#include <linux/module.h> #include <linux/kernel.h> #include <linux/i2c.h> #include <linux/types.h> #include <linux/videodev.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/slab.h> #include <media/audiochip.h> #include <media/id.h> /* Chips: TDA9885 (PAL, NTSC) TDA9886 (PAL, SECAM, NTSC) TDA9887 (PAL, SECAM, NTSC, FM Radio) found on: - Pinnacle PCTV (Jul.2002 Version with MT2032, bttv) TDA9887 (world), TDA9885 (USA) Note: OP2 of tda988x must be set to 1, else MT2032 is disabled! - KNC One TV-Station RDS (saa7134) */ /* Addresses to scan */ static unsigned short normal_i2c[] = {I2C_CLIENT_END}; static unsigned short normal_i2c_range[] = {0x86>>1,0x86>>1,I2C_CLIENT_END}; I2C_CLIENT_INSMOD; /* insmod options */ static int debug = 0; static char *pal = "b"; static char *secam = "l"; MODULE_PARM(debug,"i"); MODULE_PARM(pal,"s"); MODULE_PARM(secam,"s"); MODULE_LICENSE("GPL"); /* ---------------------------------------------------------------------- */ #define dprintk if (debug) printk struct tda9887 { struct i2c_client client; int radio,tvnorm; int pinnacle_id; }; static struct i2c_driver driver; static struct i2c_client client_template; /* ---------------------------------------------------------------------- */ // // TDA defines // //// first reg #define cVideoTrapBypassOFF 0x00 // bit b0 #define cVideoTrapBypassON 0x01 // bit b0 #define cAutoMuteFmInactive 0x00 // bit b1 #define cAutoMuteFmActive 0x02 // bit b1 #define cIntercarrier 0x00 // bit b2 #define cQSS 0x04 // bit b2 #define cPositiveAmTV 0x00 // bit b3:4 #define cFmRadio 0x08 // bit b3:4 #define cNegativeFmTV 0x10 // bit b3:4 #define cForcedMuteAudioON 0x20 // bit b5 #define cForcedMuteAudioOFF 0x00 // bit b5 #define cOutputPort1Active 0x00 // bit b6 #define cOutputPort1Inactive 0x40 // bit b6 #define cOutputPort2Active 0x00 // bit b7 #define cOutputPort2Inactive 0x80 // bit b7 //// second reg #define cDeemphasisOFF 0x00 // bit c5 #define cDeemphasisON 0x20 // bit c5 #define cDeemphasis75 0x00 // bit c6 #define cDeemphasis50 0x40 // bit c6 #define cAudioGain0 0x00 // bit c7 #define cAudioGain6 0x80 // bit c7 //// third reg #define cAudioIF_4_5 0x00 // bit e0:1 #define cAudioIF_5_5 0x01 // bit e0:1 #define cAudioIF_6_0 0x02 // bit e0:1 #define cAudioIF_6_5 0x03 // bit e0:1 #define cVideoIF_58_75 0x00 // bit e2:4 #define cVideoIF_45_75 0x04 // bit e2:4 #define cVideoIF_38_90 0x08 // bit e2:4 #define cVideoIF_38_00 0x0C // bit e2:4 #define cVideoIF_33_90 0x10 // bit e2:4 #define cVideoIF_33_40 0x14 // bit e2:4 #define cRadioIF_45_75 0x18 // bit e2:4 #define cRadioIF_38_90 0x1C // bit e2:4 #define cTunerGainNormal 0x00 // bit e5 #define cTunerGainLow 0x20 // bit e5 #define cGating_18 0x00 // bit e6 #define cGating_36 0x40 // bit e6 #define cAgcOutON 0x80 // bit e7 #define cAgcOutOFF 0x00 // bit e7 static int tda9887_miro(struct tda9887 *t) { int rc; u8 bData[4] = { 0 }; u8 bVideoIF = 0; u8 bAudioIF = 0; u8 bDeEmphasis = 0; u8 bDeEmphVal = 0; u8 bModulation = 0; u8 bCarrierMode = 0; u8 bOutPort1 = cOutputPort1Inactive; #if 0 u8 bOutPort2 = cOutputPort2Inactive & mbTADState; // store i2c tuner state #else u8 bOutPort2 = cOutputPort2Inactive; #endif u8 bVideoTrap = cVideoTrapBypassOFF; #if 1 u8 bTopAdjust = 0x0e /* -2dB */; #else u8 bTopAdjust = 0; #endif #if 0 if (mParams.fVideoTrap) bVideoTrap = cVideoTrapBypassON; #endif if (t->radio) { bVideoTrap = cVideoTrapBypassOFF; bCarrierMode = cQSS; bModulation = cFmRadio; bOutPort1 = cOutputPort1Inactive; bDeEmphasis = cDeemphasisON; if (3 == t->pinnacle_id) { /* ntsc */ bDeEmphVal = cDeemphasis75; bAudioIF = cAudioIF_4_5; bVideoIF = cRadioIF_45_75; } else { /* pal */ bAudioIF = cAudioIF_5_5; bVideoIF = cRadioIF_38_90; bDeEmphVal = cDeemphasis50; } } else if (t->tvnorm == VIDEO_MODE_PAL) { bDeEmphasis = cDeemphasisON; bDeEmphVal = cDeemphasis50; bModulation = cNegativeFmTV; bOutPort1 = cOutputPort1Inactive; if (1 == t->pinnacle_id) { bCarrierMode = cIntercarrier; } else { // stereo boards bCarrierMode = cQSS; } switch (pal[0]) { case 'b': case 'g': case 'h': bVideoIF = cVideoIF_38_90; bAudioIF = cAudioIF_5_5; break; case 'd': bVideoIF = cVideoIF_38_00; bAudioIF = cAudioIF_6_5; break; case 'i': bVideoIF = cVideoIF_38_90; bAudioIF = cAudioIF_6_0; break; case 'm': case 'n': bVideoIF = cVideoIF_45_75; bAudioIF = cAudioIF_4_5; bDeEmphVal = cDeemphasis75; if ((5 == t->pinnacle_id) || (6 == t->pinnacle_id)) { bCarrierMode = cIntercarrier; } else { bCarrierMode = cQSS; } break; } } else if (t->tvnorm == VIDEO_MODE_SECAM) { bAudioIF = cAudioIF_6_5; bDeEmphasis = cDeemphasisON; bDeEmphVal = cDeemphasis50; bModulation = cNegativeFmTV; bCarrierMode = cQSS; bOutPort1 = cOutputPort1Inactive; switch (secam[0]) { case 'd': bVideoIF = cVideoIF_38_00; break; case 'k': bVideoIF = cVideoIF_38_90; break; case 'l': bVideoIF = cVideoIF_38_90; bDeEmphasis = cDeemphasisOFF; bDeEmphVal = cDeemphasis75; bModulation = cPositiveAmTV; break; case 'L' /* L1 */: bVideoIF = cVideoIF_33_90; bDeEmphasis = cDeemphasisOFF; bDeEmphVal = cDeemphasis75; bModulation = cPositiveAmTV; break; } } else if (t->tvnorm == VIDEO_MODE_NTSC) { bVideoIF = cVideoIF_45_75; bAudioIF = cAudioIF_4_5; bDeEmphasis = cDeemphasisON; bDeEmphVal = cDeemphasis75; bModulation = cNegativeFmTV; bOutPort1 = cOutputPort1Inactive; if ((5 == t->pinnacle_id) || (6 == t->pinnacle_id)) { bCarrierMode = cIntercarrier; } else { bCarrierMode = cQSS; } } bData[1] = bVideoTrap | // B0: video trap bypass cAutoMuteFmInactive | // B1: auto mute bCarrierMode | // B2: InterCarrier for PAL else QSS bModulation | // B3 - B4: positive AM TV for SECAM only cForcedMuteAudioOFF | // B5: forced Audio Mute (off) bOutPort1 | // B6: Out Port 1 bOutPort2; // B7: Out Port 2 bData[2] = bTopAdjust | // C0 - C4: Top Adjust 0 == -16dB 31 == 15dB bDeEmphasis | // C5: De-emphasis on/off bDeEmphVal | // C6: De-emphasis 50/75 microsec cAudioGain0; // C7: normal audio gain bData[3] = bAudioIF | // E0 - E1: Sound IF bVideoIF | // E2 - E4: Video IF cTunerGainNormal | // E5: Tuner gain (normal) cGating_18 | // E6: Gating (18%) cAgcOutOFF; // E7: VAGC (off) dprintk("tda9885/6/7: 0x%02x 0x%02x 0x%02x [pinnacle_id=%d]\n", bData[1],bData[2],bData[3],t->pinnacle_id); if (4 != (rc = i2c_master_send(&t->client,bData,4))) printk("tda9885/6/7: i2c i/o error: rc == %d (should be 4)\n",rc); return 0; } /* ---------------------------------------------------------------------- */ #if 0 /* just for reference: old knc-one saa7134 stuff */ static unsigned char buf_pal_bg[] = { 0x00, 0x16, 0x70, 0x49 }; static unsigned char buf_pal_i[] = { 0x00, 0x16, 0x70, 0x4a }; static unsigned char buf_pal_dk[] = { 0x00, 0x16, 0x70, 0x4b }; static unsigned char buf_pal_l[] = { 0x00, 0x06, 0x50, 0x4b }; static unsigned char buf_fm_stereo[] = { 0x00, 0x0e, 0x0d, 0x77 }; #endif static unsigned char buf_pal_bg[] = { 0x00, 0x96, 0x70, 0x49 }; static unsigned char buf_pal_i[] = { 0x00, 0x96, 0x70, 0x4a }; static unsigned char buf_pal_dk[] = { 0x00, 0x96, 0x70, 0x4b }; static unsigned char buf_pal_l[] = { 0x00, 0x86, 0x50, 0x4b }; static unsigned char buf_fm_stereo[] = { 0x00, 0x8e, 0x0d, 0x77 }; static unsigned char buf_ntsc[] = { 0x00, 0x96, 0x70, 0x44 }; static unsigned char buf_ntsc_jp[] = { 0x00, 0x96, 0x70, 0x40 }; static int tda9887_configure(struct tda9887 *t) { unsigned char *buf = NULL; int rc; printk("tda9887_configure\n"); if (t->radio) { dprintk("tda9885/6/7: FM Radio mode\n"); buf = buf_fm_stereo; } else if (t->tvnorm == VIDEO_MODE_PAL) { dprintk("tda9885/6/7: PAL-%c mode\n",pal[0]); switch (pal[0]) { case 'b': case 'g': buf = buf_pal_bg; break; case 'i': buf = buf_pal_i; break; case 'd': case 'k': buf = buf_pal_dk; break; case 'l': buf = buf_pal_l; break; } } else if (t->tvnorm == VIDEO_MODE_NTSC) { dprintk("tda9885/6/7: NTSC mode\n"); buf = buf_ntsc; } else if (t->tvnorm == VIDEO_MODE_SECAM) { dprintk("tda9885/6/7: SECAM mode\n"); buf = buf_pal_l; } else if (t->tvnorm == 6 /* BTTV hack */) { dprintk("tda9885/6/7: NTSC-Japan mode\n"); buf = buf_ntsc_jp; } if (NULL == buf) { printk("tda9885/6/7 unknown norm=%d\n",t->tvnorm); return 0; } dprintk("tda9885/6/7: 0x%02x 0x%02x 0x%02x\n", buf[1],buf[2],buf[3]); if (4 != (rc = i2c_master_send(&t->client,buf,4))) printk("tda9885/6/7: i2c i/o error: rc == %d (should be 4)\n",rc); return 0; } /* ---------------------------------------------------------------------- */ static int tda9887_attach(struct i2c_adapter *adap, int addr, int kind) { struct tda9887 *t; client_template.adapter = adap; client_template.addr = addr; printk("tda9887: chip found @ 0x%x\n", addr<<1); if (NULL == (t = kmalloc(sizeof(*t), GFP_KERNEL))) return -ENOMEM; memset(t,0,sizeof(*t)); t->client = client_template; i2c_set_clientdata(&t->client, t); t->pinnacle_id = -1; i2c_attach_client(&t->client); MOD_INC_USE_COUNT; return 0; } static int tda9887_probe(struct i2c_adapter *adap) { int rc; switch (adap->id) { case I2C_ALGO_BIT | I2C_HW_B_BT848: case I2C_ALGO_BIT | I2C_HW_B_RIVA: case I2C_ALGO_SAA7134: printk("tda9887: probing %s i2c adapter [id=0x%x]\n", adap->dev.name,adap->id); rc = i2c_probe(adap, &addr_data, tda9887_attach); break; default: printk("tda9887: ignoring %s i2c adapter [id=0x%x]\n", adap->dev.name,adap->id); rc = 0; /* nothing */ } return rc; } static int tda9887_detach(struct i2c_client *client) { struct tda9887 *t = i2c_get_clientdata(client); i2c_detach_client(client); kfree(t); MOD_DEC_USE_COUNT; return 0; } static int tda9887_command(struct i2c_client *client, unsigned int cmd, void *arg) { struct tda9887 *t = i2c_get_clientdata(client); switch (cmd) { /* --- configuration --- */ case AUDC_SET_RADIO: t->radio = 1; if (-1 != t->pinnacle_id) tda9887_miro(t); else tda9887_configure(t); break; case AUDC_CONFIG_PINNACLE: { int *i = arg; t->pinnacle_id = *i; break; } /* --- v4l ioctls --- */ /* take care: bttv does userspace copying, we'll get a kernel pointer here... */ case VIDIOCSCHAN: { struct video_channel *vc = arg; t->radio = 0; t->tvnorm = vc->norm; if (-1 != t->pinnacle_id) tda9887_miro(t); else tda9887_configure(t); break; } default: /* nothing */ break; } return 0; } /* ----------------------------------------------------------------------- */ static struct i2c_driver driver = { .owner = THIS_MODULE, .name = "i2c tda9887 driver", .id = -1, /* FIXME */ .flags = I2C_DF_NOTIFY, .attach_adapter = tda9887_probe, .detach_client = tda9887_detach, .command = tda9887_command, }; static struct i2c_client client_template = { .flags = I2C_CLIENT_ALLOW_USE, .driver = &driver, .dev = { .name = "tda9887", }, }; static int tda9887_init_module(void) { i2c_add_driver(&driver); return 0; } static void tda9887_cleanup_module(void) { i2c_del_driver(&driver); } module_init(tda9887_init_module); module_exit(tda9887_cleanup_module); /* * Overrides for Emacs so that we follow Linus's tabbing style. * --------------------------------------------------------------------------- * Local variables: * c-basic-offset: 8 * End: */