| /* |
| Conexant cx24116/cx24118 - DVBS/S2 Satellite demod/tuner driver |
| |
| Copyright (C) 2006-2008 Steven Toth <stoth@hauppauge.com> |
| Copyright (C) 2006-2007 Georg Acher |
| Copyright (C) 2007-2008 Darron Broad |
| March 2007 |
| Fixed some bugs. |
| Added diseqc support. |
| Added corrected signal strength support. |
| August 2007 |
| Sync with legacy version. |
| Some clean ups. |
| Copyright (C) 2008 Igor Liplianin |
| September, 9th 2008 |
| Fixed locking on high symbol rates (>30000). |
| Implement MPEG initialization parameter. |
| January, 17th 2009 |
| Fill set_voltage with actually control voltage code. |
| Correct set tone to not affect voltage. |
| |
| 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/slab.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/init.h> |
| #include <linux/firmware.h> |
| |
| #include "dvb_frontend.h" |
| #include "cx24116.h" |
| |
| static int debug; |
| module_param(debug, int, 0644); |
| MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)"); |
| |
| #define dprintk(args...) \ |
| do { \ |
| if (debug) \ |
| printk(KERN_INFO "cx24116: " args); \ |
| } while (0) |
| |
| #define CX24116_DEFAULT_FIRMWARE "dvb-fe-cx24116.fw" |
| #define CX24116_SEARCH_RANGE_KHZ 5000 |
| |
| /* known registers */ |
| #define CX24116_REG_COMMAND (0x00) /* command args 0x00..0x1e */ |
| #define CX24116_REG_EXECUTE (0x1f) /* execute command */ |
| #define CX24116_REG_MAILBOX (0x96) /* FW or multipurpose mailbox? */ |
| #define CX24116_REG_RESET (0x20) /* reset status > 0 */ |
| #define CX24116_REG_SIGNAL (0x9e) /* signal low */ |
| #define CX24116_REG_SSTATUS (0x9d) /* signal high / status */ |
| #define CX24116_REG_QUALITY8 (0xa3) |
| #define CX24116_REG_QSTATUS (0xbc) |
| #define CX24116_REG_QUALITY0 (0xd5) |
| #define CX24116_REG_BER0 (0xc9) |
| #define CX24116_REG_BER8 (0xc8) |
| #define CX24116_REG_BER16 (0xc7) |
| #define CX24116_REG_BER24 (0xc6) |
| #define CX24116_REG_UCB0 (0xcb) |
| #define CX24116_REG_UCB8 (0xca) |
| #define CX24116_REG_CLKDIV (0xf3) |
| #define CX24116_REG_RATEDIV (0xf9) |
| |
| /* configured fec (not tuned) or actual FEC (tuned) 1=1/2 2=2/3 etc */ |
| #define CX24116_REG_FECSTATUS (0x9c) |
| |
| /* FECSTATUS bits */ |
| /* mask to determine configured fec (not tuned) or actual fec (tuned) */ |
| #define CX24116_FEC_FECMASK (0x1f) |
| |
| /* Select DVB-S demodulator, else DVB-S2 */ |
| #define CX24116_FEC_DVBS (0x20) |
| #define CX24116_FEC_UNKNOWN (0x40) /* Unknown/unused */ |
| |
| /* Pilot mode requested when tuning else always reset when tuned */ |
| #define CX24116_FEC_PILOT (0x80) |
| |
| /* arg buffer size */ |
| #define CX24116_ARGLEN (0x1e) |
| |
| /* rolloff */ |
| #define CX24116_ROLLOFF_020 (0x00) |
| #define CX24116_ROLLOFF_025 (0x01) |
| #define CX24116_ROLLOFF_035 (0x02) |
| |
| /* pilot bit */ |
| #define CX24116_PILOT_OFF (0x00) |
| #define CX24116_PILOT_ON (0x40) |
| |
| /* signal status */ |
| #define CX24116_HAS_SIGNAL (0x01) |
| #define CX24116_HAS_CARRIER (0x02) |
| #define CX24116_HAS_VITERBI (0x04) |
| #define CX24116_HAS_SYNCLOCK (0x08) |
| #define CX24116_HAS_UNKNOWN1 (0x10) |
| #define CX24116_HAS_UNKNOWN2 (0x20) |
| #define CX24116_STATUS_MASK (0x0f) |
| #define CX24116_SIGNAL_MASK (0xc0) |
| |
| #define CX24116_DISEQC_TONEOFF (0) /* toneburst never sent */ |
| #define CX24116_DISEQC_TONECACHE (1) /* toneburst cached */ |
| #define CX24116_DISEQC_MESGCACHE (2) /* message cached */ |
| |
| /* arg offset for DiSEqC */ |
| #define CX24116_DISEQC_BURST (1) |
| #define CX24116_DISEQC_ARG2_2 (2) /* unknown value=2 */ |
| #define CX24116_DISEQC_ARG3_0 (3) /* unknown value=0 */ |
| #define CX24116_DISEQC_ARG4_0 (4) /* unknown value=0 */ |
| #define CX24116_DISEQC_MSGLEN (5) |
| #define CX24116_DISEQC_MSGOFS (6) |
| |
| /* DiSEqC burst */ |
| #define CX24116_DISEQC_MINI_A (0) |
| #define CX24116_DISEQC_MINI_B (1) |
| |
| /* DiSEqC tone burst */ |
| static int toneburst = 1; |
| module_param(toneburst, int, 0644); |
| MODULE_PARM_DESC(toneburst, "DiSEqC toneburst 0=OFF, 1=TONE CACHE, "\ |
| "2=MESSAGE CACHE (default:1)"); |
| |
| /* SNR measurements */ |
| static int esno_snr; |
| module_param(esno_snr, int, 0644); |
| MODULE_PARM_DESC(esno_snr, "SNR return units, 0=PERCENTAGE 0-100, "\ |
| "1=ESNO(db * 10) (default:0)"); |
| |
| enum cmds { |
| CMD_SET_VCO = 0x10, |
| CMD_TUNEREQUEST = 0x11, |
| CMD_MPEGCONFIG = 0x13, |
| CMD_TUNERINIT = 0x14, |
| CMD_BANDWIDTH = 0x15, |
| CMD_GETAGC = 0x19, |
| CMD_LNBCONFIG = 0x20, |
| CMD_LNBSEND = 0x21, /* Formerly CMD_SEND_DISEQC */ |
| CMD_LNBDCLEVEL = 0x22, |
| CMD_SET_TONE = 0x23, |
| CMD_UPDFWVERS = 0x35, |
| CMD_TUNERSLEEP = 0x36, |
| CMD_AGCCONTROL = 0x3b, /* Unknown */ |
| }; |
| |
| /* The Demod/Tuner can't easily provide these, we cache them */ |
| struct cx24116_tuning { |
| u32 frequency; |
| u32 symbol_rate; |
| fe_spectral_inversion_t inversion; |
| fe_code_rate_t fec; |
| |
| fe_delivery_system_t delsys; |
| fe_modulation_t modulation; |
| fe_pilot_t pilot; |
| fe_rolloff_t rolloff; |
| |
| /* Demod values */ |
| u8 fec_val; |
| u8 fec_mask; |
| u8 inversion_val; |
| u8 pilot_val; |
| u8 rolloff_val; |
| }; |
| |
| /* Basic commands that are sent to the firmware */ |
| struct cx24116_cmd { |
| u8 len; |
| u8 args[CX24116_ARGLEN]; |
| }; |
| |
| struct cx24116_state { |
| struct i2c_adapter *i2c; |
| const struct cx24116_config *config; |
| |
| struct dvb_frontend frontend; |
| |
| struct cx24116_tuning dcur; |
| struct cx24116_tuning dnxt; |
| |
| u8 skip_fw_load; |
| u8 burst; |
| struct cx24116_cmd dsec_cmd; |
| }; |
| |
| static int cx24116_writereg(struct cx24116_state *state, int reg, int data) |
| { |
| u8 buf[] = { reg, data }; |
| struct i2c_msg msg = { .addr = state->config->demod_address, |
| .flags = 0, .buf = buf, .len = 2 }; |
| int err; |
| |
| if (debug > 1) |
| printk("cx24116: %s: write reg 0x%02x, value 0x%02x\n", |
| __func__, reg, data); |
| |
| err = i2c_transfer(state->i2c, &msg, 1); |
| if (err != 1) { |
| printk(KERN_ERR "%s: writereg error(err == %i, reg == 0x%02x," |
| " value == 0x%02x)\n", __func__, err, reg, data); |
| return -EREMOTEIO; |
| } |
| |
| return 0; |
| } |
| |
| /* Bulk byte writes to a single I2C address, for 32k firmware load */ |
| static int cx24116_writeregN(struct cx24116_state *state, int reg, |
| const u8 *data, u16 len) |
| { |
| int ret = -EREMOTEIO; |
| struct i2c_msg msg; |
| u8 *buf; |
| |
| buf = kmalloc(len + 1, GFP_KERNEL); |
| if (buf == NULL) { |
| printk("Unable to kmalloc\n"); |
| ret = -ENOMEM; |
| goto error; |
| } |
| |
| *(buf) = reg; |
| memcpy(buf + 1, data, len); |
| |
| msg.addr = state->config->demod_address; |
| msg.flags = 0; |
| msg.buf = buf; |
| msg.len = len + 1; |
| |
| if (debug > 1) |
| printk(KERN_INFO "cx24116: %s: write regN 0x%02x, len = %d\n", |
| __func__, reg, len); |
| |
| ret = i2c_transfer(state->i2c, &msg, 1); |
| if (ret != 1) { |
| printk(KERN_ERR "%s: writereg error(err == %i, reg == 0x%02x\n", |
| __func__, ret, reg); |
| ret = -EREMOTEIO; |
| } |
| |
| error: |
| kfree(buf); |
| |
| return ret; |
| } |
| |
| static int cx24116_readreg(struct cx24116_state *state, u8 reg) |
| { |
| int ret; |
| u8 b0[] = { reg }; |
| u8 b1[] = { 0 }; |
| struct i2c_msg msg[] = { |
| { .addr = state->config->demod_address, .flags = 0, |
| .buf = b0, .len = 1 }, |
| { .addr = state->config->demod_address, .flags = I2C_M_RD, |
| .buf = b1, .len = 1 } |
| }; |
| |
| ret = i2c_transfer(state->i2c, msg, 2); |
| |
| if (ret != 2) { |
| printk(KERN_ERR "%s: reg=0x%x (error=%d)\n", |
| __func__, reg, ret); |
| return ret; |
| } |
| |
| if (debug > 1) |
| printk(KERN_INFO "cx24116: read reg 0x%02x, value 0x%02x\n", |
| reg, b1[0]); |
| |
| return b1[0]; |
| } |
| |
| static int cx24116_set_inversion(struct cx24116_state *state, |
| fe_spectral_inversion_t inversion) |
| { |
| dprintk("%s(%d)\n", __func__, inversion); |
| |
| switch (inversion) { |
| case INVERSION_OFF: |
| state->dnxt.inversion_val = 0x00; |
| break; |
| case INVERSION_ON: |
| state->dnxt.inversion_val = 0x04; |
| break; |
| case INVERSION_AUTO: |
| state->dnxt.inversion_val = 0x0C; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| state->dnxt.inversion = inversion; |
| |
| return 0; |
| } |
| |
| /* |
| * modfec (modulation and FEC) |
| * =========================== |
| * |
| * MOD FEC mask/val standard |
| * ---- -------- ----------- -------- |
| * QPSK FEC_1_2 0x02 0x02+X DVB-S |
| * QPSK FEC_2_3 0x04 0x02+X DVB-S |
| * QPSK FEC_3_4 0x08 0x02+X DVB-S |
| * QPSK FEC_4_5 0x10 0x02+X DVB-S (?) |
| * QPSK FEC_5_6 0x20 0x02+X DVB-S |
| * QPSK FEC_6_7 0x40 0x02+X DVB-S |
| * QPSK FEC_7_8 0x80 0x02+X DVB-S |
| * QPSK FEC_8_9 0x01 0x02+X DVB-S (?) (NOT SUPPORTED?) |
| * QPSK AUTO 0xff 0x02+X DVB-S |
| * |
| * For DVB-S high byte probably represents FEC |
| * and low byte selects the modulator. The high |
| * byte is search range mask. Bit 5 may turn |
| * on DVB-S and remaining bits represent some |
| * kind of calibration (how/what i do not know). |
| * |
| * Eg.(2/3) szap "Zone Horror" |
| * |
| * mask/val = 0x04, 0x20 |
| * status 1f | signal c3c0 | snr a333 | ber 00000098 | unc 0 | FE_HAS_LOCK |
| * |
| * mask/val = 0x04, 0x30 |
| * status 1f | signal c3c0 | snr a333 | ber 00000000 | unc 0 | FE_HAS_LOCK |
| * |
| * After tuning FECSTATUS contains actual FEC |
| * in use numbered 1 through to 8 for 1/2 .. 2/3 etc |
| * |
| * NBC=NOT/NON BACKWARD COMPATIBLE WITH DVB-S (DVB-S2 only) |
| * |
| * NBC-QPSK FEC_1_2 0x00, 0x04 DVB-S2 |
| * NBC-QPSK FEC_3_5 0x00, 0x05 DVB-S2 |
| * NBC-QPSK FEC_2_3 0x00, 0x06 DVB-S2 |
| * NBC-QPSK FEC_3_4 0x00, 0x07 DVB-S2 |
| * NBC-QPSK FEC_4_5 0x00, 0x08 DVB-S2 |
| * NBC-QPSK FEC_5_6 0x00, 0x09 DVB-S2 |
| * NBC-QPSK FEC_8_9 0x00, 0x0a DVB-S2 |
| * NBC-QPSK FEC_9_10 0x00, 0x0b DVB-S2 |
| * |
| * NBC-8PSK FEC_3_5 0x00, 0x0c DVB-S2 |
| * NBC-8PSK FEC_2_3 0x00, 0x0d DVB-S2 |
| * NBC-8PSK FEC_3_4 0x00, 0x0e DVB-S2 |
| * NBC-8PSK FEC_5_6 0x00, 0x0f DVB-S2 |
| * NBC-8PSK FEC_8_9 0x00, 0x10 DVB-S2 |
| * NBC-8PSK FEC_9_10 0x00, 0x11 DVB-S2 |
| * |
| * For DVB-S2 low bytes selects both modulator |
| * and FEC. High byte is meaningless here. To |
| * set pilot, bit 6 (0x40) is set. When inspecting |
| * FECSTATUS bit 7 (0x80) represents the pilot |
| * selection whilst not tuned. When tuned, actual FEC |
| * in use is found in FECSTATUS as per above. Pilot |
| * value is reset. |
| */ |
| |
| /* A table of modulation, fec and configuration bytes for the demod. |
| * Not all S2 mmodulation schemes are support and not all rates with |
| * a scheme are support. Especially, no auto detect when in S2 mode. |
| */ |
| static struct cx24116_modfec { |
| fe_delivery_system_t delivery_system; |
| fe_modulation_t modulation; |
| fe_code_rate_t fec; |
| u8 mask; /* In DVBS mode this is used to autodetect */ |
| u8 val; /* Passed to the firmware to indicate mode selection */ |
| } CX24116_MODFEC_MODES[] = { |
| /* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */ |
| |
| /*mod fec mask val */ |
| { SYS_DVBS, QPSK, FEC_NONE, 0xfe, 0x30 }, |
| { SYS_DVBS, QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */ |
| { SYS_DVBS, QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */ |
| { SYS_DVBS, QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */ |
| { SYS_DVBS, QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */ |
| { SYS_DVBS, QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */ |
| { SYS_DVBS, QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */ |
| { SYS_DVBS, QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */ |
| { SYS_DVBS, QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */ |
| { SYS_DVBS, QPSK, FEC_AUTO, 0xfe, 0x30 }, |
| /* NBC-QPSK */ |
| { SYS_DVBS2, QPSK, FEC_1_2, 0x00, 0x04 }, |
| { SYS_DVBS2, QPSK, FEC_3_5, 0x00, 0x05 }, |
| { SYS_DVBS2, QPSK, FEC_2_3, 0x00, 0x06 }, |
| { SYS_DVBS2, QPSK, FEC_3_4, 0x00, 0x07 }, |
| { SYS_DVBS2, QPSK, FEC_4_5, 0x00, 0x08 }, |
| { SYS_DVBS2, QPSK, FEC_5_6, 0x00, 0x09 }, |
| { SYS_DVBS2, QPSK, FEC_8_9, 0x00, 0x0a }, |
| { SYS_DVBS2, QPSK, FEC_9_10, 0x00, 0x0b }, |
| /* 8PSK */ |
| { SYS_DVBS2, PSK_8, FEC_3_5, 0x00, 0x0c }, |
| { SYS_DVBS2, PSK_8, FEC_2_3, 0x00, 0x0d }, |
| { SYS_DVBS2, PSK_8, FEC_3_4, 0x00, 0x0e }, |
| { SYS_DVBS2, PSK_8, FEC_5_6, 0x00, 0x0f }, |
| { SYS_DVBS2, PSK_8, FEC_8_9, 0x00, 0x10 }, |
| { SYS_DVBS2, PSK_8, FEC_9_10, 0x00, 0x11 }, |
| /* |
| * `val' can be found in the FECSTATUS register when tuning. |
| * FECSTATUS will give the actual FEC in use if tuning was successful. |
| */ |
| }; |
| |
| static int cx24116_lookup_fecmod(struct cx24116_state *state, |
| fe_delivery_system_t d, fe_modulation_t m, fe_code_rate_t f) |
| { |
| int i, ret = -EOPNOTSUPP; |
| |
| dprintk("%s(0x%02x,0x%02x)\n", __func__, m, f); |
| |
| for (i = 0; i < ARRAY_SIZE(CX24116_MODFEC_MODES); i++) { |
| if ((d == CX24116_MODFEC_MODES[i].delivery_system) && |
| (m == CX24116_MODFEC_MODES[i].modulation) && |
| (f == CX24116_MODFEC_MODES[i].fec)) { |
| ret = i; |
| break; |
| } |
| } |
| |
| return ret; |
| } |
| |
| static int cx24116_set_fec(struct cx24116_state *state, |
| fe_delivery_system_t delsys, fe_modulation_t mod, fe_code_rate_t fec) |
| { |
| int ret = 0; |
| |
| dprintk("%s(0x%02x,0x%02x)\n", __func__, mod, fec); |
| |
| ret = cx24116_lookup_fecmod(state, delsys, mod, fec); |
| |
| if (ret < 0) |
| return ret; |
| |
| state->dnxt.fec = fec; |
| state->dnxt.fec_val = CX24116_MODFEC_MODES[ret].val; |
| state->dnxt.fec_mask = CX24116_MODFEC_MODES[ret].mask; |
| dprintk("%s() mask/val = 0x%02x/0x%02x\n", __func__, |
| state->dnxt.fec_mask, state->dnxt.fec_val); |
| |
| return 0; |
| } |
| |
| static int cx24116_set_symbolrate(struct cx24116_state *state, u32 rate) |
| { |
| dprintk("%s(%d)\n", __func__, rate); |
| |
| /* check if symbol rate is within limits */ |
| if ((rate > state->frontend.ops.info.symbol_rate_max) || |
| (rate < state->frontend.ops.info.symbol_rate_min)) { |
| dprintk("%s() unsupported symbol_rate = %d\n", __func__, rate); |
| return -EOPNOTSUPP; |
| } |
| |
| state->dnxt.symbol_rate = rate; |
| dprintk("%s() symbol_rate = %d\n", __func__, rate); |
| |
| return 0; |
| } |
| |
| static int cx24116_load_firmware(struct dvb_frontend *fe, |
| const struct firmware *fw); |
| |
| static int cx24116_firmware_ondemand(struct dvb_frontend *fe) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| const struct firmware *fw; |
| int ret = 0; |
| |
| dprintk("%s()\n", __func__); |
| |
| if (cx24116_readreg(state, 0x20) > 0) { |
| |
| if (state->skip_fw_load) |
| return 0; |
| |
| /* Load firmware */ |
| /* request the firmware, this will block until loaded */ |
| printk(KERN_INFO "%s: Waiting for firmware upload (%s)...\n", |
| __func__, CX24116_DEFAULT_FIRMWARE); |
| ret = request_firmware(&fw, CX24116_DEFAULT_FIRMWARE, |
| state->i2c->dev.parent); |
| printk(KERN_INFO "%s: Waiting for firmware upload(2)...\n", |
| __func__); |
| if (ret) { |
| printk(KERN_ERR "%s: No firmware uploaded " |
| "(timeout or file not found?)\n", __func__); |
| return ret; |
| } |
| |
| /* Make sure we don't recurse back through here |
| * during loading */ |
| state->skip_fw_load = 1; |
| |
| ret = cx24116_load_firmware(fe, fw); |
| if (ret) |
| printk(KERN_ERR "%s: Writing firmware to device failed\n", |
| __func__); |
| |
| release_firmware(fw); |
| |
| printk(KERN_INFO "%s: Firmware upload %s\n", __func__, |
| ret == 0 ? "complete" : "failed"); |
| |
| /* Ensure firmware is always loaded if required */ |
| state->skip_fw_load = 0; |
| } |
| |
| return ret; |
| } |
| |
| /* Take a basic firmware command structure, format it |
| * and forward it for processing |
| */ |
| static int cx24116_cmd_execute(struct dvb_frontend *fe, struct cx24116_cmd *cmd) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| int i, ret; |
| |
| dprintk("%s()\n", __func__); |
| |
| /* Load the firmware if required */ |
| ret = cx24116_firmware_ondemand(fe); |
| if (ret != 0) { |
| printk(KERN_ERR "%s(): Unable initialise the firmware\n", |
| __func__); |
| return ret; |
| } |
| |
| /* Write the command */ |
| for (i = 0; i < cmd->len ; i++) { |
| dprintk("%s: 0x%02x == 0x%02x\n", __func__, i, cmd->args[i]); |
| cx24116_writereg(state, i, cmd->args[i]); |
| } |
| |
| /* Start execution and wait for cmd to terminate */ |
| cx24116_writereg(state, CX24116_REG_EXECUTE, 0x01); |
| while (cx24116_readreg(state, CX24116_REG_EXECUTE)) { |
| msleep(10); |
| if (i++ > 64) { |
| /* Avoid looping forever if the firmware does |
| not respond */ |
| printk(KERN_WARNING "%s() Firmware not responding\n", |
| __func__); |
| return -EREMOTEIO; |
| } |
| } |
| return 0; |
| } |
| |
| static int cx24116_load_firmware(struct dvb_frontend *fe, |
| const struct firmware *fw) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| struct cx24116_cmd cmd; |
| int i, ret, len, max, remaining; |
| unsigned char vers[4]; |
| |
| dprintk("%s\n", __func__); |
| dprintk("Firmware is %zu bytes (%02x %02x .. %02x %02x)\n", |
| fw->size, |
| fw->data[0], |
| fw->data[1], |
| fw->data[fw->size-2], |
| fw->data[fw->size-1]); |
| |
| /* Toggle 88x SRST pin to reset demod */ |
| if (state->config->reset_device) |
| state->config->reset_device(fe); |
| |
| /* Begin the firmware load process */ |
| /* Prepare the demod, load the firmware, cleanup after load */ |
| |
| /* Init PLL */ |
| cx24116_writereg(state, 0xE5, 0x00); |
| cx24116_writereg(state, 0xF1, 0x08); |
| cx24116_writereg(state, 0xF2, 0x13); |
| |
| /* Start PLL */ |
| cx24116_writereg(state, 0xe0, 0x03); |
| cx24116_writereg(state, 0xe0, 0x00); |
| |
| /* Unknown */ |
| cx24116_writereg(state, CX24116_REG_CLKDIV, 0x46); |
| cx24116_writereg(state, CX24116_REG_RATEDIV, 0x00); |
| |
| /* Unknown */ |
| cx24116_writereg(state, 0xF0, 0x03); |
| cx24116_writereg(state, 0xF4, 0x81); |
| cx24116_writereg(state, 0xF5, 0x00); |
| cx24116_writereg(state, 0xF6, 0x00); |
| |
| /* Split firmware to the max I2C write len and write. |
| * Writes whole firmware as one write when i2c_wr_max is set to 0. */ |
| if (state->config->i2c_wr_max) |
| max = state->config->i2c_wr_max; |
| else |
| max = INT_MAX; /* enough for 32k firmware */ |
| |
| for (remaining = fw->size; remaining > 0; remaining -= max - 1) { |
| len = remaining; |
| if (len > max - 1) |
| len = max - 1; |
| |
| cx24116_writeregN(state, 0xF7, &fw->data[fw->size - remaining], |
| len); |
| } |
| |
| cx24116_writereg(state, 0xF4, 0x10); |
| cx24116_writereg(state, 0xF0, 0x00); |
| cx24116_writereg(state, 0xF8, 0x06); |
| |
| /* Firmware CMD 10: VCO config */ |
| cmd.args[0x00] = CMD_SET_VCO; |
| cmd.args[0x01] = 0x05; |
| cmd.args[0x02] = 0xdc; |
| cmd.args[0x03] = 0xda; |
| cmd.args[0x04] = 0xae; |
| cmd.args[0x05] = 0xaa; |
| cmd.args[0x06] = 0x04; |
| cmd.args[0x07] = 0x9d; |
| cmd.args[0x08] = 0xfc; |
| cmd.args[0x09] = 0x06; |
| cmd.len = 0x0a; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| |
| cx24116_writereg(state, CX24116_REG_SSTATUS, 0x00); |
| |
| /* Firmware CMD 14: Tuner config */ |
| cmd.args[0x00] = CMD_TUNERINIT; |
| cmd.args[0x01] = 0x00; |
| cmd.args[0x02] = 0x00; |
| cmd.len = 0x03; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| |
| cx24116_writereg(state, 0xe5, 0x00); |
| |
| /* Firmware CMD 13: MPEG config */ |
| cmd.args[0x00] = CMD_MPEGCONFIG; |
| cmd.args[0x01] = 0x01; |
| cmd.args[0x02] = 0x75; |
| cmd.args[0x03] = 0x00; |
| if (state->config->mpg_clk_pos_pol) |
| cmd.args[0x04] = state->config->mpg_clk_pos_pol; |
| else |
| cmd.args[0x04] = 0x02; |
| cmd.args[0x05] = 0x00; |
| cmd.len = 0x06; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| |
| /* Firmware CMD 35: Get firmware version */ |
| cmd.args[0x00] = CMD_UPDFWVERS; |
| cmd.len = 0x02; |
| for (i = 0; i < 4; i++) { |
| cmd.args[0x01] = i; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| vers[i] = cx24116_readreg(state, CX24116_REG_MAILBOX); |
| } |
| printk(KERN_INFO "%s: FW version %i.%i.%i.%i\n", __func__, |
| vers[0], vers[1], vers[2], vers[3]); |
| |
| return 0; |
| } |
| |
| static int cx24116_read_status(struct dvb_frontend *fe, fe_status_t *status) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| |
| int lock = cx24116_readreg(state, CX24116_REG_SSTATUS) & |
| CX24116_STATUS_MASK; |
| |
| dprintk("%s: status = 0x%02x\n", __func__, lock); |
| |
| *status = 0; |
| |
| if (lock & CX24116_HAS_SIGNAL) |
| *status |= FE_HAS_SIGNAL; |
| if (lock & CX24116_HAS_CARRIER) |
| *status |= FE_HAS_CARRIER; |
| if (lock & CX24116_HAS_VITERBI) |
| *status |= FE_HAS_VITERBI; |
| if (lock & CX24116_HAS_SYNCLOCK) |
| *status |= FE_HAS_SYNC | FE_HAS_LOCK; |
| |
| return 0; |
| } |
| |
| static int cx24116_read_ber(struct dvb_frontend *fe, u32 *ber) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| |
| dprintk("%s()\n", __func__); |
| |
| *ber = (cx24116_readreg(state, CX24116_REG_BER24) << 24) | |
| (cx24116_readreg(state, CX24116_REG_BER16) << 16) | |
| (cx24116_readreg(state, CX24116_REG_BER8) << 8) | |
| cx24116_readreg(state, CX24116_REG_BER0); |
| |
| return 0; |
| } |
| |
| /* TODO Determine function and scale appropriately */ |
| static int cx24116_read_signal_strength(struct dvb_frontend *fe, |
| u16 *signal_strength) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| struct cx24116_cmd cmd; |
| int ret; |
| u16 sig_reading; |
| |
| dprintk("%s()\n", __func__); |
| |
| /* Firmware CMD 19: Get AGC */ |
| cmd.args[0x00] = CMD_GETAGC; |
| cmd.len = 0x01; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| |
| sig_reading = |
| (cx24116_readreg(state, |
| CX24116_REG_SSTATUS) & CX24116_SIGNAL_MASK) | |
| (cx24116_readreg(state, CX24116_REG_SIGNAL) << 6); |
| *signal_strength = 0 - sig_reading; |
| |
| dprintk("%s: raw / cooked = 0x%04x / 0x%04x\n", |
| __func__, sig_reading, *signal_strength); |
| |
| return 0; |
| } |
| |
| /* SNR (0..100)% = (sig & 0xf0) * 10 + (sig & 0x0f) * 10 / 16 */ |
| static int cx24116_read_snr_pct(struct dvb_frontend *fe, u16 *snr) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| u8 snr_reading; |
| static const u32 snr_tab[] = { /* 10 x Table (rounded up) */ |
| 0x00000, 0x0199A, 0x03333, 0x04ccD, 0x06667, |
| 0x08000, 0x0999A, 0x0b333, 0x0cccD, 0x0e667, |
| 0x10000, 0x1199A, 0x13333, 0x14ccD, 0x16667, |
| 0x18000 }; |
| |
| dprintk("%s()\n", __func__); |
| |
| snr_reading = cx24116_readreg(state, CX24116_REG_QUALITY0); |
| |
| if (snr_reading >= 0xa0 /* 100% */) |
| *snr = 0xffff; |
| else |
| *snr = snr_tab[(snr_reading & 0xf0) >> 4] + |
| (snr_tab[(snr_reading & 0x0f)] >> 4); |
| |
| dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__, |
| snr_reading, *snr); |
| |
| return 0; |
| } |
| |
| /* The reelbox patches show the value in the registers represents |
| * ESNO, from 0->30db (values 0->300). We provide this value by |
| * default. |
| */ |
| static int cx24116_read_snr_esno(struct dvb_frontend *fe, u16 *snr) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| |
| dprintk("%s()\n", __func__); |
| |
| *snr = cx24116_readreg(state, CX24116_REG_QUALITY8) << 8 | |
| cx24116_readreg(state, CX24116_REG_QUALITY0); |
| |
| dprintk("%s: raw 0x%04x\n", __func__, *snr); |
| |
| return 0; |
| } |
| |
| static int cx24116_read_snr(struct dvb_frontend *fe, u16 *snr) |
| { |
| if (esno_snr == 1) |
| return cx24116_read_snr_esno(fe, snr); |
| else |
| return cx24116_read_snr_pct(fe, snr); |
| } |
| |
| static int cx24116_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| |
| dprintk("%s()\n", __func__); |
| |
| *ucblocks = (cx24116_readreg(state, CX24116_REG_UCB8) << 8) | |
| cx24116_readreg(state, CX24116_REG_UCB0); |
| |
| return 0; |
| } |
| |
| /* Overwrite the current tuning params, we are about to tune */ |
| static void cx24116_clone_params(struct dvb_frontend *fe) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| state->dcur = state->dnxt; |
| } |
| |
| /* Wait for LNB */ |
| static int cx24116_wait_for_lnb(struct dvb_frontend *fe) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| int i; |
| |
| dprintk("%s() qstatus = 0x%02x\n", __func__, |
| cx24116_readreg(state, CX24116_REG_QSTATUS)); |
| |
| /* Wait for up to 300 ms */ |
| for (i = 0; i < 30 ; i++) { |
| if (cx24116_readreg(state, CX24116_REG_QSTATUS) & 0x20) |
| return 0; |
| msleep(10); |
| } |
| |
| dprintk("%s(): LNB not ready\n", __func__); |
| |
| return -ETIMEDOUT; /* -EBUSY ? */ |
| } |
| |
| static int cx24116_set_voltage(struct dvb_frontend *fe, |
| fe_sec_voltage_t voltage) |
| { |
| struct cx24116_cmd cmd; |
| int ret; |
| |
| dprintk("%s: %s\n", __func__, |
| voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : |
| voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??"); |
| |
| /* Wait for LNB ready */ |
| ret = cx24116_wait_for_lnb(fe); |
| if (ret != 0) |
| return ret; |
| |
| /* Wait for voltage/min repeat delay */ |
| msleep(100); |
| |
| cmd.args[0x00] = CMD_LNBDCLEVEL; |
| cmd.args[0x01] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00); |
| cmd.len = 0x02; |
| |
| /* Min delay time before DiSEqC send */ |
| msleep(15); |
| |
| return cx24116_cmd_execute(fe, &cmd); |
| } |
| |
| static int cx24116_set_tone(struct dvb_frontend *fe, |
| fe_sec_tone_mode_t tone) |
| { |
| struct cx24116_cmd cmd; |
| int ret; |
| |
| dprintk("%s(%d)\n", __func__, tone); |
| if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) { |
| printk(KERN_ERR "%s: Invalid, tone=%d\n", __func__, tone); |
| return -EINVAL; |
| } |
| |
| /* Wait for LNB ready */ |
| ret = cx24116_wait_for_lnb(fe); |
| if (ret != 0) |
| return ret; |
| |
| /* Min delay time after DiSEqC send */ |
| msleep(15); /* XXX determine is FW does this, see send_diseqc/burst */ |
| |
| /* Now we set the tone */ |
| cmd.args[0x00] = CMD_SET_TONE; |
| cmd.args[0x01] = 0x00; |
| cmd.args[0x02] = 0x00; |
| |
| switch (tone) { |
| case SEC_TONE_ON: |
| dprintk("%s: setting tone on\n", __func__); |
| cmd.args[0x03] = 0x01; |
| break; |
| case SEC_TONE_OFF: |
| dprintk("%s: setting tone off\n", __func__); |
| cmd.args[0x03] = 0x00; |
| break; |
| } |
| cmd.len = 0x04; |
| |
| /* Min delay time before DiSEqC send */ |
| msleep(15); /* XXX determine is FW does this, see send_diseqc/burst */ |
| |
| return cx24116_cmd_execute(fe, &cmd); |
| } |
| |
| /* Initialise DiSEqC */ |
| static int cx24116_diseqc_init(struct dvb_frontend *fe) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| struct cx24116_cmd cmd; |
| int ret; |
| |
| /* Firmware CMD 20: LNB/DiSEqC config */ |
| cmd.args[0x00] = CMD_LNBCONFIG; |
| cmd.args[0x01] = 0x00; |
| cmd.args[0x02] = 0x10; |
| cmd.args[0x03] = 0x00; |
| cmd.args[0x04] = 0x8f; |
| cmd.args[0x05] = 0x28; |
| cmd.args[0x06] = (toneburst == CX24116_DISEQC_TONEOFF) ? 0x00 : 0x01; |
| cmd.args[0x07] = 0x01; |
| cmd.len = 0x08; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| |
| /* Prepare a DiSEqC command */ |
| state->dsec_cmd.args[0x00] = CMD_LNBSEND; |
| |
| /* DiSEqC burst */ |
| state->dsec_cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_A; |
| |
| /* Unknown */ |
| state->dsec_cmd.args[CX24116_DISEQC_ARG2_2] = 0x02; |
| state->dsec_cmd.args[CX24116_DISEQC_ARG3_0] = 0x00; |
| /* Continuation flag? */ |
| state->dsec_cmd.args[CX24116_DISEQC_ARG4_0] = 0x00; |
| |
| /* DiSEqC message length */ |
| state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] = 0x00; |
| |
| /* Command length */ |
| state->dsec_cmd.len = CX24116_DISEQC_MSGOFS; |
| |
| return 0; |
| } |
| |
| /* Send DiSEqC message with derived burst (hack) || previous burst */ |
| static int cx24116_send_diseqc_msg(struct dvb_frontend *fe, |
| struct dvb_diseqc_master_cmd *d) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| int i, ret; |
| |
| /* Validate length */ |
| if (d->msg_len > sizeof(d->msg)) |
| return -EINVAL; |
| |
| /* Dump DiSEqC message */ |
| if (debug) { |
| printk(KERN_INFO "cx24116: %s(", __func__); |
| for (i = 0 ; i < d->msg_len ;) { |
| printk(KERN_INFO "0x%02x", d->msg[i]); |
| if (++i < d->msg_len) |
| printk(KERN_INFO ", "); |
| } |
| printk(") toneburst=%d\n", toneburst); |
| } |
| |
| /* DiSEqC message */ |
| for (i = 0; i < d->msg_len; i++) |
| state->dsec_cmd.args[CX24116_DISEQC_MSGOFS + i] = d->msg[i]; |
| |
| /* DiSEqC message length */ |
| state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] = d->msg_len; |
| |
| /* Command length */ |
| state->dsec_cmd.len = CX24116_DISEQC_MSGOFS + |
| state->dsec_cmd.args[CX24116_DISEQC_MSGLEN]; |
| |
| /* DiSEqC toneburst */ |
| if (toneburst == CX24116_DISEQC_MESGCACHE) |
| /* Message is cached */ |
| return 0; |
| |
| else if (toneburst == CX24116_DISEQC_TONEOFF) |
| /* Message is sent without burst */ |
| state->dsec_cmd.args[CX24116_DISEQC_BURST] = 0; |
| |
| else if (toneburst == CX24116_DISEQC_TONECACHE) { |
| /* |
| * Message is sent with derived else cached burst |
| * |
| * WRITE PORT GROUP COMMAND 38 |
| * |
| * 0/A/A: E0 10 38 F0..F3 |
| * 1/B/B: E0 10 38 F4..F7 |
| * 2/C/A: E0 10 38 F8..FB |
| * 3/D/B: E0 10 38 FC..FF |
| * |
| * databyte[3]= 8421:8421 |
| * ABCD:WXYZ |
| * CLR :SET |
| * |
| * WX= PORT SELECT 0..3 (X=TONEBURST) |
| * Y = VOLTAGE (0=13V, 1=18V) |
| * Z = BAND (0=LOW, 1=HIGH(22K)) |
| */ |
| if (d->msg_len >= 4 && d->msg[2] == 0x38) |
| state->dsec_cmd.args[CX24116_DISEQC_BURST] = |
| ((d->msg[3] & 4) >> 2); |
| if (debug) |
| dprintk("%s burst=%d\n", __func__, |
| state->dsec_cmd.args[CX24116_DISEQC_BURST]); |
| } |
| |
| /* Wait for LNB ready */ |
| ret = cx24116_wait_for_lnb(fe); |
| if (ret != 0) |
| return ret; |
| |
| /* Wait for voltage/min repeat delay */ |
| msleep(100); |
| |
| /* Command */ |
| ret = cx24116_cmd_execute(fe, &state->dsec_cmd); |
| if (ret != 0) |
| return ret; |
| /* |
| * Wait for send |
| * |
| * Eutelsat spec: |
| * >15ms delay + (XXX determine if FW does this, see set_tone) |
| * 13.5ms per byte + |
| * >15ms delay + |
| * 12.5ms burst + |
| * >15ms delay (XXX determine if FW does this, see set_tone) |
| */ |
| msleep((state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] << 4) + |
| ((toneburst == CX24116_DISEQC_TONEOFF) ? 30 : 60)); |
| |
| return 0; |
| } |
| |
| /* Send DiSEqC burst */ |
| static int cx24116_diseqc_send_burst(struct dvb_frontend *fe, |
| fe_sec_mini_cmd_t burst) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| int ret; |
| |
| dprintk("%s(%d) toneburst=%d\n", __func__, burst, toneburst); |
| |
| /* DiSEqC burst */ |
| if (burst == SEC_MINI_A) |
| state->dsec_cmd.args[CX24116_DISEQC_BURST] = |
| CX24116_DISEQC_MINI_A; |
| else if (burst == SEC_MINI_B) |
| state->dsec_cmd.args[CX24116_DISEQC_BURST] = |
| CX24116_DISEQC_MINI_B; |
| else |
| return -EINVAL; |
| |
| /* DiSEqC toneburst */ |
| if (toneburst != CX24116_DISEQC_MESGCACHE) |
| /* Burst is cached */ |
| return 0; |
| |
| /* Burst is to be sent with cached message */ |
| |
| /* Wait for LNB ready */ |
| ret = cx24116_wait_for_lnb(fe); |
| if (ret != 0) |
| return ret; |
| |
| /* Wait for voltage/min repeat delay */ |
| msleep(100); |
| |
| /* Command */ |
| ret = cx24116_cmd_execute(fe, &state->dsec_cmd); |
| if (ret != 0) |
| return ret; |
| |
| /* |
| * Wait for send |
| * |
| * Eutelsat spec: |
| * >15ms delay + (XXX determine if FW does this, see set_tone) |
| * 13.5ms per byte + |
| * >15ms delay + |
| * 12.5ms burst + |
| * >15ms delay (XXX determine if FW does this, see set_tone) |
| */ |
| msleep((state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] << 4) + 60); |
| |
| return 0; |
| } |
| |
| static void cx24116_release(struct dvb_frontend *fe) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| dprintk("%s\n", __func__); |
| kfree(state); |
| } |
| |
| static struct dvb_frontend_ops cx24116_ops; |
| |
| struct dvb_frontend *cx24116_attach(const struct cx24116_config *config, |
| struct i2c_adapter *i2c) |
| { |
| struct cx24116_state *state = NULL; |
| int ret; |
| |
| dprintk("%s\n", __func__); |
| |
| /* allocate memory for the internal state */ |
| state = kzalloc(sizeof(struct cx24116_state), GFP_KERNEL); |
| if (state == NULL) |
| goto error1; |
| |
| state->config = config; |
| state->i2c = i2c; |
| |
| /* check if the demod is present */ |
| ret = (cx24116_readreg(state, 0xFF) << 8) | |
| cx24116_readreg(state, 0xFE); |
| if (ret != 0x0501) { |
| printk(KERN_INFO "Invalid probe, probably not a CX24116 device\n"); |
| goto error2; |
| } |
| |
| /* create dvb_frontend */ |
| memcpy(&state->frontend.ops, &cx24116_ops, |
| sizeof(struct dvb_frontend_ops)); |
| state->frontend.demodulator_priv = state; |
| return &state->frontend; |
| |
| error2: kfree(state); |
| error1: return NULL; |
| } |
| EXPORT_SYMBOL(cx24116_attach); |
| |
| /* |
| * Initialise or wake up device |
| * |
| * Power config will reset and load initial firmware if required |
| */ |
| static int cx24116_initfe(struct dvb_frontend *fe) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| struct cx24116_cmd cmd; |
| int ret; |
| |
| dprintk("%s()\n", __func__); |
| |
| /* Power on */ |
| cx24116_writereg(state, 0xe0, 0); |
| cx24116_writereg(state, 0xe1, 0); |
| cx24116_writereg(state, 0xea, 0); |
| |
| /* Firmware CMD 36: Power config */ |
| cmd.args[0x00] = CMD_TUNERSLEEP; |
| cmd.args[0x01] = 0; |
| cmd.len = 0x02; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| |
| ret = cx24116_diseqc_init(fe); |
| if (ret != 0) |
| return ret; |
| |
| /* HVR-4000 needs this */ |
| return cx24116_set_voltage(fe, SEC_VOLTAGE_13); |
| } |
| |
| /* |
| * Put device to sleep |
| */ |
| static int cx24116_sleep(struct dvb_frontend *fe) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| struct cx24116_cmd cmd; |
| int ret; |
| |
| dprintk("%s()\n", __func__); |
| |
| /* Firmware CMD 36: Power config */ |
| cmd.args[0x00] = CMD_TUNERSLEEP; |
| cmd.args[0x01] = 1; |
| cmd.len = 0x02; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| |
| /* Power off (Shutdown clocks) */ |
| cx24116_writereg(state, 0xea, 0xff); |
| cx24116_writereg(state, 0xe1, 1); |
| cx24116_writereg(state, 0xe0, 1); |
| |
| return 0; |
| } |
| |
| /* dvb-core told us to tune, the tv property cache will be complete, |
| * it's safe for is to pull values and use them for tuning purposes. |
| */ |
| static int cx24116_set_frontend(struct dvb_frontend *fe) |
| { |
| struct cx24116_state *state = fe->demodulator_priv; |
| struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| struct cx24116_cmd cmd; |
| fe_status_t tunerstat; |
| int i, status, ret, retune = 1; |
| |
| dprintk("%s()\n", __func__); |
| |
| switch (c->delivery_system) { |
| case SYS_DVBS: |
| dprintk("%s: DVB-S delivery system selected\n", __func__); |
| |
| /* Only QPSK is supported for DVB-S */ |
| if (c->modulation != QPSK) { |
| dprintk("%s: unsupported modulation selected (%d)\n", |
| __func__, c->modulation); |
| return -EOPNOTSUPP; |
| } |
| |
| /* Pilot doesn't exist in DVB-S, turn bit off */ |
| state->dnxt.pilot_val = CX24116_PILOT_OFF; |
| |
| /* DVB-S only supports 0.35 */ |
| if (c->rolloff != ROLLOFF_35) { |
| dprintk("%s: unsupported rolloff selected (%d)\n", |
| __func__, c->rolloff); |
| return -EOPNOTSUPP; |
| } |
| state->dnxt.rolloff_val = CX24116_ROLLOFF_035; |
| break; |
| |
| case SYS_DVBS2: |
| dprintk("%s: DVB-S2 delivery system selected\n", __func__); |
| |
| /* |
| * NBC 8PSK/QPSK with DVB-S is supported for DVB-S2, |
| * but not hardware auto detection |
| */ |
| if (c->modulation != PSK_8 && c->modulation != QPSK) { |
| dprintk("%s: unsupported modulation selected (%d)\n", |
| __func__, c->modulation); |
| return -EOPNOTSUPP; |
| } |
| |
| switch (c->pilot) { |
| case PILOT_AUTO: /* Not supported but emulated */ |
| state->dnxt.pilot_val = (c->modulation == QPSK) |
| ? CX24116_PILOT_OFF : CX24116_PILOT_ON; |
| retune++; |
| break; |
| case PILOT_OFF: |
| state->dnxt.pilot_val = CX24116_PILOT_OFF; |
| break; |
| case PILOT_ON: |
| state->dnxt.pilot_val = CX24116_PILOT_ON; |
| break; |
| default: |
| dprintk("%s: unsupported pilot mode selected (%d)\n", |
| __func__, c->pilot); |
| return -EOPNOTSUPP; |
| } |
| |
| switch (c->rolloff) { |
| case ROLLOFF_20: |
| state->dnxt.rolloff_val = CX24116_ROLLOFF_020; |
| break; |
| case ROLLOFF_25: |
| state->dnxt.rolloff_val = CX24116_ROLLOFF_025; |
| break; |
| case ROLLOFF_35: |
| state->dnxt.rolloff_val = CX24116_ROLLOFF_035; |
| break; |
| case ROLLOFF_AUTO: /* Rolloff must be explicit */ |
| default: |
| dprintk("%s: unsupported rolloff selected (%d)\n", |
| __func__, c->rolloff); |
| return -EOPNOTSUPP; |
| } |
| break; |
| |
| default: |
| dprintk("%s: unsupported delivery system selected (%d)\n", |
| __func__, c->delivery_system); |
| return -EOPNOTSUPP; |
| } |
| state->dnxt.delsys = c->delivery_system; |
| state->dnxt.modulation = c->modulation; |
| state->dnxt.frequency = c->frequency; |
| state->dnxt.pilot = c->pilot; |
| state->dnxt.rolloff = c->rolloff; |
| |
| ret = cx24116_set_inversion(state, c->inversion); |
| if (ret != 0) |
| return ret; |
| |
| /* FEC_NONE/AUTO for DVB-S2 is not supported and detected here */ |
| ret = cx24116_set_fec(state, c->delivery_system, c->modulation, c->fec_inner); |
| if (ret != 0) |
| return ret; |
| |
| ret = cx24116_set_symbolrate(state, c->symbol_rate); |
| if (ret != 0) |
| return ret; |
| |
| /* discard the 'current' tuning parameters and prepare to tune */ |
| cx24116_clone_params(fe); |
| |
| dprintk("%s: delsys = %d\n", __func__, state->dcur.delsys); |
| dprintk("%s: modulation = %d\n", __func__, state->dcur.modulation); |
| dprintk("%s: frequency = %d\n", __func__, state->dcur.frequency); |
| dprintk("%s: pilot = %d (val = 0x%02x)\n", __func__, |
| state->dcur.pilot, state->dcur.pilot_val); |
| dprintk("%s: retune = %d\n", __func__, retune); |
| dprintk("%s: rolloff = %d (val = 0x%02x)\n", __func__, |
| state->dcur.rolloff, state->dcur.rolloff_val); |
| dprintk("%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate); |
| dprintk("%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__, |
| state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val); |
| dprintk("%s: Inversion = %d (val = 0x%02x)\n", __func__, |
| state->dcur.inversion, state->dcur.inversion_val); |
| |
| /* This is also done in advise/acquire on HVR4000 but not on LITE */ |
| if (state->config->set_ts_params) |
| state->config->set_ts_params(fe, 0); |
| |
| /* Set/Reset B/W */ |
| cmd.args[0x00] = CMD_BANDWIDTH; |
| cmd.args[0x01] = 0x01; |
| cmd.len = 0x02; |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| return ret; |
| |
| /* Prepare a tune request */ |
| cmd.args[0x00] = CMD_TUNEREQUEST; |
| |
| /* Frequency */ |
| cmd.args[0x01] = (state->dcur.frequency & 0xff0000) >> 16; |
| cmd.args[0x02] = (state->dcur.frequency & 0x00ff00) >> 8; |
| cmd.args[0x03] = (state->dcur.frequency & 0x0000ff); |
| |
| /* Symbol Rate */ |
| cmd.args[0x04] = ((state->dcur.symbol_rate / 1000) & 0xff00) >> 8; |
| cmd.args[0x05] = ((state->dcur.symbol_rate / 1000) & 0x00ff); |
| |
| /* Automatic Inversion */ |
| cmd.args[0x06] = state->dcur.inversion_val; |
| |
| /* Modulation / FEC / Pilot */ |
| cmd.args[0x07] = state->dcur.fec_val | state->dcur.pilot_val; |
| |
| cmd.args[0x08] = CX24116_SEARCH_RANGE_KHZ >> 8; |
| cmd.args[0x09] = CX24116_SEARCH_RANGE_KHZ & 0xff; |
| cmd.args[0x0a] = 0x00; |
| cmd.args[0x0b] = 0x00; |
| cmd.args[0x0c] = state->dcur.rolloff_val; |
| cmd.args[0x0d] = state->dcur.fec_mask; |
| |
| if (state->dcur.symbol_rate > 30000000) { |
| cmd.args[0x0e] = 0x04; |
| cmd.args[0x0f] = 0x00; |
| cmd.args[0x10] = 0x01; |
| cmd.args[0x11] = 0x77; |
| cmd.args[0x12] = 0x36; |
| cx24116_writereg(state, CX24116_REG_CLKDIV, 0x44); |
| cx24116_writereg(state, CX24116_REG_RATEDIV, 0x01); |
| } else { |
| cmd.args[0x0e] = 0x06; |
| cmd.args[0x0f] = 0x00; |
| cmd.args[0x10] = 0x00; |
| cmd.args[0x11] = 0xFA; |
| cmd.args[0x12] = 0x24; |
| cx24116_writereg(state, CX24116_REG_CLKDIV, 0x46); |
| cx24116_writereg(state, CX24116_REG_RATEDIV, 0x00); |
| } |
| |
| cmd.len = 0x13; |
| |
| /* We need to support pilot and non-pilot tuning in the |
| * driver automatically. This is a workaround for because |
| * the demod does not support autodetect. |
| */ |
| do { |
| /* Reset status register */ |
| status = cx24116_readreg(state, CX24116_REG_SSTATUS) |
| & CX24116_SIGNAL_MASK; |
| cx24116_writereg(state, CX24116_REG_SSTATUS, status); |
| |
| /* Tune */ |
| ret = cx24116_cmd_execute(fe, &cmd); |
| if (ret != 0) |
| break; |
| |
| /* |
| * Wait for up to 500 ms before retrying |
| * |
| * If we are able to tune then generally it occurs within 100ms. |
| * If it takes longer, try a different toneburst setting. |
| */ |
| for (i = 0; i < 50 ; i++) { |
| cx24116_read_status(fe, &tunerstat); |
| status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC); |
| if (status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) { |
| dprintk("%s: Tuned\n", __func__); |
| goto tuned; |
| } |
| msleep(10); |
| } |
| |
| dprintk("%s: Not tuned\n", __func__); |
| |
| /* Toggle pilot bit when in auto-pilot */ |
| if (state->dcur.pilot == PILOT_AUTO) |
| cmd.args[0x07] ^= CX24116_PILOT_ON; |
| } while (--retune); |
| |
| tuned: /* Set/Reset B/W */ |
| cmd.args[0x00] = CMD_BANDWIDTH; |
| cmd.args[0x01] = 0x00; |
| cmd.len = 0x02; |
| return cx24116_cmd_execute(fe, &cmd); |
| } |
| |
| static int cx24116_tune(struct dvb_frontend *fe, bool re_tune, |
| unsigned int mode_flags, unsigned int *delay, fe_status_t *status) |
| { |
| /* |
| * It is safe to discard "params" here, as the DVB core will sync |
| * fe->dtv_property_cache with fepriv->parameters_in, where the |
| * DVBv3 params are stored. The only practical usage for it indicate |
| * that re-tuning is needed, e. g. (fepriv->state & FESTATE_RETUNE) is |
| * true. |
| */ |
| |
| *delay = HZ / 5; |
| if (re_tune) { |
| int ret = cx24116_set_frontend(fe); |
| if (ret) |
| return ret; |
| } |
| return cx24116_read_status(fe, status); |
| } |
| |
| static int cx24116_get_algo(struct dvb_frontend *fe) |
| { |
| return DVBFE_ALGO_HW; |
| } |
| |
| static struct dvb_frontend_ops cx24116_ops = { |
| .delsys = { SYS_DVBS, SYS_DVBS2 }, |
| .info = { |
| .name = "Conexant CX24116/CX24118", |
| .frequency_min = 950000, |
| .frequency_max = 2150000, |
| .frequency_stepsize = 1011, /* kHz for QPSK frontends */ |
| .frequency_tolerance = 5000, |
| .symbol_rate_min = 1000000, |
| .symbol_rate_max = 45000000, |
| .caps = FE_CAN_INVERSION_AUTO | |
| FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
| FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | |
| FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | |
| FE_CAN_2G_MODULATION | |
| FE_CAN_QPSK | FE_CAN_RECOVER |
| }, |
| |
| .release = cx24116_release, |
| |
| .init = cx24116_initfe, |
| .sleep = cx24116_sleep, |
| .read_status = cx24116_read_status, |
| .read_ber = cx24116_read_ber, |
| .read_signal_strength = cx24116_read_signal_strength, |
| .read_snr = cx24116_read_snr, |
| .read_ucblocks = cx24116_read_ucblocks, |
| .set_tone = cx24116_set_tone, |
| .set_voltage = cx24116_set_voltage, |
| .diseqc_send_master_cmd = cx24116_send_diseqc_msg, |
| .diseqc_send_burst = cx24116_diseqc_send_burst, |
| .get_frontend_algo = cx24116_get_algo, |
| .tune = cx24116_tune, |
| |
| .set_frontend = cx24116_set_frontend, |
| }; |
| |
| MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24116/cx24118 hardware"); |
| MODULE_AUTHOR("Steven Toth"); |
| MODULE_LICENSE("GPL"); |
| |