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/* drivers/video/msm_fb/mddi_hw.h
*
* MSM MDDI Hardware Registers and Structures
*
* Copyright (C) 2007 QUALCOMM Incorporated
* Copyright (C) 2007 Google Incorporated
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _MDDI_HW_H_
#define _MDDI_HW_H_
#include <linux/types.h>
#define MDDI_CMD 0x0000
#define MDDI_VERSION 0x0004
#define MDDI_PRI_PTR 0x0008
#define MDDI_SEC_PTR 0x000c
#define MDDI_BPS 0x0010
#define MDDI_SPM 0x0014
#define MDDI_INT 0x0018
#define MDDI_INTEN 0x001c
#define MDDI_REV_PTR 0x0020
#define MDDI_REV_SIZE 0x0024
#define MDDI_STAT 0x0028
#define MDDI_REV_RATE_DIV 0x002c
#define MDDI_REV_CRC_ERR 0x0030
#define MDDI_TA1_LEN 0x0034
#define MDDI_TA2_LEN 0x0038
#define MDDI_TEST_BUS 0x003c
#define MDDI_TEST 0x0040
#define MDDI_REV_PKT_CNT 0x0044
#define MDDI_DRIVE_HI 0x0048
#define MDDI_DRIVE_LO 0x004c
#define MDDI_DISP_WAKE 0x0050
#define MDDI_REV_ENCAP_SZ 0x0054
#define MDDI_RTD_VAL 0x0058
#define MDDI_PAD_CTL 0x0068
#define MDDI_DRIVER_START_CNT 0x006c
#define MDDI_NEXT_PRI_PTR 0x0070
#define MDDI_NEXT_SEC_PTR 0x0074
#define MDDI_MISR_CTL 0x0078
#define MDDI_MISR_DATA 0x007c
#define MDDI_SF_CNT 0x0080
#define MDDI_MF_CNT 0x0084
#define MDDI_CURR_REV_PTR 0x0088
#define MDDI_CORE_VER 0x008c
#define MDDI_INT_PRI_PTR_READ 0x0001
#define MDDI_INT_SEC_PTR_READ 0x0002
#define MDDI_INT_REV_DATA_AVAIL 0x0004
#define MDDI_INT_DISP_REQ 0x0008
#define MDDI_INT_PRI_UNDERFLOW 0x0010
#define MDDI_INT_SEC_UNDERFLOW 0x0020
#define MDDI_INT_REV_OVERFLOW 0x0040
#define MDDI_INT_CRC_ERROR 0x0080
#define MDDI_INT_MDDI_IN 0x0100
#define MDDI_INT_PRI_OVERWRITE 0x0200
#define MDDI_INT_SEC_OVERWRITE 0x0400
#define MDDI_INT_REV_OVERWRITE 0x0800
#define MDDI_INT_DMA_FAILURE 0x1000
#define MDDI_INT_LINK_ACTIVE 0x2000
#define MDDI_INT_IN_HIBERNATION 0x4000
#define MDDI_INT_PRI_LINK_LIST_DONE 0x8000
#define MDDI_INT_SEC_LINK_LIST_DONE 0x10000
#define MDDI_INT_NO_CMD_PKTS_PEND 0x20000
#define MDDI_INT_RTD_FAILURE 0x40000
#define MDDI_INT_REV_PKT_RECEIVED 0x80000
#define MDDI_INT_REV_PKTS_AVAIL 0x100000
#define MDDI_INT_NEED_CLEAR ( \
MDDI_INT_REV_DATA_AVAIL | \
MDDI_INT_PRI_UNDERFLOW | \
MDDI_INT_SEC_UNDERFLOW | \
MDDI_INT_REV_OVERFLOW | \
MDDI_INT_CRC_ERROR | \
MDDI_INT_REV_PKT_RECEIVED)
#define MDDI_STAT_LINK_ACTIVE 0x0001
#define MDDI_STAT_NEW_REV_PTR 0x0002
#define MDDI_STAT_NEW_PRI_PTR 0x0004
#define MDDI_STAT_NEW_SEC_PTR 0x0008
#define MDDI_STAT_IN_HIBERNATION 0x0010
#define MDDI_STAT_PRI_LINK_LIST_DONE 0x0020
#define MDDI_STAT_SEC_LINK_LIST_DONE 0x0040
#define MDDI_STAT_PENDING_TIMING_PKT 0x0080
#define MDDI_STAT_PENDING_REV_ENCAP 0x0100
#define MDDI_STAT_PENDING_POWERDOWN 0x0200
#define MDDI_STAT_RTD_MEAS_FAIL 0x0800
#define MDDI_STAT_CLIENT_WAKEUP_REQ 0x1000
#define MDDI_CMD_POWERDOWN 0x0100
#define MDDI_CMD_POWERUP 0x0200
#define MDDI_CMD_HIBERNATE 0x0300
#define MDDI_CMD_RESET 0x0400
#define MDDI_CMD_DISP_IGNORE 0x0501
#define MDDI_CMD_DISP_LISTEN 0x0500
#define MDDI_CMD_SEND_REV_ENCAP 0x0600
#define MDDI_CMD_GET_CLIENT_CAP 0x0601
#define MDDI_CMD_GET_CLIENT_STATUS 0x0602
#define MDDI_CMD_SEND_RTD 0x0700
#define MDDI_CMD_LINK_ACTIVE 0x0900
#define MDDI_CMD_PERIODIC_REV_ENCAP 0x0A00
#define MDDI_CMD_FORCE_NEW_REV_PTR 0x0C00
#define MDDI_VIDEO_REV_PKT_SIZE 0x40
#define MDDI_CLIENT_CAPABILITY_REV_PKT_SIZE 0x60
#define MDDI_MAX_REV_PKT_SIZE 0x60
/* #define MDDI_REV_BUFFER_SIZE 128 */
#define MDDI_REV_BUFFER_SIZE (MDDI_MAX_REV_PKT_SIZE * 4)
/* MDP sends 256 pixel packets, so lower value hibernates more without
* significantly increasing latency of waiting for next subframe */
#define MDDI_HOST_BYTES_PER_SUBFRAME 0x3C00
#define MDDI_HOST_TA2_LEN 0x000c
#define MDDI_HOST_REV_RATE_DIV 0x0002
struct __attribute__((packed)) mddi_rev_packet {
uint16_t length;
uint16_t type;
uint16_t client_id;
};
struct __attribute__((packed)) mddi_client_status {
uint16_t length;
uint16_t type;
uint16_t client_id;
uint16_t reverse_link_request; /* bytes needed in rev encap message */
uint8_t crc_error_count;
uint8_t capability_change;
uint16_t graphics_busy_flags;
uint16_t crc16;
};
struct __attribute__((packed)) mddi_client_caps {
uint16_t length; /* length, exclusive of this field */
uint16_t type; /* 66 */
uint16_t client_id;
uint16_t Protocol_Version;
uint16_t Minimum_Protocol_Version;
uint16_t Data_Rate_Capability;
uint8_t Interface_Type_Capability;
uint8_t Number_of_Alt_Displays;
uint16_t PostCal_Data_Rate;
uint16_t Bitmap_Width;
uint16_t Bitmap_Height;
uint16_t Display_Window_Width;
uint16_t Display_Window_Height;
uint32_t Color_Map_Size;
uint16_t Color_Map_RGB_Width;
uint16_t RGB_Capability;
uint8_t Monochrome_Capability;
uint8_t Reserved_1;
uint16_t Y_Cb_Cr_Capability;
uint16_t Bayer_Capability;
uint16_t Alpha_Cursor_Image_Planes;
uint32_t Client_Feature_Capability_Indicators;
uint8_t Maximum_Video_Frame_Rate_Capability;
uint8_t Minimum_Video_Frame_Rate_Capability;
uint16_t Minimum_Sub_frame_Rate;
uint16_t Audio_Buffer_Depth;
uint16_t Audio_Channel_Capability;
uint16_t Audio_Sample_Rate_Capability;
uint8_t Audio_Sample_Resolution;
uint8_t Mic_Audio_Sample_Resolution;
uint16_t Mic_Sample_Rate_Capability;
uint8_t Keyboard_Data_Format;
uint8_t pointing_device_data_format;
uint16_t content_protection_type;
uint16_t Mfr_Name;
uint16_t Product_Code;
uint16_t Reserved_3;
uint32_t Serial_Number;
uint8_t Week_of_Manufacture;
uint8_t Year_of_Manufacture;
uint16_t crc16;
} mddi_client_capability_type;
struct __attribute__((packed)) mddi_video_stream {
uint16_t length;
uint16_t type; /* 16 */
uint16_t client_id; /* 0 */
uint16_t video_data_format_descriptor;
/* format of each pixel in the Pixel Data in the present stream in the
* present packet.
* If bits [15:13] = 000 monochrome
* If bits [15:13] = 001 color pixels (palette).
* If bits [15:13] = 010 color pixels in raw RGB
* If bits [15:13] = 011 data in 4:2:2 Y Cb Cr format
* If bits [15:13] = 100 Bayer pixels
*/
uint16_t pixel_data_attributes;
/* interpreted as follows:
* Bits [1:0] = 11 pixel data is displayed to both eyes
* Bits [1:0] = 10 pixel data is routed to the left eye only.
* Bits [1:0] = 01 pixel data is routed to the right eye only.
* Bits [1:0] = 00 pixel data is routed to the alternate display.
* Bit 2 is 0 Pixel Data is in the standard progressive format.
* Bit 2 is 1 Pixel Data is in interlace format.
* Bit 3 is 0 Pixel Data is in the standard progressive format.
* Bit 3 is 1 Pixel Data is in alternate pixel format.
* Bit 4 is 0 Pixel Data is to or from the display frame buffer.
* Bit 4 is 1 Pixel Data is to or from the camera.
* Bit 5 is 0 pixel data contains the next consecutive row of pixels.
* Bit 5 is 1 X Left Edge, Y Top Edge, X Right Edge, Y Bottom Edge,
* X Start, and Y Start parameters are not defined and
* shall be ignored by the client.
* Bits [7:6] = 01 Pixel data is written to the offline image buffer.
* Bits [7:6] = 00 Pixel data is written to the buffer to refresh display.
* Bits [7:6] = 11 Pixel data is written to all image buffers.
* Bits [7:6] = 10 Invalid. Reserved for future use.
* Bits 8 through 11 alternate display number.
* Bits 12 through 14 are reserved for future use and shall be set to zero.
* Bit 15 is 1 the row of pixels is the last row of pixels in a frame.
*/
uint16_t x_left_edge;
uint16_t y_top_edge;
/* X,Y coordinate of the top left edge of the screen window */
uint16_t x_right_edge;
uint16_t y_bottom_edge;
/* X,Y coordinate of the bottom right edge of the window being
* updated. */
uint16_t x_start;
uint16_t y_start;
/* (X Start, Y Start) is the first pixel in the Pixel Data field
* below. */
uint16_t pixel_count;
/* number of pixels in the Pixel Data field below. */
uint16_t parameter_CRC;
/* 16-bit CRC of all bytes from the Packet Length to the Pixel Count. */
uint16_t reserved;
/* 16-bit variable to make structure align on 4 byte boundary */
};
#define TYPE_VIDEO_STREAM 16
#define TYPE_CLIENT_CAPS 66
#define TYPE_REGISTER_ACCESS 146
#define TYPE_CLIENT_STATUS 70
struct __attribute__((packed)) mddi_register_access {
uint16_t length;
uint16_t type; /* 146 */
uint16_t client_id;
uint16_t read_write_info;
/* Bits 13:0 a 14-bit unsigned integer that specifies the number of
* 32-bit Register Data List items to be transferred in the
* Register Data List field.
* Bits[15:14] = 00 Write to register(s);
* Bits[15:14] = 10 Read from register(s);
* Bits[15:14] = 11 Response to a Read.
* Bits[15:14] = 01 this value is reserved for future use. */
#define MDDI_WRITE (0 << 14)
#define MDDI_READ (2 << 14)
#define MDDI_READ_RESP (3 << 14)
uint32_t register_address;
/* the register address that is to be written to or read from. */
uint16_t crc16;
uint32_t register_data_list;
/* list of 4-byte register data values for/from client registers */
};
struct __attribute__((packed)) mddi_llentry {
uint16_t flags;
uint16_t header_count;
uint16_t data_count;
dma_addr_t data; /* 32 bit */
struct mddi_llentry *next;
uint16_t reserved;
union {
struct mddi_video_stream v;
struct mddi_register_access r;
uint32_t _[12];
} u;
};
#endif
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