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[PATCH] v4l: 784: several improvement on i2c ir handling for em2820
- Several Improvement on I2C IR handling for em2820:
- moved Pinnacle IR table (ir_codes_em2820) to em2820-input.c
- IR struct renamed and moved to a header file.
- New file to handle em2820-specific IR.
- Some cleanups.
- attach now detects I2C IR and calls em2820-specific IR code
- IR compat code moved to compat.h
- New header with struct IR_i2c there, to allow it to be
used by board-specific input handlers.
- Some improvements at em28xx board detection:
- Board detection message improved to show interface and class.
- Now it doesn't touch audio interfaces.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>- Loading branch information
Mauro Carvalho Chehab
authored and
Linus Torvalds
committed
Nov 9, 2005
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| /* | ||
| * | ||
| * handle saa7134 IR remotes via linux kernel input layer. | ||
| * | ||
| * 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/delay.h> | ||
| #include <linux/sched.h> | ||
| #include <linux/interrupt.h> | ||
| #include <linux/input.h> | ||
| #include <linux/usb.h> | ||
|
|
||
| #include "em2820.h" | ||
|
|
||
| static unsigned int disable_ir = 0; | ||
| module_param(disable_ir, int, 0444); | ||
| MODULE_PARM_DESC(disable_ir,"disable infrared remote support"); | ||
|
|
||
| static unsigned int ir_debug = 0; | ||
| module_param(ir_debug, int, 0644); | ||
| MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]"); | ||
|
|
||
| #define dprintk(fmt, arg...) if (ir_debug) \ | ||
| printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg) | ||
|
|
||
| /* ---------------------------------------------------------------------- */ | ||
|
|
||
| static IR_KEYTAB_TYPE ir_codes_em_pinnacle[IR_KEYTAB_SIZE] = { | ||
| [ 0 ] = KEY_CHANNEL, | ||
| [ 1 ] = KEY_SELECT, | ||
| [ 2 ] = KEY_MUTE, | ||
| [ 3 ] = KEY_POWER, | ||
| [ 4 ] = KEY_KP1, | ||
| [ 5 ] = KEY_KP2, | ||
| [ 6 ] = KEY_KP3, | ||
| [ 7 ] = KEY_CHANNELUP, | ||
| [ 8 ] = KEY_KP4, | ||
| [ 9 ] = KEY_KP5, | ||
| [ 10 ] = KEY_KP6, | ||
|
|
||
| [ 11 ] = KEY_CHANNELDOWN, | ||
| [ 12 ] = KEY_KP7, | ||
| [ 13 ] = KEY_KP8, | ||
| [ 14 ] = KEY_KP9, | ||
| [ 15 ] = KEY_VOLUMEUP, | ||
| [ 16 ] = KEY_KP0, | ||
| [ 17 ] = KEY_MENU, | ||
| [ 18 ] = KEY_PRINT, | ||
|
|
||
| [ 19 ] = KEY_VOLUMEDOWN, | ||
| [ 21 ] = KEY_PAUSE, | ||
| [ 23 ] = KEY_RECORD, | ||
| [ 24 ] = KEY_REWIND, | ||
| [ 25 ] = KEY_PLAY, | ||
| [ 27 ] = KEY_BACKSPACE, | ||
| [ 29 ] = KEY_STOP, | ||
| [ 31 ] = KEY_ZOOM, | ||
| }; | ||
|
|
||
| /* ----------------------------------------------------------------------- */ | ||
|
|
||
| static int get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) | ||
| { | ||
| unsigned char buf[2]; | ||
| unsigned char code; | ||
|
|
||
| /* poll IR chip */ | ||
| if (2 != i2c_master_recv(&ir->c,buf,2)) | ||
| return -EIO; | ||
|
|
||
| /* Does eliminate repeated parity code */ | ||
| if (buf[1]==0xff) | ||
| return 0; | ||
|
|
||
| /* avoid fast reapeating */ | ||
| if (buf[1]==ir->old) | ||
| return 0; | ||
| ir->old=buf[1]; | ||
|
|
||
| /* Rearranges bits to the right order */ | ||
| code= ((buf[0]&0x01)<<5) | /* 0010 0000 */ | ||
| ((buf[0]&0x02)<<3) | /* 0001 0000 */ | ||
| ((buf[0]&0x04)<<1) | /* 0000 1000 */ | ||
| ((buf[0]&0x08)>>1) | /* 0000 0100 */ | ||
| ((buf[0]&0x10)>>3) | /* 0000 0010 */ | ||
| ((buf[0]&0x20)>>5); /* 0000 0001 */ | ||
|
|
||
| dprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x)\n",code,buf[0]); | ||
|
|
||
| /* return key */ | ||
| *ir_key = code; | ||
| *ir_raw = code; | ||
| return 1; | ||
| } | ||
|
|
||
| /* ----------------------------------------------------------------------- */ | ||
| void em2820_set_ir(struct em2820 * dev,struct IR_i2c *ir) | ||
| { | ||
| if (disable_ir) | ||
| return ; | ||
|
|
||
| /* detect & configure */ | ||
| switch (dev->model) { | ||
| case (EM2800_BOARD_UNKNOWN): | ||
| break; | ||
| case (EM2820_BOARD_UNKNOWN): | ||
| break; | ||
| case (EM2820_BOARD_TERRATEC_CINERGY_250): | ||
| break; | ||
| case (EM2820_BOARD_PINNACLE_USB_2): | ||
| ir->ir_codes = ir_codes_em_pinnacle; | ||
| break; | ||
| case (EM2820_BOARD_HAUPPAUGE_WINTV_USB_2): | ||
| ir->ir_codes = ir_codes_hauppauge_new; | ||
| ir->get_key = get_key_em_haup; | ||
| snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (EM2840 Hauppage)"); | ||
| break; | ||
| case (EM2820_BOARD_MSI_VOX_USB_2): | ||
| break; | ||
| case (EM2800_BOARD_TERRATEC_CINERGY_200): | ||
| break; | ||
| case (EM2800_BOARD_LEADTEK_WINFAST_USBII): | ||
| break; | ||
| case (EM2800_BOARD_KWORLD_USB2800): | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| /* ---------------------------------------------------------------------- | ||
| * Local variables: | ||
| * c-basic-offset: 8 | ||
| * End: | ||
| */ |
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