ux500: STE camera IO driver code in staging

Updates board_mop500.c  so that mmio driver can obtain gpio
config from platform
Adds sensor clock configuration to board specific file.
Adds support for impplementing different power cycling schemes for
primary and secondary camera sensors.

Signed-off-by: rajat verma <rajat.verma@stericsson.com>

1 files changed, 175 insertions, 0 deletions

diff --git a/include/linux/mmio.h b/include/linux/mmio.h
new file mode 100644
index 00000000000..9dee32055ef
--- /dev/null
+++ b/include/linux/mmio.h
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: Joakim Axelsson <joakim.axelsson@stericsson.com> for ST-Ericsson
+ * Author: Rajat Verma <rajat.verma@stericsson.com> for ST-Ericsson
+ * License Terms: GNU General Public License v2
+ */
+
+#ifndef MMIO_H
+#define MMIO_H
+
+#include <linux/ioctl.h>
+
+#define MMIO_NAME "mmio_camera"
+
+#ifdef SRA_SUPPORT
+#define SREG_16_BIT (0x1)
+#define SREG_32_BIT (0x2)
+#endif
+/* Kernel side interface for MMIO */
+/* Which camera is currently active */
+enum camera_slot_t {
+	PRIMARY_CAMERA = 0,
+	SECONDARY_CAMERA,
+	CAMERA_SLOT_END
+};
+struct mmio_gpio {
+	int gpio;	/* Set to zero if not in use */
+	int active_high;/* Set if pin is active high */
+	int udelay;	/* Time to wait when activating the pin, in usec */
+};
+enum mmio_select_i2c_t {
+	MMIO_ACTIVATE_IPI2C2 = 0,
+	MMIO_ACTIVATE_I2C_HOST,
+	MMIO_DEACTIVATE_I2C
+};
+
+enum mmio_select_xshutdown_t {
+	MMIO_ENABLE_XSHUTDOWN_FW = 0,
+	MMIO_ENABLE_XSHUTDOWN_HOST,
+	MMIO_DISABLE_XSHUTDOWN
+};
+struct mmio_platform_data {
+	struct device *dev;
+	enum camera_slot_t camera_slot; /* Which camera is currently used,
+					 * Primary/Secondary */
+	void *extra;			/* Board's private data structure
+					 * placeholder */
+	int reset_ipgpio[CAMERA_SLOT_END]; /* Contains logical IP GPIO for
+					    * reset pin */
+	int sia_base;
+	int cr_base;
+	int (*platform_init)(struct mmio_platform_data *pdata);
+	void (*platform_exit)(struct mmio_platform_data *pdata);
+	int (*power_enable)(struct mmio_platform_data *pdata);
+	void (*power_disable)(struct mmio_platform_data *pdata);
+	int (*config_xshutdown_pins)(struct mmio_platform_data *pdata,
+		enum mmio_select_xshutdown_t select, int is_active_high);
+	int (*config_i2c_pins)(struct mmio_platform_data *pdata,
+		enum mmio_select_i2c_t select);
+	int (*clock_enable)(struct mmio_platform_data *pdata);
+	void (*clock_disable)(struct mmio_platform_data *pdata);
+	void (*set_xshutdown)(struct mmio_platform_data *pdata);
+};
+
+#define USER_SIDE_INTERFACE 1
+/* User side is only allowed to access code in USER_SIDE_INTERFACE block */
+#ifdef USER_SIDE_INTERFACE
+enum mmio_bool_t {
+	MMIO_FALSE = 0,
+	MMIO_TRUE = !MMIO_FALSE,
+	MMIO_BOOL_MAX = 0x7FFFFFFF
+};
+
+struct xshutdown_info_t {
+	int ip_gpio;
+	int camera_function;
+};
+
+struct xp70_fw_t {
+	void __iomem *addr_sdram_ext;
+	void __iomem *addr_esram_ext;
+	void __iomem *addr_split;
+	void __iomem *addr_data;
+	unsigned int size_sdram_ext;
+	unsigned int size_esram_ext;
+	unsigned int size_split;
+	unsigned int size_data;
+};
+
+struct isp_write_t {
+	unsigned long t1_dest;
+	unsigned long *data;
+	unsigned long count;
+};
+
+struct trace_buf_t {
+	void *address;
+	unsigned int size;
+};
+
+#ifdef SRA_SUPPORT
+struct s_reg {
+	unsigned int addr;
+	unsigned int value;
+	unsigned int mask;
+};
+
+struct s_reg_list {
+	unsigned int access_mode;
+	unsigned int entries;
+	struct s_reg  *s_regs_p;
+};
+#endif
+struct mmio_input_output_t {
+	union {
+		enum mmio_bool_t	power_on;
+		struct xp70_fw_t	xp70_fw;
+		struct isp_write_t	isp_write;
+		unsigned int		addr_to_map;
+		struct xshutdown_info_t	xshutdown_info;
+		enum camera_slot_t	camera_slot;
+		struct trace_buf_t	trace_buf;
+#ifdef SRA_SUPPORT
+		struct s_reg_list s_reg_list;
+#endif
+	} mmio_arg;
+};
+
+#define MMIO_TRUE	(1)
+#define MMIO_FALSE	(0)
+#define MMIO_INVALID	(~0)
+
+/*Xshutdown from host takes two arguments*/
+#define MMIO_XSHUTDOWN_ENABLE			(0x1)
+#define MMIO_XSHUTDOWN_ACTIVE_HIGH		(0x2)
+
+#define MMIO_MAGIC_NUMBER 0x15
+
+#define MMIO_CAM_INITBOARD	_IOW(MMIO_MAGIC_NUMBER, 1,\
+struct mmio_input_output_t*)
+#define MMIO_CAM_PWR_SENSOR	_IOW(MMIO_MAGIC_NUMBER, 2,\
+struct mmio_input_output_t*)
+#define MMIO_CAM_SET_EXT_CLK	_IOW(MMIO_MAGIC_NUMBER, 3,\
+struct mmio_input_output_t*)
+#define MMIO_CAM_SET_PRI_HWIF	_IO(MMIO_MAGIC_NUMBER, 4)
+#define MMIO_CAM_SET_SEC_HWIF	_IO(MMIO_MAGIC_NUMBER, 5)
+#define MMIO_CAM_INITMMDSPTIMER	_IO(MMIO_MAGIC_NUMBER, 6)
+#define MMIO_CAM_LOAD_XP70_FW	_IOW(MMIO_MAGIC_NUMBER, 7,\
+struct mmio_input_output_t*)
+#define MMIO_CAM_MAP_STATS_AREA	_IOWR(MMIO_MAGIC_NUMBER, 8,\
+struct mmio_input_output_t*)
+#define MMIO_ACTIVATE_I2C2	_IOW(MMIO_MAGIC_NUMBER, 9, int*)
+#define MMIO_ENABLE_XSHUTDOWN_FROM_HOST _IOW(MMIO_MAGIC_NUMBER, 10, int*)
+#define MMIO_CAM_ISP_WRITE	_IOW(MMIO_MAGIC_NUMBER, 11,\
+struct mmio_input_output_t*)
+#define MMIO_CAM_GET_IP_GPIO	_IOWR(MMIO_MAGIC_NUMBER, 12,\
+struct mmio_input_output_t*)
+#define MMIO_CAM_DESINITBOARD	_IO(MMIO_MAGIC_NUMBER, 13)
+#define MMIO_CAM_SET_TRACE_BUFFER _IOW(MMIO_MAGIC_NUMBER, 14,\
+struct mmio_input_output_t*)
+
+#ifdef SRA_SUPPORT
+#define MMIO_CAM_READ_REGS	_IOWR(MMIO_MAGIC_NUMBER, 15,\
+struct mmio_input_output_t*)
+#define MMIO_CAM_MODIFY_REGS	_IOWR(MMIO_MAGIC_NUMBER, 16,\
+struct mmio_input_output_t*)
+#define MMIO_CAM_WRITE_REGS	_IOWR(MMIO_MAGIC_NUMBER, 17,\
+struct mmio_input_output_t*)
+#endif
+
+#endif /* USER_SIDE_INTERFACE */
+
+#endif
+/* MMIO_H */