diff options
Diffstat (limited to 'drivers/media/video/bttv-i2c.c')
| -rw-r--r-- | drivers/media/video/bttv-i2c.c | 61 |
1 files changed, 34 insertions, 27 deletions
diff --git a/drivers/media/video/bttv-i2c.c b/drivers/media/video/bttv-i2c.c index e684df37eb0e..77619eb131f6 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) |
