reduce recurring writes to lock leds
This commit is contained in:
jpetermans
parent
083267680d
commit
ac97870801
1 changed files with 53 additions and 5 deletions
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@ -135,16 +135,24 @@ msg_t is31_read_register(uint8_t page, uint8_t reg, uint8_t *result) {
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* initialise the IS31 chip
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* ======================== */
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void is31_init(void) {
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xprintf("_is31_init\n");
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// just to be sure that it's all zeroes
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__builtin_memset(full_page,0,0xB4+1);
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// zero function page, all registers (assuming full_page is all zeroes)
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is31_write_data(IS31_FUNCTIONREG, full_page, 0xD + 1);
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// disable hardware shutdown
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palSetPadMode(GPIOB, 16, PAL_MODE_OUTPUT_PUSHPULL);
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palSetPad(GPIOB, 16);
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chThdSleepMilliseconds(10);
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// software shutdown disable (i.e. turn stuff on)
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// software shutdown
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_ON);
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chThdSleepMilliseconds(10);
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// zero function page, all registers
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is31_write_data(IS31_FUNCTIONREG, full_page, 0xD + 1);
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chThdSleepMilliseconds(10);
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// software shutdown disable (i.e. turn stuff on)
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF);
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chThdSleepMilliseconds(10);
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// zero all LED registers on all 8 pages
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uint8_t i;
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for(i=0; i<8; i++) {
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@ -169,7 +177,7 @@ static THD_FUNCTION(LEDthread, arg) {
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uint8_t led_control_reg[0x13] = {0};//led control register start address + 0x12 bytes
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//persistent status variables
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uint8_t pwm_step_status, page_status;
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uint8_t pwm_step_status, page_status, capslock_status, numlock_status;
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//mailbox variables
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uint8_t temp, msg_type;
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@ -179,6 +187,8 @@ static THD_FUNCTION(LEDthread, arg) {
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// initialize persistent variables
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pwm_step_status = 4; //full brightness
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page_status = 0; //start frame 0 (all off/on)
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numlock_status = (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? 1 : 0;
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capslock_status = (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? 1 : 0;
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while(true) {
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// wait for a message (asynchronous)
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@ -190,38 +200,53 @@ static THD_FUNCTION(LEDthread, arg) {
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msg_args[1] = (msg >> 16) & 0XFF;
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msg_args[2] = (msg >> 24) & 0xFF;
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xprintf("msg_type: %d-%d-%d\n", msg_type, msg_args[0], msg_args[1]);
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switch (msg_type){
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case SET_FULL_ROW:
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xprintf("FULL ROW: %d-%d\n", msg_args[0], msg_args[1]);
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//write full byte to pin address, msg_args[1] = pin #, msg_args[0] = 8 bits to write
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//writes only to currently displayed page
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write_led_byte(page_status, msg_args[1], msg_args[0]);
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break;
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case OFF_LED:
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xprintf("OFF: %d-%d\n", msg_args[0], msg_args[1]);
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//on/off/toggle single led, msg_args[0] = row/col of led, msg_args[1] = page
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set_led_bit(msg_args[1], control_register_word, msg_args[0], 0);
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break;
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case ON_LED:
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xprintf("ON: %d-%d\n", msg_args[0], msg_args[1]);
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set_led_bit(msg_args[1], control_register_word, msg_args[0], 1);
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break;
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case TOGGLE_LED:
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xprintf("TOGGLE: %d-%d\n", msg_args[0], msg_args[1]);
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set_led_bit(msg_args[1], control_register_word, msg_args[0], 2);
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break;
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case BLINK_OFF_LED:
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xprintf("B_on: %d-%d\n", msg_args[0], msg_args[1]);
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//on/off/toggle single led, msg_args[0] = row/col of led
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set_led_bit(msg_args[1], control_register_word, msg_args[0], 4);
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break;
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case BLINK_ON_LED:
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xprintf("B_off: %d-%d\n", msg_args[0], msg_args[1]);
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set_led_bit(msg_args[1], control_register_word, msg_args[0], 5);
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break;
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case BLINK_TOGGLE_LED:
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xprintf("B_togg: %d-%d\n", msg_args[0], msg_args[1]);
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set_led_bit(msg_args[1], control_register_word, msg_args[0], 6);
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break;
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case TOGGLE_ALL:
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//turn on/off all leds, msg_args = unused
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_ON);
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chThdSleepMilliseconds(5);
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is31_read_register(0, 0x00, &temp);
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF);
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xprintf("TOGGLE_ALL: %d-%d\n", msg_args[0], msg_args[1]);
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xprintf("temp: %d\n", temp);
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led_control_reg[0] = 0;
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//if first leds are already on, toggle frame 0 off
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@ -243,6 +268,7 @@ static THD_FUNCTION(LEDthread, arg) {
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break;
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case TOGGLE_BACKLIGHT:
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xprintf("TOGGLE_BKLT: %d-%d\n", msg_args[0], msg_args[1]);
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//msg_args[0] = on/off
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//populate 9 byte rows to be written to each pin, first byte is register (pin) address
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@ -261,6 +287,7 @@ static THD_FUNCTION(LEDthread, arg) {
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case DISPLAY_PAGE:
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//msg_args[0] = page to toggle on
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xprintf("DSPY_PG: %d-%d\n", msg_args[0], msg_args[1]);
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if (page_status != msg_args[0]) {
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_PICTDISP, msg_args[0]);
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page_status = msg_args[0];
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@ -282,15 +309,24 @@ static THD_FUNCTION(LEDthread, arg) {
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break;
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case TOGGLE_NUM_LOCK:
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xprintf("NMLK: %d-%d\n", msg_args[0], msg_args[1]);
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//msg_args[0] = 0 or 1, off/on
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if (numlock_status != msg_args[0]) {
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set_lock_leds(NUM_LOCK_LED_ADDRESS, msg_args[0], page_status);
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numlock_status = msg_args[0];
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}
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break;
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case TOGGLE_CAPS_LOCK:
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xprintf("CPLK: %d-%d\n", msg_args[0], msg_args[1]);
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//msg_args[0] = 0 or 1, off/on
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if (capslock_status != msg_args[0]) {
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set_lock_leds(CAPS_LOCK_LED_ADDRESS, msg_args[0], page_status);
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capslock_status = msg_args[0];
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}
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break;
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case STEP_BRIGHTNESS:
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xprintf("Step: %d-%d\n", msg_args[0], msg_args[1]);
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//led_args[0] = step up (1) or down (0)
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switch (msg_args[0]) {
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case 0:
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@ -337,6 +373,7 @@ void set_led_bit (uint8_t page, uint8_t *led_control_word, uint8_t led_addr, uin
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if (led_addr < 0 || led_addr > 87 || led_addr % 10 > 8) {
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return;
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}
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xprintf("_set action-led: %x-%d\n", action, led_addr);
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blink_bit = action>>2;//check for blink bit
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action &= ~(1<<2); //strip blink bit
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@ -344,10 +381,17 @@ void set_led_bit (uint8_t page, uint8_t *led_control_word, uint8_t led_addr, uin
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//led_addr tens column is pin#, ones column is bit position in 8-bit mask
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control_reg_addr = ((led_addr / 10) % 10 - 1 ) * 0x02;// A-matrix is every other byte
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control_reg_addr += blink_bit == 1 ? 0x12 : 0x00;//if blink_bit, shift 12 bytes to blink register
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xprintf("_set control address: %x\n", control_reg_addr);
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_ON);
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chThdSleepMilliseconds(5);
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is31_read_register(page, control_reg_addr, &temp);//maintain status of leds on this byte
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF);
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xprintf("_set temp_byte_mask: %x\n", temp);
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column_bit = 1<<(led_addr % 10 - 1);
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column_byte = temp;
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xprintf("_set col_byte_mask: %x\n", column_byte);
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switch(action) {
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case 0:
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@ -398,13 +442,16 @@ void set_lock_leds(uint8_t led_addr, uint8_t led_action, uint8_t page) {
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//blink if all leds are on
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if (page == 0) {
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_ON);
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chThdSleepMilliseconds(5);
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is31_read_register(0, 0x00, &temp);
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chThdSleepMilliseconds(10);
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is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF);
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if (temp == 0xFF) {
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led_action |= (1<<2); //set blink bit
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}
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}
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xprintf("_lock action: %d\n", led_action);
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set_led_bit(page,led_control_word,led_addr,led_action);
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}
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@ -415,6 +462,7 @@ void set_lock_leds(uint8_t led_addr, uint8_t led_action, uint8_t page) {
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void led_controller_init(void) {
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uint8_t i;
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xprintf("led_init\n");
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/* initialise I2C */
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/* I2C pins */
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palSetPadMode(GPIOB, 0, PAL_MODE_ALTERNATIVE_2); // PTB0/I2C0/SCL
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