# HG changeset patch # User Uri Shkolnik <uris@xxxxxxxxxxxx> # Date 1238697194 -10800 # Node ID 020ba7b31c963bd36d607848198e9e4258a6f80e # Parent e8d224d81e2adde182162ab156aa98725e43f5c0 [PATCH] [0904_9] Siano: add support for infra-red (IR) controllers From: Uri Shkolnik <uris@xxxxxxxxxxxx> This patch add support for IR (infra-red) remote controllers. Further commits are needed in order to enable the activation of the IR components. Priority: normal Signed-off-by: Uri Shkolnik <uris@xxxxxxxxxxxx> diff -r e8d224d81e2a -r 020ba7b31c96 linux/drivers/media/dvb/siano/smsir.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/linux/drivers/media/dvb/siano/smsir.c Thu Apr 02 21:33:14 2009 +0300 @@ -0,0 +1,301 @@ +/**************************************************************** + + Siano Mobile Silicon, Inc. + MDTV receiver kernel modules. + Copyright (C) 2006-2009, Uri Shkolnik + + 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, see <http://www.gnu.org/licenses/>. + + ****************************************************************/ + + +#include <linux/types.h> +#include <linux/input.h> + +#include "smscoreapi.h" +#include "smsir.h" +#include "sms-cards.h" + +/* In order to add new IR remote control - + * 1) Add it to the <enum ir_kb_type> @ smsir,h, + * 2) Add its map to keyboard_layout_maps below + * 3) Set your board (sms-cards sub-module) to use it + */ + +static struct keyboard_layout_map_t keyboard_layout_maps[] = { + [SMS_IR_KB_DEFAULT_TV] = { + .ir_protocol = IR_RC5, + .rc5_kbd_address = KEYBOARD_ADDRESS_TV1, + .keyboard_layout_map = { + KEY_0, KEY_1, KEY_2, + KEY_3, KEY_4, KEY_5, + KEY_6, KEY_7, KEY_8, + KEY_9, 0, 0, KEY_POWER, + KEY_MUTE, 0, 0, + KEY_VOLUMEUP, KEY_VOLUMEDOWN, + KEY_BRIGHTNESSUP, + KEY_BRIGHTNESSDOWN, KEY_CHANNELUP, + KEY_CHANNELDOWN, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + } + }, + [SMS_IR_KB_HCW_SILVER] = { + .ir_protocol = IR_RC5, + .rc5_kbd_address = KEYBOARD_ADDRESS_LIGHTING1, + .keyboard_layout_map = { + KEY_0, KEY_1, KEY_2, + KEY_3, KEY_4, KEY_5, + KEY_6, KEY_7, KEY_8, + KEY_9, KEY_TEXT, KEY_RED, + KEY_RADIO, KEY_MENU, + KEY_SUBTITLE, + KEY_MUTE, KEY_VOLUMEUP, + KEY_VOLUMEDOWN, KEY_PREVIOUS, 0, + KEY_UP, KEY_DOWN, KEY_LEFT, + KEY_RIGHT, KEY_VIDEO, KEY_AUDIO, + KEY_MHP, KEY_EPG, KEY_TV, + 0, KEY_NEXTSONG, KEY_EXIT, + KEY_CHANNELUP, KEY_CHANNELDOWN, + KEY_CHANNEL, 0, + KEY_PREVIOUSSONG, KEY_ENTER, + KEY_SLEEP, 0, 0, KEY_BLUE, + 0, 0, 0, 0, KEY_GREEN, 0, + KEY_PAUSE, 0, KEY_REWIND, + 0, KEY_FASTFORWARD, KEY_PLAY, + KEY_STOP, KEY_RECORD, + KEY_YELLOW, 0, 0, KEY_SELECT, + KEY_ZOOM, KEY_POWER, 0, 0 + } + }, + { } /* Terminating entry */ +}; + +u32 ir_pos; +u32 ir_word; +u32 ir_toggle; + +#define RC5_PUSH_BIT(dst, bit, pos) \ + { dst <<= 1; dst |= bit; pos++; } + + +static void sms_ir_rc5_event(struct smscore_device_t *coredev, + u32 toggle, u32 addr, u32 cmd) +{ + bool toggle_changed; + u16 keycode; + + sms_info("IR RC5 word: address %d, command %d, toggle %d", + addr, cmd, toggle); + + toggle_changed = ir_toggle != toggle; + /* keep toggle */ + ir_toggle = toggle; + + if (addr != + keyboard_layout_maps[coredev->ir.ir_kb_type].rc5_kbd_address) + return; /* Check for valid address */ + + keycode = + keyboard_layout_maps + [coredev->ir.ir_kb_type].keyboard_layout_map[cmd]; + + if (!toggle_changed && + (keycode != KEY_VOLUMEUP && keycode != KEY_VOLUMEDOWN)) + return; /* accept only repeated volume, reject other keys */ + + sms_info("kernel input keycode (from ir) %d", keycode); + input_report_key(coredev->ir.input_dev, keycode, 1); + input_sync(coredev->ir.input_dev); + +} + +/* decode raw bit pattern to RC5 code */ +/* taken from ir-functions.c */ +static u32 ir_rc5_decode(unsigned int code) +{ +/* unsigned int org_code = code;*/ + unsigned int pair; + unsigned int rc5 = 0; + int i; + + for (i = 0; i < 14; ++i) { + pair = code & 0x3; + code >>= 2; + + rc5 <<= 1; + switch (pair) { + case 0: + case 2: + break; + case 1: + rc5 |= 1; + break; + case 3: +/* dprintk(1, "ir-common: ir_rc5_decode(%x) bad code\n", org_code);*/ + sms_info("bad code"); + return 0; + } + } +/* + dprintk(1, "ir-common: code=%x, rc5=%x, start=%x, + toggle=%x, address=%x, " + "instr=%x\n", rc5, org_code, RC5_START(rc5), + RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5)); +*/ + return rc5; +} + +static void sms_rc5_parse_word(struct smscore_device_t *coredev) +{ + #define RC5_START(x) (((x)>>12)&3) + #define RC5_TOGGLE(x) (((x)>>11)&1) + #define RC5_ADDR(x) (((x)>>6)&0x1F) + #define RC5_INSTR(x) ((x)&0x3F) + + int i, j; + u32 rc5_word = 0; + + /* Reverse the IR word direction */ + for (i = 0 ; i < 28 ; i++) + RC5_PUSH_BIT(rc5_word, (ir_word>>i)&1, j) + + rc5_word = ir_rc5_decode(rc5_word); + /* sms_info("temp = 0x%x, rc5_code = 0x%x", ir_word, rc5_word); */ + + sms_ir_rc5_event(coredev, + RC5_TOGGLE(rc5_word), + RC5_ADDR(rc5_word), + RC5_INSTR(rc5_word)); +} + + +static void sms_rc5_accumulate_bits(struct smscore_device_t *coredev, + s32 ir_sample) +{ + #define RC5_TIME_GRANULARITY 200 + #define RC5_DEF_BIT_TIME 889 + #define RC5_MAX_SAME_BIT_CONT 4 + #define RC5_WORD_LEN 27 /* 28 bit */ + + u32 i, j; + s32 delta_time; + u32 time = (ir_sample > 0) ? ir_sample : (0-ir_sample); + u32 level = (ir_sample < 0) ? 0 : 1; + + for (i = RC5_MAX_SAME_BIT_CONT; i > 0; i--) { + delta_time = time - (i*RC5_DEF_BIT_TIME) + RC5_TIME_GRANULARITY; + if (delta_time < 0) + continue; /* not so many consecutive bits */ + if (delta_time > (2 * RC5_TIME_GRANULARITY)) { + /* timeout */ + if (ir_pos == (RC5_WORD_LEN-1)) + /* complete last bit */ + RC5_PUSH_BIT(ir_word, level, ir_pos) + + if (ir_pos == RC5_WORD_LEN) + sms_rc5_parse_word(coredev); + else if (ir_pos) /* timeout within a word */ + sms_info("IR error parsing a word"); + + ir_pos = 0; + ir_word = 0; + /* sms_info("timeout %d", time); */ + break; + } + /* The time is within the range of this number of bits */ + for (j = 0 ; j < i ; j++) + RC5_PUSH_BIT(ir_word, level, ir_pos) + + break; + } +} + +void sms_ir_event(struct smscore_device_t *coredev, const char *buf, int len) +{ + #define IR_DATA_RECEIVE_MAX_LEN 520 /* 128*4 + 4 + 4 */ + u32 i; + enum ir_protocol ir_protocol = + keyboard_layout_maps[coredev->ir.ir_kb_type] + .ir_protocol; + s32 *samples; + int count = len>>2; + + samples = (s32 *)buf; +/* sms_info("IR buffer received, length = %d", count);*/ + + for (i = 0; i < count; i++) + if (ir_protocol == IR_RC5) + sms_rc5_accumulate_bits(coredev, samples[i]); + /* IR_RCMM not implemented */ +} + +int sms_ir_init(struct smscore_device_t *coredev) +{ + struct input_dev *input_dev; + + sms_info("Allocating input device"); + input_dev = input_allocate_device(); + if (!input_dev) { + sms_err("Not enough memory"); + return -ENOMEM; + } + + coredev->ir.input_dev = input_dev; + coredev->ir.ir_kb_type = + sms_get_board(smscore_get_board_id(coredev))->ir_kb_type; + coredev->ir.keyboard_layout_map = + keyboard_layout_maps[coredev->ir.ir_kb_type]. + keyboard_layout_map; + sms_info("IR remote keyboard type is %d", coredev->ir.ir_kb_type); + + coredev->ir.controller = 0; /* Todo: vega/nova SPI number */ + coredev->ir.timeout = IR_DEFAULT_TIMEOUT; + sms_info("IR port %d, timeout %d ms", + coredev->ir.controller, coredev->ir.timeout); + + snprintf(coredev->ir.name, + IR_DEV_NAME_MAX_LEN, + "SMS IR w/kbd type %d", + coredev->ir.ir_kb_type); + input_dev->name = coredev->ir.name; + input_dev->phys = coredev->ir.name; + input_dev->dev.parent = coredev->device; + + /* Key press events only */ + input_dev->evbit[0] = BIT_MASK(EV_KEY); + input_dev->keybit[BIT_WORD(BTN_0)] = BIT_MASK(BTN_0); + + sms_info("Input device (IR) %s is set for key events", input_dev->name); + + if (input_register_device(input_dev)) { + sms_err("Failed to register device"); + input_free_device(input_dev); + return -EACCES; + } + + return 0; +} + +void sms_ir_exit(struct smscore_device_t *coredev) +{ + if (coredev->ir.input_dev) + input_unregister_device(coredev->ir.input_dev); + + sms_info(""); +} + diff -r e8d224d81e2a -r 020ba7b31c96 linux/drivers/media/dvb/siano/smsir.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/linux/drivers/media/dvb/siano/smsir.h Thu Apr 02 21:33:14 2009 +0300 @@ -0,0 +1,93 @@ +/**************************************************************** + +Siano Mobile Silicon, Inc. +MDTV receiver kernel modules. +Copyright (C) 2006-2009, Uri Shkolnik + +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, see <http://www.gnu.org/licenses/>. + +****************************************************************/ + +#ifndef __SMS_IR_H__ +#define __SMS_IR_H__ + +#include <linux/input.h> + +#define IR_DEV_NAME_MAX_LEN 23 /* "SMS IR kbd type nn\0" */ +#define IR_KEYBOARD_LAYOUT_SIZE 64 +#define IR_DEFAULT_TIMEOUT 100 + +enum ir_kb_type { + SMS_IR_KB_DEFAULT_TV, + SMS_IR_KB_HCW_SILVER +}; + +enum rc5_keyboard_address { + KEYBOARD_ADDRESS_TV1 = 0, + KEYBOARD_ADDRESS_TV2 = 1, + KEYBOARD_ADDRESS_TELETEXT = 2, + KEYBOARD_ADDRESS_VIDEO = 3, + KEYBOARD_ADDRESS_LV1 = 4, + KEYBOARD_ADDRESS_VCR1 = 5, + KEYBOARD_ADDRESS_VCR2 = 6, + KEYBOARD_ADDRESS_EXPERIMENTAL = 7, + KEYBOARD_ADDRESS_SAT1 = 8, + KEYBOARD_ADDRESS_CAMERA = 9, + KEYBOARD_ADDRESS_SAT2 = 10, + KEYBOARD_ADDRESS_CDV = 12, + KEYBOARD_ADDRESS_CAMCORDER = 13, + KEYBOARD_ADDRESS_PRE_AMP = 16, + KEYBOARD_ADDRESS_TUNER = 17, + KEYBOARD_ADDRESS_RECORDER1 = 18, + KEYBOARD_ADDRESS_PRE_AMP1 = 19, + KEYBOARD_ADDRESS_CD_PLAYER = 20, + KEYBOARD_ADDRESS_PHONO = 21, + KEYBOARD_ADDRESS_SATA = 22, + KEYBOARD_ADDRESS_RECORDER2 = 23, + KEYBOARD_ADDRESS_CDR = 26, + KEYBOARD_ADDRESS_LIGHTING = 29, + KEYBOARD_ADDRESS_LIGHTING1 = 30, /* KEYBOARD_ADDRESS_HCW_SILVER */ + KEYBOARD_ADDRESS_PHONE = 31, + KEYBOARD_ADDRESS_NOT_RC5 = 0xFFFF +}; + +enum ir_protocol { + IR_RC5, + IR_RCMM +}; + +struct keyboard_layout_map_t { + enum ir_protocol ir_protocol; + enum rc5_keyboard_address rc5_kbd_address; + u16 keyboard_layout_map[IR_KEYBOARD_LAYOUT_SIZE]; +}; + +struct smscore_device_t; + +struct ir_t { + struct input_dev *input_dev; + enum ir_kb_type ir_kb_type; + char name[IR_DEV_NAME_MAX_LEN+1]; + u16 *keyboard_layout_map; + u32 timeout; + u32 controller; +}; + +int sms_ir_init(struct smscore_device_t *coredev); +void sms_ir_exit(struct smscore_device_t *coredev); +void sms_ir_event(struct smscore_device_t *coredev, + const char *buf, int len); + +#endif /* __SMS_IR_H__ */ + -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
