tegrakernel/kernel/nvidia/include/media/i2c/tc358840.h

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2022-02-16 09:13:02 -06:00
/*
* tc358840.h - Toshiba UH2C/D HDMI-CSI bridge driver
*
* Copyright (c) 2015, Armin Weiss <weii@zhaw.ch>
* Copyright (c) 2016 - 2018, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TC358840_
#define _TC358840_
enum tc358840_csi_port {
CSI_TX_NONE = 0,
CSI_TX_0,
CSI_TX_1,
CSI_TX_BOTH
};
enum tc358840_clock_mode {
CSI_NON_CONT_CLK = 0,
CSI_CONT_CLK
};
enum tc358840_ddc5v_delays {
DDC5V_DELAY_0MS,
DDC5V_DELAY_50MS,
DDC5V_DELAY_100MS,
DDC5V_DELAY_200MS,
DDC5V_DELAY_MAX = DDC5V_DELAY_200MS,
};
struct tc358840_platform_data {
/* GPIOs */
int reset_gpio; /* Pin K8 */
#ifdef CONFIG_V4L2_FWNODE
struct v4l2_fwnode_endpoint endpoint;
#else
struct v4l2_of_endpoint endpoint;
#endif
/* System clock connected to REFCLK (pin K9) */
u32 refclk_hz; /* 40 - 50 MHz */
/* DDC +5V debounce delay */
enum tc358840_ddc5v_delays ddc5v_delay;
/* HDCP */
/* TODO: Not yet implemented */
bool enable_hdcp;
/* CSI Output */
enum tc358840_csi_port csi_port;
/* CSI */
/* The values in brackets can serve as a starting point. */
u32 lineinitcnt; /* (0x00000FA0) */
u32 lptxtimecnt; /* (0x00000004) */
u32 tclk_headercnt; /* (0x00180203) */
u32 tclk_trailcnt; /* (0x00040005) */
u32 ths_headercnt; /* (0x000D0004) */
u32 twakeup; /* (0x00003E80) */
u32 tclk_postcnt; /* (0x0000000A) */
u32 ths_trailcnt; /* (0x00080006) */
u32 hstxvregcnt; /* (0x00000020) */
/* PLL */
/* Bps pr lane is (refclk_hz / pll_prd) * pll_fbd */
u16 pll_prd; /* PRD from Macro + 1 (0x0A) */
u16 pll_fbd; /* FBD from Macro + 1 (0x7D) */
};
/* custom controls */
#define TEGRA_CAMERA_CID_USER_TC358840_BASE (TEGRA_CAMERA_CID_BASE + 0x1000)
/* Audio sample rate in Hz */
#define TC358840_CID_AUDIO_SAMPLING_RATE \
(TEGRA_CAMERA_CID_USER_TC358840_BASE + 1)
/* Audio present status */
#define TC358840_CID_AUDIO_PRESENT \
(TEGRA_CAMERA_CID_USER_TC358840_BASE + 2)
/* Splitter width */
#define TC358840_CID_SPLITTER_WIDTH \
(TEGRA_CAMERA_CID_USER_TC358840_BASE + 3)
#endif /* _TC358840_ */