From cf22a7f8e377bd6ae94c982aff0c7410013e6ed2 Mon Sep 17 00:00:00 2001
From: inmarket <andrewh@inmarket.com.au>
Date: Fri, 28 Mar 2014 08:51:36 +1000
Subject: Example spi board config for ILI9341
---
boards/addons/gdisp/board_ILI9341_spi.h | 222 ++++++++++++++++++++++++++++++++
1 file changed, 222 insertions(+)
create mode 100644 boards/addons/gdisp/board_ILI9341_spi.h
diff --git a/boards/addons/gdisp/board_ILI9341_spi.h b/boards/addons/gdisp/board_ILI9341_spi.h
new file mode 100644
index 00000000..4b3b058d
--- /dev/null
+++ b/boards/addons/gdisp/board_ILI9341_spi.h
@@ -0,0 +1,222 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ * http://ugfx.org/license.html
+ */
+
+/**
+ * @file boards/addons/gdisp/board_ILI9341_spi.h
+ * @brief GDISP Graphic Driver subsystem board interface for the ILI9341 display.
+ *
+ * @note This file contains a mix of hardware specific and operating system specific
+ * code. You will need to change it for your CPU and/or operating system.
+ */
+
+#ifndef _GDISP_LLD_BOARD_H
+#define _GDISP_LLD_BOARD_H
+
+#define LCD_PORT GPIOB
+#define LCD_MOSI 15
+#define LCD_MISO 14
+#define LCD_SCK 13
+#define LCD_CS 12
+#define LCD_DC 11
+#define LCD_RES 10
+
+#define LCD_DC_CMD palClearPad(LCD_PORT, LCD_DC)
+#define LCD_DC_DATA palSetPad(LCD_PORT, LCD_DC)
+#define LCD_SCK_SET palSetPad(LCD_PORT, LCD_SCK)
+#define LCD_SCK_RES palClearPad(LCD_PORT, LCD_SCK)
+#define LCD_CS_RES palSetPad(LCD_PORT, LCD_CS)
+#define LCD_CS_SET palClearPad(LCD_PORT, LCD_CS)
+
+/**
+ * SPI configuration structure.
+ * Speed 12 MHz, CPHA=0, CPOL=0, 8bits frames, MSb transmitted first.
+ * Soft slave select.
+ */
+static const SPIConfig spi2cfg = {
+ NULL,
+ LCD_PORT,
+ LCD_CS,
+ (SPI_CR1_MSTR | SPI_CR1_SPE | SPI_CR1_SSM | SPI_CR1_SSI)
+};
+
+static void send_data(uint16_t data);
+
+/**
+ * @brief Initialise the board for the display.
+ *
+ * @param[in] g The GDisplay structure
+ *
+ * @note Set the g->board member to whatever is appropriate. For multiple
+ * displays this might be a pointer to the appropriate register set.
+ *
+ * @notapi
+ */
+static inline void init_board(GDisplay *g) {
+
+ // As we are not using multiple displays we set g->board to NULL as we don't use it.
+ g->board = 0;
+
+ palSetPadMode(LCD_PORT, LCD_CS, PAL_MODE_OUTPUT_PUSHPULL);
+ palSetPadMode(LCD_PORT, LCD_DC, PAL_MODE_OUTPUT_PUSHPULL);
+ palSetPadMode(LCD_PORT, LCD_RES, PAL_MODE_OUTPUT_PUSHPULL);
+
+ spiStart(&SPID2, &spi2cfg);
+ spiSelectI(&SPID2);
+}
+
+/**
+ * @brief After the initialisation.
+ *
+ * @param[in] g The GDisplay structure
+ *
+ * @notapi
+ */
+static inline void post_init_board(GDisplay *g) {
+ (void) g;
+}
+
+/**
+ * @brief Set or clear the lcd reset pin.
+ *
+ * @param[in] g The GDisplay structure
+ * @param[in] state TRUE = lcd in reset, FALSE = normal operation
+ *
+ * @notapi
+ */
+static inline void setpin_reset(GDisplay *g, bool_t state) {
+ (void) g;
+
+ if (state == TRUE) {
+ palClearPad(LCD_PORT, LCD_RES);
+ } else {
+ palSetPad(LCD_PORT, LCD_RES);
+ }
+}
+
+/**
+ * @brief Set the lcd back-light level.
+ *
+ * @param[in] g The GDisplay structure
+ * @param[in] percent 0 to 100%
+ *
+ * @notapi
+ */
+static inline void set_backlight(GDisplay *g, uint8_t percent) {
+ (void) g;
+ (void) percent;
+}
+
+/**
+ * @brief Take exclusive control of the bus
+ *
+ * @param[in] g The GDisplay structure
+ *
+ * @notapi
+ */
+static inline void acquire_bus(GDisplay *g) {
+ (void) g;
+}
+
+/**
+ * @brief Release exclusive control of the bus
+ *
+ * @param[in] g The GDisplay structure
+ *
+ * @notapi
+ */
+static inline void release_bus(GDisplay *g) {
+ (void) g;
+}
+
+/**
+ * @brief Send data to the lcd.
+ *
+ * @param[in] data The data to send
+ *
+ * @notapi
+ */
+static inline void send_data(uint16_t data) {
+// http://forum.easyelectronics.ru/viewtopic.php?p=262122#p262122
+ while (!(SPI2->SR & SPI_SR_TXE)); // ��� ����� �� �������� ��������� - � ������ �� SPI_DR
+ SPI2->DR = data; // ��������� � SPI_DR ��� �������
+
+}
+
+/**
+ * @brief Send data to the index register.
+ *
+ * @param[in] g The GDisplay structure
+ * @param[in] index The index register to set
+ *
+ * @notapi
+ */
+static inline void write_index(GDisplay *g, uint16_t index) {
+ (void) g;
+
+ while (SPI2->SR & SPI_SR_BSY);
+ LCD_CS_RES;
+ LCD_DC_CMD; // ��������� ������� � ����� ������
+ LCD_CS_SET;
+ send_data(index);
+ while (SPI2->SR & SPI_SR_BSY); // ���� ���� ���������� (==1) -- ������ SPI �����
+ /* ������ ���� �������� ��������� �������� ������� ��������� � ���������� �����
+ * ����� ������ ��� �������� �������� � ��������.
+ */
+ LCD_DC_DATA; // ��������� ������� � ����� ������
+}
+
+/**
+ * @brief Send data to the lcd with DC control.
+ *
+ * @param[in] g The GDisplay structure
+ * @param[in] data The data to send
+ *
+ * @notapi
+ */
+static inline void write_data(GDisplay *g, uint16_t data) {
+ (void) g;
+
+ send_data(data);
+}
+
+/**
+ * @brief Set the bus in read mode
+ *
+ * @param[in] g The GDisplay structure
+ *
+ * @notapi
+ */
+static inline void setreadmode(GDisplay *g) {
+ (void) g;
+}
+
+/**
+ * @brief Set the bus back into write mode
+ *
+ * @param[in] g The GDisplay structure
+ *
+ * @notapi
+ */
+static inline void setwritemode(GDisplay *g) {
+ (void) g;
+}
+
+/**
+ * @brief Read data from the lcd.
+ * @return The data from the lcd
+ *
+ * @param[in] g The GDisplay structure
+ *
+ * @notapi
+ */
+static inline uint16_t read_data(GDisplay *g) {
+ (void) g;
+ return 0;
+}
+
+#endif /* _GDISP_LLD_BOARD_H */
+
--
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