1 /* 2 * Copyright (C) 2010 Texas Instruments Inc 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation version 2. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 */ 13 #ifndef _VPBE_H 14 #define _VPBE_H 15 16 #include <linux/videodev2.h> 17 #include <linux/i2c.h> 18 19 #include <media/v4l2-dev.h> 20 #include <media/v4l2-ioctl.h> 21 #include <media/v4l2-device.h> 22 #include <media/davinci/vpbe_osd.h> 23 #include <media/davinci/vpbe_venc.h> 24 #include <media/davinci/vpbe_types.h> 25 26 /* OSD configuration info */ 27 struct osd_config_info { 28 char module_name[32]; 29 }; 30 31 struct vpbe_output { 32 struct v4l2_output output; 33 /* 34 * If output capabilities include dv_timings, list supported timings 35 * below 36 */ 37 char *subdev_name; 38 /* 39 * defualt_mode identifies the default timings set at the venc or 40 * external encoder. 41 */ 42 char *default_mode; 43 /* 44 * Fields below are used for supporting multiple modes. For example, 45 * LCD panel might support different modes and they are listed here. 46 * Similarly for supporting external encoders, lcd controller port 47 * requires a set of non-standard timing values to be listed here for 48 * each supported mode since venc is used in non-standard timing mode 49 * for interfacing with external encoder similar to configuring lcd 50 * panel timings 51 */ 52 unsigned int num_modes; 53 struct vpbe_enc_mode_info *modes; 54 /* 55 * Bus configuration goes here for external encoders. Some encoders 56 * may require multiple interface types for each of the output. For 57 * example, SD modes would use YCC8 where as HD mode would use YCC16. 58 * Not sure if this is needed on a per mode basis instead of per 59 * output basis. If per mode is needed, we may have to move this to 60 * mode_info structure 61 */ 62 u32 if_params; 63 }; 64 65 /* encoder configuration info */ 66 struct encoder_config_info { 67 char module_name[32]; 68 /* Is this an i2c device ? */ 69 unsigned int is_i2c:1; 70 /* i2c subdevice board info */ 71 struct i2c_board_info board_info; 72 }; 73 74 /*amplifier configuration info */ 75 struct amp_config_info { 76 char module_name[32]; 77 /* Is this an i2c device ? */ 78 unsigned int is_i2c:1; 79 /* i2c subdevice board info */ 80 struct i2c_board_info board_info; 81 }; 82 83 /* structure for defining vpbe display subsystem components */ 84 struct vpbe_config { 85 char module_name[32]; 86 /* i2c bus adapter no */ 87 int i2c_adapter_id; 88 struct osd_config_info osd; 89 struct encoder_config_info venc; 90 /* external encoder information goes here */ 91 int num_ext_encoders; 92 struct encoder_config_info *ext_encoders; 93 /* amplifier information goes here */ 94 struct amp_config_info *amp; 95 unsigned int num_outputs; 96 /* Order is venc outputs followed by LCD and then external encoders */ 97 struct vpbe_output *outputs; 98 }; 99 100 struct vpbe_device; 101 102 struct vpbe_device_ops { 103 /* crop cap for the display */ 104 int (*g_cropcap)(struct vpbe_device *vpbe_dev, 105 struct v4l2_cropcap *cropcap); 106 107 /* Enumerate the outputs */ 108 int (*enum_outputs)(struct vpbe_device *vpbe_dev, 109 struct v4l2_output *output); 110 111 /* Set output to the given index */ 112 int (*set_output)(struct vpbe_device *vpbe_dev, 113 int index); 114 115 /* Get current output */ 116 unsigned int (*get_output)(struct vpbe_device *vpbe_dev); 117 118 /* Set DV preset at current output */ 119 int (*s_dv_timings)(struct vpbe_device *vpbe_dev, 120 struct v4l2_dv_timings *dv_timings); 121 122 /* Get DV presets supported at the output */ 123 int (*g_dv_timings)(struct vpbe_device *vpbe_dev, 124 struct v4l2_dv_timings *dv_timings); 125 126 /* Enumerate the DV Presets supported at the output */ 127 int (*enum_dv_timings)(struct vpbe_device *vpbe_dev, 128 struct v4l2_enum_dv_timings *timings_info); 129 130 /* Set std at the output */ 131 int (*s_std)(struct vpbe_device *vpbe_dev, v4l2_std_id std_id); 132 133 /* Get the current std at the output */ 134 int (*g_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id); 135 136 /* initialize the device */ 137 int (*initialize)(struct device *dev, struct vpbe_device *vpbe_dev); 138 139 /* De-initialize the device */ 140 void (*deinitialize)(struct device *dev, struct vpbe_device *vpbe_dev); 141 142 /* Get the current mode info */ 143 int (*get_mode_info)(struct vpbe_device *vpbe_dev, 144 struct vpbe_enc_mode_info*); 145 146 /* 147 * Set the current mode in the encoder. Alternate way of setting 148 * standard or DV preset or custom timings in the encoder 149 */ 150 int (*set_mode)(struct vpbe_device *vpbe_dev, 151 struct vpbe_enc_mode_info*); 152 /* Power management operations */ 153 int (*suspend)(struct vpbe_device *vpbe_dev); 154 int (*resume)(struct vpbe_device *vpbe_dev); 155 }; 156 157 /* struct for vpbe device */ 158 struct vpbe_device { 159 /* V4l2 device */ 160 struct v4l2_device v4l2_dev; 161 /* vpbe dispay controller cfg */ 162 struct vpbe_config *cfg; 163 /* parent device */ 164 struct device *pdev; 165 /* external encoder v4l2 sub devices */ 166 struct v4l2_subdev **encoders; 167 /* current encoder index */ 168 int current_sd_index; 169 /* external amplifier v4l2 subdevice */ 170 struct v4l2_subdev *amp; 171 struct mutex lock; 172 /* device initialized */ 173 int initialized; 174 /* vpbe dac clock */ 175 struct clk *dac_clk; 176 /* osd_device pointer */ 177 struct osd_state *osd_device; 178 /* venc device pointer */ 179 struct venc_platform_data *venc_device; 180 /* 181 * fields below are accessed by users of vpbe_device. Not the 182 * ones above 183 */ 184 185 /* current output */ 186 int current_out_index; 187 /* lock used by caller to do atomic operation on vpbe device */ 188 /* current timings set in the controller */ 189 struct vpbe_enc_mode_info current_timings; 190 /* venc sub device */ 191 struct v4l2_subdev *venc; 192 /* device operations below */ 193 struct vpbe_device_ops ops; 194 }; 195 196 #endif 197