/* * programming the msp34* sound processor family * * (c) 1997-2001 Gerd Knorr * * what works and what doesn't: * * AM-Mono * Support for Hauppauge cards added (decoding handled by tuner) added by * Frederic Crozat * * FM-Mono * should work. The stereo modes are backward compatible to FM-mono, * therefore FM-Mono should be allways available. * * FM-Stereo (B/G, used in germany) * should work, with autodetect * * FM-Stereo (satellite) * should work, no autodetect (i.e. default is mono, but you can * switch to stereo -- untested) * * NICAM (B/G, L , used in UK, Scandinavia, Spain and France) * should work, with autodetect. Support for NICAM was added by * Pekka Pietikainen * * * TODO: * - better SAT support * * * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch) * using soundcore instead of OSS * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "msp3400.h" /* ---------------------------------------------------------------------- */ MODULE_DESCRIPTION("device driver for msp34xx TV sound processor"); MODULE_AUTHOR("Gerd Knorr"); MODULE_LICENSE("GPL"); #define OPMODE_AUTO -1 #define OPMODE_MANUAL 0 #define OPMODE_AUTODETECT 1 /* use autodetect (>= msp3410 only) */ #define OPMODE_AUTOSELECT 2 /* use autodetect & autoselect (>= msp34xxG) */ /* module parameters */ static int opmode = OPMODE_AUTO; static int debug = 0; /* debug output */ static int once = 0; /* no continous stereo monitoring */ static int amsound = 0; /* hard-wire AM sound at 6.5 Hz (france), the autoscan seems work well only with FM... */ static int standard = 1; /* Override auto detect of audio standard, if needed. */ static int dolby = 0; static int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual (msp34xxg only) 0x00a0-0x03c0 */ /* read-only */ module_param(opmode, int, 0444); /* read-write */ module_param(once, int, 0644); module_param(debug, int, 0644); module_param(stereo_threshold, int, 0644); module_param(standard, int, 0644); module_param(amsound, int, 0644); module_param(dolby, int, 0644); MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect"); MODULE_PARM_DESC(once, "No continuous stereo monitoring"); MODULE_PARM_DESC(debug, "Enable debug messages"); MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo"); MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect"); MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan"); MODULE_PARM_DESC(dolby, "Activates Dolby processsing"); /* ---------------------------------------------------------------------- */ #define msp3400_err(fmt, arg...) do { \ printk(KERN_ERR "%s %d-%04x: " fmt, client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); } while (0) #define msp3400_warn(fmt, arg...) do { \ printk(KERN_WARNING "%s %d-%04x: " fmt, client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); } while (0) #define msp3400_info(fmt, arg...) do { \ printk(KERN_INFO "%s %d-%04x: " fmt, client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); } while (0) /* level 1 debug. */ #define msp_dbg1(fmt, arg...) \ do { \ if (debug) \ printk(KERN_INFO "%s debug %d-%04x: " fmt, \ client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); \ } while (0) /* level 2 debug. */ #define msp_dbg2(fmt, arg...) \ do { \ if (debug >= 2) \ printk(KERN_INFO "%s debug %d-%04x: " fmt, \ client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); \ } while (0) /* level 3 debug. Use with care. */ #define msp_dbg3(fmt, arg...) \ do { \ if (debug >= 16) \ printk(KERN_INFO "%s debug %d-%04x: " fmt, \ client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); \ } while (0) /* control subaddress */ #define I2C_MSP_CONTROL 0x00 /* demodulator unit subaddress */ #define I2C_MSP_DEM 0x10 /* DSP unit subaddress */ #define I2C_MSP_DSP 0x12 /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END }; >>>>>>> remote I2C_CLIENT_INSMOD; #define DFP_COUNT 0x41 static const int bl_dfp[] = { 0x00, 0x01, 0x02, 0x03, 0x06, 0x08, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x10 }; #define HAVE_NICAM(state) (((state->rev2>>8) & 0xff) != 00) #define HAVE_RADIO(state) ((state->rev1 & 0x0f) >= 'G'-'@') struct msp_state { int rev1, rev2; int opmode; int mode; int norm; int stereo; int nicam_on; int acb; int in_scart; int i2s_mode; int main, second; /* sound carrier */ int input; int source; /* see msp34xxg_set_source */ /* v4l2 */ int audmode; int rxsubchans; int muted; int left, right; /* volume */ int bass, treble; /* shadow register set */ int dfp_regs[DFP_COUNT]; /* thread */ struct task_struct *kthread; wait_queue_head_t wq; int restart:1; int watch_stereo:1; }; #define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */ /* ----------------------------------------------------------------------- */ /* functions for talking to the MSP3400C Sound processor */ static int msp_reset(struct i2c_client *client) { /* reset and read revision code */ static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 }; static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 }; static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e }; u8 read[2]; struct i2c_msg reset[2] = { { client->addr, I2C_M_IGNORE_NAK, 3, reset_off }, { client->addr, I2C_M_IGNORE_NAK, 3, reset_on }, }; struct i2c_msg test[2] = { { client->addr, 0, 3, write }, { client->addr, I2C_M_RD, 2, read }, }; msp_dbg3("msp_reset\n"); if (1 != i2c_transfer(client->adapter, &reset[0], 1) || 1 != i2c_transfer(client->adapter, &reset[1], 1) || 2 != i2c_transfer(client->adapter, test, 2)) { msp_err("chip reset failed\n"); return -1; } return 0; } static int msp_read(struct i2c_client *client, int dev, int addr) { int err, retval; u8 write[3]; u8 read[2]; struct i2c_msg msgs[2] = { { client->addr, 0, 3, write }, { client->addr, I2C_M_RD, 2, read } }; write[0] = dev + 1; write[1] = addr >> 8; write[2] = addr & 0xff; for (err = 0; err < 3; err++) { if (2 == i2c_transfer(client->adapter, msgs, 2)) break; msp_warn("I/O error #%d (read 0x%02x/0x%02x)\n", err, dev, addr); current->state = TASK_INTERRUPTIBLE; schedule_timeout(msecs_to_jiffies(10)); } if (3 == err) { msp_warn("giving up, resetting chip. Sound will go off, sorry folks :-|\n"); msp_reset(client); return -1; } retval = read[0] << 8 | read[1]; msp_dbg3("msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval); return retval; } static inline int msp_read_dem(struct i2c_client *client, int addr) { return msp_read(client, I2C_MSP_DEM, addr); } static inline int msp_read_dsp(struct i2c_client *client, int addr) { return msp_read(client, I2C_MSP_DSP, addr); } static int msp_write(struct i2c_client *client, int dev, int addr, int val) { int err; u8 buffer[5]; buffer[0] = dev; buffer[1] = addr >> 8; buffer[2] = addr & 0xff; buffer[3] = val >> 8; buffer[4] = val & 0xff; msp_dbg3("msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val); for (err = 0; err < 3; err++) { if (5 == i2c_master_send(client, buffer, 5)) break; msp_warn("I/O error #%d (write 0x%02x/0x%02x)\n", err, dev, addr); current->state = TASK_INTERRUPTIBLE; schedule_timeout(msecs_to_jiffies(10)); } if (3 == err) { msp_warn("giving up, resetting chip. Sound will go off, sorry folks :-|\n"); msp_reset(client); return -1; } return 0; } static inline int msp_write_dem(struct i2c_client *client, int addr, int val) { return msp_write(client, I2C_MSP_DEM, addr, val); } static inline int msp_write_dsp(struct i2c_client *client, int addr, int val) { return msp_write(client, I2C_MSP_DSP, addr, val); } /* ------------------------------------------------------------------------ */ /* This macro is allowed for *constants* only, gcc must calculate it at compile time. Remember -- no floats in kernel mode */ #define MSP_CARRIER(freq) ((int)((float)(freq / 18.432) * (1 << 24))) #define MSP_MODE_AM_DETECT 0 #define MSP_MODE_FM_RADIO 2 #define MSP_MODE_FM_TERRA 3 #define MSP_MODE_FM_SAT 4 #define MSP_MODE_FM_NICAM1 5 #define MSP_MODE_FM_NICAM2 6 #define MSP_MODE_AM_NICAM 7 #define MSP_MODE_BTSC 8 #define MSP_MODE_EXTERN 9 static struct MSP_INIT_DATA_DEM { int fir1[6]; int fir2[6]; int cdo1; int cdo2; int ad_cv; int mode_reg; int dfp_src; int dfp_matrix; } msp_init_data[] = { { /* AM (for carrier detect / msp3400) */ {75, 19, 36, 35, 39, 40}, {75, 19, 36, 35, 39, 40}, MSP_CARRIER(5.5), MSP_CARRIER(5.5), 0x00d0, 0x0500, 0x0020, 0x3000 },{ /* AM (for carrier detect / msp3410) */ {-1, -1, -8, 2, 59, 126}, {-1, -1, -8, 2, 59, 126}, MSP_CARRIER(5.5), MSP_CARRIER(5.5), 0x00d0, 0x0100, 0x0020, 0x3000 },{ /* FM Radio */ {-8, -8, 4, 6, 78, 107}, {-8, -8, 4, 6, 78, 107}, MSP_CARRIER(10.7), MSP_CARRIER(10.7), 0x00d0, 0x0480, 0x0020, 0x3000 },{ /* Terrestial FM-mono + FM-stereo */ {3, 18, 27, 48, 66, 72}, {3, 18, 27, 48, 66, 72}, MSP_CARRIER(5.5), MSP_CARRIER(5.5), 0x00d0, 0x0480, 0x0030, 0x3000 },{ /* Sat FM-mono */ { 1, 9, 14, 24, 33, 37}, { 3, 18, 27, 48, 66, 72}, MSP_CARRIER(6.5), MSP_CARRIER(6.5), 0x00c6, 0x0480, 0x0000, 0x3000 },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */ {-2, -8, -10, 10, 50, 86}, {3, 18, 27, 48, 66, 72}, MSP_CARRIER(5.5), MSP_CARRIER(5.5), 0x00d0, 0x0040, 0x0120, 0x3000 },{ /* NICAM/FM -- I (6.0/6.552) */ {2, 4, -6, -4, 40, 94}, {3, 18, 27, 48, 66, 72}, MSP_CARRIER(6.0), MSP_CARRIER(6.0), 0x00d0, 0x0040, 0x0120, 0x3000 },{ /* NICAM/AM -- L (6.5/5.85) */ {-2, -8, -10, 10, 50, 86}, {-4, -12, -9, 23, 79, 126}, MSP_CARRIER(6.5), MSP_CARRIER(6.5), 0x00c6, 0x0140, 0x0120, 0x7c03 }, }; struct CARRIER_DETECT { int cdo; char *name; }; static struct CARRIER_DETECT carrier_detect_main[] = { /* main carrier */ { MSP_CARRIER(4.5), "4.5 NTSC" }, { MSP_CARRIER(5.5), "5.5 PAL B/G" }, { MSP_CARRIER(6.0), "6.0 PAL I" }, { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" } }; static struct CARRIER_DETECT carrier_detect_55[] = { /* PAL B/G */ { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" }, { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" } }; static struct CARRIER_DETECT carrier_detect_65[] = { /* PAL SAT / SECAM */ { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" }, { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" }, { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" }, { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" }, { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" }, { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" }, }; #define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT)) /* ----------------------------------------------------------------------- * * bits 9 8 5 - SCART DSP input Select: * 0 0 0 - SCART 1 to DSP input (reset position) * 0 1 0 - MONO to DSP input * 1 0 0 - SCART 2 to DSP input * 1 1 1 - Mute DSP input * * bits 11 10 6 - SCART 1 Output Select: * 0 0 0 - undefined (reset position) * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS) * 1 0 0 - MONO input to SCART 1 Output * 1 1 0 - SCART 1 DA to SCART 1 Output * 0 0 1 - SCART 2 DA to SCART 1 Output * 0 1 1 - SCART 1 Input to SCART 1 Output * 1 1 1 - Mute SCART 1 Output * * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART): * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position) * 0 1 0 - SCART 1 Input to SCART 2 Output * 1 0 0 - MONO input to SCART 2 Output * 0 0 1 - SCART 2 DA to SCART 2 Output * 0 1 1 - SCART 2 Input to SCART 2 Output * 1 1 0 - Mute SCART 2 Output * * Bits 4 to 0 should be zero. * ----------------------------------------------------------------------- */ static int scarts[3][9] = { /* MASK IN1 IN2 IN1_DA IN2_DA IN3 IN4 MONO MUTE */ /* SCART DSP Input select */ { 0x0320, 0x0000, 0x0200, -1, -1, 0x0300, 0x0020, 0x0100, 0x0320 }, /* SCART1 Output select */ { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 }, /* SCART2 Output select */ { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 }, }; static char *scart_names[] = { "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute" }; static void msp_set_scart(struct i2c_client *client, int in, int out) { struct msp_state *state = i2c_get_clientdata(client); state->in_scart=in; if (in >= 1 && in <= 8 && out >= 0 && out <= 2) { if (-1 == scarts[out][in]) return; state->acb &= ~scarts[out][SCART_MASK]; state->acb |= scarts[out][in]; } else state->acb = 0xf60; /* Mute Input and SCART 1 Output */ msp_dbg1("scart switch: %s => %d (ACB=0x%04x)\n", scart_names[in], out, state->acb); msp_write_dsp(client, 0x13, state->acb); /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */ msp_write_dem(client, 0x40, state->i2s_mode); } /* ------------------------------------------------------------------------ */ static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2) { msp_write_dem(client, 0x0093, cdo1 & 0xfff); msp_write_dem(client, 0x009b, cdo1 >> 12); msp_write_dem(client, 0x00a3, cdo2 & 0xfff); msp_write_dem(client, 0x00ab, cdo2 >> 12); msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/ } static void msp_set_volume(struct i2c_client *client, int muted, int left, int right) { int vol = 0, val = 0, balance = 0; if (!muted) { vol = (left > right) ? left : right; val = (vol * 0x7f / 65535) << 8; } if (vol > 0) { balance = ((right - left) * 127) / vol; } msp_dbg1("setvolume: mute=%s %d:%d v=0x%02x b=0x%02x\n", muted ? "on" : "off", left, right, val >> 8, balance); msp_write_dsp(client, 0x0000, val); /* loudspeaker */ msp_write_dsp(client, 0x0006, val); /* headphones */ msp_write_dsp(client, 0x0007, muted ? 0x1 : (val | 0x1)); msp_write_dsp(client, 0x0001, balance << 8); } static void msp_set_bass(struct i2c_client *client, int bass) { int val = ((bass-32768) * 0x60 / 65535) << 8; msp_dbg1("setbass: %d 0x%02x\n", bass, val >> 8); msp_write_dsp(client, 0x0002, val); /* loudspeaker */ } static void msp_set_treble(struct i2c_client *client, int treble) { int val = ((treble-32768) * 0x60 / 65535) << 8; msp_dbg1("settreble: %d 0x%02x\n",treble, val>>8); msp_write_dsp(client, 0x0003, val); /* loudspeaker */ } static void msp3400c_setmode(struct i2c_client *client, int type) { struct msp_state *state = i2c_get_clientdata(client); int i; msp_dbg1("setmode: %d\n",type); state->mode = type; state->audmode = V4L2_TUNER_MODE_MONO; state->rxsubchans = V4L2_TUNER_SUB_MONO; msp_write_dem(client, 0x00bb, /* ad_cv */ msp_init_data[type].ad_cv); for (i = 5; i >= 0; i--) /* fir 1 */ msp_write_dem(client, 0x0001, msp_init_data[type].fir1[i]); msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */ msp_write_dem(client, 0x0005, 0x0040); msp_write_dem(client, 0x0005, 0x0000); for (i = 5; i >= 0; i--) msp_write_dem(client, 0x0005, msp_init_data[type].fir2[i]); msp_write_dem(client, 0x0083, /* MODE_REG */ msp_init_data[type].mode_reg); msp3400c_setcarrier(client, msp_init_data[type].cdo1, msp_init_data[type].cdo2); msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/ if (dolby) { msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */ msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */ msp_write_dsp(client, 0x000b, msp_init_data[type].dfp_src); } else { msp_write_dsp(client, 0x0008, msp_init_data[type].dfp_src); msp_write_dsp(client, 0x0009, msp_init_data[type].dfp_src); msp_write_dsp(client, 0x000b, msp_init_data[type].dfp_src); } msp_write_dsp(client, 0x000a, msp_init_data[type].dfp_src); msp_write_dsp(client, 0x000e, msp_init_data[type].dfp_matrix); if (HAVE_NICAM(state)) { /* nicam prescale */ msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */ } } /* given a bitmask of VIDEO_SOUND_XXX returns the "best" in the bitmask */ static int msp3400c_best_video_sound(int rxsubchans) { if (rxsubchans & V4L2_TUNER_SUB_STEREO) return V4L2_TUNER_MODE_STEREO; if (rxsubchans & V4L2_TUNER_SUB_LANG1) return V4L2_TUNER_MODE_LANG1; if (rxsubchans & V4L2_TUNER_SUB_LANG2) return V4L2_TUNER_MODE_LANG2; return V4L2_TUNER_MODE_MONO; } /* turn on/off nicam + stereo */ static void msp3400c_setstereo(struct i2c_client *client, int mode) { static char *strmode[] = { "0", "mono", "stereo", "3", "lang1", "5", "6", "7", "lang2" }; struct msp_state *state = i2c_get_clientdata(client); int nicam = 0; /* channel source: FM/AM or nicam */ int src = 0; if (state->opmode == OPMODE_AUTOSELECT) { /* this method would break everything, let's make sure * it's never called */ msp_dbg1("setstereo called with mode=%d instead of set_source (ignored)\n", mode); return; } /* switch demodulator */ switch (state->mode) { case MSP_MODE_FM_TERRA: msp_dbg1("FM setstereo: %s\n", strmode[mode]); msp3400c_setcarrier(client,state->second,state->main); switch (mode) { case V4L2_TUNER_MODE_STEREO: msp_write_dsp(client, 0x000e, 0x3001); break; case V4L2_TUNER_MODE_MONO: case V4L2_TUNER_MODE_LANG1: case V4L2_TUNER_MODE_LANG2: msp_write_dsp(client, 0x000e, 0x3000); break; } break; case MSP_MODE_FM_SAT: msp_dbg1("SAT setstereo: %s\n", strmode[mode]); switch (mode) { case V4L2_TUNER_MODE_MONO: msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); break; case V4L2_TUNER_MODE_STEREO: msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); break; case V4L2_TUNER_MODE_LANG1: msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); break; case V4L2_TUNER_MODE_LANG2: msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); break; } break; case MSP_MODE_FM_NICAM1: case MSP_MODE_FM_NICAM2: case MSP_MODE_AM_NICAM: msp_dbg1("NICAM setstereo: %s\n",strmode[mode]); msp3400c_setcarrier(client,state->second,state->main); if (state->nicam_on) nicam=0x0100; break; case MSP_MODE_BTSC: msp_dbg1("BTSC setstereo: %s\n",strmode[mode]); nicam=0x0300; break; case MSP_MODE_EXTERN: msp_dbg1("extern setstereo: %s\n",strmode[mode]); nicam = 0x0200; break; case MSP_MODE_FM_RADIO: msp_dbg1("FM-Radio setstereo: %s\n",strmode[mode]); break; default: msp_dbg1("mono setstereo\n"); return; } /* switch audio */ switch (msp3400c_best_video_sound(mode)) { case V4L2_TUNER_MODE_STEREO: src = 0x0020 | nicam; break; case V4L2_TUNER_MODE_MONO: if (state->mode == MSP_MODE_AM_NICAM) { msp_dbg1("switching to AM mono\n"); /* AM mono decoding is handled by tuner, not MSP chip */ /* SCART switching control register */ msp_set_scart(client,SCART_MONO,0); src = 0x0200; break; } case V4L2_TUNER_MODE_LANG1: src = 0x0000 | nicam; break; case V4L2_TUNER_MODE_LANG2: src = 0x0010 | nicam; break; } msp_dbg1("setstereo final source/matrix = 0x%x\n", src); if (dolby) { msp_write_dsp(client, 0x0008,0x0520); msp_write_dsp(client, 0x0009,0x0620); msp_write_dsp(client, 0x000a,src); msp_write_dsp(client, 0x000b,src); } else { msp_write_dsp(client, 0x0008,src); msp_write_dsp(client, 0x0009,src); msp_write_dsp(client, 0x000a,src); msp_write_dsp(client, 0x000b,src); } } static void msp3400c_print_mode(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); if (state->main == state->second) { msp_dbg1("mono sound carrier: %d.%03d MHz\n", state->main/910000,(state->main/910)%1000); } else { msp_dbg1("main sound carrier: %d.%03d MHz\n", state->main/910000,(state->main/910)%1000); } if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) msp_dbg1("NICAM/FM carrier : %d.%03d MHz\n", state->second/910000,(state->second/910)%1000); if (state->mode == MSP_MODE_AM_NICAM) msp_dbg1("NICAM/AM carrier : %d.%03d MHz\n", state->second/910000,(state->second/910)%1000); if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { msp_dbg1("FM-stereo carrier : %d.%03d MHz\n", state->second/910000,(state->second/910)%1000); } } static void msp3400c_restore_dfp(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); int i; for (i = 0; i < DFP_COUNT; i++) { if (-1 == state->dfp_regs[i]) continue; msp_write_dsp(client, i, state->dfp_regs[i]); } } /* if the dfp_regs is set, set what's in there. Otherwise, set the default value */ static int msp_write_dfp_with_default(struct i2c_client *client, int addr, int default_value) { struct msp_state *state = i2c_get_clientdata(client); int value = default_value; if (addr < DFP_COUNT && -1 != state->dfp_regs[addr]) value = state->dfp_regs[addr]; return msp_write_dsp(client, addr, value); } /* ----------------------------------------------------------------------- */ struct REGISTER_DUMP { int addr; char *name; }; struct REGISTER_DUMP d1[] = { {0x007e, "autodetect"}, {0x0023, "C_AD_BITS "}, {0x0038, "ADD_BITS "}, {0x003e, "CIB_BITS "}, {0x0057, "ERROR_RATE"}, }; static int autodetect_stereo(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); int val; int rxsubchans = state->rxsubchans; int newnicam = state->nicam_on; int update = 0; switch (state->mode) { case MSP_MODE_FM_TERRA: val = msp_read_dsp(client, 0x18); if (val > 32767) val -= 65536; msp_dbg2("stereo detect register: %d\n",val); if (val > 4096) { rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO; } else if (val < -4096) { rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; } else { rxsubchans = V4L2_TUNER_SUB_MONO; } newnicam = 0; break; case MSP_MODE_FM_NICAM1: case MSP_MODE_FM_NICAM2: case MSP_MODE_AM_NICAM: val = msp_read_dem(client, 0x23); msp_dbg2("nicam sync=%d, mode=%d\n", val & 1, (val & 0x1e) >> 1); if (val & 1) { /* nicam synced */ switch ((val & 0x1e) >> 1) { case 0: case 8: rxsubchans = V4L2_TUNER_SUB_STEREO; break; case 1: case 9: rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_LANG1; break; case 2: case 10: rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; break; default: rxsubchans = V4L2_TUNER_SUB_MONO; break; } newnicam=1; } else { newnicam = 0; rxsubchans = V4L2_TUNER_SUB_MONO; } break; case MSP_MODE_BTSC: val = msp_read_dem(client, 0x200); msp_dbg2("status=0x%x (pri=%s, sec=%s, %s%s%s)\n", val, (val & 0x0002) ? "no" : "yes", (val & 0x0004) ? "no" : "yes", (val & 0x0040) ? "stereo" : "mono", (val & 0x0080) ? ", nicam 2nd mono" : "", (val & 0x0100) ? ", bilingual/SAP" : ""); rxsubchans = V4L2_TUNER_SUB_MONO; if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO; if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1; break; } if (rxsubchans != state->rxsubchans) { update = 1; msp_dbg1("watch: rxsubchans %d => %d\n", state->rxsubchans,rxsubchans); state->rxsubchans = rxsubchans; } if (newnicam != state->nicam_on) { update = 1; msp_dbg1("watch: nicam %d => %d\n", state->nicam_on,newnicam); state->nicam_on = newnicam; } return update; } /* * A kernel thread for msp3400 control -- we don't want to block the * in the ioctl while doing the sound carrier & stereo detect */ static int msp_sleep(struct msp_state *state, int timeout) { DECLARE_WAITQUEUE(wait, current); add_wait_queue(&state->wq, &wait); if (!kthread_should_stop()) { if (timeout < 0) { set_current_state(TASK_INTERRUPTIBLE); schedule(); } else { schedule_timeout_interruptible (msecs_to_jiffies(timeout)); } } remove_wait_queue(&state->wq, &wait); try_to_freeze(); return state->restart; } /* stereo/multilang monitoring */ static void watch_stereo(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); if (autodetect_stereo(client)) { if (state->stereo & V4L2_TUNER_MODE_STEREO) msp3400c_setstereo(client, V4L2_TUNER_MODE_STEREO); else if (state->stereo & VIDEO_SOUND_LANG1) msp3400c_setstereo(client, V4L2_TUNER_MODE_LANG1); else msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); } if (once) state->watch_stereo = 0; } static int msp3400c_thread(void *data) { struct i2c_client *client = data; struct msp_state *state = i2c_get_clientdata(client); struct CARRIER_DETECT *cd; int count, max1,max2,val1,val2, val,this; msp_info("msp3400 daemon started\n"); for (;;) { msp_dbg2("msp3400 thread: sleep\n"); msp_sleep(state, -1); msp_dbg2("msp3400 thread: wakeup\n"); restart: msp_dbg1("thread: restart scan\n"); state->restart = 0; if (kthread_should_stop()) break; if (VIDEO_MODE_RADIO == state->norm || MSP_MODE_EXTERN == state->mode) { /* no carrier scan, just unmute */ msp_info("thread: no carrier scan\n"); msp_set_volume(client, state->muted, state->left, state->right); continue; } /* mute */ msp_set_volume(client, state->muted, 0, 0); msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ ); val1 = val2 = 0; max1 = max2 = -1; state->watch_stereo = 0; /* some time for the tuner to sync */ if (msp_sleep(state,200)) goto restart; /* carrier detect pass #1 -- main carrier */ cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main); if (amsound && (state->norm == VIDEO_MODE_SECAM)) { /* autodetect doesn't work well with AM ... */ max1 = 3; count = 0; msp_dbg1("AM sound override\n"); } for (this = 0; this < count; this++) { msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); if (msp_sleep(state,100)) goto restart; val = msp_read_dsp(client, 0x1b); if (val > 32767) val -= 65536; if (val1 < val) val1 = val, max1 = this; msp_dbg1("carrier1 val: %5d / %s\n", val,cd[this].name); } /* carrier detect pass #2 -- second (stereo) carrier */ switch (max1) { case 1: /* 5.5 */ cd = carrier_detect_55; count = CARRIER_COUNT(carrier_detect_55); break; case 3: /* 6.5 */ cd = carrier_detect_65; count = CARRIER_COUNT(carrier_detect_65); break; case 0: /* 4.5 */ case 2: /* 6.0 */ default: cd = NULL; count = 0; break; } if (amsound && (state->norm == VIDEO_MODE_SECAM)) { /* autodetect doesn't work well with AM ... */ cd = NULL; count = 0; max2 = 0; } for (this = 0; this < count; this++) { msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); if (msp_sleep(state,100)) goto restart; val = msp_read_dsp(client, 0x1b); if (val > 32767) val -= 65536; if (val2 < val) val2 = val, max2 = this; msp_dbg1("carrier2 val: %5d / %s\n", val,cd[this].name); } /* program the msp3400 according to the results */ state->main = carrier_detect_main[max1].cdo; switch (max1) { case 1: /* 5.5 */ if (max2 == 0) { /* B/G FM-stereo */ state->second = carrier_detect_55[max2].cdo; msp3400c_setmode(client, MSP_MODE_FM_TERRA); state->nicam_on = 0; msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); state->watch_stereo = 1; } else if (max2 == 1 && HAVE_NICAM(state)) { /* B/G NICAM */ state->second = carrier_detect_55[max2].cdo; msp3400c_setmode(client, MSP_MODE_FM_NICAM1); state->nicam_on = 1; msp3400c_setcarrier(client, state->second, state->main); state->watch_stereo = 1; } else { goto no_second; } break; case 2: /* 6.0 */ /* PAL I NICAM */ state->second = MSP_CARRIER(6.552); msp3400c_setmode(client, MSP_MODE_FM_NICAM2); state->nicam_on = 1; msp3400c_setcarrier(client, state->second, state->main); state->watch_stereo = 1; break; case 3: /* 6.5 */ if (max2 == 1 || max2 == 2) { /* D/K FM-stereo */ state->second = carrier_detect_65[max2].cdo; msp3400c_setmode(client, MSP_MODE_FM_TERRA); state->nicam_on = 0; msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); state->watch_stereo = 1; } else if (max2 == 0 && state->norm == VIDEO_MODE_SECAM) { /* L NICAM or AM-mono */ state->second = carrier_detect_65[max2].cdo; msp3400c_setmode(client, MSP_MODE_AM_NICAM); state->nicam_on = 0; msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); msp3400c_setcarrier(client, state->second, state->main); /* volume prescale for SCART (AM mono input) */ msp_write_dsp(client, 0x000d, 0x1900); state->watch_stereo = 1; } else if (max2 == 0 && HAVE_NICAM(state)) { /* D/K NICAM */ state->second = carrier_detect_65[max2].cdo; msp3400c_setmode(client, MSP_MODE_FM_NICAM1); state->nicam_on = 1; msp3400c_setcarrier(client, state->second, state->main); state->watch_stereo = 1; } else { goto no_second; } break; case 0: /* 4.5 */ default: no_second: state->second = carrier_detect_main[max1].cdo; msp3400c_setmode(client, MSP_MODE_FM_TERRA); state->nicam_on = 0; msp3400c_setcarrier(client, state->second, state->main); state->rxsubchans = V4L2_TUNER_SUB_MONO; msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); break; } /* unmute */ msp_set_volume(client, state->muted, state->left, state->right); msp3400c_restore_dfp(client); if (debug) msp3400c_print_mode(client); /* monitor tv audio mode */ while (state->watch_stereo) { if (msp_sleep(state,5000)) goto restart; watch_stereo(client); } } msp_dbg1("thread: exit\n"); return 0; } /* ----------------------------------------------------------------------- */ /* this one uses the automatic sound standard detection of newer */ /* msp34xx chip versions */ static struct MODES { int retval; int main, second; char *name; } modelist[] = { { 0x0000, 0, 0, "could not detect sound standard" }, { 0x0001, 0, 0, "autodetect started" }, { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" }, { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" }, { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" }, { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" }, { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" }, { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" }, { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" }, { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" }, { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" }, { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" }, { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" }, { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" }, { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" }, { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" }, { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" }, { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" }, { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" }, { -1, 0, 0, NULL }, /* EOF */ }; static inline const char *msp_standard_mode_name(int mode) { int i; for (i = 0; modelist[i].name != NULL; i++) if (modelist[i].retval == mode) return modelist[i].name; return "unknown"; } static int msp_modus(struct i2c_client *client, int norm) { switch (norm) { case VIDEO_MODE_PAL: msp_dbg1("video mode selected to PAL\n"); #if 1 /* experimental: not sure this works with all chip versions */ return 0x7003; #else /* previous value, try this if it breaks ... */ return 0x1003; #endif case VIDEO_MODE_NTSC: /* BTSC */ msp_dbg1("video mode selected to NTSC\n"); return 0x2003; case VIDEO_MODE_SECAM: msp_dbg1("video mode selected to SECAM\n"); return 0x0003; case VIDEO_MODE_RADIO: msp_dbg1("video mode selected to Radio\n"); return 0x0003; case VIDEO_MODE_AUTO: msp_dbg1("video mode selected to Auto\n"); return 0x2003; default: return 0x0003; } } static int msp_standard(int norm) { switch (norm) { case VIDEO_MODE_PAL: return 1; case VIDEO_MODE_NTSC: /* BTSC */ return 0x0020; case VIDEO_MODE_SECAM: return 1; case VIDEO_MODE_RADIO: return 0x0040; default: return 1; } } static int msp3410d_thread(void *data) { struct i2c_client *client = data; struct msp_state *state = i2c_get_clientdata(client); int mode,val,i,std; msp_info("msp3410 daemon started\n"); for (;;) { msp_dbg2("msp3410 thread: sleep\n"); msp_sleep(state,-1); msp_dbg2("msp3410 thread: wakeup\n"); restart: msp_dbg1("thread: restart scan\n"); state->restart = 0; if (kthread_should_stop()) break; if (state->mode == MSP_MODE_EXTERN) { /* no carrier scan needed, just unmute */ msp_dbg1("thread: no carrier scan\n"); msp_set_volume(client, state->muted, state->left, state->right); continue; } /* put into sane state (and mute) */ msp_reset(client); /* some time for the tuner to sync */ if (msp_sleep(state,200)) goto restart; /* start autodetect */ mode = msp_modus(client, state->norm); std = msp_standard(state->norm); msp_write_dem(client, 0x30, mode); msp_write_dem(client, 0x20, std); state->watch_stereo = 0; if (debug) msp_dbg1("setting mode: %s (0x%04x)\n", msp_standard_mode_name(std) ,std); if (std != 1) { /* programmed some specific mode */ val = std; } else { /* triggered autodetect */ for (;;) { if (msp_sleep(state,100)) goto restart; /* check results */ val = msp_read_dem(client, 0x7e); if (val < 0x07ff) break; msp_dbg1("detection still in progress\n"); } } for (i = 0; modelist[i].name != NULL; i++) if (modelist[i].retval == val) break; msp_dbg1("current mode: %s (0x%04x)\n", modelist[i].name ? modelist[i].name : "unknown", val); state->main = modelist[i].main; state->second = modelist[i].second; if (amsound && (state->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) { /* autodetection has failed, let backup */ msp_dbg1("autodetection failed," " switching to backup mode: %s (0x%04x)\n", modelist[8].name ? modelist[8].name : "unknown",val); val = 0x0009; msp_write_dem(client, 0x20, val); } /* set various prescales */ msp_write_dsp(client, 0x0d, 0x1900); /* scart */ msp_write_dsp(client, 0x0e, 0x2403); /* FM */ msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ /* set stereo */ switch (val) { case 0x0008: /* B/G NICAM */ case 0x000a: /* I NICAM */ if (val == 0x0008) state->mode = MSP_MODE_FM_NICAM1; else state->mode = MSP_MODE_FM_NICAM2; /* just turn on stereo */ state->rxsubchans = V4L2_TUNER_SUB_STEREO; state->nicam_on = 1; state->watch_stereo = 1; msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO); break; case 0x0009: state->mode = MSP_MODE_AM_NICAM; state->rxsubchans = V4L2_TUNER_SUB_MONO; state->nicam_on = 1; msp3400c_setstereo(client,V4L2_TUNER_MODE_MONO); state->watch_stereo = 1; break; case 0x0020: /* BTSC */ /* just turn on stereo */ state->mode = MSP_MODE_BTSC; state->rxsubchans = V4L2_TUNER_SUB_STEREO; state->nicam_on = 0; state->watch_stereo = 1; msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO); break; case 0x0040: /* FM radio */ state->mode = MSP_MODE_FM_RADIO; state->rxsubchans = V4L2_TUNER_SUB_STEREO; state->audmode = V4L2_TUNER_MODE_STEREO; state->nicam_on = 0; state->watch_stereo = 0; /* not needed in theory if HAVE_RADIO(), but short programming enables carrier mute */ msp3400c_setmode(client,MSP_MODE_FM_RADIO); msp3400c_setcarrier(client, MSP_CARRIER(10.7), MSP_CARRIER(10.7)); /* scart routing */ msp_set_scart(client,SCART_IN2,0); /* msp34xx does radio decoding */ msp_write_dsp(client, 0x08, 0x0020); msp_write_dsp(client, 0x09, 0x0020); msp_write_dsp(client, 0x0b, 0x0020); break; case 0x0003: case 0x0004: case 0x0005: state->mode = MSP_MODE_FM_TERRA; state->rxsubchans = V4L2_TUNER_SUB_MONO; state->audmode = V4L2_TUNER_MODE_MONO; state->nicam_on = 0; state->watch_stereo = 1; break; } /* unmute, restore misc registers */ msp_set_bass(client, state->bass); msp_set_treble(client, state->treble); msp_set_volume(client, state->muted, state->left, state->right); msp_write_dsp(client, 0x13, state->acb); msp_write_dem(client, 0x40, state->i2s_mode); msp3400c_restore_dfp(client); /* monitor tv audio mode */ while (state->watch_stereo) { if (msp_sleep(state,5000)) goto restart; watch_stereo(client); } } msp_dbg1("thread: exit\n"); return 0; } /* ----------------------------------------------------------------------- */ /* msp34xxG + (autoselect no-thread) */ /* this one uses both automatic standard detection and automatic sound */ /* select which are available in the newer G versions */ /* struct msp: only norm, acb and source are really used in this mode */ static void msp34xxg_set_source(struct i2c_client *client, int source); /* (re-)initialize the msp34xxg, according to the current norm in state->norm * return 0 if it worked, -1 if it failed */ static int msp34xxg_reset(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); int modus,std; if (msp_reset(client)) return -1; /* make sure that input/output is muted (paranoid mode) */ if (msp_write_dsp(client, 0x13, /* ACB */ 0x0f20 /* mute DSP input, mute SCART 1 */)) return -1; msp_write_dem(client, 0x40, state->i2s_mode); /* step-by-step initialisation, as described in the manual */ modus = msp_modus(client, state->norm); std = msp_standard(state->norm); modus &= ~0x03; /* STATUS_CHANGE=0 */ modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION=1 */ if (msp_write_dem(client, 0x30/*MODUS*/, modus)) return -1; if (msp_write_dem(client, 0x20/*standard*/, std)) return -1; /* write the dfps that may have an influence on standard/audio autodetection right now */ msp34xxg_set_source(client, state->source); if (msp_write_dfp_with_default(client, 0x0e, /* AM/FM Prescale */ 0x3000 /* default: [15:8] 75khz deviation */ )) return -1; if (msp_write_dfp_with_default(client, 0x10, /* NICAM Prescale */ 0x5a00 /* default: 9db gain (as recommended) */ )) return -1; return 0; } static int msp34xxg_thread(void *data) { struct i2c_client *client = data; struct msp_state *state = i2c_get_clientdata(client); int val, std, i; msp_info("msp34xxg daemon started\n"); state->source = 1; /* default */ for (;;) { msp_dbg2("msp34xxg thread: sleep\n"); msp_sleep(state,-1); msp_dbg2("msp34xxg thread: wakeup\n"); restart: msp_dbg1("thread: restart scan\n"); state->restart = 0; if (kthread_should_stop()) break; /* setup the chip*/ msp34xxg_reset(client); std = standard; if (std != 0x01) goto unmute; /* watch autodetect */ msp_dbg1("triggered autodetect, waiting for result\n"); for (i = 0; i < 10; i++) { if (msp_sleep(state,100)) goto restart; /* check results */ val = msp_read_dem(client, 0x7e); if (val < 0x07ff) { std = val; break; } msp_dbg1("detection still in progress\n"); } if (0x01 == std) { msp_dbg1("detection still in progress after 10 tries. giving up.\n"); continue; } unmute: state->mode = std; msp_dbg1("current mode: %s (0x%04x)\n", msp_standard_mode_name(std), std); /* unmute: dispatch sound to scart output, set scart volume */ msp_dbg1("unmute\n"); msp_set_bass(client, state->bass); msp_set_treble(client, state->treble); msp_set_volume(client, state->muted, state->left, state->right); /* restore ACB */ if (msp_write_dsp(client, 0x13, state->acb)) return -1; msp_write_dem(client, 0x40, state->i2s_mode); } msp_dbg1("thread: exit\n"); return 0; } /* set the same 'source' for the loudspeaker, scart and quasi-peak detector * the value for source is the same as bit 15:8 of DFP registers 0x08, * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B * * this function replaces msp3400c_setstereo */ static void msp34xxg_set_source(struct i2c_client *client, int source) { struct msp_state *state = i2c_get_clientdata(client); /* fix matrix mode to stereo and let the msp choose what * to output according to 'source', as recommended * for MONO (source==0) downmixing set bit[7:0] to 0x30 */ int value = (source&0x07)<<8|(source==0 ? 0x30:0x20); msp_dbg1("set source to %d (0x%x)\n", source, value); msp_write_dsp(client, 0x08, /* Loudspeaker Output */ value); msp_write_dsp(client, 0x0a, /* SCART1 DA Output */ value); msp_write_dsp(client, 0x0c, /* Quasi-peak detector */ value); /* * set identification threshold. Personally, I * I set it to a higher value that the default * of 0x190 to ignore noisy stereo signals. * this needs tuning. (recommended range 0x00a0-0x03c0) * 0x7f0 = forced mono mode */ msp_write_dem(client, 0x22, /* a2 threshold for stereo/bilingual */ stereo_threshold); state->source=source; } static void msp34xxg_detect_stereo(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); int status = msp_read_dem(client, 0x0200 /* STATUS */); int is_bilingual = status&0x100; int is_stereo = status&0x40; state->rxsubchans = 0; if (is_stereo) state->rxsubchans |= V4L2_TUNER_SUB_STEREO; else state->rxsubchans |= V4L2_TUNER_SUB_MONO; if (is_bilingual) { state->rxsubchans |= V4L2_TUNER_SUB_LANG1|V4L2_TUNER_SUB_LANG2; /* I'm supposed to check whether it's SAP or not * and set only LANG2/SAP in this case. Yet, the MSP * does a lot of work to hide this and handle everything * the same way. I don't want to work around it so unless * this is a problem, I'll handle SAP just like lang1/lang2. */ } msp_dbg1("status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", status, is_stereo, is_bilingual, state->rxsubchans); } static void msp34xxg_set_audmode(struct i2c_client *client, int audmode) { struct msp_state *state = i2c_get_clientdata(client); int source; switch (audmode) { case V4L2_TUNER_MODE_MONO: source=0; /* mono only */ break; case V4L2_TUNER_MODE_STEREO: source=1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */ /* problem: that could also mean 2 (scart input) */ break; case V4L2_TUNER_MODE_LANG1: source=3; /* stereo or A */ break; case V4L2_TUNER_MODE_LANG2: source=4; /* stereo or B */ break; default: audmode = 0; source = 1; break; } state->audmode = audmode; msp34xxg_set_source(client, source); } /* ----------------------------------------------------------------------- */ static void msp_wake_thread(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); if (NULL == state->kthread) return; msp_set_volume(client,state->muted,0,0); state->watch_stereo = 0; state->restart = 1; wake_up_interruptible(&state->wq); } /* ----------------------------------------------------------------------- */ static int mode_v4l2_to_v4l1(int rxsubchans) { int mode = 0; if (rxsubchans & V4L2_TUNER_SUB_STEREO) mode |= VIDEO_SOUND_STEREO; if (rxsubchans & V4L2_TUNER_SUB_LANG2) mode |= VIDEO_SOUND_LANG2; if (rxsubchans & V4L2_TUNER_SUB_LANG1) mode |= VIDEO_SOUND_LANG1; if (0 == mode) mode |= VIDEO_SOUND_MONO; return mode; } static int mode_v4l1_to_v4l2(int mode) { if (mode & VIDEO_SOUND_STEREO) return V4L2_TUNER_MODE_STEREO; if (mode & VIDEO_SOUND_LANG2) return V4L2_TUNER_MODE_LANG2; if (mode & VIDEO_SOUND_LANG1) return V4L2_TUNER_MODE_LANG1; return V4L2_TUNER_MODE_MONO; } static void msp_any_detect_stereo(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); switch (state->opmode) { case OPMODE_MANUAL: case OPMODE_AUTODETECT: autodetect_stereo(client); break; case OPMODE_AUTOSELECT: msp34xxg_detect_stereo(client); break; } } static struct v4l2_queryctrl msp_qctrl[] = { { .id = V4L2_CID_AUDIO_VOLUME, .name = "Volume", .minimum = 0, .maximum = 65535, .step = 65535/100, .default_value = 58880, .flags = 0, .type = V4L2_CTRL_TYPE_INTEGER, },{ .id = V4L2_CID_AUDIO_MUTE, .name = "Mute", .minimum = 0, .maximum = 1, .step = 1, .default_value = 1, .flags = 0, .type = V4L2_CTRL_TYPE_BOOLEAN, },{ .id = V4L2_CID_AUDIO_BASS, .name = "Bass", .minimum = 0, .maximum = 65535, .step = 65535/100, .default_value = 32768, .type = V4L2_CTRL_TYPE_INTEGER, },{ .id = V4L2_CID_AUDIO_TREBLE, .name = "Treble", .minimum = 0, .maximum = 65535, .step = 65535/100, .default_value = 32768, .type = V4L2_CTRL_TYPE_INTEGER, }, }; static void msp_any_set_audmode(struct i2c_client *client, int audmode) { struct msp_state *state = i2c_get_clientdata(client); switch (state->opmode) { case OPMODE_MANUAL: case OPMODE_AUTODETECT: state->watch_stereo = 0; msp3400c_setstereo(client, audmode); break; case OPMODE_AUTOSELECT: msp34xxg_set_audmode(client, audmode); break; } } static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl) { struct msp_state *state = i2c_get_clientdata(client); switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: ctrl->value = state->muted; return 0; case V4L2_CID_AUDIO_BALANCE: { int volume = max(state->left, state->right); ctrl->value = (32768 * min(state->left, state->right)) / (volume ? volume : 1); ctrl->value = (state->left < state->right) ? (65535 - ctrl->value) : ctrl->value; if (0 == volume) ctrl->value = 32768; return 0; } case V4L2_CID_AUDIO_BASS: ctrl->value = state->bass; return 0; case V4L2_CID_AUDIO_TREBLE: ctrl->value = state->treble; return 0; case V4L2_CID_AUDIO_VOLUME: ctrl->value = max(state->left, state->right); return 0; default: return -EINVAL; } } static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl) { struct msp_state *state = i2c_get_clientdata(client); int set_volume = 0, balance, volume; switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: if (ctrl->value < 0 || ctrl->value >= 2) return -ERANGE; state->muted = ctrl->value; msp_set_volume(client, state->muted, state->left, state->right); return 0; case V4L2_CID_AUDIO_BALANCE: balance = ctrl->value; volume = max(state->left, state->right); set_volume = 1; break; case V4L2_CID_AUDIO_BASS: state->bass = ctrl->value; msp_set_bass(client, state->bass); return 0; case V4L2_CID_AUDIO_TREBLE: state->treble = ctrl->value; msp_set_treble(client, state->treble); return 0; case V4L2_CID_AUDIO_VOLUME: volume = max(state->left, state->right); balance = (32768 * min(state->left, state->right)) / (volume ? volume : 1); balance = (state->left < state->right) ? (65535 - balance) : balance; if (volume == 0) balance = 32768; volume = ctrl->value; set_volume = 1; break; default: return -EINVAL; } if (set_volume) { state->left = (min(65536 - balance, 32768) * volume) / 32768; state->right = (min(balance, 32768) * volume) / 32768; msp_dbg2("volume=%d, balance=%d, left=%d, right=%d", volume, balance, state->left, state->right); msp_set_volume(client, state->muted, state->left, state->right); } return 0; } static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg) { struct msp_state *state = i2c_get_clientdata(client); u16 *sarg = arg; int scart = 0; switch (cmd) { case AUDC_SET_INPUT: msp_dbg1("AUDC_SET_INPUT(%d)\n",*sarg); if (*sarg == state->input) break; state->input = *sarg; switch (*sarg) { case AUDIO_RADIO: /* Hauppauge uses IN2 for the radio */ state->mode = MSP_MODE_FM_RADIO; scart = SCART_IN2; break; case AUDIO_EXTERN_1: /* IN1 is often used for external input ... */ state->mode = MSP_MODE_EXTERN; scart = SCART_IN1; break; case AUDIO_EXTERN_2: /* ... sometimes it is IN2 through ;) */ state->mode = MSP_MODE_EXTERN; scart = SCART_IN2; break; case AUDIO_TUNER: state->mode = -1; break; default: if (*sarg & AUDIO_MUTE) msp_set_scart(client, SCART_MUTE, 0); break; } if (scart) { state->rxsubchans = V4L2_TUNER_SUB_STEREO; state->audmode = V4L2_TUNER_MODE_STEREO; msp_set_scart(client, scart, 0); msp_write_dsp(client, 0x000d, 0x1900); if (state->opmode != OPMODE_AUTOSELECT) msp3400c_setstereo(client, state->audmode); } msp_wake_thread(client); break; case AUDC_SET_RADIO: msp_dbg1("AUDC_SET_RADIO\n"); state->norm = VIDEO_MODE_RADIO; msp_dbg1("switching to radio mode\n"); state->watch_stereo = 0; switch (state->opmode) { case OPMODE_MANUAL: /* set msp3400 to FM radio mode */ msp3400c_setmode(client, MSP_MODE_FM_RADIO); msp3400c_setcarrier(client, MSP_CARRIER(10.7), MSP_CARRIER(10.7)); msp_set_volume(client, state->muted, state->left, state->right); break; case OPMODE_AUTODETECT: case OPMODE_AUTOSELECT: /* the thread will do for us */ msp_wake_thread(client); break; } break; /* work-in-progress: hook to control the DFP registers */ case MSP_SET_DFPREG: { struct msp_dfpreg *r = arg; int i; if (r->reg < 0 || r->reg >= DFP_COUNT) return -EINVAL; for (i = 0; i < sizeof(bl_dfp) / sizeof(int); i++) if (r->reg == bl_dfp[i]) return -EINVAL; state->dfp_regs[r->reg] = r->value; msp_write_dsp(client, r->reg, r->value); return 0; } case MSP_GET_DFPREG: { struct msp_dfpreg *r = arg; if (r->reg < 0 || r->reg >= DFP_COUNT) return -EINVAL; r->value = msp_read_dsp(client, r->reg); return 0; } /* --- v4l ioctls --- */ /* take care: bttv does userspace copying, we'll get a kernel pointer here... */ case VIDIOCGAUDIO: { struct video_audio *va = arg; msp_dbg1("VIDIOCGAUDIO\n"); va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE | VIDEO_AUDIO_MUTABLE; if (state->muted) va->flags |= VIDEO_AUDIO_MUTE; if (state->muted) va->flags |= VIDEO_AUDIO_MUTE; va->volume = max(state->left, state->right); va->balance = (32768 * min(state->left, state->right)) / (va->volume ? va->volume : 1); va->balance = (state->left < state->right) ? (65535 - va->balance) : va->balance; if (0 == va->volume) va->balance = 32768; va->bass = state->bass; va->treble = state->treble; msp_any_detect_stereo(client); va->mode = mode_v4l2_to_v4l1(state->rxsubchans); break; } case VIDIOCSAUDIO: { struct video_audio *va = arg; msp_dbg1("VIDIOCSAUDIO\n"); state->muted = (va->flags & VIDEO_AUDIO_MUTE); state->left = (min(65536 - va->balance, 32768) * va->volume) / 32768; state->right = (min((int)va->balance, 32768) * va->volume) / 32768; state->bass = va->bass; state->treble = va->treble; msp_dbg1("vol %d, bal %d, flags %x, left %d, right %d, bass %d, treble %d, mode %x\n", va->volume, va->balance, va->flags, state->left, state->right, state->bass, state->treble, state->mode); msp_set_volume(client, state->muted, state->left, state->right); msp_set_bass(client, state->bass); msp_set_treble(client, state->treble); if (va->mode != 0 && state->norm != VIDEO_MODE_RADIO) msp_any_set_audmode(client,mode_v4l1_to_v4l2(va->mode)); break; } case VIDIOCSCHAN: { struct video_channel *vc = arg; msp_dbg1("VIDIOCSCHAN (norm=%d)\n",vc->norm); state->norm = vc->norm; msp_wake_thread(client); break; } case VIDIOCSFREQ: case VIDIOC_S_FREQUENCY: { /* new channel -- kick audio carrier scan */ msp_dbg1("VIDIOCSFREQ\n"); msp_wake_thread(client); break; } /* msp34xx specific */ case MSP_SET_MATRIX: { struct msp_matrix *mspm = arg; msp_dbg1("MSP_SET_MATRIX\n"); msp_set_scart(client, mspm->input, mspm->output); break; } /* --- v4l2 ioctls --- */ case VIDIOC_S_STD: { v4l2_std_id *id = arg; /*FIXME: use V4L2 mode flags on msp3400 instead of V4L1*/ if (*id & V4L2_STD_PAL) { state->norm=VIDEO_MODE_PAL; } else if (*id & V4L2_STD_SECAM) { state->norm=VIDEO_MODE_SECAM; } else { state->norm=VIDEO_MODE_NTSC; } msp_wake_thread(client); return 0; } case VIDIOC_ENUMINPUT: { struct v4l2_input *i = arg; if (i->index != 0) return -EINVAL; i->type = V4L2_INPUT_TYPE_TUNER; switch (i->index) { case AUDIO_RADIO: strcpy(i->name,"Radio"); break; case AUDIO_EXTERN_1: strcpy(i->name,"Extern 1"); break; case AUDIO_EXTERN_2: strcpy(i->name,"Extern 2"); break; case AUDIO_TUNER: strcpy(i->name,"Television"); break; default: return -EINVAL; } return 0; } case VIDIOC_G_AUDIO: { struct v4l2_audio *a = arg; memset(a,0,sizeof(*a)); switch (a->index) { case AUDIO_RADIO: strcpy(a->name,"Radio"); break; case AUDIO_EXTERN_1: strcpy(a->name,"Extern 1"); break; case AUDIO_EXTERN_2: strcpy(a->name,"Extern 2"); break; case AUDIO_TUNER: strcpy(a->name,"Television"); break; default: return -EINVAL; } msp_any_detect_stereo(client); if (state->audmode == V4L2_TUNER_MODE_STEREO) { a->capability=V4L2_AUDCAP_STEREO; } break; } case VIDIOC_S_AUDIO: { struct v4l2_audio *sarg = arg; switch (sarg->index) { case AUDIO_RADIO: /* Hauppauge uses IN2 for the radio */ state->mode = MSP_MODE_FM_RADIO; scart = SCART_IN2; break; case AUDIO_EXTERN_1: /* IN1 is often used for external input ... */ state->mode = MSP_MODE_EXTERN; scart = SCART_IN1; break; case AUDIO_EXTERN_2: /* ... sometimes it is IN2 through ;) */ state->mode = MSP_MODE_EXTERN; scart = SCART_IN2; break; case AUDIO_TUNER: state->mode = -1; break; } if (scart) { state->rxsubchans = V4L2_TUNER_SUB_STEREO; state->audmode = V4L2_TUNER_MODE_STEREO; msp_set_scart(client,scart,0); msp_write_dsp(client,0x000d,0x1900); } if (sarg->capability==V4L2_AUDCAP_STEREO) { state->audmode = V4L2_TUNER_MODE_STEREO; } else { state->audmode &= ~V4L2_TUNER_MODE_STEREO; } msp_any_set_audmode(client, state->audmode); msp_wake_thread(client); break; } case VIDIOC_G_TUNER: { struct v4l2_tuner *vt = arg; msp_any_detect_stereo(client); vt->audmode = state->audmode; vt->rxsubchans = state->rxsubchans; vt->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1| V4L2_TUNER_CAP_LANG2; break; } case VIDIOC_S_TUNER: { struct v4l2_tuner *vt=(struct v4l2_tuner *)arg; /* only set audmode */ if (vt->audmode != -1 && vt->audmode != 0) msp_any_set_audmode(client, vt->audmode); break; } case VIDIOC_G_AUDOUT: { struct v4l2_audioout *a=(struct v4l2_audioout *)arg; int idx=a->index; memset(a,0,sizeof(*a)); switch (idx) { case 0: strcpy(a->name,"Scart1 Out"); break; case 1: strcpy(a->name,"Scart2 Out"); break; case 2: strcpy(a->name,"I2S Out"); break; default: return -EINVAL; } break; } case VIDIOC_S_AUDOUT: { struct v4l2_audioout *a=(struct v4l2_audioout *)arg; if (a->index<0||a->index>2) return -EINVAL; msp_dbg1("Setting audio out on msp34xx to input %i\n",a->index); msp_set_scart(client,state->in_scart,a->index+1); break; } case VIDIOC_INT_I2S_CLOCK_FREQ: { u32 *a=(u32 *)arg; msp_dbg1("Setting I2S speed to %d\n",*a); switch (*a) { case 1024000: state->i2s_mode=0; break; case 2048000: state->i2s_mode=1; break; default: return -EINVAL; } break; } case VIDIOC_QUERYCTRL: { struct v4l2_queryctrl *qc = arg; int i; msp_dbg1("VIDIOC_QUERYCTRL\n"); for (i = 0; i < ARRAY_SIZE(msp_qctrl); i++) if (qc->id && qc->id == msp_qctrl[i].id) { memcpy(qc, &(msp_qctrl[i]), sizeof(*qc)); return 0; } return -EINVAL; } case VIDIOC_G_CTRL: { struct v4l2_control *ctrl = arg; msp_dbg1("VIDIOC_G_CTRL\n"); return msp_get_ctrl(client, ctrl); } case VIDIOC_S_CTRL: { struct v4l2_control *ctrl = arg; msp_dbg1("VIDIOC_S_CTRL\n"); return msp_set_ctrl(client, ctrl); } case VIDIOC_LOG_STATUS: msp_any_detect_stereo(client); msp_info("%s rev1 = 0x%04x rev2 = 0x%04x\n", client->name, state->rev1, state->rev2); msp_info("Volume: left %d right %d bass %d treble %d%s\n", state->left, state->right, state->bass, state->treble, state->muted ? " (muted)" : ""); msp_info("Mode: %s (%s%s)\n", msp_standard_mode_name(state->mode), (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); msp_info("ACB: 0x%04x\n", state->acb); break; default: /* nothing */ break; } return 0; } static int msp_suspend(struct device * dev, pm_message_t state) { struct i2c_client *client = container_of(dev, struct i2c_client, dev); msp_dbg1("suspend\n"); msp_reset(client); return 0; } static int msp_resume(struct device * dev) { struct i2c_client *client = container_of(dev, struct i2c_client, dev); msp_dbg1("resume\n"); msp_wake_thread(client); return 0; } /* ----------------------------------------------------------------------- */ static struct i2c_driver i2c_driver; static int msp_attach(struct i2c_adapter *adapter, int address, int kind) { struct i2c_client *client; struct msp_state *state; int (*thread_func)(void *data) = NULL; int i; client = kmalloc(sizeof(*client), GFP_KERNEL); if (client == NULL) return -ENOMEM; memset(client, 0, sizeof(*client)); client->addr = address; client->adapter = adapter; client->driver = &i2c_driver; client->flags = I2C_CLIENT_ALLOW_USE; snprintf(client->name, sizeof(client->name) - 1, "msp3400"); if (msp_reset(client) == -1) { msp_dbg1("msp3400 not found\n"); kfree(client); return -1; } state = kmalloc(sizeof(*state), GFP_KERNEL); if (state == NULL) { kfree(client); return -ENOMEM; } i2c_set_clientdata(client, state); memset(state, 0, sizeof(*state)); state->norm = VIDEO_MODE_NTSC; state->left = 58880; /* 0db gain */ state->right = 58880; /* 0db gain */ state->bass = 32768; state->treble = 32768; state->input = -1; state->muted = 0; state->i2s_mode = 0; for (i = 0; i < DFP_COUNT; i++) state->dfp_regs[i] = -1; init_waitqueue_head(&state->wq); state->rev1 = msp_read_dsp(client, 0x1e); if (state->rev1 != -1) state->rev2 = msp_read_dsp(client, 0x1f); msp_dbg1("rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2); if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) { msp_dbg1("error while reading chip version\n"); kfree(state); kfree(client); return -1; } msp_set_volume(client, state->muted, state->left, state->right); snprintf(client->name, sizeof(client->name), "MSP%c4%02d%c-%c%d", ((state->rev1 >> 4) & 0x0f) + '3', (state->rev2 >> 8) & 0xff, (state->rev1 & 0x0f) + '@', ((state->rev1 >> 8) & 0xff) + '@', state->rev2 & 0x1f); state->opmode = opmode; if (state->opmode == OPMODE_AUTO) { /* MSP revision G and up have both autodetect and autoselect */ if ((state->rev1 & 0x0f) >= 'G'-'@') state->opmode = OPMODE_AUTOSELECT; /* MSP revision D and up have autodetect */ else if ((state->rev1 & 0x0f) >= 'D'-'@') state->opmode = OPMODE_AUTODETECT; else state->opmode = OPMODE_MANUAL; } /* hello world :-) */ msp_info("%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name); msp_info("%s ", client->name); if (HAVE_NICAM(state) && HAVE_RADIO(state)) printk("supports nicam and radio, "); else if (HAVE_NICAM(state)) printk("supports nicam, "); else if (HAVE_RADIO(state)) printk("supports radio, "); printk("mode is "); /* version-specific initialization */ switch (state->opmode) { case OPMODE_MANUAL: printk("manual"); thread_func = msp3400c_thread; break; case OPMODE_AUTODETECT: printk("autodetect"); thread_func = msp3410d_thread; break; case OPMODE_AUTOSELECT: printk("autodetect and autoselect"); thread_func = msp34xxg_thread; break; } printk("\n"); /* startup control thread if needed */ if (thread_func) { state->kthread = kthread_run(thread_func, client, "msp34xx"); if (NULL == state->kthread) msp_warn("kernel_thread() failed\n"); msp_wake_thread(client); } /* done */ i2c_attach_client(client); return 0; } static int msp_probe(struct i2c_adapter *adapter) { if (adapter->class & I2C_CLASS_TV_ANALOG) return i2c_probe(adapter, &addr_data, msp_attach); return 0; } static int msp_detach(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); int err; /* shutdown control thread */ if (state->kthread) { state->restart = 1; kthread_stop(state->kthread); } msp_reset(client); err = i2c_detach_client(client); if (err) { return err; } kfree(state); kfree(client); return 0; } /* ----------------------------------------------------------------------- */ /* i2c implementation */ static struct i2c_driver i2c_driver = { .name = "msp3400", .id = I2C_DRIVERID_MSP3400, .flags = I2C_DF_NOTIFY, .attach_adapter = msp_probe, .detach_client = msp_detach, .command = msp_command, .driver = { .suspend = msp_suspend, .resume = msp_resume, }, .owner = THIS_MODULE, }; static int __init msp3400_init_module(void) { return i2c_add_driver(&i2c_driver); } static void __exit msp3400_cleanup_module(void) { i2c_del_driver(&i2c_driver); } module_init(msp3400_init_module); module_exit(msp3400_cleanup_module); /* * Overrides for Emacs so that we follow Linus's tabbing style. * --------------------------------------------------------------------------- * Local variables: * c-basic-offset: 8 * End: */