include/media/i2c/tc358743.h

   1 /*
   2  * tc358743 - Toshiba HDMI to CSI-2 bridge
   3  *
   4  * Copyright 2015 Cisco Systems, Inc. and/or its affiliates. All rights
   5  * reserved.
   6  *
   7  * This program is free software; you may redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  12  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  13  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  14  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  15  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  16  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  17  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  18  * SOFTWARE.
  19  *
  20  */
  21
  22 /*
  23  * References (c = chapter, p = page):
  24  * REF_01 - Toshiba, TC358743XBG (H2C), Functional Specification, Rev 0.60
  25  * REF_02 - Toshiba, TC358743XBG_HDMI-CSI_Tv11p_nm.xls
  26  */
  27
  28 #ifndef _TC358743_
  29 #define _TC358743_
  30
  31 enum tc358743_ddc5v_delays {
  32         DDC5V_DELAY_0_MS,
  33         DDC5V_DELAY_50_MS,
  34         DDC5V_DELAY_100_MS,
  35         DDC5V_DELAY_200_MS,
  36 };
  37
  38 enum tc358743_hdmi_detection_delay {
  39         HDMI_MODE_DELAY_0_MS,
  40         HDMI_MODE_DELAY_25_MS,
  41         HDMI_MODE_DELAY_50_MS,
  42         HDMI_MODE_DELAY_100_MS,
  43 };
  44
  45 struct tc358743_platform_data {
  46         /* System clock connected to REFCLK (pin H5) */
  47         u32 refclk_hz; /* 26 MHz, 27 MHz or 42 MHz */
  48
  49         /* DDC +5V debounce delay to avoid spurious interrupts when the cable
  50          * is connected.
  51          * Sets DDC5V_MODE in register DDC_CTL.
  52          * Default: DDC5V_DELAY_0_MS
  53          */
  54         enum tc358743_ddc5v_delays ddc5v_delay;
  55
  56         bool enable_hdcp;
  57
  58         /*
  59          * The FIFO size is 512x32, so Toshiba recommend to set the default FIFO
  60          * level to somewhere in the middle (e.g. 300), so it can cover speed
  61          * mismatches in input and output ports.
  62          */
  63         u16 fifo_level;
  64
  65         /* Bps pr lane is (refclk_hz / pll_prd) * pll_fbd */
  66         u16 pll_prd;
  67         u16 pll_fbd;
  68
  69         /* CSI
  70          * Calculate CSI parameters with REF_02 for the highest resolution your
  71          * CSI interface can handle. The driver will adjust the number of CSI
  72          * lanes in use according to the pixel clock.
  73          *
  74          * The values in brackets are calculated with REF_02 when the number of
  75          * bps pr lane is 823.5 MHz, and can serve as a starting point.
  76          */
  77         u32 lineinitcnt;        /* (0x00001770) */
  78         u32 lptxtimecnt;        /* (0x00000005) */
  79         u32 tclk_headercnt;     /* (0x00001d04) */
  80         u32 tclk_trailcnt;      /* (0x00000000) */
  81         u32 ths_headercnt;      /* (0x00000505) */
  82         u32 twakeup;            /* (0x00004650) */
  83         u32 tclk_postcnt;       /* (0x00000000) */
  84         u32 ths_trailcnt;       /* (0x00000004) */
  85         u32 hstxvregcnt;        /* (0x00000005) */
  86
  87         /* DVI->HDMI detection delay to avoid unnecessary switching between DVI
  88          * and HDMI mode.
  89          * Sets HDMI_DET_V in register HDMI_DET.
  90          * Default: HDMI_MODE_DELAY_0_MS
  91          */
  92         enum tc358743_hdmi_detection_delay hdmi_detection_delay;
  93
  94         /* Reset PHY automatically when TMDS clock goes from DC to AC.
  95          * Sets PHY_AUTO_RST2 in register PHY_CTL2.
  96          * Default: false
  97          */
  98         bool hdmi_phy_auto_reset_tmds_detected;
  99
 100         /* Reset PHY automatically when TMDS clock passes 21 MHz.
 101          * Sets PHY_AUTO_RST3 in register PHY_CTL2.
 102          * Default: false
 103          */
 104         bool hdmi_phy_auto_reset_tmds_in_range;
 105
 106         /* Reset PHY automatically when TMDS clock is detected.
 107          * Sets PHY_AUTO_RST4 in register PHY_CTL2.
 108          * Default: false
 109          */
 110         bool hdmi_phy_auto_reset_tmds_valid;
 111
 112         /* Reset HDMI PHY automatically when hsync period is out of range.
 113          * Sets H_PI_RST in register HV_RST.
 114          * Default: false
 115          */
 116         bool hdmi_phy_auto_reset_hsync_out_of_range;
 117
 118         /* Reset HDMI PHY automatically when vsync period is out of range.
 119          * Sets V_PI_RST in register HV_RST.
 120          * Default: false
 121          */
 122         bool hdmi_phy_auto_reset_vsync_out_of_range;
 123 };
 124
 125 /* custom controls */
 126 /* Audio sample rate in Hz */
 127 #define TC358743_CID_AUDIO_SAMPLING_RATE (V4L2_CID_USER_TC358743_BASE + 0)
 128 /* Audio present status */
 129 #define TC358743_CID_AUDIO_PRESENT       (V4L2_CID_USER_TC358743_BASE + 1)
 130
 131 #endif