Staging: add MSM framebuffer driver

Qualcomm development of the MSM SOC framebuffer driver has
diverged significantly from the driver used by Android. This
is a snapshot of our current driver, in all it's agony. We are
putting this in staging to help with the process of converging
the two drivers.

At this point, the driver has been tested only in dumb
framebuffer mode.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
[dwalker@codeaurora.org: added a small compile fix and TODO.]
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 174 insertions, 0 deletions

diff --git a/drivers/staging/msm/msm_fb.h b/drivers/staging/msm/msm_fb.h
new file mode 100644
index 00000000000..f9391380047
--- /dev/null
+++ b/drivers/staging/msm/msm_fb.h
@@ -0,0 +1,174 @@
+/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Code Aurora nor
+ *       the names of its contributors may be used to endorse or promote
+ *       products derived from this software without specific prior written
+ *       permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef MSM_FB_H
+#define MSM_FB_H
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/time.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include "linux/proc_fs.h"
+
+#include <mach/hardware.h>
+#include <linux/io.h>
+#include <mach/board.h>
+
+#include <asm/system.h>
+#include <asm/mach-types.h>
+#include <mach/memory.h>
+#include <linux/semaphore.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/hrtimer.h>
+
+#include <linux/fb.h>
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+
+#include "msm_fb_panel.h"
+#include "mdp.h"
+
+#define MSM_FB_DEFAULT_PAGE_SIZE 2
+#define MFD_KEY  0x11161126
+#define MSM_FB_MAX_DEV_LIST 32
+
+struct disp_info_type_suspend {
+	boolean op_enable;
+	boolean sw_refreshing_enable;
+	boolean panel_power_on;
+};
+
+struct msm_fb_data_type {
+	__u32 key;
+	__u32 index;
+	__u32 ref_cnt;
+	__u32 fb_page;
+
+	panel_id_type panel;
+	struct msm_panel_info panel_info;
+
+	DISP_TARGET dest;
+	struct fb_info *fbi;
+
+	boolean op_enable;
+	uint32 fb_imgType;
+	boolean sw_currently_refreshing;
+	boolean sw_refreshing_enable;
+	boolean hw_refresh;
+
+	MDPIBUF ibuf;
+	boolean ibuf_flushed;
+	struct timer_list refresh_timer;
+	struct completion refresher_comp;
+
+	boolean pan_waiting;
+	struct completion pan_comp;
+
+	/* vsync */
+	boolean use_mdp_vsync;
+	__u32 vsync_gpio;
+	__u32 total_lcd_lines;
+	__u32 total_porch_lines;
+	__u32 lcd_ref_usec_time;
+	__u32 refresh_timer_duration;
+
+	struct hrtimer dma_hrtimer;
+
+	boolean panel_power_on;
+	struct work_struct dma_update_worker;
+	struct semaphore sem;
+
+	struct timer_list vsync_resync_timer;
+	boolean vsync_handler_pending;
+	struct work_struct vsync_resync_worker;
+
+	ktime_t last_vsync_timetick;
+
+	__u32 *vsync_width_boundary;
+
+	unsigned int pmem_id;
+	struct disp_info_type_suspend suspend;
+
+	__u32 channel_irq;
+
+	struct mdp_dma_data *dma;
+	void (*dma_fnc) (struct msm_fb_data_type *mfd);
+	int (*cursor_update) (struct fb_info *info,
+			      struct fb_cursor *cursor);
+	int (*lut_update) (struct fb_info *info,
+			      struct fb_cmap *cmap);
+	int (*do_histogram) (struct fb_info *info,
+			      struct mdp_histogram *hist);
+	void *cursor_buf;
+	void *cursor_buf_phys;
+
+	void *cmd_port;
+	void *data_port;
+	void *data_port_phys;
+
+	__u32 bl_level;
+
+	struct platform_device *pdev;
+
+	__u32 var_xres;
+	__u32 var_yres;
+	__u32 var_pixclock;
+
+#ifdef MSM_FB_ENABLE_DBGFS
+	struct dentry *sub_dir;
+#endif
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+	struct early_suspend early_suspend;
+	struct early_suspend mddi_early_suspend;
+	struct early_suspend mddi_ext_early_suspend;
+#endif
+	u32 mdp_fb_page_protection;
+	int allow_set_offset;
+};
+
+struct dentry *msm_fb_get_debugfs_root(void);
+void msm_fb_debugfs_file_create(struct dentry *root, const char *name,
+				u32 *var);
+void msm_fb_set_backlight(struct msm_fb_data_type *mfd, __u32 bkl_lvl,
+				u32 save);
+
+void msm_fb_add_device(struct platform_device *pdev);
+
+int msm_fb_detect_client(const char *name);
+
+#ifdef CONFIG_FB_BACKLIGHT
+void msm_fb_config_backlight(struct msm_fb_data_type *mfd);
+#endif
+
+#endif /* MSM_FB_H */