drivers/staging/msm/mddihosti.h

   1 /* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
   2  *
   3  * Redistribution and use in source and binary forms, with or without
   4  * modification, are permitted provided that the following conditions are met:
   5  *     * Redistributions of source code must retain the above copyright
   6  *       notice, this list of conditions and the following disclaimer.
   7  *     * Redistributions in binary form must reproduce the above copyright
   8  *       notice, this list of conditions and the following disclaimer in the
   9  *       documentation and/or other materials provided with the distribution.
  10  *     * Neither the name of Code Aurora nor
  11  *       the names of its contributors may be used to endorse or promote
  12  *       products derived from this software without specific prior written
  13  *       permission.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  */
  28
  29 #ifndef MDDIHOSTI_H
  30 #define MDDIHOSTI_H
  31
  32 #include "msm_fb.h"
  33 #include "mddihost.h"
  34 #include <linux/clk.h>
  35
  36 /* Register offsets in MDDI, applies to both msm_pmdh_base and
  37  * (u32)msm_emdh_base. */
  38 #define MDDI_CMD                0x0000
  39 #define MDDI_VERSION            0x0004
  40 #define MDDI_PRI_PTR            0x0008
  41 #define MDDI_BPS                0x0010
  42 #define MDDI_SPM                0x0014
  43 #define MDDI_INT                0x0018
  44 #define MDDI_INTEN              0x001c
  45 #define MDDI_REV_PTR            0x0020
  46 #define MDDI_REV_SIZE           0x0024
  47 #define MDDI_STAT               0x0028
  48 #define MDDI_REV_RATE_DIV       0x002c
  49 #define MDDI_REV_CRC_ERR        0x0030
  50 #define MDDI_TA1_LEN            0x0034
  51 #define MDDI_TA2_LEN            0x0038
  52 #define MDDI_TEST               0x0040
  53 #define MDDI_REV_PKT_CNT        0x0044
  54 #define MDDI_DRIVE_HI           0x0048
  55 #define MDDI_DRIVE_LO           0x004c
  56 #define MDDI_DISP_WAKE          0x0050
  57 #define MDDI_REV_ENCAP_SZ       0x0054
  58 #define MDDI_RTD_VAL            0x0058
  59 #define MDDI_PAD_CTL            0x0068
  60 #define MDDI_DRIVER_START_CNT   0x006c
  61 #define MDDI_CORE_VER           0x008c
  62 #define MDDI_FIFO_ALLOC         0x0090
  63 #define MDDI_PAD_IO_CTL         0x00a0
  64 #define MDDI_PAD_CAL            0x00a4
  65
  66 extern u32 mddi_msg_level;
  67
  68 /* No longer need to write to clear these registers */
  69 #define xxxx_mddi_host_reg_outm(reg, mask, val)  \
  70 do { \
  71         if (host_idx == MDDI_HOST_PRIM) \
  72                 mddi_host_reg_outm_pmdh(reg, mask, val); \
  73         else \
  74                 mddi_host_reg_outm_emdh(reg, mask, val); \
  75 } while (0)
  76
  77 #define mddi_host_reg_outm(reg, mask, val) \
  78 do { \
  79         unsigned long __addr; \
  80         if (host_idx == MDDI_HOST_PRIM) \
  81                 __addr = (u32)msm_pmdh_base + MDDI_##reg; \
  82         else \
  83                 __addr = (u32)msm_emdh_base + MDDI_##reg; \
  84         writel((readl(__addr) & ~(mask)) | ((val) & (mask)), __addr); \
  85 } while (0)
  86
  87 #define xxxx_mddi_host_reg_out(reg, val) \
  88 do { \
  89         if (host_idx == MDDI_HOST_PRIM)  \
  90                 mddi_host_reg_out_pmdh(reg, val); \
  91         else \
  92                 mddi_host_reg_out_emdh(reg, val); \
  93         } while (0)
  94
  95 #define mddi_host_reg_out(reg, val) \
  96 do { \
  97         if (host_idx == MDDI_HOST_PRIM) \
  98                 writel(val, (u32)msm_pmdh_base + MDDI_##reg); \
  99         else \
 100                 writel(val, (u32)msm_emdh_base + MDDI_##reg); \
 101 } while (0)
 102
 103 #define xxxx_mddi_host_reg_in(reg)  \
 104   ((host_idx) ? \
 105      mddi_host_reg_in_emdh(reg) : mddi_host_reg_in_pmdh(reg));
 106
 107 #define mddi_host_reg_in(reg) \
 108 ((host_idx) ? \
 109         readl((u32)msm_emdh_base + MDDI_##reg) : \
 110         readl((u32)msm_pmdh_base + MDDI_##reg)) \
 111
 112 #define xxxx_mddi_host_reg_inm(reg, mask)  \
 113   ((host_idx) ? \
 114     mddi_host_reg_inm_emdh(reg, mask) : \
 115     mddi_host_reg_inm_pmdh(reg, mask);)
 116
 117 #define mddi_host_reg_inm(reg, mask) \
 118 ((host_idx) ? \
 119         readl((u32)msm_emdh_base + MDDI_##reg) & (mask) : \
 120         readl((u32)msm_pmdh_base + MDDI_##reg) & (mask)) \
 121
 122 /* Using non-cacheable pmem, so do nothing */
 123 #define mddi_invalidate_cache_lines(addr_start, num_bytes)
 124 /*
 125  * Using non-cacheable pmem, so do nothing with cache
 126  * but, ensure write goes out to memory
 127  */
 128 #define mddi_flush_cache_lines(addr_start, num_bytes)  \
 129     (void) addr_start; \
 130     (void) num_bytes;  \
 131     memory_barrier()
 132
 133 /* Since this translates to Remote Procedure Calls to check on clock status
 134 * just use a local variable to keep track of io_clock */
 135 #define MDDI_HOST_IS_IO_CLOCK_ON mddi_host_io_clock_on
 136 #define MDDI_HOST_ENABLE_IO_CLOCK
 137 #define MDDI_HOST_DISABLE_IO_CLOCK
 138 #define MDDI_HOST_IS_HCLK_ON mddi_host_hclk_on
 139 #define MDDI_HOST_ENABLE_HCLK
 140 #define MDDI_HOST_DISABLE_HCLK
 141 #define FEATURE_MDDI_HOST_IO_CLOCK_CONTROL_DISABLE
 142 #define FEATURE_MDDI_HOST_HCLK_CONTROL_DISABLE
 143
 144 #define TRAMP_MDDI_HOST_ISR TRAMP_MDDI_PRI_ISR
 145 #define TRAMP_MDDI_HOST_EXT_ISR TRAMP_MDDI_EXT_ISR
 146 #define MDP_LINE_COUNT_BMSK  0x3ff
 147 #define MDP_SYNC_STATUS  0x000c
 148 #define MDP_LINE_COUNT      \
 149 (readl(msm_mdp_base + MDP_SYNC_STATUS) & MDP_LINE_COUNT_BMSK)
 150
 151 /* MDP sends 256 pixel packets, so lower value hibernates more without
 152 * significantly increasing latency of waiting for next subframe */
 153 #define MDDI_HOST_BYTES_PER_SUBFRAME  0x3C00
 154
 155 #if defined(CONFIG_FB_MSM_MDP31) || defined(CONFIG_FB_MSM_MDP40)
 156 #define MDDI_HOST_TA2_LEN       0x001a
 157 #define MDDI_HOST_REV_RATE_DIV  0x0004
 158 #else
 159 #define MDDI_HOST_TA2_LEN       0x000c
 160 #define MDDI_HOST_REV_RATE_DIV  0x0002
 161 #endif
 162
 163 #define MDDI_MSG_EMERG(msg, ...)    \
 164         if (mddi_msg_level > 0)  \
 165                 printk(KERN_EMERG msg, ## __VA_ARGS__);
 166 #define MDDI_MSG_ALERT(msg, ...)    \
 167         if (mddi_msg_level > 1)  \
 168                 printk(KERN_ALERT msg, ## __VA_ARGS__);
 169 #define MDDI_MSG_CRIT(msg, ...)    \
 170         if (mddi_msg_level > 2)  \
 171                 printk(KERN_CRIT msg, ## __VA_ARGS__);
 172 #define MDDI_MSG_ERR(msg, ...)    \
 173         if (mddi_msg_level > 3)  \
 174                 printk(KERN_ERR msg, ## __VA_ARGS__);
 175 #define MDDI_MSG_WARNING(msg, ...)    \
 176         if (mddi_msg_level > 4)  \
 177                 printk(KERN_WARNING msg, ## __VA_ARGS__);
 178 #define MDDI_MSG_NOTICE(msg, ...)    \
 179         if (mddi_msg_level > 5)  \
 180                 printk(KERN_NOTICE msg, ## __VA_ARGS__);
 181 #define MDDI_MSG_INFO(msg, ...)    \
 182         if (mddi_msg_level > 6)  \
 183                 printk(KERN_INFO msg, ## __VA_ARGS__);
 184 #define MDDI_MSG_DEBUG(msg, ...)    \
 185         if (mddi_msg_level > 7)  \
 186                 printk(KERN_DEBUG msg, ## __VA_ARGS__);
 187
 188 #define GCC_PACKED __attribute__((packed))
 189 typedef struct GCC_PACKED {
 190         uint16 packet_length;
 191         /* total # of bytes in the packet not including
 192                 the packet_length field. */
 193
 194         uint16 packet_type;
 195         /* A Packet Type of 70 identifies the packet as
 196                 a Client status Packet. */
 197
 198         uint16 bClient_ID;
 199         /* This field is reserved for future use and shall
 200                 be set to zero. */
 201
 202 } mddi_rev_packet_type;
 203
 204 typedef struct GCC_PACKED {
 205         uint16 packet_length;
 206         /* total # of bytes in the packet not including
 207                 the packet_length field. */
 208
 209         uint16 packet_type;
 210         /* A Packet Type of 70 identifies the packet as
 211                 a Client status Packet. */
 212
 213         uint16 bClient_ID;
 214         /* This field is reserved for future use and shall
 215                 be set to zero. */
 216
 217         uint16 reverse_link_request;
 218         /* 16 bit unsigned integer with number of bytes client
 219                 needs in the * reverse encapsulation message
 220                 to transmit data. */
 221
 222         uint8 crc_error_count;
 223         uint8 capability_change;
 224         uint16 graphics_busy_flags;
 225
 226         uint16 parameter_CRC;
 227         /* 16-bit CRC of all the bytes in the packet
 228                 including Packet Length. */
 229
 230 } mddi_client_status_type;
 231
 232 typedef struct GCC_PACKED {
 233         uint16 packet_length;
 234         /* total # of bytes in the packet not including
 235                 the packet_length field. */
 236
 237         uint16 packet_type;
 238         /* A Packet Type of 66 identifies the packet as
 239                 a Client Capability Packet. */
 240
 241         uint16 bClient_ID;
 242         /* This field is reserved for future use and
 243                 shall be set to zero. */
 244
 245         uint16 Protocol_Version;
 246         uint16 Minimum_Protocol_Version;
 247         uint16 Data_Rate_Capability;
 248         uint8 Interface_Type_Capability;
 249         uint8 Number_of_Alt_Displays;
 250         uint16 PostCal_Data_Rate;
 251         uint16 Bitmap_Width;
 252         uint16 Bitmap_Height;
 253         uint16 Display_Window_Width;
 254         uint16 Display_Window_Height;
 255         uint32 Color_Map_Size;
 256         uint16 Color_Map_RGB_Width;
 257         uint16 RGB_Capability;
 258         uint8 Monochrome_Capability;
 259         uint8 Reserved_1;
 260         uint16 Y_Cb_Cr_Capability;
 261         uint16 Bayer_Capability;
 262         uint16 Alpha_Cursor_Image_Planes;
 263         uint32 Client_Feature_Capability_Indicators;
 264         uint8 Maximum_Video_Frame_Rate_Capability;
 265         uint8 Minimum_Video_Frame_Rate_Capability;
 266         uint16 Minimum_Sub_frame_Rate;
 267         uint16 Audio_Buffer_Depth;
 268         uint16 Audio_Channel_Capability;
 269         uint16 Audio_Sample_Rate_Capability;
 270         uint8 Audio_Sample_Resolution;
 271         uint8 Mic_Audio_Sample_Resolution;
 272         uint16 Mic_Sample_Rate_Capability;
 273         uint8 Keyboard_Data_Format;
 274         uint8 pointing_device_data_format;
 275         uint16 content_protection_type;
 276         uint16 Mfr_Name;
 277         uint16 Product_Code;
 278         uint16 Reserved_3;
 279         uint32 Serial_Number;
 280         uint8 Week_of_Manufacture;
 281         uint8 Year_of_Manufacture;
 282
 283         uint16 parameter_CRC;
 284         /* 16-bit CRC of all the bytes in the packet including Packet Length. */
 285
 286 } mddi_client_capability_type;
 287
 288 typedef struct GCC_PACKED {
 289         uint16 packet_length;
 290         /* total # of bytes in the packet not including the packet_length field. */
 291
 292         uint16 packet_type;
 293         /* A Packet Type of 16 identifies the packet as a Video Stream Packet. */
 294
 295         uint16 bClient_ID;
 296         /* This field is reserved for future use and shall be set to zero. */
 297
 298         uint16 video_data_format_descriptor;
 299         /* format of each pixel in the Pixel Data in the present stream in the
 300          * present packet.
 301          * If bits [15:13] = 000 monochrome
 302          * If bits [15:13] = 001 color pixels (palette).
 303          * If bits [15:13] = 010 color pixels in raw RGB
 304          * If bits [15:13] = 011 data in 4:2:2 Y Cb Cr format
 305          * If bits [15:13] = 100 Bayer pixels
 306          */
 307
 308         uint16 pixel_data_attributes;
 309         /* interpreted as follows:
 310          * Bits [1:0] = 11  pixel data is displayed to both eyes
 311          * Bits [1:0] = 10  pixel data is routed to the left eye only.
 312          * Bits [1:0] = 01  pixel data is routed to the right eye only.
 313          * Bits [1:0] = 00  pixel data is routed to the alternate display.
 314          * Bit 2 is 0  Pixel Data is in the standard progressive format.
 315          * Bit 2 is 1  Pixel Data is in interlace format.
 316          * Bit 3 is 0  Pixel Data is in the standard progressive format.
 317          * Bit 3 is 1  Pixel Data is in alternate pixel format.
 318          * Bit 4 is 0  Pixel Data is to or from the display frame buffer.
 319          * Bit 4 is 1  Pixel Data is to or from the camera.
 320          * Bit 5 is 0  pixel data contains the next consecutive row of pixels.
 321          * Bit 5 is 1  X Left Edge, Y Top Edge, X Right Edge, Y Bottom Edge,
 322          *             X Start, and Y Start parameters are not defined and
 323          *             shall be ignored by the client.
 324          * Bits [7:6] = 01  Pixel data is written to the offline image buffer.
 325          * Bits [7:6] = 00  Pixel data is written to the buffer to refresh display.
 326          * Bits [7:6] = 11  Pixel data is written to all image buffers.
 327          * Bits [7:6] = 10  Invalid. Reserved for future use.
 328          * Bits 8 through 11 alternate display number.
 329          * Bits 12 through 14 are reserved for future use and shall be set to zero.
 330          * Bit 15 is 1 the row of pixels is the last row of pixels in a frame.
 331          */
 332
 333         uint16 x_left_edge;
 334         uint16 y_top_edge;
 335         /* X,Y coordinate of the top left edge of the screen window */
 336
 337         uint16 x_right_edge;
 338         uint16 y_bottom_edge;
 339         /*  X,Y coordinate of the bottom right edge of the window being updated. */
 340
 341         uint16 x_start;
 342         uint16 y_start;
 343         /*  (X Start, Y Start) is the first pixel in the Pixel Data field below. */
 344
 345         uint16 pixel_count;
 346         /*  number of pixels in the Pixel Data field below. */
 347
 348         uint16 parameter_CRC;
 349         /*  16-bit CRC of all bytes from the Packet Length to the Pixel Count. */
 350
 351         uint16 reserved;
 352         /* 16-bit variable to make structure align on 4 byte boundary */
 353
 354 } mddi_video_stream_packet_type;
 355
 356 typedef struct GCC_PACKED {
 357         uint16 packet_length;
 358         /* total # of bytes in the packet not including the packet_length field. */
 359
 360         uint16 packet_type;
 361         /* A Packet Type of 146 identifies the packet as a Register Access Packet. */
 362
 363         uint16 bClient_ID;
 364         /* This field is reserved for future use and shall be set to zero. */
 365
 366         uint16 read_write_info;
 367         /* Bits 13:0  a 14-bit unsigned integer that specifies the number of
 368          *            32-bit Register Data List items to be transferred in the
 369          *            Register Data List field.
 370          * Bits[15:14] = 00  Write to register(s);
 371          * Bits[15:14] = 10  Read from register(s);
 372          * Bits[15:14] = 11  Response to a Read.
 373          * Bits[15:14] = 01  this value is reserved for future use. */
 374
 375         uint32 register_address;
 376         /* the register address that is to be written to or read from. */
 377
 378         uint16 parameter_CRC;
 379         /* 16-bit CRC of all bytes from the Packet Length to the Register Address. */
 380
 381         uint32 register_data_list;
 382         /* list of 4-byte register data values for/from client registers */
 383
 384 } mddi_register_access_packet_type;
 385
 386 typedef union GCC_PACKED {
 387         mddi_video_stream_packet_type video_pkt;
 388         mddi_register_access_packet_type register_pkt;
 389         /* add 48 byte pad to ensure 64 byte llist struct, that can be
 390          * manipulated easily with cache */
 391         uint32 alignment_pad[12];       /* 48 bytes */
 392 } mddi_packet_header_type;
 393
 394 typedef struct GCC_PACKED mddi_host_llist_struct {
 395         uint16 link_controller_flags;
 396         uint16 packet_header_count;
 397         uint16 packet_data_count;
 398         void *packet_data_pointer;
 399         struct mddi_host_llist_struct *next_packet_pointer;
 400         uint16 reserved;
 401         mddi_packet_header_type packet_header;
 402 } mddi_linked_list_type;
 403
 404 typedef struct {
 405         struct completion done_comp;
 406         mddi_llist_done_cb_type done_cb;
 407         uint16 next_idx;
 408         boolean waiting;
 409         boolean in_use;
 410 } mddi_linked_list_notify_type;
 411
 412 #define MDDI_LLIST_POOL_SIZE 0x1000
 413 #define MDDI_MAX_NUM_LLIST_ITEMS (MDDI_LLIST_POOL_SIZE / \
 414                  sizeof(mddi_linked_list_type))
 415 #define UNASSIGNED_INDEX MDDI_MAX_NUM_LLIST_ITEMS
 416 #define MDDI_FIRST_DYNAMIC_LLIST_IDX 0
 417
 418 /* Static llist items can be used for applications that frequently send
 419  * the same set of packets using the linked list interface. */
 420 /* Here we configure for 6 static linked list items:
 421  *  The 1st is used for a the adaptive backlight setting.
 422  *  and the remaining 5 are used for sending window adjustments for
 423  *  MDDI clients that need windowing info sent separate from video
 424  *  packets. */
 425 #define MDDI_NUM_STATIC_ABL_ITEMS 1
 426 #define MDDI_NUM_STATIC_WINDOW_ITEMS 5
 427 #define MDDI_NUM_STATIC_LLIST_ITEMS (MDDI_NUM_STATIC_ABL_ITEMS + \
 428                                 MDDI_NUM_STATIC_WINDOW_ITEMS)
 429 #define MDDI_NUM_DYNAMIC_LLIST_ITEMS (MDDI_MAX_NUM_LLIST_ITEMS - \
 430                                 MDDI_NUM_STATIC_LLIST_ITEMS)
 431
 432 #define MDDI_FIRST_STATIC_LLIST_IDX  MDDI_NUM_DYNAMIC_LLIST_ITEMS
 433 #define MDDI_FIRST_STATIC_ABL_IDX  MDDI_FIRST_STATIC_LLIST_IDX
 434 #define MDDI_FIRST_STATIC_WINDOW_IDX  (MDDI_FIRST_STATIC_LLIST_IDX + \
 435                                 MDDI_NUM_STATIC_ABL_ITEMS)
 436
 437 /* GPIO registers */
 438 #define VSYNC_WAKEUP_REG          0x80
 439 #define GPIO_REG                  0x81
 440 #define GPIO_OUTPUT_REG           0x82
 441 #define GPIO_INTERRUPT_REG        0x83
 442 #define GPIO_INTERRUPT_ENABLE_REG 0x84
 443 #define GPIO_POLARITY_REG         0x85
 444
 445 /* Interrupt Bits */
 446 #define MDDI_INT_PRI_PTR_READ       0x0001
 447 #define MDDI_INT_SEC_PTR_READ       0x0002
 448 #define MDDI_INT_REV_DATA_AVAIL     0x0004
 449 #define MDDI_INT_DISP_REQ           0x0008
 450 #define MDDI_INT_PRI_UNDERFLOW      0x0010
 451 #define MDDI_INT_SEC_UNDERFLOW      0x0020
 452 #define MDDI_INT_REV_OVERFLOW       0x0040
 453 #define MDDI_INT_CRC_ERROR          0x0080
 454 #define MDDI_INT_MDDI_IN            0x0100
 455 #define MDDI_INT_PRI_OVERWRITE      0x0200
 456 #define MDDI_INT_SEC_OVERWRITE      0x0400
 457 #define MDDI_INT_REV_OVERWRITE      0x0800
 458 #define MDDI_INT_DMA_FAILURE        0x1000
 459 #define MDDI_INT_LINK_ACTIVE        0x2000
 460 #define MDDI_INT_IN_HIBERNATION     0x4000
 461 #define MDDI_INT_PRI_LINK_LIST_DONE 0x8000
 462 #define MDDI_INT_SEC_LINK_LIST_DONE 0x10000
 463 #define MDDI_INT_NO_CMD_PKTS_PEND   0x20000
 464 #define MDDI_INT_RTD_FAILURE        0x40000
 465
 466 #define MDDI_INT_ERROR_CONDITIONS ( \
 467         MDDI_INT_PRI_UNDERFLOW | MDDI_INT_SEC_UNDERFLOW | \
 468         MDDI_INT_REV_OVERFLOW | MDDI_INT_CRC_ERROR | \
 469         MDDI_INT_PRI_OVERWRITE | MDDI_INT_SEC_OVERWRITE | \
 470         MDDI_INT_RTD_FAILURE | \
 471         MDDI_INT_REV_OVERWRITE | MDDI_INT_DMA_FAILURE)
 472
 473 #define MDDI_INT_LINK_STATE_CHANGES ( \
 474         MDDI_INT_LINK_ACTIVE | MDDI_INT_IN_HIBERNATION)
 475
 476 /* Status Bits */
 477 #define MDDI_STAT_LINK_ACTIVE        0x0001
 478 #define MDDI_STAT_NEW_REV_PTR        0x0002
 479 #define MDDI_STAT_NEW_PRI_PTR        0x0004
 480 #define MDDI_STAT_NEW_SEC_PTR        0x0008
 481 #define MDDI_STAT_IN_HIBERNATION     0x0010
 482 #define MDDI_STAT_PRI_LINK_LIST_DONE 0x0020
 483 #define MDDI_STAT_SEC_LINK_LIST_DONE 0x0040
 484 #define MDDI_STAT_PENDING_TIMING_PKT 0x0080
 485 #define MDDI_STAT_PENDING_REV_ENCAP  0x0100
 486 #define MDDI_STAT_PENDING_POWERDOWN  0x0200
 487 #define MDDI_STAT_RTD_MEAS_FAIL      0x0800
 488 #define MDDI_STAT_CLIENT_WAKEUP_REQ  0x1000
 489
 490 /* Command Bits */
 491 #define MDDI_CMD_POWERDOWN           0x0100
 492 #define MDDI_CMD_POWERUP             0x0200
 493 #define MDDI_CMD_HIBERNATE           0x0300
 494 #define MDDI_CMD_RESET               0x0400
 495 #define MDDI_CMD_DISP_IGNORE         0x0501
 496 #define MDDI_CMD_DISP_LISTEN         0x0500
 497 #define MDDI_CMD_SEND_REV_ENCAP      0x0600
 498 #define MDDI_CMD_GET_CLIENT_CAP      0x0601
 499 #define MDDI_CMD_GET_CLIENT_STATUS   0x0602
 500 #define MDDI_CMD_SEND_RTD            0x0700
 501 #define MDDI_CMD_LINK_ACTIVE         0x0900
 502 #define MDDI_CMD_PERIODIC_REV_ENCAP  0x0A00
 503
 504 extern void mddi_host_init(mddi_host_type host);
 505 extern void mddi_host_powerdown(mddi_host_type host);
 506 extern uint16 mddi_get_next_free_llist_item(mddi_host_type host, boolean wait);
 507 extern uint16 mddi_get_reg_read_llist_item(mddi_host_type host, boolean wait);
 508 extern void mddi_queue_forward_packets(uint16 first_llist_idx,
 509                                        uint16 last_llist_idx,
 510                                        boolean wait,
 511                                        mddi_llist_done_cb_type llist_done_cb,
 512                                        mddi_host_type host);
 513
 514 extern void mddi_host_write_pix_attr_reg(uint32 value);
 515 extern void mddi_client_lcd_gpio_poll(uint32 poll_reg_val);
 516 extern void mddi_client_lcd_vsync_detected(boolean detected);
 517 extern void mddi_host_disable_hibernation(boolean disable);
 518
 519 extern mddi_linked_list_type *llist_extern[];
 520 extern mddi_linked_list_type *llist_dma_extern[];
 521 extern mddi_linked_list_notify_type *llist_extern_notify[];
 522 extern struct timer_list mddi_host_timer;
 523
 524 typedef struct {
 525         uint16 transmitting_start_idx;
 526         uint16 transmitting_end_idx;
 527         uint16 waiting_start_idx;
 528         uint16 waiting_end_idx;
 529         uint16 reg_read_idx;
 530         uint16 next_free_idx;
 531         boolean reg_read_waiting;
 532 } mddi_llist_info_type;
 533
 534 extern mddi_llist_info_type mddi_llist;
 535
 536 #define MDDI_GPIO_DEFAULT_POLLING_INTERVAL 200
 537 typedef struct {
 538         uint32 polling_reg;
 539         uint32 polling_val;
 540         uint32 polling_interval;
 541         boolean polling_enabled;
 542 } mddi_gpio_info_type;
 543
 544 uint32 mddi_get_client_id(void);
 545 void mddi_mhctl_remove(mddi_host_type host_idx);
 546 void mddi_host_timer_service(unsigned long data);
 547 #endif /* MDDIHOSTI_H */