mirror of
https://github.com/espressif/esp-idf.git
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96 lines
4.4 KiB
C
96 lines
4.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "soc/soc_caps.h"
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#include "esp_check.h"
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#include "esp_lcd_panel_io_interface.h"
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#include "esp_lcd_mipi_dsi.h"
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#include "mipi_dsi_priv.h"
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static const char *TAG = "lcd.dsi.dbi";
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typedef struct esp_lcd_dbi_io_t esp_lcd_dbi_io_t;
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struct esp_lcd_dbi_io_t {
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esp_lcd_panel_io_t base; // Base class of generic lcd panel IO
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esp_lcd_dsi_bus_handle_t bus; // DSI bus handle
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uint8_t virtual_channel; // Virtual channel ID, index from 0
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int lcd_cmd_bits; // Bit-width of LCD command
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int lcd_param_bits; // Bit-width of LCD parameter
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};
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static esp_err_t panel_io_dbi_del(esp_lcd_panel_io_t *io);
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static esp_err_t panel_io_dbi_tx_param(esp_lcd_panel_io_t *io, int lcd_cmd, const void *param, size_t param_size);
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static esp_err_t panel_io_dbi_rx_param(esp_lcd_panel_io_t *io, int lcd_cmd, void *param, size_t param_size);
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esp_err_t esp_lcd_new_panel_io_dbi(esp_lcd_dsi_bus_handle_t bus, const esp_lcd_dbi_io_config_t *io_config, esp_lcd_panel_io_handle_t *ret_io)
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{
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ESP_RETURN_ON_FALSE(bus && io_config && ret_io, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
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ESP_RETURN_ON_FALSE(io_config->virtual_channel < 4, ESP_ERR_INVALID_ARG, TAG, "invalid virtual channel %d", io_config->virtual_channel);
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mipi_dsi_hal_context_t *hal = &bus->hal;
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esp_lcd_dbi_io_t *dbi_io = heap_caps_calloc(1, sizeof(esp_lcd_dbi_io_t), DSI_MEM_ALLOC_CAPS);
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ESP_RETURN_ON_FALSE(dbi_io, ESP_ERR_NO_MEM, TAG, "no memory for DBI IO");
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dbi_io->virtual_channel = io_config->virtual_channel;
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dbi_io->bus = bus;
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// Tear Effect is not supported
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mipi_dsi_host_ll_enable_te_ack(hal->host, false);
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// enable command ack, to ensure the reliability and integrity of the data transmission
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mipi_dsi_host_ll_enable_cmd_ack(hal->host, true);
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// using low power mode for sending generic MIPI DSI packets
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mipi_dsi_host_ll_set_gen_short_wr_speed_mode(hal->host, 0, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_gen_short_wr_speed_mode(hal->host, 1, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_gen_short_wr_speed_mode(hal->host, 2, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_gen_long_wr_speed_mode(hal->host, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_gen_short_rd_speed_mode(hal->host, 0, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_gen_short_rd_speed_mode(hal->host, 1, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_gen_short_rd_speed_mode(hal->host, 2, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_dcs_short_wr_speed_mode(hal->host, 0, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_dcs_short_wr_speed_mode(hal->host, 1, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_dcs_long_wr_speed_mode(hal->host, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_dcs_short_rd_speed_mode(hal->host, 0, MIPI_DSI_LL_TRANS_SPEED_LP);
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mipi_dsi_host_ll_set_mrps_speed_mode(hal->host, MIPI_DSI_LL_TRANS_SPEED_LP);
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dbi_io->base.del = panel_io_dbi_del;
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dbi_io->base.tx_param = panel_io_dbi_tx_param;
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dbi_io->base.rx_param = panel_io_dbi_rx_param;
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dbi_io->lcd_cmd_bits = io_config->lcd_cmd_bits;
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dbi_io->lcd_param_bits = io_config->lcd_param_bits;
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*ret_io = &dbi_io->base;
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return ESP_OK;
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}
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static esp_err_t panel_io_dbi_del(esp_lcd_panel_io_t *io)
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{
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esp_lcd_dbi_io_t *dbi_io = __containerof(io, esp_lcd_dbi_io_t, base);
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free(dbi_io);
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return ESP_OK;
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}
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static esp_err_t panel_io_dbi_tx_param(esp_lcd_panel_io_t *io, int lcd_cmd, const void *param, size_t param_size)
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{
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esp_lcd_dbi_io_t *dbi_io = __containerof(io, esp_lcd_dbi_io_t, base);
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esp_lcd_dsi_bus_handle_t bus = dbi_io->bus;
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mipi_dsi_hal_context_t *hal = &bus->hal;
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mipi_dsi_hal_host_gen_write_dcs_command(hal, dbi_io->virtual_channel, lcd_cmd, dbi_io->lcd_cmd_bits / 8, param, param_size);
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return ESP_OK;
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}
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static esp_err_t panel_io_dbi_rx_param(esp_lcd_panel_io_t *io, int lcd_cmd, void *param, size_t param_size)
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{
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esp_lcd_dbi_io_t *dbi_io = __containerof(io, esp_lcd_dbi_io_t, base);
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esp_lcd_dsi_bus_handle_t bus = dbi_io->bus;
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mipi_dsi_hal_context_t *hal = &bus->hal;
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mipi_dsi_hal_host_gen_read_dcs_command(hal, dbi_io->virtual_channel, lcd_cmd, dbi_io->lcd_cmd_bits / 8, param, param_size);
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return ESP_OK;
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}
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