linux/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * camss-vfe-4-7.c
   4 *
   5 * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module v4.7
   6 *
   7 * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
   8 * Copyright (C) 2015-2018 Linaro Ltd.
   9 */
  10
  11#include <linux/device.h>
  12#include <linux/interrupt.h>
  13#include <linux/io.h>
  14#include <linux/iopoll.h>
  15
  16#include "camss.h"
  17#include "camss-vfe.h"
  18#include "camss-vfe-gen1.h"
  19
  20
  21#define VFE_0_HW_VERSION                0x000
  22
  23#define VFE_0_GLOBAL_RESET_CMD          0x018
  24#define VFE_0_GLOBAL_RESET_CMD_CORE     BIT(0)
  25#define VFE_0_GLOBAL_RESET_CMD_CAMIF    BIT(1)
  26#define VFE_0_GLOBAL_RESET_CMD_BUS      BIT(2)
  27#define VFE_0_GLOBAL_RESET_CMD_BUS_BDG  BIT(3)
  28#define VFE_0_GLOBAL_RESET_CMD_REGISTER BIT(4)
  29#define VFE_0_GLOBAL_RESET_CMD_PM       BIT(5)
  30#define VFE_0_GLOBAL_RESET_CMD_BUS_MISR BIT(6)
  31#define VFE_0_GLOBAL_RESET_CMD_TESTGEN  BIT(7)
  32#define VFE_0_GLOBAL_RESET_CMD_DSP      BIT(8)
  33#define VFE_0_GLOBAL_RESET_CMD_IDLE_CGC BIT(9)
  34
  35#define VFE_0_MODULE_LENS_EN            0x040
  36#define VFE_0_MODULE_LENS_EN_DEMUX              BIT(2)
  37#define VFE_0_MODULE_LENS_EN_CHROMA_UPSAMPLE    BIT(3)
  38
  39#define VFE_0_MODULE_ZOOM_EN            0x04c
  40#define VFE_0_MODULE_ZOOM_EN_SCALE_ENC          BIT(1)
  41#define VFE_0_MODULE_ZOOM_EN_CROP_ENC           BIT(2)
  42#define VFE_0_MODULE_ZOOM_EN_REALIGN_BUF        BIT(9)
  43
  44#define VFE_0_CORE_CFG                  0x050
  45#define VFE_0_CORE_CFG_PIXEL_PATTERN_YCBYCR     0x4
  46#define VFE_0_CORE_CFG_PIXEL_PATTERN_YCRYCB     0x5
  47#define VFE_0_CORE_CFG_PIXEL_PATTERN_CBYCRY     0x6
  48#define VFE_0_CORE_CFG_PIXEL_PATTERN_CRYCBY     0x7
  49#define VFE_0_CORE_CFG_COMPOSITE_REG_UPDATE_EN  BIT(4)
  50
  51#define VFE_0_IRQ_CMD                   0x058
  52#define VFE_0_IRQ_CMD_GLOBAL_CLEAR      BIT(0)
  53
  54#define VFE_0_IRQ_MASK_0                0x05c
  55#define VFE_0_IRQ_MASK_0_CAMIF_SOF                      BIT(0)
  56#define VFE_0_IRQ_MASK_0_CAMIF_EOF                      BIT(1)
  57#define VFE_0_IRQ_MASK_0_RDIn_REG_UPDATE(n)             BIT((n) + 5)
  58#define VFE_0_IRQ_MASK_0_line_n_REG_UPDATE(n)           \
  59        ((n) == VFE_LINE_PIX ? BIT(4) : VFE_0_IRQ_MASK_0_RDIn_REG_UPDATE(n))
  60#define VFE_0_IRQ_MASK_0_IMAGE_MASTER_n_PING_PONG(n)    BIT((n) + 8)
  61#define VFE_0_IRQ_MASK_0_IMAGE_COMPOSITE_DONE_n(n)      BIT((n) + 25)
  62#define VFE_0_IRQ_MASK_0_RESET_ACK                      BIT(31)
  63#define VFE_0_IRQ_MASK_1                0x060
  64#define VFE_0_IRQ_MASK_1_CAMIF_ERROR                    BIT(0)
  65#define VFE_0_IRQ_MASK_1_VIOLATION                      BIT(7)
  66#define VFE_0_IRQ_MASK_1_BUS_BDG_HALT_ACK               BIT(8)
  67#define VFE_0_IRQ_MASK_1_IMAGE_MASTER_n_BUS_OVERFLOW(n) BIT((n) + 9)
  68#define VFE_0_IRQ_MASK_1_RDIn_SOF(n)                    BIT((n) + 29)
  69
  70#define VFE_0_IRQ_CLEAR_0               0x064
  71#define VFE_0_IRQ_CLEAR_1               0x068
  72
  73#define VFE_0_IRQ_STATUS_0              0x06c
  74#define VFE_0_IRQ_STATUS_0_CAMIF_SOF                    BIT(0)
  75#define VFE_0_IRQ_STATUS_0_RDIn_REG_UPDATE(n)           BIT((n) + 5)
  76#define VFE_0_IRQ_STATUS_0_line_n_REG_UPDATE(n)         \
  77        ((n) == VFE_LINE_PIX ? BIT(4) : VFE_0_IRQ_STATUS_0_RDIn_REG_UPDATE(n))
  78#define VFE_0_IRQ_STATUS_0_IMAGE_MASTER_n_PING_PONG(n)  BIT((n) + 8)
  79#define VFE_0_IRQ_STATUS_0_IMAGE_COMPOSITE_DONE_n(n)    BIT((n) + 25)
  80#define VFE_0_IRQ_STATUS_0_RESET_ACK                    BIT(31)
  81#define VFE_0_IRQ_STATUS_1              0x070
  82#define VFE_0_IRQ_STATUS_1_VIOLATION                    BIT(7)
  83#define VFE_0_IRQ_STATUS_1_BUS_BDG_HALT_ACK             BIT(8)
  84#define VFE_0_IRQ_STATUS_1_RDIn_SOF(n)                  BIT((n) + 29)
  85
  86#define VFE_0_IRQ_COMPOSITE_MASK_0      0x074
  87#define VFE_0_VIOLATION_STATUS          0x07c
  88
  89#define VFE_0_BUS_CMD                   0x80
  90#define VFE_0_BUS_CMD_Mx_RLD_CMD(x)     BIT(x)
  91
  92#define VFE_0_BUS_CFG                   0x084
  93
  94#define VFE_0_BUS_XBAR_CFG_x(x)         (0x90 + 0x4 * ((x) / 2))
  95#define VFE_0_BUS_XBAR_CFG_x_M_PAIR_STREAM_EN                   BIT(2)
  96#define VFE_0_BUS_XBAR_CFG_x_M_REALIGN_BUF_EN                   BIT(3)
  97#define VFE_0_BUS_XBAR_CFG_x_M_PAIR_STREAM_SWAP_INTRA           (0x1 << 4)
  98#define VFE_0_BUS_XBAR_CFG_x_M_PAIR_STREAM_SWAP_INTER           (0x2 << 4)
  99#define VFE_0_BUS_XBAR_CFG_x_M_PAIR_STREAM_SWAP_INTER_INTRA     (0x3 << 4)
 100#define VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_SHIFT          8
 101#define VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_LUMA           0x0
 102#define VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI0       0xc
 103#define VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI1       0xd
 104#define VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI2       0xe
 105
 106#define VFE_0_BUS_IMAGE_MASTER_n_WR_CFG(n)              (0x0a0 + 0x2c * (n))
 107#define VFE_0_BUS_IMAGE_MASTER_n_WR_CFG_WR_PATH_SHIFT   0
 108#define VFE_0_BUS_IMAGE_MASTER_n_WR_PING_ADDR(n)        (0x0a4 + 0x2c * (n))
 109#define VFE_0_BUS_IMAGE_MASTER_n_WR_PONG_ADDR(n)        (0x0ac + 0x2c * (n))
 110#define VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG(n)         (0x0b4 + 0x2c * (n))
 111#define VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG_FRM_BASED_SHIFT    1
 112#define VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG_FRM_DROP_PER_SHIFT 2
 113#define VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG_FRM_DROP_PER_MASK  (0x1f << 2)
 114#define VFE_0_BUS_IMAGE_MASTER_n_WR_UB_CFG(n)           (0x0b8 + 0x2c * (n))
 115#define VFE_0_BUS_IMAGE_MASTER_n_WR_UB_CFG_OFFSET_SHIFT 16
 116#define VFE_0_BUS_IMAGE_MASTER_n_WR_IMAGE_SIZE(n)       (0x0bc + 0x2c * (n))
 117#define VFE_0_BUS_IMAGE_MASTER_n_WR_BUFFER_CFG(n)       (0x0c0 + 0x2c * (n))
 118#define VFE_0_BUS_IMAGE_MASTER_n_WR_FRAMEDROP_PATTERN(n)        \
 119                                                        (0x0c4 + 0x2c * (n))
 120#define VFE_0_BUS_IMAGE_MASTER_n_WR_IRQ_SUBSAMPLE_PATTERN(n)    \
 121                                                        (0x0c8 + 0x2c * (n))
 122#define VFE_0_BUS_IMAGE_MASTER_n_WR_IRQ_SUBSAMPLE_PATTERN_DEF   0xffffffff
 123
 124#define VFE_0_BUS_PING_PONG_STATUS      0x338
 125
 126#define VFE_0_BUS_BDG_CMD               0x400
 127#define VFE_0_BUS_BDG_CMD_HALT_REQ      1
 128
 129#define VFE_0_BUS_BDG_QOS_CFG_0         0x404
 130#define VFE_0_BUS_BDG_QOS_CFG_0_CFG     0xaaa9aaa9
 131#define VFE_0_BUS_BDG_QOS_CFG_1         0x408
 132#define VFE_0_BUS_BDG_QOS_CFG_2         0x40c
 133#define VFE_0_BUS_BDG_QOS_CFG_3         0x410
 134#define VFE_0_BUS_BDG_QOS_CFG_4         0x414
 135#define VFE_0_BUS_BDG_QOS_CFG_5         0x418
 136#define VFE_0_BUS_BDG_QOS_CFG_6         0x41c
 137#define VFE_0_BUS_BDG_QOS_CFG_7         0x420
 138#define VFE_0_BUS_BDG_QOS_CFG_7_CFG     0x0001aaa9
 139
 140#define VFE48_0_BUS_BDG_QOS_CFG_0_CFG   0xaaa5aaa5
 141#define VFE48_0_BUS_BDG_QOS_CFG_3_CFG   0xaa55aaa5
 142#define VFE48_0_BUS_BDG_QOS_CFG_4_CFG   0xaa55aa55
 143#define VFE48_0_BUS_BDG_QOS_CFG_7_CFG   0x0005aa55
 144
 145#define VFE_0_BUS_BDG_DS_CFG_0          0x424
 146#define VFE_0_BUS_BDG_DS_CFG_0_CFG      0xcccc0011
 147#define VFE_0_BUS_BDG_DS_CFG_1          0x428
 148#define VFE_0_BUS_BDG_DS_CFG_2          0x42c
 149#define VFE_0_BUS_BDG_DS_CFG_3          0x430
 150#define VFE_0_BUS_BDG_DS_CFG_4          0x434
 151#define VFE_0_BUS_BDG_DS_CFG_5          0x438
 152#define VFE_0_BUS_BDG_DS_CFG_6          0x43c
 153#define VFE_0_BUS_BDG_DS_CFG_7          0x440
 154#define VFE_0_BUS_BDG_DS_CFG_8          0x444
 155#define VFE_0_BUS_BDG_DS_CFG_9          0x448
 156#define VFE_0_BUS_BDG_DS_CFG_10         0x44c
 157#define VFE_0_BUS_BDG_DS_CFG_11         0x450
 158#define VFE_0_BUS_BDG_DS_CFG_12         0x454
 159#define VFE_0_BUS_BDG_DS_CFG_13         0x458
 160#define VFE_0_BUS_BDG_DS_CFG_14         0x45c
 161#define VFE_0_BUS_BDG_DS_CFG_15         0x460
 162#define VFE_0_BUS_BDG_DS_CFG_16         0x464
 163#define VFE_0_BUS_BDG_DS_CFG_16_CFG     0x40000103
 164
 165#define VFE48_0_BUS_BDG_DS_CFG_0_CFG    0xcccc1111
 166#define VFE48_0_BUS_BDG_DS_CFG_16_CFG   0x00000110
 167
 168#define VFE_0_RDI_CFG_x(x)              (0x46c + (0x4 * (x)))
 169#define VFE_0_RDI_CFG_x_RDI_STREAM_SEL_SHIFT    28
 170#define VFE_0_RDI_CFG_x_RDI_STREAM_SEL_MASK     (0xf << 28)
 171#define VFE_0_RDI_CFG_x_RDI_M0_SEL_SHIFT        4
 172#define VFE_0_RDI_CFG_x_RDI_M0_SEL_MASK         (0xf << 4)
 173#define VFE_0_RDI_CFG_x_RDI_EN_BIT              BIT(2)
 174#define VFE_0_RDI_CFG_x_MIPI_EN_BITS            0x3
 175
 176#define VFE_0_CAMIF_CMD                         0x478
 177#define VFE_0_CAMIF_CMD_DISABLE_FRAME_BOUNDARY  0
 178#define VFE_0_CAMIF_CMD_ENABLE_FRAME_BOUNDARY   1
 179#define VFE_0_CAMIF_CMD_NO_CHANGE               3
 180#define VFE_0_CAMIF_CMD_CLEAR_CAMIF_STATUS      BIT(2)
 181#define VFE_0_CAMIF_CFG                         0x47c
 182#define VFE_0_CAMIF_CFG_VFE_OUTPUT_EN           BIT(6)
 183#define VFE_0_CAMIF_FRAME_CFG                   0x484
 184#define VFE_0_CAMIF_WINDOW_WIDTH_CFG            0x488
 185#define VFE_0_CAMIF_WINDOW_HEIGHT_CFG           0x48c
 186#define VFE_0_CAMIF_SUBSAMPLE_CFG               0x490
 187#define VFE_0_CAMIF_IRQ_FRAMEDROP_PATTERN       0x498
 188#define VFE_0_CAMIF_IRQ_SUBSAMPLE_PATTERN       0x49c
 189#define VFE_0_CAMIF_STATUS                      0x4a4
 190#define VFE_0_CAMIF_STATUS_HALT                 BIT(31)
 191
 192#define VFE_0_REG_UPDATE                0x4ac
 193#define VFE_0_REG_UPDATE_RDIn(n)                BIT(1 + (n))
 194#define VFE_0_REG_UPDATE_line_n(n)              \
 195                        ((n) == VFE_LINE_PIX ? 1 : VFE_0_REG_UPDATE_RDIn(n))
 196
 197#define VFE_0_DEMUX_CFG                         0x560
 198#define VFE_0_DEMUX_CFG_PERIOD                  0x3
 199#define VFE_0_DEMUX_GAIN_0                      0x564
 200#define VFE_0_DEMUX_GAIN_0_CH0_EVEN             (0x80 << 0)
 201#define VFE_0_DEMUX_GAIN_0_CH0_ODD              (0x80 << 16)
 202#define VFE_0_DEMUX_GAIN_1                      0x568
 203#define VFE_0_DEMUX_GAIN_1_CH1                  (0x80 << 0)
 204#define VFE_0_DEMUX_GAIN_1_CH2                  (0x80 << 16)
 205#define VFE_0_DEMUX_EVEN_CFG                    0x574
 206#define VFE_0_DEMUX_EVEN_CFG_PATTERN_YUYV       0x9cac
 207#define VFE_0_DEMUX_EVEN_CFG_PATTERN_YVYU       0xac9c
 208#define VFE_0_DEMUX_EVEN_CFG_PATTERN_UYVY       0xc9ca
 209#define VFE_0_DEMUX_EVEN_CFG_PATTERN_VYUY       0xcac9
 210#define VFE_0_DEMUX_ODD_CFG                     0x578
 211#define VFE_0_DEMUX_ODD_CFG_PATTERN_YUYV        0x9cac
 212#define VFE_0_DEMUX_ODD_CFG_PATTERN_YVYU        0xac9c
 213#define VFE_0_DEMUX_ODD_CFG_PATTERN_UYVY        0xc9ca
 214#define VFE_0_DEMUX_ODD_CFG_PATTERN_VYUY        0xcac9
 215
 216#define VFE_0_SCALE_ENC_Y_CFG                   0x91c
 217#define VFE_0_SCALE_ENC_Y_H_IMAGE_SIZE          0x920
 218#define VFE_0_SCALE_ENC_Y_H_PHASE               0x924
 219#define VFE_0_SCALE_ENC_Y_V_IMAGE_SIZE          0x934
 220#define VFE_0_SCALE_ENC_Y_V_PHASE               0x938
 221#define VFE_0_SCALE_ENC_CBCR_CFG                0x948
 222#define VFE_0_SCALE_ENC_CBCR_H_IMAGE_SIZE       0x94c
 223#define VFE_0_SCALE_ENC_CBCR_H_PHASE            0x950
 224#define VFE_0_SCALE_ENC_CBCR_V_IMAGE_SIZE       0x960
 225#define VFE_0_SCALE_ENC_CBCR_V_PHASE            0x964
 226
 227#define VFE_0_CROP_ENC_Y_WIDTH                  0x974
 228#define VFE_0_CROP_ENC_Y_HEIGHT                 0x978
 229#define VFE_0_CROP_ENC_CBCR_WIDTH               0x97c
 230#define VFE_0_CROP_ENC_CBCR_HEIGHT              0x980
 231
 232#define VFE_0_CLAMP_ENC_MAX_CFG                 0x984
 233#define VFE_0_CLAMP_ENC_MAX_CFG_CH0             (0xff << 0)
 234#define VFE_0_CLAMP_ENC_MAX_CFG_CH1             (0xff << 8)
 235#define VFE_0_CLAMP_ENC_MAX_CFG_CH2             (0xff << 16)
 236#define VFE_0_CLAMP_ENC_MIN_CFG                 0x988
 237#define VFE_0_CLAMP_ENC_MIN_CFG_CH0             (0x0 << 0)
 238#define VFE_0_CLAMP_ENC_MIN_CFG_CH1             (0x0 << 8)
 239#define VFE_0_CLAMP_ENC_MIN_CFG_CH2             (0x0 << 16)
 240
 241#define VFE_0_REALIGN_BUF_CFG                   0xaac
 242#define VFE_0_REALIGN_BUF_CFG_CB_ODD_PIXEL     BIT(2)
 243#define VFE_0_REALIGN_BUF_CFG_CR_ODD_PIXEL     BIT(3)
 244#define VFE_0_REALIGN_BUF_CFG_HSUB_ENABLE      BIT(4)
 245
 246#define VFE48_0_BUS_IMAGE_MASTER_CMD            0xcec
 247#define VFE48_0_BUS_IMAGE_MASTER_n_SHIFT(x)     (2 * (x))
 248
 249#define CAMIF_TIMEOUT_SLEEP_US 1000
 250#define CAMIF_TIMEOUT_ALL_US 1000000
 251
 252#define MSM_VFE_VFE0_UB_SIZE 2047
 253#define MSM_VFE_VFE0_UB_SIZE_RDI (MSM_VFE_VFE0_UB_SIZE / 3)
 254#define MSM_VFE_VFE1_UB_SIZE 1535
 255#define MSM_VFE_VFE1_UB_SIZE_RDI (MSM_VFE_VFE1_UB_SIZE / 3)
 256
 257static void vfe_hw_version_read(struct vfe_device *vfe, struct device *dev)
 258{
 259        u32 hw_version = readl_relaxed(vfe->base + VFE_0_HW_VERSION);
 260
 261        dev_err(dev, "VFE HW Version = 0x%08x\n", hw_version);
 262}
 263
 264static u16 vfe_get_ub_size(u8 vfe_id)
 265{
 266        if (vfe_id == 0)
 267                return MSM_VFE_VFE0_UB_SIZE_RDI;
 268        else if (vfe_id == 1)
 269                return MSM_VFE_VFE1_UB_SIZE_RDI;
 270
 271        return 0;
 272}
 273
 274static inline void vfe_reg_clr(struct vfe_device *vfe, u32 reg, u32 clr_bits)
 275{
 276        u32 bits = readl_relaxed(vfe->base + reg);
 277
 278        writel_relaxed(bits & ~clr_bits, vfe->base + reg);
 279}
 280
 281static inline void vfe_reg_set(struct vfe_device *vfe, u32 reg, u32 set_bits)
 282{
 283        u32 bits = readl_relaxed(vfe->base + reg);
 284
 285        writel_relaxed(bits | set_bits, vfe->base + reg);
 286}
 287
 288static void vfe_global_reset(struct vfe_device *vfe)
 289{
 290        u32 reset_bits = VFE_0_GLOBAL_RESET_CMD_IDLE_CGC        |
 291                         VFE_0_GLOBAL_RESET_CMD_DSP             |
 292                         VFE_0_GLOBAL_RESET_CMD_TESTGEN         |
 293                         VFE_0_GLOBAL_RESET_CMD_BUS_MISR        |
 294                         VFE_0_GLOBAL_RESET_CMD_PM              |
 295                         VFE_0_GLOBAL_RESET_CMD_REGISTER        |
 296                         VFE_0_GLOBAL_RESET_CMD_BUS_BDG         |
 297                         VFE_0_GLOBAL_RESET_CMD_BUS             |
 298                         VFE_0_GLOBAL_RESET_CMD_CAMIF           |
 299                         VFE_0_GLOBAL_RESET_CMD_CORE;
 300
 301        writel_relaxed(BIT(31), vfe->base + VFE_0_IRQ_MASK_0);
 302
 303        /* Enforce barrier between IRQ mask setup and global reset */
 304        wmb();
 305        writel_relaxed(reset_bits, vfe->base + VFE_0_GLOBAL_RESET_CMD);
 306}
 307
 308static void vfe_halt_request(struct vfe_device *vfe)
 309{
 310        writel_relaxed(VFE_0_BUS_BDG_CMD_HALT_REQ,
 311                       vfe->base + VFE_0_BUS_BDG_CMD);
 312}
 313
 314static void vfe_halt_clear(struct vfe_device *vfe)
 315{
 316        writel_relaxed(0x0, vfe->base + VFE_0_BUS_BDG_CMD);
 317}
 318
 319static void vfe_wm_enable(struct vfe_device *vfe, u8 wm, u8 enable)
 320{
 321        if (enable)
 322                vfe_reg_set(vfe, VFE_0_BUS_IMAGE_MASTER_n_WR_CFG(wm),
 323                            1 << VFE_0_BUS_IMAGE_MASTER_n_WR_CFG_WR_PATH_SHIFT);
 324        else
 325                vfe_reg_clr(vfe, VFE_0_BUS_IMAGE_MASTER_n_WR_CFG(wm),
 326                            1 << VFE_0_BUS_IMAGE_MASTER_n_WR_CFG_WR_PATH_SHIFT);
 327}
 328
 329static void vfe_wm_frame_based(struct vfe_device *vfe, u8 wm, u8 enable)
 330{
 331        if (enable)
 332                vfe_reg_set(vfe, VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG(wm),
 333                        1 << VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG_FRM_BASED_SHIFT);
 334        else
 335                vfe_reg_clr(vfe, VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG(wm),
 336                        1 << VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG_FRM_BASED_SHIFT);
 337}
 338
 339#define CALC_WORD(width, M, N) (((width) * (M) + (N) - 1) / (N))
 340
 341static int vfe_word_per_line_by_pixel(u32 format, u32 pixel_per_line)
 342{
 343        int val = 0;
 344
 345        switch (format) {
 346        case V4L2_PIX_FMT_NV12:
 347        case V4L2_PIX_FMT_NV21:
 348        case V4L2_PIX_FMT_NV16:
 349        case V4L2_PIX_FMT_NV61:
 350                val = CALC_WORD(pixel_per_line, 1, 8);
 351                break;
 352        case V4L2_PIX_FMT_YUYV:
 353        case V4L2_PIX_FMT_YVYU:
 354        case V4L2_PIX_FMT_UYVY:
 355        case V4L2_PIX_FMT_VYUY:
 356                val = CALC_WORD(pixel_per_line, 2, 8);
 357                break;
 358        }
 359
 360        return val;
 361}
 362
 363static int vfe_word_per_line_by_bytes(u32 bytes_per_line)
 364{
 365        return CALC_WORD(bytes_per_line, 1, 8);
 366}
 367
 368static void vfe_get_wm_sizes(struct v4l2_pix_format_mplane *pix, u8 plane,
 369                             u16 *width, u16 *height, u16 *bytesperline)
 370{
 371        switch (pix->pixelformat) {
 372        case V4L2_PIX_FMT_NV12:
 373        case V4L2_PIX_FMT_NV21:
 374                *width = pix->width;
 375                *height = pix->height;
 376                *bytesperline = pix->plane_fmt[0].bytesperline;
 377                if (plane == 1)
 378                        *height /= 2;
 379                break;
 380        case V4L2_PIX_FMT_NV16:
 381        case V4L2_PIX_FMT_NV61:
 382                *width = pix->width;
 383                *height = pix->height;
 384                *bytesperline = pix->plane_fmt[0].bytesperline;
 385                break;
 386        case V4L2_PIX_FMT_YUYV:
 387        case V4L2_PIX_FMT_YVYU:
 388        case V4L2_PIX_FMT_VYUY:
 389        case V4L2_PIX_FMT_UYVY:
 390                *width = pix->width;
 391                *height = pix->height;
 392                *bytesperline = pix->plane_fmt[plane].bytesperline;
 393                break;
 394
 395        }
 396}
 397
 398static void vfe_wm_line_based(struct vfe_device *vfe, u32 wm,
 399                              struct v4l2_pix_format_mplane *pix,
 400                              u8 plane, u32 enable)
 401{
 402        u32 reg;
 403
 404        if (enable) {
 405                u16 width = 0, height = 0, bytesperline = 0, wpl;
 406
 407                vfe_get_wm_sizes(pix, plane, &width, &height, &bytesperline);
 408
 409                wpl = vfe_word_per_line_by_pixel(pix->pixelformat, width);
 410
 411                reg = height - 1;
 412                reg |= ((wpl + 3) / 4 - 1) << 16;
 413
 414                writel_relaxed(reg, vfe->base +
 415                               VFE_0_BUS_IMAGE_MASTER_n_WR_IMAGE_SIZE(wm));
 416
 417                wpl = vfe_word_per_line_by_bytes(bytesperline);
 418
 419                reg = 0x3;
 420                reg |= (height - 1) << 2;
 421                reg |= ((wpl + 1) / 2) << 16;
 422
 423                writel_relaxed(reg, vfe->base +
 424                               VFE_0_BUS_IMAGE_MASTER_n_WR_BUFFER_CFG(wm));
 425        } else {
 426                writel_relaxed(0, vfe->base +
 427                               VFE_0_BUS_IMAGE_MASTER_n_WR_IMAGE_SIZE(wm));
 428                writel_relaxed(0, vfe->base +
 429                               VFE_0_BUS_IMAGE_MASTER_n_WR_BUFFER_CFG(wm));
 430        }
 431}
 432
 433static void vfe_wm_set_framedrop_period(struct vfe_device *vfe, u8 wm, u8 per)
 434{
 435        u32 reg;
 436
 437        reg = readl_relaxed(vfe->base +
 438                            VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG(wm));
 439
 440        reg &= ~(VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG_FRM_DROP_PER_MASK);
 441
 442        reg |= (per << VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG_FRM_DROP_PER_SHIFT)
 443                & VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG_FRM_DROP_PER_MASK;
 444
 445        writel_relaxed(reg,
 446                       vfe->base + VFE_0_BUS_IMAGE_MASTER_n_WR_ADDR_CFG(wm));
 447}
 448
 449static void vfe_wm_set_framedrop_pattern(struct vfe_device *vfe, u8 wm,
 450                                         u32 pattern)
 451{
 452        writel_relaxed(pattern,
 453               vfe->base + VFE_0_BUS_IMAGE_MASTER_n_WR_FRAMEDROP_PATTERN(wm));
 454}
 455
 456static void vfe_wm_set_ub_cfg(struct vfe_device *vfe, u8 wm,
 457                              u16 offset, u16 depth)
 458{
 459        u32 reg;
 460
 461        reg = (offset << VFE_0_BUS_IMAGE_MASTER_n_WR_UB_CFG_OFFSET_SHIFT) |
 462                depth;
 463        writel_relaxed(reg, vfe->base + VFE_0_BUS_IMAGE_MASTER_n_WR_UB_CFG(wm));
 464}
 465
 466static void vfe_bus_reload_wm(struct vfe_device *vfe, u8 wm)
 467{
 468        /* Enforce barrier between any outstanding register write */
 469        wmb();
 470
 471        writel_relaxed(VFE_0_BUS_CMD_Mx_RLD_CMD(wm), vfe->base + VFE_0_BUS_CMD);
 472
 473        /* Use barrier to make sure bus reload is issued before anything else */
 474        wmb();
 475}
 476
 477static void vfe_wm_set_ping_addr(struct vfe_device *vfe, u8 wm, u32 addr)
 478{
 479        writel_relaxed(addr,
 480                       vfe->base + VFE_0_BUS_IMAGE_MASTER_n_WR_PING_ADDR(wm));
 481}
 482
 483static void vfe_wm_set_pong_addr(struct vfe_device *vfe, u8 wm, u32 addr)
 484{
 485        writel_relaxed(addr,
 486                       vfe->base + VFE_0_BUS_IMAGE_MASTER_n_WR_PONG_ADDR(wm));
 487}
 488
 489static int vfe_wm_get_ping_pong_status(struct vfe_device *vfe, u8 wm)
 490{
 491        u32 reg;
 492
 493        reg = readl_relaxed(vfe->base + VFE_0_BUS_PING_PONG_STATUS);
 494
 495        return (reg >> wm) & 0x1;
 496}
 497
 498static void vfe_bus_enable_wr_if(struct vfe_device *vfe, u8 enable)
 499{
 500        if (enable)
 501                writel_relaxed(0x101, vfe->base + VFE_0_BUS_CFG);
 502        else
 503                writel_relaxed(0, vfe->base + VFE_0_BUS_CFG);
 504}
 505
 506static void vfe_bus_connect_wm_to_rdi(struct vfe_device *vfe, u8 wm,
 507                                      enum vfe_line_id id)
 508{
 509        u32 reg;
 510
 511        reg = VFE_0_RDI_CFG_x_MIPI_EN_BITS;
 512        vfe_reg_set(vfe, VFE_0_RDI_CFG_x(0), reg);
 513
 514        reg = VFE_0_RDI_CFG_x_RDI_EN_BIT;
 515        reg |= ((3 * id) << VFE_0_RDI_CFG_x_RDI_STREAM_SEL_SHIFT) &
 516                VFE_0_RDI_CFG_x_RDI_STREAM_SEL_MASK;
 517        vfe_reg_set(vfe, VFE_0_RDI_CFG_x(id), reg);
 518
 519        switch (id) {
 520        case VFE_LINE_RDI0:
 521        default:
 522                reg = VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI0 <<
 523                      VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_SHIFT;
 524                break;
 525        case VFE_LINE_RDI1:
 526                reg = VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI1 <<
 527                      VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_SHIFT;
 528                break;
 529        case VFE_LINE_RDI2:
 530                reg = VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI2 <<
 531                      VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_SHIFT;
 532                break;
 533        }
 534
 535        if (wm % 2 == 1)
 536                reg <<= 16;
 537
 538        vfe_reg_set(vfe, VFE_0_BUS_XBAR_CFG_x(wm), reg);
 539}
 540
 541static void vfe_wm_set_subsample(struct vfe_device *vfe, u8 wm)
 542{
 543        writel_relaxed(VFE_0_BUS_IMAGE_MASTER_n_WR_IRQ_SUBSAMPLE_PATTERN_DEF,
 544               vfe->base +
 545               VFE_0_BUS_IMAGE_MASTER_n_WR_IRQ_SUBSAMPLE_PATTERN(wm));
 546}
 547
 548static void vfe_bus_disconnect_wm_from_rdi(struct vfe_device *vfe, u8 wm,
 549                                           enum vfe_line_id id)
 550{
 551        u32 reg;
 552
 553        reg = VFE_0_RDI_CFG_x_RDI_EN_BIT;
 554        vfe_reg_clr(vfe, VFE_0_RDI_CFG_x(id), reg);
 555
 556        switch (id) {
 557        case VFE_LINE_RDI0:
 558        default:
 559                reg = VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI0 <<
 560                      VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_SHIFT;
 561                break;
 562        case VFE_LINE_RDI1:
 563                reg = VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI1 <<
 564                      VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_SHIFT;
 565                break;
 566        case VFE_LINE_RDI2:
 567                reg = VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_VAL_RDI2 <<
 568                      VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_SHIFT;
 569                break;
 570        }
 571
 572        if (wm % 2 == 1)
 573                reg <<= 16;
 574
 575        vfe_reg_clr(vfe, VFE_0_BUS_XBAR_CFG_x(wm), reg);
 576}
 577
 578static void vfe_set_xbar_cfg(struct vfe_device *vfe, struct vfe_output *output,
 579                             u8 enable)
 580{
 581        struct vfe_line *line = container_of(output, struct vfe_line, output);
 582        u32 p = line->video_out.active_fmt.fmt.pix_mp.pixelformat;
 583        u32 reg;
 584
 585        switch (p) {
 586        case V4L2_PIX_FMT_NV12:
 587        case V4L2_PIX_FMT_NV21:
 588        case V4L2_PIX_FMT_NV16:
 589        case V4L2_PIX_FMT_NV61:
 590                reg = VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_LUMA <<
 591                        VFE_0_BUS_XBAR_CFG_x_M_SINGLE_STREAM_SEL_SHIFT;
 592
 593                if (output->wm_idx[0] % 2 == 1)
 594                        reg <<= 16;
 595
 596                if (enable)
 597                        vfe_reg_set(vfe,
 598                                    VFE_0_BUS_XBAR_CFG_x(output->wm_idx[0]),
 599                                    reg);
 600                else
 601                        vfe_reg_clr(vfe,
 602                                    VFE_0_BUS_XBAR_CFG_x(output->wm_idx[0]),
 603                                    reg);
 604
 605                reg = VFE_0_BUS_XBAR_CFG_x_M_PAIR_STREAM_EN;
 606                if (p == V4L2_PIX_FMT_NV12 || p == V4L2_PIX_FMT_NV16)
 607                        reg |= VFE_0_BUS_XBAR_CFG_x_M_PAIR_STREAM_SWAP_INTER_INTRA;
 608
 609                if (output->wm_idx[1] % 2 == 1)
 610                        reg <<= 16;
 611
 612                if (enable)
 613                        vfe_reg_set(vfe,
 614                                    VFE_0_BUS_XBAR_CFG_x(output->wm_idx[1]),
 615                                    reg);
 616                else
 617                        vfe_reg_clr(vfe,
 618                                    VFE_0_BUS_XBAR_CFG_x(output->wm_idx[1]),
 619                                    reg);
 620                break;
 621        case V4L2_PIX_FMT_YUYV:
 622        case V4L2_PIX_FMT_YVYU:
 623        case V4L2_PIX_FMT_VYUY:
 624        case V4L2_PIX_FMT_UYVY:
 625                reg = VFE_0_BUS_XBAR_CFG_x_M_REALIGN_BUF_EN;
 626                reg |= VFE_0_BUS_XBAR_CFG_x_M_PAIR_STREAM_EN;
 627
 628                if (p == V4L2_PIX_FMT_YUYV || p == V4L2_PIX_FMT_YVYU)
 629                        reg |= VFE_0_BUS_XBAR_CFG_x_M_PAIR_STREAM_SWAP_INTER_INTRA;
 630
 631                if (output->wm_idx[0] % 2 == 1)
 632                        reg <<= 16;
 633
 634                if (enable)
 635                        vfe_reg_set(vfe,
 636                                    VFE_0_BUS_XBAR_CFG_x(output->wm_idx[0]),
 637                                    reg);
 638                else
 639                        vfe_reg_clr(vfe,
 640                                    VFE_0_BUS_XBAR_CFG_x(output->wm_idx[0]),
 641                                    reg);
 642                break;
 643        default:
 644                break;
 645        }
 646}
 647
 648static void vfe_set_realign_cfg(struct vfe_device *vfe, struct vfe_line *line,
 649                                u8 enable)
 650{
 651        u32 p = line->video_out.active_fmt.fmt.pix_mp.pixelformat;
 652        u32 val = VFE_0_MODULE_ZOOM_EN_REALIGN_BUF;
 653
 654        if (p != V4L2_PIX_FMT_YUYV && p != V4L2_PIX_FMT_YVYU &&
 655                        p != V4L2_PIX_FMT_VYUY && p != V4L2_PIX_FMT_UYVY)
 656                return;
 657
 658        if (enable) {
 659                vfe_reg_set(vfe, VFE_0_MODULE_ZOOM_EN, val);
 660        } else {
 661                vfe_reg_clr(vfe, VFE_0_MODULE_ZOOM_EN, val);
 662                return;
 663        }
 664
 665        val = VFE_0_REALIGN_BUF_CFG_HSUB_ENABLE;
 666
 667        if (p == V4L2_PIX_FMT_UYVY || p == V4L2_PIX_FMT_YUYV)
 668                val |= VFE_0_REALIGN_BUF_CFG_CR_ODD_PIXEL;
 669        else
 670                val |= VFE_0_REALIGN_BUF_CFG_CB_ODD_PIXEL;
 671
 672        writel_relaxed(val, vfe->base + VFE_0_REALIGN_BUF_CFG);
 673}
 674
 675static void vfe_set_rdi_cid(struct vfe_device *vfe, enum vfe_line_id id, u8 cid)
 676{
 677        vfe_reg_clr(vfe, VFE_0_RDI_CFG_x(id),
 678                    VFE_0_RDI_CFG_x_RDI_M0_SEL_MASK);
 679
 680        vfe_reg_set(vfe, VFE_0_RDI_CFG_x(id),
 681                    cid << VFE_0_RDI_CFG_x_RDI_M0_SEL_SHIFT);
 682}
 683
 684static void vfe_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id)
 685{
 686        vfe->reg_update |= VFE_0_REG_UPDATE_line_n(line_id);
 687
 688        /* Enforce barrier between line update and commit */
 689        wmb();
 690        writel_relaxed(vfe->reg_update, vfe->base + VFE_0_REG_UPDATE);
 691
 692        /* Make sure register update is issued before further reg writes */
 693        wmb();
 694}
 695
 696static inline void vfe_reg_update_clear(struct vfe_device *vfe,
 697                                        enum vfe_line_id line_id)
 698{
 699        vfe->reg_update &= ~VFE_0_REG_UPDATE_line_n(line_id);
 700}
 701
 702static void vfe_enable_irq_wm_line(struct vfe_device *vfe, u8 wm,
 703                                   enum vfe_line_id line_id, u8 enable)
 704{
 705        u32 irq_en0 = VFE_0_IRQ_MASK_0_IMAGE_MASTER_n_PING_PONG(wm) |
 706                      VFE_0_IRQ_MASK_0_line_n_REG_UPDATE(line_id);
 707        u32 irq_en1 = VFE_0_IRQ_MASK_1_IMAGE_MASTER_n_BUS_OVERFLOW(wm) |
 708                      VFE_0_IRQ_MASK_1_RDIn_SOF(line_id);
 709
 710        if (enable) {
 711                vfe_reg_set(vfe, VFE_0_IRQ_MASK_0, irq_en0);
 712                vfe_reg_set(vfe, VFE_0_IRQ_MASK_1, irq_en1);
 713        } else {
 714                vfe_reg_clr(vfe, VFE_0_IRQ_MASK_0, irq_en0);
 715                vfe_reg_clr(vfe, VFE_0_IRQ_MASK_1, irq_en1);
 716        }
 717}
 718
 719static void vfe_enable_irq_pix_line(struct vfe_device *vfe, u8 comp,
 720                                    enum vfe_line_id line_id, u8 enable)
 721{
 722        struct vfe_output *output = &vfe->line[line_id].output;
 723        unsigned int i;
 724        u32 irq_en0;
 725        u32 irq_en1;
 726        u32 comp_mask = 0;
 727
 728        irq_en0 = VFE_0_IRQ_MASK_0_CAMIF_SOF;
 729        irq_en0 |= VFE_0_IRQ_MASK_0_CAMIF_EOF;
 730        irq_en0 |= VFE_0_IRQ_MASK_0_IMAGE_COMPOSITE_DONE_n(comp);
 731        irq_en0 |= VFE_0_IRQ_MASK_0_line_n_REG_UPDATE(line_id);
 732        irq_en1 = VFE_0_IRQ_MASK_1_CAMIF_ERROR;
 733        for (i = 0; i < output->wm_num; i++) {
 734                irq_en1 |= VFE_0_IRQ_MASK_1_IMAGE_MASTER_n_BUS_OVERFLOW(
 735                                                        output->wm_idx[i]);
 736                comp_mask |= (1 << output->wm_idx[i]) << comp * 8;
 737        }
 738
 739        if (enable) {
 740                vfe_reg_set(vfe, VFE_0_IRQ_MASK_0, irq_en0);
 741                vfe_reg_set(vfe, VFE_0_IRQ_MASK_1, irq_en1);
 742                vfe_reg_set(vfe, VFE_0_IRQ_COMPOSITE_MASK_0, comp_mask);
 743        } else {
 744                vfe_reg_clr(vfe, VFE_0_IRQ_MASK_0, irq_en0);
 745                vfe_reg_clr(vfe, VFE_0_IRQ_MASK_1, irq_en1);
 746                vfe_reg_clr(vfe, VFE_0_IRQ_COMPOSITE_MASK_0, comp_mask);
 747        }
 748}
 749
 750static void vfe_enable_irq_common(struct vfe_device *vfe)
 751{
 752        u32 irq_en0 = VFE_0_IRQ_MASK_0_RESET_ACK;
 753        u32 irq_en1 = VFE_0_IRQ_MASK_1_VIOLATION |
 754                      VFE_0_IRQ_MASK_1_BUS_BDG_HALT_ACK;
 755
 756        vfe_reg_set(vfe, VFE_0_IRQ_MASK_0, irq_en0);
 757        vfe_reg_set(vfe, VFE_0_IRQ_MASK_1, irq_en1);
 758}
 759
 760static void vfe_set_demux_cfg(struct vfe_device *vfe, struct vfe_line *line)
 761{
 762        u32 val, even_cfg, odd_cfg;
 763
 764        writel_relaxed(VFE_0_DEMUX_CFG_PERIOD, vfe->base + VFE_0_DEMUX_CFG);
 765
 766        val = VFE_0_DEMUX_GAIN_0_CH0_EVEN | VFE_0_DEMUX_GAIN_0_CH0_ODD;
 767        writel_relaxed(val, vfe->base + VFE_0_DEMUX_GAIN_0);
 768
 769        val = VFE_0_DEMUX_GAIN_1_CH1 | VFE_0_DEMUX_GAIN_1_CH2;
 770        writel_relaxed(val, vfe->base + VFE_0_DEMUX_GAIN_1);
 771
 772        switch (line->fmt[MSM_VFE_PAD_SINK].code) {
 773        case MEDIA_BUS_FMT_YUYV8_2X8:
 774                even_cfg = VFE_0_DEMUX_EVEN_CFG_PATTERN_YUYV;
 775                odd_cfg = VFE_0_DEMUX_ODD_CFG_PATTERN_YUYV;
 776                break;
 777        case MEDIA_BUS_FMT_YVYU8_2X8:
 778                even_cfg = VFE_0_DEMUX_EVEN_CFG_PATTERN_YVYU;
 779                odd_cfg = VFE_0_DEMUX_ODD_CFG_PATTERN_YVYU;
 780                break;
 781        case MEDIA_BUS_FMT_UYVY8_2X8:
 782        default:
 783                even_cfg = VFE_0_DEMUX_EVEN_CFG_PATTERN_UYVY;
 784                odd_cfg = VFE_0_DEMUX_ODD_CFG_PATTERN_UYVY;
 785                break;
 786        case MEDIA_BUS_FMT_VYUY8_2X8:
 787                even_cfg = VFE_0_DEMUX_EVEN_CFG_PATTERN_VYUY;
 788                odd_cfg = VFE_0_DEMUX_ODD_CFG_PATTERN_VYUY;
 789                break;
 790        }
 791
 792        writel_relaxed(even_cfg, vfe->base + VFE_0_DEMUX_EVEN_CFG);
 793        writel_relaxed(odd_cfg, vfe->base + VFE_0_DEMUX_ODD_CFG);
 794}
 795
 796static void vfe_set_scale_cfg(struct vfe_device *vfe, struct vfe_line *line)
 797{
 798        u32 p = line->video_out.active_fmt.fmt.pix_mp.pixelformat;
 799        u32 reg;
 800        u16 input, output;
 801        u8 interp_reso;
 802        u32 phase_mult;
 803
 804        writel_relaxed(0x3, vfe->base + VFE_0_SCALE_ENC_Y_CFG);
 805
 806        input = line->fmt[MSM_VFE_PAD_SINK].width - 1;
 807        output = line->compose.width - 1;
 808        reg = (output << 16) | input;
 809        writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_Y_H_IMAGE_SIZE);
 810
 811        interp_reso = vfe_calc_interp_reso(input, output);
 812        phase_mult = input * (1 << (14 + interp_reso)) / output;
 813        reg = (interp_reso << 28) | phase_mult;
 814        writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_Y_H_PHASE);
 815
 816        input = line->fmt[MSM_VFE_PAD_SINK].height - 1;
 817        output = line->compose.height - 1;
 818        reg = (output << 16) | input;
 819        writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_Y_V_IMAGE_SIZE);
 820
 821        interp_reso = vfe_calc_interp_reso(input, output);
 822        phase_mult = input * (1 << (14 + interp_reso)) / output;
 823        reg = (interp_reso << 28) | phase_mult;
 824        writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_Y_V_PHASE);
 825
 826        writel_relaxed(0x3, vfe->base + VFE_0_SCALE_ENC_CBCR_CFG);
 827
 828        input = line->fmt[MSM_VFE_PAD_SINK].width - 1;
 829        output = line->compose.width / 2 - 1;
 830        reg = (output << 16) | input;
 831        writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_H_IMAGE_SIZE);
 832
 833        interp_reso = vfe_calc_interp_reso(input, output);
 834        phase_mult = input * (1 << (14 + interp_reso)) / output;
 835        reg = (interp_reso << 28) | phase_mult;
 836        writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_H_PHASE);
 837
 838        input = line->fmt[MSM_VFE_PAD_SINK].height - 1;
 839        output = line->compose.height - 1;
 840        if (p == V4L2_PIX_FMT_NV12 || p == V4L2_PIX_FMT_NV21)
 841                output = line->compose.height / 2 - 1;
 842        reg = (output << 16) | input;
 843        writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_V_IMAGE_SIZE);
 844
 845        interp_reso = vfe_calc_interp_reso(input, output);
 846        phase_mult = input * (1 << (14 + interp_reso)) / output;
 847        reg = (interp_reso << 28) | phase_mult;
 848        writel_relaxed(reg, vfe->base + VFE_0_SCALE_ENC_CBCR_V_PHASE);
 849}
 850
 851static void vfe_set_crop_cfg(struct vfe_device *vfe, struct vfe_line *line)
 852{
 853        u32 p = line->video_out.active_fmt.fmt.pix_mp.pixelformat;
 854        u32 reg;
 855        u16 first, last;
 856
 857        first = line->crop.left;
 858        last = line->crop.left + line->crop.width - 1;
 859        reg = (first << 16) | last;
 860        writel_relaxed(reg, vfe->base + VFE_0_CROP_ENC_Y_WIDTH);
 861
 862        first = line->crop.top;
 863        last = line->crop.top + line->crop.height - 1;
 864        reg = (first << 16) | last;
 865        writel_relaxed(reg, vfe->base + VFE_0_CROP_ENC_Y_HEIGHT);
 866
 867        first = line->crop.left / 2;
 868        last = line->crop.left / 2 + line->crop.width / 2 - 1;
 869        reg = (first << 16) | last;
 870        writel_relaxed(reg, vfe->base + VFE_0_CROP_ENC_CBCR_WIDTH);
 871
 872        first = line->crop.top;
 873        last = line->crop.top + line->crop.height - 1;
 874        if (p == V4L2_PIX_FMT_NV12 || p == V4L2_PIX_FMT_NV21) {
 875                first = line->crop.top / 2;
 876                last = line->crop.top / 2 + line->crop.height / 2 - 1;
 877        }
 878        reg = (first << 16) | last;
 879        writel_relaxed(reg, vfe->base + VFE_0_CROP_ENC_CBCR_HEIGHT);
 880}
 881
 882static void vfe_set_clamp_cfg(struct vfe_device *vfe)
 883{
 884        u32 val = VFE_0_CLAMP_ENC_MAX_CFG_CH0 |
 885                VFE_0_CLAMP_ENC_MAX_CFG_CH1 |
 886                VFE_0_CLAMP_ENC_MAX_CFG_CH2;
 887
 888        writel_relaxed(val, vfe->base + VFE_0_CLAMP_ENC_MAX_CFG);
 889
 890        val = VFE_0_CLAMP_ENC_MIN_CFG_CH0 |
 891                VFE_0_CLAMP_ENC_MIN_CFG_CH1 |
 892                VFE_0_CLAMP_ENC_MIN_CFG_CH2;
 893
 894        writel_relaxed(val, vfe->base + VFE_0_CLAMP_ENC_MIN_CFG);
 895}
 896
 897static void vfe_set_qos(struct vfe_device *vfe)
 898{
 899        u32 val = VFE_0_BUS_BDG_QOS_CFG_0_CFG;
 900        u32 val7 = VFE_0_BUS_BDG_QOS_CFG_7_CFG;
 901
 902        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_QOS_CFG_0);
 903        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_QOS_CFG_1);
 904        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_QOS_CFG_2);
 905        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_QOS_CFG_3);
 906        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_QOS_CFG_4);
 907        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_QOS_CFG_5);
 908        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_QOS_CFG_6);
 909        writel_relaxed(val7, vfe->base + VFE_0_BUS_BDG_QOS_CFG_7);
 910}
 911
 912static void vfe_set_ds(struct vfe_device *vfe)
 913{
 914        u32 val = VFE_0_BUS_BDG_DS_CFG_0_CFG;
 915        u32 val16 = VFE_0_BUS_BDG_DS_CFG_16_CFG;
 916
 917        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_0);
 918        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_1);
 919        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_2);
 920        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_3);
 921        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_4);
 922        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_5);
 923        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_6);
 924        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_7);
 925        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_8);
 926        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_9);
 927        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_10);
 928        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_11);
 929        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_12);
 930        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_13);
 931        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_14);
 932        writel_relaxed(val, vfe->base + VFE_0_BUS_BDG_DS_CFG_15);
 933        writel_relaxed(val16, vfe->base + VFE_0_BUS_BDG_DS_CFG_16);
 934}
 935
 936static void vfe_set_cgc_override(struct vfe_device *vfe, u8 wm, u8 enable)
 937{
 938        /* empty */
 939}
 940
 941static void vfe_set_camif_cfg(struct vfe_device *vfe, struct vfe_line *line)
 942{
 943        u32 val;
 944
 945        switch (line->fmt[MSM_VFE_PAD_SINK].code) {
 946        case MEDIA_BUS_FMT_YUYV8_2X8:
 947                val = VFE_0_CORE_CFG_PIXEL_PATTERN_YCBYCR;
 948                break;
 949        case MEDIA_BUS_FMT_YVYU8_2X8:
 950                val = VFE_0_CORE_CFG_PIXEL_PATTERN_YCRYCB;
 951                break;
 952        case MEDIA_BUS_FMT_UYVY8_2X8:
 953        default:
 954                val = VFE_0_CORE_CFG_PIXEL_PATTERN_CBYCRY;
 955                break;
 956        case MEDIA_BUS_FMT_VYUY8_2X8:
 957                val = VFE_0_CORE_CFG_PIXEL_PATTERN_CRYCBY;
 958                break;
 959        }
 960
 961        val |= VFE_0_CORE_CFG_COMPOSITE_REG_UPDATE_EN;
 962        writel_relaxed(val, vfe->base + VFE_0_CORE_CFG);
 963
 964        val = line->fmt[MSM_VFE_PAD_SINK].width * 2 - 1;
 965        val |= (line->fmt[MSM_VFE_PAD_SINK].height - 1) << 16;
 966        writel_relaxed(val, vfe->base + VFE_0_CAMIF_FRAME_CFG);
 967
 968        val = line->fmt[MSM_VFE_PAD_SINK].width * 2 - 1;
 969        writel_relaxed(val, vfe->base + VFE_0_CAMIF_WINDOW_WIDTH_CFG);
 970
 971        val = line->fmt[MSM_VFE_PAD_SINK].height - 1;
 972        writel_relaxed(val, vfe->base + VFE_0_CAMIF_WINDOW_HEIGHT_CFG);
 973
 974        val = 0xffffffff;
 975        writel_relaxed(val, vfe->base + VFE_0_CAMIF_SUBSAMPLE_CFG);
 976
 977        val = 0xffffffff;
 978        writel_relaxed(val, vfe->base + VFE_0_CAMIF_IRQ_FRAMEDROP_PATTERN);
 979
 980        val = 0xffffffff;
 981        writel_relaxed(val, vfe->base + VFE_0_CAMIF_IRQ_SUBSAMPLE_PATTERN);
 982
 983        val = VFE_0_RDI_CFG_x_MIPI_EN_BITS;
 984        vfe_reg_set(vfe, VFE_0_RDI_CFG_x(0), val);
 985
 986        val = VFE_0_CAMIF_CFG_VFE_OUTPUT_EN;
 987        writel_relaxed(val, vfe->base + VFE_0_CAMIF_CFG);
 988}
 989
 990static void vfe_set_camif_cmd(struct vfe_device *vfe, u8 enable)
 991{
 992        u32 cmd;
 993
 994        cmd = VFE_0_CAMIF_CMD_CLEAR_CAMIF_STATUS | VFE_0_CAMIF_CMD_NO_CHANGE;
 995        writel_relaxed(cmd, vfe->base + VFE_0_CAMIF_CMD);
 996
 997        /* Make sure camif command is issued written before it is changed again */
 998        wmb();
 999
1000        if (enable)
1001                cmd = VFE_0_CAMIF_CMD_ENABLE_FRAME_BOUNDARY;
1002        else
1003                cmd = VFE_0_CAMIF_CMD_DISABLE_FRAME_BOUNDARY;
1004
1005        writel_relaxed(cmd, vfe->base + VFE_0_CAMIF_CMD);
1006}
1007
1008static void vfe_set_module_cfg(struct vfe_device *vfe, u8 enable)
1009{
1010        u32 val_lens = VFE_0_MODULE_LENS_EN_DEMUX |
1011                       VFE_0_MODULE_LENS_EN_CHROMA_UPSAMPLE;
1012        u32 val_zoom = VFE_0_MODULE_ZOOM_EN_SCALE_ENC |
1013                       VFE_0_MODULE_ZOOM_EN_CROP_ENC;
1014
1015        if (enable) {
1016                vfe_reg_set(vfe, VFE_0_MODULE_LENS_EN, val_lens);
1017                vfe_reg_set(vfe, VFE_0_MODULE_ZOOM_EN, val_zoom);
1018        } else {
1019                vfe_reg_clr(vfe, VFE_0_MODULE_LENS_EN, val_lens);
1020                vfe_reg_clr(vfe, VFE_0_MODULE_ZOOM_EN, val_zoom);
1021        }
1022}
1023
1024static int vfe_camif_wait_for_stop(struct vfe_device *vfe, struct device *dev)
1025{
1026        u32 val;
1027        int ret;
1028
1029        ret = readl_poll_timeout(vfe->base + VFE_0_CAMIF_STATUS,
1030                                 val,
1031                                 (val & VFE_0_CAMIF_STATUS_HALT),
1032                                 CAMIF_TIMEOUT_SLEEP_US,
1033                                 CAMIF_TIMEOUT_ALL_US);
1034        if (ret < 0)
1035                dev_err(dev, "%s: camif stop timeout\n", __func__);
1036
1037        return ret;
1038}
1039
1040
1041
1042/*
1043 * vfe_isr - VFE module interrupt handler
1044 * @irq: Interrupt line
1045 * @dev: VFE device
1046 *
1047 * Return IRQ_HANDLED on success
1048 */
1049static irqreturn_t vfe_isr(int irq, void *dev)
1050{
1051        struct vfe_device *vfe = dev;
1052        u32 value0, value1;
1053        int i, j;
1054
1055        vfe->ops->isr_read(vfe, &value0, &value1);
1056
1057        dev_dbg(vfe->camss->dev, "VFE: status0 = 0x%08x, status1 = 0x%08x\n",
1058                value0, value1);
1059
1060        if (value0 & VFE_0_IRQ_STATUS_0_RESET_ACK)
1061                vfe->isr_ops.reset_ack(vfe);
1062
1063        if (value1 & VFE_0_IRQ_STATUS_1_VIOLATION)
1064                vfe->ops->violation_read(vfe);
1065
1066        if (value1 & VFE_0_IRQ_STATUS_1_BUS_BDG_HALT_ACK)
1067                vfe->isr_ops.halt_ack(vfe);
1068
1069        for (i = VFE_LINE_RDI0; i < vfe->line_num; i++)
1070                if (value0 & VFE_0_IRQ_STATUS_0_line_n_REG_UPDATE(i))
1071                        vfe->isr_ops.reg_update(vfe, i);
1072
1073        if (value0 & VFE_0_IRQ_STATUS_0_CAMIF_SOF)
1074                vfe->isr_ops.sof(vfe, VFE_LINE_PIX);
1075
1076        for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++)
1077                if (value1 & VFE_0_IRQ_STATUS_1_RDIn_SOF(i))
1078                        vfe->isr_ops.sof(vfe, i);
1079
1080        for (i = 0; i < MSM_VFE_COMPOSITE_IRQ_NUM; i++)
1081                if (value0 & VFE_0_IRQ_STATUS_0_IMAGE_COMPOSITE_DONE_n(i)) {
1082                        vfe->isr_ops.comp_done(vfe, i);
1083                        for (j = 0; j < ARRAY_SIZE(vfe->wm_output_map); j++)
1084                                if (vfe->wm_output_map[j] == VFE_LINE_PIX)
1085                                        value0 &= ~VFE_0_IRQ_MASK_0_IMAGE_MASTER_n_PING_PONG(j);
1086                }
1087
1088        for (i = 0; i < MSM_VFE_IMAGE_MASTERS_NUM; i++)
1089                if (value0 & VFE_0_IRQ_STATUS_0_IMAGE_MASTER_n_PING_PONG(i))
1090                        vfe->isr_ops.wm_done(vfe, i);
1091
1092        return IRQ_HANDLED;
1093}
1094
1095static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
1096{
1097        *value0 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_0);
1098        *value1 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_1);
1099
1100        writel_relaxed(*value0, vfe->base + VFE_0_IRQ_CLEAR_0);
1101        writel_relaxed(*value1, vfe->base + VFE_0_IRQ_CLEAR_1);
1102
1103        /* Enforce barrier between local & global IRQ clear */
1104        wmb();
1105        writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
1106}
1107
1108/*
1109 * vfe_pm_domain_off - Disable power domains specific to this VFE.
1110 * @vfe: VFE Device
1111 */
1112static void vfe_pm_domain_off(struct vfe_device *vfe)
1113{
1114        struct camss *camss;
1115
1116        if (!vfe)
1117                return;
1118
1119        camss = vfe->camss;
1120
1121        device_link_del(camss->genpd_link[vfe->id]);
1122}
1123
1124/*
1125 * vfe_pm_domain_on - Enable power domains specific to this VFE.
1126 * @vfe: VFE Device
1127 */
1128static int vfe_pm_domain_on(struct vfe_device *vfe)
1129{
1130        struct camss *camss = vfe->camss;
1131        enum vfe_line_id id = vfe->id;
1132
1133        camss->genpd_link[id] = device_link_add(camss->dev, camss->genpd[id], DL_FLAG_STATELESS |
1134                                                DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
1135
1136        if (!camss->genpd_link[id]) {
1137                dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", id);
1138                return -EINVAL;
1139        }
1140
1141        return 0;
1142}
1143
1144static void vfe_violation_read(struct vfe_device *vfe)
1145{
1146        u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
1147
1148        pr_err_ratelimited("VFE: violation = 0x%08x\n", violation);
1149}
1150
1151static const struct vfe_hw_ops_gen1 vfe_ops_gen1_4_7 = {
1152        .bus_connect_wm_to_rdi = vfe_bus_connect_wm_to_rdi,
1153        .bus_disconnect_wm_from_rdi = vfe_bus_disconnect_wm_from_rdi,
1154        .bus_enable_wr_if = vfe_bus_enable_wr_if,
1155        .bus_reload_wm = vfe_bus_reload_wm,
1156        .camif_wait_for_stop = vfe_camif_wait_for_stop,
1157        .enable_irq_common = vfe_enable_irq_common,
1158        .enable_irq_pix_line = vfe_enable_irq_pix_line,
1159        .enable_irq_wm_line = vfe_enable_irq_wm_line,
1160        .get_ub_size = vfe_get_ub_size,
1161        .halt_clear = vfe_halt_clear,
1162        .halt_request = vfe_halt_request,
1163        .set_camif_cfg = vfe_set_camif_cfg,
1164        .set_camif_cmd = vfe_set_camif_cmd,
1165        .set_cgc_override = vfe_set_cgc_override,
1166        .set_clamp_cfg = vfe_set_clamp_cfg,
1167        .set_crop_cfg = vfe_set_crop_cfg,
1168        .set_demux_cfg = vfe_set_demux_cfg,
1169        .set_ds = vfe_set_ds,
1170        .set_module_cfg = vfe_set_module_cfg,
1171        .set_qos = vfe_set_qos,
1172        .set_rdi_cid = vfe_set_rdi_cid,
1173        .set_realign_cfg = vfe_set_realign_cfg,
1174        .set_scale_cfg = vfe_set_scale_cfg,
1175        .set_xbar_cfg = vfe_set_xbar_cfg,
1176        .wm_enable = vfe_wm_enable,
1177        .wm_frame_based = vfe_wm_frame_based,
1178        .wm_get_ping_pong_status = vfe_wm_get_ping_pong_status,
1179        .wm_line_based = vfe_wm_line_based,
1180        .wm_set_framedrop_pattern = vfe_wm_set_framedrop_pattern,
1181        .wm_set_framedrop_period = vfe_wm_set_framedrop_period,
1182        .wm_set_ping_addr = vfe_wm_set_ping_addr,
1183        .wm_set_pong_addr = vfe_wm_set_pong_addr,
1184        .wm_set_subsample = vfe_wm_set_subsample,
1185        .wm_set_ub_cfg = vfe_wm_set_ub_cfg,
1186};
1187
1188static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
1189{
1190        vfe->isr_ops = vfe_isr_ops_gen1;
1191        vfe->ops_gen1 = &vfe_ops_gen1_4_7;
1192        vfe->video_ops = vfe_video_ops_gen1;
1193
1194        vfe->line_num = VFE_LINE_NUM_GEN1;
1195}
1196
1197const struct vfe_hw_ops vfe_ops_4_7 = {
1198        .global_reset = vfe_global_reset,
1199        .hw_version_read = vfe_hw_version_read,
1200        .isr_read = vfe_isr_read,
1201        .isr = vfe_isr,
1202        .pm_domain_off = vfe_pm_domain_off,
1203        .pm_domain_on = vfe_pm_domain_on,
1204        .reg_update_clear = vfe_reg_update_clear,
1205        .reg_update = vfe_reg_update,
1206        .subdev_init = vfe_subdev_init,
1207        .vfe_disable = vfe_gen1_disable,
1208        .vfe_enable = vfe_gen1_enable,
1209        .vfe_halt = vfe_gen1_halt,
1210        .violation_read = vfe_violation_read,
1211};
1212