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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.c166
1 files changed, 58 insertions, 108 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
index 9703d3d351f9..0085567a1421 100644
--- a/drivers/media/video/ir-kbd-i2c.c
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -8,6 +8,8 @@
* Christoph Bartelmus <lirc@bartelmus.de>
* modified for KNC ONE TV Station/Anubis Typhoon TView Tuner by
* Ulrich Mueller <ulrich.mueller42@web.de>
+ * modified for em2820 based USB TV tuners by
+ * Markus Rechberger <mrechberger@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -37,10 +39,9 @@
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
-
#include <asm/semaphore.h>
-
#include <media/ir-common.h>
+#include <media/ir-kbd-i2c.h>
/* Mark Phalan <phalanm@o2.ie> */
static IR_KEYTAB_TYPE ir_codes_pv951[IR_KEYTAB_SIZE] = {
@@ -81,57 +82,6 @@ static IR_KEYTAB_TYPE ir_codes_pv951[IR_KEYTAB_SIZE] = {
[ 28 ] = KEY_MEDIA, /* PC/TV */
};
-static IR_KEYTAB_TYPE ir_codes_purpletv[IR_KEYTAB_SIZE] = {
- [ 0x3 ] = KEY_POWER,
- [ 0x6f ] = KEY_MUTE,
- [ 0x10 ] = KEY_BACKSPACE, /* Recall */
-
- [ 0x11 ] = KEY_KP0,
- [ 0x4 ] = KEY_KP1,
- [ 0x5 ] = KEY_KP2,
- [ 0x6 ] = KEY_KP3,
- [ 0x8 ] = KEY_KP4,
- [ 0x9 ] = KEY_KP5,
- [ 0xa ] = KEY_KP6,
- [ 0xc ] = KEY_KP7,
- [ 0xd ] = KEY_KP8,
- [ 0xe ] = KEY_KP9,
- [ 0x12 ] = KEY_KPDOT, /* 100+ */
-
- [ 0x7 ] = KEY_VOLUMEUP,
- [ 0xb ] = KEY_VOLUMEDOWN,
- [ 0x1a ] = KEY_KPPLUS,
- [ 0x18 ] = KEY_KPMINUS,
- [ 0x15 ] = KEY_UP,
- [ 0x1d ] = KEY_DOWN,
- [ 0xf ] = KEY_CHANNELUP,
- [ 0x13 ] = KEY_CHANNELDOWN,
- [ 0x48 ] = KEY_ZOOM,
-
- [ 0x1b ] = KEY_VIDEO, /* Video source */
- [ 0x49 ] = KEY_LANGUAGE, /* MTS Select */
- [ 0x19 ] = KEY_SEARCH, /* Auto Scan */
-
- [ 0x4b ] = KEY_RECORD,
- [ 0x46 ] = KEY_PLAY,
- [ 0x45 ] = KEY_PAUSE, /* Pause */
- [ 0x44 ] = KEY_STOP,
- [ 0x40 ] = KEY_FORWARD, /* Forward ? */
- [ 0x42 ] = KEY_REWIND, /* Backward ? */
-
-};
-
-struct IR {
- struct i2c_client c;
- struct input_dev *input;
- struct ir_input_state ir;
-
- struct work_struct work;
- struct timer_list timer;
- char phys[32];
- int (*get_key)(struct IR*, u32*, u32*);
-};
-
/* ----------------------------------------------------------------------- */
/* insmod parameters */
@@ -144,7 +94,7 @@ module_param(debug, int, 0644); /* debug level (0,1,2) */
/* ----------------------------------------------------------------------- */
-static int get_key_haup(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char buf[3];
int start, toggle, dev, code;
@@ -171,9 +121,9 @@ static int get_key_haup(struct IR *ir, u32 *ir_key, u32 *ir_raw)
return 1;
}
-static int get_key_pixelview(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+static int get_key_pixelview(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
- unsigned char b;
+ unsigned char b;
/* poll IR chip */
if (1 != i2c_master_recv(&ir->c,&b,1)) {
@@ -185,9 +135,9 @@ static int get_key_pixelview(struct IR *ir, u32 *ir_key, u32 *ir_raw)
return 1;
}
-static int get_key_pv951(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
- unsigned char b;
+ unsigned char b;
/* poll IR chip */
if (1 != i2c_master_recv(&ir->c,&b,1)) {
@@ -205,7 +155,7 @@ static int get_key_pv951(struct IR *ir, u32 *ir_key, u32 *ir_raw)
return 1;
}
-static int get_key_knc1(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
unsigned char b;
@@ -216,15 +166,15 @@ static int get_key_knc1(struct IR *ir, u32 *ir_key, u32 *ir_raw)
}
/* it seems that 0xFE indicates that a button is still hold
- down, while 0xFF indicates that no button is hold
- down. 0xFE sequences are sometimes interrupted by 0xFF */
+ down, while 0xff indicates that no button is hold
+ down. 0xfe sequences are sometimes interrupted by 0xFF */
dprintk(2,"key %02x\n", b);
- if (b == 0xFF)
+ if (b == 0xff)
return 0;
- if (b == 0xFE)
+ if (b == 0xfe)
/* keep old data */
return 1;
@@ -233,31 +183,9 @@ static int get_key_knc1(struct IR *ir, u32 *ir_key, u32 *ir_raw)
return 1;
}
-static int get_key_purpletv(struct IR *ir, u32 *ir_key, u32 *ir_raw)
-{
- unsigned char b;
-
- /* poll IR chip */
- if (1 != i2c_master_recv(&ir->c,&b,1)) {
- dprintk(1,"read error\n");
- return -EIO;
- }
-
- /* no button press */
- if (b==0)
- return 0;
-
- /* repeating */
- if (b & 0x80)
- return 1;
-
- *ir_key = b;
- *ir_raw = b;
- return 1;
-}
/* ----------------------------------------------------------------------- */
-static void ir_key_poll(struct IR *ir)
+static void ir_key_poll(struct IR_i2c *ir)
{
static u32 ir_key, ir_raw;
int rc;
@@ -278,13 +206,13 @@ static void ir_key_poll(struct IR *ir)
static void ir_timer(unsigned long data)
{
- struct IR *ir = (struct IR*)data;
+ struct IR_i2c *ir = (struct IR_i2c*)data;
schedule_work(&ir->work);
}
static void ir_work(void *data)
{
- struct IR *ir = data;
+ struct IR_i2c *ir = data;
ir_key_poll(ir);
mod_timer(&ir->timer, jiffies+HZ/10);
}
@@ -297,17 +225,17 @@ static int ir_detach(struct i2c_client *client);
static int ir_probe(struct i2c_adapter *adap);
static struct i2c_driver driver = {
- .name = "ir remote kbd driver",
- .id = I2C_DRIVERID_EXP3, /* FIXME */
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = ir_probe,
- .detach_client = ir_detach,
+ .name = "ir remote kbd driver",
+ .id = I2C_DRIVERID_EXP3, /* FIXME */
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = ir_probe,
+ .detach_client = ir_detach,
};
static struct i2c_client client_template =
{
- .name = "unset",
- .driver = &driver
+ .name = "unset",
+ .driver = &driver
};
static int ir_attach(struct i2c_adapter *adap, int addr,
@@ -316,10 +244,10 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
IR_KEYTAB_TYPE *ir_codes = NULL;
char *name;
int ir_type;
- struct IR *ir;
+ struct IR_i2c *ir;
struct input_dev *input_dev;
- ir = kzalloc(sizeof(struct IR), GFP_KERNEL);
+ ir = kzalloc(sizeof(struct IR_i2c), GFP_KERNEL);
input_dev = input_allocate_device();
if (!ir || !input_dev) {
kfree(ir);
@@ -361,10 +289,10 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
ir_codes = ir_codes_empty;
break;
case 0x7a:
- name = "Purple TV";
- ir->get_key = get_key_purpletv;
+ case 0x47:
+ /* Handled by saa7134-input */
+ name = "SAA713x remote";
ir_type = IR_TYPE_OTHER;
- ir_codes = ir_codes_purpletv;
break;
default:
/* shouldn't happen */
@@ -373,9 +301,24 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
return -1;
}
- /* register i2c device */
- i2c_attach_client(&ir->c);
+ /* Sets name */
snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (%s)", name);
+ ir->ir_codes=ir_codes;
+
+ /* register i2c device
+ * At device register, IR codes may be changed to be
+ * board dependent.
+ */
+ i2c_attach_client(&ir->c);
+
+ /* If IR not supported or disabled, unregisters driver */
+ if (ir->get_key == NULL) {
+ i2c_detach_client(&ir->c);
+ kfree(ir);
+ return -1;
+ }
+
+ /* Phys addr can only be set after attaching (for ir->c.dev.bus_id) */
snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0",
ir->c.adapter->dev.bus_id,
ir->c.dev.bus_id);
@@ -386,6 +329,7 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
input_dev->name = ir->c.name;
input_dev->phys = ir->phys;
+ /* register event device */
input_register_device(ir->input);
/* start polling via eventd */
@@ -400,7 +344,7 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
static int ir_detach(struct i2c_client *client)
{
- struct IR *ir = i2c_get_clientdata(client);
+ struct IR_i2c *ir = i2c_get_clientdata(client);
/* kill outstanding polls */
del_timer(&ir->timer);
@@ -428,9 +372,12 @@ static int ir_probe(struct i2c_adapter *adap)
*/
static const int probe_bttv[] = { 0x1a, 0x18, 0x4b, 0x64, 0x30, -1};
- static const int probe_saa7134[] = { 0x7a, -1 };
+ static const int probe_saa7134[] = { 0x7a, 0x47, -1 };
+ static const int probe_em28XX[] = { 0x30, 0x47, -1 };
const int *probe = NULL;
- struct i2c_client c; char buf; int i,rc;
+ struct i2c_client c;
+ unsigned char buf;
+ int i,rc;
switch (adap->id) {
case I2C_HW_B_BT848:
@@ -439,6 +386,9 @@ static int ir_probe(struct i2c_adapter *adap)
case I2C_HW_SAA7134:
probe = probe_saa7134;
break;
+ case I2C_HW_B_EM28XX:
+ probe = probe_em28XX;
+ break;
}
if (NULL == probe)
return 0;
@@ -447,11 +397,11 @@ static int ir_probe(struct i2c_adapter *adap)
c.adapter = adap;
for (i = 0; -1 != probe[i]; i++) {
c.addr = probe[i];
- rc = i2c_master_recv(&c,&buf,1);
+ rc = i2c_master_recv(&c,&buf,0);
dprintk(1,"probe 0x%02x @ %s: %s\n",
probe[i], adap->name,
- (1 == rc) ? "yes" : "no");
- if (1 == rc) {
+ (0 == rc) ? "yes" : "no");
+ if (0 == rc) {
ir_attach(adap,probe[i],0,0);
break;
}
generated by cgit (git 2.34.1) at 2024-06-14 07:43:19 +0000