diff options
Diffstat (limited to 'drivers/gpu/drm/tve200/tve200_drm.h')
| -rw-r--r-- | drivers/gpu/drm/tve200/tve200_drm.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tve200/tve200_drm.h b/drivers/gpu/drm/tve200/tve200_drm.h new file mode 100644 index 000000000..5420b52ea --- /dev/null +++ b/drivers/gpu/drm/tve200/tve200_drm.h @@ -0,0 +1,128 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * 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 + */ + +#ifndef _TVE200_DRM_H_ +#define _TVE200_DRM_H_ + +#include <linux/irqreturn.h> + +#include <drm/drm_simple_kms_helper.h> + +struct clk; +struct drm_bridge; +struct drm_connector; +struct drm_device; +struct drm_file; +struct drm_mode_create_dumb; +struct drm_panel; + +/* 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 */ + +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_ */ |