cregit-Linux how code gets into the kernel

Release 4.17 drivers/gpu/drm/tve200/tve200_drm.h

/*
 * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
 * Parts of this file were based on sources as follows:
 *
 * Copyright (C) 2006-2008 Intel Corporation
 * Copyright (C) 2007 Amos Lee <amos_lee@storlinksemi.com>
 * Copyright (C) 2007 Dave Airlie <airlied@linux.ie>
 * Copyright (C) 2011 Texas Instruments
 * Copyright (C) 2017 Eric Anholt
 *
 * This program is free software and is provided to you under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation, and any use by you of this program is subject to the terms of
 * such GNU licence.
 */

#ifndef _TVE200_DRM_H_

#define _TVE200_DRM_H_

/* Bits 2-31 are valid physical base addresses */

#define TVE200_Y_FRAME_BASE_ADDR	0x00

#define TVE200_U_FRAME_BASE_ADDR	0x04

#define TVE200_V_FRAME_BASE_ADDR	0x08


#define TVE200_INT_EN			0x0C

#define TVE200_INT_CLR			0x10

#define TVE200_INT_STAT			0x14

#define TVE200_INT_BUS_ERR		BIT(7)

#define TVE200_INT_V_STATUS		BIT(6) 
/* vertical blank */

#define TVE200_INT_V_NEXT_FRAME		BIT(5)

#define TVE200_INT_U_NEXT_FRAME		BIT(4)

#define TVE200_INT_Y_NEXT_FRAME		BIT(3)

#define TVE200_INT_V_FIFO_UNDERRUN	BIT(2)

#define TVE200_INT_U_FIFO_UNDERRUN	BIT(1)

#define TVE200_INT_Y_FIFO_UNDERRUN	BIT(0)

#define TVE200_FIFO_UNDERRUNS		(TVE200_INT_V_FIFO_UNDERRUN | \
                                         TVE200_INT_U_FIFO_UNDERRUN | \
                                         TVE200_INT_Y_FIFO_UNDERRUN)


#define TVE200_CTRL			0x18

#define TVE200_CTRL_YUV420		BIT(31)

#define TVE200_CTRL_CSMODE		BIT(30)

#define TVE200_CTRL_NONINTERLACE	BIT(28) 
/* 0 = non-interlace CCIR656 */

#define TVE200_CTRL_TVCLKP		BIT(27) 
/* Inverted clock phase */
/* Bits 24..26 define the burst size after arbitration on the bus */

#define TVE200_CTRL_BURST_4_WORDS	(0 << 24)

#define TVE200_CTRL_BURST_8_WORDS	(1 << 24)

#define TVE200_CTRL_BURST_16_WORDS	(2 << 24)

#define TVE200_CTRL_BURST_32_WORDS	(3 << 24)

#define TVE200_CTRL_BURST_64_WORDS	(4 << 24)

#define TVE200_CTRL_BURST_128_WORDS	(5 << 24)

#define TVE200_CTRL_BURST_256_WORDS	(6 << 24)

#define TVE200_CTRL_BURST_0_WORDS	(7 << 24) 
/* ? */
/*
 * Bits 16..23 is the retry count*16 before issueing a new AHB transfer
 * on the AHB bus.
 */

#define TVE200_CTRL_RETRYCNT_MASK	GENMASK(23, 16)

#define TVE200_CTRL_RETRYCNT_16		(1 << 16)

#define TVE200_CTRL_BBBP		BIT(15) 
/* 0 = little-endian */
/* Bits 12..14 define the YCbCr ordering */

#define TVE200_CTRL_YCBCRODR_CB0Y0CR0Y1	(0 << 12)

#define TVE200_CTRL_YCBCRODR_Y0CB0Y1CR0	(1 << 12)

#define TVE200_CTRL_YCBCRODR_CR0Y0CB0Y1	(2 << 12)

#define TVE200_CTRL_YCBCRODR_Y1CB0Y0CR0	(3 << 12)

#define TVE200_CTRL_YCBCRODR_CR0Y1CB0Y0	(4 << 12)

#define TVE200_CTRL_YCBCRODR_Y1CR0Y0CB0	(5 << 12)

#define TVE200_CTRL_YCBCRODR_CB0Y1CR0Y0	(6 << 12)

#define TVE200_CTRL_YCBCRODR_Y0CR0Y1CB0	(7 << 12)
/* Bits 10..11 define the input resolution (framebuffer size) */

#define TVE200_CTRL_IPRESOL_CIF		(0 << 10)

#define TVE200_CTRL_IPRESOL_VGA		(1 << 10)

#define TVE200_CTRL_IPRESOL_D1		(2 << 10)

#define TVE200_CTRL_NTSC		BIT(9) 
/* 0 = PAL, 1 = NTSC */

#define TVE200_CTRL_INTERLACE		BIT(8) 
/* 1 = interlace, only for D1 */

#define TVE200_IPDMOD_RGB555		(0 << 6) 
/* TVE200_CTRL_YUV420 = 0 */

#define TVE200_IPDMOD_RGB565		(1 << 6)

#define TVE200_IPDMOD_RGB888		(2 << 6)

#define TVE200_IPDMOD_YUV420		(2 << 6) 
/* TVE200_CTRL_YUV420 = 1 */

#define TVE200_IPDMOD_YUV422		(3 << 6)
/* Bits 4 & 5 define when to fire the vblank IRQ */

#define TVE200_VSTSTYPE_VSYNC		(0 << 4) 
/* start of vsync */

#define TVE200_VSTSTYPE_VBP		(1 << 4) 
/* start of v back porch */

#define TVE200_VSTSTYPE_VAI		(2 << 4) 
/* start of v active image */

#define TVE200_VSTSTYPE_VFP		(3 << 4) 
/* start of v front porch */

#define TVE200_VSTSTYPE_BITS		(BIT(4) | BIT(5))

#define TVE200_BGR			BIT(1) 
/* 0 = RGB, 1 = BGR */

#define TVE200_TVEEN			BIT(0) 
/* Enable TVE block */


#define TVE200_CTRL_2			0x1c

#define TVE200_CTRL_3			0x20


#define TVE200_CTRL_4			0x24

#define TVE200_CTRL_4_RESET		BIT(0) 
/* triggers reset of TVE200 */

#include <drm/drm_gem.h>
#include <drm/drm_simple_kms_helper.h>


struct tve200_drm_dev_private {
	
struct drm_device *drm;

	
struct drm_connector *connector;
	
struct drm_panel *panel;
	
struct drm_bridge *bridge;
	
struct drm_simple_display_pipe pipe;

	
void *regs;
	
struct clk *pclk;
	
struct clk *clk;
};


#define to_tve200_connector(x) \
	container_of(x, struct tve200_drm_connector, connector)

int tve200_display_init(struct drm_device *dev);
irqreturn_t tve200_irq(int irq, void *data);
int tve200_connector_init(struct drm_device *dev);
int tve200_encoder_init(struct drm_device *dev);
int tve200_dumb_create(struct drm_file *file_priv,
		      struct drm_device *dev,
		      struct drm_mode_create_dumb *args);

#endif /* _TVE200_DRM_H_ */

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