276 lines
9.2 KiB
C
276 lines
9.2 KiB
C
#include "depg0213_epd.h"
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uint8_t depg0213_dke_init_sequence[] = {
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0x01, 0x74, 0x54, // Set analog block control
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0x01, 0x7E, 0x3B, // Set digital block control
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0x03, 0x01, 0xF9, 0x00, 0x00, // Set display size and driver output control
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0x01, 0x3C, 0x01, // Set border
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0x01, 0x2C, 0x5A, // Set VCOM value
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0x01, 0x03, 0x17, // Gate voltage settings
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0x03, 0x04, 0x41, 0xAC, 0x32, // Source voltage settings
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0x01, 0x3A, 0x02, // Frame setting 1
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0x01, 0x3B, 0x0D // Frame setting 2
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};
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uint8_t depg0213_dke_lut_full[] = {
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0x80,0x60,0x40,0x00,0x00,0x00,0x00, //LUT0: BB: VS 0 ~7
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0x10,0x60,0x20,0x00,0x00,0x00,0x00, //LUT1: BW: VS 0 ~7
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0x80,0x60,0x40,0x00,0x00,0x00,0x00, //LUT2: WB: VS 0 ~7
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0x10,0x60,0x20,0x00,0x00,0x00,0x00, //LUT3: WW: VS 0 ~7
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0x00,0x00,0x00,0x00,0x00,0x00,0x00, //LUT4: VCOM: VS 0 ~7
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0x03,0x03,0x00,0x00,0x02, // TP0 A~D RP0
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0x09,0x09,0x00,0x00,0x02, // TP1 A~D RP1
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0x03,0x03,0x00,0x00,0x02, // TP2 A~D RP2
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0x00,0x00,0x00,0x00,0x00, // TP3 A~D RP3
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0x00,0x00,0x00,0x00,0x00, // TP4 A~D RP4
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0x00,0x00,0x00,0x00,0x00, // TP5 A~D RP5
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0x00,0x00,0x00,0x00,0x00, // TP6 A~D RP6
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};
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uint8_t depg0213_dke_lut_part[] = {
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0x00,0x00,0x00,0x00,0x00,0x00,0x00, //LUT0: BB: VS 0 ~7
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0x80,0x00,0x00,0x00,0x00,0x00,0x00, //LUT1: BW: VS 0 ~7
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0x40,0x00,0x00,0x00,0x00,0x00,0x00, //LUT2: WB: VS 0 ~7
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0x00,0x00,0x00,0x00,0x00,0x00,0x00, //LUT3: WW: VS 0 ~7
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0x00,0x00,0x00,0x00,0x00,0x00,0x00, //LUT4: VCOM: VS 0 ~7
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0x0A,0x00,0x00,0x00,0x00, // TP0 A~D RP0
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0x00,0x00,0x00,0x00,0x00, // TP1 A~D RP1
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0x00,0x00,0x00,0x00,0x00, // TP2 A~D RP2
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0x00,0x00,0x00,0x00,0x00, // TP3 A~D RP3
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0x00,0x00,0x00,0x00,0x00, // TP4 A~D RP4
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0x00,0x00,0x00,0x00,0x00, // TP5 A~D RP5
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0x00,0x00,0x00,0x00,0x00, // TP6 A~D RP6
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};
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depg0213_ret_t _depg0213_software_reset(depg0213_epd_t *epd) {
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uint8_t sw_reset_cmd = 0x12; // SW RST
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &sw_reset_cmd, 0x01));
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DEPG0213_ERROR_CHECK(epd->cb.poll_busy_cb(epd->user_data));
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return DEPG0213_OK;
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}
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depg0213_ret_t _depg0213_hardware_reset(depg0213_epd_t *epd) {
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DEPG0213_ERROR_CHECK(epd->cb.reset_cb(epd->user_data));
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DEPG0213_ERROR_CHECK(epd->cb.poll_busy_cb(epd->user_data));
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epd->deep_sleep = 0;
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return DEPG0213_OK;
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}
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depg0213_ret_t _depg0213_init_seq(depg0213_epd_t *epd) {
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uint16_t i = 0;
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while(i < sizeof(DEPG0213_PANEL_SELECTION)) {
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &DEPG0213_PANEL_SELECTION[i + 1], DEPG0213_PANEL_SELECTION[i] + 1));
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i += DEPG0213_PANEL_SELECTION[i] + 2;
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}
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return DEPG0213_OK;
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}
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depg0213_ret_t _depg0213_load_lut(depg0213_epd_t *epd) {
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#if(!DEPG0213_LUT_OTP)
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uint8_t lut_command = 0x32;
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &lut_command, 0x01));
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DEPG0213_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, DEPG0213_LUT_FULL_SELECTION, 70));
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#else
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uint8_t lut_command[5] = { 0x18, 0x80, 0x22, 0xB1, 0x20 };
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, lut_command, 0x02));
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &lut_command[2], 0x02));
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &lut_command[4], 0x01));
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// The end of the sequence is load LUT from OTP memory.
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DEPG0213_ERROR_CHECK(epd->cb.poll_busy_cb(epd->user_data));
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#endif
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return DEPG0213_OK;
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}
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depg0213_ret_t depg0213_epd_init(depg0213_epd_t *epd) {
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// Software reset follows hardware reset
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DEPG0213_ERROR_CHECK(_depg0213_hardware_reset(epd));
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DEPG0213_ERROR_CHECK(_depg0213_software_reset(epd));
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// Send initialization chants
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DEPG0213_ERROR_CHECK(_depg0213_init_seq(epd));
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// Write LUT
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DEPG0213_ERROR_CHECK(_depg0213_load_lut(epd));
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return DEPG0213_OK;
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}
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depg0213_ret_t depg0213_epd_update(depg0213_epd_t *epd) {
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if(epd->deep_sleep) {
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DEPG0213_ERROR_CHECK(depg0213_epd_init(epd));
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}
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uint8_t command[2] = { 0x22, 0xC7 };
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, command, 0x02));
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command[0] = 0x20;
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, command, 0x01));
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DEPG0213_ERROR_CHECK(epd->cb.poll_busy_cb(epd->user_data));
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return DEPG0213_OK;
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}
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depg0213_ret_t depg0213_epd_load(depg0213_epd_t *epd, uint8_t *bw_image, uint8_t *red_image,
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uint16_t x_start, uint16_t x_end, uint16_t y_start, uint16_t y_end) {
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if(epd->deep_sleep) {
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DEPG0213_ERROR_CHECK(depg0213_epd_init(epd));
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}
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DEPG0213_ERROR_CHECK(depg0213_epd_window(epd, epd->direction, x_start, x_end, y_start, y_end));
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uint8_t command[5] = { 0x4E, 0x0C - x_start / 8, 0x4F, 0xD3 - y_start, 0x00 };
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switch(epd->direction) {
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case DEPG0213_VERTICAL_INVERSE:
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// X->0x00
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command[1] = x_start / 8;
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// Y->0x00
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command[3] = y_start;
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break;
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case DEPG0213_HORIZONTAL: // X-Y inversed
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// X->0x00
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command[1] = y_start / 8;
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// Y->0xD3
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command[3] = 0xD3 - x_start;
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break;
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case DEPG0213_HORIZONTAL_INVERSE: // X-Y inversed
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// X->0x0C
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command[1] = 0x0C - y_start / 8;
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// Y-> 0x00
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command[3] = x_start;
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break;
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case DEPG0213_VERTICAL:
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default:
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break;
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}
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uint16_t transfer_bytes = (y_end - y_start + 1) * (x_end - x_start + 1) / 8;
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, command, 0x02));
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &command[2], 0x03));
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uint8_t wr_command;
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if(bw_image != NULL) {
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wr_command = 0x24;
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &wr_command, 0x01));
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DEPG0213_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, bw_image, transfer_bytes));
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}
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if(red_image != NULL) {
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wr_command = 0x26;
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &wr_command, 0x01));
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DEPG0213_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, red_image, transfer_bytes));
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}
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return DEPG0213_OK;
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}
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depg0213_ret_t depg0213_epd_deepsleep(depg0213_epd_t *epd) {
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if(epd->deep_sleep) return DEPG0213_OK;
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uint8_t deepsleep_command[2] = { 0x10, 0x01 };
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, deepsleep_command, 0x02));
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epd->deep_sleep = 1;
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return DEPG0213_OK;
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}
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depg0213_ret_t depg0213_epd_window(depg0213_epd_t *epd, depg0213_direction_t direction,
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uint16_t x_start, uint16_t x_end, uint16_t y_start, uint16_t y_end) {
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if(epd->deep_sleep) {
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DEPG0213_ERROR_CHECK(depg0213_epd_init(epd));
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}
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// Sanity checks
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if(x_end < x_start || y_end < y_start) return DEPG0213_ERROR;
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if(direction == DEPG0213_VERTICAL || direction == DEPG0213_VERTICAL_INVERSE) {
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if(x_end > 103 || y_end > 211) {
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return DEPG0213_ERROR;
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}
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if(x_start % 8 != 0) return DEPG0213_ERROR;
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if((x_end + 1) % 8 != 0) return DEPG0213_ERROR;
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}
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else {
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if(x_end > 211 || y_end > 103) {
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return DEPG0213_ERROR;
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}
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if(y_start % 8 != 0) return DEPG0213_ERROR;
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if((y_end + 1) % 8 != 0) return DEPG0213_ERROR;
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}
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// Default mode: VERTICAL, X: 0x0C->0x00, Y: 0xD3->0x00, AM-|Y-|X-
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uint8_t cmd_ram_x_address[] = { 0x44, 0x0C - x_start / 8, 0x0C - x_end / 8 }; // CMD, START, END
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uint8_t cmd_ram_y_address[] = { 0x45, 0xD3 - y_start, 0x00, 0xD3 - y_end, 0x00 }; // CMD, START_L, START_H, END_L, END_H
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uint8_t cmd_data_entry[] = { 0x11, 0x00 }; // CMD, SCAN_X->DESC, SCAN_Y->DESC, AM->0 [2:0]=AM|Y+|X+
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switch(direction) {
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case DEPG0213_VERTICAL_INVERSE:
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// START: 0x00, END: 0x0C
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cmd_ram_x_address[1] = x_start / 8;
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cmd_ram_x_address[2] = x_end / 8;
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// START: 0x00, END: 0xD3
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cmd_ram_y_address[1] = y_start;
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cmd_ram_y_address[3] = y_end;
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// AM-|Y+|X+
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cmd_data_entry[1] = 0x03;
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break;
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case DEPG0213_HORIZONTAL:
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// START: 0x00, END: 0x0C
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cmd_ram_x_address[1] = y_start / 8;
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cmd_ram_x_address[2] = y_end / 8;
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// NO CHANGE FOR Y AXIS
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cmd_ram_y_address[1] = 0xD3 - x_start;
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cmd_ram_y_address[3] = 0xD3 - x_end;
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// AM+|Y-|X+
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cmd_data_entry[1] = 0x05;
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break;
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case DEPG0213_HORIZONTAL_INVERSE:
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// NO CHANGE FOR X AXIS
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cmd_ram_x_address[1] = 0x0C - y_start / 8;
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cmd_ram_x_address[2] = 0x0C - y_end / 8;
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// START: 0x00, END: 0xD3
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cmd_ram_y_address[1] = x_start;
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cmd_ram_y_address[3] = x_end;
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// AM+|Y+|X-
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cmd_data_entry[1] = 0x06;
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break;
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case DEPG0213_VERTICAL:
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default:
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break;
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}
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// Write mode to screen.
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, cmd_ram_x_address, 0x03));
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, cmd_ram_y_address, 0x05));
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DEPG0213_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, cmd_data_entry, 0x02));
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epd->direction = direction;
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return DEPG0213_OK;
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} |