root/drivers/gpu/drm/tve200/tve200_drm.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
   4  * Parts of this file were based on sources as follows:
   5  *
   6  * Copyright (C) 2006-2008 Intel Corporation
   7  * Copyright (C) 2007 Amos Lee <amos_lee@storlinksemi.com>
   8  * Copyright (C) 2007 Dave Airlie <airlied@linux.ie>
   9  * Copyright (C) 2011 Texas Instruments
  10  * Copyright (C) 2017 Eric Anholt
  11  */
  12 
  13 #ifndef _TVE200_DRM_H_
  14 #define _TVE200_DRM_H_
  15 
  16 #include <linux/irqreturn.h>
  17 
  18 #include <drm/drm_simple_kms_helper.h>
  19 
  20 struct clk;
  21 struct drm_bridge;
  22 struct drm_connector;
  23 struct drm_device;
  24 struct drm_file;
  25 struct drm_mode_create_dumb;
  26 struct drm_panel;
  27 
  28 /* Bits 2-31 are valid physical base addresses */
  29 #define TVE200_Y_FRAME_BASE_ADDR        0x00
  30 #define TVE200_U_FRAME_BASE_ADDR        0x04
  31 #define TVE200_V_FRAME_BASE_ADDR        0x08
  32 
  33 #define TVE200_INT_EN                   0x0C
  34 #define TVE200_INT_CLR                  0x10
  35 #define TVE200_INT_STAT                 0x14
  36 #define TVE200_INT_BUS_ERR              BIT(7)
  37 #define TVE200_INT_V_STATUS             BIT(6) /* vertical blank */
  38 #define TVE200_INT_V_NEXT_FRAME         BIT(5)
  39 #define TVE200_INT_U_NEXT_FRAME         BIT(4)
  40 #define TVE200_INT_Y_NEXT_FRAME         BIT(3)
  41 #define TVE200_INT_V_FIFO_UNDERRUN      BIT(2)
  42 #define TVE200_INT_U_FIFO_UNDERRUN      BIT(1)
  43 #define TVE200_INT_Y_FIFO_UNDERRUN      BIT(0)
  44 #define TVE200_FIFO_UNDERRUNS           (TVE200_INT_V_FIFO_UNDERRUN | \
  45                                          TVE200_INT_U_FIFO_UNDERRUN | \
  46                                          TVE200_INT_Y_FIFO_UNDERRUN)
  47 
  48 #define TVE200_CTRL                     0x18
  49 #define TVE200_CTRL_YUV420              BIT(31)
  50 #define TVE200_CTRL_CSMODE              BIT(30)
  51 #define TVE200_CTRL_NONINTERLACE        BIT(28) /* 0 = non-interlace CCIR656 */
  52 #define TVE200_CTRL_TVCLKP              BIT(27) /* Inverted clock phase */
  53 /* Bits 24..26 define the burst size after arbitration on the bus */
  54 #define TVE200_CTRL_BURST_4_WORDS       (0 << 24)
  55 #define TVE200_CTRL_BURST_8_WORDS       (1 << 24)
  56 #define TVE200_CTRL_BURST_16_WORDS      (2 << 24)
  57 #define TVE200_CTRL_BURST_32_WORDS      (3 << 24)
  58 #define TVE200_CTRL_BURST_64_WORDS      (4 << 24)
  59 #define TVE200_CTRL_BURST_128_WORDS     (5 << 24)
  60 #define TVE200_CTRL_BURST_256_WORDS     (6 << 24)
  61 #define TVE200_CTRL_BURST_0_WORDS       (7 << 24) /* ? */
  62 /*
  63  * Bits 16..23 is the retry count*16 before issueing a new AHB transfer
  64  * on the AHB bus.
  65  */
  66 #define TVE200_CTRL_RETRYCNT_MASK       GENMASK(23, 16)
  67 #define TVE200_CTRL_RETRYCNT_16         (1 << 16)
  68 #define TVE200_CTRL_BBBP                BIT(15) /* 0 = little-endian */
  69 /* Bits 12..14 define the YCbCr ordering */
  70 #define TVE200_CTRL_YCBCRODR_CB0Y0CR0Y1 (0 << 12)
  71 #define TVE200_CTRL_YCBCRODR_Y0CB0Y1CR0 (1 << 12)
  72 #define TVE200_CTRL_YCBCRODR_CR0Y0CB0Y1 (2 << 12)
  73 #define TVE200_CTRL_YCBCRODR_Y1CB0Y0CR0 (3 << 12)
  74 #define TVE200_CTRL_YCBCRODR_CR0Y1CB0Y0 (4 << 12)
  75 #define TVE200_CTRL_YCBCRODR_Y1CR0Y0CB0 (5 << 12)
  76 #define TVE200_CTRL_YCBCRODR_CB0Y1CR0Y0 (6 << 12)
  77 #define TVE200_CTRL_YCBCRODR_Y0CR0Y1CB0 (7 << 12)
  78 /* Bits 10..11 define the input resolution (framebuffer size) */
  79 #define TVE200_CTRL_IPRESOL_CIF         (0 << 10)
  80 #define TVE200_CTRL_IPRESOL_VGA         (1 << 10)
  81 #define TVE200_CTRL_IPRESOL_D1          (2 << 10)
  82 #define TVE200_CTRL_NTSC                BIT(9) /* 0 = PAL, 1 = NTSC */
  83 #define TVE200_CTRL_INTERLACE           BIT(8) /* 1 = interlace, only for D1 */
  84 #define TVE200_IPDMOD_RGB555            (0 << 6) /* TVE200_CTRL_YUV420 = 0 */
  85 #define TVE200_IPDMOD_RGB565            (1 << 6)
  86 #define TVE200_IPDMOD_RGB888            (2 << 6)
  87 #define TVE200_IPDMOD_YUV420            (2 << 6) /* TVE200_CTRL_YUV420 = 1 */
  88 #define TVE200_IPDMOD_YUV422            (3 << 6)
  89 /* Bits 4 & 5 define when to fire the vblank IRQ */
  90 #define TVE200_VSTSTYPE_VSYNC           (0 << 4) /* start of vsync */
  91 #define TVE200_VSTSTYPE_VBP             (1 << 4) /* start of v back porch */
  92 #define TVE200_VSTSTYPE_VAI             (2 << 4) /* start of v active image */
  93 #define TVE200_VSTSTYPE_VFP             (3 << 4) /* start of v front porch */
  94 #define TVE200_VSTSTYPE_BITS            (BIT(4) | BIT(5))
  95 #define TVE200_BGR                      BIT(1) /* 0 = RGB, 1 = BGR */
  96 #define TVE200_TVEEN                    BIT(0) /* Enable TVE block */
  97 
  98 #define TVE200_CTRL_2                   0x1c
  99 #define TVE200_CTRL_3                   0x20
 100 
 101 #define TVE200_CTRL_4                   0x24
 102 #define TVE200_CTRL_4_RESET             BIT(0) /* triggers reset of TVE200 */
 103 
 104 struct tve200_drm_dev_private {
 105         struct drm_device *drm;
 106 
 107         struct drm_connector *connector;
 108         struct drm_panel *panel;
 109         struct drm_bridge *bridge;
 110         struct drm_simple_display_pipe pipe;
 111 
 112         void *regs;
 113         struct clk *pclk;
 114         struct clk *clk;
 115 };
 116 
 117 #define to_tve200_connector(x) \
 118         container_of(x, struct tve200_drm_connector, connector)
 119 
 120 int tve200_display_init(struct drm_device *dev);
 121 irqreturn_t tve200_irq(int irq, void *data);
 122 int tve200_connector_init(struct drm_device *dev);
 123 int tve200_encoder_init(struct drm_device *dev);
 124 int tve200_dumb_create(struct drm_file *file_priv,
 125                       struct drm_device *dev,
 126                       struct drm_mode_create_dumb *args);
 127 
 128 #endif /* _TVE200_DRM_H_ */