diff options
Diffstat (limited to 'drivers/media/video/ir-kbd-i2c.c')
| -rw-r--r-- | drivers/media/video/ir-kbd-i2c.c | 483 |
1 files changed, 0 insertions, 483 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c deleted file mode 100644 index 9fc5055e001..00000000000 --- a/drivers/media/video/ir-kbd-i2c.c +++ /dev/null @@ -1,483 +0,0 @@ -/* - * $Id: ir-kbd-i2c.c,v 1.11 2005/07/07 16:42:11 mchehab Exp $ - * - * 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> - * - * 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> - -/* 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 */ - [ 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 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 */ - -static int debug; -module_param(debug, int, 0644); /* debug level (0,1,2) */ - -#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) -{ - 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 *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 *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 *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; -} - -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 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 *ir = (struct IR*)data; - schedule_work(&ir->work); -} - -static void ir_work(void *data) -{ - struct IR *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 = { - .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 = -{ - I2C_DEVNAME("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 *ir; - - if (NULL == (ir = kmalloc(sizeof(struct IR),GFP_KERNEL))) - return -ENOMEM; - memset(ir,0,sizeof(*ir)); - ir->c = client_template; - - i2c_set_clientdata(&ir->c, ir); - ir->c.adapter = adap; - ir->c.addr = addr; - - 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; - 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: - name = "Purple TV"; - ir->get_key = get_key_purpletv; - ir_type = IR_TYPE_OTHER; - ir_codes = ir_codes_purpletv; - break; - default: - /* shouldn't happen */ - printk(DEVNAME ": Huh? unknown i2c address (0x%02x)?\n",addr); - kfree(ir); - return -1; - } - - /* register i2c device */ - i2c_attach_client(&ir->c); - snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (%s)", name); - 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); - 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 *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, -1 }; - const int *probe = NULL; - struct i2c_client c; char buf; int i,rc; - - switch (adap->id) { - case I2C_ALGO_BIT | I2C_HW_B_BT848: - probe = probe_bttv; - break; - case I2C_ALGO_SAA7134: - probe = probe_saa7134; - 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,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); - 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: - */ |
