#include <ao_draw.h>
+/*
+ * Wiring the NewHaven NHD-C12864LZ-FSW-FBW-3V3 display
+ *
+ * PIN Symbol Connection
+ * 1 /CS1 Chip select. Active low.
+ * 2 /RES Reset. Active low.
+ * 3 A0 Register select. 0: instruction, 1: data
+ * 4 /WR NC
+ * 5 /RD NC
+ * 6 DB0 NC
+ * 7 DB1 NC
+ * 8 DB2 NC
+ * 8 DB3 NC
+ * 10 DB4 NC
+ * 11 DB5 NC
+ * 12 DB6 SPI clock. Mode 3 (idle high, rising edge)
+ * 13 DB7 SPI data.
+ * 14 Vdd +3.3V
+ * 15 Vss Ground
+ * 16 Vout 1uF to ground
+ * 17 CAP3+ 1uF to CAP1-
+ * 18 CAP1- 1uF to CAP3+ and CAP1+
+ * 19 CAP1+ 1uF to CAP1-
+ * 20 CAP2+ 1uF to CAP2-
+ * 21 CAP2- 1uF to CAP2+
+ * 22 V4 1uF to ground
+ * 23 V3 1uF to ground
+ * 24 V2 1uF to ground
+ * 25 V1 1uF to ground
+ * 26 V0 1uF to ground
+ * 27 C86 MPU select. Ground
+ * 28 PS Parallel/serial select. Ground
+ */
+
#define ST7565_DISPLAY_OFF 0xae
#define ST7565_DISPLAY_ON 0xaf
#define ST7565_DISPLAY_START_LINE_SET(line) (0x40 | (line))
#define ST7565_BOOSTER_RATIO_SET 0xf8
#define ST7565_NOP 0xe3
-#define AO_ST7565_SPI_SPEED ao_spi_speed(20000000)
+/* Max 50ns SPI clock time */
+#define AO_ST7565_SPI_SPEED ao_spi_speed(AO_ST7565_SPI_BUS, 20000000)
void
ao_st7565_update(struct ao_bitmap *bitmap);
+void
+ao_st7565_set_brightness(uint8_t val);
+
+uint8_t
+ao_st7565_get_brightness(void);
+
void
ao_st7565_init(void);