bool_t gdispInit(void) {
bool_t res;
unsigned i;
/* Mark all the Messages as free */
for(i=0; i < GDISP_QUEUE_SIZE; i++)
gdispMsgs[i].action = GDISP_LLD_MSG_NOP;
/* Initialise our Mailbox, Mutex's and Counting Semaphore.
* A Mutex is required as well as the Mailbox and Thread because some calls have to be synchronous.
* Synchronous calls get handled by the calling thread, asynchronous by our worker thread.
*/
chMBInit(&gdispMailbox, gdispMailboxQueue, sizeof(gdispMailboxQueue)/sizeof(gdispMailboxQueue[0]));
chMtxInit(&gdispMutex);
chMtxInit(&gdispMsgsMutex);
chSemInit(&gdispMsgsSem, GDISP_QUEUE_SIZE);
lldThread = chThdCreateStatic(waGDISPThread, sizeof(waGDISPThread), NORMALPRIO, GDISPThreadHandler, NULL);
/* Initialise driver - synchronous */
chMtxLock(&gdispMutex);
res = gdisp_lld_init();
chMtxUnlock();
return res;
}
bool_t gdispInit(void) {
bool_t res;
/* Initialise Mutex */
chMtxInit(&gdispMutex);
/* Initialise driver */
chMtxLock(&gdispMutex);
res = gdisp_lld_init();
chMtxUnlock();
return res;
}
void gdisp_lld_control(unsigned what, void *value) {
switch(what) {
case GDISP_CONTROL_POWER:
if(GDISP.Powermode == (gdisp_powermode_t)value)
return;
switch((gdisp_powermode_t)value) {
case powerOff:
lld_lcdWriteReg(0x0007, 0x0000);
lld_lcdWriteReg(0x0010, 0x0000);
lld_lcdWriteReg(0x0011, 0x0000);
lld_lcdWriteReg(0x0012, 0x0000);
lld_lcdWriteReg(0x0013, 0x0000);
gdisp_lld_backlight(0);
break;
case powerOn:
//*************Power On sequence ******************//
lld_lcdWriteReg(0x0010, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
lld_lcdWriteReg(0x0011, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
lld_lcdWriteReg(0x0012, 0x0000); /* VREG1OUT voltage */
lld_lcdWriteReg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
lld_lcdDelay(2000); /* Dis-charge capacitor power voltage */
lld_lcdWriteReg(0x0010, 0x17B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
lld_lcdWriteReg(0x0011, 0x0147); /* DC1[2:0], DC0[2:0], VC[2:0] */
lld_lcdDelay(500);
lld_lcdWriteReg(0x0012, 0x013C); /* VREG1OUT voltage */
lld_lcdDelay(500);
lld_lcdWriteReg(0x0013, 0x0E00); /* VDV[4:0] for VCOM amplitude */
lld_lcdWriteReg(0x0029, 0x0009); /* VCM[4:0] for VCOMH */
lld_lcdDelay(500);
lld_lcdWriteReg(0x0007, 0x0173); /* 262K color and display ON */
gdisp_lld_backlight(GDISP.Backlight);
if(GDISP.Powermode != powerSleep || GDISP.Powermode != powerDeepSleep)
gdisp_lld_init();
break;
case powerSleep:
lld_lcdWriteReg(0x0007, 0x0000); /* display OFF */
lld_lcdWriteReg(0x0010, 0x0000); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
lld_lcdWriteReg(0x0011, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
lld_lcdWriteReg(0x0012, 0x0000); /* VREG1OUT voltage */
lld_lcdWriteReg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
lld_lcdDelay(2000); /* Dis-charge capacitor power voltage */
lld_lcdWriteReg(0x0010, 0x0002); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
gdisp_lld_backlight(0);
break;
case powerDeepSleep:
lld_lcdWriteReg(0x0007, 0x0000); /* display OFF */
lld_lcdWriteReg(0x0010, 0x0000); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
lld_lcdWriteReg(0x0011, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
lld_lcdWriteReg(0x0012, 0x0000); /* VREG1OUT voltage */
lld_lcdWriteReg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
lld_lcdDelay(2000); /* Dis-charge capacitor power voltage */
lld_lcdWriteReg(0x0010, 0x0004); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
gdisp_lld_backlight(0);
break;
default:
return;
}
GDISP.Powermode = (gdisp_powermode_t)value;
return;
case GDISP_CONTROL_ORIENTATION:
if(GDISP.Orientation == (gdisp_orientation_t)value)
return;
switch((gdisp_orientation_t)value) {
case GDISP_ROTATE_0:
lld_lcdWriteReg(0x0001, 0x0100);
lld_lcdWriteReg(0x0003, 0x1038);
lld_lcdWriteReg(0x0060, 0x2700);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
lld_lcdWriteReg(0x0001, 0x0000);
lld_lcdWriteReg(0x0003, 0x1030);
lld_lcdWriteReg(0x0060, 0x2700);
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
lld_lcdWriteReg(0x0001, 0x0000);
lld_lcdWriteReg(0x0003, 0x1038);
lld_lcdWriteReg(0x0060, 0xa700);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
lld_lcdWriteReg(0x0001, 0x0100);
lld_lcdWriteReg(0x0003, 0x1030);
lld_lcdWriteReg(0x0060, 0xA700);
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
#if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
GDISP.Orientation = (gdisp_orientation_t)value;
return;
case GDISP_CONTROL_BACKLIGHT:
if((unsigned)value > 100) value = (void *)100;
gdisp_lld_backlight((unsigned)value);
GDISP.Backlight = (unsigned)value;
break;
default:
return;
}
}
/**
* @brief Driver Control
* @details Unsupported control codes are ignored.
* @note The value parameter should always be typecast to (void *).
* @note There are some predefined and some specific to the low level driver.
* @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
* GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
* GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
* that only supports off/on anything other
* than zero is on.
* GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
* GDISP_CONTROL_LLD - Low level driver control constants start at
* this value.
*
* @param[in] what What to do.
* @param[in] value The value to use (always cast to a void *).
*
* @notapi
*/
void gdisp_lld_control(unsigned what, void *value) {
switch(what) {
case GDISP_CONTROL_POWER:
if (GDISP.Powermode == (gdisp_powermode_t)value)
return;
switch((gdisp_powermode_t)value) {
case powerOff:
acquire_bus();
write_reg(0x0010, 0x0000); // leave sleep mode
write_reg(0x0007, 0x0000); // halt operation
write_reg(0x0000, 0x0000); // turn off oszillator
write_reg(0x0010, 0x0001); // enter sleepmode
release_bus();
break;
case powerOn:
acquire_bus();
write_reg(0x0010, 0x0000); // leave sleep mode
release_bus();
if (GDISP.Powermode != powerSleep)
gdisp_lld_init();
break;
case powerSleep:
acquire_bus();
write_reg(0x0010, 0x0001); // enter sleep mode
release_bus();
break;
default:
return;
}
GDISP.Powermode = (gdisp_powermode_t)value;
return;
case GDISP_CONTROL_ORIENTATION:
if (GDISP.Orientation == (gdisp_orientation_t)value)
return;
switch((gdisp_orientation_t)value) {
case GDISP_ROTATE_0:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* ID = 11 AM = 0 */
write_reg(0x0011, 0x6070);
release_bus();
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 11 AM = 1 */
write_reg(0x0011, 0x6078);
release_bus();
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* ID = 01 AM = 0 */
write_reg(0x0011, 0x6040);
release_bus();
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 01 AM = 1 */
write_reg(0x0011, 0x6048);
release_bus();
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
#if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
GDISP.Orientation = (gdisp_orientation_t)value;
return;
/*
case GDISP_CONTROL_BACKLIGHT:
case GDISP_CONTROL_CONTRAST:
*/
}
}
/**
* @brief Driver Control
* @details Unsupported control codes are ignored.
* @note The value parameter should always be typecast to (void *).
* @note There are some predefined and some specific to the low level driver.
* @note GDISP_CONTROL_POWER - Takes a gdisp_powermode_t
* GDISP_CONTROL_ORIENTATION - Takes a gdisp_orientation_t
* GDISP_CONTROL_BACKLIGHT - Takes an int from 0 to 100. For a driver
* that only supports off/on anything other
* than zero is on.
* GDISP_CONTROL_CONTRAST - Takes an int from 0 to 100.
* GDISP_CONTROL_LLD - Low level driver control constants start at
* this value.
*
* @param[in] what What to do.
* @param[in] value The value to use (always cast to a void *).
*
* @notapi
*/
void gdisp_lld_control(unsigned what, void *value) {
/* NOT IMPLEMENTED YET */
switch(what) {
case GDISP_CONTROL_POWER:
if (GDISP.Powermode == (gdisp_powermode_t)value)
return;
switch((gdisp_powermode_t)value) {
case powerOff:
write_index(SSD1963_EXIT_SLEEP_MODE); // leave sleep mode
chThdSleepMilliseconds(5);
write_index(SSD1963_SET_DISPLAY_OFF);
write_index(SSD1963_SET_DEEP_SLEEP); // enter deep sleep mode
break;
case powerOn:
read_reg(0x0000); chThdSleepMilliseconds(5); // 2x Dummy reads to wake up from deep sleep
read_reg(0x0000); chThdSleepMilliseconds(5);
if (GDISP.Powermode != powerSleep)
gdisp_lld_init();
write_index(SSD1963_SET_DISPLAY_ON);
break;
case powerSleep:
write_index(SSD1963_SET_DISPLAY_OFF);
write_index(SSD1963_ENTER_SLEEP_MODE); // enter sleep mode
chThdSleepMilliseconds(5);
break;
default:
return;
}
GDISP.Powermode = (gdisp_powermode_t)value;
return;
case GDISP_CONTROL_ORIENTATION:
if (GDISP.Orientation == (gdisp_orientation_t)value)
return;
switch((gdisp_orientation_t)value) {
case GDISP_ROTATE_0:
/* Code here */
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
/* Code here */
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
/* Code here */
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
/* Code here */
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
#if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
GDISP.Orientation = (gdisp_orientation_t)value;
return;
case GDISP_CONTROL_BACKLIGHT:
gdisp_lld_bg_dimmer(54 + ((uint8_t)value) << 1);//turn 0..100% in 54..255
return;
/*
case GDISP_CONTROL_CONTRAST:
*/
}
}
