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SubjectRe: Fwd: [PATCH] tuner-core.c improvments and Ymec Tvision TVF8533MF support]
I'm resubmiting the patch because I forgot diff for
include/media/tuner.h. The patch is now complete. It is for
linux-2.6.12-rc5-mm2.

>tuner-core.c, tuner.h, Kconfig:
>
> - tuner-core changed to support multiple I2C devices used on
>some adapters;
> - Kconfig now has an option (CONFIG_TUNER_MULTI_I2C) to enable
>this new behavor;
> - By default, even enabling CONFIG_TUNER_MULTI_I2C, tuner-core
>emulates the old behavor, using first I2C device for both FM and TV;
> - There is a new i2c command (TUNER_SET_ADDR) to allow tuner
>clients to select I2C address for FM or TV tuner;
> - Tuner I2C dettach now generates a warning on syslog if failed.
>
>tuner-simple.c:
> - TVision TVF-8531MF and TVF-5533 MF tuner included. It uses, by
>default, I2C on 0xC2 address for TV and on 0xC0 for Radio. Both TV and
>FM Radio mode are working.
>
>Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
>
>

diff -ur linux-2.6.12-rc5-mm.org/drivers/media/video/Kconfig linux-2.6.12-rc5-mm/drivers/media/video/Kconfig
--- linux-2.6.12-rc5-mm.org/drivers/media/video/Kconfig 2005-06-01 09:56:38.000000000 -0300
+++ linux-2.6.12-rc5-mm/drivers/media/video/Kconfig 2005-06-01 15:55:00.000000000 -0300
@@ -7,6 +7,19 @@

comment "Video Adapters"

+config CONFIG_TUNER_MULTI_I2C
+ bool "Enable support for multiple I2C devices on Video Adapters (EXPERIMENTAL)"
+ depends on VIDEO_DEV && EXPERIMENTAL
+ ---help---
+ Some video adapters have more than one tuner inside. This patch
+ enables support for using more than one tuner. This is required
+ for some cards to allow tunning both video and radio.
+ It also improves I2C autodetection for these cards.
+
+ Only few tuners currently is supporting this. More to come.
+
+ It is safe to say 'Y' here even if your card has only one I2C tuner.
+
config VIDEO_BT848
tristate "BT848 Video For Linux"
depends on VIDEO_DEV && PCI && I2C
diff -ur linux-2.6.12-rc5-mm.org/drivers/media/video/tuner-core.c linux-2.6.12-rc5-mm/drivers/media/video/tuner-core.c
--- linux-2.6.12-rc5-mm.org/drivers/media/video/tuner-core.c 2005-06-01 09:56:38.000000000 -0300
+++ linux-2.6.12-rc5-mm/drivers/media/video/tuner-core.c 2005-06-01 16:02:39.000000000 -0300
@@ -1,5 +1,5 @@
/*
- * $Id: tuner-core.c,v 1.5 2005/02/15 15:59:35 kraxel Exp $
+ * $Id: tuner-core.c,v 1.7 2005/05/30 02:02:47 mchehab Exp $
*
* i2c tv tuner chip device driver
* core core, i.e. kernel interfaces, registering and so on
@@ -23,6 +23,11 @@
#include <media/tuner.h>
#include <media/audiochip.h>

+/*
+ * comment line bellow to return to old behavor, where only one I2C device is supported
+ */
+/* #define CONFIG_TUNER_MULTI_I2C */
+
#define UNSET (-1U)

/* standard i2c insmod options */
@@ -53,6 +58,9 @@
MODULE_LICENSE("GPL");

static int this_adap;
+#ifdef CONFIG_TUNER_MULTI_I2C
+static unsigned short tv_tuner, radio_tuner;
+#endif

static struct i2c_driver driver;
static struct i2c_client client_template;
@@ -125,6 +133,28 @@
t->freq = freq;
}

+#ifdef CONFIG_TUNER_MULTI_I2C
+static void set_addr(struct i2c_client *c, struct tuner_addr *tun_addr)
+{
+ struct tuner *t = i2c_get_clientdata(c);
+
+ switch (tun_addr->type) {
+ case V4L2_TUNER_RADIO:
+ radio_tuner=tun_addr->addr;
+ tuner_dbg("radio tuner set to I2C address 0x%02x\n",radio_tuner<<1);
+
+ break;
+ default:
+ tv_tuner=tun_addr->addr;
+ tuner_dbg("TV tuner set to I2C address 0x%02x\n",tv_tuner<<1);
+ break;
+ }
+}
+#else
+#define set_addr(c,tun_addr) \
+ tuner_warn("It is recommended to enable CONFIG_TUNER_MULTI_I2C for this card.\n");
+#endif
+
static void set_type(struct i2c_client *c, unsigned int type)
{
struct tuner *t = i2c_get_clientdata(c);
@@ -197,8 +227,16 @@
{
struct tuner *t;

+#ifndef CONFIG_TUNER_MULTI_I2C
if (this_adap > 0)
return -1;
+#else
+ /* by default, first I2C card is both tv and radio tuner */
+ if (this_adap == 0) {
+ tv_tuner = addr;
+ radio_tuner = addr;
+ }
+#endif
this_adap++;

client_template.adapter = adap;
@@ -228,6 +266,11 @@
}
this_adap = 0;

+#ifdef CONFIG_TUNER_MULTI_I2C
+ tv_tuner = 0;
+ radio_tuner = 0;
+#endif
+
if (adap->class & I2C_CLASS_TV_ANALOG)
return i2c_probe(adap, &addr_data, tuner_attach);
return 0;
@@ -236,8 +279,14 @@
static int tuner_detach(struct i2c_client *client)
{
struct tuner *t = i2c_get_clientdata(client);
+ int err;

- i2c_detach_client(&t->i2c);
+ err=i2c_detach_client(&t->i2c);
+ if (err) {
+ tuner_warn ("Client deregistration failed, client not detached.\n");
+ return err;
+ }
+
kfree(t);
return 0;
}
@@ -248,7 +297,18 @@
#define CHECK_V4L2 if (t->using_v4l2) { if (tuner_debug) \
tuner_info("ignore v4l1 call\n"); \
return 0; }
-
+
+#ifdef CONFIG_TUNER_MULTI_I2C
+#define CHECK_ADDR(tp,cmd) if (client->addr!=tp) { \
+ tuner_info ("Cmd %s to addr 0x%02x rejected.\n",cmd,client->addr<<1); \
+ return 0; }
+#define CHECK_MODE(cmd) if (t->mode == V4L2_TUNER_RADIO) { \
+ CHECK_ADDR(radio_tuner,cmd) } else { CHECK_ADDR(tv_tuner,cmd); }
+#else
+#define CHECK_ADDR(tp,cmd)
+#define CHECK_MODE(cmd)
+#endif
+
static int
tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
@@ -256,18 +316,23 @@
unsigned int *iarg = (int*)arg;

switch (cmd) {
-
/* --- configuration --- */
case TUNER_SET_TYPE:
set_type(client,*iarg);
break;
+ case TUNER_SET_ADDR:
+ set_addr(client,(struct tuner_addr *)arg);
+ break;
case AUDC_SET_RADIO:
+ CHECK_ADDR(radio_tuner,"AUDC_SET_RADIO");
+
if (V4L2_TUNER_RADIO != t->mode) {
set_tv_freq(client,400 * 16);
t->mode = V4L2_TUNER_RADIO;
}
break;
case AUDC_CONFIG_PINNACLE:
+ CHECK_ADDR(tv_tuner,"AUDC_CONFIG_PINNACLE");
switch (*iarg) {
case 2:
tuner_dbg("pinnacle pal\n");
@@ -295,6 +360,7 @@
};
struct video_channel *vc = arg;

+ CHECK_ADDR(tv_tuner,"VIDIOCSCHAN");
CHECK_V4L2;
t->mode = V4L2_TUNER_ANALOG_TV;
if (vc->norm < ARRAY_SIZE(map))
@@ -308,6 +374,7 @@
{
unsigned long *v = arg;

+ CHECK_MODE("VIDIOCSFREQ");
CHECK_V4L2;
set_freq(client,*v);
return 0;
@@ -316,6 +383,7 @@
{
struct video_tuner *vt = arg;

+ CHECK_ADDR(radio_tuner,"VIDIOCGTUNER:");
CHECK_V4L2;
if (V4L2_TUNER_RADIO == t->mode && t->has_signal)
vt->signal = t->has_signal(client);
@@ -325,6 +393,7 @@
{
struct video_audio *va = arg;

+ CHECK_ADDR(radio_tuner,"VIDIOCGAUDIO");
CHECK_V4L2;
if (V4L2_TUNER_RADIO == t->mode && t->is_stereo)
va->mode = t->is_stereo(client)
@@ -337,6 +406,7 @@
{
v4l2_std_id *id = arg;

+ CHECK_ADDR(tv_tuner,"VIDIOC_S_STD");
SWITCH_V4L2;
t->mode = V4L2_TUNER_ANALOG_TV;
t->std = *id;
@@ -349,6 +419,7 @@
{
struct v4l2_frequency *f = arg;

+ CHECK_MODE("VIDIOC_S_FREQUENCY");
SWITCH_V4L2;
if (V4L2_TUNER_RADIO == f->type &&
V4L2_TUNER_RADIO != t->mode)
@@ -361,6 +432,7 @@
{
struct v4l2_frequency *f = arg;

+ CHECK_MODE("VIDIOC_G_FREQUENCY");
SWITCH_V4L2;
f->type = t->mode;
f->frequency = t->freq;
@@ -370,6 +442,7 @@
{
struct v4l2_tuner *tuner = arg;

+ CHECK_MODE("VIDIOC_G_TUNER");
SWITCH_V4L2;
if (V4L2_TUNER_RADIO == t->mode && t->has_signal)
tuner->signal = t->has_signal(client);
diff -ur linux-2.6.12-rc5-mm.org/drivers/media/video/tuner-simple.c linux-2.6.12-rc5-mm/drivers/media/video/tuner-simple.c
--- linux-2.6.12-rc5-mm.org/drivers/media/video/tuner-simple.c 2005-05-25 00:31:20.000000000 -0300
+++ linux-2.6.12-rc5-mm/drivers/media/video/tuner-simple.c 2005-06-01 15:28:08.000000000 -0300
@@ -1,5 +1,5 @@
/*
- * $Id: tuner-simple.c,v 1.10 2005/03/08 08:38:00 kraxel Exp $
+ * $Id: tuner-simple.c,v 1.14 2005/05/30 02:02:47 mchehab Exp $
*
* i2c tv tuner chip device driver
* controls all those simple 4-control-bytes style tuners.
@@ -212,6 +212,11 @@
{ "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,
+ 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},
};
unsigned const int tuner_count = ARRAY_SIZE(tuners);

@@ -424,6 +429,13 @@
buffer[2] = tun->config;

switch (t->type) {
+ case TUNER_YMEC_TVF_5533MF:
+
+ /*These values are empirically determinated */
+ div = (freq*122)/16 - 20;
+ buffer[2] = 0x88; /* could be also 0x80 */
+ buffer[3] = 0x19; /* could be also 0x10, 0x18, 0x99 */
+ break;
case TUNER_PHILIPS_FM1216ME_MK3:
case TUNER_PHILIPS_FM1236_MK3:
buffer[3] = 0x19;
@@ -457,7 +469,21 @@
tuner_info("type set to %d (%s)\n",
t->type, tuners[t->type].name);
strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
-
+
+ switch (t->type) {
+ case TUNER_YMEC_TVF_5533MF:
+ {
+ struct tuner_addr tun_addr = { V4L2_TUNER_ANALOG_TV, 0xc2>>1 };
+
+ if (c->driver->command) {
+ c->driver->command(c, TUNER_SET_ADDR, &tun_addr);
+ } else {
+ tuner_warn("Couldn't set TV tuner I2C address to 0x%02x\n",tun_addr.addr<<1);
+ }
+ break;
+ }
+ }
+
t->tv_freq = default_set_tv_freq;
t->radio_freq = default_set_radio_freq;
t->has_signal = tuner_signal;
diff -ur linux-2.6.12-rc5-mm.org/include/media/tuner.h linux-2.6.12-rc5-mm/include/media/tuner.h
--- linux-2.6.12-rc5-mm.org/include/media/tuner.h 2005-05-25 00:31:20.000000000 -0300
+++ linux-2.6.12-rc5-mm/include/media/tuner.h 2005-06-01 15:27:01.000000000 -0300
@@ -98,6 +98,9 @@
#define TUNER_PHILIPS_FQ1216AME_MK4 56 /* Hauppauge PVR-150 PAL */
#define TUNER_PHILIPS_FQ1236A_MK4 57 /* Hauppauge PVR-500MCE NTSC */

+#define TUNER_YMEC_TVF_8531MF 58
+#define TUNER_YMEC_TVF_5533MF 59 /* Pixelview Pro Ultra NTSC */
+
#define NOTUNER 0
#define PAL 1 /* PAL_BG */
#define PAL_I 2
@@ -121,8 +124,10 @@

#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_ADDR _IOW('T',3,int) /* Chooses tuner I2C address */

#define TDA9887_SET_CONFIG _IOW('t',5,int)
+
/* tv card specific */
# define TDA9887_PRESENT (1<<0)
# define TDA9887_PORT1_INACTIVE (1<<1)
@@ -143,6 +148,11 @@
#define I2C_ADDR_TDA8290 0x4b
#define I2C_ADDR_TDA8275 0x61

+struct tuner_addr {
+ enum v4l2_tuner_type type;
+ unsigned short addr;
+};
+
struct tuner {
/* device */
struct i2c_client i2c;
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