diff options
Diffstat (limited to 'drivers/media/dvb/frontends/bcm3510.c')
| -rw-r--r-- | drivers/media/dvb/frontends/bcm3510.c | 856 |
1 files changed, 0 insertions, 856 deletions
diff --git a/drivers/media/dvb/frontends/bcm3510.c b/drivers/media/dvb/frontends/bcm3510.c deleted file mode 100644 index 033cd7ad3ca2..000000000000 --- a/drivers/media/dvb/frontends/bcm3510.c +++ /dev/null @@ -1,856 +0,0 @@ -/* - * Support for the Broadcom BCM3510 ATSC demodulator (1st generation Air2PC) - * - * Copyright (C) 2001-5, B2C2 inc. - * - * GPL/Linux driver written by Patrick Boettcher <patrick.boettcher@desy.de> - * - * This driver is "hard-coded" to be used with the 1st generation of - * Technisat/B2C2's Air2PC ATSC PCI/USB cards/boxes. The pll-programming - * (Panasonic CT10S) is located here, which is actually wrong. Unless there is - * another device with a BCM3510, this is no problem. - * - * The driver works also with QAM64 DVB-C, but had an unreasonable high - * UNC. (Tested with the Air2PC ATSC 1st generation) - * - * You'll need a firmware for this driver in order to get it running. It is - * called "dvb-fe-bcm3510-01.fw". - * - * 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 of the License, 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. - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/device.h> -#include <linux/firmware.h> -#include <linux/jiffies.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/mutex.h> - -#include "dvb_frontend.h" -#include "bcm3510.h" -#include "bcm3510_priv.h" - -struct bcm3510_state { - - struct i2c_adapter* i2c; - const struct bcm3510_config* config; - struct dvb_frontend frontend; - - /* demodulator private data */ - struct mutex hab_mutex; - u8 firmware_loaded:1; - - unsigned long next_status_check; - unsigned long status_check_interval; - struct bcm3510_hab_cmd_status1 status1; - struct bcm3510_hab_cmd_status2 status2; -}; - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "set debugging level (1=info,2=i2c (|-able))."); - -#define dprintk(level,x...) if (level & debug) printk(x) -#define dbufout(b,l,m) {\ - int i; \ - for (i = 0; i < l; i++) \ - m("%02x ",b[i]); \ -} -#define deb_info(args...) dprintk(0x01,args) -#define deb_i2c(args...) dprintk(0x02,args) -#define deb_hab(args...) dprintk(0x04,args) - -/* transfer functions */ -static int bcm3510_writebytes (struct bcm3510_state *state, u8 reg, u8 *buf, u8 len) -{ - u8 b[256]; - int err; - struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = b, .len = len + 1 }; - - b[0] = reg; - memcpy(&b[1],buf,len); - - deb_i2c("i2c wr %02x: ",reg); - dbufout(buf,len,deb_i2c); - deb_i2c("\n"); - - if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) { - - deb_info("%s: i2c write error (addr %02x, reg %02x, err == %i)\n", - __func__, state->config->demod_address, reg, err); - return -EREMOTEIO; - } - - return 0; -} - -static int bcm3510_readbytes (struct bcm3510_state *state, u8 reg, u8 *buf, u8 len) -{ - struct i2c_msg msg[] = { - { .addr = state->config->demod_address, .flags = 0, .buf = ®, .len = 1 }, - { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = buf, .len = len } - }; - int err; - - memset(buf,0,len); - - if ((err = i2c_transfer (state->i2c, msg, 2)) != 2) { - deb_info("%s: i2c read error (addr %02x, reg %02x, err == %i)\n", - __func__, state->config->demod_address, reg, err); - return -EREMOTEIO; - } - deb_i2c("i2c rd %02x: ",reg); - dbufout(buf,len,deb_i2c); - deb_i2c("\n"); - - return 0; -} - -static int bcm3510_writeB(struct bcm3510_state *state, u8 reg, bcm3510_register_value v) -{ - return bcm3510_writebytes(state,reg,&v.raw,1); -} - -static int bcm3510_readB(struct bcm3510_state *state, u8 reg, bcm3510_register_value *v) -{ - return bcm3510_readbytes(state,reg,&v->raw,1); -} - -/* Host Access Buffer transfers */ -static int bcm3510_hab_get_response(struct bcm3510_state *st, u8 *buf, int len) -{ - bcm3510_register_value v; - int ret,i; - - v.HABADR_a6.HABADR = 0; - if ((ret = bcm3510_writeB(st,0xa6,v)) < 0) - return ret; - - for (i = 0; i < len; i++) { - if ((ret = bcm3510_readB(st,0xa7,&v)) < 0) - return ret; - buf[i] = v.HABDATA_a7; - } - return 0; -} - -static int bcm3510_hab_send_request(struct bcm3510_state *st, u8 *buf, int len) -{ - bcm3510_register_value v,hab; - int ret,i; - unsigned long t; - -/* Check if any previous HAB request still needs to be serviced by the - * Acquisition Processor before sending new request */ - if ((ret = bcm3510_readB(st,0xa8,&v)) < 0) - return ret; - if (v.HABSTAT_a8.HABR) { - deb_info("HAB is running already - clearing it.\n"); - v.HABSTAT_a8.HABR = 0; - bcm3510_writeB(st,0xa8,v); -// return -EBUSY; - } - -/* Send the start HAB Address (automatically incremented after write of - * HABDATA) and write the HAB Data */ - hab.HABADR_a6.HABADR = 0; - if ((ret = bcm3510_writeB(st,0xa6,hab)) < 0) - return ret; - - for (i = 0; i < len; i++) { - hab.HABDATA_a7 = buf[i]; - if ((ret = bcm3510_writeB(st,0xa7,hab)) < 0) - return ret; - } - -/* Set the HABR bit to indicate AP request in progress (LBHABR allows HABR to - * be written) */ - v.raw = 0; v.HABSTAT_a8.HABR = 1; v.HABSTAT_a8.LDHABR = 1; - if ((ret = bcm3510_writeB(st,0xa8,v)) < 0) - return ret; - -/* Polling method: Wait until the AP finishes processing the HAB request */ - t = jiffies + 1*HZ; - while (time_before(jiffies, t)) { - deb_info("waiting for HAB to complete\n"); - msleep(10); - if ((ret = bcm3510_readB(st,0xa8,&v)) < 0) - return ret; - - if (!v.HABSTAT_a8.HABR) - return 0; - } - - deb_info("send_request execution timed out.\n"); - return -ETIMEDOUT; -} - -static int bcm3510_do_hab_cmd(struct bcm3510_state *st, u8 cmd, u8 msgid, u8 *obuf, u8 olen, u8 *ibuf, u8 ilen) -{ - u8 ob[olen+2],ib[ilen+2]; - int ret = 0; - - ob[0] = cmd; - ob[1] = msgid; - memcpy(&ob[2],obuf,olen); - - deb_hab("hab snd: "); - dbufout(ob,olen+2,deb_hab); - deb_hab("\n"); - - if (mutex_lock_interruptible(&st->hab_mutex) < 0) - return -EAGAIN; - - if ((ret = bcm3510_hab_send_request(st, ob, olen+2)) < 0 || - (ret = bcm3510_hab_get_response(st, ib, ilen+2)) < 0) - goto error; - - deb_hab("hab get: "); - dbufout(ib,ilen+2,deb_hab); - deb_hab("\n"); - - memcpy(ibuf,&ib[2],ilen); -error: - mutex_unlock(&st->hab_mutex); - return ret; -} - -#if 0 -/* not needed, we use a semaphore to prevent HAB races */ -static int bcm3510_is_ap_ready(struct bcm3510_state *st) -{ - bcm3510_register_value ap,hab; - int ret; - - if ((ret = bcm3510_readB(st,0xa8,&hab)) < 0 || - (ret = bcm3510_readB(st,0xa2,&ap) < 0)) - return ret; - - if (ap.APSTAT1_a2.RESET || ap.APSTAT1_a2.IDLE || ap.APSTAT1_a2.STOP || hab.HABSTAT_a8.HABR) { - deb_info("AP is busy\n"); - return -EBUSY; - } - - return 0; -} -#endif - -static int bcm3510_bert_reset(struct bcm3510_state *st) -{ - bcm3510_register_value b; - int ret; - - if ((ret = bcm3510_readB(st,0xfa,&b)) < 0) - return ret; - - b.BERCTL_fa.RESYNC = 0; bcm3510_writeB(st,0xfa,b); - b.BERCTL_fa.RESYNC = 1; bcm3510_writeB(st,0xfa,b); - b.BERCTL_fa.RESYNC = 0; bcm3510_writeB(st,0xfa,b); - b.BERCTL_fa.CNTCTL = 1; b.BERCTL_fa.BITCNT = 1; bcm3510_writeB(st,0xfa,b); - - /* clear residual bit counter TODO */ - return 0; -} - -static int bcm3510_refresh_state(struct bcm3510_state *st) -{ - if (time_after(jiffies,st->next_status_check)) { - bcm3510_do_hab_cmd(st, CMD_STATUS, MSGID_STATUS1, NULL,0, (u8 *)&st->status1, sizeof(st->status1)); - bcm3510_do_hab_cmd(st, CMD_STATUS, MSGID_STATUS2, NULL,0, (u8 *)&st->status2, sizeof(st->status2)); - st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000; - } - return 0; -} - -static int bcm3510_read_status(struct dvb_frontend *fe, fe_status_t *status) -{ - struct bcm3510_state* st = fe->demodulator_priv; - bcm3510_refresh_state(st); - - *status = 0; - if (st->status1.STATUS1.RECEIVER_LOCK) - *status |= FE_HAS_LOCK | FE_HAS_SYNC; - - if (st->status1.STATUS1.FEC_LOCK) - *status |= FE_HAS_VITERBI; - - if (st->status1.STATUS1.OUT_PLL_LOCK) - *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER; - - if (*status & FE_HAS_LOCK) - st->status_check_interval = 1500; - else /* more frequently checks if no lock has been achieved yet */ - st->status_check_interval = 500; - - deb_info("real_status: %02x\n",*status); - return 0; -} - -static int bcm3510_read_ber(struct dvb_frontend* fe, u32* ber) -{ - struct bcm3510_state* st = fe->demodulator_priv; - bcm3510_refresh_state(st); - - *ber = (st->status2.LDBER0 << 16) | (st->status2.LDBER1 << 8) | st->status2.LDBER2; - return 0; -} - -static int bcm3510_read_unc(struct dvb_frontend* fe, u32* unc) -{ - struct bcm3510_state* st = fe->demodulator_priv; - bcm3510_refresh_state(st); - *unc = (st->status2.LDUERC0 << 8) | st->status2.LDUERC1; - return 0; -} - -static int bcm3510_read_signal_strength(struct dvb_frontend* fe, u16* strength) -{ - struct bcm3510_state* st = fe->demodulator_priv; - s32 t; - - bcm3510_refresh_state(st); - t = st->status2.SIGNAL; - - if (t > 190) - t = 190; - if (t < 90) - t = 90; - - t -= 90; - t = t * 0xff / 100; - /* normalize if necessary */ - *strength = (t << 8) | t; - return 0; -} - -static int bcm3510_read_snr(struct dvb_frontend* fe, u16* snr) -{ - struct bcm3510_state* st = fe->demodulator_priv; - bcm3510_refresh_state(st); - - *snr = st->status1.SNR_EST0*1000 + ((st->status1.SNR_EST1*1000) >> 8); - return 0; -} - -/* tuner frontend programming */ -static int bcm3510_tuner_cmd(struct bcm3510_state* st,u8 bc, u16 n, u8 a) -{ - struct bcm3510_hab_cmd_tune c; - memset(&c,0,sizeof(struct bcm3510_hab_cmd_tune)); - -/* I2C Mode disabled, set 16 control / Data pairs */ - c.length = 0x10; - c.clock_width = 0; -/* CS1, CS0, DATA, CLK bits control the tuner RF_AGC_SEL pin is set to - * logic high (as Configuration) */ - c.misc = 0x10; -/* Set duration of the initial state of TUNCTL = 3.34 micro Sec */ - c.TUNCTL_state = 0x40; - -/* PRESCALER DIVIDE RATIO | BC1_2_3_4; (band switch), 1stosc REFERENCE COUNTER REF_S12 and REF_S11 */ - c.ctl_dat[0].ctrl.size = BITS_8; - c.ctl_dat[0].data = 0x80 | bc; - -/* Control DATA pin, 1stosc REFERENCE COUNTER REF_S10 to REF_S3 */ - c.ctl_dat[1].ctrl.size = BITS_8; - c.ctl_dat[1].data = 4; - -/* set CONTROL BIT 1 to 1, 1stosc REFERENCE COUNTER REF_S2 to REF_S1 */ - c.ctl_dat[2].ctrl.size = BITS_3; - c.ctl_dat[2].data = 0x20; - -/* control CS0 pin, pulse byte ? */ - c.ctl_dat[3].ctrl.size = BITS_3; - c.ctl_dat[3].ctrl.clk_off = 1; - c.ctl_dat[3].ctrl.cs0 = 1; - c.ctl_dat[3].data = 0x40; - -/* PGM_S18 to PGM_S11 */ - c.ctl_dat[4].ctrl.size = BITS_8; - c.ctl_dat[4].data = n >> 3; - -/* PGM_S10 to PGM_S8, SWL_S7 to SWL_S3 */ - c.ctl_dat[5].ctrl.size = BITS_8; - c.ctl_dat[5].data = ((n & 0x7) << 5) | (a >> 2); - -/* SWL_S2 and SWL_S1, set CONTROL BIT 2 to 0 */ - c.ctl_dat[6].ctrl.size = BITS_3; - c.ctl_dat[6].data = (a << 6) & 0xdf; - -/* control CS0 pin, pulse byte ? */ - c.ctl_dat[7].ctrl.size = BITS_3; - c.ctl_dat[7].ctrl.clk_off = 1; - c.ctl_dat[7].ctrl.cs0 = 1; - c.ctl_dat[7].data = 0x40; - -/* PRESCALER DIVIDE RATIO, 2ndosc REFERENCE COUNTER REF_S12 and REF_S11 */ - c.ctl_dat[8].ctrl.size = BITS_8; - c.ctl_dat[8].data = 0x80; - -/* 2ndosc REFERENCE COUNTER REF_S10 to REF_S3 */ - c.ctl_dat[9].ctrl.size = BITS_8; - c.ctl_dat[9].data = 0x10; - -/* set CONTROL BIT 1 to 1, 2ndosc REFERENCE COUNTER REF_S2 to REF_S1 */ - c.ctl_dat[10].ctrl.size = BITS_3; - c.ctl_dat[10].data = 0x20; - -/* pulse byte */ - c.ctl_dat[11].ctrl.size = BITS_3; - c.ctl_dat[11].ctrl.clk_off = 1; - c.ctl_dat[11].ctrl.cs1 = 1; - c.ctl_dat[11].data = 0x40; - -/* PGM_S18 to PGM_S11 */ - c.ctl_dat[12].ctrl.size = BITS_8; - c.ctl_dat[12].data = 0x2a; - -/* PGM_S10 to PGM_S8 and SWL_S7 to SWL_S3 */ - c.ctl_dat[13].ctrl.size = BITS_8; - c.ctl_dat[13].data = 0x8e; - -/* SWL_S2 and SWL_S1 and set CONTROL BIT 2 to 0 */ - c.ctl_dat[14].ctrl.size = BITS_3; - c.ctl_dat[14].data = 0; - -/* Pulse Byte */ - c.ctl_dat[15].ctrl.size = BITS_3; - c.ctl_dat[15].ctrl.clk_off = 1; - c.ctl_dat[15].ctrl.cs1 = 1; - c.ctl_dat[15].data = 0x40; - - return bcm3510_do_hab_cmd(st,CMD_TUNE, MSGID_TUNE,(u8 *) &c,sizeof(c), NULL, 0); -} - -static int bcm3510_set_freq(struct bcm3510_state* st,u32 freq) -{ - u8 bc,a; - u16 n; - s32 YIntercept,Tfvco1; - - freq /= 1000; - - deb_info("%dkHz:",freq); - /* set Band Switch */ - if (freq <= 168000) - bc = 0x1c; - else if (freq <= 378000) - bc = 0x2c; - else - bc = 0x30; - - if (freq >= 470000) { - freq -= 470001; - YIntercept = 18805; - } else if (freq >= 90000) { - freq -= 90001; - YIntercept = 15005; - } else if (freq >= 76000){ - freq -= 76001; - YIntercept = 14865; - } else { - freq -= 54001; - YIntercept = 14645; - } - - Tfvco1 = (((freq/6000)*60 + YIntercept)*4)/10; - - n = Tfvco1 >> 6; - a = Tfvco1 & 0x3f; - - deb_info(" BC1_2_3_4: %x, N: %x A: %x\n", bc, n, a); - if (n >= 16 && n <= 2047) - return bcm3510_tuner_cmd(st,bc,n,a); - - return -EINVAL; -} - -static int bcm3510_set_frontend(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - struct bcm3510_state* st = fe->demodulator_priv; - struct bcm3510_hab_cmd_ext_acquire cmd; - struct bcm3510_hab_cmd_bert_control bert; - int ret; - - memset(&cmd,0,sizeof(cmd)); - switch (c->modulation) { - case QAM_256: - cmd.ACQUIRE0.MODE = 0x1; - cmd.ACQUIRE1.SYM_RATE = 0x1; - cmd.ACQUIRE1.IF_FREQ = 0x1; - break; - case QAM_64: - cmd.ACQUIRE0.MODE = 0x2; - cmd.ACQUIRE1.SYM_RATE = 0x2; - cmd.ACQUIRE1.IF_FREQ = 0x1; - break; -#if 0 - case QAM_256: - cmd.ACQUIRE0.MODE = 0x3; - break; - case QAM_128: - cmd.ACQUIRE0.MODE = 0x4; - break; - case QAM_64: - cmd.ACQUIRE0.MODE = 0x5; - break; - case QAM_32: - cmd.ACQUIRE0.MODE = 0x6; - break; - case QAM_16: - cmd.ACQUIRE0.MODE = 0x7; - break; -#endif - case VSB_8: - cmd.ACQUIRE0.MODE = 0x8; - cmd.ACQUIRE1.SYM_RATE = 0x0; - cmd.ACQUIRE1.IF_FREQ = 0x0; - break; - case VSB_16: - cmd.ACQUIRE0.MODE = 0x9; - cmd.ACQUIRE1.SYM_RATE = 0x0; - cmd.ACQUIRE1.IF_FREQ = 0x0; - default: - return -EINVAL; - }; - cmd.ACQUIRE0.OFFSET = 0; - cmd.ACQUIRE0.NTSCSWEEP = 1; - cmd.ACQUIRE0.FA = 1; - cmd.ACQUIRE0.BW = 0; - -/* if (enableOffset) { - cmd.IF_OFFSET0 = xx; - cmd.IF_OFFSET1 = xx; - - cmd.SYM_OFFSET0 = xx; - cmd.SYM_OFFSET1 = xx; - if (enableNtscSweep) { - cmd.NTSC_OFFSET0; - cmd.NTSC_OFFSET1; - } - } */ - bcm3510_do_hab_cmd(st, CMD_ACQUIRE, MSGID_EXT_TUNER_ACQUIRE, (u8 *) &cmd, sizeof(cmd), NULL, 0); - -/* doing it with different MSGIDs, data book and source differs */ - bert.BE = 0; - bert.unused = 0; - bcm3510_do_hab_cmd(st, CMD_STATE_CONTROL, MSGID_BERT_CONTROL, (u8 *) &bert, sizeof(bert), NULL, 0); - bcm3510_do_hab_cmd(st, CMD_STATE_CONTROL, MSGID_BERT_SET, (u8 *) &bert, sizeof(bert), NULL, 0); - - bcm3510_bert_reset(st); - - ret = bcm3510_set_freq(st, c->frequency); - if (ret < 0) - return ret; - - memset(&st->status1,0,sizeof(st->status1)); - memset(&st->status2,0,sizeof(st->status2)); - st->status_check_interval = 500; - -/* Give the AP some time */ - msleep(200); - - return 0; -} - -static int bcm3510_sleep(struct dvb_frontend* fe) -{ - return 0; -} - -static int bcm3510_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *s) -{ - s->min_delay_ms = 1000; - s->step_size = 0; - s->max_drift = 0; - return 0; -} - -static void bcm3510_release(struct dvb_frontend* fe) -{ - struct bcm3510_state* state = fe->demodulator_priv; - kfree(state); -} - -/* firmware download: - * firmware file is build up like this: - * 16bit addr, 16bit length, 8byte of length - */ -#define BCM3510_DEFAULT_FIRMWARE "dvb-fe-bcm3510-01.fw" - -static int bcm3510_write_ram(struct bcm3510_state *st, u16 addr, const u8 *b, - u16 len) -{ - int ret = 0,i; - bcm3510_register_value vH, vL,vD; - - vH.MADRH_a9 = addr >> 8; - vL.MADRL_aa = addr; - if ((ret = bcm3510_writeB(st,0xa9,vH)) < 0) return ret; - if ((ret = bcm3510_writeB(st,0xaa,vL)) < 0) return ret; - - for (i = 0; i < len; i++) { - vD.MDATA_ab = b[i]; - if ((ret = bcm3510_writeB(st,0xab,vD)) < 0) - return ret; - } - - return 0; -} - -static int bcm3510_download_firmware(struct dvb_frontend* fe) -{ - struct bcm3510_state* st = fe->demodulator_priv; - const struct firmware *fw; - u16 addr,len; - const u8 *b; - int ret,i; - - deb_info("requesting firmware\n"); - if ((ret = st->config->request_firmware(fe, &fw, BCM3510_DEFAULT_FIRMWARE)) < 0) { - err("could not load firmware (%s): %d",BCM3510_DEFAULT_FIRMWARE,ret); - return ret; - } - deb_info("got firmware: %zd\n",fw->size); - - b = fw->data; - for (i = 0; i < fw->size;) { - addr = le16_to_cpu( *( (u16 *)&b[i] ) ); - len = le16_to_cpu( *( (u16 *)&b[i+2] ) ); - deb_info("firmware chunk, addr: 0x%04x, len: 0x%04x, total length: 0x%04zx\n",addr,len,fw->size); - if ((ret = bcm3510_write_ram(st,addr,&b[i+4],len)) < 0) { - err("firmware download failed: %d\n",ret); - return ret; - } - i += 4 + len; - } - release_firmware(fw); - deb_info("firmware download successfully completed\n"); - return 0; -} - -static int bcm3510_check_firmware_version(struct bcm3510_state *st) -{ - struct bcm3510_hab_cmd_get_version_info ver; - bcm3510_do_hab_cmd(st,CMD_GET_VERSION_INFO,MSGID_GET_VERSION_INFO,NULL,0,(u8*)&ver,sizeof(ver)); - - deb_info("Version information: 0x%02x 0x%02x 0x%02x 0x%02x\n", - ver.microcode_version, ver.script_version, ver.config_version, ver.demod_version); - - if (ver.script_version == BCM3510_DEF_SCRIPT_VERSION && - ver.config_version == BCM3510_DEF_CONFIG_VERSION && - ver.demod_version == BCM3510_DEF_DEMOD_VERSION) - return 0; - - deb_info("version check failed\n"); - return -ENODEV; -} - -/* (un)resetting the AP */ -static int bcm3510_reset(struct bcm3510_state *st) -{ - int ret; - unsigned long t; - bcm3510_register_value v; - - bcm3510_readB(st,0xa0,&v); v.HCTL1_a0.RESET = 1; - if ((ret = bcm3510_writeB(st,0xa0,v)) < 0) - return ret; - - t = jiffies + 3*HZ; - while (time_before(jiffies, t)) { - msleep(10); - if ((ret = bcm3510_readB(st,0xa2,&v)) < 0) - return ret; - - if (v.APSTAT1_a2.RESET) - return 0; - } - deb_info("reset timed out\n"); - return -ETIMEDOUT; -} - -static int bcm3510_clear_reset(struct bcm3510_state *st) -{ - bcm3510_register_value v; - int ret; - unsigned long t; - - v.raw = 0; - if ((ret = bcm3510_writeB(st,0xa0,v)) < 0) - return ret; - - t = jiffies + 3*HZ; - while (time_before(jiffies, t)) { - msleep(10); - if ((ret = bcm3510_readB(st,0xa2,&v)) < 0) - return ret; - - /* verify that reset is cleared */ - if (!v.APSTAT1_a2.RESET) - return 0; - } - deb_info("reset clear timed out\n"); - return -ETIMEDOUT; -} - -static int bcm3510_init_cold(struct bcm3510_state *st) -{ - int ret; - bcm3510_register_value v; - - /* read Acquisation Processor status register and check it is not in RUN mode */ - if ((ret = bcm3510_readB(st,0xa2,&v)) < 0) - return ret; - if (v.APSTAT1_a2.RUN) { - deb_info("AP is already running - firmware already loaded.\n"); - return 0; - } - - deb_info("reset?\n"); - if ((ret = bcm3510_reset(st)) < 0) - return ret; - - deb_info("tristate?\n"); - /* tri-state */ - v.TSTCTL_2e.CTL = 0; - if ((ret = bcm3510_writeB(st,0x2e,v)) < 0) - return ret; - - deb_info("firmware?\n"); - if ((ret = bcm3510_download_firmware(&st->frontend)) < 0 || - (ret = bcm3510_clear_reset(st)) < 0) - return ret; - - /* anything left here to Let the acquisition processor begin execution at program counter 0000 ??? */ - - return 0; -} - -static int bcm3510_init(struct dvb_frontend* fe) -{ - struct bcm3510_state* st = fe->demodulator_priv; - bcm3510_register_value j; - struct bcm3510_hab_cmd_set_agc c; - int ret; - - if ((ret = bcm3510_readB(st,0xca,&j)) < 0) - return ret; - - deb_info("JDEC: %02x\n",j.raw); - - switch (j.JDEC_ca.JDEC) { - case JDEC_WAIT_AT_RAM: - deb_info("attempting to download firmware\n"); - if ((ret = bcm3510_init_cold(st)) < 0) - return ret; - case JDEC_EEPROM_LOAD_WAIT: /* fall-through is wanted */ - deb_info("firmware is loaded\n"); - bcm3510_check_firmware_version(st); - break; - default: - return -ENODEV; - } - - memset(&c,0,1); - c.SEL = 1; - bcm3510_do_hab_cmd(st,CMD_AUTO_PARAM,MSGID_SET_RF_AGC_SEL,(u8 *)&c,sizeof(c),NULL,0); - - return 0; -} - - -static struct dvb_frontend_ops bcm3510_ops; - -struct dvb_frontend* bcm3510_attach(const struct bcm3510_config *config, - struct i2c_adapter *i2c) -{ - struct bcm3510_state* state = NULL; - int ret; - bcm3510_register_value v; - - /* allocate memory for the internal state */ - state = kzalloc(sizeof(struct bcm3510_state), GFP_KERNEL); - if (state == NULL) - goto error; - - /* setup the state */ - - state->config = config; - state->i2c = i2c; - - /* create dvb_frontend */ - memcpy(&state->frontend.ops, &bcm3510_ops, sizeof(struct dvb_frontend_ops)); - state->frontend.demodulator_priv = state; - - mutex_init(&state->hab_mutex); - - if ((ret = bcm3510_readB(state,0xe0,&v)) < 0) - goto error; - - deb_info("Revision: 0x%1x, Layer: 0x%1x.\n",v.REVID_e0.REV,v.REVID_e0.LAYER); - - if ((v.REVID_e0.REV != 0x1 && v.REVID_e0.LAYER != 0xb) && /* cold */ - (v.REVID_e0.REV != 0x8 && v.REVID_e0.LAYER != 0x0)) /* warm */ - goto error; - - info("Revision: 0x%1x, Layer: 0x%1x.",v.REVID_e0.REV,v.REVID_e0.LAYER); - - bcm3510_reset(state); - - return &state->frontend; - -error: - kfree(state); - return NULL; -} -EXPORT_SYMBOL(bcm3510_attach); - -static struct dvb_frontend_ops bcm3510_ops = { - .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B }, - .info = { - .name = "Broadcom BCM3510 VSB/QAM frontend", - .frequency_min = 54000000, - .frequency_max = 803000000, - /* stepsize is just a guess */ - .frequency_stepsize = 0, - .caps = - FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | - FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | - FE_CAN_8VSB | FE_CAN_16VSB | - FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256 - }, - - .release = bcm3510_release, - - .init = bcm3510_init, - .sleep = bcm3510_sleep, - - .set_frontend = bcm3510_set_frontend, - .get_tune_settings = bcm3510_get_tune_settings, - - .read_status = bcm3510_read_status, - .read_ber = bcm3510_read_ber, - .read_signal_strength = bcm3510_read_signal_strength, - .read_snr = bcm3510_read_snr, - .read_ucblocks = bcm3510_read_unc, -}; - -MODULE_DESCRIPTION("Broadcom BCM3510 ATSC (8VSB/16VSB & ITU J83 AnnexB FEC QAM64/256) demodulator driver"); -MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>"); -MODULE_LICENSE("GPL"); |
