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Diffstat (limited to 'include/hw/gpio/pca9552_regs.h')
-rw-r--r--include/hw/gpio/pca9552_regs.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/hw/gpio/pca9552_regs.h b/include/hw/gpio/pca9552_regs.h
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index 0000000000..d8051cfbd6
--- /dev/null
+++ b/include/hw/gpio/pca9552_regs.h
@@ -0,0 +1,32 @@
+/*
+ * PCA9552 I2C LED blinker registers
+ *
+ * Copyright (c) 2017-2018, IBM Corporation.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ */
+#ifndef PCA9552_REGS_H
+#define PCA9552_REGS_H
+
+/*
+ * Bits [0:3] are used to address a specific register.
+ */
+#define PCA9552_INPUT0 0 /* read only input register 0 */
+#define PCA9552_INPUT1 1 /* read only input register 1 */
+#define PCA9552_PSC0 2 /* read/write frequency prescaler 0 */
+#define PCA9552_PWM0 3 /* read/write PWM register 0 */
+#define PCA9552_PSC1 4 /* read/write frequency prescaler 1 */
+#define PCA9552_PWM1 5 /* read/write PWM register 1 */
+#define PCA9552_LS0 6 /* read/write LED0 to LED3 selector */
+#define PCA9552_LS1 7 /* read/write LED4 to LED7 selector */
+#define PCA9552_LS2 8 /* read/write LED8 to LED11 selector */
+#define PCA9552_LS3 9 /* read/write LED12 to LED15 selector */
+
+/*
+ * Bit [4] is used to activate the Auto-Increment option of the
+ * register address
+ */
+#define PCA9552_AUTOINC (1 << 4)
+
+#endif