diff options
Diffstat (limited to 'drivers/gdisp/ILI9481/gdisp_lld_board_firebullstm32f103.h')
-rw-r--r-- | drivers/gdisp/ILI9481/gdisp_lld_board_firebullstm32f103.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/drivers/gdisp/ILI9481/gdisp_lld_board_firebullstm32f103.h b/drivers/gdisp/ILI9481/gdisp_lld_board_firebullstm32f103.h new file mode 100644 index 00000000..6e4edda9 --- /dev/null +++ b/drivers/gdisp/ILI9481/gdisp_lld_board_firebullstm32f103.h @@ -0,0 +1,145 @@ +/* + * This file is subject to the terms of the GFX License, v1.0. If a copy of + * the license was not distributed with this file, you can obtain one at: + * + * http://chibios-gfx.com/license.html + */ + +/** + * @file drivers/gdisp/ILI9481/gdisp_lld_board_firebullstm32f103.h + * @brief GDISP Graphics Driver subsystem low level driver source for + * the ILI9481 and compatible HVGA display + * + * @addtogroup GDISP + * @{ + */ + +#ifndef _GDISP_LLD_BOARD_H +#define _GDISP_LLD_BOARD_H + +#define SET_CS palSetPad(GPIOD, 12); +#define CLR_CS palClearPad(GPIOD, 12); +#define SET_RS palSetPad(GPIOD, 13); +#define CLR_RS palClearPad(GPIOD, 13); +#define SET_WR palSetPad(GPIOD, 14); +#define CLR_WR palClearPad(GPIOD, 14); +#define SET_RD palSetPad(GPIOD, 15); +#define CLR_RD palClearPad(GPIOD, 15); + +/** + * @brief Initialise the board for the display. + * @notes This board definition uses GPIO and assumes exclusive access to these GPIO pins + * + * @notapi + */ +static inline void init_board(void) { + palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOD, 12, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOD, 13, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOD, 14, PAL_MODE_OUTPUT_PUSHPULL); + palSetPadMode(GPIOD, 15, PAL_MODE_OUTPUT_PUSHPULL); + + // Configure the pins to a well know state + SET_RS; + SET_RD; + SET_WR; + CLR_CS; +} + + +/** + * @brief Set or clear the lcd reset pin. + * + * @param[in] state TRUE = lcd in reset, FALSE = normal operation + * + * @notapi + */ +static inline void setpin_reset(bool_t state) { + (void) state; + /* Nothing to do here - reset pin tied to Vcc */ +} + +/** + * @brief Set the lcd back-light level. + * + * @param[in] percent 0 to 100% + * + * @notapi + */ +static inline void set_backlight(uint8_t percent) { + (void) percent; + /* Nothing to do here - Backlight always on */ +} + +/** + * @brief Take exclusive control of the bus + * + * @notapi + */ +static inline void acquire_bus(void) { + /* Nothing to do here since LCD is the only device on that bus */ +} + +/** + * @brief Release exclusive control of the bus + * + * @notapi + */ +static inline void release_bus(void) { + /* Nothing to do here since LCD is the only device on that bus */ +} + +/** + * @brief Send data to the index register. + * + * @param[in] index The index register to set + * + * @notapi + */ +static inline void write_index(uint16_t index) { + palWritePort(GPIOE, index); + CLR_RS; CLR_WR; SET_WR; SET_RS; +} + +/** + * @brief Send data to the lcd. + * + * @param[in] data The data to send + * + * @notapi + */ +static inline void write_data(uint16_t data) { + palWritePort(GPIOE, data); + CLR_WR; SET_WR; +} + +#if GDISP_HARDWARE_READPIXEL || GDISP_HARDWARE_SCROLL || defined(__DOXYGEN__) +/** + * @brief Read data from the lcd. + * + * @return The data from the lcd + * @note The chip select may need to be asserted/de-asserted + * around the actual spi read + * + * @notapi + */ +static inline uint16_t read_data(void) { + uint16_t value; + + // change pin mode to digital input + palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_INPUT); + + CLR_RD; + value = palReadPort(GPIOE); + value = palReadPort(GPIOE); + SET_RD; + + // change pin mode back to digital output + palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL); + + return value; +} +#endif + +#endif /* _GDISP_LLD_BOARD_H */ +/** @} */ |