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path: root/drivers/media/video/bttv-i2c.c
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Diffstat (limited to 'drivers/media/video/bttv-i2c.c')
-rw-r--r--drivers/media/video/bttv-i2c.c61
1 files changed, 34 insertions, 27 deletions
diff --git a/drivers/media/video/bttv-i2c.c b/drivers/media/video/bttv-i2c.c
index e684df37eb0..77619eb131f 100644
--- a/drivers/media/video/bttv-i2c.c
+++ b/drivers/media/video/bttv-i2c.c
@@ -5,7 +5,7 @@
bttv - Bt848 frame grabber driver
Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
- & Marcus Metzler (mocm@thp.uni-koeln.de)
+ & Marcus Metzler (mocm@thp.uni-koeln.de)
(c) 1999-2003 Gerd Knorr <kraxel@bytesex.org>
This program is free software; you can redistribute it and/or modify
@@ -237,7 +237,7 @@ bttv_i2c_readbytes(struct bttv *btv, const struct i2c_msg *msg, int last)
err:
if (i2c_debug)
printk(" ERR: %d\n",retval);
- return retval;
+ return retval;
}
static int bttv_i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
@@ -290,7 +290,13 @@ static struct i2c_adapter bttv_i2c_adap_hw_template = {
static int attach_inform(struct i2c_client *client)
{
- struct bttv *btv = i2c_get_adapdata(client->adapter);
+ struct bttv *btv = i2c_get_adapdata(client->adapter);
+ int addr=ADDR_UNSET;
+
+
+ if (ADDR_UNSET != bttv_tvcards[btv->c.type].tuner_addr)
+ addr = bttv_tvcards[btv->c.type].tuner_addr;
+
if (bttv_debug)
printk(KERN_DEBUG "bttv%d: %s i2c attach [addr=0x%x,client=%s]\n",
@@ -300,19 +306,20 @@ static int attach_inform(struct i2c_client *client)
return 0;
if (btv->tuner_type != UNSET) {
- struct tuner_setup tun_setup;
+ struct tuner_setup tun_setup;
+
+ if ((addr==ADDR_UNSET) ||
+ (addr==client->addr)) {
- tun_setup.mode_mask = T_RADIO | T_ANALOG_TV | T_DIGITAL_TV;
- tun_setup.type = btv->tuner_type;
- tun_setup.addr = ADDR_UNSET;
+ tun_setup.mode_mask = T_ANALOG_TV | T_DIGITAL_TV | T_RADIO;
+ tun_setup.type = btv->tuner_type;
+ tun_setup.addr = addr;
+ bttv_call_i2c_clients(btv, TUNER_SET_TYPE_ADDR, &tun_setup);
+ }
- client->driver->command (client, TUNER_SET_TYPE_ADDR, &tun_setup);
}
- if (btv->pinnacle_id != UNSET)
- client->driver->command(client,AUDC_CONFIG_PINNACLE,
- &btv->pinnacle_id);
- return 0;
+ return 0;
}
void bttv_call_i2c_clients(struct bttv *btv, unsigned int cmd, void *arg)
@@ -330,43 +337,43 @@ static struct i2c_client bttv_i2c_client_template = {
/* read I2C */
int bttv_I2CRead(struct bttv *btv, unsigned char addr, char *probe_for)
{
- unsigned char buffer = 0;
+ unsigned char buffer = 0;
if (0 != btv->i2c_rc)
return -1;
if (bttv_verbose && NULL != probe_for)
printk(KERN_INFO "bttv%d: i2c: checking for %s @ 0x%02x... ",
btv->c.nr,probe_for,addr);
- btv->i2c_client.addr = addr >> 1;
- if (1 != i2c_master_recv(&btv->i2c_client, &buffer, 1)) {
+ btv->i2c_client.addr = addr >> 1;
+ if (1 != i2c_master_recv(&btv->i2c_client, &buffer, 1)) {
if (NULL != probe_for) {
if (bttv_verbose)
printk("not found\n");
} else
printk(KERN_WARNING "bttv%d: i2c read 0x%x: error\n",
btv->c.nr,addr);
- return -1;
+ return -1;
}
if (bttv_verbose && NULL != probe_for)
printk("found\n");
- return buffer;
+ return buffer;
}
/* write I2C */
int bttv_I2CWrite(struct bttv *btv, unsigned char addr, unsigned char b1,
- unsigned char b2, int both)
+ unsigned char b2, int both)
{
- unsigned char buffer[2];
- int bytes = both ? 2 : 1;
+ unsigned char buffer[2];
+ int bytes = both ? 2 : 1;
if (0 != btv->i2c_rc)
return -1;
- btv->i2c_client.addr = addr >> 1;
- buffer[0] = b1;
- buffer[1] = b2;
- if (bytes != i2c_master_send(&btv->i2c_client, buffer, bytes))
+ btv->i2c_client.addr = addr >> 1;
+ buffer[0] = b1;
+ buffer[1] = b2;
+ if (bytes != i2c_master_send(&btv->i2c_client, buffer, bytes))
return -1;
- return 0;
+ return 0;
}
/* read EEPROM content */
@@ -431,8 +438,8 @@ int __devinit init_bttv_i2c(struct bttv *btv)
"bt%d #%d [%s]", btv->id, btv->c.nr,
btv->use_i2c_hw ? "hw" : "sw");
- i2c_set_adapdata(&btv->c.i2c_adap, btv);
- btv->i2c_client.adapter = &btv->c.i2c_adap;
+ i2c_set_adapdata(&btv->c.i2c_adap, btv);
+ btv->i2c_client.adapter = &btv->c.i2c_adap;
#ifdef I2C_CLASS_TV_ANALOG
if (bttv_tvcards[btv->c.type].no_video)