drivers/gpu/drm/ast/ast_drv.h - linux - Git at Google

 /*
  * Copyright 2012 Red Hat Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sub license, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
  *
  */
 /*
  * Authors: Dave Airlie <airlied@redhat.com>
  */
 #ifndef __AST_DRV_H__
 #define __AST_DRV_H__

 #include <linux/types.h>
 #include <linux/io.h>
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>

 #include <drm/drm_connector.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_mode.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_fb_helper.h>

 #define DRIVER_AUTHOR		"Dave Airlie"

 #define DRIVER_NAME		"ast"
 #define DRIVER_DESC		"AST"
 #define DRIVER_DATE		"20120228"

 #define DRIVER_MAJOR		0
 #define DRIVER_MINOR		1
 #define DRIVER_PATCHLEVEL	0

 #define PCI_CHIP_AST2000 0x2000
 #define PCI_CHIP_AST2100 0x2010
 #define PCI_CHIP_AST1180 0x1180


 enum ast_chip {
 	AST2000,
 	AST2100,
 	AST1100,
 	AST2200,
 	AST2150,
 	AST2300,
 	AST2400,
 	AST2500,
 	AST1180,
 };

 enum ast_tx_chip {
 	AST_TX_NONE,
 	AST_TX_SIL164,
 	AST_TX_ITE66121,
 	AST_TX_DP501,
 };

 #define AST_DRAM_512Mx16 0
 #define AST_DRAM_1Gx16   1
 #define AST_DRAM_512Mx32 2
 #define AST_DRAM_1Gx32   3
 #define AST_DRAM_2Gx16   6
 #define AST_DRAM_4Gx16   7
 #define AST_DRAM_8Gx16   8


 #define AST_MAX_HWC_WIDTH	64
 #define AST_MAX_HWC_HEIGHT	64

 #define AST_HWC_SIZE		(AST_MAX_HWC_WIDTH * AST_MAX_HWC_HEIGHT * 2)
 #define AST_HWC_SIGNATURE_SIZE	32

 #define AST_DEFAULT_HWC_NUM	2

 /* define for signature structure */
 #define AST_HWC_SIGNATURE_CHECKSUM	0x00
 #define AST_HWC_SIGNATURE_SizeX		0x04
 #define AST_HWC_SIGNATURE_SizeY		0x08
 #define AST_HWC_SIGNATURE_X		0x0C
 #define AST_HWC_SIGNATURE_Y		0x10
 #define AST_HWC_SIGNATURE_HOTSPOTX	0x14
 #define AST_HWC_SIGNATURE_HOTSPOTY	0x18


 struct ast_private {
 	struct drm_device *dev;

 	void __iomem *regs;
 	void __iomem *ioregs;

 	enum ast_chip chip;
 	bool vga2_clone;
 	uint32_t dram_bus_width;
 	uint32_t dram_type;
 	uint32_t mclk;
 	uint32_t vram_size;

 	int fb_mtrr;

 	struct {
 		struct drm_gem_vram_object *gbo[AST_DEFAULT_HWC_NUM];
 		unsigned int next_index;
 	} cursor;

 	struct drm_plane primary_plane;
 	struct drm_plane cursor_plane;

 	bool support_wide_screen;
 	enum {
 		ast_use_p2a,
 		ast_use_dt,
 		ast_use_defaults
 	} config_mode;

 	enum ast_tx_chip tx_chip_type;
 	u8 dp501_maxclk;
 	u8 *dp501_fw_addr;
 	const struct firmware *dp501_fw;	/* dp501 fw */
 };

 int ast_driver_load(struct drm_device *dev, unsigned long flags);
 void ast_driver_unload(struct drm_device *dev);

 #define AST_IO_AR_PORT_WRITE		(0x40)
 #define AST_IO_MISC_PORT_WRITE		(0x42)
 #define AST_IO_VGA_ENABLE_PORT		(0x43)
 #define AST_IO_SEQ_PORT			(0x44)
 #define AST_IO_DAC_INDEX_READ		(0x47)
 #define AST_IO_DAC_INDEX_WRITE		(0x48)
 #define AST_IO_DAC_DATA		        (0x49)
 #define AST_IO_GR_PORT			(0x4E)
 #define AST_IO_CRTC_PORT		(0x54)
 #define AST_IO_INPUT_STATUS1_READ	(0x5A)
 #define AST_IO_MISC_PORT_READ		(0x4C)

 #define AST_IO_MM_OFFSET		(0x380)

 #define __ast_read(x) \
 static inline u##x ast_read##x(struct ast_private *ast, u32 reg) { \
 u##x val = 0;\
 val = ioread##x(ast->regs + reg); \
 return val;\
 }

 __ast_read(8);
 __ast_read(16);
 __ast_read(32)

 #define __ast_io_read(x) \
 static inline u##x ast_io_read##x(struct ast_private *ast, u32 reg) { \
 u##x val = 0;\
 val = ioread##x(ast->ioregs + reg); \
 return val;\
 }

 __ast_io_read(8);
 __ast_io_read(16);
 __ast_io_read(32);

 #define __ast_write(x) \
 static inline void ast_write##x(struct ast_private *ast, u32 reg, u##x val) {\
 	iowrite##x(val, ast->regs + reg);\
 	}

 __ast_write(8);
 __ast_write(16);
 __ast_write(32);

 #define __ast_io_write(x) \
 static inline void ast_io_write##x(struct ast_private *ast, u32 reg, u##x val) {\
 	iowrite##x(val, ast->ioregs + reg);\
 	}

 __ast_io_write(8);
 __ast_io_write(16);
 #undef __ast_io_write

 static inline void ast_set_index_reg(struct ast_private *ast,
 				     uint32_t base, uint8_t index,
 				     uint8_t val)
 {
 	ast_io_write16(ast, base, ((u16)val << 8) | index);
 }

 void ast_set_index_reg_mask(struct ast_private *ast,
 			    uint32_t base, uint8_t index,
 			    uint8_t mask, uint8_t val);
 uint8_t ast_get_index_reg(struct ast_private *ast,
 			  uint32_t base, uint8_t index);
 uint8_t ast_get_index_reg_mask(struct ast_private *ast,
 			       uint32_t base, uint8_t index, uint8_t mask);

 static inline void ast_open_key(struct ast_private *ast)
 {
 	ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8);
 }

 #define AST_VIDMEM_SIZE_8M    0x00800000
 #define AST_VIDMEM_SIZE_16M   0x01000000
 #define AST_VIDMEM_SIZE_32M   0x02000000
 #define AST_VIDMEM_SIZE_64M   0x04000000
 #define AST_VIDMEM_SIZE_128M  0x08000000

 #define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M

 struct ast_i2c_chan {
 	struct i2c_adapter adapter;
 	struct drm_device *dev;
 	struct i2c_algo_bit_data bit;
 };

 struct ast_connector {
 	struct drm_connector base;
 	struct ast_i2c_chan *i2c;
 };

 struct ast_crtc {
 	struct drm_crtc base;
 	u8 offset_x, offset_y;
 };

 struct ast_encoder {
 	struct drm_encoder base;
 };

 #define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
 #define to_ast_connector(x) container_of(x, struct ast_connector, base)
 #define to_ast_encoder(x) container_of(x, struct ast_encoder, base)

 struct ast_vbios_stdtable {
 	u8 misc;
 	u8 seq[4];
 	u8 crtc[25];
 	u8 ar[20];
 	u8 gr[9];
 };

 struct ast_vbios_enhtable {
 	u32 ht;
 	u32 hde;
 	u32 hfp;
 	u32 hsync;
 	u32 vt;
 	u32 vde;
 	u32 vfp;
 	u32 vsync;
 	u32 dclk_index;
 	u32 flags;
 	u32 refresh_rate;
 	u32 refresh_rate_index;
 	u32 mode_id;
 };

 struct ast_vbios_dclk_info {
 	u8 param1;
 	u8 param2;
 	u8 param3;
 };

 struct ast_vbios_mode_info {
 	const struct ast_vbios_stdtable *std_table;
 	const struct ast_vbios_enhtable *enh_table;
 };

 struct ast_crtc_state {
 	struct drm_crtc_state base;

 	/* Last known format of primary plane */
 	const struct drm_format_info *format;

 	struct ast_vbios_mode_info vbios_mode_info;
 };

 #define to_ast_crtc_state(state) container_of(state, struct ast_crtc_state, base)

 extern int ast_mode_init(struct drm_device *dev);
 extern void ast_mode_fini(struct drm_device *dev);

 #define AST_MM_ALIGN_SHIFT 4
 #define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)

 int ast_mm_init(struct ast_private *ast);
 void ast_mm_fini(struct ast_private *ast);

 /* ast post */
 void ast_enable_vga(struct drm_device *dev);
 void ast_enable_mmio(struct drm_device *dev);
 bool ast_is_vga_enabled(struct drm_device *dev);
 void ast_post_gpu(struct drm_device *dev);
 u32 ast_mindwm(struct ast_private *ast, u32 r);
 void ast_moutdwm(struct ast_private *ast, u32 r, u32 v);
 /* ast dp501 */
 void ast_set_dp501_video_output(struct drm_device *dev, u8 mode);
 bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size);
 bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata);
 u8 ast_get_dp501_max_clk(struct drm_device *dev);
 void ast_init_3rdtx(struct drm_device *dev);
 void ast_release_firmware(struct drm_device *dev);
 #endif
	/*
	* Copyright 2012 Red Hat Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the
	* "Software"), to deal in the Software without restriction, including
	* without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sub license, and/or sell copies of the Software, and to
	* permit persons to whom the Software is furnished to do so, subject to
	* the following conditions:
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	*
	* The above copyright notice and this permission notice (including the
	* next paragraph) shall be included in all copies or substantial portions
	* of the Software.
	*
	*/
	/*
	* Authors: Dave Airlie <airlied@redhat.com>
	*/
	#ifndef __AST_DRV_H__
	#define __AST_DRV_H__

	#include <linux/types.h>
	#include <linux/io.h>
	#include <linux/i2c.h>
	#include <linux/i2c-algo-bit.h>

	#include <drm/drm_connector.h>
	#include <drm/drm_crtc.h>
	#include <drm/drm_encoder.h>
	#include <drm/drm_mode.h>
	#include <drm/drm_framebuffer.h>
	#include <drm/drm_fb_helper.h>

	#define DRIVER_AUTHOR "Dave Airlie"

	#define DRIVER_NAME "ast"
	#define DRIVER_DESC "AST"
	#define DRIVER_DATE "20120228"

	#define DRIVER_MAJOR 0
	#define DRIVER_MINOR 1
	#define DRIVER_PATCHLEVEL 0

	#define PCI_CHIP_AST2000 0x2000
	#define PCI_CHIP_AST2100 0x2010
	#define PCI_CHIP_AST1180 0x1180


	enum ast_chip {
	AST2000,
	AST2100,
	AST1100,
	AST2200,
	AST2150,
	AST2300,
	AST2400,
	AST2500,
	AST1180,
	};

	enum ast_tx_chip {
	AST_TX_NONE,
	AST_TX_SIL164,
	AST_TX_ITE66121,
	AST_TX_DP501,
	};

	#define AST_DRAM_512Mx16 0
	#define AST_DRAM_1Gx16 1
	#define AST_DRAM_512Mx32 2
	#define AST_DRAM_1Gx32 3
	#define AST_DRAM_2Gx16 6
	#define AST_DRAM_4Gx16 7
	#define AST_DRAM_8Gx16 8


	#define AST_MAX_HWC_WIDTH 64
	#define AST_MAX_HWC_HEIGHT 64

	#define AST_HWC_SIZE (AST_MAX_HWC_WIDTH * AST_MAX_HWC_HEIGHT * 2)
	#define AST_HWC_SIGNATURE_SIZE 32

	#define AST_DEFAULT_HWC_NUM 2

	/* define for signature structure */
	#define AST_HWC_SIGNATURE_CHECKSUM 0x00
	#define AST_HWC_SIGNATURE_SizeX 0x04
	#define AST_HWC_SIGNATURE_SizeY 0x08
	#define AST_HWC_SIGNATURE_X 0x0C
	#define AST_HWC_SIGNATURE_Y 0x10
	#define AST_HWC_SIGNATURE_HOTSPOTX 0x14
	#define AST_HWC_SIGNATURE_HOTSPOTY 0x18


	struct ast_private {
	struct drm_device *dev;

	void __iomem *regs;
	void __iomem *ioregs;

	enum ast_chip chip;
	bool vga2_clone;
	uint32_t dram_bus_width;
	uint32_t dram_type;
	uint32_t mclk;
	uint32_t vram_size;

	int fb_mtrr;

	struct {
	struct drm_gem_vram_object *gbo[AST_DEFAULT_HWC_NUM];
	unsigned int next_index;
	} cursor;

	struct drm_plane primary_plane;
	struct drm_plane cursor_plane;

	bool support_wide_screen;
	enum {
	ast_use_p2a,
	ast_use_dt,
	ast_use_defaults
	} config_mode;

	enum ast_tx_chip tx_chip_type;
	u8 dp501_maxclk;
	u8 *dp501_fw_addr;
	const struct firmware dp501_fw; / dp501 fw */
	};

	int ast_driver_load(struct drm_device *dev, unsigned long flags);
	void ast_driver_unload(struct drm_device *dev);

	#define AST_IO_AR_PORT_WRITE (0x40)
	#define AST_IO_MISC_PORT_WRITE (0x42)
	#define AST_IO_VGA_ENABLE_PORT (0x43)
	#define AST_IO_SEQ_PORT (0x44)
	#define AST_IO_DAC_INDEX_READ (0x47)
	#define AST_IO_DAC_INDEX_WRITE (0x48)
	#define AST_IO_DAC_DATA (0x49)
	#define AST_IO_GR_PORT (0x4E)
	#define AST_IO_CRTC_PORT (0x54)
	#define AST_IO_INPUT_STATUS1_READ (0x5A)
	#define AST_IO_MISC_PORT_READ (0x4C)

	#define AST_IO_MM_OFFSET (0x380)

	#define __ast_read(x) \
	static inline u##x ast_read##x(struct ast_private *ast, u32 reg) { \
	u##x val = 0;\
	val = ioread##x(ast->regs + reg); \
	return val;\
	}

	__ast_read(8);
	__ast_read(16);
	__ast_read(32)

	#define __ast_io_read(x) \
	static inline u##x ast_io_read##x(struct ast_private *ast, u32 reg) { \
	u##x val = 0;\
	val = ioread##x(ast->ioregs + reg); \
	return val;\
	}

	__ast_io_read(8);
	__ast_io_read(16);
	__ast_io_read(32);

	#define __ast_write(x) \
	static inline void ast_write##x(struct ast_private *ast, u32 reg, u##x val) {\
	iowrite##x(val, ast->regs + reg);\
	}

	__ast_write(8);
	__ast_write(16);
	__ast_write(32);

	#define __ast_io_write(x) \
	static inline void ast_io_write##x(struct ast_private *ast, u32 reg, u##x val) {\
	iowrite##x(val, ast->ioregs + reg);\
	}

	__ast_io_write(8);
	__ast_io_write(16);
	#undef __ast_io_write

	static inline void ast_set_index_reg(struct ast_private *ast,
	uint32_t base, uint8_t index,
	uint8_t val)
	{
	ast_io_write16(ast, base, ((u16)val << 8) \| index);
	}

	void ast_set_index_reg_mask(struct ast_private *ast,
	uint32_t base, uint8_t index,
	uint8_t mask, uint8_t val);
	uint8_t ast_get_index_reg(struct ast_private *ast,
	uint32_t base, uint8_t index);
	uint8_t ast_get_index_reg_mask(struct ast_private *ast,
	uint32_t base, uint8_t index, uint8_t mask);

	static inline void ast_open_key(struct ast_private *ast)
	{
	ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8);
	}

	#define AST_VIDMEM_SIZE_8M 0x00800000
	#define AST_VIDMEM_SIZE_16M 0x01000000
	#define AST_VIDMEM_SIZE_32M 0x02000000
	#define AST_VIDMEM_SIZE_64M 0x04000000
	#define AST_VIDMEM_SIZE_128M 0x08000000

	#define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M

	struct ast_i2c_chan {
	struct i2c_adapter adapter;
	struct drm_device *dev;
	struct i2c_algo_bit_data bit;
	};

	struct ast_connector {
	struct drm_connector base;
	struct ast_i2c_chan *i2c;
	};

	struct ast_crtc {
	struct drm_crtc base;
	u8 offset_x, offset_y;
	};

	struct ast_encoder {
	struct drm_encoder base;
	};

	#define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
	#define to_ast_connector(x) container_of(x, struct ast_connector, base)
	#define to_ast_encoder(x) container_of(x, struct ast_encoder, base)

	struct ast_vbios_stdtable {
	u8 misc;
	u8 seq[4];
	u8 crtc[25];
	u8 ar[20];
	u8 gr[9];
	};

	struct ast_vbios_enhtable {
	u32 ht;
	u32 hde;
	u32 hfp;
	u32 hsync;
	u32 vt;
	u32 vde;
	u32 vfp;
	u32 vsync;
	u32 dclk_index;
	u32 flags;
	u32 refresh_rate;
	u32 refresh_rate_index;
	u32 mode_id;
	};

	struct ast_vbios_dclk_info {
	u8 param1;
	u8 param2;
	u8 param3;
	};

	struct ast_vbios_mode_info {
	const struct ast_vbios_stdtable *std_table;
	const struct ast_vbios_enhtable *enh_table;
	};

	struct ast_crtc_state {
	struct drm_crtc_state base;

	/* Last known format of primary plane */
	const struct drm_format_info *format;

	struct ast_vbios_mode_info vbios_mode_info;
	};

	#define to_ast_crtc_state(state) container_of(state, struct ast_crtc_state, base)

	extern int ast_mode_init(struct drm_device *dev);
	extern void ast_mode_fini(struct drm_device *dev);

	#define AST_MM_ALIGN_SHIFT 4
	#define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)

	int ast_mm_init(struct ast_private *ast);
	void ast_mm_fini(struct ast_private *ast);

	/* ast post */
	void ast_enable_vga(struct drm_device *dev);
	void ast_enable_mmio(struct drm_device *dev);
	bool ast_is_vga_enabled(struct drm_device *dev);
	void ast_post_gpu(struct drm_device *dev);
	u32 ast_mindwm(struct ast_private *ast, u32 r);
	void ast_moutdwm(struct ast_private *ast, u32 r, u32 v);
	/* ast dp501 */
	void ast_set_dp501_video_output(struct drm_device *dev, u8 mode);
	bool ast_backup_fw(struct drm_device dev, u8 addr, u32 size);
	bool ast_dp501_read_edid(struct drm_device dev, u8 ediddata);
	u8 ast_get_dp501_max_clk(struct drm_device *dev);
	void ast_init_3rdtx(struct drm_device *dev);
	void ast_release_firmware(struct drm_device *dev);
	#endif