_for_each_entry(dsp, &dsp_ilist, list) { @@ -1704,17 +1735,19 @@ dsp_cmx_send(void *arg) } /* * remove rx_delay only if we have delay AND we - * have not preset cmx_delay + * have not preset cmx_delay AND + * the delay is greater dsp_poll */ - if (delay && !dsp->cmx_delay) { - if (dsp_debug & DEBUG_DSP_CMX) + if (delay > dsp_poll && !dsp->cmx_delay) { + if (dsp_debug & DEBUG_DSP_CLOCK) printk(KERN_DEBUG "%s lowest rx_delay of %d bytes for" " dsp %s are now removed.\n", __func__, delay, dsp->name); r = dsp->rx_R; - rr = (r + delay) & CMX_BUFF_MASK; + rr = (r + delay - (dsp_poll >> 1)) + & CMX_BUFF_MASK; /* delete rx-data */ while (r != rr) { p[r] = dsp_silence; @@ -1736,15 +1769,16 @@ dsp_cmx_send(void *arg) * remove delay only if we have delay AND we * have enabled tx_dejitter */ - if (delay && dsp->tx_dejitter) { - if (dsp_debug & DEBUG_DSP_CMX) + if (delay > dsp_poll && dsp->tx_dejitter) { + if (dsp_debug & DEBUG_DSP_CLOCK) printk(KERN_DEBUG "%s lowest tx_delay of %d bytes for" " dsp %s are now removed.\n", __func__, delay, dsp->name); r = dsp->tx_R; - rr = (r + delay) & CMX_BUFF_MASK; + rr = (r + delay - (dsp_poll >> 1)) + & CMX_BUFF_MASK; /* delete tx-data */ while (r != rr) { q[r] = dsp_silence; @@ -1797,14 +1831,16 @@ dsp_cmx_transmit(struct dsp *dsp, struct sk_buff *skb) ww = dsp->tx_R; p = dsp->tx_buff; d = skb->data; - space = ww-w; - if (space <= 0) - space += CMX_BUFF_SIZE; + space = (ww - w - 1) & CMX_BUFF_MASK; /* write-pointer should not overrun nor reach read pointer */ - if (space-1 < skb->len) + if (space < skb->len) { /* write to the space we have left */ - ww = (ww - 1) & CMX_BUFF_MASK; - else + ww = (ww - 1) & CMX_BUFF_MASK; /* end one byte prior tx_R */ + if (dsp_debug & DEBUG_DSP_CLOCK) + printk(KERN_DEBUG "%s: TX overflow space=%d skb->len=" + "%d, w=0x%04x, ww=0x%04x\n", __func__, space, + skb->len, w, ww); + } else /* write until all byte are copied */ ww = (w + skb->len) & CMX_BUFF_MASK; dsp->tx_W = ww; diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c index 1dc21d803410..3083338716b2 100644 --- a/drivers/isdn/mISDN/dsp_core.c +++ b/drivers/isdn/mISDN/dsp_core.c @@ -191,6 +191,8 @@ dsp_rx_off_member(struct dsp *dsp) struct mISDN_ctrl_req cq; int rx_off = 1; + memset(&cq, 0, sizeof(cq)); + if (!dsp->features_rx_off) return; @@ -249,6 +251,32 @@ dsp_rx_off(struct dsp *dsp) } } +/* enable "fill empty" feature */ +static void +dsp_fill_empty(struct dsp *dsp) +{ + struct mISDN_ctrl_req cq; + + memset(&cq, 0, sizeof(cq)); + + if (!dsp->ch.peer) { + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: no peer, no fill_empty\n", + __func__); + return; + } + cq.op = MISDN_CTRL_FILL_EMPTY; + cq.p1 = 1; + if (dsp->ch.peer->ctrl(dsp->ch.peer, CONTROL_CHANNEL, &cq)) { + printk(KERN_DEBUG "%s: CONTROL_CHANNEL failed\n", + __func__); + return; + } + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: %s set fill_empty = 1\n", + __func__, dsp->name); +} + static int dsp_control_req(struct dsp *dsp, struct mISDNhead *hh, struct sk_buff *skb) { @@ -273,8 +301,9 @@ dsp_control_req(struct dsp *dsp, struct mISDNhead *hh, struct sk_buff *skb) if (dsp_debug & DEBUG_DSP_CORE) printk(KERN_DEBUG "%s: start dtmf\n", __func__); if (len == sizeof(int)) { - printk(KERN_NOTICE "changing DTMF Threshold " - "to %d\n", *((int *)data)); + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_NOTICE "changing DTMF Threshold " + "to %d\n", *((int *)data)); dsp->dtmf.treshold = (*(int *)data) * 10000; } /* init goertzel */ @@ -593,8 +622,6 @@ get_features(struct mISDNchannel *ch) struct dsp *dsp = container_of(ch, struct dsp, ch); struct mISDN_ctrl_req cq; - if (dsp_options & DSP_OPT_NOHARDWARE) - return; if (!ch->peer) { if (dsp_debug & DEBUG_DSP_CORE) printk(KERN_DEBUG "%s: no peer, no features\n", @@ -610,6 +637,10 @@ get_features(struct mISDNchannel *ch) } if (cq.op & MISDN_CTRL_RX_OFF) dsp->features_rx_off = 1; + if (cq.op & MISDN_CTRL_FILL_EMPTY) + dsp->features_fill_empty = 1; + if (dsp_options & DSP_OPT_NOHARDWARE) + return; if ((cq.op & MISDN_CTRL_HW_FEATURES_OP)) { cq.op = MISDN_CTRL_HW_FEATURES; *((u_long *)&cq.p1) = (u_long)&dsp->features; @@ -837,11 +868,14 @@ dsp_function(struct mISDNchannel *ch, struct sk_buff *skb) } if (dsp->hdlc) { /* hdlc */ - spin_lock_irqsave(&dsp_lock, flags); - if (dsp->b_active) { - skb_queue_tail(&dsp->sendq, skb); - schedule_work(&dsp->workq); + if (!dsp->b_active) { + ret = -EIO; + break; } + hh->prim = PH_DATA_REQ; + spin_lock_irqsave(&dsp_lock, flags); + skb_queue_tail(&dsp->sendq, skb); + schedule_work(&dsp->workq); spin_unlock_irqrestore(&dsp_lock, flags); return 0; } @@ -865,6 +899,9 @@ dsp_function(struct mISDNchannel *ch, struct sk_buff *skb) if (dsp->dtmf.hardware || dsp->dtmf.software) dsp_dtmf_goertzel_init(dsp); get_features(ch); + /* enable fill_empty feature */ + if (dsp->features_fill_empty) + dsp_fill_empty(dsp); /* send ph_activate */ hh->prim = PH_ACTIVATE_REQ; if (ch->peer) @@ -1105,7 +1142,7 @@ static int dsp_init(void) } else { poll = 8; while (poll <= MAX_POLL) { - tics = poll * HZ / 8000; + tics = (poll * HZ) / 8000; if (tics * 8000 == poll * HZ) { dsp_tics = tics; dsp_poll = poll; diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c index 83639be7f7ad..bf999bdc41c3 100644 --- a/drivers/isdn/mISDN/dsp_pipeline.c +++ b/drivers/isdn/mISDN/dsp_pipeline.c @@ -75,6 +75,15 @@ static struct device_attribute element_attributes[] = { __ATTR(args, 0444, attr_show_args, NULL), }; +static void +mISDN_dsp_dev_release(struct device *dev) +{ + struct dsp_element_entry *entry = + container_of(dev, struct dsp_element_entry, dev); + list_del(&entry->list); + kfree(entry); +} + int mISDN_dsp_element_register(struct mISDN_dsp_element *elem) { struct dsp_element_entry *entry; @@ -83,13 +92,14 @@ int mISDN_dsp_element_register(struct mISDN_dsp_element *elem) if (!elem) return -EINVAL; - entry = kzalloc(sizeof(struct dsp_element_entry), GFP_KERNEL); + entry = kzalloc(sizeof(struct dsp_element_entry), GFP_ATOMIC); if (!entry) return -ENOMEM; entry->elem = elem; entry->dev.class = elements_class; + entry->dev.release = mISDN_dsp_dev_release; dev_set_drvdata(&entry->dev, elem); dev_set_name(&entry->dev, elem->name); ret = device_register(&entry->dev); @@ -98,6 +108,7 @@ int mISDN_dsp_element_register(struct mISDN_dsp_element *elem) __func__, elem->name); goto err1; } + list_add_tail(&entry->list, &dsp_elements); for (i = 0; i < (sizeof(element_attributes) / sizeof(struct device_attribute)); ++i) @@ -109,14 +120,15 @@ int mISDN_dsp_element_register(struct mISDN_dsp_element *elem) goto err2; } - list_add_tail(&entry->list, &dsp_elements); - +#ifdef PIPELINE_DEBUG printk(KERN_DEBUG "%s: %s registered\n", __func__, elem->name); +#endif return 0; err2: device_unregister(&entry->dev); + return ret; err1: kfree(entry); return ret; @@ -132,11 +144,11 @@ void mISDN_dsp_element_unregister(struct mISDN_dsp_element *elem) list_for_each_entry_safe(entry, n, &dsp_elements, list) if (entry->elem == elem) { - list_del(&entry->list); device_unregister(&entry->dev); - kfree(entry); +#ifdef PIPELINE_DEBUG printk(KERN_DEBUG "%s: %s unregistered\n", __func__, elem->name); +#endif return; } printk(KERN_ERR "%s: element %s not in list.\n", __func__, elem->name); @@ -173,7 +185,9 @@ void dsp_pipeline_module_exit(void) kfree(entry); } +#ifdef PIPELINE_DEBUG printk(KERN_DEBUG "%s: dsp pipeline module exited\n", __func__); +#endif } int dsp_pipeline_init(struct dsp_pipeline *pipeline) @@ -239,7 +253,7 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) if (!len) return 0; - dup = kmalloc(len + 1, GFP_KERNEL); + dup = kmalloc(len + 1, GFP_ATOMIC); if (!dup) return 0; strcpy(dup, cfg); @@ -256,9 +270,9 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) elem = entry->elem; pipeline_entry = kmalloc(sizeof(struct - dsp_pipeline_entry), GFP_KERNEL); + dsp_pipeline_entry), GFP_ATOMIC); if (!pipeline_entry) { - printk(KERN_DEBUG "%s: failed to add " + printk(KERN_ERR "%s: failed to add " "entry to pipeline: %s (out of " "memory)\n", __func__, elem->name); incomplete = 1; @@ -286,7 +300,7 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) args : ""); #endif } else { - printk(KERN_DEBUG "%s: failed " + printk(KERN_ERR "%s: failed " "to add entry to pipeline: " "%s (new() returned NULL)\n", __func__, elem->name); @@ -301,7 +315,7 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) if (found) found = 0; else { - printk(KERN_DEBUG "%s: element not found, skipping: " + printk(KERN_ERR "%s: element not found, skipping: " "%s\n", __func__, name); incomplete = 1; } diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c index 2596fba4e614..ab1168a110ae 100644 --- a/drivers/isdn/mISDN/hwchannel.c +++ b/drivers/isdn/mISDN/hwchannel.c @@ -50,9 +50,6 @@ bchannel_bh(struct work_struct *ws) if (test_and_clear_bit(FLG_RECVQUEUE, &bch->Flags)) { while ((skb = skb_dequeue(&bch->rqueue))) { - if (bch->rcount >= 64) - printk(KERN_WARNING "B-channel %p receive " - "queue if full, but empties...\n", bch); bch->rcount--; if (likely(bch->ch.peer)) { err = bch->ch.recv(bch->ch.peer, skb); @@ -169,6 +166,25 @@ recv_Dchannel(struct dchannel *dch) EXPORT_SYMBOL(recv_Dchannel); void +recv_Echannel(struct dchannel *ech, struct dchannel *dch) +{ + struct mISDNhead *hh; + + if (ech->rx_skb->len < 2) { /* at least 2 for sapi / tei */ + dev_kfree_skb(ech->rx_skb); + ech->rx_skb = NULL; + return; + } + hh = mISDN_HEAD_P(ech->rx_skb); + hh->prim = PH_DATA_E_IND; + hh->id = get_sapi_tei(ech->rx_skb->data); + skb_queue_tail(&dch->rqueue, ech->rx_skb); + ech->rx_skb = NULL; + schedule_event(dch, FLG_RECVQUEUE); +} +EXPORT_SYMBOL(recv_Echannel); + +void recv_Bchannel(struct bchannel *bch) { struct mISDNhead *hh; @@ -177,8 +193,10 @@ recv_Bchannel(struct bchannel *bch) hh->prim = PH_DATA_IND; hh->id = MISDN_ID_ANY; if (bch->rcount >= 64) { - dev_kfree_skb(bch->rx_skb); - bch->rx_skb = NULL; + printk(KERN_WARNING "B-channel %p receive queue overflow, " + "fushing!\n", bch); + skb_queue_purge(&bch->rqueue); + bch->rcount = 0; return; } bch->rcount++; @@ -200,8 +218,10 @@ void recv_Bchannel_skb(struct bchannel *bch, struct sk_buff *skb) { if (bch->rcount >= 64) { - dev_kfree_skb(skb); - return; + printk(KERN_WARNING "B-channel %p receive queue overflow, " + "fushing!\n", bch); + skb_queue_purge(&bch->rqueue); + bch->rcount = 0; } bch->rcount++; skb_queue_tail(&bch->rqueue, skb); @@ -245,8 +265,12 @@ confirm_Bsend(struct bchannel *bch) { struct sk_buff *skb; - if (bch->rcount >= 64) - return; + if (bch->rcount >= 64) { + printk(KERN_WARNING "B-channel %p receive queue overflow, " + "fushing!\n", bch); + skb_queue_purge(&bch->rqueue); + bch->rcount = 0; + } skb = _alloc_mISDN_skb(PH_DATA_CNF, mISDN_HEAD_ID(bch->tx_skb), 0, NULL, GFP_ATOMIC); if (!skb) { diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c index 0884dd6892f8..abe574989572 100644 --- a/drivers/isdn/mISDN/l1oip_core.c +++ b/drivers/isdn/mISDN/l1oip_core.c @@ -777,6 +777,8 @@ fail: static void l1oip_socket_close(struct l1oip *hc) { + struct dchannel *dch = hc->chan[hc->d_idx].dch; + /* kill thread */ if (hc->socket_thread) { if (debug & DEBUG_L1OIP_SOCKET) @@ -785,6 +787,16 @@ l1oip_socket_close(struct l1oip *hc) send_sig(SIGTERM, hc->socket_thread, 0); wait_for_completion(&hc->socket_complete); } + + /* if active, we send up a PH_DEACTIVATE and deactivate */ + if (test_bit(FLG_ACTIVE, &dch->Flags)) { + if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET)) + printk(KERN_DEBUG "%s: interface become deactivated " + "due to timeout\n", __func__); + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0, + NULL, GFP_ATOMIC); + } } static int @@ -944,7 +956,8 @@ channel_dctrl(struct dchannel *dch, struct mISDN_ctrl_req *cq) switch (cq->op) { case MISDN_CTRL_GETOP: - cq->op = MISDN_CTRL_SETPEER | MISDN_CTRL_UNSETPEER; + cq->op = MISDN_CTRL_SETPEER | MISDN_CTRL_UNSETPEER + | MISDN_CTRL_GETPEER; break; case MISDN_CTRL_SETPEER: hc->remoteip = (u32)cq->p1; @@ -964,6 +977,13 @@ channel_dctrl(struct dchannel *dch, struct mISDN_ctrl_req *cq) hc->remoteip = 0; l1oip_socket_open(hc); break; + case MISDN_CTRL_GETPEER: + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: getting ip address.\n", + __func__); + cq->p1 = hc->remoteip; + cq->p2 = hc->remoteport | (hc->localport << 16); + break; default: printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op); @@ -1413,7 +1433,8 @@ init_card(struct l1oip *hc, int pri, int bundle) hc->chan[i + ch].bch = bch; set_channelmap(bch->nr, dch->dev.channelmap); } - ret = mISDN_register_device(&dch->dev, hc->name); + /* TODO: create a parent device for this driver */ + ret = mISDN_register_device(&dch->dev, NULL, hc->name); if (ret) return ret; hc->registered = 1; diff --git a/drivers/isdn/mISDN/layer1.c b/drivers/isdn/mISDN/layer1.c index b73e952d12cf..e826eeb1ecec 100644 --- a/drivers/isdn/mISDN/layer1.c +++ b/drivers/isdn/mISDN/layer1.c @@ -101,7 +101,7 @@ l1m_debug(struct FsmInst *fi, char *fmt, ...) va_list va; va_start(va, fmt); - printk(KERN_DEBUG "%s: ", l1->dch->dev.name); + printk(KERN_DEBUG "%s: ", dev_name(&l1->dch->dev.dev)); vprintk(fmt, va); printk("\n"); va_end(va); diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 37a2de18cfd0..508945d1b9c1 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -381,7 +381,7 @@ data_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) memcpy(di.channelmap, dev->channelmap, sizeof(di.channelmap)); di.nrbchan = dev->nrbchan; - strcpy(di.name, dev->name); + strcpy(di.name, dev_name(&dev->dev)); if (copy_to_user((void __user *)arg, &di, sizeof(di))) err = -EFAULT; } else @@ -460,6 +460,8 @@ data_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) { struct sockaddr_mISDN *maddr = (struct sockaddr_mISDN *) addr; struct sock *sk = sock->sk; + struct hlist_node *node; + struct sock *csk; int err = 0; if (*debug & DEBUG_SOCKET) @@ -480,6 +482,26 @@ data_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) err = -ENODEV; goto done; } + + if (sk->sk_protocol < ISDN_P_B_START) { + read_lock_bh(&data_sockets.lock); + sk_for_each(csk, node, &data_sockets.head) { + if (sk == csk) + continue; + if (_pms(csk)->dev != _pms(sk)->dev) + continue; + if (csk->sk_protocol >= ISDN_P_B_START) + continue; + if (IS_ISDN_P_TE(csk->sk_protocol) + == IS_ISDN_P_TE(sk->sk_protocol)) + continue; + read_unlock_bh(&data_sockets.lock); + err = -EBUSY; + goto done; + } + read_unlock_bh(&data_sockets.lock); + } + _pms(sk)->ch.send = mISDN_send; _pms(sk)->ch.ctrl = mISDN_ctrl; @@ -639,12 +661,27 @@ base_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) memcpy(di.channelmap, dev->channelmap, sizeof(di.channelmap)); di.nrbchan = dev->nrbchan; - strcpy(di.name, dev->name); + strcpy(di.name, dev_name(&dev->dev)); if (copy_to_user((void __user *)arg, &di, sizeof(di))) err = -EFAULT; } else err = -ENODEV; break; + case IMSETDEVNAME: + { + struct mISDN_devrename dn; + if (copy_from_user(&dn, (void __user *)arg, + sizeof(dn))) { + err = -EFAULT; + break; + } + dev = get_mdevice(dn.id); + if (dev) + err = device_rename(&dev->dev, dn.name); + else + err = -ENODEV; + } + break; default: err = -EINVAL; } diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c index d55b14ae4e99..e2f45019ebf0 100644 --- a/drivers/isdn/mISDN/stack.c +++ b/drivers/isdn/mISDN/stack.c @@ -172,7 +172,8 @@ send_msg_to_layer(struct mISDNstack *st, struct sk_buff *skb) else printk(KERN_WARNING "%s: dev(%s) prim(%x) id(%x) no channel\n", - __func__, st->dev->name, hh->prim, hh->id); + __func__, dev_name(&st->dev->dev), hh->prim, + hh->id); } else if (lm == 0x8) { WARN_ON(lm == 0x8); ch = get_channel4id(st, hh->id); @@ -181,11 +182,12 @@ send_msg_to_layer(struct mISDNstack *st, struct sk_buff *skb) else printk(KERN_WARNING "%s: dev(%s) prim(%x) id(%x) no channel\n", - __func__, st->dev->name, hh->prim, hh->id); + __func__, dev_name(&st->dev->dev), hh->prim, + hh->id); } else { /* broadcast not handled yet */ printk(KERN_WARNING "%s: dev(%s) prim %x not delivered\n", - __func__, st->dev->name, hh->prim); + __func__, dev_name(&st->dev->dev), hh->prim); } return -ESRCH; } @@ -209,7 +211,8 @@ mISDNStackd(void *data) unlock_kernel(); #endif if (*debug & DEBUG_MSG_THREAD) - printk(KERN_DEBUG "mISDNStackd %s started\n", st->dev->name); + printk(KERN_DEBUG "mISDNStackd %s started\n", + dev_name(&st->dev->dev)); if (st->notify != NULL) { complete(st->notify); @@ -245,7 +248,7 @@ mISDNStackd(void *data) printk(KERN_DEBUG "%s: %s prim(%x) id(%x) " "send call(%d)\n", - __func__, st->dev->name, + __func__, dev_name(&st->dev->dev), mISDN_HEAD_PRIM(skb), mISDN_HEAD_ID(skb), err); dev_kfree_skb(skb); @@ -288,7 +291,7 @@ mISDNStackd(void *data) mISDN_STACK_ACTION_MASK)); if (*debug & DEBUG_MSG_THREAD) printk(KERN_DEBUG "%s: %s wake status %08lx\n", - __func__, st->dev->name, st->status); + __func__, dev_name(&st->dev->dev), st->status); test_and_set_bit(mISDN_STACK_ACTIVE, &st->status); test_and_clear_bit(mISDN_STACK_WAKEUP, &st->status); @@ -303,15 +306,16 @@ mISDNStackd(void *data) #ifdef MISDN_MSG_STATS printk(KERN_DEBUG "mISDNStackd daemon for %s proceed %d " "msg %d sleep %d stopped\n", - st->dev->name, st->msg_cnt, st->sleep_cnt, st->stopped_cnt); + dev_name(&st->dev->dev), st->msg_cnt, st->sleep_cnt, + st->stopped_cnt); printk(KERN_DEBUG "mISDNStackd daemon for %s utime(%ld) stime(%ld)\n", - st->dev->name, st->thread->utime, st->thread->stime); + dev_name(&st->dev->dev), st->thread->utime, st->thread->stime); printk(KERN_DEBUG "mISDNStackd daemon for %s nvcsw(%ld) nivcsw(%ld)\n", - st->dev->name, st->thread->nvcsw, st->thread->nivcsw); + dev_name(&st->dev->dev), st->thread->nvcsw, st->thread->nivcsw); printk(KERN_DEBUG "mISDNStackd daemon for %s killed now\n", - st->dev->name); + dev_name(&st->dev->dev)); #endif test_and_set_bit(mISDN_STACK_KILLED, &st->status); test_and_clear_bit(mISDN_STACK_RUNNING, &st->status); @@ -401,15 +405,16 @@ create_stack(struct mISDNdevice *dev) newst->own.send = mISDN_queue_message; newst->own.recv = mISDN_queue_message; if (*debug & DEBUG_CORE_FUNC) - printk(KERN_DEBUG "%s: st(%s)\n", __func__, newst->dev->name); + printk(KERN_DEBUG "%s: st(%s)\n", __func__, + dev_name(&newst->dev->dev)); newst->notify = &done; newst->thread = kthread_run(mISDNStackd, (void *)newst, "mISDN_%s", - newst->dev->name); + dev_name(&newst->dev->dev)); if (IS_ERR(newst->thread)) { err = PTR_ERR(newst->thread); printk(KERN_ERR "mISDN:cannot create kernel thread for %s (%d)\n", - newst->dev->name, err); + dev_name(&newst->dev->dev), err); delete_teimanager(dev->teimgr); kfree(newst); } else @@ -428,29 +433,21 @@ connect_layer1(struct mISDNdevice *dev, struct mISDNchannel *ch, if (*debug & DEBUG_CORE_FUNC) printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n", - __func__, dev->name, protocol, adr->dev, adr->channel, - adr->sapi, adr->tei); + __func__, dev_name(&dev->dev), protocol, adr->dev, + adr->channel, adr->sapi, adr->tei); switch (protocol) { case ISDN_P_NT_S0: case ISDN_P_NT_E1: case ISDN_P_TE_S0: case ISDN_P_TE_E1: -#ifdef PROTOCOL_CHECK - /* this should be enhanced */ - if (!list_empty(&dev->D.st->layer2) - && dev->D.protocol != protocol) - return -EBUSY; - if (!hlist_empty(&dev->D.st->l1sock.head) - && dev->D.protocol != protocol) - return -EBUSY; -#endif ch->recv = mISDN_queue_message; ch->peer = &dev->D.st->own; ch->st = dev->D.st; rq.protocol = protocol; - rq.adr.channel = 0; + rq.adr.channel = adr->channel; err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq); - printk(KERN_DEBUG "%s: ret 1 %d\n", __func__, err); + printk(KERN_DEBUG "%s: ret %d (dev %d)\n", __func__, err, + dev->id); if (err) return err; write_lock_bh(&dev->D.st->l1sock.lock); @@ -473,7 +470,7 @@ connect_Bstack(struct mISDNdevice *dev, struct mISDNchannel *ch, if (*debug & DEBUG_CORE_FUNC) printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n", - __func__, dev->name, protocol, + __func__, dev_name(&dev->dev), protocol, adr->dev, adr->channel, adr->sapi, adr->tei); ch->st = dev->D.st; @@ -529,7 +526,7 @@ create_l2entity(struct mISDNdevice *dev, struct mISDNchannel *ch, if (*debug & DEBUG_CORE_FUNC) printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n", - __func__, dev->name, protocol, + __func__, dev_name(&dev->dev), protocol, adr->dev, adr->channel, adr->sapi, adr->tei); rq.protocol = ISDN_P_TE_S0; @@ -541,15 +538,6 @@ create_l2entity(struct mISDNdevice *dev, struct mISDNchannel *ch, if (dev->Dprotocols & (1 << ISDN_P_NT_E1)) rq.protocol = ISDN_P_NT_E1; case ISDN_P_LAPD_TE: -#ifdef PROTOCOL_CHECK - /* this should be enhanced */ - if (!list_empty(&dev->D.st->layer2) - && dev->D.protocol != protocol) - return -EBUSY; - if (!hlist_empty(&dev->D.st->l1sock.head) - && dev->D.protocol != protocol) - return -EBUSY; -#endif ch->recv = mISDN_queue_message; ch->peer = &dev->D.st->own; ch->st = dev->D.st; @@ -590,7 +578,7 @@ delete_channel(struct mISDNchannel *ch) } if (*debug & DEBUG_CORE_FUNC) printk(KERN_DEBUG "%s: st(%s) protocol(%x)\n", __func__, - ch->st->dev->name, ch->protocol); + dev_name(&ch->st->dev->dev), ch->protocol); if (ch->protocol >= ISDN_P_B_START) { if (ch->peer) { ch->peer->ctrl(ch->peer, CLOSE_CHANNEL, NULL); @@ -643,7 +631,7 @@ delete_stack(struct mISDNdevice *dev) if (*debug & DEBUG_CORE_FUNC) printk(KERN_DEBUG "%s: st(%s)\n", __func__, - st->dev->name); + dev_name(&st->dev->dev)); if (dev->teimgr) delete_teimanager(dev->teimgr); if (st->thread) { diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c index 5c43d19e7c11..b452dead8fd0 100644 --- a/drivers/isdn/mISDN/tei.c +++ b/drivers/isdn/mISDN/tei.c @@ -968,9 +968,9 @@ create_teimgr(struct manager *mgr, struct channel_req *crq) if (*debug & DEBUG_L2_TEI) printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n", - __func__, mgr->ch.st->dev->name, crq->protocol, - crq->adr.dev, crq->adr.channel, crq->adr.sapi, - crq->adr.tei); + __func__, dev_name(&mgr->ch.st->dev->dev), + crq->protocol, crq->adr.dev, crq->adr.channel, + crq->adr.sapi, crq->adr.tei); if (crq->adr.sapi != 0) /* not supported yet */ return -EINVAL; if (crq->adr.tei > GROUP_TEI) |
