/*
- * $Id: ir-kbd-i2c.c,v 1.10 2004/12/09 12:51:35 kraxel Exp $
*
* keyboard input driver for i2c IR remote controls
*
* 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
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
-
#include <asm/semaphore.h>
#include <media/ir-common.h>
-
-/* Mark Phalan <phalanm@o2.ie> */
-static IR_KEYTAB_TYPE ir_codes_pv951[IR_KEYTAB_SIZE] = {
- [ 0 ] = KEY_KP0,
- [ 1 ] = KEY_KP1,
- [ 2 ] = KEY_KP2,
- [ 3 ] = KEY_KP3,
- [ 4 ] = KEY_KP4,
- [ 5 ] = KEY_KP5,
- [ 6 ] = KEY_KP6,
- [ 7 ] = KEY_KP7,
- [ 8 ] = KEY_KP8,
- [ 9 ] = KEY_KP9,
-
- [ 18 ] = KEY_POWER,
- [ 16 ] = KEY_MUTE,
- [ 31 ] = KEY_VOLUMEDOWN,
- [ 27 ] = KEY_VOLUMEUP,
- [ 26 ] = KEY_CHANNELUP,
- [ 30 ] = KEY_CHANNELDOWN,
- [ 14 ] = KEY_PAGEUP,
- [ 29 ] = KEY_PAGEDOWN,
- [ 19 ] = KEY_SOUND,
-
- [ 24 ] = KEY_KPPLUSMINUS, // CH +/-
- [ 22 ] = KEY_SUBTITLE, // CC
- [ 13 ] = KEY_TEXT, // TTX
- [ 11 ] = KEY_TV, // AIR/CBL
- [ 17 ] = KEY_PC, // PC/TV
- [ 23 ] = KEY_OK, // CH RTN
- [ 25 ] = KEY_MODE, // FUNC
- [ 12 ] = KEY_SEARCH, // AUTOSCAN
-
- /* Not sure what to do with these ones! */
- [ 15 ] = KEY_SELECT, // SOURCE
- [ 10 ] = KEY_KPPLUS, // +100
- [ 20 ] = KEY_KPEQUAL, // SYNC
- [ 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
-#if 0
- [ 0x1f ] = KEY_S, // Snapshot
-#endif
- [ 0x49 ] = KEY_LANGUAGE, // MTS Select
- [ 0x19 ] = KEY_SEARCH, // Auto Scan
-
- [ 0x4b ] = KEY_RECORD,
- [ 0x46 ] = KEY_PLAY,
- [ 0x45 ] = KEY_PAUSE, // Pause
- [ 0x44 ] = KEY_STOP,
-#if 0
- [ 0x43 ] = KEY_T, // Time Shift
- [ 0x47 ] = KEY_Y, // Time Shift OFF
- [ 0x4a ] = KEY_O, // TOP
- [ 0x17 ] = KEY_F, // SURF CH
-#endif
- [ 0x40 ] = KEY_FORWARD, // Forward ?
- [ 0x42 ] = KEY_REWIND, // Backward ?
-
-};
-
-struct IR;
-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*);
-};
+#include <media/ir-kbd-i2c.h>
/* ----------------------------------------------------------------------- */
/* insmod parameters */
static int debug;
module_param(debug, int, 0644); /* debug level (0,1,2) */
+static int hauppauge = 0;
+module_param(hauppauge, int, 0644); /* Choose Hauppauge remote */
+MODULE_PARM_DESC(hauppauge, "Specify Hauppauge remote: 0=black, 1=grey (defaults to 0)");
+
+
#define DEVNAME "ir-kbd-i2c"
#define dprintk(level, fmt, arg...) if (debug >= level) \
printk(KERN_DEBUG DEVNAME ": " fmt , ## arg)
/* ----------------------------------------------------------------------- */
-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;
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)) {
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)) {
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;
}
/* 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;
return 1;
}
-static int get_key_purpletv(struct IR *ir, u32 *ir_key, u32 *ir_raw)
+/* The new pinnacle PCTV remote (with the colored buttons)
+ *
+ * Ricardo Cerqueira <v4l@cerqueira.org>
+ */
+
+int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
- unsigned char b;
+ unsigned char b[4];
+ unsigned int start = 0,parity = 0,code = 0;
/* poll IR chip */
- if (1 != i2c_master_recv(&ir->c,&b,1)) {
- dprintk(1,"read error\n");
+ if (4 != i2c_master_recv(&ir->c,b,4)) {
+ dprintk(2,"read error\n");
return -EIO;
}
- /* no button press */
- if (b==0)
+ for (start = 0; start<4; start++) {
+ if (b[start] == 0x80) {
+ code=b[(start+3)%4];
+ parity=b[(start+2)%4];
+ }
+ }
+
+ /* Empty Request */
+ if (parity==0)
return 0;
- /* repeating */
- if (b & 0x80)
- return 1;
+ /* Repeating... */
+ if (ir->old == parity)
+ return 0;
+
+
+ ir->old = parity;
+
+ /* Reduce code value to fit inside IR_KEYTAB_SIZE
+ *
+ * this is the only value that results in 42 unique
+ * codes < 128
+ */
+
+ code %= 0x88;
+
+ *ir_raw = code;
+ *ir_key = code;
+
+ dprintk(1,"Pinnacle PCTV key %02x\n", code);
- *ir_key = b;
- *ir_raw = b;
return 1;
}
+
+EXPORT_SYMBOL_GPL(get_key_pinnacle);
+
/* ----------------------------------------------------------------------- */
-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;
}
if (0 == rc) {
- ir_input_nokey(&ir->input,&ir->ir);
+ ir_input_nokey(ir->input, &ir->ir);
} else {
- ir_input_keydown(&ir->input,&ir->ir, ir_key, ir_raw);
+ ir_input_keydown(ir->input, &ir->ir, ir_key, ir_raw);
}
}
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);
}
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,
+ .driver = {
+ .name = "ir-kbd-i2c",
+ },
+ .id = I2C_DRIVERID_INFRARED,
+ .attach_adapter = ir_probe,
+ .detach_client = ir_detach,
};
static struct i2c_client client_template =
{
- I2C_DEVNAME("unset"),
- .driver = &driver
+ .name = "unset",
+ .driver = &driver
};
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;
- if (NULL == (ir = kmalloc(sizeof(struct IR),GFP_KERNEL)))
- return -ENOMEM;
+ ir = kzalloc(sizeof(struct IR_i2c),GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ir || !input_dev) {
+ input_free_device(input_dev);
+ kfree(ir);
+ return -ENOMEM;
+ }
memset(ir,0,sizeof(*ir));
+
ir->c = client_template;
+ ir->input = input_dev;
- i2c_set_clientdata(&ir->c, ir);
ir->c.adapter = adap;
ir->c.addr = addr;
+ i2c_set_clientdata(&ir->c, ir);
+
switch(addr) {
case 0x64:
name = "Pixelview";
name = "Hauppauge";
ir->get_key = get_key_haup;
ir_type = IR_TYPE_RC5;
- ir_codes = ir_codes_rc5_tv;
+ if (hauppauge == 1) {
+ ir_codes = ir_codes_hauppauge_new;
+ } else {
+ ir_codes = ir_codes_rc5_tv;
+ }
break;
case 0x30:
name = "KNC One";
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 */
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);
/* init + register input device */
- ir_input_init(&ir->input,&ir->ir,ir_type,ir_codes);
- ir->input.id.bustype = BUS_I2C;
- ir->input.name = ir->c.name;
- ir->input.phys = ir->phys;
- input_register_device(&ir->input);
+ 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->phys = ir->phys;
+
+ /* register event device */
+ input_register_device(ir->input);
printk(DEVNAME ": %s detected at %s [%s]\n",
- ir->input.name,ir->input.phys,adap->name);
+ ir->input->name,ir->input->phys,adap->name);
/* start polling via eventd */
INIT_WORK(&ir->work, ir_work, ir);
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);
flush_scheduled_work();
/* unregister devices */
- input_unregister_device(&ir->input);
+ input_unregister_device(ir->input);
i2c_detach_client(&ir->c);
/* free memory */
*/
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_ALGO_BIT | I2C_HW_B_BT848:
+ case I2C_HW_B_BT848:
probe = probe_bttv;
break;
- case I2C_ALGO_SAA7134:
+ 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;
}
if (NULL == probe)
return 0;
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;
}
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