/* * 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" #define OPMODE_AUTO -1 #define OPMODE_MANUAL 0 #define OPMODE_SIMPLE 1 /* use short programming (>= msp3410 only) */ #define OPMODE_SIMPLER 2 /* use shorter programming (>= msp34xxG) */ /* insmod 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 */ struct msp3400c { int rev1,rev2; int opmode; int mode; int norm; int nicam_on; int acb; int main, second; /* sound carrier */ int input; int source; /* see msp34xxg_set_source */ /* v4l2 */ int audmode; int rxsubchans; int muted; int volume, balance; int bass, treble; /* thread */ struct task_struct *kthread; wait_queue_head_t wq; int restart:1; int watch_stereo:1; }; #define HAVE_NICAM(msp) (((msp->rev2>>8) & 0xff) != 00) #define HAVE_SIMPLE(msp) ((msp->rev1 & 0xff) >= 'D'-'@') #define HAVE_SIMPLER(msp) ((msp->rev1 & 0xff) >= 'G'-'@') #define HAVE_RADIO(msp) ((msp->rev1 & 0xff) >= 'G'-'@') #define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */ /* ---------------------------------------------------------------------- */ #define dprintk if (debug >= 1) printk #define d2printk if (debug >= 2) printk /* 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(once, "No continuous stereo monitoring"); MODULE_PARM_DESC(debug, "Enable debug messages"); 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_DESCRIPTION("device driver for msp34xx TV sound processor"); MODULE_AUTHOR("Gerd Knorr"); MODULE_LICENSE("Dual BSD/GPL"); /* FreeBSD uses this too */ /* ---------------------------------------------------------------------- */ #define I2C_MSP3400C 0x80 #define I2C_MSP3400C_ALT 0x88 #define I2C_MSP3400C_DEM 0x10 #define I2C_MSP3400C_DFP 0x12 /* Addresses to scan */ static unsigned short normal_i2c[] = { I2C_MSP3400C >> 1, I2C_MSP3400C_ALT >> 1, I2C_CLIENT_END }; static unsigned short normal_i2c_range[] = {I2C_CLIENT_END,I2C_CLIENT_END}; I2C_CLIENT_INSMOD; /* ----------------------------------------------------------------------- */ /* functions for talking to the MSP3400C Sound processor */ static int msp3400c_reset(struct i2c_client *client) { /* reset and read revision code */ static char reset_off[3] = { 0x00, 0x80, 0x00 }; static char reset_on[3] = { 0x00, 0x00, 0x00 }; static char write[3] = { I2C_MSP3400C_DFP + 1, 0x00, 0x1e }; char 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 }, }; if ( (1 != i2c_transfer(client->adapter,&reset[0],1)) || (1 != i2c_transfer(client->adapter,&reset[1],1)) || (2 != i2c_transfer(client->adapter,test,2)) ) { printk(KERN_ERR "msp3400: chip reset failed\n"); return -1; } return 0; } static int msp3400c_read(struct i2c_client *client, int dev, int addr) { int err; unsigned char write[3]; unsigned char 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;) { if (2 == i2c_transfer(client->adapter,msgs,2)) break; err++; printk(KERN_WARNING "msp34xx: I/O error #%d (read 0x%02x/0x%02x)\n", err, dev, addr); msleep(10); } if (3 == err) { printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n"); msp3400c_reset(client); return -1; } return read[0] << 8 | read[1]; } static int msp3400c_write(struct i2c_client *client, int dev, int addr, int val) { int err; unsigned char buffer[5]; buffer[0] = dev; buffer[1] = addr >> 8; buffer[2] = addr & 0xff; buffer[3] = val >> 8; buffer[4] = val & 0xff; for (err = 0; err < 3;) { if (5 == i2c_master_send(client, buffer, 5)) break; err++; printk(KERN_WARNING "msp34xx: I/O error #%d (write 0x%02x/0x%02x)\n", err, dev, addr); msleep(10); } if (3 == err) { printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n"); msp3400c_reset(client); return -1; } return 0; } /* ------------------------------------------------------------------------ */ /* 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)) /* ----------------------------------------------------------------------- */ static int scarts[3][9] = { /* MASK IN1 IN2 IN1_DA IN2_DA IN3 IN4 MONO MUTE */ { 0x0320, 0x0000, 0x0200, -1, -1, 0x0300, 0x0020, 0x0100, 0x0320 }, { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 }, { 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 msp3400c_set_scart(struct i2c_client *client, int in, int out) { struct msp3400c *msp = i2c_get_clientdata(client); if (-1 == scarts[out][in]) return; dprintk(KERN_DEBUG "msp34xx: scart switch: %s => %d\n",scart_names[in],out); msp->acb &= ~scarts[out][SCART_MASK]; msp->acb |= scarts[out][in]; msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, msp->acb); } /* ------------------------------------------------------------------------ */ static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2) { msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff); msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12); msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff); msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12); msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/ } static void msp3400c_setvolume(struct i2c_client *client, int muted, int volume, int balance) { int val = 0, bal = 0; if (!muted) { /* 0x7f instead if 0x73 here has sound quality issues, * probably due to overmodulation + clipping ... */ val = (volume * 0x73 / 65535) << 8; } if (val) { bal = (balance / 256) - 128; } dprintk(KERN_DEBUG "msp34xx: setvolume: mute=%s %d:%d v=0x%02x b=0x%02x\n", muted ? "on" : "off", volume, balance, val>>8, bal); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, muted ? 0x01 : (val | 0x01)); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, bal << 8); } static void msp3400c_setbass(struct i2c_client *client, int bass) { int val = ((bass-32768) * 0x60 / 65535) << 8; dprintk(KERN_DEBUG "msp34xx: setbass: %d 0x%02x\n",bass, val>>8); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */ } static void msp3400c_settreble(struct i2c_client *client, int treble) { int val = ((treble-32768) * 0x60 / 65535) << 8; dprintk(KERN_DEBUG "msp34xx: settreble: %d 0x%02x\n",treble, val>>8); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */ } static void msp3400c_setmode(struct i2c_client *client, int type) { struct msp3400c *msp = i2c_get_clientdata(client); int i; dprintk(KERN_DEBUG "msp3400: setmode: %d\n",type); msp->mode = type; msp->audmode = V4L2_TUNER_MODE_MONO; msp->rxsubchans = V4L2_TUNER_SUB_MONO; msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb, /* ad_cv */ msp_init_data[type].ad_cv); for (i = 5; i >= 0; i--) /* fir 1 */ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001, msp_init_data[type].fir1[i]); msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */ msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040); msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000); for (i = 5; i >= 0; i--) msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, msp_init_data[type].fir2[i]); msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083, /* MODE_REG */ msp_init_data[type].mode_reg); msp3400c_setcarrier(client, msp_init_data[type].cdo1, msp_init_data[type].cdo2); msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/ if (dolby) { msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008, 0x0520); /* I2S1 */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009, 0x0620); /* I2S2 */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b, msp_init_data[type].dfp_src); } else { msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008, msp_init_data[type].dfp_src); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009, msp_init_data[type].dfp_src); msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b, msp_init_data[type].dfp_src); } msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a, msp_init_data[type].dfp_src); msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, msp_init_data[type].dfp_matrix); if (HAVE_NICAM(msp)) { /* nicam prescale */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */ } } static int best_audio_mode(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_set_audmode(struct i2c_client *client, int audmode) { static char *strmode[16] = { #if __GNUC__ >= 3 [ 0 ... 15 ] = "invalid", #endif [ V4L2_TUNER_MODE_MONO ] = "mono", [ V4L2_TUNER_MODE_STEREO ] = "stereo", [ V4L2_TUNER_MODE_LANG1 ] = "lang1", [ V4L2_TUNER_MODE_LANG2 ] = "lang2", }; struct msp3400c *msp = i2c_get_clientdata(client); int nicam=0; /* channel source: FM/AM or nicam */ int src=0; BUG_ON(msp->opmode == OPMODE_SIMPLER); msp->audmode = audmode; /* switch demodulator */ switch (msp->mode) { case MSP_MODE_FM_TERRA: dprintk(KERN_DEBUG "msp3400: FM setstereo: %s\n", strmode[audmode]); msp3400c_setcarrier(client,msp->second,msp->main); switch (audmode) { case V4L2_TUNER_MODE_STEREO: msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001); break; case V4L2_TUNER_MODE_MONO: case V4L2_TUNER_MODE_LANG1: case V4L2_TUNER_MODE_LANG2: msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000); break; } break; case MSP_MODE_FM_SAT: dprintk(KERN_DEBUG "msp3400: SAT setstereo: %s\n", strmode[audmode]); switch (audmode) { 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: dprintk(KERN_DEBUG "msp3400: NICAM setstereo: %s\n", strmode[audmode]); msp3400c_setcarrier(client,msp->second,msp->main); if (msp->nicam_on) nicam=0x0100; break; case MSP_MODE_BTSC: dprintk(KERN_DEBUG "msp3400: BTSC setstereo: %s\n", strmode[audmode]); nicam=0x0300; break; case MSP_MODE_EXTERN: dprintk(KERN_DEBUG "msp3400: extern setstereo: %s\n", strmode[audmode]); nicam = 0x0200; break; case MSP_MODE_FM_RADIO: dprintk(KERN_DEBUG "msp3400: FM-Radio setstereo: %s\n", strmode[audmode]); break; default: dprintk(KERN_DEBUG "msp3400: mono setstereo\n"); return; } /* switch audio */ switch (audmode) { case V4L2_TUNER_MODE_STEREO: src = 0x0020 | nicam; #if 0 /* spatial effect */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000); #endif break; case V4L2_TUNER_MODE_MONO: if (msp->mode == MSP_MODE_AM_NICAM) { dprintk("msp3400: switching to AM mono\n"); /* AM mono decoding is handled by tuner, not MSP chip */ /* SCART switching control register */ msp3400c_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; } dprintk(KERN_DEBUG "msp3400: setstereo final source/matrix = 0x%x\n", src); if (dolby) { msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620); msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src); msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src); } else { msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src); msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src); msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src); } } static void msp3400c_print_mode(struct msp3400c *msp) { if (msp->main == msp->second) { printk(KERN_DEBUG "msp3400: mono sound carrier: %d.%03d MHz\n", msp->main/910000,(msp->main/910)%1000); } else { printk(KERN_DEBUG "msp3400: main sound carrier: %d.%03d MHz\n", msp->main/910000,(msp->main/910)%1000); } if (msp->mode == MSP_MODE_FM_NICAM1 || msp->mode == MSP_MODE_FM_NICAM2) printk(KERN_DEBUG "msp3400: NICAM/FM carrier : %d.%03d MHz\n", msp->second/910000,(msp->second/910)%1000); if (msp->mode == MSP_MODE_AM_NICAM) printk(KERN_DEBUG "msp3400: NICAM/AM carrier : %d.%03d MHz\n", msp->second/910000,(msp->second/910)%1000); if (msp->mode == MSP_MODE_FM_TERRA && msp->main != msp->second) { printk(KERN_DEBUG "msp3400: FM-stereo carrier : %d.%03d MHz\n", msp->second/910000,(msp->second/910)%1000); } } /* ----------------------------------------------------------------------- */ struct REGISTER_DUMP { int addr; char *name; }; static int autodetect_stereo(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); int val; int rxsubchans = msp->rxsubchans; int newnicam = msp->nicam_on; int update = 0; switch (msp->mode) { case MSP_MODE_FM_TERRA: val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18); if (val > 32767) val -= 65536; dprintk(KERN_DEBUG "msp34xx: 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 = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23); dprintk(KERN_DEBUG "msp34xx: 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 = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200); dprintk(KERN_DEBUG "msp3410: 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 != msp->rxsubchans) { update = 1; dprintk(KERN_DEBUG "msp34xx: watch: rxsubchans %d => %d\n", msp->rxsubchans,rxsubchans); msp->rxsubchans = rxsubchans; } if (newnicam != msp->nicam_on) { update = 1; dprintk(KERN_DEBUG "msp34xx: watch: nicam %d => %d\n", msp->nicam_on,newnicam); msp->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 msp34xx_sleep(struct msp3400c *msp, int timeout) { DECLARE_WAITQUEUE(wait, current); again: add_wait_queue(&msp->wq, &wait); if (!kthread_should_stop()) { if (timeout < 0) { set_current_state(TASK_INTERRUPTIBLE); schedule(); } else { #if 0 /* hmm, that one doesn't return on wakeup ... */ msleep_interruptible(timeout); #else set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(msecs_to_jiffies(timeout)); #endif } } remove_wait_queue(&msp->wq, &wait); if (try_to_freeze(PF_FREEZE)) goto again; return msp->restart; } /* stereo/multilang monitoring */ static void watch_stereo(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); if (autodetect_stereo(client)) msp3400c_set_audmode(client,best_audio_mode(msp->rxsubchans)); if (once) msp->watch_stereo = 0; } static int msp3400c_thread(void *data) { struct i2c_client *client = data; struct msp3400c *msp = i2c_get_clientdata(client); struct CARRIER_DETECT *cd; int count, max1,max2,val1,val2, val,this; printk("msp3400: kthread started\n"); for (;;) { d2printk("msp3400: thread: sleep\n"); msp34xx_sleep(msp,-1); d2printk("msp3400: thread: wakeup\n"); restart: dprintk("msp3410: thread: restart scan\n"); msp->restart = 0; if (kthread_should_stop()) break; if (VIDEO_MODE_RADIO == msp->norm || MSP_MODE_EXTERN == msp->mode) { /* no carrier scan, just unmute */ printk("msp3400: thread: no carrier scan\n"); msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance); continue; } /* mute */ msp3400c_setvolume(client, msp->muted, 0, 0); msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ ); val1 = val2 = 0; max1 = max2 = -1; msp->watch_stereo = 0; /* some time for the tuner to sync */ if (msp34xx_sleep(msp,200)) goto restart; /* carrier detect pass #1 -- main carrier */ cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main); if (amsound && (msp->norm == VIDEO_MODE_SECAM)) { /* autodetect doesn't work well with AM ... */ max1 = 3; count = 0; dprintk("msp3400: AM sound override\n"); } for (this = 0; this < count; this++) { msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); if (msp34xx_sleep(msp,100)) goto restart; val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b); if (val > 32767) val -= 65536; if (val1 < val) val1 = val, max1 = this; dprintk("msp3400: 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 && (msp->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 (msp34xx_sleep(msp,100)) goto restart; val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b); if (val > 32767) val -= 65536; if (val2 < val) val2 = val, max2 = this; dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name); } /* programm the msp3400 according to the results */ msp->main = carrier_detect_main[max1].cdo; switch (max1) { case 1: /* 5.5 */ if (max2 == 0) { /* B/G FM-stereo */ msp->second = carrier_detect_55[max2].cdo; msp3400c_setmode(client, MSP_MODE_FM_TERRA); msp->nicam_on = 0; msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO); msp->watch_stereo = 1; } else if (max2 == 1 && HAVE_NICAM(msp)) { /* B/G NICAM */ msp->second = carrier_detect_55[max2].cdo; msp3400c_setmode(client, MSP_MODE_FM_NICAM1); msp->nicam_on = 1; msp3400c_setcarrier(client, msp->second, msp->main); msp->watch_stereo = 1; } else { goto no_second; } break; case 2: /* 6.0 */ /* PAL I NICAM */ msp->second = MSP_CARRIER(6.552); msp3400c_setmode(client, MSP_MODE_FM_NICAM2); msp->nicam_on = 1; msp3400c_setcarrier(client, msp->second, msp->main); msp->watch_stereo = 1; break; case 3: /* 6.5 */ if (max2 == 1 || max2 == 2) { /* D/K FM-stereo */ msp->second = carrier_detect_65[max2].cdo; msp3400c_setmode(client, MSP_MODE_FM_TERRA); msp->nicam_on = 0; msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO); msp->watch_stereo = 1; } else if (max2 == 0 && msp->norm == VIDEO_MODE_SECAM) { /* L NICAM or AM-mono */ msp->second = carrier_detect_65[max2].cdo; msp3400c_setmode(client, MSP_MODE_AM_NICAM); msp->nicam_on = 0; msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO); msp3400c_setcarrier(client, msp->second, msp->main); /* volume prescale for SCART (AM mono input) */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900); msp->watch_stereo = 1; } else if (max2 == 0 && HAVE_NICAM(msp)) { /* D/K NICAM */ msp->second = carrier_detect_65[max2].cdo; msp3400c_setmode(client, MSP_MODE_FM_NICAM1); msp->nicam_on = 1; msp3400c_setcarrier(client, msp->second, msp->main); msp->watch_stereo = 1; } else { goto no_second; } break; case 0: /* 4.5 */ default: no_second: msp->second = carrier_detect_main[max1].cdo; msp3400c_setmode(client, MSP_MODE_FM_TERRA); msp->nicam_on = 0; msp3400c_setcarrier(client, msp->second, msp->main); msp->rxsubchans = V4L2_TUNER_SUB_MONO; msp3400c_set_audmode(client, V4L2_TUNER_MODE_MONO); break; } /* unmute */ msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance); if (debug) msp3400c_print_mode(msp); /* monitor tv audio mode */ while (msp->watch_stereo) { if (msp34xx_sleep(msp,5000)) goto restart; watch_stereo(client); } } dprintk(KERN_DEBUG "msp3400: 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, "ERROR" }, { 0x0001, 0, 0, "autodetect start" }, { 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 *msp34xx_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 msp34xx_modus(int norm) { switch (norm) { case VIDEO_MODE_PAL: #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 */ return 0x2003; case VIDEO_MODE_SECAM: return 0x0003; case VIDEO_MODE_RADIO: return 0x0003; case VIDEO_MODE_AUTO: return 0x2003; default: return 0x0003; } } static int msp34xx_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 msp3400c *msp = i2c_get_clientdata(client); int mode,val,i,std; printk("msp3410: daemon started\n"); for (;;) { d2printk(KERN_DEBUG "msp3410: thread: sleep\n"); msp34xx_sleep(msp,-1); d2printk(KERN_DEBUG "msp3410: thread: wakeup\n"); restart: dprintk("msp3410: thread: restart scan\n"); msp->restart = 0; if (kthread_should_stop()) break; if (msp->mode == MSP_MODE_EXTERN) { /* no carrier scan needed, just unmute */ dprintk(KERN_DEBUG "msp3410: thread: no carrier scan\n"); msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance); continue; } /* put into sane state (and mute) */ msp3400c_reset(client); /* some time for the tuner to sync */ if (msp34xx_sleep(msp,200)) goto restart; /* start autodetect */ mode = msp34xx_modus(msp->norm); std = msp34xx_standard(msp->norm); msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode); msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std); msp->watch_stereo = 0; if (debug) printk(KERN_DEBUG "msp3410: setting mode: %s (0x%04x)\n", msp34xx_standard_mode_name(std) ,std); if (std != 1) { /* programmed some specific mode */ val = std; } else { /* triggered autodetect */ for (;;) { if (msp34xx_sleep(msp,100)) goto restart; /* check results */ val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e); if (val < 0x07ff) break; dprintk(KERN_DEBUG "msp3410: detection still in progress\n"); } } for (i = 0; modelist[i].name != NULL; i++) if (modelist[i].retval == val) break; dprintk(KERN_DEBUG "msp3410: current mode: %s (0x%04x)\n", modelist[i].name ? modelist[i].name : "unknown", val); msp->main = modelist[i].main; msp->second = modelist[i].second; if (amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) { /* autodetection has failed, let backup */ dprintk(KERN_DEBUG "msp3410: autodetection failed," " switching to backup mode: %s (0x%04x)\n", modelist[8].name ? modelist[8].name : "unknown",val); val = 0x0009; msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val); } /* set various prescales */ msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */ msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */ msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */ /* set stereo */ switch (val) { case 0x0008: /* B/G NICAM */ case 0x000a: /* I NICAM */ if (val == 0x0008) msp->mode = MSP_MODE_FM_NICAM1; else msp->mode = MSP_MODE_FM_NICAM2; /* just turn on stereo */ msp->rxsubchans = V4L2_TUNER_SUB_STEREO; msp->nicam_on = 1; msp->watch_stereo = 1; msp3400c_set_audmode(client,V4L2_TUNER_MODE_STEREO); break; case 0x0009: msp->mode = MSP_MODE_AM_NICAM; msp->rxsubchans = V4L2_TUNER_SUB_MONO; msp->nicam_on = 1; msp3400c_set_audmode(client,V4L2_TUNER_MODE_MONO); msp->watch_stereo = 1; break; case 0x0020: /* BTSC */ /* just turn on stereo */ msp->mode = MSP_MODE_BTSC; msp->rxsubchans = V4L2_TUNER_SUB_STEREO; msp->nicam_on = 0; msp->watch_stereo = 1; msp3400c_set_audmode(client,V4L2_TUNER_MODE_STEREO); break; case 0x0040: /* FM radio */ msp->mode = MSP_MODE_FM_RADIO; msp->rxsubchans = V4L2_TUNER_SUB_STEREO; msp->audmode = V4L2_TUNER_MODE_STEREO; msp->nicam_on = 0; msp->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 */ msp3400c_set_scart(client,SCART_IN2,0); #if 0 /* radio from SCART_IN2 */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220); msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220); #else /* msp34xx does radio decoding */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0020); msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0020); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0020); #endif break; case 0x0003: case 0x0004: case 0x0005: msp->mode = MSP_MODE_FM_TERRA; msp->rxsubchans = V4L2_TUNER_SUB_MONO; msp->audmode = V4L2_TUNER_MODE_MONO; msp->nicam_on = 0; msp->watch_stereo = 1; break; } /* unmute, restore misc registers */ msp3400c_setbass(client, msp->bass); msp3400c_settreble(client, msp->treble); msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance); msp3400c_write(client, I2C_MSP3400C_DFP, 0x0013, msp->acb); /* monitor tv audio mode */ while (msp->watch_stereo) { if (msp34xx_sleep(msp,5000)) goto restart; watch_stereo(client); } } dprintk(KERN_DEBUG "msp3410: thread: exit\n"); return 0; } /* ----------------------------------------------------------------------- */ /* msp34xxG + (simpler 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 msp->norm * return 0 if it worked, -1 if it failed */ static int msp34xxg_init(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); int modus,std; if (msp3400c_reset(client)) return -1; /* make sure that input/output is muted (paranoid mode) */ if (msp3400c_write(client, I2C_MSP3400C_DFP, 0x13, /* ACB */ 0x0f20 /* mute DSP input, mute SCART 1 */)) return -1; /* step-by-step initialisation, as described in the manual */ modus = msp34xx_modus(msp->norm); std = msp34xx_standard(msp->norm); modus &= ~0x03; /* STATUS_CHANGE=0 */ modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION=1 */ if (msp3400c_write(client, I2C_MSP3400C_DEM, 0x30/*MODUS*/, modus)) return -1; if (msp3400c_write(client, I2C_MSP3400C_DEM, 0x20/*stanard*/, std)) return -1; /* write the dfps that may have an influence on standard/audio autodetection right now */ msp34xxg_set_source(client, msp->source); if (msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, /* AM/FM Prescale */ 0x3000 /* default: [15:8] 75khz deviation */)) return -1; if (msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, /* NICAM Prescale */ 0x5a00 /* default: 9db gain (as recommended) */)) return -1; if (msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, /* STANDARD SELECT */ standard /* default: 0x01 for automatic standard select*/)) return -1; return 0; } static int msp34xxg_thread(void *data) { struct i2c_client *client = data; struct msp3400c *msp = i2c_get_clientdata(client); int val, std, i; printk("msp34xxg: daemon started\n"); msp->source = 1; /* default */ for (;;) { d2printk(KERN_DEBUG "msp34xxg: thread: sleep\n"); msp34xx_sleep(msp,-1); d2printk(KERN_DEBUG "msp34xxg: thread: wakeup\n"); restart: dprintk("msp34xxg: thread: restart scan\n"); msp->restart = 0; if (kthread_should_stop()) break; /* setup the chip*/ msp34xxg_init(client); std = standard; if (std != 0x01) goto unmute; /* watch autodetect */ dprintk("msp34xxg: triggered autodetect, waiting for result\n"); for (i = 0; i < 10; i++) { if (msp34xx_sleep(msp,100)) goto restart; /* check results */ val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e); if (val < 0x07ff) { std = val; break; } dprintk("msp34xxg: detection still in progress\n"); } if (0x01 == std) { dprintk("msp34xxg: detection still in progress after 10 tries. giving up.\n"); continue; } unmute: dprintk("msp34xxg: current mode: %s (0x%04x)\n", msp34xx_standard_mode_name(std), std); /* unmute: dispatch sound to scart output, set scart volume */ dprintk("msp34xxg: unmute\n"); msp3400c_setbass(client, msp->bass); msp3400c_settreble(client, msp->treble); msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance); /* restore ACB */ if (msp3400c_write(client, I2C_MSP3400C_DFP, 0x13, /* ACB */ msp->acb)) return -1; } dprintk(KERN_DEBUG "msp34xxg: 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 msp3400c *msp = 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); dprintk("msp34xxg: set source to %d (0x%x)\n", source, value); msp3400c_write(client, I2C_MSP3400C_DFP, 0x08, /* Loudspeaker Output */ value); msp3400c_write(client, I2C_MSP3400C_DFP, 0x0a, /* SCART1 DA Output */ value); msp3400c_write(client, I2C_MSP3400C_DFP, 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 */ msp3400c_write(client, I2C_MSP3400C_DEM, 0x22, /* a2 threshold for stereo/bilingual */ stereo_threshold); msp->source=source; } static void msp34xxg_detect_stereo(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); int status = msp3400c_read(client, I2C_MSP3400C_DEM, 0x0200 /* STATUS */); int is_bilingual = status&0x100; int is_stereo = status&0x40; msp->rxsubchans = 0; if (is_stereo) msp->rxsubchans |= V4L2_TUNER_SUB_STEREO; else msp->rxsubchans |= V4L2_TUNER_SUB_MONO; if (is_bilingual) { msp->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. */ } dprintk("msp34xxg: status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", status, is_stereo, is_bilingual, msp->rxsubchans); } static void msp34xxg_set_audmode(struct i2c_client *client, int audmode) { struct msp3400c *msp = 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; } msp->audmode = audmode; msp34xxg_set_source(client, source); } /* ----------------------------------------------------------------------- */ static int msp_attach(struct i2c_adapter *adap, int addr, int kind); static int msp_detach(struct i2c_client *client); static int msp_probe(struct i2c_adapter *adap); static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg); static int msp_suspend(struct device * dev, pm_message_t state, u32 level); static int msp_resume(struct device * dev, u32 level); static void msp_wake_thread(struct i2c_client *client); static struct i2c_driver driver = { .owner = THIS_MODULE, .name = "i2c msp3400 driver", .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, }, }; static struct i2c_client client_template = { I2C_DEVNAME("(unset)"), .flags = I2C_CLIENT_ALLOW_USE, .driver = &driver, }; static int msp_attach(struct i2c_adapter *adap, int addr, int kind) { struct msp3400c *msp; struct i2c_client *c; int (*thread_func)(void *data) = NULL; client_template.adapter = adap; client_template.addr = addr; if (-1 == msp3400c_reset(&client_template)) { dprintk("msp3400: no chip found\n"); return -1; } if (NULL == (c = kmalloc(sizeof(struct i2c_client),GFP_KERNEL))) return -ENOMEM; memcpy(c,&client_template,sizeof(struct i2c_client)); if (NULL == (msp = kmalloc(sizeof(struct msp3400c),GFP_KERNEL))) { kfree(c); return -ENOMEM; } memset(msp,0,sizeof(struct msp3400c)); msp->volume = 58880; /* 0db gain */ msp->balance = 32768; msp->bass = 32768; msp->treble = 32768; msp->input = -1; msp->muted = 1; i2c_set_clientdata(c, msp); init_waitqueue_head(&msp->wq); if (-1 == msp3400c_reset(c)) { kfree(msp); kfree(c); dprintk("msp3400: no chip found\n"); return -1; } msp->rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e); if (-1 != msp->rev1) msp->rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f); if ((-1 == msp->rev1) || (0 == msp->rev1 && 0 == msp->rev2)) { kfree(msp); kfree(c); printk("msp3400: error while reading chip version\n"); return -1; } #if 0 /* this will turn on a 1kHz beep - might be useful for debugging... */ msp3400c_write(c,I2C_MSP3400C_DFP, 0x0014, 0x1040); #endif msp3400c_setvolume(c, msp->muted, msp->volume, msp->balance); snprintf(c->name, sizeof(c->name), "MSP34%02d%c-%c%d", (msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@', ((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f); msp->opmode = opmode; if (OPMODE_AUTO == msp->opmode) { if (HAVE_SIMPLER(msp)) msp->opmode = OPMODE_SIMPLER; else if (HAVE_SIMPLE(msp)) msp->opmode = OPMODE_SIMPLE; else msp->opmode = OPMODE_MANUAL; } /* hello world :-) */ printk(KERN_INFO "msp34xx: init: chip=%s",i2c_clientname(c)); if (HAVE_NICAM(msp)) printk(" +nicam"); if (HAVE_SIMPLE(msp)) printk(" +simple"); if (HAVE_SIMPLER(msp)) printk(" +simpler"); if (HAVE_RADIO(msp)) printk(" +radio"); /* version-specific initialization */ switch (msp->opmode) { case OPMODE_MANUAL: printk(" mode=manual"); thread_func = msp3400c_thread; break; case OPMODE_SIMPLE: printk(" mode=simple"); thread_func = msp3410d_thread; break; case OPMODE_SIMPLER: printk(" mode=simpler"); thread_func = msp34xxg_thread; break; } printk("\n"); /* startup control thread if needed */ if (thread_func) { msp->kthread = kthread_run(thread_func, c, "msp34xx"); if (NULL == msp->kthread) printk(KERN_WARNING "msp34xx: kernel_thread() failed\n"); msp_wake_thread(c); } /* done */ i2c_attach_client(c); return 0; } static int msp_detach(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); /* shutdown control thread */ if (msp->kthread >= 0) { msp->restart = 1; kthread_stop(msp->kthread); } msp3400c_reset(client); i2c_detach_client(client); kfree(msp); kfree(client); return 0; } static int msp_probe(struct i2c_adapter *adap) { if (adap->class & I2C_CLASS_TV_ANALOG) return i2c_probe(adap, &addr_data, msp_attach); return 0; } static void msp_wake_thread(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); if (NULL == msp->kthread) return; msp3400c_setvolume(client,msp->muted,0,0); msp->watch_stereo = 0; msp->restart = 1; wake_up_interruptible(&msp->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 msp3400c *msp = i2c_get_clientdata(client); switch (msp->opmode) { case OPMODE_MANUAL: case OPMODE_SIMPLE: autodetect_stereo(client); break; case OPMODE_SIMPLER: msp34xxg_detect_stereo(client); break; } } static void msp_any_set_audmode(struct i2c_client *client, int audmode) { struct msp3400c *msp = i2c_get_clientdata(client); switch (msp->opmode) { case OPMODE_MANUAL: case OPMODE_SIMPLE: msp->watch_stereo = 0; msp3400c_set_audmode(client, audmode); break; case OPMODE_SIMPLER: msp34xxg_set_audmode(client, audmode); break; } } static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg) { struct msp3400c *msp = i2c_get_clientdata(client); __u16 *sarg = arg; int scart = 0; switch (cmd) { case AUDC_SET_INPUT: dprintk(KERN_DEBUG "msp34xx: AUDC_SET_INPUT(%d)\n",*sarg); if (*sarg == msp->input) break; msp->input = *sarg; switch (*sarg) { case AUDIO_RADIO: /* Hauppauge uses IN2 for the radio */ msp->mode = MSP_MODE_FM_RADIO; scart = SCART_IN2; break; case AUDIO_EXTERN_1: /* IN1 is often used for external input ... */ msp->mode = MSP_MODE_EXTERN; scart = SCART_IN1; break; case AUDIO_EXTERN_2: /* ... sometimes it is IN2 through ;) */ msp->mode = MSP_MODE_EXTERN; scart = SCART_IN2; break; case AUDIO_TUNER: msp->mode = -1; break; default: if (*sarg & AUDIO_MUTE) msp3400c_set_scart(client,SCART_MUTE,0); break; } if (scart) { msp->rxsubchans = V4L2_TUNER_SUB_STEREO; msp->audmode = V4L2_TUNER_MODE_STEREO; msp3400c_set_scart(client,scart,0); msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900); if (msp->opmode != OPMODE_SIMPLER) msp3400c_set_audmode(client, msp->audmode); } msp_wake_thread(client); break; case AUDC_SET_RADIO: dprintk(KERN_DEBUG "msp34xx: AUDC_SET_RADIO\n"); msp->norm = VIDEO_MODE_RADIO; dprintk(KERN_DEBUG "msp34xx: switching to radio mode\n"); msp->watch_stereo = 0; switch (msp->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)); msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance); break; case OPMODE_SIMPLE: case OPMODE_SIMPLER: /* the thread will do for us */ msp_wake_thread(client); break; } break; /* --- v4l ioctls --- */ /* take care: bttv does userspace copying, we'll get a kernel pointer here... */ case VIDIOCGAUDIO: { struct video_audio *va = arg; dprintk(KERN_DEBUG "msp34xx: VIDIOCGAUDIO\n"); va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE | VIDEO_AUDIO_MUTABLE; if (msp->muted) va->flags |= VIDEO_AUDIO_MUTE; va->volume = msp->volume; va->balance = (va->volume) ? msp->balance : 32768; va->bass = msp->bass; va->treble = msp->treble; msp_any_detect_stereo(client); va->mode = mode_v4l2_to_v4l1(msp->rxsubchans); break; } case VIDIOCSAUDIO: { struct video_audio *va = arg; dprintk(KERN_DEBUG "msp34xx: VIDIOCSAUDIO\n"); msp->muted = (va->flags & VIDEO_AUDIO_MUTE); msp->volume = va->volume; msp->balance = va->balance; msp->bass = va->bass; msp->treble = va->treble; msp3400c_setvolume(client, msp->muted, msp->volume, msp->balance); msp3400c_setbass(client,msp->bass); msp3400c_settreble(client,msp->treble); if (va->mode != 0 && msp->norm != VIDEO_MODE_RADIO) msp_any_set_audmode(client,mode_v4l1_to_v4l2(va->mode)); break; } case VIDIOCSCHAN: { struct video_channel *vc = arg; dprintk(KERN_DEBUG "msp34xx: VIDIOCSCHAN (norm=%d)\n",vc->norm); msp->norm = vc->norm; msp_wake_thread(client); break; } case VIDIOCSFREQ: case VIDIOC_S_FREQUENCY: { /* new channel -- kick audio carrier scan */ dprintk(KERN_DEBUG "msp34xx: VIDIOCSFREQ\n"); msp_wake_thread(client); break; } /* --- v4l2 ioctls --- */ case VIDIOC_G_TUNER: { struct v4l2_tuner *vt = arg; msp_any_detect_stereo(client); vt->audmode = msp->audmode; vt->rxsubchans = msp->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; } /* msp34xx specific */ case MSP_SET_MATRIX: { struct msp_matrix *mspm = arg; dprintk(KERN_DEBUG "msp34xx: MSP_SET_MATRIX\n"); msp3400c_set_scart(client, mspm->input, mspm->output); break; } default: /* nothing */ break; } return 0; } static int msp_suspend(struct device * dev, pm_message_t state, u32 level) { struct i2c_client *c = container_of(dev, struct i2c_client, dev); dprintk("msp34xx: suspend\n"); msp3400c_reset(c); return 0; } static int msp_resume(struct device * dev, u32 level) { struct i2c_client *c = container_of(dev, struct i2c_client, dev); dprintk("msp34xx: resume\n"); msp_wake_thread(c); return 0; } /* ----------------------------------------------------------------------- */ static int __init msp3400_init_module(void) { return i2c_add_driver(&driver); } static void __exit msp3400_cleanup_module(void) { i2c_del_driver(&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: */