diff options
Diffstat (limited to 'drivers/gdisp/SSD2119/gdisp_lld_board_example_fsmc.h')
| -rw-r--r-- | drivers/gdisp/SSD2119/gdisp_lld_board_example_fsmc.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/drivers/gdisp/SSD2119/gdisp_lld_board_example_fsmc.h b/drivers/gdisp/SSD2119/gdisp_lld_board_example_fsmc.h new file mode 100644 index 00000000..88b30a58 --- /dev/null +++ b/drivers/gdisp/SSD2119/gdisp_lld_board_example_fsmc.h @@ -0,0 +1,164 @@ +/*
+ ChibiOS/GFX - Copyright (C) 2012
+ Joel Bodenmann aka Tectu <joel@unormal.org>
+
+ This file is part of ChibiOS/GFX.
+
+ ChibiOS/GFX is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/GFX is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file drivers/gdisp/SSD2119/gdisp_lld_board_example_fsmc.h
+ * @brief GDISP Graphic Driver subsystem board interface for the SSD2119 display.
+ *
+ * @addtogroup GDISP
+ * @{
+ */
+
+#ifndef _GDISP_LLD_BOARD_H
+#define _GDISP_LLD_BOARD_H
+
+#define GDISP_REG ((volatile uint16_t *) 0x60000000)[0] /* RS = 0 */
+#define GDISP_RAM ((volatile uint16_t *) 0x60020000)[0] /* RS = 1 */
+
+/**
+ * @brief Initialise the board for the display.
+ * @notes Performs the following functions:
+ * 1. initialise the io port used by your display
+ * 2. initialise the reset pin (initial state not-in-reset)
+ * 3. initialise the chip select pin (initial state not-active)
+ * 4. initialise the backlight pin (initial state back-light off)
+ *
+ * @notapi
+ */
+static __inline void init_board(void) {
+ const unsigned char FSMC_Bank;
+
+ #if defined(STM32F1XX) || defined(STM32F3XX)
+ /* FSMC setup for F1/F3 */
+ rccEnableAHB(RCC_AHBENR_FSMCEN, 0);
+
+ #if defined(GDISP_USE_DMA) && defined(GDISP_DMA_STREAM)
+ #error "DMA not implemented for F1/F3 Devices"
+ #endif
+ #elif defined(STM32F4XX) || defined(STM32F2XX)
+ /* STM32F2-F4 FSMC init */
+ rccEnableAHB3(RCC_AHB3ENR_FSMCEN, 0);
+
+ #if defined(GDISP_USE_DMA) && defined(GDISP_DMA_STREAM)
+ if (dmaStreamAllocate(GDISP_DMA_STREAM, 0, NULL, NULL)) chSysHalt();
+ dmaStreamSetMemory0(GDISP_DMA_STREAM, &GDISP_RAM);
+ dmaStreamSetMode(GDISP_DMA_STREAM, STM32_DMA_CR_PL(0) | STM32_DMA_CR_PSIZE_HWORD | STM32_DMA_CR_MSIZE_HWORD | STM32_DMA_CR_DIR_M2M);
+ #endif
+ #else
+ #error "FSMC not implemented for this device"
+ #endif
+
+ /* set pins to FSMC mode */
+ IOBus busD = {GPIOD, (1 << 0) | (1 << 1) | (1 << 4) | (1 << 5) | (1 << 7) | (1 << 8) |
+ (1 << 9) | (1 << 10) | (1 << 11) | (1 << 14) | (1 << 15), 0};
+
+ IOBus busE = {GPIOE, (1 << 7) | (1 << 8) | (1 << 9) | (1 << 10) | (1 << 11) | (1 << 12) |
+ (1 << 13) | (1 << 14) | (1 << 15), 0};
+
+ palSetBusMode(&busD, PAL_MODE_ALTERNATE(12));
+ palSetBusMode(&busE, PAL_MODE_ALTERNATE(12));
+
+ FSMC_Bank = 0;
+
+ /* FSMC timing */
+ FSMC_Bank1->BTCR[FSMC_Bank+1] = (FSMC_BTR1_ADDSET_1 | FSMC_BTR1_ADDSET_3) \
+ | (FSMC_BTR1_DATAST_1 | FSMC_BTR1_DATAST_3) \
+ | (FSMC_BTR1_BUSTURN_1 | FSMC_BTR1_BUSTURN_3) ;
+
+ /* Bank1 NOR/SRAM control register configuration
+ * This is actually not needed as already set by default after reset */
+ FSMC_Bank1->BTCR[FSMC_Bank] = FSMC_BCR1_MWID_0 | FSMC_BCR1_WREN | FSMC_BCR1_MBKEN;
+}
+
+/**
+ * @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 */
+}
+
+/**
+ * @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 */
+}
+
+/**
+ * @brief Take exclusive control of the bus
+ *
+ * @notapi
+ */
+static __inline void acquire_bus(void) {
+ /* Nothing to do here */
+}
+
+/**
+ * @brief Release exclusive control of the bus
+ *
+ * @notapi
+ */
+static __inline void release_bus(void) {
+ /* Nothing to do here */
+}
+
+/**
+ * @brief Send data to the index register.
+ *
+ * @param[in] index The index register to set
+ *
+ * @notapi
+ */
+static __inline void write_index(uint16_t index) { GDISP_REG = index; }
+
+/**
+ * @brief Send data to the lcd.
+ *
+ * @param[in] data The data to send
+ *
+ * @notapi
+ */
+static __inline void write_data(uint16_t data) { GDISP_RAM = data; }
+
+#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) { return GDISP_RAM; }
+#endif
+
+#endif /* _GDISP_LLD_BOARD_H */
+/** @} */
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