| #include <linux/module.h> |
| #include <linux/moduleparam.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 <linux/delay.h> |
| |
| #include <media/v4l2-common.h> |
| #include <media/tuner.h> |
| |
| |
| /* Chips: |
| TDA9885 (PAL, NTSC) |
| TDA9886 (PAL, SECAM, NTSC) |
| TDA9887 (PAL, SECAM, NTSC, FM Radio) |
| |
| Used as part of several tuners |
| */ |
| |
| #define tda9887_info(fmt, arg...) do {\ |
| printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.name, \ |
| i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) |
| #define tda9887_dbg(fmt, arg...) do {\ |
| if (tuner_debug) \ |
| printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.name, \ |
| i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) |
| |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| #define UNSET (-1U) |
| |
| struct tvnorm { |
| v4l2_std_id std; |
| char *name; |
| unsigned char b; |
| unsigned char c; |
| unsigned char e; |
| }; |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| // |
| // TDA defines |
| // |
| |
| //// first reg (b) |
| #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 (c) |
| #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 |
| |
| #define cTopMask 0x1f // bit c0:4 |
| #define cTopPalSecamDefault 0x14 // bit c0:4 |
| #define cTopNtscRadioDefault 0x10 // bit c0:4 |
| |
| //// third reg (e) |
| #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 struct tvnorm tvnorms[] = { |
| { |
| .std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H | V4L2_STD_PAL_N, |
| .name = "PAL-BGHN", |
| .b = ( cNegativeFmTV | |
| cQSS ), |
| .c = ( cDeemphasisON | |
| cDeemphasis50 | |
| cTopPalSecamDefault), |
| .e = ( cGating_36 | |
| cAudioIF_5_5 | |
| cVideoIF_38_90 ), |
| },{ |
| .std = V4L2_STD_PAL_I, |
| .name = "PAL-I", |
| .b = ( cNegativeFmTV | |
| cQSS ), |
| .c = ( cDeemphasisON | |
| cDeemphasis50 | |
| cTopPalSecamDefault), |
| .e = ( cGating_36 | |
| cAudioIF_6_0 | |
| cVideoIF_38_90 ), |
| },{ |
| .std = V4L2_STD_PAL_DK, |
| .name = "PAL-DK", |
| .b = ( cNegativeFmTV | |
| cQSS ), |
| .c = ( cDeemphasisON | |
| cDeemphasis50 | |
| cTopPalSecamDefault), |
| .e = ( cGating_36 | |
| cAudioIF_6_5 | |
| cVideoIF_38_90 ), |
| },{ |
| .std = V4L2_STD_PAL_M | V4L2_STD_PAL_Nc, |
| .name = "PAL-M/Nc", |
| .b = ( cNegativeFmTV | |
| cQSS ), |
| .c = ( cDeemphasisON | |
| cDeemphasis75 | |
| cTopNtscRadioDefault), |
| .e = ( cGating_36 | |
| cAudioIF_4_5 | |
| cVideoIF_45_75 ), |
| },{ |
| .std = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, |
| .name = "SECAM-BGH", |
| .b = ( cPositiveAmTV | |
| cQSS ), |
| .c = ( cTopPalSecamDefault), |
| .e = ( cGating_36 | |
| cAudioIF_5_5 | |
| cVideoIF_38_90 ), |
| },{ |
| .std = V4L2_STD_SECAM_L, |
| .name = "SECAM-L", |
| .b = ( cPositiveAmTV | |
| cQSS ), |
| .c = ( cTopPalSecamDefault), |
| .e = ( cGating_36 | |
| cAudioIF_6_5 | |
| cVideoIF_38_90 ), |
| },{ |
| .std = V4L2_STD_SECAM_LC, |
| .name = "SECAM-L'", |
| .b = ( cOutputPort2Inactive | |
| cPositiveAmTV | |
| cQSS ), |
| .c = ( cTopPalSecamDefault), |
| .e = ( cGating_36 | |
| cAudioIF_6_5 | |
| cVideoIF_33_90 ), |
| },{ |
| .std = V4L2_STD_SECAM_DK, |
| .name = "SECAM-DK", |
| .b = ( cNegativeFmTV | |
| cQSS ), |
| .c = ( cDeemphasisON | |
| cDeemphasis50 | |
| cTopPalSecamDefault), |
| .e = ( cGating_36 | |
| cAudioIF_6_5 | |
| cVideoIF_38_90 ), |
| },{ |
| .std = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, |
| .name = "NTSC-M", |
| .b = ( cNegativeFmTV | |
| cQSS ), |
| .c = ( cDeemphasisON | |
| cDeemphasis75 | |
| cTopNtscRadioDefault), |
| .e = ( cGating_36 | |
| cAudioIF_4_5 | |
| cVideoIF_45_75 ), |
| },{ |
| .std = V4L2_STD_NTSC_M_JP, |
| .name = "NTSC-M-JP", |
| .b = ( cNegativeFmTV | |
| cQSS ), |
| .c = ( cDeemphasisON | |
| cDeemphasis50 | |
| cTopNtscRadioDefault), |
| .e = ( cGating_36 | |
| cAudioIF_4_5 | |
| cVideoIF_58_75 ), |
| } |
| }; |
| |
| static struct tvnorm radio_stereo = { |
| .name = "Radio Stereo", |
| .b = ( cFmRadio | |
| cQSS ), |
| .c = ( cDeemphasisOFF | |
| cAudioGain6 | |
| cTopNtscRadioDefault), |
| .e = ( cTunerGainLow | |
| cAudioIF_5_5 | |
| cRadioIF_38_90 ), |
| }; |
| |
| static struct tvnorm radio_mono = { |
| .name = "Radio Mono", |
| .b = ( cFmRadio | |
| cQSS ), |
| .c = ( cDeemphasisON | |
| cDeemphasis75 | |
| cTopNtscRadioDefault), |
| .e = ( cTunerGainLow | |
| cAudioIF_5_5 | |
| cRadioIF_38_90 ), |
| }; |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| static void dump_read_message(struct tuner *t, unsigned char *buf) |
| { |
| static char *afc[16] = { |
| "- 12.5 kHz", |
| "- 37.5 kHz", |
| "- 62.5 kHz", |
| "- 87.5 kHz", |
| "-112.5 kHz", |
| "-137.5 kHz", |
| "-162.5 kHz", |
| "-187.5 kHz [min]", |
| "+187.5 kHz [max]", |
| "+162.5 kHz", |
| "+137.5 kHz", |
| "+112.5 kHz", |
| "+ 87.5 kHz", |
| "+ 62.5 kHz", |
| "+ 37.5 kHz", |
| "+ 12.5 kHz", |
| }; |
| tda9887_info("read: 0x%2x\n", buf[0]); |
| tda9887_info(" after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no"); |
| tda9887_info(" afc : %s\n", afc[(buf[0] >> 1) & 0x0f]); |
| tda9887_info(" fmif level : %s\n", (buf[0] & 0x20) ? "high" : "low"); |
| tda9887_info(" afc window : %s\n", (buf[0] & 0x40) ? "in" : "out"); |
| tda9887_info(" vfi level : %s\n", (buf[0] & 0x80) ? "high" : "low"); |
| } |
| |
| static void dump_write_message(struct tuner *t, unsigned char *buf) |
| { |
| static char *sound[4] = { |
| "AM/TV", |
| "FM/radio", |
| "FM/TV", |
| "FM/radio" |
| }; |
| static char *adjust[32] = { |
| "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9", |
| "-8", "-7", "-6", "-5", "-4", "-3", "-2", "-1", |
| "0", "+1", "+2", "+3", "+4", "+5", "+6", "+7", |
| "+8", "+9", "+10", "+11", "+12", "+13", "+14", "+15" |
| }; |
| static char *deemph[4] = { |
| "no", "no", "75", "50" |
| }; |
| static char *carrier[4] = { |
| "4.5 MHz", |
| "5.5 MHz", |
| "6.0 MHz", |
| "6.5 MHz / AM" |
| }; |
| static char *vif[8] = { |
| "58.75 MHz", |
| "45.75 MHz", |
| "38.9 MHz", |
| "38.0 MHz", |
| "33.9 MHz", |
| "33.4 MHz", |
| "45.75 MHz + pin13", |
| "38.9 MHz + pin13", |
| }; |
| static char *rif[4] = { |
| "44 MHz", |
| "52 MHz", |
| "52 MHz", |
| "44 MHz", |
| }; |
| |
| tda9887_info("write: byte B 0x%02x\n",buf[1]); |
| tda9887_info(" B0 video mode : %s\n", |
| (buf[1] & 0x01) ? "video trap" : "sound trap"); |
| tda9887_info(" B1 auto mute fm : %s\n", |
| (buf[1] & 0x02) ? "yes" : "no"); |
| tda9887_info(" B2 carrier mode : %s\n", |
| (buf[1] & 0x04) ? "QSS" : "Intercarrier"); |
| tda9887_info(" B3-4 tv sound/radio : %s\n", |
| sound[(buf[1] & 0x18) >> 3]); |
| tda9887_info(" B5 force mute audio: %s\n", |
| (buf[1] & 0x20) ? "yes" : "no"); |
| tda9887_info(" B6 output port 1 : %s\n", |
| (buf[1] & 0x40) ? "high (inactive)" : "low (active)"); |
| tda9887_info(" B7 output port 2 : %s\n", |
| (buf[1] & 0x80) ? "high (inactive)" : "low (active)"); |
| |
| tda9887_info("write: byte C 0x%02x\n",buf[2]); |
| tda9887_info(" C0-4 top adjustment : %s dB\n", adjust[buf[2] & 0x1f]); |
| tda9887_info(" C5-6 de-emphasis : %s\n", deemph[(buf[2] & 0x60) >> 5]); |
| tda9887_info(" C7 audio gain : %s\n", |
| (buf[2] & 0x80) ? "-6" : "0"); |
| |
| tda9887_info("write: byte E 0x%02x\n",buf[3]); |
| tda9887_info(" E0-1 sound carrier : %s\n", |
| carrier[(buf[3] & 0x03)]); |
| tda9887_info(" E6 l pll gating : %s\n", |
| (buf[3] & 0x40) ? "36" : "13"); |
| |
| if (buf[1] & 0x08) { |
| /* radio */ |
| tda9887_info(" E2-4 video if : %s\n", |
| rif[(buf[3] & 0x0c) >> 2]); |
| tda9887_info(" E7 vif agc output : %s\n", |
| (buf[3] & 0x80) |
| ? ((buf[3] & 0x10) ? "fm-agc radio" : "sif-agc radio") |
| : "fm radio carrier afc"); |
| } else { |
| /* video */ |
| tda9887_info(" E2-4 video if : %s\n", |
| vif[(buf[3] & 0x1c) >> 2]); |
| tda9887_info(" E5 tuner gain : %s\n", |
| (buf[3] & 0x80) |
| ? ((buf[3] & 0x20) ? "external" : "normal") |
| : ((buf[3] & 0x20) ? "minimum" : "normal")); |
| tda9887_info(" E7 vif agc output : %s\n", |
| (buf[3] & 0x80) |
| ? ((buf[3] & 0x20) |
| ? "pin3 port, pin22 vif agc out" |
| : "pin22 port, pin3 vif acg ext in") |
| : "pin3+pin22 port"); |
| } |
| tda9887_info("--\n"); |
| } |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| static int tda9887_set_tvnorm(struct tuner *t, char *buf) |
| { |
| struct tvnorm *norm = NULL; |
| int i; |
| |
| if (t->mode == V4L2_TUNER_RADIO) { |
| if (t->audmode == V4L2_TUNER_MODE_MONO) |
| norm = &radio_mono; |
| else |
| norm = &radio_stereo; |
| } else { |
| for (i = 0; i < ARRAY_SIZE(tvnorms); i++) { |
| if (tvnorms[i].std & t->std) { |
| norm = tvnorms+i; |
| break; |
| } |
| } |
| } |
| if (NULL == norm) { |
| tda9887_dbg("Unsupported tvnorm entry - audio muted\n"); |
| return -1; |
| } |
| |
| tda9887_dbg("configure for: %s\n",norm->name); |
| buf[1] = norm->b; |
| buf[2] = norm->c; |
| buf[3] = norm->e; |
| return 0; |
| } |
| |
| static unsigned int port1 = UNSET; |
| static unsigned int port2 = UNSET; |
| static unsigned int qss = UNSET; |
| static unsigned int adjust = UNSET; |
| |
| module_param(port1, int, 0644); |
| module_param(port2, int, 0644); |
| module_param(qss, int, 0644); |
| module_param(adjust, int, 0644); |
| |
| static int tda9887_set_insmod(struct tuner *t, char *buf) |
| { |
| if (UNSET != port1) { |
| if (port1) |
| buf[1] |= cOutputPort1Inactive; |
| else |
| buf[1] &= ~cOutputPort1Inactive; |
| } |
| if (UNSET != port2) { |
| if (port2) |
| buf[1] |= cOutputPort2Inactive; |
| else |
| buf[1] &= ~cOutputPort2Inactive; |
| } |
| |
| if (UNSET != qss) { |
| if (qss) |
| buf[1] |= cQSS; |
| else |
| buf[1] &= ~cQSS; |
| } |
| |
| if (adjust >= 0x00 && adjust < 0x20) { |
| buf[2] &= ~cTopMask; |
| buf[2] |= adjust; |
| } |
| return 0; |
| } |
| |
| static int tda9887_set_config(struct tuner *t, char *buf) |
| { |
| if (t->tda9887_config & TDA9887_PORT1_ACTIVE) |
| buf[1] &= ~cOutputPort1Inactive; |
| if (t->tda9887_config & TDA9887_PORT1_INACTIVE) |
| buf[1] |= cOutputPort1Inactive; |
| if (t->tda9887_config & TDA9887_PORT2_ACTIVE) |
| buf[1] &= ~cOutputPort2Inactive; |
| if (t->tda9887_config & TDA9887_PORT2_INACTIVE) |
| buf[1] |= cOutputPort2Inactive; |
| |
| if (t->tda9887_config & TDA9887_QSS) |
| buf[1] |= cQSS; |
| if (t->tda9887_config & TDA9887_INTERCARRIER) |
| buf[1] &= ~cQSS; |
| |
| if (t->tda9887_config & TDA9887_AUTOMUTE) |
| buf[1] |= cAutoMuteFmActive; |
| if (t->tda9887_config & TDA9887_DEEMPHASIS_MASK) { |
| buf[2] &= ~0x60; |
| switch (t->tda9887_config & TDA9887_DEEMPHASIS_MASK) { |
| case TDA9887_DEEMPHASIS_NONE: |
| buf[2] |= cDeemphasisOFF; |
| break; |
| case TDA9887_DEEMPHASIS_50: |
| buf[2] |= cDeemphasisON | cDeemphasis50; |
| break; |
| case TDA9887_DEEMPHASIS_75: |
| buf[2] |= cDeemphasisON | cDeemphasis75; |
| break; |
| } |
| } |
| if (t->tda9887_config & TDA9887_TOP_SET) { |
| buf[2] &= ~cTopMask; |
| buf[2] |= (t->tda9887_config >> 8) & cTopMask; |
| } |
| if ((t->tda9887_config & TDA9887_INTERCARRIER_NTSC) && (t->std & V4L2_STD_NTSC)) |
| buf[1] &= ~cQSS; |
| return 0; |
| } |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| static int tda9887_status(struct tuner *t) |
| { |
| unsigned char buf[1]; |
| int rc; |
| |
| memset(buf,0,sizeof(buf)); |
| if (1 != (rc = i2c_master_recv(&t->i2c,buf,1))) |
| tda9887_info("i2c i/o error: rc == %d (should be 1)\n",rc); |
| dump_read_message(t, buf); |
| return 0; |
| } |
| |
| static void tda9887_configure(struct i2c_client *client) |
| { |
| struct tuner *t = i2c_get_clientdata(client); |
| int rc; |
| |
| memset(t->tda9887_data,0,sizeof(t->tda9887_data)); |
| tda9887_set_tvnorm(t,t->tda9887_data); |
| |
| /* A note on the port settings: |
| These settings tend to depend on the specifics of the board. |
| By default they are set to inactive (bit value 1) by this driver, |
| overwriting any changes made by the tvnorm. This means that it |
| is the responsibility of the module using the tda9887 to set |
| these values in case of changes in the tvnorm. |
| In many cases port 2 should be made active (0) when selecting |
| SECAM-L, and port 2 should remain inactive (1) for SECAM-L'. |
| |
| For the other standards the tda9887 application note says that |
| the ports should be set to active (0), but, again, that may |
| differ depending on the precise hardware configuration. |
| */ |
| t->tda9887_data[1] |= cOutputPort1Inactive; |
| t->tda9887_data[1] |= cOutputPort2Inactive; |
| |
| tda9887_set_config(t,t->tda9887_data); |
| tda9887_set_insmod(t,t->tda9887_data); |
| |
| if (t->mode == T_STANDBY) { |
| t->tda9887_data[1] |= cForcedMuteAudioON; |
| } |
| |
| tda9887_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n", |
| t->tda9887_data[1],t->tda9887_data[2],t->tda9887_data[3]); |
| if (tuner_debug > 1) |
| dump_write_message(t, t->tda9887_data); |
| |
| if (4 != (rc = i2c_master_send(&t->i2c,t->tda9887_data,4))) |
| tda9887_info("i2c i/o error: rc == %d (should be 4)\n",rc); |
| |
| if (tuner_debug > 2) { |
| msleep_interruptible(1000); |
| tda9887_status(t); |
| } |
| } |
| |
| /* ---------------------------------------------------------------------- */ |
| |
| static void tda9887_tuner_status(struct i2c_client *client) |
| { |
| struct tuner *t = i2c_get_clientdata(client); |
| tda9887_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n", t->tda9887_data[1], t->tda9887_data[2], t->tda9887_data[3]); |
| } |
| |
| static int tda9887_get_afc(struct i2c_client *client) |
| { |
| struct tuner *t = i2c_get_clientdata(client); |
| static int AFC_BITS_2_kHz[] = { |
| -12500, -37500, -62500, -97500, |
| -112500, -137500, -162500, -187500, |
| 187500, 162500, 137500, 112500, |
| 97500 , 62500, 37500 , 12500 |
| }; |
| int afc=0; |
| __u8 reg = 0; |
| |
| if (1 == i2c_master_recv(&t->i2c,®,1)) |
| afc = AFC_BITS_2_kHz[(reg>>1)&0x0f]; |
| |
| return afc; |
| } |
| |
| static void tda9887_standby(struct i2c_client *client) |
| { |
| tda9887_configure(client); |
| } |
| |
| static void tda9887_set_freq(struct i2c_client *client, unsigned int freq) |
| { |
| tda9887_configure(client); |
| } |
| |
| int tda9887_tuner_init(struct i2c_client *c) |
| { |
| struct tuner *t = i2c_get_clientdata(c); |
| |
| strlcpy(c->name, "tda9887", sizeof(c->name)); |
| |
| tda9887_info("tda988[5/6/7] found @ 0x%x (%s)\n", t->i2c.addr, |
| t->i2c.driver->driver.name); |
| |
| t->set_tv_freq = tda9887_set_freq; |
| t->set_radio_freq = tda9887_set_freq; |
| t->standby = tda9887_standby; |
| t->tuner_status=tda9887_tuner_status; |
| t->get_afc=tda9887_get_afc; |
| |
| return 0; |
| } |
| |
| /* |
| * Overrides for Emacs so that we follow Linus's tabbing style. |
| * --------------------------------------------------------------------------- |
| * Local variables: |
| * c-basic-offset: 8 |
| * End: |
| */ |