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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [media/] [video/] [msp3400.c] - Rev 1774
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/* * programming the msp34* sound processor family * * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org> * * what works and what doesn't: * * AM-Mono * Support for Hauppauge cards added (decoding handled by tuner) added by * Frederic Crozat <fcrozat@mail.dotcom.fr> * * 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 <pp@netppl.fi> * * * TODO: * - better SAT support * * * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch) * using soundcore instead of OSS * */ #include <linux/config.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/string.h> #include <linux/timer.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/i2c.h> #include <linux/videodev.h> #include <linux/init.h> #include <linux/smp_lock.h> #include <asm/semaphore.h> #include <asm/pgtable.h> #include "audiochip.h" #include "i2c-compat.h" #include "msp3400.h" /* insmod parameters */ 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 simple = -1; /* use short programming (>= msp3410 only) */ static int dolby = 0; #define DFP_COUNT 0x41 static const int bl_dfp[] = { 0x00, 0x01, 0x02, 0x03, 0x06, 0x08, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x10 }; struct msp3400c { int rev1,rev2; int simple; int mode; int norm; int stereo; int nicam_on; int acb; int main, second; /* sound carrier */ int input; int muted; int left, right; /* volume */ int bass, treble; /* shadow register set */ int dfp_regs[DFP_COUNT]; /* thread */ struct task_struct *thread; wait_queue_head_t wq; struct semaphore *notify; int active,restart,rmmod; int watch_stereo; struct timer_list wake_stereo; }; #define HAVE_NICAM(msp) (((msp->rev2>>8) & 0xff) != 00) #define HAVE_SIMPLE(msp) ((msp->rev1 & 0xff) >= 'D'-'@') #define HAVE_RADIO(msp) ((msp->rev1 & 0xff) >= 'G'-'@') #define MSP3400_MAX 4 static struct i2c_client *msps[MSP3400_MAX]; #define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */ /* ---------------------------------------------------------------------- */ #define dprintk if (debug) printk MODULE_PARM(once,"i"); MODULE_PARM(debug,"i"); MODULE_PARM(simple,"i"); MODULE_PARM(amsound,"i"); MODULE_PARM(dolby,"i"); 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 */ #ifndef I2C_M_IGNORE_NAK # define I2C_M_IGNORE_NAK 0x1000 #endif 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); current->state = TASK_INTERRUPTIBLE; schedule_timeout(HZ/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); current->state = TASK_INTERRUPTIBLE; schedule_timeout(HZ/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)) /* ----------------------------------------------------------------------- */ #define SCART_MASK 0 #define SCART_IN1 1 #define SCART_IN2 2 #define SCART_IN1_DA 3 #define SCART_IN2_DA 4 #define SCART_IN3 5 #define SCART_IN4 6 #define SCART_MONO 7 #define SCART_MUTE 8 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 left, int right) { int vol = 0,val = 0,balance = 0; if (!muted) { vol = (left > right) ? left : right; val = (vol * 0x73 / 65535) << 8; } if (vol > 0) { balance = ((right-left) * 127) / vol; } dprintk(KERN_DEBUG "msp34xx: setvolume: mute=%s %d:%d v=0x%02x b=0x%02x\n", muted ? "on" : "off", left, right, val>>8, balance); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones */ /* scart - on/off only */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, val ? 0x4000 : 0); msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, balance << 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->stereo = VIDEO_SOUND_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 */ } } /* turn on/off nicam + stereo */ static void msp3400c_setstereo(struct i2c_client *client, int mode) { static char *strmode[16] = { #if __GNUC__ >= 3 [ 0 ... 15 ] = "invalid", #endif [ VIDEO_SOUND_MONO ] = "mono", [ VIDEO_SOUND_STEREO ] = "stereo", [ VIDEO_SOUND_LANG1 ] = "lang1", [ VIDEO_SOUND_LANG2 ] = "lang2", }; struct msp3400c *msp = i2c_get_clientdata(client); int nicam=0; /* channel source: FM/AM or nicam */ int src=0; /* switch demodulator */ switch (msp->mode) { case MSP_MODE_FM_TERRA: dprintk(KERN_DEBUG "msp3400: FM setstereo: %s\n",strmode[mode]); msp3400c_setcarrier(client,msp->second,msp->main); switch (mode) { case VIDEO_SOUND_STEREO: msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001); break; case VIDEO_SOUND_MONO: case VIDEO_SOUND_LANG1: case VIDEO_SOUND_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[mode]); switch (mode) { case VIDEO_SOUND_MONO: msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); break; case VIDEO_SOUND_STEREO: msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); break; case VIDEO_SOUND_LANG1: msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); break; case VIDEO_SOUND_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[mode]); 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[mode]); nicam=0x0300; break; case MSP_MODE_EXTERN: dprintk(KERN_DEBUG "msp3400: extern setstereo: %s\n",strmode[mode]); nicam = 0x0200; break; case MSP_MODE_FM_RADIO: dprintk(KERN_DEBUG "msp3400: FM-Radio setstereo: %s\n",strmode[mode]); break; default: dprintk(KERN_DEBUG "msp3400: mono setstereo\n"); return; } /* switch audio */ switch (mode) { case VIDEO_SOUND_STEREO: src = 0x0020 | nicam; #if 0 /* spatial effect */ msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000); #endif break; case VIDEO_SOUND_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 VIDEO_SOUND_LANG1: src = 0x0000 | nicam; break; case VIDEO_SOUND_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); } } static void msp3400c_restore_dfp(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); int i; for (i = 0; i < DFP_COUNT; i++) { if (-1 == msp->dfp_regs[i]) continue; msp3400c_write(client,I2C_MSP3400C_DFP, i, msp->dfp_regs[i]); } } /* ----------------------------------------------------------------------- */ 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 msp3400c *msp = i2c_get_clientdata(client); int val; int newstereo = msp->stereo; 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) { newstereo = VIDEO_SOUND_STEREO | VIDEO_SOUND_MONO; } else if (val < -4096) { newstereo = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; } else { newstereo = VIDEO_SOUND_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: newstereo = VIDEO_SOUND_STEREO; break; case 1: case 9: newstereo = VIDEO_SOUND_MONO | VIDEO_SOUND_LANG1; break; case 2: case 10: newstereo = VIDEO_SOUND_MONO | VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2; break; default: newstereo = VIDEO_SOUND_MONO; break; } newnicam=1; } else { newnicam = 0; newstereo = VIDEO_SOUND_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" : ""); newstereo = VIDEO_SOUND_MONO; if (val & 0x0040) newstereo |= VIDEO_SOUND_STEREO; if (val & 0x0100) newstereo |= VIDEO_SOUND_LANG1; break; } if (newstereo != msp->stereo) { update = 1; dprintk(KERN_DEBUG "msp34xx: watch: stereo %d => %d\n", msp->stereo,newstereo); msp->stereo = newstereo; } 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 void msp3400c_stereo_wake(unsigned long data) { struct msp3400c *msp = (struct msp3400c*)data; /* XXX alpha ??? */ wake_up_interruptible(&msp->wq); } /* stereo/multilang monitoring */ static void watch_stereo(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); if (autodetect_stereo(client)) { if (msp->stereo & VIDEO_SOUND_STEREO) msp3400c_setstereo(client,VIDEO_SOUND_STEREO); else if (msp->stereo & VIDEO_SOUND_LANG1) msp3400c_setstereo(client,VIDEO_SOUND_LANG1); else if (msp->stereo & VIDEO_SOUND_LANG2) msp3400c_setstereo(client,VIDEO_SOUND_LANG2); else msp3400c_setstereo(client,VIDEO_SOUND_MONO); } if (once) msp->watch_stereo = 0; if (msp->watch_stereo) mod_timer(&msp->wake_stereo, jiffies+5*HZ); } 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; lock_kernel(); daemonize(); sigfillset(¤t->blocked); strcpy(current->comm,"msp3400"); msp->thread = current; unlock_kernel(); printk("msp3400: daemon started\n"); if(msp->notify != NULL) up(msp->notify); for (;;) { if (msp->rmmod) goto done; if (debug > 1) printk("msp3400: thread: sleep\n"); interruptible_sleep_on(&msp->wq); if (debug > 1) printk("msp3400: thread: wakeup\n"); if (msp->rmmod || signal_pending(current)) goto done; msp->active = 1; if (msp->watch_stereo) { watch_stereo(client); msp->active = 0; continue; } /* some time for the tuner to sync */ current->state = TASK_INTERRUPTIBLE; schedule_timeout(HZ/5); if (signal_pending(current)) goto done; restart: 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->left, msp->right); continue; } msp->restart = 0; msp3400c_setvolume(client, msp->muted, 0, 0); msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ ); val1 = val2 = 0; max1 = max2 = -1; del_timer(&msp->wake_stereo); msp->watch_stereo = 0; /* 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); current->state = TASK_INTERRUPTIBLE; schedule_timeout(HZ/10); if (signal_pending(current)) goto done; if (msp->restart) msp->restart = 0; 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); current->state = TASK_INTERRUPTIBLE; schedule_timeout(HZ/10); if (signal_pending(current)) goto done; if (msp->restart) 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_setstereo(client, VIDEO_SOUND_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_setstereo(client, VIDEO_SOUND_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_setstereo(client, VIDEO_SOUND_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->stereo = VIDEO_SOUND_MONO; msp3400c_setstereo(client, VIDEO_SOUND_MONO); break; } /* unmute + restore dfp registers */ msp3400c_setvolume(client, msp->muted, msp->left, msp->right); msp3400c_restore_dfp(client); if (msp->watch_stereo) mod_timer(&msp->wake_stereo, jiffies+5*HZ); if (debug) msp3400c_print_mode(msp); msp->active = 0; } done: dprintk(KERN_DEBUG "msp3400: thread: exit\n"); msp->active = 0; msp->thread = NULL; if(msp->notify != NULL) up(msp->notify); 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 int msp3410d_thread(void *data) { struct i2c_client *client = data; struct msp3400c *msp = i2c_get_clientdata(client); int mode,val,i,std; lock_kernel(); daemonize(); sigfillset(¤t->blocked); strcpy(current->comm,"msp3410 [auto]"); msp->thread = current; unlock_kernel(); printk("msp3410: daemon started\n"); if(msp->notify != NULL) up(msp->notify); for (;;) { if (msp->rmmod) goto done; if (debug > 1) printk(KERN_DEBUG "msp3410: thread: sleep\n"); interruptible_sleep_on(&msp->wq); if (debug > 1) printk(KERN_DEBUG "msp3410: thread: wakeup\n"); if (msp->rmmod || signal_pending(current)) goto done; msp->active = 1; if (msp->watch_stereo) { watch_stereo(client); msp->active = 0; continue; } /* some time for the tuner to sync */ current->state = TASK_INTERRUPTIBLE; schedule_timeout(HZ/5); if (signal_pending(current)) goto done; restart: 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->left, msp->right); continue; } msp->restart = 0; del_timer(&msp->wake_stereo); msp->watch_stereo = 0; /* put into sane state (and mute) */ msp3400c_reset(client); /* start autodetect */ switch (msp->norm) { case VIDEO_MODE_PAL: mode = 0x1003; std = 1; break; case VIDEO_MODE_NTSC: /* BTSC */ mode = 0x2003; std = 0x0020; break; case VIDEO_MODE_SECAM: mode = 0x0003; std = 1; break; case VIDEO_MODE_RADIO: mode = 0x0003; std = 0x0040; break; default: mode = 0x0003; std = 1; break; } msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode); msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std); if (debug) { int i; for (i = 0; modelist[i].name != NULL; i++) if (modelist[i].retval == std) break; printk(KERN_DEBUG "msp3410: setting mode: %s (0x%04x)\n", modelist[i].name ? modelist[i].name : "unknown",std); } if (std != 1) { /* programmed some specific mode */ val = std; } else { /* triggered autodetect */ for (;;) { current->state = TASK_INTERRUPTIBLE; schedule_timeout(HZ/10); if (signal_pending(current)) goto done; if (msp->restart) 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->stereo = VIDEO_SOUND_STEREO; msp->nicam_on = 1; msp->watch_stereo = 1; msp3400c_setstereo(client,VIDEO_SOUND_STEREO); break; case 0x0009: msp->mode = MSP_MODE_AM_NICAM; msp->stereo = VIDEO_SOUND_MONO; msp->nicam_on = 1; msp3400c_setstereo(client,VIDEO_SOUND_MONO); msp->watch_stereo = 1; break; case 0x0020: /* BTSC */ /* just turn on stereo */ msp->mode = MSP_MODE_BTSC; msp->stereo = VIDEO_SOUND_STEREO; msp->nicam_on = 0; msp->watch_stereo = 1; msp3400c_setstereo(client,VIDEO_SOUND_STEREO); break; case 0x0040: /* FM radio */ msp->mode = MSP_MODE_FM_RADIO; msp->stereo = VIDEO_SOUND_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: msp->mode = MSP_MODE_FM_TERRA; msp->stereo = VIDEO_SOUND_MONO; msp->nicam_on = 0; msp->watch_stereo = 1; break; } /* unmute + restore dfp registers */ msp3400c_setbass(client, msp->bass); msp3400c_settreble(client, msp->treble); msp3400c_setvolume(client, msp->muted, msp->left, msp->right); msp3400c_restore_dfp(client); if (msp->watch_stereo) mod_timer(&msp->wake_stereo, jiffies+HZ); msp->active = 0; } done: dprintk(KERN_DEBUG "msp3410: thread: exit\n"); msp->active = 0; msp->thread = NULL; if(msp->notify != NULL) up(msp->notify); return 0; } /* ----------------------------------------------------------------------- */ static int msp_attach(struct i2c_adapter *adap, int addr, unsigned short flags, 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 struct i2c_driver driver = { .name = "i2c msp3400 driver", .id = I2C_DRIVERID_MSP3400, .flags = I2C_DF_NOTIFY, .attach_adapter = msp_probe, .detach_client = msp_detach, .command = msp_command, }; 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, unsigned short flags, int kind) { DECLARE_MUTEX_LOCKED(sem); struct msp3400c *msp; struct i2c_client *c; int i, rc; 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->left = 65535; msp->right = 65535; msp->bass = 32768; msp->treble = 32768; msp->input = -1; msp->muted = 1; for (i = 0; i < DFP_COUNT; i++) msp->dfp_regs[i] = -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->left,msp->right); sprintf(c->name,"MSP34%02d%c-%c%d", (msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@', ((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f); if (simple == -1) { /* default mode */ msp->simple = HAVE_SIMPLE(msp); } else { /* use insmod option */ msp->simple = simple; } /* timer for stereo checking */ init_timer(&msp->wake_stereo); msp->wake_stereo.function = msp3400c_stereo_wake; msp->wake_stereo.data = (unsigned long)msp; /* 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_RADIO(msp)) printk(" +radio"); printk("\n"); /* startup control thread */ MOD_INC_USE_COUNT; msp->notify = &sem; rc = kernel_thread(msp->simple ? msp3410d_thread : msp3400c_thread, (void *)c, 0); if (rc < 0) printk(KERN_WARNING "msp34xx: kernel_thread() failed\n"); else down(&sem); msp->notify = NULL; wake_up_interruptible(&msp->wq); /* update our own array */ for (i = 0; i < MSP3400_MAX; i++) { if (NULL == msps[i]) { msps[i] = c; break; } } /* done */ i2c_attach_client(c); return 0; } static int msp_detach(struct i2c_client *client) { DECLARE_MUTEX_LOCKED(sem); struct msp3400c *msp = i2c_get_clientdata(client); int i; /* shutdown control thread */ del_timer(&msp->wake_stereo); if (msp->thread) { msp->notify = &sem; msp->rmmod = 1; wake_up_interruptible(&msp->wq); down(&sem); msp->notify = NULL; } msp3400c_reset(client); /* update our own array */ for (i = 0; i < MSP3400_MAX; i++) { if (client == msps[i]) { msps[i] = NULL; break; } } i2c_detach_client(client); kfree(msp); kfree(client); MOD_DEC_USE_COUNT; return 0; } static int msp_probe(struct i2c_adapter *adap) { #ifdef I2C_ADAP_CLASS_TV_ANALOG if (adap->class & I2C_ADAP_CLASS_TV_ANALOG) return i2c_probe(adap, &addr_data, msp_attach); #else if (adap->id == (I2C_ALGO_BIT | I2C_HW_B_BT848)) return i2c_probe(adap, &addr_data, msp_attach); #endif return 0; } static void msp_wake_thread(struct i2c_client *client) { struct msp3400c *msp = i2c_get_clientdata(client); msp3400c_setvolume(client,msp->muted,0,0); msp->watch_stereo=0; del_timer(&msp->wake_stereo); if (msp->active) msp->restart = 1; wake_up_interruptible(&msp->wq); } static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg) { struct msp3400c *msp = i2c_get_clientdata(client); __u16 *sarg = arg; #if 0 int *iarg = (int*)arg; #endif switch (cmd) { case AUDC_SET_INPUT: /* scart switching - IN1 is often used for external input - Hauppauge uses IN2 for the radio */ dprintk(KERN_DEBUG "msp34xx: AUDC_SET_INPUT(%d)\n",*sarg); if (*sarg == msp->input) break; msp->input = *sarg; switch (*sarg) { case AUDIO_RADIO: msp->mode = MSP_MODE_FM_RADIO; msp->stereo = VIDEO_SOUND_STEREO; msp3400c_set_scart(client,SCART_IN2,0); msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900); msp3400c_setstereo(client,msp->stereo); break; case AUDIO_EXTERN: msp->mode = MSP_MODE_EXTERN; msp->stereo = VIDEO_SOUND_STEREO; msp3400c_set_scart(client,SCART_IN1,0); msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900); msp3400c_setstereo(client,msp->stereo); break; case AUDIO_TUNER: msp->mode = -1; msp_wake_thread(client); break; default: if (*sarg & AUDIO_MUTE) msp3400c_set_scart(client,SCART_MUTE,0); break; } if (msp->active) msp->restart = 1; break; case AUDC_SET_RADIO: dprintk(KERN_DEBUG "msp34xx: AUDC_SET_RADIO\n"); msp->norm = VIDEO_MODE_RADIO; msp->watch_stereo=0; del_timer(&msp->wake_stereo); dprintk(KERN_DEBUG "msp34xx: switching to radio mode\n"); if (msp->simple) { /* the thread will do for us */ msp_wake_thread(client); } else { /* 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->left,msp->right); } if (msp->active) msp->restart = 1; break; #if 1 /* work-in-progress: hook to control the DFP registers */ case MSP_SET_DFPREG: { struct msp_dfpreg *r = arg; unsigned int i; if (r->reg < 0 || r->reg >= DFP_COUNT) return -EINVAL; for (i = 0; i < ARRAY_SIZE(bl_dfp); i++) if (r->reg == bl_dfp[i]) return -EINVAL; msp->dfp_regs[r->reg] = r->value; msp3400c_write(client,I2C_MSP3400C_DFP,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 = msp3400c_read(client,I2C_MSP3400C_DFP,r->reg); return 0; } #endif /* --- 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=max(msp->left,msp->right); va->balance=(32768*min(msp->left,msp->right))/ (va->volume ? va->volume : 1); va->balance=(msp->left<msp->right)? (65535-va->balance) : va->balance; if (0 == va->volume) va->balance = 32768; va->bass = msp->bass; va->treble = msp->treble; if (msp->norm != VIDEO_MODE_RADIO) { autodetect_stereo(client); va->mode = msp->stereo; } break; } case VIDIOCSAUDIO: { struct video_audio *va = arg; dprintk(KERN_DEBUG "msp34xx: VIDIOCSAUDIO\n"); msp->muted = (va->flags & VIDEO_AUDIO_MUTE); msp->left = (min(65536 - va->balance,32768) * va->volume) / 32768; msp->right = (min(va->balance,(__u16)32768) * va->volume) / 32768; msp->bass = va->bass; msp->treble = va->treble; msp3400c_setvolume(client,msp->muted,msp->left,msp->right); msp3400c_setbass(client,msp->bass); msp3400c_settreble(client,msp->treble); if (va->mode != 0 && msp->norm != VIDEO_MODE_RADIO) { msp->watch_stereo=0; del_timer(&msp->wake_stereo); msp->stereo = va->mode & 0x0f; msp3400c_setstereo(client,va->mode & 0x0f); } break; } case VIDIOCSCHAN: { struct video_channel *vc = arg; dprintk(KERN_DEBUG "msp34xx: VIDIOCSCHAN\n"); msp->norm = vc->norm; break; } case VIDIOCSFREQ: { /* new channel -- kick audio carrier scan */ dprintk(KERN_DEBUG "msp34xx: VIDIOCSFREQ\n"); msp_wake_thread(client); break; } default: /* nothing */ break; } return 0; } /* ----------------------------------------------------------------------- */ static int msp3400_init_module(void) { i2c_add_driver(&driver); return 0; } static void 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: */
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