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path: root/drivers/media/video/em28xx/em28xx-i2c.c
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Diffstat (limited to 'drivers/media/video/em28xx/em28xx-i2c.c')
-rw-r--r--drivers/media/video/em28xx/em28xx-i2c.c160
1 files changed, 88 insertions, 72 deletions
diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c
index cacd04d46e99..6a78fd294cab 100644
--- a/drivers/media/video/em28xx/em28xx-i2c.c
+++ b/drivers/media/video/em28xx/em28xx-i2c.c
@@ -33,19 +33,29 @@
/* ----------------------------------------------------------- */
-static unsigned int i2c_scan = 0;
+static unsigned int i2c_scan;
module_param(i2c_scan, int, 0444);
MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time");
-static unsigned int i2c_debug = 0;
+static unsigned int i2c_debug;
module_param(i2c_debug, int, 0644);
MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
-#define dprintk1(lvl,fmt, args...) if (i2c_debug>=lvl) do {\
- printk(fmt, ##args); } while (0)
-#define dprintk2(lvl,fmt, args...) if (i2c_debug>=lvl) do{ \
- printk(KERN_DEBUG "%s at %s: " fmt, \
- dev->name, __FUNCTION__ , ##args); } while (0)
+
+#define dprintk1(lvl, fmt, args...) \
+do { \
+ if (i2c_debug >= lvl) { \
+ printk(fmt, ##args); \
+ } \
+} while (0)
+
+#define dprintk2(lvl, fmt, args...) \
+do { \
+ if (i2c_debug >= lvl) { \
+ printk(KERN_DEBUG "%s at %s: " fmt, \
+ dev->name, __func__ , ##args); \
+ } \
+} while (0)
/*
* em2800_i2c_send_max4()
@@ -235,16 +245,16 @@ static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap,
return 0;
for (i = 0; i < num; i++) {
addr = msgs[i].addr << 1;
- dprintk2(2,"%s %s addr=%x len=%d:",
+ dprintk2(2, "%s %s addr=%x len=%d:",
(msgs[i].flags & I2C_M_RD) ? "read" : "write",
i == num - 1 ? "stop" : "nonstop", addr, msgs[i].len);
- if (!msgs[i].len) { /* no len: check only for device presence */
+ if (!msgs[i].len) { /* no len: check only for device presence */
if (dev->is_em2800)
rc = em2800_i2c_check_for_device(dev, addr);
else
rc = em28xx_i2c_check_for_device(dev, addr);
if (rc < 0) {
- dprintk2(2," no device\n");
+ dprintk2(2, " no device\n");
return rc;
}
@@ -258,14 +268,13 @@ static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap,
rc = em28xx_i2c_recv_bytes(dev, addr,
msgs[i].buf,
msgs[i].len);
- if (i2c_debug>=2) {
- for (byte = 0; byte < msgs[i].len; byte++) {
+ if (i2c_debug >= 2) {
+ for (byte = 0; byte < msgs[i].len; byte++)
printk(" %02x", msgs[i].buf[byte]);
- }
}
} else {
/* write bytes */
- if (i2c_debug>=2) {
+ if (i2c_debug >= 2) {
for (byte = 0; byte < msgs[i].len; byte++)
printk(" %02x", msgs[i].buf[byte]);
}
@@ -281,13 +290,13 @@ static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap,
}
if (rc < 0)
goto err;
- if (i2c_debug>=2)
+ if (i2c_debug >= 2)
printk("\n");
}
return num;
- err:
- dprintk2(2," ERROR: %i\n", rc);
+err:
+ dprintk2(2, " ERROR: %i\n", rc);
return rc;
}
@@ -330,7 +339,9 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
return -1;
buf = 0;
- if (1 != (err = i2c_master_send(&dev->i2c_client, &buf, 1))) {
+
+ err = i2c_master_send(&dev->i2c_client, &buf, 1);
+ if (err != 1) {
printk(KERN_INFO "%s: Huh, no eeprom present (err=%d)?\n",
dev->name, err);
return -1;
@@ -403,8 +414,10 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
break;
}
printk(KERN_INFO "Table at 0x%02x, strings=0x%04x, 0x%04x, 0x%04x\n",
- em_eeprom->string_idx_table,em_eeprom->string1,
- em_eeprom->string2,em_eeprom->string3);
+ em_eeprom->string_idx_table,
+ em_eeprom->string1,
+ em_eeprom->string2,
+ em_eeprom->string3);
return 0;
}
@@ -430,58 +443,61 @@ static int attach_inform(struct i2c_client *client)
struct em28xx *dev = client->adapter->algo_data;
switch (client->addr << 1) {
- case 0x86:
- case 0x84:
- case 0x96:
- case 0x94:
- {
- struct v4l2_priv_tun_config tda9887_cfg;
-
- struct tuner_setup tun_setup;
-
- tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
- tun_setup.type = TUNER_TDA9887;
- tun_setup.addr = client->addr;
-
- em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
-
- tda9887_cfg.tuner = TUNER_TDA9887;
- tda9887_cfg.priv = &dev->tda9887_conf;
- em28xx_i2c_call_clients(dev, TUNER_SET_CONFIG,
- &tda9887_cfg);
- break;
- }
- case 0x42:
- dprintk1(1,"attach_inform: saa7114 detected.\n");
- break;
- case 0x4a:
- dprintk1(1,"attach_inform: saa7113 detected.\n");
- break;
- case 0xa0:
- dprintk1(1,"attach_inform: eeprom detected.\n");
- break;
- case 0x60:
- case 0x8e:
- {
- struct IR_i2c *ir = i2c_get_clientdata(client);
- dprintk1(1,"attach_inform: IR detected (%s).\n",ir->phys);
- em28xx_set_ir(dev,ir);
- break;
- }
- case 0x80:
- case 0x88:
- dprintk1(1,"attach_inform: msp34xx detected.\n");
- break;
- case 0xb8:
- case 0xba:
- dprintk1(1,"attach_inform: tvp5150 detected.\n");
- break;
-
- default:
- if (!dev->tuner_addr)
- dev->tuner_addr = client->addr;
-
- dprintk1(1,"attach inform: detected I2C address %x\n", client->addr << 1);
+ case 0x86:
+ case 0x84:
+ case 0x96:
+ case 0x94:
+ {
+ struct v4l2_priv_tun_config tda9887_cfg;
+
+ struct tuner_setup tun_setup;
+
+ tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
+ tun_setup.type = TUNER_TDA9887;
+ tun_setup.addr = client->addr;
+
+ em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR,
+ &tun_setup);
+
+ tda9887_cfg.tuner = TUNER_TDA9887;
+ tda9887_cfg.priv = &dev->tda9887_conf;
+ em28xx_i2c_call_clients(dev, TUNER_SET_CONFIG,
+ &tda9887_cfg);
+ break;
+ }
+ case 0x42:
+ dprintk1(1, "attach_inform: saa7114 detected.\n");
+ break;
+ case 0x4a:
+ dprintk1(1, "attach_inform: saa7113 detected.\n");
+ break;
+ case 0xa0:
+ dprintk1(1, "attach_inform: eeprom detected.\n");
+ break;
+ case 0x60:
+ case 0x8e:
+ {
+ struct IR_i2c *ir = i2c_get_clientdata(client);
+ dprintk1(1, "attach_inform: IR detected (%s).\n",
+ ir->phys);
+ em28xx_set_ir(dev, ir);
+ break;
+ }
+ case 0x80:
+ case 0x88:
+ dprintk1(1, "attach_inform: msp34xx detected.\n");
+ break;
+ case 0xb8:
+ case 0xba:
+ dprintk1(1, "attach_inform: tvp5150 detected.\n");
+ break;
+
+ default:
+ if (!dev->tuner_addr)
+ dev->tuner_addr = client->addr;
+
+ dprintk1(1, "attach inform: detected I2C address %x\n",
+ client->addr << 1);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 12:10:38 +0100