- 根目录:
- drivers
- staging
- msm
- mddihosti.h
/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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 MDDIHOSTI_H
#define MDDIHOSTI_H
#include "msm_fb.h"
#include "mddihost.h"
#include <linux/clk.h>
/* Register offsets in MDDI, applies to both msm_pmdh_base and
* (u32)msm_emdh_base. */
#define MDDI_CMD 0x0000
#define MDDI_VERSION 0x0004
#define MDDI_PRI_PTR 0x0008
#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 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_CORE_VER 0x008c
#define MDDI_FIFO_ALLOC 0x0090
#define MDDI_PAD_IO_CTL 0x00a0
#define MDDI_PAD_CAL 0x00a4
extern u32 mddi_msg_level;
/* No longer need to write to clear these registers */
#define xxxx_mddi_host_reg_outm(reg, mask, val) \
do { \
if (host_idx == MDDI_HOST_PRIM) \
mddi_host_reg_outm_pmdh(reg, mask, val); \
else \
mddi_host_reg_outm_emdh(reg, mask, val); \
} while (0)
#define mddi_host_reg_outm(reg, mask, val) \
do { \
unsigned long __addr; \
if (host_idx == MDDI_HOST_PRIM) \
__addr = (u32)msm_pmdh_base + MDDI_##reg; \
else \
__addr = (u32)msm_emdh_base + MDDI_##reg; \
writel((readl(__addr) & ~(mask)) | ((val) & (mask)), __addr); \
} while (0)
#define xxxx_mddi_host_reg_out(reg, val) \
do { \
if (host_idx == MDDI_HOST_PRIM) \
mddi_host_reg_out_pmdh(reg, val); \
else \
mddi_host_reg_out_emdh(reg, val); \
} while (0)
#define mddi_host_reg_out(reg, val) \
do { \
if (host_idx == MDDI_HOST_PRIM) \
writel(val, (u32)msm_pmdh_base + MDDI_##reg); \
else \
writel(val, (u32)msm_emdh_base + MDDI_##reg); \
} while (0)
#define xxxx_mddi_host_reg_in(reg) \
((host_idx) ? \
mddi_host_reg_in_emdh(reg) : mddi_host_reg_in_pmdh(reg));
#define mddi_host_reg_in(reg) \
((host_idx) ? \
readl((u32)msm_emdh_base + MDDI_##reg) : \
readl((u32)msm_pmdh_base + MDDI_##reg)) \
#define xxxx_mddi_host_reg_inm(reg, mask) \
((host_idx) ? \
mddi_host_reg_inm_emdh(reg, mask) : \
mddi_host_reg_inm_pmdh(reg, mask);)
#define mddi_host_reg_inm(reg, mask) \
((host_idx) ? \
readl((u32)msm_emdh_base + MDDI_##reg) & (mask) : \
readl((u32)msm_pmdh_base + MDDI_##reg) & (mask)) \
/* Using non-cacheable pmem, so do nothing */
#define mddi_invalidate_cache_lines(addr_start, num_bytes)
/*
* Using non-cacheable pmem, so do nothing with cache
* but, ensure write goes out to memory
*/
#define mddi_flush_cache_lines(addr_start, num_bytes) \
(void) addr_start; \
(void) num_bytes; \
memory_barrier()
/* Since this translates to Remote Procedure Calls to check on clock status
* just use a local variable to keep track of io_clock */
#define MDDI_HOST_IS_IO_CLOCK_ON mddi_host_io_clock_on
#define MDDI_HOST_ENABLE_IO_CLOCK
#define MDDI_HOST_DISABLE_IO_CLOCK
#define MDDI_HOST_IS_HCLK_ON mddi_host_hclk_on
#define MDDI_HOST_ENABLE_HCLK
#define MDDI_HOST_DISABLE_HCLK
#define FEATURE_MDDI_HOST_IO_CLOCK_CONTROL_DISABLE
#define FEATURE_MDDI_HOST_HCLK_CONTROL_DISABLE
#define TRAMP_MDDI_HOST_ISR TRAMP_MDDI_PRI_ISR
#define TRAMP_MDDI_HOST_EXT_ISR TRAMP_MDDI_EXT_ISR
#define MDP_LINE_COUNT_BMSK 0x3ff
#define MDP_SYNC_STATUS 0x000c
#define MDP_LINE_COUNT \
(readl(msm_mdp_base + MDP_SYNC_STATUS) & MDP_LINE_COUNT_BMSK)
/* 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
#if defined(CONFIG_FB_MSM_MDP31) || defined(CONFIG_FB_MSM_MDP40)
#define MDDI_HOST_TA2_LEN 0x001a
#define MDDI_HOST_REV_RATE_DIV 0x0004
#else
#define MDDI_HOST_TA2_LEN 0x000c
#define MDDI_HOST_REV_RATE_DIV 0x0002
#endif
#define MDDI_MSG_EMERG(msg, ...) \
if (mddi_msg_level > 0) \
printk(KERN_EMERG msg, ## __VA_ARGS__);
#define MDDI_MSG_ALERT(msg, ...) \
if (mddi_msg_level > 1) \
printk(KERN_ALERT msg, ## __VA_ARGS__);
#define MDDI_MSG_CRIT(msg, ...) \
if (mddi_msg_level > 2) \
printk(KERN_CRIT msg, ## __VA_ARGS__);
#define MDDI_MSG_ERR(msg, ...) \
if (mddi_msg_level > 3) \
printk(KERN_ERR msg, ## __VA_ARGS__);
#define MDDI_MSG_WARNING(msg, ...) \
if (mddi_msg_level > 4) \
printk(KERN_WARNING msg, ## __VA_ARGS__);
#define MDDI_MSG_NOTICE(msg, ...) \
if (mddi_msg_level > 5) \
printk(KERN_NOTICE msg, ## __VA_ARGS__);
#define MDDI_MSG_INFO(msg, ...) \
if (mddi_msg_level > 6) \
printk(KERN_INFO msg, ## __VA_ARGS__);
#define MDDI_MSG_DEBUG(msg, ...) \
if (mddi_msg_level > 7) \
printk(KERN_DEBUG msg, ## __VA_ARGS__);
#define GCC_PACKED __attribute__((packed))
typedef struct GCC_PACKED {
uint16 packet_length;
/* total # of bytes in the packet not including
the packet_length field. */
uint16 packet_type;
/* A Packet Type of 70 identifies the packet as
a Client status Packet. */
uint16 bClient_ID;
/* This field is reserved for future use and shall
be set to zero. */
} mddi_rev_packet_type;
typedef struct GCC_PACKED {
uint16 packet_length;
/* total # of bytes in the packet not including
the packet_length field. */
uint16 packet_type;
/* A Packet Type of 70 identifies the packet as
a Client status Packet. */
uint16 bClient_ID;
/* This field is reserved for future use and shall
be set to zero. */
uint16 reverse_link_request;
/* 16 bit unsigned integer with number of bytes client
needs in the * reverse encapsulation message
to transmit data. */
uint8 crc_error_count;
uint8 capability_change;
uint16 graphics_busy_flags;
uint16 parameter_CRC;
/* 16-bit CRC of all the bytes in the packet
including Packet Length. */
} mddi_client_status_type;
typedef struct GCC_PACKED {
uint16 packet_length;
/* total # of bytes in the packet not including
the packet_length field. */
uint16 packet_type;
/* A Packet Type of 66 identifies the packet as
a Client Capability Packet. */
uint16 bClient_ID;
/* This field is reserved for future use and
shall be set to zero. */
uint16 Protocol_Version;
uint16 Minimum_Protocol_Version;
uint16 Data_Rate_Capability;
uint8 Interface_Type_Capability;
uint8 Number_of_Alt_Displays;
uint16 PostCal_Data_Rate;
uint16 Bitmap_Width;
uint16 Bitmap_Height;
uint16 Display_Window_Width;
uint16 Display_Window_Height;
uint32 Color_Map_Size;
uint16 Color_Map_RGB_Width;
uint16 RGB_Capability;
uint8 Monochrome_Capability;
uint8 Reserved_1;
uint16 Y_Cb_Cr_Capability;
uint16 Bayer_Capability;
uint16 Alpha_Cursor_Image_Planes;
uint32 Client_Feature_Capability_Indicators;
uint8 Maximum_Video_Frame_Rate_Capability;
uint8 Minimum_Video_Frame_Rate_Capability;
uint16 Minimum_Sub_frame_Rate;
uint16 Audio_Buffer_Depth;
uint16 Audio_Channel_Capability;
uint16 Audio_Sample_Rate_Capability;
uint8 Audio_Sample_Resolution;
uint8 Mic_Audio_Sample_Resolution;
uint16 Mic_Sample_Rate_Capability;
uint8 Keyboard_Data_Format;
uint8 pointing_device_data_format;
uint16 content_protection_type;
uint16 Mfr_Name;
uint16 Product_Code;
uint16 Reserved_3;
uint32 Serial_Number;
uint8 Week_of_Manufacture;
uint8 Year_of_Manufacture;
uint16 parameter_CRC;
/* 16-bit CRC of all the bytes in the packet including Packet Length. */
} mddi_client_capability_type;
typedef struct GCC_PACKED {
uint16 packet_length;
/* total # of bytes in the packet not including the packet_length field. */
uint16 packet_type;
/* A Packet Type of 16 identifies the packet as a Video Stream Packet. */
uint16 bClient_ID;
/* This field is reserved for future use and shall be set to zero. */
uint16 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 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 x_left_edge;
uint16 y_top_edge;
/* X,Y coordinate of the top left edge of the screen window */
uint16 x_right_edge;
uint16 y_bottom_edge;
/* X,Y coordinate of the bottom right edge of the window being updated. */
uint16 x_start;
uint16 y_start;
/* (X Start, Y Start) is the first pixel in the Pixel Data field below. */
uint16 pixel_count;
/* number of pixels in the Pixel Data field below. */
uint16 parameter_CRC;
/* 16-bit CRC of all bytes from the Packet Length to the Pixel Count. */
uint16 reserved;
/* 16-bit variable to make structure align on 4 byte boundary */
} mddi_video_stream_packet_type;
typedef struct GCC_PACKED {
uint16 packet_length;
/* total # of bytes in the packet not including the packet_length field. */
uint16 packet_type;
/* A Packet Type of 146 identifies the packet as a Register Access Packet. */
uint16 bClient_ID;
/* This field is reserved for future use and shall be set to zero. */
uint16 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. */
uint32 register_address;
/* the register address that is to be written to or read from. */
uint16 parameter_CRC;
/* 16-bit CRC of all bytes from the Packet Length to the Register Address. */
uint32 register_data_list;
/* list of 4-byte register data values for/from client registers */
} mddi_register_access_packet_type;
typedef union GCC_PACKED {
mddi_video_stream_packet_type video_pkt;
mddi_register_access_packet_type register_pkt;
/* add 48 byte pad to ensure 64 byte llist struct, that can be
* manipulated easily with cache */
uint32 alignment_pad[12]; /* 48 bytes */
} mddi_packet_header_type;
typedef struct GCC_PACKED mddi_host_llist_struct {
uint16 link_controller_flags;
uint16 packet_header_count;
uint16 packet_data_count;
void *packet_data_pointer;
struct mddi_host_llist_struct *next_packet_pointer;
uint16 reserved;
mddi_packet_header_type packet_header;
} mddi_linked_list_type;
typedef struct {
struct completion done_comp;
mddi_llist_done_cb_type done_cb;
uint16 next_idx;
boolean waiting;
boolean in_use;
} mddi_linked_list_notify_type;
#define MDDI_LLIST_POOL_SIZE 0x1000
#define MDDI_MAX_NUM_LLIST_ITEMS (MDDI_LLIST_POOL_SIZE / \
sizeof(mddi_linked_list_type))
#define UNASSIGNED_INDEX MDDI_MAX_NUM_LLIST_ITEMS
#define MDDI_FIRST_DYNAMIC_LLIST_IDX 0
/* Static llist items can be used for applications that frequently send
* the same set of packets using the linked list interface. */
/* Here we configure for 6 static linked list items:
* The 1st is used for a the adaptive backlight setting.
* and the remaining 5 are used for sending window adjustments for
* MDDI clients that need windowing info sent separate from video
* packets. */
#define MDDI_NUM_STATIC_ABL_ITEMS 1
#define MDDI_NUM_STATIC_WINDOW_ITEMS 5
#define MDDI_NUM_STATIC_LLIST_ITEMS (MDDI_NUM_STATIC_ABL_ITEMS + \
MDDI_NUM_STATIC_WINDOW_ITEMS)
#define MDDI_NUM_DYNAMIC_LLIST_ITEMS (MDDI_MAX_NUM_LLIST_ITEMS - \
MDDI_NUM_STATIC_LLIST_ITEMS)
#define MDDI_FIRST_STATIC_LLIST_IDX MDDI_NUM_DYNAMIC_LLIST_ITEMS
#define MDDI_FIRST_STATIC_ABL_IDX MDDI_FIRST_STATIC_LLIST_IDX
#define MDDI_FIRST_STATIC_WINDOW_IDX (MDDI_FIRST_STATIC_LLIST_IDX + \
MDDI_NUM_STATIC_ABL_ITEMS)
/* GPIO registers */
#define VSYNC_WAKEUP_REG 0x80
#define GPIO_REG 0x81
#define GPIO_OUTPUT_REG 0x82
#define GPIO_INTERRUPT_REG 0x83
#define GPIO_INTERRUPT_ENABLE_REG 0x84
#define GPIO_POLARITY_REG 0x85
/* Interrupt Bits */
#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_ERROR_CONDITIONS ( \
MDDI_INT_PRI_UNDERFLOW | MDDI_INT_SEC_UNDERFLOW | \
MDDI_INT_REV_OVERFLOW | MDDI_INT_CRC_ERROR | \
MDDI_INT_PRI_OVERWRITE | MDDI_INT_SEC_OVERWRITE | \
MDDI_INT_RTD_FAILURE | \
MDDI_INT_REV_OVERWRITE | MDDI_INT_DMA_FAILURE)
#define MDDI_INT_LINK_STATE_CHANGES ( \
MDDI_INT_LINK_ACTIVE | MDDI_INT_IN_HIBERNATION)
/* Status Bits */
#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
/* Command Bits */
#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
extern void mddi_host_init(mddi_host_type host);
extern void mddi_host_powerdown(mddi_host_type host);
extern uint16 mddi_get_next_free_llist_item(mddi_host_type host, boolean wait);
extern uint16 mddi_get_reg_read_llist_item(mddi_host_type host, boolean wait);
extern void mddi_queue_forward_packets(uint16 first_llist_idx,
uint16 last_llist_idx,
boolean wait,
mddi_llist_done_cb_type llist_done_cb,
mddi_host_type host);
extern void mddi_host_write_pix_attr_reg(uint32 value);
extern void mddi_client_lcd_gpio_poll(uint32 poll_reg_val);
extern void mddi_client_lcd_vsync_detected(boolean detected);
extern void mddi_host_disable_hibernation(boolean disable);
extern mddi_linked_list_type *llist_extern[];
extern mddi_linked_list_type *llist_dma_extern[];
extern mddi_linked_list_notify_type *llist_extern_notify[];
extern struct timer_list mddi_host_timer;
typedef struct {
uint16 transmitting_start_idx;
uint16 transmitting_end_idx;
uint16 waiting_start_idx;
uint16 waiting_end_idx;
uint16 reg_read_idx;
uint16 next_free_idx;
boolean reg_read_waiting;
} mddi_llist_info_type;
extern mddi_llist_info_type mddi_llist;
#define MDDI_GPIO_DEFAULT_POLLING_INTERVAL 200
typedef struct {
uint32 polling_reg;
uint32 polling_val;
uint32 polling_interval;
boolean polling_enabled;
} mddi_gpio_info_type;
uint32 mddi_get_client_id(void);
void mddi_mhctl_remove(mddi_host_type host_idx);
void mddi_host_timer_service(unsigned long data);
#endif /* MDDIHOSTI_H */