IPC driver for Intel Mobile Internet Device (MID) platforms

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+#ifndef _ASM_X86_INTEL_SCU_IPC_H_
+#define  _ASM_X86_INTEL_SCU_IPC_H_
+
+struct scu_fw_version {
+	u8 rtMinorVer;		/* SCU RT Firmware Minor Revision */
+	u8 rtMajorVer;		/* SCU RT Firmware Major Revision */
+	u8 romMinorVer;		/* SCU ROM Firmware Minor Revision */
+	u8 romMajorVer;		/* SCU ROM Firmware Major Revision */
+	u8 punitMinorVer;	/* P-unit Microcode Minor Revision */
+	u8 punitMajorVer;	/* P-unit Microcode Major Revision */
+	u8 iaMinorVer;		/* IA-32 Firmware Minor Revision */
+	u8 iaMajorVer;		/* IA-32 Firmware Major Revision */
+	u8 ftlMinorVer;		/* FTL Driver Minor Revision */
+	u8 ftlMajorVer;		/* FTL Driver Major Revision */
+	u8 valMinorVer;		/* Validation Hooks Minor Revision */
+	u8 valMajorVer;		/* Validation Hooks Major Revision */
+	u8 ifwiMinorVer;	/* IFWI Minor Revision */
+	u8 ifwiMajorVer;	/* IFWI Major Revision */
+} ;
+
+struct battery_property {
+	u32 capacity;	/* Charger capacity */
+	u8  crnt;	/* Quick charge current value*/
+	u8  volt;	/* Fine adjustment of constant charge voltage */
+	u8  prot;	/* CHRGPROT register value */
+	u8  prot2;	/* CHRGPROT1 register value */
+	u8 timer;	/* Charging timer */
+} __attribute__((packed));
+
+/* Read single register */
+int intel_scu_ipc_ioread8(u16 addr, u8 *data);
+
+/* Read two registers */
+int intel_scu_ipc_ioread16(u16 addr, u16 *data);
+
+/* Read four registers */
+int intel_scu_ipc_ioread32(u16 addr, u32 *data);
+
+/* Read a vector */
+int intel_scu_ipc_readv(u16 *addr, u8 *data, int len);
+
+/* Write single register */
+int intel_scu_ipc_iowrite8(u16 addr, u8 data);
+
+/* Write two registers */
+int intel_scu_ipc_iowrite16(u16 addr, u16 data);
+
+/* Write four registers */
+int intel_scu_ipc_iowrite32(u16 addr, u32 data);
+
+/* Write a vector */
+int intel_scu_ipc_writev(u16 *addr, u8 *data, int len);
+
+/*
+ * Update single register based on the mask
+ * First element of data is register value and second element is mask value
+ */
+int intel_scu_ipc_update_register(u16 addr, u8 data[2]);
+
+/*
+ * Indirect register read
+ * Can be used when SCCB(System Controller Configuration Block) register
+ * HRIM(Honor Restricted IPC Messages) is set (bit 23)
+ */
+int intel_scu_ipc_register_read(u32 addr, u32 *data);
+
+/*
+ * Indirect register write
+ * Can be used when SCCB(System Controller Configuration Block) register
+ * HRIM(Honor Restricted IPC Messages) is set (bit 23)
+ */
+int intel_scu_ipc_register_write(u32 addr, u32 data);
+
+int intel_scu_ipc_simple_command(int cmd, int sub);
+
+/* Read the coulomb counter accumulator to monitor the battery charge level */
+int intel_scu_ipc_battery_cc_read(u32 *value);
+
+/* Write the coulomb counter accumulator */
+int intel_scu_ipc_battery_cc_write(u32 value);
+
+/* Read battery properties */
+int intel_scu_ipc_battery_property(struct battery_property *prop);
+
+/*
+ * Used to enable Timer Services for Kernel Watchdog Operation permitting
+ * automatic reset or reboot of the system if tripped.
+ * Set watchdog timer value, returns 0 on success, 1 on error
+ */
+int intel_scu_ipc_set_watchdog(u32 warn_threshold, u32 reset_threshold);
+
+/* I2C control api */
+int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data);
+
+/* Read FW version */
+int intel_scu_ipc_fw_version(struct scu_fw_version *version);
+
+/* Update FW version */
+int intel_scu_ipc_fw_update(u8 *buffer, u32 length);
+
+#endif

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