1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * i.MX8QXP/i.MX8QM JPEG encoder/decoder v4l2 driver
4  *
5  * Copyright 2018-2019 NXP
6  */
7 
8 #ifndef _MXC_JPEG_HW_H
9 #define _MXC_JPEG_HW_H
10 
11 /* JPEG Decoder/Encoder Wrapper Register Map */
12 #define GLB_CTRL			0x0
13 #define COM_STATUS			0x4
14 #define BUF_BASE0			0x14
15 #define BUF_BASE1			0x18
16 #define LINE_PITCH			0x1C
17 #define STM_BUFBASE			0x20
18 #define STM_BUFSIZE			0x24
19 #define IMGSIZE				0x28
20 #define STM_CTRL			0x2C
21 
22 /* CAST JPEG-Decoder/Encoder Status Register Map (read-only)*/
23 #define CAST_STATUS0			0x100
24 #define CAST_STATUS1			0x104
25 #define CAST_STATUS2			0x108
26 #define CAST_STATUS3			0x10c
27 #define CAST_STATUS4			0x110
28 #define CAST_STATUS5			0x114
29 #define CAST_STATUS6			0x118
30 #define CAST_STATUS7			0x11c
31 #define CAST_STATUS8			0x120
32 #define CAST_STATUS9			0x124
33 #define CAST_STATUS10			0x128
34 #define CAST_STATUS11			0x12c
35 #define CAST_STATUS12			0x130
36 #define CAST_STATUS13			0x134
37 /* the following are for encoder only */
38 #define CAST_STATUS14		0x138
39 #define CAST_STATUS15		0x13c
40 #define CAST_STATUS16		0x140
41 #define CAST_STATUS17		0x144
42 #define CAST_STATUS18		0x148
43 #define CAST_STATUS19		0x14c
44 
45 /* CAST JPEG-Decoder Control Register Map (write-only) */
46 #define CAST_CTRL			CAST_STATUS13
47 
48 /* CAST JPEG-Encoder Control Register Map (write-only) */
49 #define CAST_MODE			CAST_STATUS0
50 #define CAST_CFG_MODE			CAST_STATUS1
51 #define CAST_QUALITY			CAST_STATUS2
52 #define CAST_RSVD			CAST_STATUS3
53 #define CAST_REC_REGS_SEL		CAST_STATUS4
54 #define CAST_LUMTH			CAST_STATUS5
55 #define CAST_CHRTH			CAST_STATUS6
56 #define CAST_NOMFRSIZE_LO		CAST_STATUS7
57 #define CAST_NOMFRSIZE_HI		CAST_STATUS8
58 #define CAST_OFBSIZE_LO			CAST_STATUS9
59 #define CAST_OFBSIZE_HI			CAST_STATUS10
60 
61 #define MXC_MAX_SLOTS	1 /* TODO use all 4 slots*/
62 /* JPEG-Decoder Wrapper Slot Registers 0..3 */
63 #define SLOT_BASE			0x10000
64 #define SLOT_STATUS			0x0
65 #define SLOT_IRQ_EN			0x4
66 #define SLOT_BUF_PTR			0x8
67 #define SLOT_CUR_DESCPT_PTR		0xC
68 #define SLOT_NXT_DESCPT_PTR		0x10
69 #define MXC_SLOT_OFFSET(slot, offset)	((SLOT_BASE * ((slot) + 1)) + (offset))
70 
71 /* GLB_CTRL fields */
72 #define GLB_CTRL_JPG_EN					0x1
73 #define GLB_CTRL_SFT_RST				(0x1 << 1)
74 #define GLB_CTRL_DEC_GO					(0x1 << 2)
75 #define GLB_CTRL_L_ENDIAN(le)				((le) << 3)
76 #define GLB_CTRL_SLOT_EN(slot)				(0x1 << ((slot) + 4))
77 
78 /* COM_STAUS fields */
79 #define COM_STATUS_DEC_ONGOING(r)		(((r) & (1 << 31)) >> 31)
80 #define COM_STATUS_CUR_SLOT(r)			(((r) & (0x3 << 29)) >> 29)
81 
82 /* STM_CTRL fields */
83 #define STM_CTRL_PIXEL_PRECISION		(0x1 << 2)
84 #define STM_CTRL_IMAGE_FORMAT(img_fmt)		((img_fmt) << 3)
85 #define STM_CTRL_IMAGE_FORMAT_MASK		(0xF << 3)
86 #define STM_CTRL_BITBUF_PTR_CLR(clr)		((clr) << 7)
87 #define STM_CTRL_AUTO_START(go)			((go) << 8)
88 #define STM_CTRL_CONFIG_MOD(mod)		((mod) << 9)
89 
90 /* SLOT_STATUS fields for slots 0..3 */
91 #define SLOT_STATUS_FRMDONE			(0x1 << 3)
92 #define SLOT_STATUS_ENC_CONFIG_ERR		(0x1 << 8)
93 
94 /* SLOT_IRQ_EN fields TBD */
95 
96 #define MXC_NXT_DESCPT_EN			0x1
97 #define MXC_DEC_EXIT_IDLE_MODE			0x4
98 
99 /* JPEG-Decoder Wrapper - STM_CTRL Register Fields */
100 #define MXC_PIXEL_PRECISION(precision) ((precision) / 8 << 2)
101 enum mxc_jpeg_image_format {
102 	MXC_JPEG_INVALID = -1,
103 	MXC_JPEG_YUV420 = 0x0, /* 2 Plannar, Y=1st plane UV=2nd plane */
104 	MXC_JPEG_YUV422 = 0x1, /* 1 Plannar, YUYV sequence */
105 	MXC_JPEG_RGB	= 0x2, /* RGBRGB packed format */
106 	MXC_JPEG_YUV444	= 0x3, /* 1 Plannar, YUVYUV sequence */
107 	MXC_JPEG_GRAY = 0x4, /* Y8 or Y12 or Single Component */
108 	MXC_JPEG_RESERVED = 0x5,
109 	MXC_JPEG_ARGB	= 0x6,
110 };
111 
112 #include "mxc-jpeg.h"
113 void print_descriptor_info(struct device *dev, struct mxc_jpeg_desc *desc);
114 void print_cast_status(struct device *dev, void __iomem *reg,
115 		       unsigned int mode);
116 void print_wrapper_info(struct device *dev, void __iomem *reg);
117 void mxc_jpeg_sw_reset(void __iomem *reg);
118 int mxc_jpeg_enable(void __iomem *reg);
119 void wait_frmdone(struct device *dev, void __iomem *reg);
120 void mxc_jpeg_enc_mode_conf(struct device *dev, void __iomem *reg);
121 void mxc_jpeg_enc_mode_go(struct device *dev, void __iomem *reg);
122 void mxc_jpeg_dec_mode_go(struct device *dev, void __iomem *reg);
123 int mxc_jpeg_get_slot(void __iomem *reg);
124 u32 mxc_jpeg_get_offset(void __iomem *reg, int slot);
125 void mxc_jpeg_enable_slot(void __iomem *reg, int slot);
126 void mxc_jpeg_set_l_endian(void __iomem *reg, int le);
127 void mxc_jpeg_enable_irq(void __iomem *reg, int slot);
128 int mxc_jpeg_set_input(void __iomem *reg, u32 in_buf, u32 bufsize);
129 int mxc_jpeg_set_output(void __iomem *reg, u16 out_pitch, u32 out_buf,
130 			u16 w, u16 h);
131 void mxc_jpeg_set_config_mode(void __iomem *reg, int config_mode);
132 int mxc_jpeg_set_params(struct mxc_jpeg_desc *desc,  u32 bufsize, u16
133 			out_pitch, u32 format);
134 void mxc_jpeg_set_bufsize(struct mxc_jpeg_desc *desc,  u32 bufsize);
135 void mxc_jpeg_set_res(struct mxc_jpeg_desc *desc, u16 w, u16 h);
136 void mxc_jpeg_set_line_pitch(struct mxc_jpeg_desc *desc, u32 line_pitch);
137 void mxc_jpeg_set_desc(u32 desc, void __iomem *reg, int slot);
138 void mxc_jpeg_set_regs_from_desc(struct mxc_jpeg_desc *desc,
139 				 void __iomem *reg);
140 #endif
141