diff options
Diffstat (limited to 'drivers/isdn/hisax/elsa_ser.c')
-rw-r--r-- | drivers/isdn/hisax/elsa_ser.c | 178 |
1 files changed, 89 insertions, 89 deletions
diff --git a/drivers/isdn/hisax/elsa_ser.c b/drivers/isdn/hisax/elsa_ser.c index 3fa9f6171095..d4c98d330bfe 100644 --- a/drivers/isdn/hisax/elsa_ser.c +++ b/drivers/isdn/hisax/elsa_ser.c @@ -12,9 +12,9 @@ #include <linux/slab.h> #define MAX_MODEM_BUF 256 -#define WAKEUP_CHARS (MAX_MODEM_BUF/2) +#define WAKEUP_CHARS (MAX_MODEM_BUF / 2) #define RS_ISR_PASS_LIMIT 256 -#define BASE_BAUD ( 1843200 / 16 ) +#define BASE_BAUD (1843200 / 16) //#define SERIAL_DEBUG_OPEN 1 //#define SERIAL_DEBUG_INTR 1 @@ -27,8 +27,8 @@ #ifdef SERIAL_DEBUG_REG static u_char deb[32]; -const char *ModemIn[] = {"RBR","IER","IIR","LCR","MCR","LSR","MSR","SCR"}; -const char *ModemOut[] = {"THR","IER","FCR","LCR","MCR","LSR","MSR","SCR"}; +const char *ModemIn[] = {"RBR", "IER", "IIR", "LCR", "MCR", "LSR", "MSR", "SCR"}; +const char *ModemOut[] = {"THR", "IER", "FCR", "LCR", "MCR", "LSR", "MSR", "SCR"}; #endif static char *MInit_1 = "AT&F&C1E0&D2\r\0"; @@ -49,8 +49,8 @@ static inline unsigned int serial_in(struct IsdnCardState *cs, int offset) { #ifdef SERIAL_DEBUG_REG u_int val = inb(cs->hw.elsa.base + 8 + offset); - debugl1(cs,"in %s %02x",ModemIn[offset], val); - return(val); + debugl1(cs, "in %s %02x", ModemIn[offset], val); + return (val); #else return inb(cs->hw.elsa.base + 8 + offset); #endif @@ -61,12 +61,12 @@ static inline unsigned int serial_inp(struct IsdnCardState *cs, int offset) #ifdef SERIAL_DEBUG_REG #ifdef ELSA_SERIAL_NOPAUSE_IO u_int val = inb(cs->hw.elsa.base + 8 + offset); - debugl1(cs,"inp %s %02x",ModemIn[offset], val); + debugl1(cs, "inp %s %02x", ModemIn[offset], val); #else u_int val = inb_p(cs->hw.elsa.base + 8 + offset); - debugl1(cs,"inP %s %02x",ModemIn[offset], val); + debugl1(cs, "inP %s %02x", ModemIn[offset], val); #endif - return(val); + return (val); #else #ifdef ELSA_SERIAL_NOPAUSE_IO return inb(cs->hw.elsa.base + 8 + offset); @@ -79,7 +79,7 @@ static inline unsigned int serial_inp(struct IsdnCardState *cs, int offset) static inline void serial_out(struct IsdnCardState *cs, int offset, int value) { #ifdef SERIAL_DEBUG_REG - debugl1(cs,"out %s %02x",ModemOut[offset], value); + debugl1(cs, "out %s %02x", ModemOut[offset], value); #endif outb(value, cs->hw.elsa.base + 8 + offset); } @@ -89,15 +89,15 @@ static inline void serial_outp(struct IsdnCardState *cs, int offset, { #ifdef SERIAL_DEBUG_REG #ifdef ELSA_SERIAL_NOPAUSE_IO - debugl1(cs,"outp %s %02x",ModemOut[offset], value); + debugl1(cs, "outp %s %02x", ModemOut[offset], value); #else - debugl1(cs,"outP %s %02x",ModemOut[offset], value); + debugl1(cs, "outP %s %02x", ModemOut[offset], value); #endif #endif #ifdef ELSA_SERIAL_NOPAUSE_IO outb(value, cs->hw.elsa.base + 8 + offset); #else - outb_p(value, cs->hw.elsa.base + 8 + offset); + outb_p(value, cs->hw.elsa.base + 8 + offset); #endif } @@ -131,7 +131,7 @@ static void change_speed(struct IsdnCardState *cs, int baud) cs->hw.elsa.IER |= UART_IER_MSI; serial_outp(cs, UART_IER, cs->hw.elsa.IER); - debugl1(cs,"modem quot=0x%x", quot); + debugl1(cs, "modem quot=0x%x", quot); serial_outp(cs, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */ serial_outp(cs, UART_DLL, quot & 0xff); /* LS of divisor */ serial_outp(cs, UART_DLM, quot >> 8); /* MS of divisor */ @@ -141,7 +141,7 @@ static void change_speed(struct IsdnCardState *cs, int baud) static int mstartup(struct IsdnCardState *cs) { - int retval=0; + int retval = 0; /* * Clear the FIFO buffers and disable them @@ -158,7 +158,7 @@ static int mstartup(struct IsdnCardState *cs) retval = -ENODEV; goto errout; } - + /* * Clear the interrupt registers. */ @@ -167,20 +167,20 @@ static int mstartup(struct IsdnCardState *cs) (void) serial_inp(cs, UART_MSR); /* - * Now, initialize the UART + * Now, initialize the UART */ serial_outp(cs, UART_LCR, UART_LCR_WLEN8); /* reset DLAB */ cs->hw.elsa.MCR = 0; cs->hw.elsa.MCR = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2; serial_outp(cs, UART_MCR, cs->hw.elsa.MCR); - + /* * Finally, enable interrupts */ cs->hw.elsa.IER = UART_IER_MSI | UART_IER_RLSI | UART_IER_RDI; serial_outp(cs, UART_IER, cs->hw.elsa.IER); /* enable interrupts */ - + /* * And clear the interrupt registers again for luck. */ @@ -190,7 +190,7 @@ static int mstartup(struct IsdnCardState *cs) (void)serial_inp(cs, UART_MSR); cs->hw.elsa.transcnt = cs->hw.elsa.transp = 0; - cs->hw.elsa.rcvcnt = cs->hw.elsa.rcvp =0; + cs->hw.elsa.rcvcnt = cs->hw.elsa.rcvp = 0; /* * and set the speed of the serial port @@ -211,7 +211,7 @@ static void mshutdown(struct IsdnCardState *cs) #ifdef SERIAL_DEBUG_OPEN printk(KERN_DEBUG"Shutting down serial ...."); #endif - + /* * clear delta_msr_wait queue to avoid mem leaks: we may free the irq * here so the queue might never be waken up @@ -220,17 +220,17 @@ static void mshutdown(struct IsdnCardState *cs) cs->hw.elsa.IER = 0; serial_outp(cs, UART_IER, 0x00); /* disable all intrs */ cs->hw.elsa.MCR &= ~UART_MCR_OUT2; - + /* disable break condition */ serial_outp(cs, UART_LCR, serial_inp(cs, UART_LCR) & ~UART_LCR_SBC); - - cs->hw.elsa.MCR &= ~(UART_MCR_DTR|UART_MCR_RTS); + + cs->hw.elsa.MCR &= ~(UART_MCR_DTR | UART_MCR_RTS); serial_outp(cs, UART_MCR, cs->hw.elsa.MCR); - /* disable FIFO's */ + /* disable FIFO's */ serial_outp(cs, UART_FCR, (UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT)); serial_inp(cs, UART_RX); /* read data port to reset things */ - + #ifdef SERIAL_DEBUG_OPEN printk(" done\n"); #endif @@ -238,10 +238,10 @@ static void mshutdown(struct IsdnCardState *cs) static inline int write_modem(struct BCState *bcs) { - int ret=0; + int ret = 0; struct IsdnCardState *cs = bcs->cs; int count, len, fp; - + if (!bcs->tx_skb) return 0; if (bcs->tx_skb->len <= 0) @@ -250,7 +250,7 @@ write_modem(struct BCState *bcs) { if (len > MAX_MODEM_BUF - cs->hw.elsa.transcnt) len = MAX_MODEM_BUF - cs->hw.elsa.transcnt; fp = cs->hw.elsa.transcnt + cs->hw.elsa.transp; - fp &= (MAX_MODEM_BUF -1); + fp &= (MAX_MODEM_BUF - 1); count = len; if (count > MAX_MODEM_BUF - fp) { count = MAX_MODEM_BUF - fp; @@ -267,25 +267,25 @@ write_modem(struct BCState *bcs) { skb_pull(bcs->tx_skb, count); cs->hw.elsa.transcnt += count; ret += count; - - if (cs->hw.elsa.transcnt && + + if (cs->hw.elsa.transcnt && !(cs->hw.elsa.IER & UART_IER_THRI)) { - cs->hw.elsa.IER |= UART_IER_THRI; + cs->hw.elsa.IER |= UART_IER_THRI; serial_outp(cs, UART_IER, cs->hw.elsa.IER); } - return(ret); + return (ret); } static inline void modem_fill(struct BCState *bcs) { - + if (bcs->tx_skb) { if (bcs->tx_skb->len) { write_modem(bcs); return; } else { - if (test_bit(FLG_LLI_L1WAKEUP,&bcs->st->lli.flag) && - (PACKET_NOACK != bcs->tx_skb->pkt_type)) { + if (test_bit(FLG_LLI_L1WAKEUP, &bcs->st->lli.flag) && + (PACKET_NOACK != bcs->tx_skb->pkt_type)) { u_long flags; spin_lock_irqsave(&bcs->aclock, flags); bcs->ackcnt += bcs->hw.hscx.count; @@ -322,7 +322,7 @@ static inline void receive_chars(struct IsdnCardState *cs, #endif if (*status & (UART_LSR_BI | UART_LSR_PE | UART_LSR_FE | UART_LSR_OE)) { - + #ifdef SERIAL_DEBUG_INTR printk("handling exept...."); #endif @@ -333,9 +333,9 @@ static inline void receive_chars(struct IsdnCardState *cs, if (!(skb = dev_alloc_skb(cs->hw.elsa.rcvcnt))) printk(KERN_WARNING "ElsaSER: receive out of memory\n"); else { - memcpy(skb_put(skb, cs->hw.elsa.rcvcnt), cs->hw.elsa.rcvbuf, - cs->hw.elsa.rcvcnt); - skb_queue_tail(& cs->hw.elsa.bcs->rqueue, skb); + memcpy(skb_put(skb, cs->hw.elsa.rcvcnt), cs->hw.elsa.rcvbuf, + cs->hw.elsa.rcvcnt); + skb_queue_tail(&cs->hw.elsa.bcs->rqueue, skb); } schedule_event(cs->hw.elsa.bcs, B_RCVBUFREADY); } else { @@ -352,10 +352,10 @@ static inline void receive_chars(struct IsdnCardState *cs, static inline void transmit_chars(struct IsdnCardState *cs, int *intr_done) { int count; - - debugl1(cs, "transmit_chars: p(%x) cnt(%x)", cs->hw.elsa.transp, + + debugl1(cs, "transmit_chars: p(%x) cnt(%x)", cs->hw.elsa.transp, cs->hw.elsa.transcnt); - + if (cs->hw.elsa.transcnt <= 0) { cs->hw.elsa.IER &= ~UART_IER_THRI; serial_out(cs, UART_IER, cs->hw.elsa.IER); @@ -365,11 +365,11 @@ static inline void transmit_chars(struct IsdnCardState *cs, int *intr_done) do { serial_outp(cs, UART_TX, cs->hw.elsa.transbuf[cs->hw.elsa.transp++]); if (cs->hw.elsa.transp >= MAX_MODEM_BUF) - cs->hw.elsa.transp=0; + cs->hw.elsa.transp = 0; if (--cs->hw.elsa.transcnt <= 0) break; } while (--count > 0); - if ((cs->hw.elsa.transcnt < WAKEUP_CHARS) && (cs->hw.elsa.MFlag==2)) + if ((cs->hw.elsa.transcnt < WAKEUP_CHARS) && (cs->hw.elsa.MFlag == 2)) modem_fill(cs->hw.elsa.bcs); #ifdef SERIAL_DEBUG_INTR @@ -388,14 +388,14 @@ static void rs_interrupt_elsa(struct IsdnCardState *cs) { int status, iir, msr; int pass_counter = 0; - + #ifdef SERIAL_DEBUG_INTR printk(KERN_DEBUG "rs_interrupt_single(%d)...", cs->irq); #endif do { status = serial_inp(cs, UART_LSR); - debugl1(cs,"rs LSR %02x", status); + debugl1(cs, "rs LSR %02x", status); #ifdef SERIAL_DEBUG_INTR printk("status = %x...", status); #endif @@ -408,10 +408,10 @@ static void rs_interrupt_elsa(struct IsdnCardState *cs) break; } iir = serial_inp(cs, UART_IIR); - debugl1(cs,"rs IIR %02x", iir); + debugl1(cs, "rs IIR %02x", iir); if ((iir & 0xf) == 0) { msr = serial_inp(cs, UART_MSR); - debugl1(cs,"rs MSR %02x", msr); + debugl1(cs, "rs MSR %02x", msr); } } while (!(iir & UART_IIR_NO_INT)); #ifdef SERIAL_DEBUG_INTR @@ -447,14 +447,14 @@ static void modem_write_cmd(struct IsdnCardState *cs, u_char *buf, int len) { int count, fp; u_char *msg = buf; - + if (!len) return; if (len > (MAX_MODEM_BUF - cs->hw.elsa.transcnt)) { return; } fp = cs->hw.elsa.transcnt + cs->hw.elsa.transp; - fp &= (MAX_MODEM_BUF -1); + fp &= (MAX_MODEM_BUF - 1); count = len; if (count > MAX_MODEM_BUF - fp) { count = MAX_MODEM_BUF - fp; @@ -466,7 +466,7 @@ modem_write_cmd(struct IsdnCardState *cs, u_char *buf, int len) { } memcpy(cs->hw.elsa.transbuf + fp, msg, count); cs->hw.elsa.transcnt += count; - if (cs->hw.elsa.transcnt && + if (cs->hw.elsa.transcnt && !(cs->hw.elsa.IER & UART_IER_THRI)) { cs->hw.elsa.IER |= UART_IER_THRI; serial_outp(cs, UART_IER, cs->hw.elsa.IER); @@ -480,43 +480,43 @@ modem_set_init(struct IsdnCardState *cs) { #define RCV_DELAY 20 modem_write_cmd(cs, MInit_1, strlen(MInit_1)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); modem_write_cmd(cs, MInit_2, strlen(MInit_2)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); modem_write_cmd(cs, MInit_3, strlen(MInit_3)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); modem_write_cmd(cs, MInit_4, strlen(MInit_4)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); modem_write_cmd(cs, MInit_5, strlen(MInit_5)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); modem_write_cmd(cs, MInit_6, strlen(MInit_6)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); modem_write_cmd(cs, MInit_7, strlen(MInit_7)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); @@ -529,7 +529,7 @@ modem_set_dial(struct IsdnCardState *cs, int outgoing) { modem_write_cmd(cs, MInit_speed28800, strlen(MInit_speed28800)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); @@ -538,7 +538,7 @@ modem_set_dial(struct IsdnCardState *cs, int outgoing) { else modem_write_cmd(cs, MInit_dialin, strlen(MInit_dialin)); timeout = 1000; - while(timeout-- && cs->hw.elsa.transcnt) + while (timeout-- && cs->hw.elsa.transcnt) udelay(1000); debugl1(cs, "msi tout=%d", timeout); mdelay(RCV_DELAY); @@ -568,15 +568,15 @@ modem_l2l1(struct PStack *st, int pr, void *arg) set_arcofi(bcs->cs, st->l1.bc); mstartup(bcs->cs); modem_set_dial(bcs->cs, test_bit(FLG_ORIG, &st->l2.flag)); - bcs->cs->hw.elsa.MFlag=2; + bcs->cs->hw.elsa.MFlag = 2; } else if (pr == (PH_DEACTIVATE | REQUEST)) { test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag); bcs->cs->dc.isac.arcofi_bc = st->l1.bc; arcofi_fsm(bcs->cs, ARCOFI_START, &ARCOFI_XOP_0); interruptible_sleep_on(&bcs->cs->dc.isac.arcofi_wait); - bcs->cs->hw.elsa.MFlag=1; + bcs->cs->hw.elsa.MFlag = 1; } else { - printk(KERN_WARNING"ElsaSer: unknown pr %x\n", pr); + printk(KERN_WARNING "ElsaSer: unknown pr %x\n", pr); } } @@ -586,27 +586,27 @@ setstack_elsa(struct PStack *st, struct BCState *bcs) bcs->channel = st->l1.bc; switch (st->l1.mode) { - case L1_MODE_HDLC: - case L1_MODE_TRANS: - if (open_hscxstate(st->l1.hardware, bcs)) - return (-1); - st->l2.l2l1 = hscx_l2l1; - break; - case L1_MODE_MODEM: - bcs->mode = L1_MODE_MODEM; - if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) { - bcs->hw.hscx.rcvbuf = bcs->cs->hw.elsa.rcvbuf; - skb_queue_head_init(&bcs->rqueue); - skb_queue_head_init(&bcs->squeue); - } - bcs->tx_skb = NULL; - test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); - bcs->event = 0; - bcs->hw.hscx.rcvidx = 0; - bcs->tx_cnt = 0; - bcs->cs->hw.elsa.bcs = bcs; - st->l2.l2l1 = modem_l2l1; - break; + case L1_MODE_HDLC: + case L1_MODE_TRANS: + if (open_hscxstate(st->l1.hardware, bcs)) + return (-1); + st->l2.l2l1 = hscx_l2l1; + break; + case L1_MODE_MODEM: + bcs->mode = L1_MODE_MODEM; + if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) { + bcs->hw.hscx.rcvbuf = bcs->cs->hw.elsa.rcvbuf; + skb_queue_head_init(&bcs->rqueue); + skb_queue_head_init(&bcs->squeue); + } + bcs->tx_skb = NULL; + test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); + bcs->event = 0; + bcs->hw.hscx.rcvidx = 0; + bcs->tx_cnt = 0; + bcs->cs->hw.elsa.bcs = bcs; + st->l2.l2l1 = modem_l2l1; + break; } st->l1.bcs = bcs; setstack_manager(st); @@ -623,15 +623,15 @@ init_modem(struct IsdnCardState *cs) { cs->bcs[0].BC_Close = close_elsastate; cs->bcs[1].BC_Close = close_elsastate; if (!(cs->hw.elsa.rcvbuf = kmalloc(MAX_MODEM_BUF, - GFP_ATOMIC))) { + GFP_ATOMIC))) { printk(KERN_WARNING - "Elsa: No modem mem hw.elsa.rcvbuf\n"); + "Elsa: No modem mem hw.elsa.rcvbuf\n"); return; } if (!(cs->hw.elsa.transbuf = kmalloc(MAX_MODEM_BUF, - GFP_ATOMIC))) { + GFP_ATOMIC))) { printk(KERN_WARNING - "Elsa: No modem mem hw.elsa.transbuf\n"); + "Elsa: No modem mem hw.elsa.transbuf\n"); kfree(cs->hw.elsa.rcvbuf); cs->hw.elsa.rcvbuf = NULL; return; |