4 * Copyright (C) 2010 Texas Instruments.
6 * This file is licensed under the terms of the GNU General Public License
7 * version 2. This program is licensed "as is" without any warranty of any
8 * kind, whether express or implied.
11 #ifndef OMAP_VOUTDEF_H
12 #define OMAP_VOUTDEF_H
14 #include <media/v4l2-ctrls.h>
15 #include <video/omapfb_dss.h>
16 #include <video/omapvrfb.h>
23 #define YUYV_VRFB_BPP 2
24 #define RGB_VRFB_BPP 1
26 #define MAC_VRFB_CTXS 4
27 #define MAX_VOUT_DEV 2
29 #define MAX_DISPLAYS 10
30 #define MAX_MANAGERS 3
32 #define QQVGA_WIDTH 160
33 #define QQVGA_HEIGHT 120
35 /* Max Resolution supported by the driver */
36 #define VID_MAX_WIDTH 1280 /* Largest width */
37 #define VID_MAX_HEIGHT 720 /* Largest height */
39 /* Mimimum requirement is 2x2 for DSS */
40 #define VID_MIN_WIDTH 2
41 #define VID_MIN_HEIGHT 2
43 /* 2048 x 2048 is max res supported by OMAP display controller */
44 #define MAX_PIXELS_PER_LINE 2048
46 #define VRFB_TX_TIMEOUT 1000
47 #define VRFB_NUM_BUFS 4
49 /* Max buffer size tobe allocated during init */
50 #define OMAP_VOUT_MAX_BUF_SIZE (VID_MAX_WIDTH*VID_MAX_HEIGHT*4)
52 enum dma_channel_state {
58 * DSS understands rotation in 0, 1, 2, 3 context
59 * while V4L2 driver understands it as 0, 90, 180, 270
62 dss_rotation_0_degree = 0,
63 dss_rotation_90_degree = 1,
64 dss_rotation_180_degree = 2,
65 dss_rotation_270_degree = 3,
68 /* Enum for choosing rotation type for vout
69 * DSS2 doesn't understand no rotation as an
70 * option while V4L2 driver doesn't support
71 * rotation in the case where VRFB is not built in
74 enum vout_rotaion_type {
80 * This structure is used to store the DMA transfer parameters
81 * for VRFB hidden buffer
88 wait_queue_head_t wait;
91 struct omapvideo_info {
94 struct omap_overlay *overlays[MAX_OVLS];
95 enum vout_rotaion_type rotation_type;
98 struct omap2video_device {
103 struct v4l2_device v4l2_dev;
104 struct omap_vout_device *vouts[MAX_VOUT_DEV];
107 struct omap_dss_device *displays[MAX_DISPLAYS];
109 struct omap_overlay *overlays[MAX_OVLS];
111 struct omap_overlay_manager *managers[MAX_MANAGERS];
114 /* per-device data structure */
115 struct omap_vout_device {
117 struct omapvideo_info vid_info;
118 struct video_device *vfd;
119 struct omap2video_device *vid_dev;
120 struct v4l2_ctrl_handler ctrl_handler;
124 /* we don't allow to change image fmt/size once buffer has
127 int buffer_allocated;
128 /* allow to reuse previously allocated buffer which is big enough */
130 /* keep buffer info across opens */
131 unsigned long buf_virt_addr[VIDEO_MAX_FRAME];
132 unsigned long buf_phy_addr[VIDEO_MAX_FRAME];
133 enum omap_color_mode dss_mode;
135 /* we don't allow to request new buffer when old buffers are
140 spinlock_t vbq_lock; /* spinlock for videobuf queues */
141 unsigned long field_count; /* field counter for videobuf_buffer */
143 /* non-NULL means streaming is in progress. */
146 struct v4l2_pix_format pix;
147 struct v4l2_rect crop;
148 struct v4l2_window win;
149 struct v4l2_framebuffer fbuf;
151 /* Lock to protect the shared data structures in ioctl */
154 enum dss_rotation rotation;
158 int bpp; /* bytes per pixel */
159 int vrfb_bpp; /* bytes per pixel with respect to VRFB */
161 struct vid_vrfb_dma vrfb_dma_tx;
162 unsigned int smsshado_phy_addr[MAC_VRFB_CTXS];
163 unsigned int smsshado_virt_addr[MAC_VRFB_CTXS];
164 struct vrfb vrfb_context[MAC_VRFB_CTXS];
165 bool vrfb_static_allocation;
166 unsigned int smsshado_size;
169 int ps, vr_ps, line_length, first_int, field_id;
170 enum v4l2_memory memory;
171 struct videobuf_buffer *cur_frm, *next_frm;
172 struct list_head dma_queue;
173 u8 *queued_buf_addr[VIDEO_MAX_FRAME];
175 s32 tv_field1_offset;
178 /* Buffer queue variables */
179 struct omap_vout_device *vout;
180 enum v4l2_buf_type type;
181 struct videobuf_queue vbq;
187 * Return true if rotation is 90 or 270
189 static inline int is_rotation_90_or_270(const struct omap_vout_device *vout)
191 return (vout->rotation == dss_rotation_90_degree ||
192 vout->rotation == dss_rotation_270_degree);
196 * Return true if rotation is enabled
198 static inline int is_rotation_enabled(const struct omap_vout_device *vout)
200 return vout->rotation || vout->mirror;
204 * Reverse the rotation degree if mirroring is enabled
206 static inline int calc_rotation(const struct omap_vout_device *vout)
209 return vout->rotation;
211 switch (vout->rotation) {
212 case dss_rotation_90_degree:
213 return dss_rotation_270_degree;
214 case dss_rotation_270_degree:
215 return dss_rotation_90_degree;
216 case dss_rotation_180_degree:
217 return dss_rotation_0_degree;
219 return dss_rotation_180_degree;
223 void omap_vout_free_buffers(struct omap_vout_device *vout);
224 #endif /* ifndef OMAP_VOUTDEF_H */