2 * Copyright © 2010 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * jim liu <jim.liu@intel.com>
25 * Jackie Li<yaodong.li@intel.com>
28 #ifndef __MDFLD_DSI_DBI_H__
29 #define __MDFLD_DSI_DBI_H__
31 #include <linux/backlight.h>
34 #include <drm/drm_crtc.h>
35 #include <drm/drm_edid.h>
38 #include "psb_intel_drv.h"
39 #include "psb_intel_reg.h"
42 #include "mdfld_dsi_output.h"
43 #include "mdfld_output.h"
45 #define DRM_MODE_ENCODER_MIPI 5
49 * DBI encoder which inherits from mdfld_dsi_encoder
51 struct mdfld_dsi_dbi_output {
52 struct mdfld_dsi_encoder base;
53 struct drm_display_mode *panel_fixed_mode;
57 struct drm_device *dev;
59 /* Backlight operations */
63 bool dsr_fb_update_done;
65 /* Mode setting flags */
71 struct panel_funcs *p_funcs;
80 #define MDFLD_DSI_DBI_OUTPUT(dsi_encoder) \
81 container_of(dsi_encoder, struct mdfld_dsi_dbi_output, base)
83 struct mdfld_dbi_dsr_info {
85 struct mdfld_dsi_dbi_output *dbi_outputs[2];
90 #define DBI_CB_TIMEOUT_COUNT 0xffff
93 #define CMD_MEM_ADDR_OFFSET 0
95 #define CMD_DATA_SRC_SYSTEM_MEM 0
96 #define CMD_DATA_SRC_PIPE 1
98 static inline int mdfld_dsi_dbi_fifo_ready(struct mdfld_dsi_dbi_output *dbi_output)
100 struct drm_device *dev = dbi_output->dev;
101 u32 retry = DBI_CB_TIMEOUT_COUNT;
102 int reg_offset = (dbi_output->channel_num == 1) ? MIPIC_REG_OFFSET : 0;
105 /* Query the dbi fifo status*/
107 if (REG_READ(MIPIA_GEN_FIFO_STAT_REG + reg_offset) & (1 << 27))
112 DRM_ERROR("Timeout waiting for DBI FIFO empty\n");
118 static inline int mdfld_dsi_dbi_cmd_sent(struct mdfld_dsi_dbi_output *dbi_output)
120 struct drm_device *dev = dbi_output->dev;
121 u32 retry = DBI_CB_TIMEOUT_COUNT;
122 int reg_offset = (dbi_output->channel_num == 1) ? MIPIC_REG_OFFSET : 0;
125 /* Query the command execution status */
127 if (!(REG_READ(MIPIA_CMD_ADD_REG + reg_offset) & (1 << 0)))
131 DRM_ERROR("Timeout waiting for DBI command status\n");
138 static inline int mdfld_dsi_dbi_cb_ready(struct mdfld_dsi_dbi_output *dbi_output)
142 /* Query the command execution status*/
143 ret = mdfld_dsi_dbi_cmd_sent(dbi_output);
145 DRM_ERROR("Peripheral is busy\n");
148 /* Query the dbi fifo status*/
149 ret = mdfld_dsi_dbi_fifo_ready(dbi_output);
151 DRM_ERROR("DBI FIFO is not empty\n");
157 extern void mdfld_dsi_dbi_output_init(struct drm_device *dev,
158 struct psb_intel_mode_device *mode_dev, int pipe);
159 extern void mdfld_dsi_dbi_exit_dsr(struct drm_device *dev, u32 update_src);
160 extern void mdfld_dsi_dbi_enter_dsr(struct mdfld_dsi_dbi_output *dbi_output,
162 extern int mdfld_dbi_dsr_init(struct drm_device *dev);
163 extern void mdfld_dbi_dsr_exit(struct drm_device *dev);
164 extern struct mdfld_dsi_encoder *mdfld_dsi_dbi_init(struct drm_device *dev,
165 struct mdfld_dsi_connector *dsi_connector,
166 struct panel_funcs *p_funcs);
167 extern int mdfld_dsi_dbi_send_dcs(struct mdfld_dsi_dbi_output *dbi_output,
168 u8 dcs, u8 *param, u32 num, u8 data_src);
169 extern int mdfld_dsi_dbi_update_area(struct mdfld_dsi_dbi_output *dbi_output,
170 u16 x1, u16 y1, u16 x2, u16 y2);
171 extern int mdfld_dsi_dbi_update_power(struct mdfld_dsi_dbi_output *dbi_output,
173 extern void mdfld_dsi_controller_dbi_init(struct mdfld_dsi_config *dsi_config,
176 #endif /*__MDFLD_DSI_DBI_H__*/