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path: root/fw/fe310/eos/dev/lcd.c
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-rw-r--r--fw/fe310/eos/dev/lcd.c546
1 files changed, 546 insertions, 0 deletions
diff --git a/fw/fe310/eos/dev/lcd.c b/fw/fe310/eos/dev/lcd.c
new file mode 100644
index 0000000..3080a13
--- /dev/null
+++ b/fw/fe310/eos/dev/lcd.c
@@ -0,0 +1,546 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "eos.h"
+#include "timer.h"
+#include "i2s.h"
+#include "net.h"
+#include "spi_dev.h"
+#include "eve/eve.h"
+
+#include "board.h"
+
+#include "lcd.h"
+
+#define BIT_PUT(b, pin) if (b) GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << (pin)); else GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << (pin));
+#define BIT_GET(pin) ((GPIO_REG(GPIO_INPUT_VAL) & (1 << (pin))) >> (pin))
+
+#define SCK_UP { GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << IOF_SPI1_SCK); }
+#define SCK_DN { GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << IOF_SPI1_SCK); }
+
+static inline void _sleep(int n) {
+ volatile int x = n;
+
+ while(x) x--;
+}
+
+int eos_lcd_select(void) {
+ if (eos_i2s_running()) return EOS_ERR_BUSY;
+ if (eos_spi_dev() != EOS_SPI_DEV_NET) return EOS_ERR_BUSY;
+
+ eos_net_stop();
+
+ GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << LCD_PIN_CS);
+
+ GPIO_REG(GPIO_INPUT_EN) &= ~(1 << LCD_PIN_CS);
+ GPIO_REG(GPIO_OUTPUT_EN) |= (1 << LCD_PIN_CS);
+
+ GPIO_REG(GPIO_IOF_EN) &= ~SPI_IOF_MASK;
+
+ return EOS_OK;
+}
+
+void eos_lcd_deselect(void) {
+ GPIO_REG(GPIO_IOF_EN) |= SPI_IOF_MASK;
+ eos_net_start();
+}
+
+void eos_lcd_cs_set(void) {
+ GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << LCD_PIN_CS);
+}
+
+void eos_lcd_cs_clear(void) {
+ GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << LCD_PIN_CS);
+}
+
+/* sck frequency for r/w operations is 0.8Mhz */
+void eos_lcd_write(uint8_t dc, uint8_t data) {
+ int i;
+
+ BIT_PUT(dc, IOF_SPI1_MOSI);
+ _sleep(10);
+ SCK_UP;
+ for (i=0; i<8; i++) {
+ _sleep(10);
+ SCK_DN;
+ BIT_PUT(data & 0x80, IOF_SPI1_MOSI);
+ _sleep(10);
+ SCK_UP;
+ data = data << 1;
+ }
+ _sleep(10);
+ SCK_DN;
+}
+
+void eos_lcd_read(uint8_t *data) {
+ int i;
+
+ *data = 0;
+ for (i=0; i<8; i++) {
+ _sleep(10);
+ *data = *data << 1;
+ *data |= BIT_GET(IOF_SPI1_MISO);
+ SCK_UP;
+ _sleep(10);
+ SCK_DN;
+ }
+}
+
+static int _init(void) {
+ int rv;
+ uint8_t chip_id[3];
+
+ rv = eos_lcd_select();
+ if (rv) return rv;
+ eos_lcd_cs_set();
+
+ /* LCD Setting */
+ eos_lcd_write(0, 0xFF); // change to Page 1 CMD
+ eos_lcd_write(1, 0xFF);
+ eos_lcd_write(1, 0x98);
+ eos_lcd_write(1, 0x06);
+ eos_lcd_write(1, 0x04);
+ eos_lcd_write(1, 0x01);
+
+ // eos_lcd_write(0, 0x08); // Output SDA
+ // eos_lcd_write(1, 0x10);
+
+ eos_lcd_write(0, 0xFE); // enable read
+ eos_lcd_write(1, 0x81);
+
+ eos_lcd_write(0, 0x00); // RDID4
+ eos_lcd_read(&chip_id[0]);
+
+ eos_lcd_write(0, 0x01);
+ eos_lcd_read(&chip_id[1]);
+
+ eos_lcd_write(0, 0x02);
+ eos_lcd_read(&chip_id[2]);
+
+ printf("LCD CHIP ID: %.2x%.2x%.2x\n", chip_id[0], chip_id[1], chip_id[2]);
+
+ eos_lcd_write(0, 0xFE); // disable read
+ eos_lcd_write(1, 0x00);
+
+ if (memcmp(chip_id, "\x98\x06\x04", sizeof(chip_id))) {
+ return EOS_ERR_ABSENT;
+ }
+
+ eos_lcd_write(0, 0x20); // set DE/VSYNC mode
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x21); // DE = 1 Active
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x30); // resolution setting 480 X 854
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x31); // inversion setting 2-dot
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x40); // BT AVDD,AVDD
+ eos_lcd_write(1, 0x16);
+
+ eos_lcd_write(0, 0x41);
+ eos_lcd_write(1, 0x33); // 22
+
+ eos_lcd_write(0, 0x42);
+ eos_lcd_write(1, 0x03); // VGL=DDVDH+VCIP-DDVDL, VGH=2DDVDL-VCIP
+
+ eos_lcd_write(0, 0x43);
+ eos_lcd_write(1, 0x09); // set VGH clamp level
+
+ eos_lcd_write(0, 0x44);
+ eos_lcd_write(1, 0x06); // set VGL clamp level
+
+ eos_lcd_write(0, 0x50); // VREG1
+ eos_lcd_write(1, 0x88);
+
+ eos_lcd_write(0, 0x51); // VREG2
+ eos_lcd_write(1, 0x88);
+
+ eos_lcd_write(0, 0x52); // flicker MSB
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x53); // flicker LSB
+ eos_lcd_write(1, 0x49); // VCOM
+
+ eos_lcd_write(0, 0x55); // flicker
+ eos_lcd_write(1, 0x49);
+
+ eos_lcd_write(0, 0x60);
+ eos_lcd_write(1, 0x07);
+
+ eos_lcd_write(0, 0x61);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x62);
+ eos_lcd_write(1, 0x07);
+
+ eos_lcd_write(0, 0x63);
+ eos_lcd_write(1, 0x00);
+
+ /* Gamma Setting */
+ eos_lcd_write(0, 0xA0); // positive Gamma
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0xA1);
+ eos_lcd_write(1, 0x09);
+
+ eos_lcd_write(0, 0xA2);
+ eos_lcd_write(1, 0x11);
+
+ eos_lcd_write(0, 0xA3);
+ eos_lcd_write(1, 0x0B);
+
+ eos_lcd_write(0, 0xA4);
+ eos_lcd_write(1, 0x05);
+
+ eos_lcd_write(0, 0xA5);
+ eos_lcd_write(1, 0x08);
+
+ eos_lcd_write(0, 0xA6);
+ eos_lcd_write(1, 0x06);
+
+ eos_lcd_write(0, 0xA7);
+ eos_lcd_write(1, 0x04);
+
+ eos_lcd_write(0, 0xA8);
+ eos_lcd_write(1, 0x09);
+
+ eos_lcd_write(0, 0xA9);
+ eos_lcd_write(1, 0x0C);
+
+ eos_lcd_write(0, 0xAA);
+ eos_lcd_write(1, 0x15);
+
+ eos_lcd_write(0, 0xAB);
+ eos_lcd_write(1, 0x08);
+
+ eos_lcd_write(0, 0xAC);
+ eos_lcd_write(1, 0x0F);
+
+ eos_lcd_write(0, 0xAD);
+ eos_lcd_write(1, 0x12);
+
+ eos_lcd_write(0, 0xAE);
+ eos_lcd_write(1, 0x09);
+
+ eos_lcd_write(0, 0xAF);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0xC0); // negative Gamma
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0xC1);
+ eos_lcd_write(1, 0x09);
+
+ eos_lcd_write(0, 0xC2);
+ eos_lcd_write(1, 0x10);
+
+ eos_lcd_write(0, 0xC3);
+ eos_lcd_write(1, 0x0C);
+
+ eos_lcd_write(0, 0xC4);
+ eos_lcd_write(1, 0x05);
+
+ eos_lcd_write(0, 0xC5);
+ eos_lcd_write(1, 0x08);
+
+ eos_lcd_write(0, 0xC6);
+ eos_lcd_write(1, 0x06);
+
+ eos_lcd_write(0, 0xC7);
+ eos_lcd_write(1, 0x04);
+
+ eos_lcd_write(0, 0xC8);
+ eos_lcd_write(1, 0x08);
+
+ eos_lcd_write(0, 0xC9);
+ eos_lcd_write(1, 0x0C);
+
+ eos_lcd_write(0, 0xCA);
+ eos_lcd_write(1, 0x14);
+
+ eos_lcd_write(0, 0xCB);
+ eos_lcd_write(1, 0x08);
+
+ eos_lcd_write(0, 0xCC);
+ eos_lcd_write(1, 0x0F);
+
+ eos_lcd_write(0, 0xCD);
+ eos_lcd_write(1, 0x11);
+
+ eos_lcd_write(0, 0xCE);
+ eos_lcd_write(1, 0x09);
+
+ eos_lcd_write(0, 0xCF);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0xFF); // change to Page 6 CMD for GIP timing
+ eos_lcd_write(1, 0xFF);
+ eos_lcd_write(1, 0x98);
+ eos_lcd_write(1, 0x06);
+ eos_lcd_write(1, 0x04);
+ eos_lcd_write(1, 0x06);
+
+ eos_lcd_write(0, 0x00);
+ eos_lcd_write(1, 0x20);
+
+ eos_lcd_write(0, 0x01);
+ eos_lcd_write(1, 0x0A);
+
+ eos_lcd_write(0, 0x02);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x03);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x04);
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x05);
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x06);
+ eos_lcd_write(1, 0x98);
+
+ eos_lcd_write(0, 0x07);
+ eos_lcd_write(1, 0x06);
+
+ eos_lcd_write(0, 0x08);
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x09);
+ eos_lcd_write(1, 0x80);
+
+ eos_lcd_write(0, 0x0A);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x0B);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x0C);
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x0D);
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x0E);
+ eos_lcd_write(1, 0x05);
+
+ eos_lcd_write(0, 0x0F);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x10);
+ eos_lcd_write(1, 0xF0);
+
+ eos_lcd_write(0, 0x11);
+ eos_lcd_write(1, 0xF4);
+
+ eos_lcd_write(0, 0x12);
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x13);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x14);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x15);
+ eos_lcd_write(1, 0xC0);
+
+ eos_lcd_write(0, 0x16);
+ eos_lcd_write(1, 0x08);
+
+ eos_lcd_write(0, 0x17);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x18);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x19);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x1A);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x1B);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x1C);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x1D);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x20);
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x21);
+ eos_lcd_write(1, 0x23);
+
+ eos_lcd_write(0, 0x22);
+ eos_lcd_write(1, 0x45);
+
+ eos_lcd_write(0, 0x23);
+ eos_lcd_write(1, 0x67);
+
+ eos_lcd_write(0, 0x24);
+ eos_lcd_write(1, 0x01);
+
+ eos_lcd_write(0, 0x25);
+ eos_lcd_write(1, 0x23);
+
+ eos_lcd_write(0, 0x26);
+ eos_lcd_write(1, 0x45);
+
+ eos_lcd_write(0, 0x27);
+ eos_lcd_write(1, 0x67);
+
+ eos_lcd_write(0, 0x30);
+ eos_lcd_write(1, 0x11);
+
+ eos_lcd_write(0, 0x31);
+ eos_lcd_write(1, 0x11);
+
+ eos_lcd_write(0, 0x32);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x33);
+ eos_lcd_write(1, 0xEE);
+
+ eos_lcd_write(0, 0x34);
+ eos_lcd_write(1, 0xFF);
+
+ eos_lcd_write(0, 0x35);
+ eos_lcd_write(1, 0xBB);
+
+ eos_lcd_write(0, 0x36);
+ eos_lcd_write(1, 0xAA);
+
+ eos_lcd_write(0, 0x37);
+ eos_lcd_write(1, 0xDD);
+
+ eos_lcd_write(0, 0x38);
+ eos_lcd_write(1, 0xCC);
+
+ eos_lcd_write(0, 0x39);
+ eos_lcd_write(1, 0x66);
+
+ eos_lcd_write(0, 0x3A);
+ eos_lcd_write(1, 0x77);
+
+ eos_lcd_write(0, 0x3B);
+ eos_lcd_write(1, 0x22);
+
+ eos_lcd_write(0, 0x3C);
+ eos_lcd_write(1, 0x22);
+
+ eos_lcd_write(0, 0x3D);
+ eos_lcd_write(1, 0x22);
+
+ eos_lcd_write(0, 0x3E);
+ eos_lcd_write(1, 0x22);
+
+ eos_lcd_write(0, 0x3F);
+ eos_lcd_write(1, 0x22);
+
+ eos_lcd_write(0, 0x40);
+ eos_lcd_write(1, 0x22);
+
+ eos_lcd_write(0, 0xFF); // change to Page 7 CMD for GIP timing
+ eos_lcd_write(1, 0xFF);
+ eos_lcd_write(1, 0x98);
+ eos_lcd_write(1, 0x06);
+ eos_lcd_write(1, 0x04);
+ eos_lcd_write(1, 0x07);
+
+ eos_lcd_write(0, 0x17);
+ eos_lcd_write(1, 0x22);
+
+ eos_lcd_write(0, 0x02);
+ eos_lcd_write(1, 0x77);
+
+ eos_lcd_write(0, 0x26);
+ eos_lcd_write(1, 0xB2);
+
+ eos_lcd_write(0, 0xFF); // change to Page 0 CMD for normal command
+ eos_lcd_write(1, 0xFF);
+ eos_lcd_write(1, 0x98);
+ eos_lcd_write(1, 0x06);
+ eos_lcd_write(1, 0x04);
+ eos_lcd_write(1, 0x00);
+
+ eos_lcd_write(0, 0x3A);
+ eos_lcd_write(1, 0x70); // 24BIT
+
+ eos_lcd_write(0, 0x11);
+ eos_time_sleep(120);
+ eos_lcd_write(0, 0x29);
+ eos_time_sleep(25);
+
+ eos_lcd_cs_clear();
+ eos_lcd_deselect();
+
+ return EOS_OK;
+}
+
+int eos_lcd_init(uint8_t wakeup_cause) {
+ eos_spi_select(EOS_SPI_DEV_EVE);
+ eve_gpio_set(EVE_GPIO_LCD_EN, 1);
+ eos_spi_deselect();
+ eos_time_sleep(200);
+
+ return _init();
+}
+
+int eos_lcd_sleep(void) {
+ int rv;
+
+ rv = eos_lcd_select();
+ if (rv) return rv;
+
+ eos_lcd_cs_set();
+
+ eos_lcd_write(0, 0x28);
+ eos_time_sleep(10);
+ eos_lcd_write(0, 0x10);
+
+ eos_lcd_cs_clear();
+ eos_lcd_deselect();
+
+ eos_spi_select(EOS_SPI_DEV_EVE);
+ eve_gpio_set(EVE_GPIO_LCD_EN, 0);
+ eos_spi_deselect();
+
+ return EOS_OK;
+}
+
+int eos_lcd_wake(void) {
+ int rv;
+
+ eos_spi_select(EOS_SPI_DEV_EVE);
+ eve_gpio_set(EVE_GPIO_LCD_EN, 1);
+ eos_spi_deselect();
+ eos_time_sleep(200);
+
+ rv = eos_lcd_select();
+ if (rv) return rv;
+
+ eos_lcd_cs_set();
+
+ eos_lcd_write(0, 0x11);
+ eos_time_sleep(120);
+ eos_lcd_write(0, 0x29);
+
+ eos_lcd_cs_clear();
+ eos_lcd_deselect();
+
+ return EOS_OK;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 02:41:41 +0000