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, 86 insertions, 0 deletions

diff --git a/drivers/staging/msm/mdp_ppp_dq.h b/drivers/staging/msm/mdp_ppp_dq.h
new file mode 100644
index 0000000..03e4e9a
--- /dev/null
+++ b/drivers/staging/msm/mdp_ppp_dq.h
@@ -0,0 +1,86 @@
+/* Copyright (c) 2009-2010, 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 Forum, Inc. 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 "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 MDP_PPP_DQ_H
+#define MDP_PPP_DQ_H
+
+#include "msm_fb_def.h"
+
+#define MDP_PPP_DEBUG_MSG MSM_FB_DEBUG
+
+/* The maximum number of <Reg,Val> pairs in an mdp_ppp_roi_cmd_set structure (a
+ * node)
+ */
+#define MDP_PPP_ROI_NODE_SIZE 32
+
+/* ROI config command (<Reg,Val> pair) for MDP PPP block */
+struct mdp_ppp_roi_cmd {
+	uint32_t reg;
+	uint32_t val;
+};
+
+/* ROI config commands for MDP PPP block are stored in a list of
+ * mdp_ppp_roi_cmd_set structures (nodes).
+ */
+struct mdp_ppp_roi_cmd_set {
+	struct list_head node;
+	uint32_t ncmds; /* number of commands in this set (node). */
+	struct mdp_ppp_roi_cmd cmd[MDP_PPP_ROI_NODE_SIZE];
+};
+
+/* MDP PPP Display Job (DJob) */
+struct mdp_ppp_djob {
+	struct list_head entry;
+	/* One ROI per MDP PPP DJob */
+	struct list_head roi_cmd_list;
+	struct mdp_blit_req req;
+	struct fb_info *info;
+	struct delayed_work cleaner;
+	struct file *p_src_file, *p_dst_file;
+};
+
+extern struct completion mdp_ppp_comp;
+extern boolean mdp_ppp_waiting;
+extern unsigned long mdp_timer_duration;
+
+unsigned int mdp_ppp_async_op_get(void);
+void mdp_ppp_async_op_set(unsigned int flag);
+void msm_fb_ensure_mem_coherency_after_dma(struct fb_info *info,
+	struct mdp_blit_req *req_list, int req_list_count);
+void mdp_ppp_put_img(struct file *p_src_file, struct file *p_dst_file);
+void mdp_ppp_dq_init(void);
+void mdp_ppp_outdw(uint32_t addr, uint32_t data);
+struct mdp_ppp_djob *mdp_ppp_new_djob(void);
+void mdp_ppp_clear_curr_djob(void);
+void mdp_ppp_process_curr_djob(void);
+int mdp_ppp_get_ret_code(void);
+void mdp_ppp_djob_done(void);
+void mdp_ppp_wait(void);
+
+#endif /* MDP_PPP_DQ_H */