MDTV receiver kernel modules.
Copyright (C) 2006-2009, Uri Shkolnik
+ Copyright (c) 2010 - Mauro Carvalho Chehab
+ - Ported the driver to use rc-core
+ - IR raw event decoding is now done at rc-core
+ - Code almost re-written
+
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
#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 */
-};
-
-static u32 ir_pos;
-static u32 ir_word;
-static 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_log("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];
+#define MODULE_NAME "smsmdtv"
- if (!toggle_changed &&
- (keycode != KEY_VOLUMEUP && keycode != KEY_VOLUMEDOWN))
- return; /* accept only repeated volume, reject other keys */
-
- sms_log("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)
+void sms_ir_event(struct smscore_device_t *coredev, const char *buf, int len)
{
-/* unsigned int org_code = code;*/
- unsigned int pair;
- unsigned int rc5 = 0;
int i;
+ const s32 *samples = (const void *)buf;
- 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_log("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_log("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_log("IR error parsing a word");
+ for (i = 0; i < len >> 2; i++) {
+ struct ir_raw_event ev;
- ir_pos = 0;
- ir_word = 0;
- /* sms_log("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)
+ ev.duration = abs(samples[i]) * 1000; /* Convert to ns */
+ ev.pulse = (samples[i] > 0) ? false : true;
- break;
+ ir_raw_event_store(coredev->ir.input_dev, &ev);
}
-}
-
-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_log("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 */
+ ir_raw_event_handle(coredev->ir.input_dev);
}
int sms_ir_init(struct smscore_device_t *coredev)
{
struct input_dev *input_dev;
+ int board_id = smscore_get_board_id(coredev);
sms_log("Allocating input device");
input_dev = input_allocate_device();
}
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_log("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_log("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);
+ snprintf(coredev->ir.name, sizeof(coredev->ir.name),
+ "SMS IR (%s)", sms_get_board(board_id)->name);
+
+ strlcpy(coredev->ir.phys, coredev->devpath, sizeof(coredev->ir.phys));
+ strlcat(coredev->ir.phys, "/ir0", sizeof(coredev->ir.phys));
+
input_dev->name = coredev->ir.name;
- input_dev->phys = coredev->ir.name;
+ input_dev->phys = coredev->ir.phys;
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);
+#if 0
+ /* TODO: properly initialize the parameters bellow */
+ input_dev->id.bustype = BUS_USB;
+ input_dev->id.version = 1;
+ input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
+ input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
+#endif
+
+ coredev->ir.props.priv = coredev;
+ coredev->ir.props.driver_type = RC_DRIVER_IR_RAW;
+ coredev->ir.props.allowed_protos = IR_TYPE_ALL;
sms_log("Input device (IR) %s is set for key events", input_dev->name);
- if (input_register_device(input_dev)) {
+ if (ir_input_register(input_dev, sms_get_board(board_id)->rc_codes,
+ &coredev->ir.props, MODULE_NAME)) {
sms_err("Failed to register device");
input_free_device(input_dev);
return -EACCES;
void sms_ir_exit(struct smscore_device_t *coredev)
{
if (coredev->ir.input_dev)
- input_unregister_device(coredev->ir.input_dev);
+ ir_input_unregister(coredev->ir.input_dev);
sms_log("");
}
-
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