Exemplo n.º 1
0
FAR int up_lcdinitialize(void)
{
  lcddbg("Initializing lcd\n");

  lcddbg("init spi1\n");
  spi = up_spiinitialize(1);
  DEBUGASSERT(spi);

  lcddbg("configure related io\n");
  stm32_configgpio(GPIO_MEMLCD_EXTCOMIN);
  stm32_configgpio(GPIO_MEMLCD_DISP);

  lcddbg("configure EXTCOMIN timer\n");
  if (tim == NULL)
    {
      tim = stm32_tim_init(2);
      DEBUGASSERT(tim);
      STM32_TIM_SETPERIOD(tim, TIMER_FREQ / EXTCOMIN_FREQ);
      STM32_TIM_SETCLOCK(tim, TIMER_FREQ);
      STM32_TIM_SETMODE(tim, STM32_TIM_MODE_UP);
    }

  lcddbg("init lcd\n");
  l_lcddev = memlcd_initialize(spi, &memlcd_priv, 0);
  DEBUGASSERT(l_lcddev);

  return OK;
}
Exemplo n.º 2
0
int up_lcdinitialize(void)
{
  /* Only initialize the driver once */

  if (!g_ssd1289drvr)
    {
      lcdvdbg("Initializing\n");

      /* Initialize the backlight */

      init_lcd_backlight();

      /* Configure GPIO pins and configure the FSMC to support the LCD */

      stm32_selectlcd();

      /* Configure and enable the LCD */

      up_mdelay(50);
      g_ssd1289drvr = ssd1289_lcdinitialize(&g_ssd1289);
      if (!g_ssd1289drvr)
        {
          lcddbg("ERROR: ssd1289_lcdinitialize failed\n");
          return -ENODEV;
        }
    }

  /* Turn the display off */

  g_ssd1289drvr->setpower(g_ssd1289drvr, 0);
  return OK;
}
Exemplo n.º 3
0
static void ssd1289_showrun(FAR struct ssd1289_dev_s *priv, fb_coord_t row,
                            fb_coord_t col, size_t npixels, bool put)
{
    fb_coord_t nextrow = priv->lastrow + 1;

    /* Has anything changed (other than the row is the next row in the sequence)? */

    if (put == priv->put && row == nextrow && col == priv->col &&
            npixels == priv->npixels)
    {
        /* No, just update the last row */

        priv->lastrow = nextrow;
    }
    else
    {
        /* Yes... then this is the end of the preceding sequence.  Output the last run
         * (if there were more than one run in the sequence).
         */

        if (priv->firstrow != priv->lastrow)
        {
            lcddbg("...\n");
            lcddbg("%s row: %d col: %d npixels: %d\n",
                   priv->put ? "PUT" : "GET",
                   priv->lastrow, priv->col, priv->npixels);
        }

        /* And we are starting a new sequence.  Output the first run of the
         * new sequence
         */

        lcddbg("%s row: %d col: %d npixels: %d\n",
               put ? "PUT" : "GET", row, col, npixels);

        /* And save information about the run so that we can detect continuations
         * of the sequence.
         */

        priv->put      = put;
        priv->firstrow = row;
        priv->lastrow  = row;
        priv->col      = col;
        priv->npixels  = npixels;
    }
}
Exemplo n.º 4
0
FAR struct lcd_dev_s *board_graphics_setup(unsigned int devno)
{
    FAR struct spi_dev_s *spi;
    FAR struct lcd_dev_s *dev;

    /* Configure the OLED GPIOs. This initial configuration is RESET low,
     * putting the OLED into reset state.
     */

    (void)stm32_configgpio(GPIO_OLED_RESET);

    /* Wait a bit then release the OLED from the reset state */

    up_mdelay(20);
    stm32_gpiowrite(GPIO_OLED_RESET, true);

    /* Get the SPI1 port interface */

    spi = stm32_spibus_initialize(1);
    if (spi == NULL)
    {
        lcddbg("Failed to initialize SPI port 1\n");
    }
    else
    {
        /* Bind the SPI port to the OLED */

        dev = ssd1351_initialize(spi, devno);
        if (dev == NULL)
        {
            lcddbg("Failed to bind SPI port 1 to OLED %d: %d\n", devno);
        }
        else
        {
            lcdvdbg("Bound SPI port 1 to OLED %d\n", devno);

            /* And turn the OLED on */

            (void)dev->setpower(dev, LCD_FULL_ON);
            return dev;
        }
    }

    return NULL;
}
Exemplo n.º 5
0
FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno)
{
  FAR struct spi_dev_s *spi;
  FAR struct lcd_dev_s *dev;

  /* Configure the OLED GPIOs. This initial configuration is RESET low,
   * putting the OLED into reset state.
   */
 
  (void)stm32_configgpio(GPIO_OLED_RESET);

  /* Wait a bit then release the OLED from the reset state */

  up_mdelay(20);
  stm32_gpiowrite(GPIO_OLED_RESET, true);

  /* Get the SPI1 port interface */

  spi = up_spiinitialize(1);
  if (!spi)
    {
      lcddbg("Failed to initialize SPI port 1\n");
    }
  else
    {
      /* Bind the SPI port to the OLED */

      dev = ug2864ambag01_initialize(spi, devno);
      if (!dev)
        {
          lcddbg("Failed to bind SPI port 1 to OLED %d: %d\n", devno);
        }
     else
        {
          lcdvdbg("Bound SPI port 1 to OLED %d\n", devno);

          /* And turn the OLED on */

          (void)dev->setpower(dev, CONFIG_LCD_MAXPOWER);
          return dev;
        }
    }

  return NULL;
}
Exemplo n.º 6
0
FAR struct lcd_dev_s *board_graphics_setup(unsigned int devno)
{
  FAR struct spi_dev_s *spi;
  FAR struct lcd_dev_s *dev;

  /* Configure the OLED PORTs. This initial configuration is RESET low,
   * putting the OLED into reset state.
   */

  (void)sam_configport(PORT_OLED_RST);

  /* Wait a bit then release the OLED from the reset state */

  up_mdelay(20);
  sam_portwrite(PORT_OLED_RST, true);

  /* Get the SPI1 port interface */

  spi = up_spiinitialize(OLED_CSNO);
  if (!spi)
    {
      lcddbg("Failed to initialize SPI port 1\n");
    }
  else
    {
      /* Bind the SPI port to the OLED */

      dev = ssd1306_initialize(spi, devno);
      if (!dev)
        {
          lcddbg("Failed to bind SPI port 1 to OLED %d: %d\n", devno);
        }
     else
        {
          lcdvdbg("Bound SPI port 1 to OLED %d\n", devno);

          /* And turn the OLED on */

          (void)dev->setpower(dev, CONFIG_LCD_MAXPOWER);
          return dev;
        }
    }

  return NULL;
}
Exemplo n.º 7
0
static int up_lcdextcominisr(int irq, void *context)
{
  STM32_TIM_ACKINT(tim, 0);
  if (g_isr == NULL)
    {
      lcddbg("error, irq not attached, disabled\n");
      STM32_TIM_DISABLEINT(tim, 0);
      return OK;
    }

  return g_isr(irq, context);
}
Exemplo n.º 8
0
static void up_lcddispcontrol(bool on)
{
  lcddbg("set: %s\n", on ? "on" : "off");

  if (on)
    {
      stm32_gpiowrite(GPIO_MEMLCD_DISP, 1);
      STM32_TIM_ENABLEINT(tim, 0);
    }
  else
    {
      stm32_gpiowrite(GPIO_MEMLCD_DISP, 0);
      STM32_TIM_DISABLEINT(tim, 0);
    }
}
Exemplo n.º 9
0
static int up_lcdirqattach(xcpt_t isr)
{
  lcddbg("%s IRQ\n", isr == NULL ? "Detach" : "Attach");

  if (isr != NULL)
    {
      STM32_TIM_SETISR(tim, up_lcdextcominisr, 0);
      g_isr = isr;
    }
  else
    {
      STM32_TIM_SETISR(tim, NULL, 0);
      g_isr = NULL;
    }

  return OK;
}
Exemplo n.º 10
0
int up_lcdinitialize(void)
{
  /* Only initialize the driver once */

  if (!g_ssd1289drvr)
    {
      lcdvdbg("Initializing\n");

      /* Configure GPIO pins and configure the FSMC to support the LCD */

      stm32_selectlcd();

      /* Reset the LCD (active low) */

      stm32_gpiowrite(GPIO_LCD_RESET, false);
      up_mdelay(5);
      stm32_gpiowrite(GPIO_LCD_RESET, true);

      /* Configure and enable the LCD */

      up_mdelay(50);
      g_ssd1289drvr = ssd1289_lcdinitialize(&g_ssd1289);
      if (!g_ssd1289drvr)
        {
          lcddbg("ERROR: ssd1289_lcdinitialize failed\n");
          return -ENODEV;
        }
    }

  /* Clear the display (setting it to the color 0=black) */

#if 0 /* Already done in the driver */
  ssd1289_clear(g_ssd1289drvr, 0);
#endif

  /* Turn the display off */

  g_ssd1289drvr->setpower(g_ssd1289drvr, 0);
  return OK;
}
Exemplo n.º 11
0
static void up_lcdsetvcomfreq(unsigned int freq)
{
  lcddbg("freq: %d\n", freq);
  DEBUGASSERT(freq >= 1 && freq <= 60);
  STM32_TIM_SETPERIOD(tim, TIMER_FREQ / freq);
}
Exemplo n.º 12
0
static void init_lcd_backlight(void)
{
  uint16_t ccmr;
  uint16_t ccer;

  /* Configure PB5 as TIM3 CH2 output */

  stm32_configgpio(GPIO_TIM3_CH2OUT);

  /* Enable timer 3 clocking */

  modifyreg32(STM32_RCC_APB1ENR, 0, RCC_APB1ENR_TIM3EN);

  /* Reset timer 3 */

  modifyreg32(STM32_RCC_APB1RSTR, 0, RCC_APB1RSTR_TIM3RST);
  modifyreg32(STM32_RCC_APB1RSTR, RCC_APB1RSTR_TIM3RST, 0);

  /* Reset the Counter Mode and set the clock division */

  putreg16(0, STM32_TIM3_CR1);

  /* Set the Autoreload value */

  putreg16(LCD_BL_TIMER_PERIOD, STM32_TIM3_ARR);

  /* Set the Prescaler value */

  putreg16(0, STM32_TIM3_PSC);

  /* Generate an update event to reload the Prescaler value immediatly */

  putreg16(ATIM_EGR_UG, STM32_TIM3_EGR);

  /* Disable the Channel 2 */

  ccer  = getreg16(STM32_TIM3_CCER);
  ccer &= ~ATIM_CCER_CC2E;
  putreg16(ccer, STM32_TIM3_CCER);

  /* Select the Output Compare Mode Bits */

  ccmr  = getreg16(STM32_TIM3_CCMR1);
  ccmr &= ATIM_CCMR1_OC2M_MASK;
  ccmr |= (ATIM_CCMR_MODE_PWM1 << ATIM_CCMR1_OC2M_SHIFT);

  putreg16(0, STM32_TIM3_CCR2);

  /* Select the output polarity level == HIGH */

  ccer &= !ATIM_CCER_CC2P;

  /* Enable channel 2*/

  ccer |= ATIM_CCER_CC2E;

  /* Write the timer configuration */

  putreg16(ccmr, STM32_TIM3_CCMR1);
  putreg16(ccer, STM32_TIM3_CCER);

  /* Set the auto preload enable bit */

  modifyreg16(STM32_TIM3_CR1, 0, ATIM_CR1_ARPE);

  /* Enable Backlight Timer !!!!*/

  modifyreg16(STM32_TIM3_CR1, 0, ATIM_CR1_CEN);

  /* Dump timer3 registers */

  lcddbg("APB1ENR: %08x\n", getreg32(STM32_RCC_APB1ENR));
  lcddbg("CR1:     %04x\n", getreg32(STM32_TIM3_CR1));
  lcddbg("CR2:     %04x\n", getreg32(STM32_TIM3_CR2));
  lcddbg("SMCR:    %04x\n", getreg32(STM32_TIM3_SMCR));
  lcddbg("DIER:    %04x\n", getreg32(STM32_TIM3_DIER));
  lcddbg("SR:      %04x\n", getreg32(STM32_TIM3_SR));
  lcddbg("EGR:     %04x\n", getreg32(STM32_TIM3_EGR));
  lcddbg("CCMR1:   %04x\n", getreg32(STM32_TIM3_CCMR1));
  lcddbg("CCMR2:   %04x\n", getreg32(STM32_TIM3_CCMR2));
  lcddbg("CCER:    %04x\n", getreg32(STM32_TIM3_CCER));
  lcddbg("CNT:     %04x\n", getreg32(STM32_TIM3_CNT));
  lcddbg("PSC:     %04x\n", getreg32(STM32_TIM3_PSC));
  lcddbg("ARR:     %04x\n", getreg32(STM32_TIM3_ARR));
  lcddbg("CCR1:    %04x\n", getreg32(STM32_TIM3_CCR1));
  lcddbg("CCR2:    %04x\n", getreg32(STM32_TIM3_CCR2));
  lcddbg("CCR3:    %04x\n", getreg32(STM32_TIM3_CCR3));
  lcddbg("CCR4:    %04x\n", getreg32(STM32_TIM3_CCR4));
  lcddbg("CCR4:    %04x\n", getreg32(STM32_TIM3_CCR4));
  lcddbg("CCR4:    %04x\n", getreg32(STM32_TIM3_CCR4));
  lcddbg("DMAR:    %04x\n", getreg32(STM32_TIM3_DMAR));
}
Exemplo n.º 13
0
static inline int ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
{
    FAR struct ssd1289_lcd_s *lcd  = priv->lcd;
#ifndef CONFIG_LCD_NOGETRUN
    uint16_t id;
#endif
    int ret;

    /* Select the LCD */

    lcd->select(lcd);

    /* Read the device ID.  Skip verification of the device ID is the LCD is
     * write-only. What choice do we have?
     */

#ifndef CONFIG_LCD_NOGETRUN
    id = ssd1289_readreg(lcd, SSD1289_DEVCODE);
    if (id != 0)
    {
        lcddbg("LCD ID: %04x\n", id);
    }

    /* If we could not get the ID, then let's just assume that this is an SSD1289.
     * Perhaps we have some early register access issues.  This seems to happen.
     * But then perhaps we should not even bother to read the device ID at all?
     */

    else
    {
        lcddbg("No LCD ID, assuming SSD1289\n");
        id = SSD1289_DEVCODE_VALUE;
    }

    /* Check if the ID is for the SSD1289 */

    if (id == SSD1289_DEVCODE_VALUE)
#endif
    {
        /* LCD controller configuration.  Many details of the controller initialization
         * must, unfortunately, vary from LCD to LCD.  I have looked at the spec and at
         * three different drivers for LCDs that have SSD1289 controllers.  I have tried
         * to summarize these differences as profiles (defined above).  Some other
         * alternatives are noted below.
         *
         * Most of the differences between LCDs are nothing more than a few minor bit
         * settings.  The most significant difference betwen LCD drivers in is the
         * manner in which the LCD is powered up and in how the power controls are set.
         * My suggestion is that if you have working LCD initialization code, you should
         * simply replace the following guesses with your working code.
         */

        /* Most drivers just enable the oscillator */

#ifdef SSD1289_USE_SIMPLE_INIT
        ssd1289_putreg(lcd, SSD1289_OSCSTART, SSD1289_OSCSTART_OSCEN);
#else
        /* But one goes through a more complex start-up sequence.  Something like the
         * following:
         *
         * First, put the display in INTERNAL operation:
         * D=INTERNAL(1) CM=0 DTE=0 GON=1 SPT=0 VLE=0 PT=0
         */

        ssd1289_putreg(lcd, SSD1289_DSPCTRL,
                       (SSD1289_DSPCTRL_INTERNAL | SSD1289_DSPCTRL_GON |
                        SSD1289_DSPCTRL_VLE(0)));

        /* Then enable the oscillator */

        ssd1289_putreg(lcd, SSD1289_OSCSTART, SSD1289_OSCSTART_OSCEN);

        /* Turn the display on:
         * D=ON(3) CM=0 DTE=0 GON=1 SPT=0 VLE=0 PT=0
         */

        ssd1289_putreg(lcd, SSD1289_DSPCTRL,
                       (SSD1289_DSPCTRL_ON | SSD1289_DSPCTRL_GON |
                        SSD1289_DSPCTRL_VLE(0)));

        /* Take the LCD out of sleep mode */

        ssd1289_putreg(lcd, SSD1289_SLEEP, 0);
        up_mdelay(30);

        /* Turn the display on:
         * D=INTERNAL(1) CM=0 DTE=1 GON=1 SPT=0 VLE=0 PT=0
         */

        ssd1289_putreg(lcd, SSD1289_DSPCTRL,
                       (SSD1289_DSPCTRL_ON | SSD1289_DSPCTRL_DTE |
                        SSD1289_DSPCTRL_GON | SSD1289_DSPCTRL_VLE(0)));
#endif

        /* Set up power control registers.  There is a lot of variability
         * from LCD-to-LCD in how the power registers are configured.
         */

        ssd1289_putreg(lcd, SSD1289_PWRCTRL1, PWRCTRL1_SETTING);
        ssd1289_putreg(lcd, SSD1289_PWRCTRL2, PWRCTRL2_SETTING);

        /* One driver adds a delay here.. I doubt that this is really necessary. */
        /* up_mdelay(15); */

        ssd1289_putreg(lcd, SSD1289_PWRCTRL3, PWRCTRL3_SETTING);
        ssd1289_putreg(lcd, SSD1289_PWRCTRL4, PWRCTRL4_SETTING);
        ssd1289_putreg(lcd, SSD1289_PWRCTRL5, PWRCTRL5_SETTING);

        /* One driver does an odd setting of the the driver output control.
         * No idea why.
         */
#if 0
        ssd1289_putreg(lcd, SSD1289_OUTCTRL,
                       (SSD1289_OUTCTRL_MUX(12) | SSD1289_OUTCTRL_TB |
                        SSD1289_OUTCTRL_BGR | SSD1289_OUTCTRL_CAD));

        /* The same driver does another small delay here */

        up_mdelay(15);
#endif

        /* After this point, the drivers differ only in some varying register
         * bit settings.
         */

        /* Set the driver output control.
         * PORTRAIT MODES:
         *    MUX=319, TB=1, SM=0, BGR=1, CAD=0, REV=1, RL=0
         * LANDSCAPE MODES:
         *    MUX=319, TB=0, SM=0, BGR=1, CAD=0, REV=1, RL=0
         */

#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT)
        ssd1289_putreg(lcd, SSD1289_OUTCTRL,
                       (SSD1289_OUTCTRL_MUX(319) | SSD1289_OUTCTRL_TB |
                        SSD1289_OUTCTRL_BGR      | SSD1289_OUTCTRL_REV);
#else
        ssd1289_putreg(lcd, SSD1289_OUTCTRL,
                       (SSD1289_OUTCTRL_MUX(319) | SSD1289_OUTCTRL_BGR |
                        SSD1289_OUTCTRL_REV));
#endif

                       /* Set the LCD driving AC waveform
                        * NW=0, WSMD=0, EOR=1, BC=1, ENWD=0, FLD=0
                        */

                       ssd1289_putreg(lcd, SSD1289_ACCTRL,
                                      (SSD1289_ACCTRL_EOR | SSD1289_ACCTRL_BC));

                       /* Take the LCD out of sleep mode (isn't this redundant in the non-
                        * simple case?)
                        */

                       ssd1289_putreg(lcd, SSD1289_SLEEP, 0);

                       /* Set entry mode */

#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT)
                       /* LG=0, AM=0, ID=3, TY=2, DMODE=0, WMODE=0, OEDEF=0, TRANS=0, DRM=3
                        * Alternative TY=2 (But TY only applies in 262K color mode anyway)
                        */

                       ssd1289_putreg(lcd, SSD1289_ENTRY,
                                      (SSD1289_ENTRY_ID_HINCVINC | SSD1289_ENTRY_TY_C |
                                       SSD1289_ENTRY_DMODE_RAM | SSD1289_ENTRY_DFM_65K));
#else
                       /* LG=0, AM=1, ID=3, TY=2, DMODE=0, WMODE=0, OEDEF=0, TRANS=0, DRM=3 */
                       /* Alternative TY=2 (But TY only applies in 262K color mode anyway) */

                       ssd1289_putreg(lcd, SSD1289_ENTRY,
                                      (SSD1289_ENTRY_AM | SSD1289_ENTRY_ID_HINCVINC |
                                       SSD1289_ENTRY_TY_C | SSD1289_ENTRY_DMODE_RAM |
                                       SSD1289_ENTRY_DFM_65K));
#endif

                       /* Clear compare registers */

                       ssd1289_putreg(lcd, SSD1289_CMP1, 0);
                       ssd1289_putreg(lcd, SSD1289_CMP2, 0);

                       /* One driver puts a huge, 100 millisecond delay here */
                       /* up_mdelay(100); */

                       /* Set Horizontal and vertical porch.
                        * Horizontal porch:  239 pixels per line, delay=28
                        * Vertical porch:    VBP=3, XFP=0
                        */

                       ssd1289_putreg(lcd, SSD1289_HPORCH,
                                      (28 << SSD1289_HPORCH_HBP_SHIFT) | (239 << SSD1289_HPORCH_XL_SHIFT));
                       ssd1289_putreg(lcd, SSD1289_VPORCH,
                                      (3 << SSD1289_VPORCH_VBP_SHIFT)  | (0 << SSD1289_VPORCH_XFP_SHIFT));

                       /* Set display control.
                        * D=ON(3), CM=0 (not 8-color), DTE=1, GON=1, SPT=0, VLE=1 PT=0
                        */

                       ssd1289_putreg(lcd, SSD1289_DSPCTRL,
                                      (SSD1289_DSPCTRL_ON  | SSD1289_DSPCTRL_DTE |
                                       SSD1289_DSPCTRL_GON | SSD1289_DSPCTRL_VLE(1)));

                       /* Frame cycle control.  Alternative: SSD1289_FCYCCTRL_DIV8 */

                       ssd1289_putreg(lcd, SSD1289_FCYCCTRL, 0);

                       /* Gate scan start position = 0 */

                       ssd1289_putreg(lcd, SSD1289_GSTART, 0);

                       /* Clear vertical scrolling */

                       ssd1289_putreg(lcd, SSD1289_VSCROLL1, 0);
                       ssd1289_putreg(lcd, SSD1289_VSCROLL2, 0);

                       /* Setup window 1 (0-319) */

                       ssd1289_putreg(lcd, SSD1289_W1START, 0);
                       ssd1289_putreg(lcd, SSD1289_W1END, 319);

                       /* Disable window 2 (0-0) */

                       ssd1289_putreg(lcd, SSD1289_W2START, 0);
                       ssd1289_putreg(lcd, SSD1289_W2END, 0);

                       /* Horizontal start and end (0-239) */

                       ssd1289_putreg(lcd, SSD1289_HADDR,
                                      (0 << SSD1289_HADDR_HSA_SHIFT) | (239 << SSD1289_HADDR_HEA_SHIFT));

                       /* Vertical start and end (0-319) */

                       ssd1289_putreg(lcd, SSD1289_VSTART, 0);
                       ssd1289_putreg(lcd, SSD1289_VEND, 319);

                       /* Gamma controls */

                       ssd1289_putreg(lcd, SSD1289_GAMMA1, 0x0707);
                       ssd1289_putreg(lcd, SSD1289_GAMMA2, 0x0204); /* Alternative: 0x0704 */
                       ssd1289_putreg(lcd, SSD1289_GAMMA3, 0x0204);
                       ssd1289_putreg(lcd, SSD1289_GAMMA4, 0x0502);
                       ssd1289_putreg(lcd, SSD1289_GAMMA5, 0x0507);
                       ssd1289_putreg(lcd, SSD1289_GAMMA6, 0x0204);
                       ssd1289_putreg(lcd, SSD1289_GAMMA7, 0x0204);
                       ssd1289_putreg(lcd, SSD1289_GAMMA8, 0x0502);
                       ssd1289_putreg(lcd, SSD1289_GAMMA9, 0x0302);
                       ssd1289_putreg(lcd, SSD1289_GAMMA10, 0x0302); /* Alternative: 0x1f00 */

                       /* Clear write mask */

                       ssd1289_putreg(lcd, SSD1289_WRMASK1, 0);
                       ssd1289_putreg(lcd, SSD1289_WRMASK2, 0);

                       /* Set frame frequency = 65Hz (This should not be necessary since this
                        * is the default POR value)
                        */

                       ssd1289_putreg(lcd, SSD1289_FFREQ, SSD1289_FFREQ_OSC_FF65);

                       /* Set the cursor at the home position and set the index register to
                        * the gram data register (I can't imagine these are necessary).
                        */

                       ssd1289_setcursor(lcd, 0, 0);
                       ssd1289_gramselect(lcd);

                       /* One driver has a 50 msec delay here */
                       /* up_mdelay(50); */

                       ret = OK;
    }
Exemplo n.º 14
0
static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv)
{
  FAR struct mio283qt2_lcd_s *lcd  = priv->lcd;
#ifndef CONFIG_LCD_NOGETRUN
  uint16_t id;
#endif
  int ret;

  /* Select the LCD */

  lcd->select(lcd);

  /* Read the HIMAX ID registger (0x00) */

#ifndef CONFIG_LCD_NOGETRUN
  id = mio283qt2_readreg(lcd, 0x00);
  lcddbg("LCD ID: %04x\n", id);

  /* Check if the ID is for the MIO283QT2 */

  if (id == HIMAX_ID)
#endif
    {
      /* Driving ability */

      mio283qt2_putreg(lcd, 0xea, 0x0000);  /* PTBA[15:8] */
      mio283qt2_putreg(lcd, 0xeb, 0x0020);  /* PTBA[7:0] */
      mio283qt2_putreg(lcd, 0xec, 0x000c);  /* STBA[15:8] */
      mio283qt2_putreg(lcd, 0xed, 0x00c4);  /* STBA[7:0] */
      mio283qt2_putreg(lcd, 0xe8, 0x0040);  /* OPON[7:0] */
      mio283qt2_putreg(lcd, 0xe9, 0x0038);  /* OPON1[7:0] */
      mio283qt2_putreg(lcd, 0xf1, 0x0001);  /* OTPS1B */
      mio283qt2_putreg(lcd, 0xf2, 0x0010);  /* GEN */
      mio283qt2_putreg(lcd, 0x27, 0x00a3);

      /* Power voltage */

      mio283qt2_putreg(lcd, 0x1b, 0x001b);  /* VRH = 4.65 */
      mio283qt2_putreg(lcd, 0x1a, 0x0001);  /* BT */
      mio283qt2_putreg(lcd, 0x24, 0x002f);  /* VMH */
      mio283qt2_putreg(lcd, 0x25, 0x0057);  /* VML */

      /* Vcom offset */

      mio283qt2_putreg(lcd, 0x23, 0x008d);  /* For flicker adjust */

      /* Power on */

      mio283qt2_putreg(lcd, 0x18, 0x0036);
      mio283qt2_putreg(lcd, 0x19, 0x0001); /* Start oscillator */
      mio283qt2_putreg(lcd, 0x01, 0x0000); /* Wakeup */
      mio283qt2_putreg(lcd, 0x1f, 0x0088);
      up_mdelay(5);
      mio283qt2_putreg(lcd, 0x1f, 0x0080);
      up_mdelay(5);
      mio283qt2_putreg(lcd, 0x1f, 0x0090);
      up_mdelay(5);
      mio283qt2_putreg(lcd, 0x1f, 0x00d0);
      up_mdelay(5);

      /* Gamma 2.8 setting  */

      mio283qt2_putreg(lcd, 0x40, 0x0000);
      mio283qt2_putreg(lcd, 0x41, 0x0000);
      mio283qt2_putreg(lcd, 0x42, 0x0001);
      mio283qt2_putreg(lcd, 0x43, 0x0013);
      mio283qt2_putreg(lcd, 0x44, 0x0010);
      mio283qt2_putreg(lcd, 0x45, 0x0026);
      mio283qt2_putreg(lcd, 0x46, 0x0008);
      mio283qt2_putreg(lcd, 0x47, 0x0051);
      mio283qt2_putreg(lcd, 0x48, 0x0002);
      mio283qt2_putreg(lcd, 0x49, 0x0012);
      mio283qt2_putreg(lcd, 0x4a, 0x0018);
      mio283qt2_putreg(lcd, 0x4b, 0x0019);
      mio283qt2_putreg(lcd, 0x4c, 0x0014);

      mio283qt2_putreg(lcd, 0x50, 0x0019);
      mio283qt2_putreg(lcd, 0x51, 0x002f);
      mio283qt2_putreg(lcd, 0x52, 0x002c);
      mio283qt2_putreg(lcd, 0x53, 0x003e);
      mio283qt2_putreg(lcd, 0x54, 0x003f);
      mio283qt2_putreg(lcd, 0x55, 0x003f);
      mio283qt2_putreg(lcd, 0x56, 0x002e);
      mio283qt2_putreg(lcd, 0x57, 0x0077);
      mio283qt2_putreg(lcd, 0x58, 0x000b);
      mio283qt2_putreg(lcd, 0x59, 0x0006);
      mio283qt2_putreg(lcd, 0x5a, 0x0007);
      mio283qt2_putreg(lcd, 0x5b, 0x000d);
      mio283qt2_putreg(lcd, 0x5c, 0x001d);
      mio283qt2_putreg(lcd, 0x5d, 0x00cc);

      /* 4K Color Selection */

      mio283qt2_putreg(lcd, 0x17, 0x0003);
      mio283qt2_putreg(lcd, 0x17, 0x0005); /* 0x0005=65k, 0x0006=262k */

      /* Panel characteristics */

      mio283qt2_putreg(lcd, 0x36, 0x0000);

      /* Display Setting */

      mio283qt2_putreg(lcd, 0x01, 0x0000); /* IDMON=0, INVON=0, NORON=0, PTLON=0 */

#if defined(CONFIG_LCD_LANDSCAPE)
      mio283qt2_putreg(lcd, 0x16, 0x00a8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */
#elif defined(CONFIG_LCD_PORTRAIT)
      mio283qt2_putreg(lcd, 0x16, 0x0008); /* MY=0, MX=0, MV=0, ML=0, BGR=1 */
#elif defined(CONFIG_LCD_RLANDSCAPE)
      mio283qt2_putreg(lcd, 0x16, 0x0068); /* MY=0, MX=1, MV=1, ML=0, BGR=1 */
#elif defined(CONFIG_LCD_RPORTRAIT)
      mio283qt2_putreg(lcd, 0x16, 0x00c8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */
#endif

      /* Window setting */

      mio283qt2_setarea(lcd, 0, 0, (MIO283QT2_XRES-1), (MIO283QT2_YRES-1));
      ret = OK;
    }
#ifndef CONFIG_LCD_NOGETRUN
  else
    {
      lcddbg("Unsupported LCD type\n");
      ret = -ENODEV;
    }
#endif

  /* De-select the LCD */

  lcd->deselect(lcd);
  return ret;
}