1 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/include/mach/fiq_ipc_gta02.h b/arch/arm/mach-s3c2410/include/mach/fiq_ipc_gta02.h
new file mode 100644
index 00000000000..8f7744eab63
--- /dev/null
+++ b/arch/arm/mach-s3c2410/include/mach/fiq_ipc_gta02.h
@@ -0,0 +1,60 @@
+#ifndef _LINUX_FIQ_IPC_H
+#define _LINUX_FIQ_IPC_H
+
+/*
+ * this defines the struct which is used to communicate between the FIQ
+ * world and the normal linux kernel world.  One of these structs is
+ * statically defined for you in the monolithic kernel so the FIQ ISR code
+ * can safely touch it any any time.
+ *
+ * You also want to include this file in your kernel module that wants to
+ * communicate with your FIQ code.  Add any kinds of vars that are used by
+ * the FIQ ISR and the module in here.
+ *
+ * To get you started there is just an int that is incremented every FIQ
+ * you can remove this when you are ready to customize, but it is useful
+ * for testing
+ */
+
+#include <mach/pwm.h>
+#include <asm/plat-s3c/regs-timer.h>
+
+extern u8 fiq_ready;
+
+enum hdq_bitbang_states {
+	HDQB_IDLE = 0,
+	HDQB_TX_BREAK,
+	HDQB_TX_BREAK_RECOVERY,
+	HDQB_ADS_CALC,
+	HDQB_ADS_LOW,
+	HDQB_ADS_HIGH,
+	HDQB_WAIT_RX,
+	HDQB_DATA_RX_LOW,
+	HDQB_DATA_RX_HIGH,
+	HDQB_WAIT_TX,
+};
+
+struct fiq_ipc {
+	/* vibrator */
+	unsigned long vib_gpio_pin; /* which pin to meddle with */
+	u8 vib_pwm; /* 0 = OFF -- will ensure GPIO deasserted and stop FIQ */
+	u8 vib_pwm_latched;
+
+	/* hdq */
+	u8 hdq_probed; /* nonzero after HDQ driver probed */
+	struct mutex hdq_lock; /* if you want to use hdq, you have to take lock */
+	unsigned long hdq_gpio_pin; /* GTA02 = GPD14 which pin to meddle with */
+	u8 hdq_ads; /* b7..b6 = register address, b0 = r/w */
+	u8 hdq_tx_data; /* data to tx for write action */
+	u8 hdq_rx_data; /* data received in read action */
+	u8 hdq_request_ctr; /* incremented by "user" to request a transfer */
+	u8 hdq_transaction_ctr; /* incremented after each transfer */
+	u8 hdq_error; /* 0 = no error */
+};
+
+/* actual definition lives in arch/arm/mach-s3c2440/fiq_c_isr.c */
+extern struct fiq_ipc fiq_ipc;
+extern unsigned long _fiq_count_fiqs;
+extern void fiq_kick(void);  /* provoke a FIQ "immediately" */
+
+#endif /* _LINUX_FIQ_IPC_H */