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d480ace08d
Add a framebuffer driver for Qualcomm MSM/QSD SoCs, tested on HTC Dream smartphone (aka T-Mobile G1, aka ADP1). Brian said: I did the original quick and dirty version for bringup. Rebecca took over and (re)wrote the bulk of the driver, getting things stable for production ship of Dream and Sapphire, and Dima is currently adding support for later Qualcomm chipsets (QSD8x50, etc). Signed-off-by: Pavel Machek <pavel@ucw.cz> Cc: Brian Swetland <swetland@google.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Rebecca Schultz Zavin <rebecca@android.com> Cc: Dima Zavin <dima@android.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
306 lines
10 KiB
C
306 lines
10 KiB
C
/* drivers/video/msm_fb/mddi_hw.h
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*
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* MSM MDDI Hardware Registers and Structures
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*
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* Copyright (C) 2007 QUALCOMM Incorporated
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* Copyright (C) 2007 Google Incorporated
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _MDDI_HW_H_
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#define _MDDI_HW_H_
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#include <linux/types.h>
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#define MDDI_CMD 0x0000
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#define MDDI_VERSION 0x0004
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#define MDDI_PRI_PTR 0x0008
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#define MDDI_SEC_PTR 0x000c
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#define MDDI_BPS 0x0010
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#define MDDI_SPM 0x0014
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#define MDDI_INT 0x0018
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#define MDDI_INTEN 0x001c
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#define MDDI_REV_PTR 0x0020
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#define MDDI_REV_SIZE 0x0024
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#define MDDI_STAT 0x0028
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#define MDDI_REV_RATE_DIV 0x002c
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#define MDDI_REV_CRC_ERR 0x0030
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#define MDDI_TA1_LEN 0x0034
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#define MDDI_TA2_LEN 0x0038
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#define MDDI_TEST_BUS 0x003c
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#define MDDI_TEST 0x0040
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#define MDDI_REV_PKT_CNT 0x0044
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#define MDDI_DRIVE_HI 0x0048
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#define MDDI_DRIVE_LO 0x004c
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#define MDDI_DISP_WAKE 0x0050
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#define MDDI_REV_ENCAP_SZ 0x0054
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#define MDDI_RTD_VAL 0x0058
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#define MDDI_PAD_CTL 0x0068
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#define MDDI_DRIVER_START_CNT 0x006c
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#define MDDI_NEXT_PRI_PTR 0x0070
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#define MDDI_NEXT_SEC_PTR 0x0074
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#define MDDI_MISR_CTL 0x0078
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#define MDDI_MISR_DATA 0x007c
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#define MDDI_SF_CNT 0x0080
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#define MDDI_MF_CNT 0x0084
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#define MDDI_CURR_REV_PTR 0x0088
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#define MDDI_CORE_VER 0x008c
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#define MDDI_INT_PRI_PTR_READ 0x0001
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#define MDDI_INT_SEC_PTR_READ 0x0002
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#define MDDI_INT_REV_DATA_AVAIL 0x0004
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#define MDDI_INT_DISP_REQ 0x0008
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#define MDDI_INT_PRI_UNDERFLOW 0x0010
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#define MDDI_INT_SEC_UNDERFLOW 0x0020
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#define MDDI_INT_REV_OVERFLOW 0x0040
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#define MDDI_INT_CRC_ERROR 0x0080
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#define MDDI_INT_MDDI_IN 0x0100
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#define MDDI_INT_PRI_OVERWRITE 0x0200
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#define MDDI_INT_SEC_OVERWRITE 0x0400
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#define MDDI_INT_REV_OVERWRITE 0x0800
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#define MDDI_INT_DMA_FAILURE 0x1000
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#define MDDI_INT_LINK_ACTIVE 0x2000
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#define MDDI_INT_IN_HIBERNATION 0x4000
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#define MDDI_INT_PRI_LINK_LIST_DONE 0x8000
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#define MDDI_INT_SEC_LINK_LIST_DONE 0x10000
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#define MDDI_INT_NO_CMD_PKTS_PEND 0x20000
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#define MDDI_INT_RTD_FAILURE 0x40000
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#define MDDI_INT_REV_PKT_RECEIVED 0x80000
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#define MDDI_INT_REV_PKTS_AVAIL 0x100000
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#define MDDI_INT_NEED_CLEAR ( \
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MDDI_INT_REV_DATA_AVAIL | \
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MDDI_INT_PRI_UNDERFLOW | \
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MDDI_INT_SEC_UNDERFLOW | \
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MDDI_INT_REV_OVERFLOW | \
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MDDI_INT_CRC_ERROR | \
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MDDI_INT_REV_PKT_RECEIVED)
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#define MDDI_STAT_LINK_ACTIVE 0x0001
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#define MDDI_STAT_NEW_REV_PTR 0x0002
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#define MDDI_STAT_NEW_PRI_PTR 0x0004
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#define MDDI_STAT_NEW_SEC_PTR 0x0008
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#define MDDI_STAT_IN_HIBERNATION 0x0010
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#define MDDI_STAT_PRI_LINK_LIST_DONE 0x0020
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#define MDDI_STAT_SEC_LINK_LIST_DONE 0x0040
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#define MDDI_STAT_PENDING_TIMING_PKT 0x0080
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#define MDDI_STAT_PENDING_REV_ENCAP 0x0100
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#define MDDI_STAT_PENDING_POWERDOWN 0x0200
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#define MDDI_STAT_RTD_MEAS_FAIL 0x0800
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#define MDDI_STAT_CLIENT_WAKEUP_REQ 0x1000
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#define MDDI_CMD_POWERDOWN 0x0100
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#define MDDI_CMD_POWERUP 0x0200
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#define MDDI_CMD_HIBERNATE 0x0300
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#define MDDI_CMD_RESET 0x0400
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#define MDDI_CMD_DISP_IGNORE 0x0501
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#define MDDI_CMD_DISP_LISTEN 0x0500
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#define MDDI_CMD_SEND_REV_ENCAP 0x0600
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#define MDDI_CMD_GET_CLIENT_CAP 0x0601
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#define MDDI_CMD_GET_CLIENT_STATUS 0x0602
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#define MDDI_CMD_SEND_RTD 0x0700
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#define MDDI_CMD_LINK_ACTIVE 0x0900
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#define MDDI_CMD_PERIODIC_REV_ENCAP 0x0A00
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#define MDDI_CMD_FORCE_NEW_REV_PTR 0x0C00
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#define MDDI_VIDEO_REV_PKT_SIZE 0x40
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#define MDDI_CLIENT_CAPABILITY_REV_PKT_SIZE 0x60
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#define MDDI_MAX_REV_PKT_SIZE 0x60
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/* #define MDDI_REV_BUFFER_SIZE 128 */
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#define MDDI_REV_BUFFER_SIZE (MDDI_MAX_REV_PKT_SIZE * 4)
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/* MDP sends 256 pixel packets, so lower value hibernates more without
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* significantly increasing latency of waiting for next subframe */
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#define MDDI_HOST_BYTES_PER_SUBFRAME 0x3C00
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#define MDDI_HOST_TA2_LEN 0x000c
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#define MDDI_HOST_REV_RATE_DIV 0x0002
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struct __attribute__((packed)) mddi_rev_packet {
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uint16_t length;
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uint16_t type;
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uint16_t client_id;
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};
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struct __attribute__((packed)) mddi_client_status {
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uint16_t length;
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uint16_t type;
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uint16_t client_id;
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uint16_t reverse_link_request; /* bytes needed in rev encap message */
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uint8_t crc_error_count;
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uint8_t capability_change;
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uint16_t graphics_busy_flags;
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uint16_t crc16;
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};
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struct __attribute__((packed)) mddi_client_caps {
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uint16_t length; /* length, exclusive of this field */
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uint16_t type; /* 66 */
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uint16_t client_id;
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uint16_t Protocol_Version;
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uint16_t Minimum_Protocol_Version;
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uint16_t Data_Rate_Capability;
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uint8_t Interface_Type_Capability;
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uint8_t Number_of_Alt_Displays;
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uint16_t PostCal_Data_Rate;
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uint16_t Bitmap_Width;
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uint16_t Bitmap_Height;
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uint16_t Display_Window_Width;
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uint16_t Display_Window_Height;
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uint32_t Color_Map_Size;
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uint16_t Color_Map_RGB_Width;
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uint16_t RGB_Capability;
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uint8_t Monochrome_Capability;
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uint8_t Reserved_1;
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uint16_t Y_Cb_Cr_Capability;
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uint16_t Bayer_Capability;
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uint16_t Alpha_Cursor_Image_Planes;
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uint32_t Client_Feature_Capability_Indicators;
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uint8_t Maximum_Video_Frame_Rate_Capability;
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uint8_t Minimum_Video_Frame_Rate_Capability;
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uint16_t Minimum_Sub_frame_Rate;
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uint16_t Audio_Buffer_Depth;
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uint16_t Audio_Channel_Capability;
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uint16_t Audio_Sample_Rate_Capability;
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uint8_t Audio_Sample_Resolution;
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uint8_t Mic_Audio_Sample_Resolution;
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uint16_t Mic_Sample_Rate_Capability;
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uint8_t Keyboard_Data_Format;
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uint8_t pointing_device_data_format;
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uint16_t content_protection_type;
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uint16_t Mfr_Name;
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uint16_t Product_Code;
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uint16_t Reserved_3;
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uint32_t Serial_Number;
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uint8_t Week_of_Manufacture;
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uint8_t Year_of_Manufacture;
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uint16_t crc16;
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} mddi_client_capability_type;
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struct __attribute__((packed)) mddi_video_stream {
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uint16_t length;
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uint16_t type; /* 16 */
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uint16_t client_id; /* 0 */
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uint16_t video_data_format_descriptor;
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/* format of each pixel in the Pixel Data in the present stream in the
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* present packet.
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* If bits [15:13] = 000 monochrome
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* If bits [15:13] = 001 color pixels (palette).
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* If bits [15:13] = 010 color pixels in raw RGB
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* If bits [15:13] = 011 data in 4:2:2 Y Cb Cr format
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* If bits [15:13] = 100 Bayer pixels
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*/
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uint16_t pixel_data_attributes;
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/* interpreted as follows:
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* Bits [1:0] = 11 pixel data is displayed to both eyes
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* Bits [1:0] = 10 pixel data is routed to the left eye only.
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* Bits [1:0] = 01 pixel data is routed to the right eye only.
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* Bits [1:0] = 00 pixel data is routed to the alternate display.
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* Bit 2 is 0 Pixel Data is in the standard progressive format.
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* Bit 2 is 1 Pixel Data is in interlace format.
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* Bit 3 is 0 Pixel Data is in the standard progressive format.
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* Bit 3 is 1 Pixel Data is in alternate pixel format.
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* Bit 4 is 0 Pixel Data is to or from the display frame buffer.
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* Bit 4 is 1 Pixel Data is to or from the camera.
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* Bit 5 is 0 pixel data contains the next consecutive row of pixels.
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* Bit 5 is 1 X Left Edge, Y Top Edge, X Right Edge, Y Bottom Edge,
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* X Start, and Y Start parameters are not defined and
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* shall be ignored by the client.
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* Bits [7:6] = 01 Pixel data is written to the offline image buffer.
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* Bits [7:6] = 00 Pixel data is written to the buffer to refresh display.
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* Bits [7:6] = 11 Pixel data is written to all image buffers.
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* Bits [7:6] = 10 Invalid. Reserved for future use.
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* Bits 8 through 11 alternate display number.
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* Bits 12 through 14 are reserved for future use and shall be set to zero.
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* Bit 15 is 1 the row of pixels is the last row of pixels in a frame.
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*/
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uint16_t x_left_edge;
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uint16_t y_top_edge;
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/* X,Y coordinate of the top left edge of the screen window */
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uint16_t x_right_edge;
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uint16_t y_bottom_edge;
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/* X,Y coordinate of the bottom right edge of the window being
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* updated. */
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uint16_t x_start;
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uint16_t y_start;
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/* (X Start, Y Start) is the first pixel in the Pixel Data field
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* below. */
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uint16_t pixel_count;
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/* number of pixels in the Pixel Data field below. */
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uint16_t parameter_CRC;
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/* 16-bit CRC of all bytes from the Packet Length to the Pixel Count. */
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uint16_t reserved;
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/* 16-bit variable to make structure align on 4 byte boundary */
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};
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#define TYPE_VIDEO_STREAM 16
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#define TYPE_CLIENT_CAPS 66
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#define TYPE_REGISTER_ACCESS 146
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#define TYPE_CLIENT_STATUS 70
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struct __attribute__((packed)) mddi_register_access {
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uint16_t length;
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uint16_t type; /* 146 */
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uint16_t client_id;
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uint16_t read_write_info;
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/* Bits 13:0 a 14-bit unsigned integer that specifies the number of
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* 32-bit Register Data List items to be transferred in the
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* Register Data List field.
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* Bits[15:14] = 00 Write to register(s);
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* Bits[15:14] = 10 Read from register(s);
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* Bits[15:14] = 11 Response to a Read.
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* Bits[15:14] = 01 this value is reserved for future use. */
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#define MDDI_WRITE (0 << 14)
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#define MDDI_READ (2 << 14)
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#define MDDI_READ_RESP (3 << 14)
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uint32_t register_address;
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/* the register address that is to be written to or read from. */
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uint16_t crc16;
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uint32_t register_data_list;
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/* list of 4-byte register data values for/from client registers */
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};
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struct __attribute__((packed)) mddi_llentry {
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uint16_t flags;
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uint16_t header_count;
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uint16_t data_count;
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dma_addr_t data; /* 32 bit */
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struct mddi_llentry *next;
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uint16_t reserved;
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union {
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struct mddi_video_stream v;
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struct mddi_register_access r;
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uint32_t _[12];
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} u;
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};
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#endif
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