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path: root/drivers/media/video/tuner-simple.c
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-rw-r--r--drivers/media/video/tuner-simple.c474
1 files changed, 474 insertions, 0 deletions
diff --git a/drivers/media/video/tuner-simple.c b/drivers/media/video/tuner-simple.c
new file mode 100644
index 000000000000..48c6ceff1dc2
--- /dev/null
+++ b/drivers/media/video/tuner-simple.c
@@ -0,0 +1,474 @@
+/*
+ * $Id: tuner-simple.c,v 1.10 2005/03/08 08:38:00 kraxel Exp $
+ *
+ * i2c tv tuner chip device driver
+ * controls all those simple 4-control-bytes style tuners.
+ */
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/videodev.h>
+#include <media/tuner.h>
+
+/* ---------------------------------------------------------------------- */
+
+/* tv standard selection for Temic 4046 FM5
+ this value takes the low bits of control byte 2
+ from datasheet Rev.01, Feb.00
+ standard BG I L L2 D
+ picture IF 38.9 38.9 38.9 33.95 38.9
+ sound 1 33.4 32.9 32.4 40.45 32.4
+ sound 2 33.16
+ NICAM 33.05 32.348 33.05 33.05
+ */
+#define TEMIC_SET_PAL_I 0x05
+#define TEMIC_SET_PAL_DK 0x09
+#define TEMIC_SET_PAL_L 0x0a // SECAM ?
+#define TEMIC_SET_PAL_L2 0x0b // change IF !
+#define TEMIC_SET_PAL_BG 0x0c
+
+/* tv tuner system standard selection for Philips FQ1216ME
+ this value takes the low bits of control byte 2
+ from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
+ standard BG DK I L L`
+ picture carrier 38.90 38.90 38.90 38.90 33.95
+ colour 34.47 34.47 34.47 34.47 38.38
+ sound 1 33.40 32.40 32.90 32.40 40.45
+ sound 2 33.16 - - - -
+ NICAM 33.05 33.05 32.35 33.05 39.80
+ */
+#define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
+#define PHILIPS_SET_PAL_BGDK 0x09
+#define PHILIPS_SET_PAL_L2 0x0a
+#define PHILIPS_SET_PAL_L 0x0b
+
+/* system switching for Philips FI1216MF MK2
+ from datasheet "1996 Jul 09",
+ standard BG L L'
+ picture carrier 38.90 38.90 33.95
+ colour 34.47 34.37 38.38
+ sound 1 33.40 32.40 40.45
+ sound 2 33.16 - -
+ NICAM 33.05 33.05 39.80
+ */
+#define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
+#define PHILIPS_MF_SET_PAL_L 0x03 // France
+#define PHILIPS_MF_SET_PAL_L2 0x02 // L'
+
+
+/* ---------------------------------------------------------------------- */
+
+struct tunertype
+{
+ char *name;
+ unsigned char Vendor;
+ unsigned char Type;
+
+ unsigned short thresh1; /* band switch VHF_LO <=> VHF_HI */
+ unsigned short thresh2; /* band switch VHF_HI <=> UHF */
+ unsigned char VHF_L;
+ unsigned char VHF_H;
+ unsigned char UHF;
+ unsigned char config;
+ unsigned short IFPCoff; /* 622.4=16*38.90 MHz PAL,
+ 732 =16*45.75 NTSCi,
+ 940 =16*58.75 NTSC-Japan
+ 704 =16*44 ATSC */
+};
+
+/*
+ * The floats in the tuner struct are computed at compile time
+ * by gcc and cast back to integers. Thus we don't violate the
+ * "no float in kernel" rule.
+ */
+static struct tunertype tuners[] = {
+ { "Temic PAL (4002 FH5)", TEMIC, PAL,
+ 16*140.25,16*463.25,0x02,0x04,0x01,0x8e,623},
+ { "Philips PAL_I (FI1246 and compatibles)", Philips, PAL_I,
+ 16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
+ { "Philips NTSC (FI1236,FM1236 and compatibles)", Philips, NTSC,
+ 16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732},
+ { "Philips (SECAM+PAL_BG) (FI1216MF, FM1216MF, FR1216MF)", Philips, SECAM,
+ 16*168.25,16*447.25,0xA7,0x97,0x37,0x8e,623},
+
+ { "NoTuner", NoTuner, NOTUNER,
+ 0,0,0x00,0x00,0x00,0x00,0x00},
+ { "Philips PAL_BG (FI1216 and compatibles)", Philips, PAL,
+ 16*168.25,16*447.25,0xA0,0x90,0x30,0x8e,623},
+ { "Temic NTSC (4032 FY5)", TEMIC, NTSC,
+ 16*157.25,16*463.25,0x02,0x04,0x01,0x8e,732},
+ { "Temic PAL_I (4062 FY5)", TEMIC, PAL_I,
+ 16*170.00,16*450.00,0x02,0x04,0x01,0x8e,623},
+
+ { "Temic NTSC (4036 FY5)", TEMIC, NTSC,
+ 16*157.25,16*463.25,0xa0,0x90,0x30,0x8e,732},
+ { "Alps HSBH1", TEMIC, NTSC,
+ 16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
+ { "Alps TSBE1",TEMIC,PAL,
+ 16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
+ { "Alps TSBB5", Alps, PAL_I, /* tested (UK UHF) with Modulartech MM205 */
+ 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,632},
+
+ { "Alps TSBE5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
+ 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,622},
+ { "Alps TSBC5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
+ 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,608},
+ { "Temic PAL_BG (4006FH5)", TEMIC, PAL,
+ 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
+ { "Alps TSCH6",Alps,NTSC,
+ 16*137.25,16*385.25,0x14,0x12,0x11,0x8e,732},
+
+ { "Temic PAL_DK (4016 FY5)",TEMIC,PAL,
+ 16*168.25,16*456.25,0xa0,0x90,0x30,0x8e,623},
+ { "Philips NTSC_M (MK2)",Philips,NTSC,
+ 16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
+ { "Temic PAL_I (4066 FY5)", TEMIC, PAL_I,
+ 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
+ { "Temic PAL* auto (4006 FN5)", TEMIC, PAL,
+ 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
+
+ { "Temic PAL_BG (4009 FR5) or PAL_I (4069 FR5)", TEMIC, PAL,
+ 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
+ { "Temic NTSC (4039 FR5)", TEMIC, NTSC,
+ 16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
+ { "Temic PAL/SECAM multi (4046 FM5)", TEMIC, PAL,
+ 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
+ { "Philips PAL_DK (FI1256 and compatibles)", Philips, PAL,
+ 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
+
+ { "Philips PAL/SECAM multi (FQ1216ME)", Philips, PAL,
+ 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
+ { "LG PAL_I+FM (TAPC-I001D)", LGINNOTEK, PAL_I,
+ 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
+ { "LG PAL_I (TAPC-I701D)", LGINNOTEK, PAL_I,
+ 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
+ { "LG NTSC+FM (TPI8NSR01F)", LGINNOTEK, NTSC,
+ 16*210.00,16*497.00,0xa0,0x90,0x30,0x8e,732},
+
+ { "LG PAL_BG+FM (TPI8PSB01D)", LGINNOTEK, PAL,
+ 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
+ { "LG PAL_BG (TPI8PSB11D)", LGINNOTEK, PAL,
+ 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
+ { "Temic PAL* auto + FM (4009 FN5)", TEMIC, PAL,
+ 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
+ { "SHARP NTSC_JP (2U5JF5540)", SHARP, NTSC, /* 940=16*58.75 NTSC@Japan */
+ 16*137.25,16*317.25,0x01,0x02,0x08,0x8e,940 },
+
+ { "Samsung PAL TCPM9091PD27", Samsung, PAL, /* from sourceforge v3tv */
+ 16*169,16*464,0xA0,0x90,0x30,0x8e,623},
+ { "MT20xx universal", Microtune,PAL|NTSC,
+ /* see mt20xx.c for details */ },
+ { "Temic PAL_BG (4106 FH5)", TEMIC, PAL,
+ 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
+ { "Temic PAL_DK/SECAM_L (4012 FY5)", TEMIC, PAL,
+ 16*140.25, 16*463.25, 0x02,0x04,0x01,0x8e,623},
+
+ { "Temic NTSC (4136 FY5)", TEMIC, NTSC,
+ 16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
+ { "LG PAL (newer TAPC series)", LGINNOTEK, PAL,
+ 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,623},
+ { "Philips PAL/SECAM multi (FM1216ME MK3)", Philips, PAL,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
+ { "LG NTSC (newer TAPC series)", LGINNOTEK, NTSC,
+ 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,732},
+
+ { "HITACHI V7-J180AT", HITACHI, NTSC,
+ 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,940 },
+ { "Philips PAL_MK (FI1216 MK)", Philips, PAL,
+ 16*140.25,16*463.25,0x01,0xc2,0xcf,0x8e,623},
+ { "Philips 1236D ATSC/NTSC daul in",Philips,ATSC,
+ 16*157.25,16*454.00,0xa0,0x90,0x30,0x8e,732},
+ { "Philips NTSC MK3 (FM1236MK3 or FM1236/F)", Philips, NTSC,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
+
+ { "Philips 4 in 1 (ATI TV Wonder Pro/Conexant)", Philips, NTSC,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
+ { "Microtune 4049 FM5",Microtune,PAL,
+ 16*141.00,16*464.00,0xa0,0x90,0x30,0x8e,623},
+ { "Panasonic VP27s/ENGE4324D", Panasonic, NTSC,
+ 16*160.00,16*454.00,0x01,0x02,0x08,0xce,940},
+ { "LG NTSC (TAPE series)", LGINNOTEK, NTSC,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732 },
+
+ { "Tenna TNF 8831 BGFF)", Philips, PAL,
+ 16*161.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
+ { "Microtune 4042 FI5 ATSC/NTSC dual in", Microtune, NTSC,
+ 16*162.00,16*457.00,0xa2,0x94,0x31,0x8e,732},
+ { "TCL 2002N", TCL, NTSC,
+ 16*172.00,16*448.00,0x01,0x02,0x08,0x8e,732},
+ { "Philips PAL/SECAM_D (FM 1256 I-H3)", Philips, PAL,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
+
+ { "Thomson DDT 7610 (ATSC/NTSC)", THOMSON, ATSC,
+ 16*157.25,16*454.00,0x39,0x3a,0x3c,0x8e,732},
+ { "Philips FQ1286", Philips, NTSC,
+ 16*160.00,16*454.00,0x41,0x42,0x04,0x8e,940}, // UHF band untested
+ { "tda8290+75", Philips,PAL|NTSC,
+ /* see tda8290.c for details */ },
+ { "LG PAL (TAPE series)", LGINNOTEK, PAL,
+ 16*170.00, 16*450.00, 0x01,0x02,0x08,0xce,623},
+
+ { "Philips PAL/SECAM multi (FQ1216AME MK4)", Philips, PAL,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0xce,623 },
+ { "Philips FQ1236A MK4", Philips, NTSC,
+ 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732 },
+
+};
+unsigned const int tuner_count = ARRAY_SIZE(tuners);
+
+/* ---------------------------------------------------------------------- */
+
+static int tuner_getstatus(struct i2c_client *c)
+{
+ unsigned char byte;
+
+ if (1 != i2c_master_recv(c,&byte,1))
+ return 0;
+ return byte;
+}
+
+#define TUNER_POR 0x80
+#define TUNER_FL 0x40
+#define TUNER_MODE 0x38
+#define TUNER_AFC 0x07
+
+#define TUNER_STEREO 0x10 /* radio mode */
+#define TUNER_SIGNAL 0x07 /* radio mode */
+
+static int tuner_signal(struct i2c_client *c)
+{
+ return (tuner_getstatus(c) & TUNER_SIGNAL)<<13;
+}
+
+static int tuner_stereo(struct i2c_client *c)
+{
+ return (tuner_getstatus (c) & TUNER_STEREO);
+}
+
+#if 0 /* unused */
+static int tuner_islocked (struct i2c_client *c)
+{
+ return (tuner_getstatus (c) & TUNER_FL);
+}
+
+static int tuner_afcstatus (struct i2c_client *c)
+{
+ return (tuner_getstatus (c) & TUNER_AFC) - 2;
+}
+
+static int tuner_mode (struct i2c_client *c)
+{
+ return (tuner_getstatus (c) & TUNER_MODE) >> 3;
+}
+#endif
+
+/* ---------------------------------------------------------------------- */
+
+static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
+{
+ struct tuner *t = i2c_get_clientdata(c);
+ u8 config;
+ u16 div;
+ struct tunertype *tun;
+ unsigned char buffer[4];
+ int rc;
+
+ tun = &tuners[t->type];
+ if (freq < tun->thresh1) {
+ config = tun->VHF_L;
+ tuner_dbg("tv: VHF lowrange\n");
+ } else if (freq < tun->thresh2) {
+ config = tun->VHF_H;
+ tuner_dbg("tv: VHF high range\n");
+ } else {
+ config = tun->UHF;
+ tuner_dbg("tv: UHF range\n");
+ }
+
+
+ /* tv norm specific stuff for multi-norm tuners */
+ switch (t->type) {
+ case TUNER_PHILIPS_SECAM: // FI1216MF
+ /* 0x01 -> ??? no change ??? */
+ /* 0x02 -> PAL BDGHI / SECAM L */
+ /* 0x04 -> ??? PAL others / SECAM others ??? */
+ config &= ~0x02;
+ if (t->std & V4L2_STD_SECAM)
+ config |= 0x02;
+ break;
+
+ case TUNER_TEMIC_4046FM5:
+ config &= ~0x0f;
+
+ if (t->std & V4L2_STD_PAL_BG) {
+ config |= TEMIC_SET_PAL_BG;
+
+ } else if (t->std & V4L2_STD_PAL_I) {
+ config |= TEMIC_SET_PAL_I;
+
+ } else if (t->std & V4L2_STD_PAL_DK) {
+ config |= TEMIC_SET_PAL_DK;
+
+ } else if (t->std & V4L2_STD_SECAM_L) {
+ config |= TEMIC_SET_PAL_L;
+
+ }
+ break;
+
+ case TUNER_PHILIPS_FQ1216ME:
+ config &= ~0x0f;
+
+ if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
+ config |= PHILIPS_SET_PAL_BGDK;
+
+ } else if (t->std & V4L2_STD_PAL_I) {
+ config |= PHILIPS_SET_PAL_I;
+
+ } else if (t->std & V4L2_STD_SECAM_L) {
+ config |= PHILIPS_SET_PAL_L;
+
+ }
+ break;
+
+ case TUNER_PHILIPS_ATSC:
+ /* 0x00 -> ATSC antenna input 1 */
+ /* 0x01 -> ATSC antenna input 2 */
+ /* 0x02 -> NTSC antenna input 1 */
+ /* 0x03 -> NTSC antenna input 2 */
+ config &= ~0x03;
+ if (!(t->std & V4L2_STD_ATSC))
+ config |= 2;
+ /* FIXME: input */
+ break;
+
+ case TUNER_MICROTUNE_4042FI5:
+ /* Set the charge pump for fast tuning */
+ tun->config |= 0x40;
+ break;
+ }
+
+ /*
+ * Philips FI1216MK2 remark from specification :
+ * for channel selection involving band switching, and to ensure
+ * smooth tuning to the desired channel without causing
+ * unnecessary charge pump action, it is recommended to consider
+ * the difference between wanted channel frequency and the
+ * current channel frequency. Unnecessary charge pump action
+ * will result in very low tuning voltage which may drive the
+ * oscillator to extreme conditions.
+ *
+ * Progfou: specification says to send config data before
+ * frequency in case (wanted frequency < current frequency).
+ */
+
+ div=freq + tun->IFPCoff;
+ if (t->type == TUNER_PHILIPS_SECAM && freq < t->freq) {
+ buffer[0] = tun->config;
+ buffer[1] = config;
+ buffer[2] = (div>>8) & 0x7f;
+ buffer[3] = div & 0xff;
+ } else {
+ buffer[0] = (div>>8) & 0x7f;
+ buffer[1] = div & 0xff;
+ buffer[2] = tun->config;
+ buffer[3] = config;
+ }
+ tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
+ buffer[0],buffer[1],buffer[2],buffer[3]);
+
+ if (4 != (rc = i2c_master_send(c,buffer,4)))
+ tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
+
+ if (t->type == TUNER_MICROTUNE_4042FI5) {
+ // FIXME - this may also work for other tuners
+ unsigned long timeout = jiffies + msecs_to_jiffies(1);
+ u8 status_byte = 0;
+
+ /* Wait until the PLL locks */
+ for (;;) {
+ if (time_after(jiffies,timeout))
+ return;
+ if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
+ tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
+ break;
+ }
+ /* bit 6 is PLL locked indicator */
+ if (status_byte & 0x40)
+ break;
+ udelay(10);
+ }
+
+ /* Set the charge pump for optimized phase noise figure */
+ tun->config &= ~0x40;
+ buffer[0] = (div>>8) & 0x7f;
+ buffer[1] = div & 0xff;
+ buffer[2] = tun->config;
+ buffer[3] = config;
+ tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
+ buffer[0],buffer[1],buffer[2],buffer[3]);
+
+ if (4 != (rc = i2c_master_send(c,buffer,4)))
+ tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
+ }
+}
+
+static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
+{
+ struct tunertype *tun;
+ struct tuner *t = i2c_get_clientdata(c);
+ unsigned char buffer[4];
+ unsigned div;
+ int rc;
+
+ tun=&tuners[t->type];
+ div = freq + (int)(16*10.7);
+ buffer[2] = tun->config;
+
+ switch (t->type) {
+ case TUNER_PHILIPS_FM1216ME_MK3:
+ case TUNER_PHILIPS_FM1236_MK3:
+ buffer[3] = 0x19;
+ break;
+ case TUNER_PHILIPS_FM1256_IH3:
+ div = (20 * freq)/16 + 333 * 2;
+ buffer[2] = 0x80;
+ buffer[3] = 0x19;
+ break;
+ case TUNER_LG_PAL_FM:
+ buffer[3] = 0xa5;
+ break;
+ default:
+ buffer[3] = 0xa4;
+ break;
+ }
+ buffer[0] = (div>>8) & 0x7f;
+ buffer[1] = div & 0xff;
+
+ tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
+ buffer[0],buffer[1],buffer[2],buffer[3]);
+
+ if (4 != (rc = i2c_master_send(c,buffer,4)))
+ tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
+}
+
+int default_tuner_init(struct i2c_client *c)
+{
+ struct tuner *t = i2c_get_clientdata(c);
+
+ tuner_info("type set to %d (%s)\n",
+ t->type, tuners[t->type].name);
+ strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
+
+ t->tv_freq = default_set_tv_freq;
+ t->radio_freq = default_set_radio_freq;
+ t->has_signal = tuner_signal;
+ t->is_stereo = tuner_stereo;
+ return 0;
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.