[PATCH] v4l: I2C Tuner

- Fixed a trouble on tuner-core that generates erros on computers with more
  than one TV card.
- Rename tuner structures fields.
- Tail spaces removed.
- I2C cleanups and converged to a basic reference structure.
- Removed unused structures.
- Fix setting frequency on tda8290.
- Added code for TEA5767 autodetection.
- Standby mode support implemented. It is used to disable
  a non used tuner. Currenlty implemented on tea5767.
- New macro: set_type disables other tuner when changing mode.
- Some cleanups.
- Use 50 kHz step when tunning radio for most tuners to improve precision.
Signed-off-by: Fabien Perrot <perrot1983@yahoo.fr>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-By: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/media/video/mt20xx.c

@@ -511,22 +511,6 @@ int microtune_init(struct i2c_client *c)
 	tuner_info("microtune: companycode=%04x part=%02x rev=%02x\n",
 		   company_code,buf[0x13],buf[0x14]);
 
-#if 0
-	/* seems to cause more problems than it solves ... */
-	switch (company_code) {
-	case 0x30bf:
-	case 0x3cbf:
-	case 0x3dbf:
-	case 0x4d54:
-	case 0x8e81:
-	case 0x8e91:
-		/* ok (?) */
-		break;
-	default:
-		tuner_warn("tuner: microtune: unknown companycode\n");
-		return 0;
-	}
-#endif
 
 	if (buf[0x13] < ARRAY_SIZE(microtune_part) &&
 	    NULL != microtune_part[buf[0x13]])

drivers/media/video/tda8290.c

 /*
- * $Id: tda8290.c,v 1.11 2005/06/18 06:09:06 nsh Exp $
+ * $Id: tda8290.c,v 1.15 2005/07/08 20:21:33 mchehab Exp $
  *
  * i2c tv tuner chip device driver
  * controls the philips tda8290+75 tuner chip combo.
@@ -136,15 +136,12 @@ static int tda8290_tune(struct i2c_client *c)
 	return 0;
 }
 
-static void set_frequency(struct tuner *t, u16 ifc)
+static void set_frequency(struct tuner *t, u16 ifc, unsigned int freq)
 {
-	u32 freq;
 	u32 N;
 
 	if (t->mode == V4L2_TUNER_RADIO)
-		freq = t->freq / 1000;
-	else
-		freq = t->freq;
+		freq = freq / 1000;
 
 	N = (((freq<<3)+ifc)&0x3fffc);
 
@@ -187,14 +184,14 @@ static void set_tv_freq(struct i2c_client *c, unsigned int freq)
 	struct tuner *t = i2c_get_clientdata(c);
 
 	set_audio(t);
-	set_frequency(t, 864);
+	set_frequency(t, 864, freq);
 	tda8290_tune(c);
 }
 
 static void set_radio_freq(struct i2c_client *c, unsigned int freq)
 {
 	struct tuner *t = i2c_get_clientdata(c);
-	set_frequency(t, 704);
+	set_frequency(t, 704, freq);
 	tda8290_tune(c);
 }
 

drivers/media/video/tda9887.c

@@ -569,15 +569,6 @@ static int tda9887_configure(struct tda9887 *t)
 	tda9887_set_config(t,buf);
 	tda9887_set_insmod(t,buf);
 
-#if 0
-	/* This as-is breaks some cards, must be fixed in a
-	 * card-specific way, probably using TDA9887_SET_CONFIG to
-	 * turn on/off port2 */
-	if (t->std & V4L2_STD_SECAM_L) {
-		/* secam fixup (FIXME: move this to tvnorms array?) */
-		buf[1] &= ~cOutputPort2Inactive;
-	}
-#endif
 
 	dprintk(PREFIX "writing: b=0x%02x c=0x%02x e=0x%02x\n",
 		buf[1],buf[2],buf[3]);

drivers/media/video/tuner-simple.c

 /*
- * $Id: tuner-simple.c,v 1.31 2005/06/21 16:02:25 mkrufky Exp $
+ * $Id: tuner-simple.c,v 1.39 2005/07/07 01:49:30 mkrufky Exp $
  *
  * i2c tv tuner chip device driver
  * controls all those simple 4-control-bytes style tuners.
@@ -54,6 +54,27 @@
 #define PHILIPS_MF_SET_PAL_L	0x03 // France
 #define PHILIPS_MF_SET_PAL_L2	0x02 // L'
 
+/* Control byte */
+
+#define TUNER_RATIO_MASK        0x06 /* Bit cb1:cb2 */
+#define TUNER_RATIO_SELECT_50   0x00
+#define TUNER_RATIO_SELECT_32   0x02
+#define TUNER_RATIO_SELECT_166  0x04
+#define TUNER_RATIO_SELECT_62   0x06
+
+#define TUNER_CHARGE_PUMP       0x40  /* Bit cb6 */
+
+/* Status byte */
+
+#define TUNER_POR	  0x80
+#define TUNER_FL          0x40
+#define TUNER_MODE        0x38
+#define TUNER_AFC         0x07
+#define TUNER_SIGNAL      0x07
+#define TUNER_STEREO      0x10
+
+#define TUNER_PLL_LOCKED   0x40
+#define TUNER_STEREO_MK3   0x04
 
 /* ---------------------------------------------------------------------- */
 
@@ -211,21 +232,17 @@ static struct tunertype tuners[] = {
 	  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 },
-
-	/* Should work for TVF8531MF, TVF8831MF, TVF8731MF */
-	{ "Ymec TVision TVF-8531MF", Philips, NTSC,
+	{ "Ymec TVision TVF-8531MF/8831MF/8731MF", Philips, NTSC,
 	  16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
 	{ "Ymec TVision TVF-5533MF", Philips, NTSC,
 	  16*160.00,16*454.00,0x01,0x02,0x04,0x8e,732},
+
 	{ "Thomson DDT 7611 (ATSC/NTSC)", THOMSON, ATSC,
 	  16*157.25,16*454.00,0x39,0x3a,0x3c,0x8e,732},
-	/* Should work for TNF9533-D/IF, TNF9533-B/DF */
-	{ "Tena TNF9533-D/IF", Philips, PAL,
+	{ "Tena TNF9533-D/IF/TNF9533-B/DF", Philips, PAL,
           16*160.25,16*464.25,0x01,0x02,0x04,0x8e,623},
-
-	/* This entry is for TEA5767 FM radio only chip used on several boards w/TV tuner */
-	{ TEA5767_TUNER_NAME, Philips, RADIO,
-          -1, -1, 0, 0, 0, TEA5767_LOW_LO_32768,0},
+	{ "Philips TEA5767HN FM Radio", Philips, RADIO,
+          /* see tea5767.c for details */},
 	{ "Philips FMD1216ME MK3 Hybrid Tuner", Philips, PAL,
 	  16*160.00,16*442.00,0x51,0x52,0x54,0x86,623 },
 };
@@ -244,15 +261,6 @@ static int tuner_getstatus(struct i2c_client *c)
 	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_STEREO_MK3   0x04 /* radio mode */
-#define TUNER_SIGNAL       0x07 /* radio mode */
-
 static int tuner_signal(struct i2c_client *c)
 {
 	return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
@@ -278,22 +286,6 @@ static int tuner_stereo(struct i2c_client *c)
 	return 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
 
 /* ---------------------------------------------------------------------- */
 
@@ -376,7 +368,7 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
 
 	case TUNER_MICROTUNE_4042FI5:
 		/* Set the charge pump for fast tuning */
-		tun->config |= 0x40;
+		tun->config |= TUNER_CHARGE_PUMP;
 		break;
 	}
 
@@ -425,14 +417,13 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
 				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)
+			if (status_byte & TUNER_PLL_LOCKED)
 				break;
 			udelay(10);
 		}
 
 		/* Set the charge pump for optimized phase noise figure */
-		tun->config &= ~0x40;
+		tun->config &= ~TUNER_CHARGE_PUMP;
 		buffer[0] = (div>>8) & 0x7f;
 		buffer[1] = div      & 0xff;
 		buffer[2] = tun->config;
@@ -453,26 +444,22 @@ static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
 	unsigned div;
 	int rc;
 
-	tun=&tuners[t->type];
-	div = (freq / 1000) + (int)(16*10.7);
-	buffer[2] = tun->config;
+	tun = &tuners[t->type];
+	div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
+	buffer[2] = (tun->config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */
 
 	switch (t->type) {
 	case TUNER_TENA_9533_DI:
 	case TUNER_YMEC_TVF_5533MF:
-		/*These values are empirically determinated */
-		div = (freq * 122) / 16000 - 20;
-		buffer[2] = 0x88; /* could be also 0x80 */
-		buffer[3] = 0x19; /* could be also 0x10, 0x18, 0x99 */
-		break;
+		tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
+		return;
 	case TUNER_PHILIPS_FM1216ME_MK3:
 	case TUNER_PHILIPS_FM1236_MK3:
 	case TUNER_PHILIPS_FMD1216ME_MK3:
 		buffer[3] = 0x19;
 		break;
 	case TUNER_PHILIPS_FM1256_IH3:
-		div = (20 * freq) / 16000 + 333 * 2;
-	        buffer[2] = 0x80;
+		div = (20 * freq) / 16000 + (int)(33.3 * 20);  /* IF 33.3 MHz */
 		buffer[3] = 0x19;
 		break;
 	case TUNER_LG_PAL_FM:

include/media/tuner.h

 
-/* $Id: tuner.h,v 1.33 2005/06/21 14:58:08 mkrufky Exp $
+/* $Id: tuner.h,v 1.42 2005/07/06 09:42:19 mchehab Exp $
  *
     tuner.h - definition for different tuners
 
@@ -26,8 +26,6 @@
 
 #include <linux/videodev2.h>
 
-#include "id.h"
-
 #define ADDR_UNSET (255)
 
 #define TUNER_TEMIC_PAL     0        /* 4002 FH5 (3X 7756, 9483) */
@@ -111,8 +109,6 @@
 #define TUNER_TEA5767         62	/* Only FM Radio Tuner */
 #define TUNER_PHILIPS_FMD1216ME_MK3 63
 
-#define TEA5767_TUNER_NAME "Philips TEA5767HN FM Radio"
-
 #define NOTUNER 0
 #define PAL     1	/* PAL_BG */
 #define PAL_I   2
@@ -135,19 +131,8 @@
 #define TCL     11
 #define THOMSON 12
 
-enum v4l_radio_tuner {
-        TEA5767_LOW_LO_32768    = 0,
-        TEA5767_HIGH_LO_32768   = 1,
-        TEA5767_LOW_LO_13MHz    = 2,
-        TEA5767_HIGH_LO_13MHz   = 3,
-};
-
-
-#define TUNER_SET_TYPE               _IOW('t',1,int)    /* set tuner type */
-#define TUNER_SET_TVFREQ             _IOW('t',2,int)    /* set tv freq */
-#define TUNER_SET_TYPE_ADDR          _IOW('T',3,int)	/* set tuner type and I2C addr */
-
-#define  TDA9887_SET_CONFIG          _IOW('t',5,int)
+#define TUNER_SET_TYPE_ADDR          _IOW('T',3,int)
+#define TDA9887_SET_CONFIG           _IOW('t',5,int)
 
 /* tv card specific */
 # define TDA9887_PRESENT             (1<<0)
@@ -169,25 +154,34 @@ enum v4l_radio_tuner {
 #define I2C_ADDR_TDA8290        0x4b
 #define I2C_ADDR_TDA8275        0x61
 
-struct tuner_addr {
-	enum v4l2_tuner_type	v4l2_tuner;
-	unsigned int		type;
+enum tuner_mode {
+	T_UNINITIALIZED = 0,
+	T_RADIO		= 1 << V4L2_TUNER_RADIO,
+	T_ANALOG_TV     = 1 << V4L2_TUNER_ANALOG_TV,
+	T_DIGITAL_TV    = 1 << V4L2_TUNER_DIGITAL_TV,
+	T_STANDBY	= 1 << 31
+};
+
+struct tuner_setup {
 	unsigned short		addr;
+	unsigned int		type;
+	unsigned int		mode_mask;
 };
 
 struct tuner {
 	/* device */
 	struct i2c_client i2c;
 
-	/* state + config */
-	unsigned int initialized;
 	unsigned int type;            /* chip type */
+
+	unsigned int          mode;
+	unsigned int          mode_mask; /* Combination of allowable modes */
+
 	unsigned int freq;            /* keep track of the current settings */
+	unsigned int audmode;
 	v4l2_std_id  std;
-	int          using_v4l2;
 
-	enum v4l2_tuner_type mode;
-	unsigned int input;
+	int          using_v4l2;
 
 	/* used by MT2032 */
 	unsigned int xogc;
@@ -197,15 +191,11 @@ struct tuner {
 	unsigned char i2c_easy_mode[2];
 	unsigned char i2c_set_freq[8];
 
-	/* used to keep track of audmode */
-	unsigned int audmode;
-
 	/* function ptrs */
 	void (*tv_freq)(struct i2c_client *c, unsigned int freq);
 	void (*radio_freq)(struct i2c_client *c, unsigned int freq);
 	int  (*has_signal)(struct i2c_client *c);
 	int  (*is_stereo)(struct i2c_client *c);
-	int  (*set_tuner)(struct i2c_client *c, struct v4l2_tuner *v);
 };
 
 extern unsigned int tuner_debug;
@@ -215,6 +205,7 @@ extern int microtune_init(struct i2c_client *c);
 extern int tda8290_init(struct i2c_client *c);
 extern int tea5767_tuner_init(struct i2c_client *c);
 extern int default_tuner_init(struct i2c_client *c);
+extern int tea5767_autodetection(struct i2c_client *c);
 
 #define tuner_warn(fmt, arg...) \
 	dev_printk(KERN_WARNING , &t->i2c.dev , fmt , ## arg)