diff options
| -rw-r--r-- | drivers/media/dvb/frontends/cx24116.c | 808 |
1 files changed, 617 insertions, 191 deletions
diff --git a/drivers/media/dvb/frontends/cx24116.c b/drivers/media/dvb/frontends/cx24116.c index 0ac2c549308..cfb265de522 100644 --- a/drivers/media/dvb/frontends/cx24116.c +++ b/drivers/media/dvb/frontends/cx24116.c @@ -2,6 +2,18 @@ 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). 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 @@ -18,51 +30,69 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* - * Updates by Darron Broad 2007. - * - * March - * Fixed some bugs. - * Added diseqc support. - * Added corrected signal strength support. - * - * August - * Sync with legacy version. - * Some clean ups. - */ -/* Updates by Igor Liplianin - * - * September, 9th 2008 - * Fixed locking on high symbol rates (>30000). - */ - #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 <linux/sysctl.h> #include "dvb_frontend.h" #include "cx24116.h" -/* - * Fetch firmware in the following manner. - * - * #!/bin/sh - * wget ftp://167.206.143.11/outgoing/Oxford/88x_2_117_24275_1_INF.zip - * unzip 88x_2_117_24275_1_INF.zip - * dd if=Driver88/hcw88bda.sys of=dvb-fe-cx24116.fw skip=81768 bs=1 count=32522 - */ +static int debug = 0; +#define dprintk(args...) \ + do { \ + if (debug) printk ("cx24116: " args); \ + } while (0) + #define CX24116_DEFAULT_FIRMWARE "dvb-fe-cx24116.fw" #define CX24116_SEARCH_RANGE_KHZ 5000 -/* registers (TO BE COMPLETED) */ -#define CX24116_REG_SIGNAL (0xd5) +/* 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_QSTATUS (0xbc) +#define CX24116_REG_QUALITY (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) /* 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 (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 (0x3f) +#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 */ @@ -75,21 +105,88 @@ #define CX24116_DISEQC_MINI_A (0) #define CX24116_DISEQC_MINI_B (1) -static int debug = 0; -#define dprintk(args...) \ - do { \ - if (debug) printk ("cx24116: " args); \ - } while (0) +/* DiSEqC tone burst */ +static int toneburst = 1; + +/* debug & toneburst sysctl */ +static struct ctl_table_header *kernel_table_header; +static ctl_table toneburst_table[] = { +{ + .ctl_name = 0, + .procname = "toneburst", + .data = &toneburst, + .maxlen = sizeof(int), + .mode = 0666, + .child = NULL, + .parent = NULL, + .proc_handler = &proc_dointvec, + .strategy = NULL, + .extra1 = NULL, + .extra2 = NULL, +}, +{ + .ctl_name = 0, + .procname = "debug", + .data = &debug, + .maxlen = sizeof(int), + .mode = 0666, + .child = NULL, + .parent = NULL, + .proc_handler = &proc_dointvec, + .strategy = NULL, + .extra1 = NULL, + .extra2 = NULL, + }, + {0}, +}; +static ctl_table cx24116_table[] = { +{ + .ctl_name = 0, + .procname = "cx24116", + .data = NULL, + .maxlen = 0, + .mode = 0555, + .child = toneburst_table, + .parent = NULL, + .proc_handler = NULL, + .strategy = NULL, + .extra1 = NULL, + .extra2 = NULL, + }, + {0}, +}; +static ctl_table kernel_table[] = { +{ + .ctl_name = CTL_DEV, + .procname = "dev", + .data = NULL, + .maxlen = 0, + .mode = 0555, + .child = cx24116_table, + .parent = NULL, + .proc_handler = NULL, + .strategy = NULL, + .extra1 = NULL, + .extra2 = NULL, + }, + {0}, +}; enum cmds { - CMD_INIT_CMD10 = 0x10, + CMD_SET_VCO = 0x10, CMD_TUNEREQUEST = 0x11, - CMD_INIT_CMD13 = 0x13, - CMD_INIT_CMD14 = 0x14, - CMD_SEND_DISEQC = 0x21, + CMD_MPEGCONFIG = 0x13, + CMD_TUNERINIT = 0x14, + CMD_BANDWIDTH = 0x15, + CMD_GETAGC = 0x19, + CMD_LNBCONFIG = 0x20, + CMD_LNBSEND = 0x21, /* Formerly CMD_SEND_DISEQC */ CMD_SET_TONEPRE = 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 */ @@ -101,11 +198,14 @@ struct cx24116_tuning fe_code_rate_t fec; fe_modulation_t modulation; + fe_pilot_t pilot; + fe_rolloff_t rolloff; /* Demod values */ u8 fec_val; u8 fec_mask; u8 inversion_val; + u8 rolloff_val; }; /* Basic commands that are sent to the firmware */ @@ -127,6 +227,7 @@ struct cx24116_state u8 skip_fw_load; u8 burst; + struct cx24116_cmd dsec_cmd; }; static int cx24116_writereg(struct cx24116_state* state, int reg, int data) @@ -233,6 +334,66 @@ static int cx24116_set_inversion(struct cx24116_state* state, fe_spectral_invers 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 00000000 | FE_HAS_LOCK + * + * mask/val = 0x04, 0x30 + * status 1f | signal c3c0 | snr a333 | ber 00000000 | unc 00000000 | 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. @@ -244,15 +405,17 @@ struct cx24116_modfec { 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 */ { QPSK, FEC_NONE, 0xfe, 0x30 }, - { QPSK, FEC_1_2, 0x02, 0x2e }, - { QPSK, FEC_2_3, 0x04, 0x2f }, - { QPSK, FEC_3_4, 0x08, 0x30 }, - { QPSK, FEC_4_5, 0xfe, 0x30 }, - { QPSK, FEC_5_6, 0x20, 0x31 }, - { QPSK, FEC_6_7, 0xfe, 0x30 }, - { QPSK, FEC_7_8, 0x80, 0x32 }, - { QPSK, FEC_8_9, 0xfe, 0x30 }, + { QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */ + { QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */ + { QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */ + { QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */ + { QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */ + { QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */ + { QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */ + { QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */ { QPSK, FEC_AUTO, 0xfe, 0x30 }, /* NBC-QPSK */ { NBC_QPSK, FEC_1_2, 0x00, 0x04 }, @@ -268,7 +431,12 @@ struct cx24116_modfec { { _8PSK, FEC_2_3, 0x00, 0x0d }, { _8PSK, FEC_3_4, 0x00, 0x0e }, { _8PSK, FEC_5_6, 0x00, 0x0f }, + { _8PSK, FEC_8_9, 0x00, 0x10 }, { _8PSK, 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, @@ -276,6 +444,8 @@ static int cx24116_lookup_fecmod(struct cx24116_state* state, { int i, ret = -EOPNOTSUPP; + dprintk("%s(0x%02x,0x%02x)\n", __func__, m, f); + for(i=0 ; i < sizeof(CX24116_MODFEC_MODES) / sizeof(struct cx24116_modfec) ; i++) { if( (m == CX24116_MODFEC_MODES[i].modulation) && @@ -292,37 +462,38 @@ static int cx24116_lookup_fecmod(struct cx24116_state* state, static int cx24116_set_fec(struct cx24116_state* state, fe_modulation_t mod, fe_code_rate_t fec) { int ret = 0; - dprintk("%s()\n", __func__); + + dprintk("%s(0x%02x,0x%02x)\n", __func__, mod, fec); ret = cx24116_lookup_fecmod(state, 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() fec_val/mask = 0x%02x/0x%02x\n", __func__, - state->dnxt.fec_val, state->dnxt.fec_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) { - int ret = 0; + dprintk("%s(%d)\n", __func__, rate); - dprintk("%s()\n", __func__); + /* 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); - dprintk("%s() symbol_rate = %d\n", __func__, state->dnxt.symbol_rate); - - /* check if symbol rate is within limits */ - if ((state->dnxt.symbol_rate > state->frontend.ops.info.symbol_rate_max) || - (state->dnxt.symbol_rate < state->frontend.ops.info.symbol_rate_min)) - ret = -EOPNOTSUPP; - - return ret; + return 0; } static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware *fw); @@ -392,8 +563,8 @@ static int cx24116_cmd_execute(struct dvb_frontend* fe, struct cx24116_cmd *cmd) } /* Start execution and wait for cmd to terminate */ - cx24116_writereg(state, 0x1f, 0x01); - while( cx24116_readreg(state, 0x1f) ) + cx24116_writereg(state, CX24116_REG_EXECUTE, 0x01); + while( cx24116_readreg(state, CX24116_REG_EXECUTE) ) { msleep(10); if(i++ > 64) @@ -410,7 +581,8 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware { struct cx24116_state* state = fe->demodulator_priv; struct cx24116_cmd cmd; - int ret; + int i, ret; + unsigned char vers[4]; dprintk("%s\n", __func__); dprintk("Firmware is %zu bytes (%02x %02x .. %02x %02x)\n" @@ -427,11 +599,21 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware /* 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, cx24116_readreg(state, 0xF2) | 0x03); - cx24116_writereg(state, 0xF3, 0x46); - cx24116_writereg(state, 0xF9, 0x00); + 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); @@ -444,8 +626,8 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware cx24116_writereg(state, 0xF0, 0x00); cx24116_writereg(state, 0xF8, 0x06); - /* Firmware CMD 10: Chip config? */ - cmd.args[0x00] = CMD_INIT_CMD10; + /* Firmware CMD 10: VCO config */ + cmd.args[0x00] = CMD_SET_VCO; cmd.args[0x01] = 0x05; cmd.args[0x02] = 0xdc; cmd.args[0x03] = 0xda; @@ -460,10 +642,10 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware if (ret != 0) return ret; - cx24116_writereg(state, 0x9d, 0x00); + cx24116_writereg(state, CX24116_REG_SSTATUS, 0x00); - /* Firmware CMD 14: Unknown */ - cmd.args[0x00] = CMD_INIT_CMD14; + /* Firmware CMD 14: Tuner config */ + cmd.args[0x00] = CMD_TUNERINIT; cmd.args[0x01] = 0x00; cmd.args[0x02] = 0x00; cmd.len= 0x03; @@ -473,8 +655,8 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware cx24116_writereg(state, 0xe5, 0x00); - /* Firmware CMD 13: Unknown - Firmware config? */ - cmd.args[0x00] = CMD_INIT_CMD13; + /* Firmware CMD 13: MPEG config */ + cmd.args[0x00] = CMD_MPEGCONFIG; cmd.args[0x01] = 0x01; cmd.args[0x02] = 0x75; cmd.args[0x03] = 0x00; @@ -488,6 +670,19 @@ static int cx24116_load_firmware (struct dvb_frontend* fe, const struct firmware 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("%s: FW version %i.%i.%i.%i\n", __func__, + vers[0], vers[1], vers[2], vers[3]); + return 0; } @@ -503,75 +698,98 @@ 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, 0x9d); + int lock = cx24116_readreg(state, CX24116_REG_SSTATUS); dprintk("%s: status = 0x%02x\n", __func__, lock); *status = 0; - if (lock & 0x01) + if (lock & CX24116_HAS_SIGNAL) *status |= FE_HAS_SIGNAL; - if (lock & 0x02) + if (lock & CX24116_HAS_CARRIER) *status |= FE_HAS_CARRIER; - if (lock & 0x04) + if (lock & CX24116_HAS_VITERBI) *status |= FE_HAS_VITERBI; - if (lock & 0x08) + if (lock & CX24116_HAS_SYNCLOCK) *status |= FE_HAS_SYNC | FE_HAS_LOCK; return 0; } -/* TODO: Not clear how we do this */ static int cx24116_read_ber(struct dvb_frontend* fe, u32* ber) { - //struct cx24116_state *state = fe->demodulator_priv; + struct cx24116_state *state = fe->demodulator_priv; + dprintk("%s()\n", __func__); - *ber = 0; + + *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; } -/* Signal strength (0..100)% = (sig & 0xf0) * 10 + (sig & 0x0f) * 10 / 16 */ +/* 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; - u8 strength_reg; - static const u32 strength_tab[] = { /* 10 x Table (rounded up) */ - 0x00000,0x0199A,0x03333,0x04ccD,0x06667,0x08000,0x0999A,0x0b333,0x0cccD,0x0e667, - 0x10000,0x1199A,0x13333,0x14ccD,0x16667,0x18000 }; + struct cx24116_cmd cmd; + int ret; + u16 sig_reading; dprintk("%s()\n", __func__); - strength_reg = cx24116_readreg(state, CX24116_REG_SIGNAL); + /* Firmware CMD 19: Get AGC */ + cmd.args[0x00] = CMD_GETAGC; + cmd.len= 0x01; + ret = cx24116_cmd_execute(fe, &cmd); + if (ret != 0) + return ret; - if(strength_reg < 0xa0) - *signal_strength = strength_tab [ ( strength_reg & 0xf0 ) >> 4 ] + - ( strength_tab [ ( strength_reg & 0x0f ) ] >> 4 ); - else - *signal_strength = 0xffff; + 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: Signal strength (raw / cooked) = (0x%02x / 0x%04x)\n", - __func__,strength_reg,*signal_strength); + dprintk("%s: raw / cooked = 0x%04x / 0x%04x\n", __func__, sig_reading, *signal_strength); return 0; } -/* TODO: Not clear how we do this */ +/* SNR (0..100)% = (sig & 0xf0) * 10 + (sig & 0x0f) * 10 / 16 */ static int cx24116_read_snr(struct dvb_frontend* fe, u16* snr) { - //struct cx24116_state *state = fe->demodulator_priv; + 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 = 0; + + snr_reading = cx24116_readreg(state, CX24116_REG_QUALITY); + + 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; } -/* TODO: Not clear how we do this */ static int cx24116_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) { - //struct cx24116_state *state = fe->demodulator_priv; + struct cx24116_state *state = fe->demodulator_priv; + dprintk("%s()\n", __func__); - *ucblocks = 0; + + *ucblocks = ( cx24116_readreg(state, CX24116_REG_UCB8) << 8 ) | + cx24116_readreg(state, CX24116_REG_UCB0); return 0; } @@ -583,6 +801,27 @@ static void cx24116_clone_params(struct dvb_frontend* fe) memcpy(&state->dcur, &state->dnxt, sizeof(state->dcur)); } +/* 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_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) { struct cx24116_cmd cmd; @@ -594,6 +833,14 @@ static int cx24116_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t 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 */ + /* This is always done before the tone is set */ cmd.args[0x00] = CMD_SET_TONEPRE; cmd.args[0x01] = 0x00; @@ -619,6 +866,9 @@ static int cx24116_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) } 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); } @@ -626,9 +876,39 @@ static int cx24116_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) 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; + state->dsec_cmd.args[CX24116_DISEQC_ARG4_0] = 0x00; /* Continuation flag? */ - /* Default DiSEqC burst state */ - state->burst = CX24116_DISEQC_MINI_A; + /* DiSEqC message length */ + state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] = 0x00; + + /* Command length */ + state->dsec_cmd.len= CX24116_DISEQC_MSGOFS; return 0; } @@ -637,7 +917,6 @@ static int cx24116_diseqc_init(struct dvb_frontend* fe) static int cx24116_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *d) { struct cx24116_state *state = fe->demodulator_priv; - struct cx24116_cmd cmd; int i, ret; /* Dump DiSEqC message */ @@ -647,82 +926,134 @@ static int cx24116_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_ma printk("0x%02x", d->msg[i]); if(++i < d->msg_len) printk(", "); - } - printk(")\n"); + } + printk(") toneburst=%d\n", toneburst); } + /* Validate length */ if(d->msg_len > (CX24116_ARGLEN - CX24116_DISEQC_MSGOFS)) return -EINVAL; - cmd.args[0x00] = CMD_SEND_DISEQC; - cmd.args[CX24116_DISEQC_ARG2_2] = 0x02; - cmd.args[CX24116_DISEQC_ARG3_0] = 0x00; - cmd.args[CX24116_DISEQC_ARG4_0] = 0x00; - /* DiSEqC message */ for (i = 0; i < d->msg_len; i++) - cmd.args[CX24116_DISEQC_MSGOFS + i] = d->msg[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 + * + * datebyte[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]); + } - /* Hack: Derive burst from command else use previous burst */ - if(d->msg_len >= 4 && d->msg[2] == 0x38) - cmd.args[CX24116_DISEQC_BURST] = (d->msg[3] >> 2) & 1; - else - cmd.args[CX24116_DISEQC_BURST] = state->burst; + /* Wait for LNB ready */ + ret = cx24116_wait_for_lnb(fe); + if(ret != 0) + return ret; - cmd.args[CX24116_DISEQC_MSGLEN] = d->msg_len; - cmd.len = CX24116_DISEQC_MSGOFS + d->msg_len; + /* Wait for voltage/min repeat delay */ + msleep(100); - ret = cx24116_cmd_execute(fe, &cmd); - - /* Firmware command duration is unknown, so guess... + /* Command */ + ret = cx24116_cmd_execute(fe, &state->dsec_cmd); + if(ret != 0) + return ret; + /* + * Wait for send * * Eutelsat spec: - * >15ms delay + - * 13.5ms per byte + - * >15ms delay + - * 12.5ms burst + - * >15ms delay + * >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) */ - if(ret == 0) - msleep( (cmd.args[CX24116_DISEQC_MSGLEN] << 4) + 60 ); + msleep( (state->dsec_cmd.args[CX24116_DISEQC_MSGLEN] << 4) + ((toneburst == CX24116_DISEQC_TONEOFF) ? 30 : 60) ); - return ret; + 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; - struct cx24116_cmd cmd; int ret; - dprintk("%s(%d)\n",__func__,(int)burst); - - cmd.args[0x00] = CMD_SEND_DISEQC; - cmd.args[CX24116_DISEQC_ARG2_2] = 0x02; - cmd.args[CX24116_DISEQC_ARG3_0] = 0x00; - cmd.args[CX24116_DISEQC_ARG4_0] = 0x00; + dprintk("%s(%d) toneburst=%d\n",__func__, burst, toneburst); + /* DiSEqC burst */ if (burst == SEC_MINI_A) - cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_A; + state->dsec_cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_A; else if(burst == SEC_MINI_B) - cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_B; + state->dsec_cmd.args[CX24116_DISEQC_BURST] = CX24116_DISEQC_MINI_B; else return -EINVAL; - /* Cache as previous burst state */ - state->burst= cmd.args[CX24116_DISEQC_BURST]; + /* DiSEqC toneburst */ + if(toneburst != CX24116_DISEQC_MESGCACHE) + /* Burst is cached */ + return 0; - cmd.args[CX24116_DISEQC_MSGLEN] = 0x00; - cmd.len= CX24116_DISEQC_MSGOFS; + /* Burst is to be sent with cached message */ - ret= cx24116_cmd_execute(fe, &cmd); + /* Wait for LNB ready */ + ret = cx24116_wait_for_lnb(fe); + if(ret != 0) + return ret; - /* Firmware command duration is unknown, so guess... */ - if(ret == 0) - msleep(60); + /* Wait for voltage/min repeat delay */ + msleep(100); - return ret; + /* 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) @@ -730,6 +1061,7 @@ static void cx24116_release(struct dvb_frontend* fe) struct cx24116_state* state = fe->demodulator_priv; dprintk("%s\n",__func__); kfree(state); + unregister_sysctl_table(kernel_table_header); } static struct dvb_frontend_ops cx24116_ops; @@ -742,11 +1074,15 @@ struct dvb_frontend* cx24116_attach(const struct cx24116_config* config, dprintk("%s\n",__func__); + kernel_table_header = register_sysctl_table(kernel_table); + if(!kernel_table_header) + goto error1; + /* allocate memory for the internal state */ state = kmalloc(sizeof(struct cx24116_state), GFP_KERNEL); if (state == NULL) { printk("Unable to kmalloc\n"); - goto error; + goto error2; } /* setup the state */ @@ -759,7 +1095,7 @@ struct dvb_frontend* cx24116_attach(const struct cx24116_config* config, ret = (cx24116_readreg(state, 0xFF) << 8) | cx24116_readreg(state, 0xFE); if (ret != 0x0501) { printk("Invalid probe, probably not a CX24116 device\n"); - goto error; + goto error3; } /* create dvb_frontend */ @@ -767,33 +1103,64 @@ struct dvb_frontend* cx24116_attach(const struct cx24116_config* config, state->frontend.demodulator_priv = state; return &state->frontend; -error: - kfree(state); - - return NULL; +error3: kfree(state); +error2: unregister_sysctl_table(kernel_table_header); +error1: return NULL; } - -static int cx24116_get_params(struct dvb_frontend* fe) +/* + * 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 dtv_frontend_properties *cache = &fe->dtv_property_cache; + struct cx24116_state* state = fe->demodulator_priv; + struct cx24116_cmd cmd; + int ret; dprintk("%s()\n",__func__); - cache->frequency = state->dcur.frequency; - cache->inversion = state->dcur.inversion; - cache->modulation = state->dcur.modulation; - cache->fec_inner = state->dcur.fec; - cache->symbol_rate = state->dcur.symbol_rate; + /* Power on */ + cx24116_writereg(state, 0xe0, 0); + cx24116_writereg(state, 0xe1, 0); + cx24116_writereg(state, 0xea, 0); - return 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; + + return cx24116_diseqc_init(fe); } -static int cx24116_initfe(struct dvb_frontend* fe) +/* + * 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__); - return cx24116_diseqc_init(fe); + /* 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; } static int cx24116_set_property(struct dvb_frontend *fe, struct dtv_property* tvp) @@ -817,14 +1184,45 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct cx24116_cmd cmd; fe_status_t tunerstat; - int ret, above30msps; - u8 retune=4; + int i, status, ret, retune = 1; dprintk("%s()\n",__func__); state->dnxt.modulation = c->modulation; state->dnxt.frequency = c->frequency; + switch(c->delivery_system) { + case SYS_DVBS: + dprintk("%s: DVB-S delivery system selected\n",__func__); + state->dnxt.pilot = PILOT_OFF; + state->dnxt.rolloff = CX24116_ROLLOFF_035; + break; + case SYS_DVBS2: + dprintk("%s: DVB-S2 delivery system selected\n",__func__); + if(c->pilot == PILOT_AUTO) + retune++; + state->dnxt.pilot = c->pilot; + 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: + return -EOPNOTSUPP; + } + state->dnxt.rolloff = c->rolloff; + break; + default: + dprintk("%s: unsupported delivery system selected (%d)\n", + __func__, c->delivery_system); + return -EOPNOTSUPP; + } + if ((ret = cx24116_set_inversion(state, c->inversion)) != 0) return ret; @@ -837,6 +1235,9 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par /* discard the 'current' tuning parameters and prepare to tune */ cx24116_clone_params(fe); + dprintk("%s: retune = %d\n", __func__, retune); + dprintk("%s: rolloff = %d\n", __func__, state->dcur.rolloff); + dprintk("%s: pilot = %d\n", __func__, state->dcur.pilot); dprintk("%s: frequency = %d\n", __func__, state->dcur.frequency); dprintk("%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate); dprintk("%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__, @@ -844,18 +1245,17 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par 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); - above30msps = (state->dcur.symbol_rate > 30000000); - - if (above30msps){ - cx24116_writereg(state, 0xF9, 0x01); - cx24116_writereg(state, 0xF3, 0x44); - } else { - cx24116_writereg(state, 0xF9, 0x00); - cx24116_writereg(state, 0xF3, 0x46); - } + /* 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; @@ -875,28 +1275,32 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par /* Modulation / FEC & Pilot Off */ cmd.args[0x07] = state->dcur.fec_val; - if (c->pilot == PILOT_ON) - cmd.args[0x07] |= 0x40; + if (state->dcur.pilot == PILOT_ON) + cmd.args[0x07] |= CX24116_PILOT; 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] = 0x02; + cmd.args[0x0c] = state->dcur.rolloff_val; cmd.args[0x0d] = state->dcur.fec_mask; - if (above30msps){ + 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; @@ -906,29 +1310,47 @@ static int cx24116_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par * the demod does not support autodetect. */ do { - /* Reset status register? */ - cx24116_writereg(state, 0x9d, 0xc1); + /* 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; - /* The hardware can take time to lock, wait a while */ - msleep(500); - - cx24116_read_status(fe, &tunerstat); - if(tunerstat & FE_HAS_SIGNAL) { - if(tunerstat & FE_HAS_SYNC) - /* Tuned */ - break; - else if(c->pilot == PILOT_AUTO) - /* Toggle pilot bit */ - cmd.args[0x07] ^= 0x40; + /* + * 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; } while(--retune); +tuned: /* Set/Reset B/W */ + cmd.args[0x00] = CMD_BANDWIDTH; + cmd.args[0x01] = 0x00; + cmd.len= 0x02; + ret = cx24116_cmd_execute(fe, &cmd); + if (ret != 0) + return ret; + return ret; } @@ -953,6 +1375,7 @@ static struct dvb_frontend_ops cx24116_ops = { .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, @@ -971,6 +1394,9 @@ static struct dvb_frontend_ops cx24116_ops = { module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)"); +module_param(toneburst, int, 0644); +MODULE_PARM_DESC(toneburst, "DiSEqC toneburst 0=OFF, 1=TONE CACHE, 2=MESSAGE CACHE (default:1)"); + MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24116/cx24118 hardware"); MODULE_AUTHOR("Steven Toth"); MODULE_LICENSE("GPL"); |