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path: root/drivers/media/video/ir-kbd-i2c.c
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Diffstat (limited to 'drivers/media/video/ir-kbd-i2c.c')
-rw-r--r--drivers/media/video/ir-kbd-i2c.c222
1 files changed, 54 insertions, 168 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
index 092c7da0f37a..86f2fefe1edf 100644
--- a/drivers/media/video/ir-kbd-i2c.c
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -74,7 +74,7 @@ static int get_key_haup_common(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
int start, range, toggle, dev, code, ircode;
/* poll IR chip */
- if (size != i2c_master_recv(&ir->c,buf,size))
+ if (size != i2c_master_recv(ir->c, buf, size))
return -EIO;
/* split rc5 data block ... */
@@ -137,7 +137,7 @@ static int get_key_pixelview(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
unsigned char b;
/* poll IR chip */
- if (1 != i2c_master_recv(&ir->c,&b,1)) {
+ if (1 != i2c_master_recv(ir->c, &b, 1)) {
dprintk(1,"read error\n");
return -EIO;
}
@@ -151,7 +151,7 @@ static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
unsigned char b;
/* poll IR chip */
- if (1 != i2c_master_recv(&ir->c,&b,1)) {
+ if (1 != i2c_master_recv(ir->c, &b, 1)) {
dprintk(1,"read error\n");
return -EIO;
}
@@ -171,7 +171,7 @@ static int get_key_fusionhdtv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
unsigned char buf[4];
/* poll IR chip */
- if (4 != i2c_master_recv(&ir->c,buf,4)) {
+ if (4 != i2c_master_recv(ir->c, buf, 4)) {
dprintk(1,"read error\n");
return -EIO;
}
@@ -195,7 +195,7 @@ static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
unsigned char b;
/* poll IR chip */
- if (1 != i2c_master_recv(&ir->c,&b,1)) {
+ if (1 != i2c_master_recv(ir->c, &b, 1)) {
dprintk(1,"read error\n");
return -EIO;
}
@@ -222,12 +222,12 @@ static int get_key_avermedia_cardbus(struct IR_i2c *ir,
u32 *ir_key, u32 *ir_raw)
{
unsigned char subaddr, key, keygroup;
- struct i2c_msg msg[] = { { .addr = ir->c.addr, .flags = 0,
+ struct i2c_msg msg[] = { { .addr = ir->c->addr, .flags = 0,
.buf = &subaddr, .len = 1},
- { .addr = ir->c.addr, .flags = I2C_M_RD,
+ { .addr = ir->c->addr, .flags = I2C_M_RD,
.buf = &key, .len = 1} };
subaddr = 0x0d;
- if (2 != i2c_transfer(ir->c.adapter, msg, 2)) {
+ if (2 != i2c_transfer(ir->c->adapter, msg, 2)) {
dprintk(1, "read error\n");
return -EIO;
}
@@ -237,7 +237,7 @@ static int get_key_avermedia_cardbus(struct IR_i2c *ir,
subaddr = 0x0b;
msg[1].buf = &keygroup;
- if (2 != i2c_transfer(ir->c.adapter, msg, 2)) {
+ if (2 != i2c_transfer(ir->c->adapter, msg, 2)) {
dprintk(1, "read error\n");
return -EIO;
}
@@ -286,7 +286,7 @@ static void ir_work(struct work_struct *work)
/* MSI TV@nywhere Plus requires more frequent polling
otherwise it will miss some keypresses */
- if (ir->c.adapter->id == I2C_HW_SAA7134 && ir->c.addr == 0x30)
+ if (ir->c->adapter->id == I2C_HW_SAA7134 && ir->c->addr == 0x30)
polling_interval = 50;
ir_key_poll(ir);
@@ -295,34 +295,15 @@ static void ir_work(struct work_struct *work)
/* ----------------------------------------------------------------------- */
-static int ir_attach(struct i2c_adapter *adap, int addr,
- unsigned short flags, int kind);
-static int ir_detach(struct i2c_client *client);
-static int ir_probe(struct i2c_adapter *adap);
-
-static struct i2c_driver driver = {
- .driver = {
- .name = "ir-kbd-i2c",
- },
- .id = I2C_DRIVERID_INFRARED,
- .attach_adapter = ir_probe,
- .detach_client = ir_detach,
-};
-
-static struct i2c_client client_template =
-{
- .name = "unset",
- .driver = &driver
-};
-
-static int ir_attach(struct i2c_adapter *adap, int addr,
- unsigned short flags, int kind)
+static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
IR_KEYTAB_TYPE *ir_codes = NULL;
- char *name;
+ const char *name = NULL;
int ir_type;
struct IR_i2c *ir;
struct input_dev *input_dev;
+ struct i2c_adapter *adap = client->adapter;
+ unsigned short addr = client->addr;
int err;
ir = kzalloc(sizeof(struct IR_i2c),GFP_KERNEL);
@@ -332,13 +313,9 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
goto err_out_free;
}
- ir->c = client_template;
+ ir->c = client;
ir->input = input_dev;
-
- ir->c.adapter = adap;
- ir->c.addr = addr;
-
- i2c_set_clientdata(&ir->c, ir);
+ i2c_set_clientdata(client, ir);
switch(addr) {
case 0x64:
@@ -403,44 +380,46 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
ir_codes = ir_codes_avermedia_cardbus;
break;
default:
- /* shouldn't happen */
- printk(DEVNAME ": Huh? unknown i2c address (0x%02x)?\n", addr);
+ dprintk(1, DEVNAME ": Unsupported i2c address 0x%02x\n", addr);
err = -ENODEV;
goto err_out_free;
}
- /* Sets name */
- snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (%s)", name);
- ir->ir_codes = ir_codes;
+ /* Let the caller override settings */
+ if (client->dev.platform_data) {
+ const struct IR_i2c_init_data *init_data =
+ client->dev.platform_data;
- /* register i2c device
- * At device register, IR codes may be changed to be
- * board dependent.
- */
- err = i2c_attach_client(&ir->c);
- if (err)
- goto err_out_free;
+ ir_codes = init_data->ir_codes;
+ name = init_data->name;
+ ir->get_key = init_data->get_key;
+ }
- /* If IR not supported or disabled, unregisters driver */
- if (ir->get_key == NULL) {
+ /* Make sure we are all setup before going on */
+ if (!name || !ir->get_key || !ir_codes) {
+ dprintk(1, DEVNAME ": Unsupported device at address 0x%02x\n",
+ addr);
err = -ENODEV;
- goto err_out_detach;
+ goto err_out_free;
}
- /* Phys addr can only be set after attaching (for ir->c.dev) */
+ /* Sets name */
+ snprintf(ir->name, sizeof(ir->name), "i2c IR (%s)", name);
+ ir->ir_codes = ir_codes;
+
snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0",
- dev_name(&ir->c.adapter->dev),
- dev_name(&ir->c.dev));
+ dev_name(&adap->dev),
+ dev_name(&client->dev));
/* init + register input device */
ir_input_init(input_dev, &ir->ir, ir_type, ir->ir_codes);
input_dev->id.bustype = BUS_I2C;
- input_dev->name = ir->c.name;
+ input_dev->name = ir->name;
input_dev->phys = ir->phys;
err = input_register_device(ir->input);
if (err)
- goto err_out_detach;
+ goto err_out_free;
printk(DEVNAME ": %s detected at %s [%s]\n",
ir->input->name, ir->input->phys, adap->name);
@@ -451,135 +430,42 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
return 0;
- err_out_detach:
- i2c_detach_client(&ir->c);
err_out_free:
input_free_device(input_dev);
kfree(ir);
return err;
}
-static int ir_detach(struct i2c_client *client)
+static int ir_remove(struct i2c_client *client)
{
struct IR_i2c *ir = i2c_get_clientdata(client);
/* kill outstanding polls */
cancel_delayed_work_sync(&ir->work);
- /* unregister devices */
+ /* unregister device */
input_unregister_device(ir->input);
- i2c_detach_client(&ir->c);
/* free memory */
kfree(ir);
return 0;
}
-static int ir_probe(struct i2c_adapter *adap)
-{
-
- /* The external IR receiver is at i2c address 0x34 (0x35 for
- reads). Future Hauppauge cards will have an internal
- receiver at 0x30 (0x31 for reads). In theory, both can be
- fitted, and Hauppauge suggest an external overrides an
- internal.
-
- That's why we probe 0x1a (~0x34) first. CB
- */
-
- static const int probe_bttv[] = { 0x1a, 0x18, 0x4b, 0x64, 0x30, -1};
- static const int probe_saa7134[] = { 0x7a, 0x47, 0x71, 0x2d, -1 };
- static const int probe_em28XX[] = { 0x30, 0x47, -1 };
- static const int probe_cx88[] = { 0x18, 0x6b, 0x71, -1 };
- static const int probe_cx23885[] = { 0x6b, -1 };
- const int *probe;
- struct i2c_msg msg = {
- .flags = I2C_M_RD,
- .len = 0,
- .buf = NULL,
- };
- int i, rc;
-
- switch (adap->id) {
- case I2C_HW_B_BT848:
- probe = probe_bttv;
- break;
- case I2C_HW_B_CX2341X:
- probe = probe_bttv;
- break;
- case I2C_HW_SAA7134:
- probe = probe_saa7134;
- break;
- case I2C_HW_B_EM28XX:
- probe = probe_em28XX;
- break;
- case I2C_HW_B_CX2388x:
- probe = probe_cx88;
- break;
- case I2C_HW_B_CX23885:
- probe = probe_cx23885;
- break;
- default:
- return 0;
- }
-
- for (i = 0; -1 != probe[i]; i++) {
- msg.addr = probe[i];
- rc = i2c_transfer(adap, &msg, 1);
- dprintk(1,"probe 0x%02x @ %s: %s\n",
- probe[i], adap->name,
- (1 == rc) ? "yes" : "no");
- if (1 == rc) {
- ir_attach(adap, probe[i], 0, 0);
- return 0;
- }
- }
-
- /* Special case for MSI TV@nywhere Plus remote */
- if (adap->id == I2C_HW_SAA7134) {
- u8 temp;
-
- /* MSI TV@nywhere Plus controller doesn't seem to
- respond to probes unless we read something from
- an existing device. Weird... */
-
- msg.addr = 0x50;
- rc = i2c_transfer(adap, &msg, 1);
- dprintk(1, "probe 0x%02x @ %s: %s\n",
- msg.addr, adap->name,
- (1 == rc) ? "yes" : "no");
-
- /* Now do the probe. The controller does not respond
- to 0-byte reads, so we use a 1-byte read instead. */
- msg.addr = 0x30;
- msg.len = 1;
- msg.buf = &temp;
- rc = i2c_transfer(adap, &msg, 1);
- dprintk(1, "probe 0x%02x @ %s: %s\n",
- msg.addr, adap->name,
- (1 == rc) ? "yes" : "no");
- if (1 == rc)
- ir_attach(adap, msg.addr, 0, 0);
- }
-
- /* Special case for AVerMedia Cardbus remote */
- if (adap->id == I2C_HW_SAA7134) {
- unsigned char subaddr, data;
- struct i2c_msg msg[] = { { .addr = 0x40, .flags = 0,
- .buf = &subaddr, .len = 1},
- { .addr = 0x40, .flags = I2C_M_RD,
- .buf = &data, .len = 1} };
- subaddr = 0x0d;
- rc = i2c_transfer(adap, msg, 2);
- dprintk(1, "probe 0x%02x/0x%02x @ %s: %s\n",
- msg[0].addr, subaddr, adap->name,
- (2 == rc) ? "yes" : "no");
- if (2 == rc)
- ir_attach(adap, msg[0].addr, 0, 0);
- }
+static const struct i2c_device_id ir_kbd_id[] = {
+ /* Generic entry for any IR receiver */
+ { "ir_video", 0 },
+ /* IR device specific entries could be added here */
+ { }
+};
- return 0;
-}
+static struct i2c_driver driver = {
+ .driver = {
+ .name = "ir-kbd-i2c",
+ },
+ .probe = ir_probe,
+ .remove = ir_remove,
+ .id_table = ir_kbd_id,
+};
/* ----------------------------------------------------------------------- */