acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
Arduino_ESP32RGBPanel.cpp (5380B)
      1 #include "Arduino_ESP32RGBPanel.h"
      2 
      3 #if defined(ESP32) && (CONFIG_IDF_TARGET_ESP32S3)
      4 
      5 Arduino_ESP32RGBPanel::Arduino_ESP32RGBPanel(
      6     int8_t de, int8_t vsync, int8_t hsync, int8_t pclk,
      7     int8_t r0, int8_t r1, int8_t r2, int8_t r3, int8_t r4,
      8     int8_t g0, int8_t g1, int8_t g2, int8_t g3, int8_t g4, int8_t g5,
      9     int8_t b0, int8_t b1, int8_t b2, int8_t b3, int8_t b4,
     10     uint16_t hsync_polarity, uint16_t hsync_front_porch, uint16_t hsync_pulse_width, uint16_t hsync_back_porch,
     11     uint16_t vsync_polarity, uint16_t vsync_front_porch, uint16_t vsync_pulse_width, uint16_t vsync_back_porch,
     12     uint16_t pclk_active_neg, int32_t prefer_speed, bool useBigEndian,
     13     uint16_t de_idle_high, uint16_t pclk_idle_high)
     14     : _de(de), _vsync(vsync), _hsync(hsync), _pclk(pclk),
     15       _r0(r0), _r1(r1), _r2(r2), _r3(r3), _r4(r4),
     16       _g0(g0), _g1(g1), _g2(g2), _g3(g3), _g4(g4), _g5(g5),
     17       _b0(b0), _b1(b1), _b2(b2), _b3(b3), _b4(b4),
     18       _hsync_polarity(hsync_polarity), _hsync_front_porch(hsync_front_porch), _hsync_pulse_width(hsync_pulse_width), _hsync_back_porch(hsync_back_porch),
     19       _vsync_polarity(vsync_polarity), _vsync_front_porch(vsync_front_porch), _vsync_pulse_width(vsync_pulse_width), _vsync_back_porch(vsync_back_porch),
     20       _pclk_active_neg(pclk_active_neg), _prefer_speed(prefer_speed), _useBigEndian(useBigEndian),
     21       _de_idle_high(de_idle_high), _pclk_idle_high(pclk_idle_high)
     22 {
     23 }
     24 
     25 bool Arduino_ESP32RGBPanel::begin(int32_t speed)
     26 {
     27   if (speed == GFX_NOT_DEFINED)
     28   {
     29 #ifdef CONFIG_SPIRAM_MODE_QUAD
     30     _speed = 6000000L;
     31 #else
     32     _speed = 12000000L;
     33 #endif
     34   }
     35   else
     36   {
     37     _speed = speed;
     38   }
     39 
     40   return true;
     41 }
     42 
     43 uint16_t *Arduino_ESP32RGBPanel::getFrameBuffer(int16_t w, int16_t h)
     44 {
     45   esp_lcd_rgb_panel_config_t *_panel_config = (esp_lcd_rgb_panel_config_t *)heap_caps_calloc(1, sizeof(esp_lcd_rgb_panel_config_t), MALLOC_CAP_DMA | MALLOC_CAP_INTERNAL);
     46 
     47   _panel_config->clk_src = LCD_CLK_SRC_PLL160M;
     48 
     49   _panel_config->timings.pclk_hz = (_prefer_speed == GFX_NOT_DEFINED) ? _speed : _prefer_speed;
     50   _panel_config->timings.h_res = w;
     51   _panel_config->timings.v_res = h;
     52   // The following parameters should refer to LCD spec
     53   _panel_config->timings.hsync_pulse_width = _hsync_pulse_width;
     54   _panel_config->timings.hsync_back_porch = _hsync_back_porch;
     55   _panel_config->timings.hsync_front_porch = _hsync_front_porch;
     56   _panel_config->timings.vsync_pulse_width = _vsync_pulse_width;
     57   _panel_config->timings.vsync_back_porch = _vsync_back_porch;
     58   _panel_config->timings.vsync_front_porch = _vsync_front_porch;
     59   _panel_config->timings.flags.hsync_idle_low = (_hsync_polarity == 0) ? 1 : 0;
     60   _panel_config->timings.flags.vsync_idle_low = (_vsync_polarity == 0) ? 1 : 0;
     61   _panel_config->timings.flags.de_idle_high = _de_idle_high;
     62   _panel_config->timings.flags.pclk_active_neg = _pclk_active_neg;
     63   _panel_config->timings.flags.pclk_idle_high = _pclk_idle_high;
     64 
     65   _panel_config->data_width = 16; // RGB565 in parallel mode, thus 16bit in width
     66   _panel_config->sram_trans_align = 8;
     67   _panel_config->psram_trans_align = 64;
     68   _panel_config->hsync_gpio_num = _hsync;
     69   _panel_config->vsync_gpio_num = _vsync;
     70   _panel_config->de_gpio_num = _de;
     71   _panel_config->pclk_gpio_num = _pclk;
     72 
     73   if (_useBigEndian)
     74   {
     75     _panel_config->data_gpio_nums[0] = _g3;
     76     _panel_config->data_gpio_nums[1] = _g4;
     77     _panel_config->data_gpio_nums[2] = _g5;
     78     _panel_config->data_gpio_nums[3] = _r0;
     79     _panel_config->data_gpio_nums[4] = _r1;
     80     _panel_config->data_gpio_nums[5] = _r2;
     81     _panel_config->data_gpio_nums[6] = _r3;
     82     _panel_config->data_gpio_nums[7] = _r4;
     83     _panel_config->data_gpio_nums[8] = _b0;
     84     _panel_config->data_gpio_nums[9] = _b1;
     85     _panel_config->data_gpio_nums[10] = _b2;
     86     _panel_config->data_gpio_nums[11] = _b3;
     87     _panel_config->data_gpio_nums[12] = _b4;
     88     _panel_config->data_gpio_nums[13] = _g0;
     89     _panel_config->data_gpio_nums[14] = _g1;
     90     _panel_config->data_gpio_nums[15] = _g2;
     91   }
     92   else
     93   {
     94     _panel_config->data_gpio_nums[0] = _b0;
     95     _panel_config->data_gpio_nums[1] = _b1;
     96     _panel_config->data_gpio_nums[2] = _b2;
     97     _panel_config->data_gpio_nums[3] = _b3;
     98     _panel_config->data_gpio_nums[4] = _b4;
     99     _panel_config->data_gpio_nums[5] = _g0;
    100     _panel_config->data_gpio_nums[6] = _g1;
    101     _panel_config->data_gpio_nums[7] = _g2;
    102     _panel_config->data_gpio_nums[8] = _g3;
    103     _panel_config->data_gpio_nums[9] = _g4;
    104     _panel_config->data_gpio_nums[10] = _g5;
    105     _panel_config->data_gpio_nums[11] = _r0;
    106     _panel_config->data_gpio_nums[12] = _r1;
    107     _panel_config->data_gpio_nums[13] = _r2;
    108     _panel_config->data_gpio_nums[14] = _r3;
    109     _panel_config->data_gpio_nums[15] = _r4;
    110   }
    111 
    112   _panel_config->disp_gpio_num = GPIO_NUM_NC;
    113 
    114   _panel_config->flags.disp_active_low = 0;
    115   _panel_config->flags.relax_on_idle = 0;
    116   _panel_config->flags.fb_in_psram = 1; // allocate frame buffer in PSRAM
    117 
    118   ESP_ERROR_CHECK(esp_lcd_new_rgb_panel(_panel_config, &_panel_handle));
    119   ESP_ERROR_CHECK(esp_lcd_panel_reset(_panel_handle));
    120   ESP_ERROR_CHECK(esp_lcd_panel_init(_panel_handle));
    121 
    122   uint16_t color = random(0xffff);
    123   ESP_ERROR_CHECK(_panel_handle->draw_bitmap(_panel_handle, 0, 0, 1, 1, &color));
    124 
    125   _rgb_panel = __containerof(_panel_handle, esp_rgb_panel_t, base);
    126 
    127   return (uint16_t *)_rgb_panel->fb;
    128 }
    129 #endif // #if defined(ESP32) && (CONFIG_IDF_TARGET_ESP32S3)