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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.c498
1 files changed, 0 insertions, 498 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
deleted file mode 100644
index fba30a40e9c..00000000000
--- a/drivers/media/video/ir-kbd-i2c.c
+++ /dev/null
@@ -1,498 +0,0 @@
-/*
- *
- * keyboard input driver for i2c IR remote controls
- *
- * Copyright (c) 2000-2003 Gerd Knorr <kraxel@bytesex.org>
- * modified for PixelView (BT878P+W/FM) by
- * Michal Kochanowicz <mkochano@pld.org.pl>
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#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>
-
-/* ----------------------------------------------------------------------- */
-/* 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_i2c *ir, u32 *ir_key, u32 *ir_raw)
-{
- unsigned char buf[3];
- int start, toggle, dev, code;
-
- /* poll IR chip */
- if (3 != i2c_master_recv(&ir->c,buf,3))
- return -EIO;
-
- /* split rc5 data block ... */
- start = (buf[0] >> 6) & 3;
- toggle = (buf[0] >> 5) & 1;
- dev = buf[0] & 0x1f;
- code = (buf[1] >> 2) & 0x3f;
-
- if (3 != start)
- /* no key pressed */
- return 0;
- dprintk(1,"ir hauppauge (rc5): s%d t%d dev=%d code=%d\n",
- start, toggle, dev, code);
-
- /* return key */
- *ir_key = code;
- *ir_raw = (start << 12) | (toggle << 11) | (dev << 6) | code;
- return 1;
-}
-
-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)) {
- dprintk(1,"read error\n");
- return -EIO;
- }
- *ir_key = b;
- *ir_raw = b;
- return 1;
-}
-
-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)) {
- dprintk(1,"read error\n");
- return -EIO;
- }
-
- /* ignore 0xaa */
- if (b==0xaa)
- return 0;
- dprintk(2,"key %02x\n", b);
-
- *ir_key = b;
- *ir_raw = b;
- return 1;
-}
-
-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)) {
- dprintk(1,"read error\n");
- return -EIO;
- }
-
- /* 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 */
-
- dprintk(2,"key %02x\n", b);
-
- if (b == 0xff)
- return 0;
-
- if (b == 0xfe)
- /* keep old data */
- return 1;
-
- *ir_key = b;
- *ir_raw = b;
- return 1;
-}
-
-/* Common (grey or coloured) pinnacle PCTV remote handling
- *
- */
-static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
- int parity_offset, int marker, int code_modulo)
-{
- unsigned char b[4];
- unsigned int start = 0,parity = 0,code = 0;
-
- /* poll IR chip */
- if (4 != i2c_master_recv(&ir->c,b,4)) {
- dprintk(2,"read error\n");
- return -EIO;
- }
-
- for (start = 0; start<4; start++) {
- if (b[start] == marker) {
- code=b[(start+parity_offset+1)%4];
- parity=b[(start+parity_offset)%4];
- }
- }
-
- /* Empty Request */
- if (parity==0)
- return 0;
-
- /* Repeating... */
- if (ir->old == parity)
- return 0;
-
- ir->old = parity;
-
- /* drop special codes when a key is held down a long time for the grey controller
- In this case, the second bit of the code is asserted */
- if (marker == 0xfe && (code & 0x40))
- return 0;
-
- code %= code_modulo;
-
- *ir_raw = code;
- *ir_key = code;
-
- dprintk(1,"Pinnacle PCTV key %02x\n", code);
-
- return 1;
-}
-
-/* The grey pinnacle PCTV remote
- *
- * There are one issue with this remote:
- * - I2c packet does not change when the same key is pressed quickly. The workaround
- * is to hold down each key for about half a second, so that another code is generated
- * in the i2c packet, and the function can distinguish key presses.
- *
- * Sylvain Pasche <sylvain.pasche@gmail.com>
- */
-int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
-{
-
- return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
-}
-
-EXPORT_SYMBOL_GPL(get_key_pinnacle_grey);
-
-
-/* The new pinnacle PCTV remote (with the colored buttons)
- *
- * Ricardo Cerqueira <v4l@cerqueira.org>
- */
-int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
-{
- /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
- *
- * this is the only value that results in 42 unique
- * codes < 128
- */
-
- return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
-}
-
-EXPORT_SYMBOL_GPL(get_key_pinnacle_color);
-
-/* ----------------------------------------------------------------------- */
-
-static void ir_key_poll(struct IR_i2c *ir)
-{
- static u32 ir_key, ir_raw;
- int rc;
-
- dprintk(2,"ir_poll_key\n");
- rc = ir->get_key(ir, &ir_key, &ir_raw);
- if (rc < 0) {
- dprintk(2,"error\n");
- return;
- }
-
- if (0 == rc) {
- ir_input_nokey(ir->input, &ir->ir);
- } else {
- ir_input_keydown(ir->input, &ir->ir, ir_key, ir_raw);
- }
-}
-
-static void ir_timer(unsigned long data)
-{
- struct IR_i2c *ir = (struct IR_i2c*)data;
- schedule_work(&ir->work);
-}
-
-static void ir_work(void *data)
-{
- struct IR_i2c *ir = data;
- ir_key_poll(ir);
- mod_timer(&ir->timer, jiffies+HZ/10);
-}
-
-/* ----------------------------------------------------------------------- */
-
-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)
-{
- IR_KEYTAB_TYPE *ir_codes = NULL;
- char *name;
- int ir_type;
- struct IR_i2c *ir;
- struct input_dev *input_dev;
-
- 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;
-
- ir->c.adapter = adap;
- ir->c.addr = addr;
-
- i2c_set_clientdata(&ir->c, ir);
-
- switch(addr) {
- case 0x64:
- name = "Pixelview";
- ir->get_key = get_key_pixelview;
- ir_type = IR_TYPE_OTHER;
- ir_codes = ir_codes_empty;
- break;
- case 0x4b:
- name = "PV951";
- ir->get_key = get_key_pv951;
- ir_type = IR_TYPE_OTHER;
- ir_codes = ir_codes_pv951;
- break;
- case 0x18:
- case 0x1a:
- name = "Hauppauge";
- ir->get_key = get_key_haup;
- ir_type = IR_TYPE_RC5;
- if (hauppauge == 1) {
- ir_codes = ir_codes_hauppauge_new;
- } else {
- ir_codes = ir_codes_rc5_tv;
- }
- break;
- case 0x30:
- name = "KNC One";
- ir->get_key = get_key_knc1;
- ir_type = IR_TYPE_OTHER;
- ir_codes = ir_codes_empty;
- break;
- case 0x7a:
- case 0x47:
- /* Handled by saa7134-input */
- name = "SAA713x remote";
- ir_type = IR_TYPE_OTHER;
- break;
- default:
- /* shouldn't happen */
- printk(DEVNAME ": Huh? unknown i2c address (0x%02x)?\n",addr);
- kfree(ir);
- return -1;
- }
-
- /* 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(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);
-
- /* start polling via eventd */
- INIT_WORK(&ir->work, ir_work, ir);
- init_timer(&ir->timer);
- ir->timer.function = ir_timer;
- ir->timer.data = (unsigned long)ir;
- schedule_work(&ir->work);
-
- return 0;
-}
-
-static int ir_detach(struct i2c_client *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);
- 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, -1 };
- static const int probe_em28XX[] = { 0x30, 0x47, -1 };
- const int *probe = NULL;
- struct i2c_client c;
- unsigned char buf;
- 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;
- }
- if (NULL == probe)
- return 0;
-
- memset(&c,0,sizeof(c));
- c.adapter = adap;
- for (i = 0; -1 != probe[i]; i++) {
- c.addr = probe[i];
- rc = i2c_master_recv(&c,&buf,0);
- dprintk(1,"probe 0x%02x @ %s: %s\n",
- probe[i], adap->name,
- (0 == rc) ? "yes" : "no");
- if (0 == rc) {
- ir_attach(adap,probe[i],0,0);
- break;
- }
- }
- return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-MODULE_AUTHOR("Gerd Knorr, Michal Kochanowicz, Christoph Bartelmus, Ulrich Mueller");
-MODULE_DESCRIPTION("input driver for i2c IR remote controls");
-MODULE_LICENSE("GPL");
-
-static int __init ir_init(void)
-{
- return i2c_add_driver(&driver);
-}
-
-static void __exit ir_fini(void)
-{
- i2c_del_driver(&driver);
-}
-
-module_init(ir_init);
-module_exit(ir_fini);
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
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