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drivers: display: ili9xxx: add support for ILI9488 controller

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Add support for the ILI9488 display controller.

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
This commit is contained in:
Gerard Marull-Paretas 2020-10-26 20:01:42 +01:00 • committed by Maureen Helm
commit 4812bb5175
6 changed files with 233 additions and 0 deletions
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65
drivers/display/display_ili9488.h Normal file
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/*
* Copyright (c) 2020 Teslabs Engineering S.L.
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_DRIVERS_DISPLAY_DISPLAY_ILI9488_H_
#define ZEPHYR_DRIVERS_DISPLAY_DISPLAY_ILI9488_H_
#include <device.h>
/* Commands/registers. */
#define ILI9488_FRMCTR1 0xB1
#define ILI9488_DISCTRL 0xB6
#define ILI9488_PWCTRL1 0xC0
#define ILI9488_PWCTRL2 0xC1
#define ILI9488_VMCTRL 0xC5
#define ILI9488_PGAMCTRL 0xE0
#define ILI9488_NGAMCTRL 0xE1
/* Commands/registers length. */
#define ILI9488_FRMCTR1_LEN 2U
#define ILI9488_DISCTRL_LEN 3U
#define ILI9488_PWCTRL1_LEN 2U
#define ILI9488_PWCTRL2_LEN 1U
#define ILI9488_VMCTRL_LEN 4U
#define ILI9488_PGAMCTRL_LEN 15U
#define ILI9488_NGAMCTRL_LEN 15U
/** X resolution (pixels). */
#define ILI9488_X_RES 320U
/** Y resolution (pixels). */
#define ILI9488_Y_RES 480U
/** ILI9488 registers to be initialized. */
struct ili9488_regs {
uint8_t frmctr1[ILI9488_FRMCTR1_LEN];
uint8_t disctrl[ILI9488_DISCTRL_LEN];
uint8_t pwctrl1[ILI9488_PWCTRL1_LEN];
uint8_t pwctrl2[ILI9488_PWCTRL2_LEN];
uint8_t vmctrl[ILI9488_VMCTRL_LEN];
uint8_t pgamctrl[ILI9488_PGAMCTRL_LEN];
uint8_t ngamctrl[ILI9488_NGAMCTRL_LEN];
};
/* Initializer macro for ILI9488 registers. */
#define ILI9488_REGS_INIT(n) \
static const struct ili9488_regs ili9xxx_regs_##n = { \
.frmctr1 = DT_PROP(DT_INST(n, ilitek_ili9488), frmctr1), \
.disctrl = DT_PROP(DT_INST(n, ilitek_ili9488), disctrl), \
.pwctrl1 = DT_PROP(DT_INST(n, ilitek_ili9488), pwctrl1), \
.pwctrl2 = DT_PROP(DT_INST(n, ilitek_ili9488), pwctrl2), \
.vmctrl = DT_PROP(DT_INST(n, ilitek_ili9488), vmctrl), \
.pgamctrl = DT_PROP(DT_INST(n, ilitek_ili9488), pgamctrl), \
.ngamctrl = DT_PROP(DT_INST(n, ilitek_ili9488), ngamctrl), \
}
/**
* @brief Initialize ILI9488 registers with DT values.
*
* @param dev ILI9488 device instance
* @return 0 on success, errno otherwise.
*/
int ili9488_regs_init(const struct device *dev);
#endif /* ZEPHYR_DRIVERS_DISPLAY_DISPLAY_ILI9488_H_ */