/* * Support for the Broadcom BCM3510 ATSC demodulator (1st generation Air2PC) * * Copyright (C) 2001-5, B2C2 inc. * * GPL/Linux driver written by Patrick Boettcher * * 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 #include #include #include #include #include #include #include #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 dvb_frontend_parameters *p) { 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 (p->u.vsb.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; /* 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;*/ 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); if ((ret = bcm3510_set_freq(st,p->frequency)) < 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 = { .info = { .name = "Broadcom BCM3510 VSB/QAM frontend", .type = FE_ATSC, .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 "); MODULE_LICENSE("GPL");