/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
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* Parts of this file were based on sources as follows:
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*
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* Copyright (C) 2006-2008 Intel Corporation
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* Copyright (C) 2007 Amos Lee <amos_lee@storlinksemi.com>
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* Copyright (C) 2007 Dave Airlie <airlied@linux.ie>
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* Copyright (C) 2011 Texas Instruments
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* Copyright (C) 2017 Eric Anholt
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*/
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#ifndef _TVE200_DRM_H_
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#define _TVE200_DRM_H_
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#include <linux/irqreturn.h>
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#include <drm/drm_simple_kms_helper.h>
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struct clk;
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struct drm_bridge;
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struct drm_connector;
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struct drm_device;
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struct drm_file;
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struct drm_mode_create_dumb;
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struct drm_panel;
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/* Bits 2-31 are valid physical base addresses */
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#define TVE200_Y_FRAME_BASE_ADDR 0x00
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#define TVE200_U_FRAME_BASE_ADDR 0x04
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#define TVE200_V_FRAME_BASE_ADDR 0x08
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#define TVE200_INT_EN 0x0C
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#define TVE200_INT_CLR 0x10
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#define TVE200_INT_STAT 0x14
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#define TVE200_INT_BUS_ERR BIT(7)
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#define TVE200_INT_V_STATUS BIT(6) /* vertical blank */
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#define TVE200_INT_V_NEXT_FRAME BIT(5)
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#define TVE200_INT_U_NEXT_FRAME BIT(4)
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#define TVE200_INT_Y_NEXT_FRAME BIT(3)
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#define TVE200_INT_V_FIFO_UNDERRUN BIT(2)
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#define TVE200_INT_U_FIFO_UNDERRUN BIT(1)
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#define TVE200_INT_Y_FIFO_UNDERRUN BIT(0)
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#define TVE200_FIFO_UNDERRUNS (TVE200_INT_V_FIFO_UNDERRUN | \
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TVE200_INT_U_FIFO_UNDERRUN | \
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TVE200_INT_Y_FIFO_UNDERRUN)
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#define TVE200_CTRL 0x18
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#define TVE200_CTRL_YUV420 BIT(31)
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#define TVE200_CTRL_CSMODE BIT(30)
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#define TVE200_CTRL_NONINTERLACE BIT(28) /* 0 = non-interlace CCIR656 */
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#define TVE200_CTRL_TVCLKP BIT(27) /* Inverted clock phase */
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/* Bits 24..26 define the burst size after arbitration on the bus */
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#define TVE200_CTRL_BURST_4_WORDS (0 << 24)
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#define TVE200_CTRL_BURST_8_WORDS (1 << 24)
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#define TVE200_CTRL_BURST_16_WORDS (2 << 24)
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#define TVE200_CTRL_BURST_32_WORDS (3 << 24)
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#define TVE200_CTRL_BURST_64_WORDS (4 << 24)
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#define TVE200_CTRL_BURST_128_WORDS (5 << 24)
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#define TVE200_CTRL_BURST_256_WORDS (6 << 24)
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#define TVE200_CTRL_BURST_0_WORDS (7 << 24) /* ? */
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/*
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* Bits 16..23 is the retry count*16 before issueing a new AHB transfer
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* on the AHB bus.
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*/
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#define TVE200_CTRL_RETRYCNT_MASK GENMASK(23, 16)
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#define TVE200_CTRL_RETRYCNT_16 (1 << 16)
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#define TVE200_CTRL_BBBP BIT(15) /* 0 = little-endian */
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/* Bits 12..14 define the YCbCr ordering */
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#define TVE200_CTRL_YCBCRODR_CB0Y0CR0Y1 (0 << 12)
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#define TVE200_CTRL_YCBCRODR_Y0CB0Y1CR0 (1 << 12)
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#define TVE200_CTRL_YCBCRODR_CR0Y0CB0Y1 (2 << 12)
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#define TVE200_CTRL_YCBCRODR_Y1CB0Y0CR0 (3 << 12)
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#define TVE200_CTRL_YCBCRODR_CR0Y1CB0Y0 (4 << 12)
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#define TVE200_CTRL_YCBCRODR_Y1CR0Y0CB0 (5 << 12)
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#define TVE200_CTRL_YCBCRODR_CB0Y1CR0Y0 (6 << 12)
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#define TVE200_CTRL_YCBCRODR_Y0CR0Y1CB0 (7 << 12)
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/* Bits 10..11 define the input resolution (framebuffer size) */
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#define TVE200_CTRL_IPRESOL_CIF (0 << 10)
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#define TVE200_CTRL_IPRESOL_VGA (1 << 10)
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#define TVE200_CTRL_IPRESOL_D1 (2 << 10)
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#define TVE200_CTRL_NTSC BIT(9) /* 0 = PAL, 1 = NTSC */
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#define TVE200_CTRL_INTERLACE BIT(8) /* 1 = interlace, only for D1 */
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#define TVE200_IPDMOD_RGB555 (0 << 6) /* TVE200_CTRL_YUV420 = 0 */
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#define TVE200_IPDMOD_RGB565 (1 << 6)
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#define TVE200_IPDMOD_RGB888 (2 << 6)
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#define TVE200_IPDMOD_YUV420 (2 << 6) /* TVE200_CTRL_YUV420 = 1 */
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#define TVE200_IPDMOD_YUV422 (3 << 6)
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/* Bits 4 & 5 define when to fire the vblank IRQ */
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#define TVE200_VSTSTYPE_VSYNC (0 << 4) /* start of vsync */
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#define TVE200_VSTSTYPE_VBP (1 << 4) /* start of v back porch */
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#define TVE200_VSTSTYPE_VAI (2 << 4) /* start of v active image */
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#define TVE200_VSTSTYPE_VFP (3 << 4) /* start of v front porch */
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#define TVE200_VSTSTYPE_BITS (BIT(4) | BIT(5))
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#define TVE200_BGR BIT(1) /* 0 = RGB, 1 = BGR */
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#define TVE200_TVEEN BIT(0) /* Enable TVE block */
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#define TVE200_CTRL_2 0x1c
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#define TVE200_CTRL_3 0x20
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#define TVE200_CTRL_4 0x24
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#define TVE200_CTRL_4_RESET BIT(0) /* triggers reset of TVE200 */
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struct tve200_drm_dev_private {
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struct drm_device *drm;
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struct drm_connector *connector;
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struct drm_panel *panel;
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struct drm_bridge *bridge;
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struct drm_simple_display_pipe pipe;
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void *regs;
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struct clk *pclk;
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struct clk *clk;
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};
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#define to_tve200_connector(x) \
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container_of(x, struct tve200_drm_connector, connector)
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int tve200_display_init(struct drm_device *dev);
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irqreturn_t tve200_irq(int irq, void *data);
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int tve200_connector_init(struct drm_device *dev);
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int tve200_encoder_init(struct drm_device *dev);
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int tve200_dumb_create(struct drm_file *file_priv,
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struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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#endif /* _TVE200_DRM_H_ */
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