forked from len0rd/rockbox
A lot more stable remote control handling
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2447 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing
parent
07557e5612
commit
cfec25bb9e
3 changed files with 99 additions and 67 deletions
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@ -28,6 +28,7 @@
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#include "kernel.h"
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#include "backlight.h"
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#include "adc.h"
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#include "serial.h"
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struct event_queue button_queue;
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@ -52,18 +53,27 @@ static int button_read(void);
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static void button_tick(void)
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{
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static int tick=0;
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static int count=0;
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static int lastbtn=0;
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static int repeat_speed=REPEAT_INTERVAL_START;
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static bool repeat=false;
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static int tick = 0;
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static int count = 0;
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static int lastbtn = 0;
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static int repeat_speed = REPEAT_INTERVAL_START;
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static bool repeat = false;
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int diff;
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int btn;
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/* Post events for the remote control */
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btn = remote_control_rx();
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if(btn)
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{
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queue_post(&button_queue, btn, NULL);
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backlight_on();
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}
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/* only poll every X ticks */
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if ( ++tick >= POLL_FREQUENCY )
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{
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bool post = false;
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int btn = button_read();
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btn = button_read();
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/* Find out if a key has been released */
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diff = btn ^ lastbtn;
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@ -91,7 +101,7 @@ static void button_tick(void)
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if (count == 0) {
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post = true;
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/* yes we have repeat */
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repeat_speed--;
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repeat_speed--;
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if (repeat_speed < REPEAT_INTERVAL_FINISH)
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repeat_speed = REPEAT_INTERVAL_FINISH;
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count = repeat_speed;
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@ -43,84 +43,105 @@ static void screen_dump(void);
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void serial_setup (void)
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{
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char dummy;
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dummy = SSR1;
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SSR1 = 0;
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SMR1 = 0x00;
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SCR1 = 0;
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BRR1 = (FREQ/(32*9600))-1;
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SSR1 &= 0; /* The status bits must be read before they are cleared,
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so we do an AND operation */
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/* let the hardware settle */
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/* Let the hardware settle. The serial port needs to wait "at least
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the interval required to transmit or receive one bit" before it
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can be used. */
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sleep(1);
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SCR1 = 0x50;
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/* This enables the serial Rx interrupt*/
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IPRE = (IPRE & 0x0FFF) | 0x8000; /* Set to medium priority */
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SCR1 = 0x10; /* Enable the receiver, no interrupt */
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}
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static void process_byte(int byte)
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/* This function returns the received remote control code only if it is
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received without errors before or after the reception.
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It therefore returns the received code on the second call after the
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code has been received. */
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int remote_control_rx(void)
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{
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int btn = 0;
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static int last_valid_button = BUTTON_NONE;
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static int last_was_error = false;
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int btn;
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int ret = BUTTON_NONE;
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/* Errors? Just clear'em. The receiver stops if we don't */
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if(SSR1 & (SCI_ORER | SCI_FER | SCI_PER)) {
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SSR1 &= ~(SCI_ORER | SCI_FER | SCI_PER);
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last_valid_button = BUTTON_NONE;
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last_was_error = true;
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return BUTTON_NONE;
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}
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switch (byte)
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{
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case STOP:
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if(SSR1 & SCI_RDRF) {
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/* Read byte and clear the Rx Full bit */
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btn = RDR1;
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SSR1 &= ~SCI_RDRF;
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if(last_was_error)
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{
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last_valid_button = BUTTON_NONE;
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ret = BUTTON_NONE;
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}
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else
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{
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switch (btn)
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{
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case STOP:
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#ifdef HAVE_RECORDER_KEYPAD
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btn = BUTTON_OFF;
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last_valid_button = BUTTON_OFF;
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#else
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btn = BUTTON_STOP;
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last_valid_button = BUTTON_STOP;
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#endif
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break;
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case PLAY:
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btn = BUTTON_PLAY;
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break;
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case VOLUP:
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btn = BUTTON_VOL_UP;
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break;
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case VOLDN:
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btn = BUTTON_VOL_DOWN;
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break;
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case PREV:
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btn = BUTTON_LEFT;
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break;
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case NEXT:
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btn = BUTTON_RIGHT;
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break;
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break;
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case PLAY:
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last_valid_button = BUTTON_PLAY;
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break;
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case VOLUP:
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last_valid_button = BUTTON_VOL_UP;
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break;
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case VOLDN:
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last_valid_button = BUTTON_VOL_DOWN;
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break;
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case PREV:
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last_valid_button = BUTTON_LEFT;
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break;
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case NEXT:
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last_valid_button = BUTTON_RIGHT;
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break;
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#ifdef SCREENDUMP
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case SCRDMP:
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screen_dump();
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break;
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case SCRDMP:
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screen_dump();
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break;
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#endif
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default:
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last_valid_button = BUTTON_NONE;
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break;
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}
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}
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}
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if ( btn ) {
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queue_post(&button_queue, btn, NULL);
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backlight_on();
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queue_post(&button_queue, btn | BUTTON_REL, NULL);
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else
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{
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/* This means that a valid remote control character was received
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the last time we were called, with no receiver errors either before
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or after. Then we can assume that there really is a remote control
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attached, and return the button code. */
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ret = last_valid_button;
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last_valid_button = BUTTON_NONE;
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}
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}
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last_was_error = false;
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#pragma interrupt
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void REI1 (void)
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{
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SSR1 = SSR1 & ~0x10; /* Clear FER */
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SSR1 = SSR1 & ~0x40; /* Clear RDRF */
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}
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#pragma interrupt
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void RXI1 (void)
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{
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unsigned char serial_byte;
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serial_byte = RDR1;
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SSR1 = SSR1 & ~0x40; /* Clear RDRF */
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process_byte(serial_byte);
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return ret;
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}
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#ifdef SCREENDUMP
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@ -21,5 +21,6 @@
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#define __SERIAL_H__
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extern void serial_setup (void);
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extern int remote_control_rx(void);
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#endif
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