1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/synaptics_dsx_control_access_block.h b/drivers/input/touchscreen/synaptics_dsx_control_access_block.h
new file mode 100644
index 00000000..a5cc8caf
--- /dev/null
+++ b/drivers/input/touchscreen/synaptics_dsx_control_access_block.h
@@ -0,0 +1,111 @@
+/*
+ * Synaptics DSX touchscreen driver extension
+ *
+ * Copyright (C) 2015 Motorola Mobility, Inc.
+ *
+ * Copyright (C) 2015 Konstantin Makariev <kmakariev@motorola.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef _SYNAPTICS_DSX_CONTROL_ACCESS_BLOCK_H_
+#define _SYNAPTICS_DSX_CONTROL_ACCESS_BLOCK_H_
+
+#define MODE_WO	(1 << 7)
+#define	GROUP_MAX 7
+
+enum access_groups {
+	SYN_DSX_STATUS = 1,	/* RO:mandatory, read status to clear IRQ */
+	SYN_DSX_MODE,	/* RO:mandatory, read touch IC mode */
+	SYN_DSX_DATA,	/* RO:mandatory, read touch data */
+	SYN_DSX_WAKE = SYN_DSX_DATA + 1 + MODE_WO,
+			/* WO:mandatory, command(s) to wake up touch IC */
+	SYN_DSX_SLEEP,	/* WO:mandatory, command(s) to put touch IC to sleep */
+	SYN_DSX_RESET,	/* WO:optional,  command to reset touch IC */
+	SYN_DSX_CONFIG,	/* WO:optional,  command(s) to apply custom config */
+	SYN_DSX_VAL_MAX = 0xff
+};
+
+struct op_read {
+	struct {
+		unsigned short paddr;	/* (page << 8) + address */
+		unsigned char  blk_sz;	/* read block size */
+		unsigned char  blk_cnt;	/* read block count */
+	};
+};
+
+struct op_write {
+	struct {
+		unsigned short paddr;	/* (page << 8) + address */
+		unsigned char  blk_sz;	/* write block size */
+		unsigned char  blk_cnt;	/* write block count */
+	};
+	unsigned char mask;	/* mask to clear bit(s) before apply data */
+				/* only effective when blk_cnt and blk_sz */
+				/* both are 1s, otherwise mask is ignored */
+	unsigned char data[0];	/* blk_cnt of data chunks of blk_sz each */
+};
+
+struct grp_info {
+	unsigned char group;		/* access group; defines type of data */
+	unsigned char data_blk_cnt;	/* number of data blocks in the group */
+	union {
+		struct op_read **ro_data;
+		struct op_write **wo_data;
+	};
+};
+
+struct touch_control_access_block {
+	unsigned char do_sync;	/* flag to indicate data block was updated */
+	unsigned char grp_num;	/* number of groups in data block */
+	struct grp_info *grp_ptr[GROUP_MAX];
+};
+
+#if defined(CONFIG_TOUCHSCREEN_SYNAPTICS_DSX_CTRL_ACCESS_BLK)
+struct touch_control_access_block *control_access_block_get(void);
+int control_access_block_update_ro(unsigned char gid, unsigned short paddr,
+	unsigned char sz, unsigned char cnt);
+int control_access_block_update_wo(unsigned char gid, unsigned short paddr,
+	unsigned char sz, unsigned char mask, unsigned char *data);
+void control_access_block_zap(unsigned char gid);
+#else
+static inline struct touch_control_access_block *control_access_block_get(void) {
+	return NULL;
+}
+static int inline control_access_block_update_ro(
+	unsigned char gid, unsigned short paddr,
+	unsigned char sz, unsigned char cnt) {
+	return -1;
+}
+static int inline control_access_block_update_wo(
+	unsigned char gid, unsigned short paddr,
+	unsigned char sz, unsigned char mask, unsigned char *data) {
+	return -1;
+}
+static void inline control_access_block_zap(unsigned char gid) {
+}
+#endif
+
+#define control_access_block_update_status(paddr, size) \
+	control_access_block_update_ro(SYN_DSX_STATUS, paddr, size, 1)
+#define control_access_block_update_mode(paddr, size) \
+	control_access_block_update_ro(SYN_DSX_MODE, paddr, size, 1)
+#define control_access_block_update_data(paddr, size) \
+	control_access_block_update_ro(SYN_DSX_DATA, paddr, size, 1)
+#define control_access_block_update_data_mt(paddr, size, mt) \
+	control_access_block_update_ro(SYN_DSX_DATA, paddr, size, mt)
+#define control_access_block_update_reset(paddr, size, data) \
+	control_access_block_update_wo(SYN_DSX_RESET, paddr, size, 0, data)
+#define control_access_block_update_wake(paddr, size, data) \
+	control_access_block_update_wo(SYN_DSX_WAKE, paddr, size, 0x7, data)
+#define control_access_block_update_sleep(paddr, size, data) \
+	control_access_block_update_wo(SYN_DSX_SLEEP, paddr, size, 0x7, data)
+
+#endif