93 lines
3.5 KiB
C
93 lines
3.5 KiB
C
#include "gdew0213m21_epd.h"
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#include "gdew0213m21_data.h"
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des_epd_ret_t _des_epd_hardware_reset(des_epd_t *epd) {
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DES_EPD_ERROR_CHECK(epd->cb.reset_cb(epd->user_data));
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return DES_EPD_OK;
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}
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des_epd_ret_t _des_epd_upload_lut(des_epd_t *epd) {
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uint8_t cmd = 0x20;
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, DES_EPD_LUT_VCOM, sizeof(DES_EPD_LUT_VCOM)));
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cmd = 0x21;
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, DES_EPD_LUT_WW, sizeof(DES_EPD_LUT_WW)));
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cmd = 0x22;
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, DES_EPD_LUT_BW, sizeof(DES_EPD_LUT_BW)));
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cmd = 0x23;
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, DES_EPD_LUT_WB, sizeof(DES_EPD_LUT_WB)));
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cmd = 0x24;
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, DES_EPD_LUT_BB, sizeof(DES_EPD_LUT_BB)));
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return DES_EPD_OK;
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}
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des_epd_ret_t _des_epd_power_up(des_epd_t *epd) {
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uint8_t cmd = 0x04;
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.poll_busy_cb(epd->user_data));
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return DES_EPD_OK;
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}
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des_epd_ret_t _des_epd_power_down(des_epd_t *epd) {
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uint8_t cmd[5] = {0x50, 0xF7, 0x02, 0x07, 0xA5}; // VCOM and data interval setting
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, cmd, 0x02));
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd[2], 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.poll_busy_cb(epd->user_data));
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd[3], 0x02));
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return DES_EPD_OK;
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}
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des_epd_ret_t _des_epd_init_seq(des_epd_t *epd, uint8_t partial) {
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uint16_t i = 0;
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if(partial) {
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while(i < sizeof(DES_EPD_PANEL_SELECTION_PART)) {
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &DES_EPD_PANEL_SELECTION_PART[i + 1], DES_EPD_PANEL_SELECTION_PART[i] + 1));
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i += DES_EPD_PANEL_SELECTION_PART[i] + 2;
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}
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}
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else {
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while(i < sizeof(DES_EPD_PANEL_SELECTION)) {
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &DES_EPD_PANEL_SELECTION[i + 1], DES_EPD_PANEL_SELECTION[i] + 1));
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i += DES_EPD_PANEL_SELECTION[i] + 2;
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}
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}
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return DES_EPD_OK;
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}
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des_epd_ret_t des_epd_init(des_epd_t *epd, uint8_t partial) {
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DES_EPD_ERROR_CHECK(_des_epd_hardware_reset(epd));
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DES_EPD_ERROR_CHECK(_des_epd_init_seq(epd, partial));
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if(partial) {
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DES_EPD_ERROR_CHECK(_des_epd_upload_lut(epd));
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}
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DES_EPD_ERROR_CHECK(_des_epd_power_up(epd));
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uint8_t data[2756];
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memset(data, 0xFF, 2756);
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uint8_t cmd = 0x10;
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, data, 2756));
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memset(data, 0xFF, 2756);
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cmd = 0x13;
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.write_data_cb(epd->user_data, data, 2756));
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cmd = 0x12; // Refresh!!
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DES_EPD_ERROR_CHECK(epd->cb.write_cmd_cb(epd->user_data, &cmd, 0x01));
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DES_EPD_ERROR_CHECK(epd->cb.poll_busy_cb(epd->user_data));
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DES_EPD_ERROR_CHECK(_des_epd_power_down(epd));
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return DES_EPD_OK;
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} |