1 files changed, 97 insertions, 0 deletions
diff --git a/boards/base/Mikromedia-Plus-STM32-M4/gaudio_play_board.h b/boards/base/Mikromedia-Plus-STM32-M4/gaudio_play_board.h
new file mode 100644
index 00000000..3efd162f
--- /dev/null
+++ b/boards/base/Mikromedia-Plus-STM32-M4/gaudio_play_board.h
@@ -0,0 +1,97 @@
+/*
+ * 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
+ */
+
+#ifndef GAUDIO_PLAY_BOARD_H
+#define GAUDIO_PLAY_BOARD_H
+
+#define SET_CS		palSetPad(GPIOD, GPIOD_MP3_CS)
+#define CLR_CS		palClearPad(GPIOD, GPIOD_MP3_CS)
+#define SET_RST		palSetPad(GPIOD, GPIOD_MP3_RST)
+#define CLR_RST		palClearPad(GPIOD, GPIOD_MP3_RST)
+#define SET_DCS		palSetPad(GPIOD, GPIOD_MP3_DCS)
+#define CLR_DCS		palClearPad(GPIOD, GPIOD_MP3_DCS)
+#define GET_DREQ	palReadPad(GPIOD, GPIOD_MP3_DREQ)
+#define SPI_PORT	&SPID2
+
+static const SPIConfig spicfg_init = {
+    0,
+	GPIOD,
+	GPIOD_MP3_CS,
+    SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0,
+};
+
+static const SPIConfig spicfg = {
+    0,
+	GPIOD,
+	GPIOD_MP3_CS,
+	SPI_CR1_BR_0,
+};
+
+// Initialise the board
+static inline void board_init(void) {
+	palSetPadMode(GPIOD, GPIOD_MP3_CS, PAL_MODE_OUTPUT_PUSHPULL);
+	palSetPadMode(GPIOD, GPIOD_MP3_RST, PAL_MODE_OUTPUT_PUSHPULL);
+	palSetPadMode(GPIOD, GPIOD_MP3_DCS, PAL_MODE_OUTPUT_PUSHPULL);
+	palSetPadMode(GPIOD, GPIOD_MP3_DREQ, PAL_MODE_INPUT);
+	SET_CS; SET_RST; SET_DCS;
+	spiStart(SPI_PORT, &spicfg_init);
+}
+
+// Chip is initialised enough so we can talk fast to it
+#define board_init_end()	spiStart(SPI_PORT, &spicfg)
+
+// Reset the board
+#define board_reset()		{ CLR_RST; gfxSleepMilliseconds(1); SET_RST; }
+
+// Returns the state of the dreq pin
+#define board_dreq()		GET_DREQ
+
+// Start a command write
+static inline void board_startcmdwrite(void) {
+	#if SPI_USE_MUTUAL_EXCLUSION
+		spiAcquireBus(SPI_PORT);
+	#endif
+	CLR_CS;
+}
+
+// End a command write
+static inline void board_endcmdwrite(void) {
+	SET_CS;
+	#if SPI_USE_MUTUAL_EXCLUSION
+		spiReleaseBus(SPI_PORT);
+	#endif
+}
+
+// Start a command read
+#define board_startcmdread()	board_startcmdwrite()
+
+// End a command read
+#define board_endcmdread()		board_endcmdwrite()
+
+// Start a data write
+static inline void board_startdatawrite(void) {
+	#if SPI_USE_MUTUAL_EXCLUSION
+		spiAcquireBus(SPI_PORT);
+	#endif
+	CLR_DCS;
+}
+
+// End a data write
+static inline void board_enddatawrite(void) {
+	#if SPI_USE_MUTUAL_EXCLUSION
+		spiReleaseBus(SPI_PORT);
+	#endif
+	SET_DCS;
+}
+
+// Write data to the SPI port
+#define board_spiwrite(buf, len)	spiSend(SPI_PORT, len, buf)
+
+// Read data from the SPI port
+#define board_spiread(buf, len)		spiReceive(SPI_PORT, len, buf)
+
+#endif	/* GAUDIO_PLAY_BOARD_H */