New PWM audio driver for audio output using a digital pin on a CPU

1 files changed, 38 insertions, 0 deletions

diff --git a/drivers/gaudio/pwm/gaudio_play_board_template.h b/drivers/gaudio/pwm/gaudio_play_board_template.h
new file mode 100644
index 00000000..24039d17
--- /dev/null
+++ b/drivers/gaudio/pwm/gaudio_play_board_template.h
@@ -0,0 +1,38 @@
+/*
+ * 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
+
+/*
+ * This routine is defined in the driver - the timer interrupt should call this routine.
+ *
+ * static void gaudio_play_pwm_timer_callbackI(void);
+ *
+ */
+
+static bool gaudio_play_pwm_setup(uint32_t frequency, ArrayDataFormat format) {
+	/* Initialise the PWM - use a midpoint value for the initial PWM value */
+	/* Initialise the timer interrupt @ frequency */
+	/* Return FALSE if any parameter invalid */
+}
+
+static void gaudio_play_pwm_start(void) {
+	/* Start the PWM  */
+	/* Start the timer interrupt */
+}
+
+static void gaudio_play_pwm_stop(void) {
+	/* Stop the timer interrupt */
+	/* Stop the PWM */
+}
+
+static void gaudio_play_pwm_setI(uint16_t value) {
+	/* Set the PWM value */
+}
+
+#endif	/* GAUDIO_PLAY_BOARD_H */