diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 21:15:42 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 21:15:42 -0700 |
commit | 0dd5198672dd2bbeb933862e1fc82162e0b636be (patch) | |
tree | c9efed20d90603c4d1626c21bd7aab1e7fc74a58 /drivers/media/video/ir-kbd-i2c.c | |
parent | c868d550115b9ccc0027c67265b9520790f05601 (diff) | |
parent | 11c635a25b9f3a5d87409ce46cf2e05c500251ec (diff) | |
download | linux-0dd5198672dd2bbeb933862e1fc82162e0b636be.tar.bz2 |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (425 commits)
V4L/DVB (11870): gspca - main: VIDIOC_ENUM_FRAMESIZES ioctl added.
V4L/DVB (12004): poll method lose race condition
V4L/DVB (11894): flexcop-pci: dmesg visible names broken
V4L/DVB (11892): Siano: smsendian - declare function as extern
V4L/DVB (11891): Siano: smscore - bind the GPIO SMS protocol
V4L/DVB (11890): Siano: smscore - remove redundant code
V4L/DVB (11889): Siano: smsdvb - add DVB v3 events
V4L/DVB (11888): Siano: smsusb - remove redundant ifdef
V4L/DVB (11887): Siano: smscards - add board (target) events
V4L/DVB (11886): Siano: smscore - fix some new GPIO definitions names
V4L/DVB (11885): Siano: Add new GPIO management interface
V4L/DVB (11884): Siano: smssdio - revert to stand alone module
V4L/DVB (11883): Siano: cards - add two additional (USB) devices
V4L/DVB (11824): Siano: smsusb - change exit func debug msg
V4L/DVB (11823): Siano: smsusb - fix typo in module description
V4L/DVB (11822): Siano: smscore - bug fix at get_device_mode
V4L/DVB (11821): Siano: smscore - fix isdb-t firmware name
V4L/DVB (11820): Siano: smscore - fix byte ordering bug
V4L/DVB (11819): Siano: smscore - fix get_common_buffer bug
V4L/DVB (11818): Siano: smscards - assign gpio to HPG targets
...
Diffstat (limited to 'drivers/media/video/ir-kbd-i2c.c')
-rw-r--r-- | drivers/media/video/ir-kbd-i2c.c | 222 |
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, +}; /* ----------------------------------------------------------------------- */ |