1 /* SPDX-License-Identifier: GPL-2.0 */
2 
3 /*
4  * em28xx-reg.h - Register definitions for em28xx driver
5  */
6 
7 #define EM_GPIO_0  ((unsigned char)BIT(0))
8 #define EM_GPIO_1  ((unsigned char)BIT(1))
9 #define EM_GPIO_2  ((unsigned char)BIT(2))
10 #define EM_GPIO_3  ((unsigned char)BIT(3))
11 #define EM_GPIO_4  ((unsigned char)BIT(4))
12 #define EM_GPIO_5  ((unsigned char)BIT(5))
13 #define EM_GPIO_6  ((unsigned char)BIT(6))
14 #define EM_GPIO_7  ((unsigned char)BIT(7))
15 
16 #define EM_GPO_0   ((unsigned char)BIT(0))
17 #define EM_GPO_1   ((unsigned char)BIT(1))
18 #define EM_GPO_2   ((unsigned char)BIT(2))
19 #define EM_GPO_3   ((unsigned char)BIT(3))
20 
21 /* em28xx endpoints */
22 /* 0x82:   (always ?) analog */
23 #define EM28XX_EP_AUDIO		0x83
24 /* 0x84:   digital or analog */
25 
26 /* em2800 registers */
27 #define EM2800_R08_AUDIOSRC 0x08
28 
29 /* em28xx registers */
30 
31 #define EM28XX_R00_CHIPCFG	0x00
32 
33 /* em28xx Chip Configuration 0x00 */
34 #define EM2860_CHIPCFG_VENDOR_AUDIO		0x80
35 #define EM2860_CHIPCFG_I2S_VOLUME_CAPABLE	0x40
36 #define EM2820_CHIPCFG_I2S_3_SAMPRATES		0x30
37 #define EM2860_CHIPCFG_I2S_5_SAMPRATES		0x30
38 #define EM2820_CHIPCFG_I2S_1_SAMPRATE		0x20
39 #define EM2860_CHIPCFG_I2S_3_SAMPRATES		0x20
40 #define EM28XX_CHIPCFG_AC97			0x10
41 #define EM28XX_CHIPCFG_AUDIOMASK		0x30
42 
43 #define EM28XX_R01_CHIPCFG2	0x01
44 
45 /* em28xx Chip Configuration 2 0x01 */
46 #define EM28XX_CHIPCFG2_TS_PRESENT		0x10
47 #define EM28XX_CHIPCFG2_TS_REQ_INTERVAL_MASK	0x0c /* bits 3-2 */
48 #define EM28XX_CHIPCFG2_TS_REQ_INTERVAL_1MF	0x00
49 #define EM28XX_CHIPCFG2_TS_REQ_INTERVAL_2MF	0x04
50 #define EM28XX_CHIPCFG2_TS_REQ_INTERVAL_4MF	0x08
51 #define EM28XX_CHIPCFG2_TS_REQ_INTERVAL_8MF	0x0c
52 #define EM28XX_CHIPCFG2_TS_PACKETSIZE_MASK	0x03 /* bits 0-1 */
53 #define EM28XX_CHIPCFG2_TS_PACKETSIZE_188	0x00
54 #define EM28XX_CHIPCFG2_TS_PACKETSIZE_376	0x01
55 #define EM28XX_CHIPCFG2_TS_PACKETSIZE_564	0x02
56 #define EM28XX_CHIPCFG2_TS_PACKETSIZE_752	0x03
57 
58 /* GPIO/GPO registers */
59 #define EM2880_R04_GPO		0x04    /* em2880-em2883 only */
60 #define EM2820_R08_GPIO_CTRL	0x08	/* em2820-em2873/83 only */
61 #define EM2820_R09_GPIO_STATE	0x09	/* em2820-em2873/83 only */
62 
63 #define EM28XX_R06_I2C_CLK	0x06
64 
65 /* em28xx I2C Clock Register (0x06) */
66 #define EM28XX_I2C_CLK_ACK_LAST_READ	0x80
67 #define EM28XX_I2C_CLK_WAIT_ENABLE	0x40
68 #define EM28XX_I2C_EEPROM_ON_BOARD	0x08
69 #define EM28XX_I2C_EEPROM_KEY_VALID	0x04
70 #define EM2874_I2C_SECONDARY_BUS_SELECT	0x04 /* em2874 has two i2c buses */
71 #define EM28XX_I2C_FREQ_1_5_MHZ		0x03 /* bus frequency (bits [1-0]) */
72 #define EM28XX_I2C_FREQ_25_KHZ		0x02
73 #define EM28XX_I2C_FREQ_400_KHZ		0x01
74 #define EM28XX_I2C_FREQ_100_KHZ		0x00
75 
76 #define EM28XX_R0A_CHIPID	0x0a
77 #define EM28XX_R0C_USBSUSP	0x0c
78 #define   EM28XX_R0C_USBSUSP_SNAPSHOT	0x20 /* 1=button pressed, needs reset */
79 
80 #define EM28XX_R0E_AUDIOSRC	0x0e
81 #define EM28XX_R0F_XCLK	0x0f
82 
83 /* em28xx XCLK Register (0x0f) */
84 #define EM28XX_XCLK_AUDIO_UNMUTE	0x80 /* otherwise audio muted */
85 #define EM28XX_XCLK_I2S_MSB_TIMING	0x40 /* otherwise standard timing */
86 #define EM28XX_XCLK_IR_RC5_MODE		0x20 /* otherwise NEC mode */
87 #define EM28XX_XCLK_IR_NEC_CHK_PARITY	0x10
88 #define EM28XX_XCLK_FREQUENCY_30MHZ	0x00 /* Freq. select (bits [3-0]) */
89 #define EM28XX_XCLK_FREQUENCY_15MHZ	0x01
90 #define EM28XX_XCLK_FREQUENCY_10MHZ	0x02
91 #define EM28XX_XCLK_FREQUENCY_7_5MHZ	0x03
92 #define EM28XX_XCLK_FREQUENCY_6MHZ	0x04
93 #define EM28XX_XCLK_FREQUENCY_5MHZ	0x05
94 #define EM28XX_XCLK_FREQUENCY_4_3MHZ	0x06
95 #define EM28XX_XCLK_FREQUENCY_12MHZ	0x07
96 #define EM28XX_XCLK_FREQUENCY_20MHZ	0x08
97 #define EM28XX_XCLK_FREQUENCY_20MHZ_2	0x09
98 #define EM28XX_XCLK_FREQUENCY_48MHZ	0x0a
99 #define EM28XX_XCLK_FREQUENCY_24MHZ	0x0b
100 
101 #define EM28XX_R10_VINMODE	0x10
102 	  /* used by all non-camera devices: */
103 #define   EM28XX_VINMODE_YUV422_CbYCrY  0x10
104 	  /* used by camera devices: */
105 #define   EM28XX_VINMODE_YUV422_YUYV    0x08
106 #define   EM28XX_VINMODE_YUV422_YVYU    0x09
107 #define   EM28XX_VINMODE_YUV422_UYVY    0x0a
108 #define   EM28XX_VINMODE_YUV422_VYUY    0x0b
109 #define   EM28XX_VINMODE_RGB8_BGGR      0x0c
110 #define   EM28XX_VINMODE_RGB8_GRBG      0x0d
111 #define   EM28XX_VINMODE_RGB8_GBRG      0x0e
112 #define   EM28XX_VINMODE_RGB8_RGGB      0x0f
113 	  /*
114 	   * apparently:
115 	   *   bit 0: swap component 1+2 with 3+4
116 	   *                 => e.g.: YUYV => YVYU, BGGR => GRBG
117 	   *   bit 1: swap component 1 with 2 and 3 with 4
118 	   *                 => e.g.: YUYV => UYVY, BGGR => GBRG
119 	   */
120 
121 #define EM28XX_R11_VINCTRL	0x11
122 
123 /* em28xx Video Input Control Register 0x11 */
124 #define EM28XX_VINCTRL_VBI_SLICED	0x80
125 #define EM28XX_VINCTRL_VBI_RAW		0x40
126 #define EM28XX_VINCTRL_VOUT_MODE_IN	0x20 /* HREF,VREF,VACT in output */
127 #define EM28XX_VINCTRL_CCIR656_ENABLE	0x10
128 #define EM28XX_VINCTRL_VBI_16BIT_RAW	0x08 /* otherwise 8-bit raw */
129 #define EM28XX_VINCTRL_FID_ON_HREF	0x04
130 #define EM28XX_VINCTRL_DUAL_EDGE_STROBE	0x02
131 #define EM28XX_VINCTRL_INTERLACED	0x01
132 
133 #define EM28XX_R12_VINENABLE	0x12	/* */
134 
135 #define EM28XX_R14_GAMMA	0x14
136 #define EM28XX_R15_RGAIN	0x15
137 #define EM28XX_R16_GGAIN	0x16
138 #define EM28XX_R17_BGAIN	0x17
139 #define EM28XX_R18_ROFFSET	0x18
140 #define EM28XX_R19_GOFFSET	0x19
141 #define EM28XX_R1A_BOFFSET	0x1a
142 
143 #define EM28XX_R1B_OFLOW	0x1b
144 #define EM28XX_R1C_HSTART	0x1c
145 #define EM28XX_R1D_VSTART	0x1d
146 #define EM28XX_R1E_CWIDTH	0x1e
147 #define EM28XX_R1F_CHEIGHT	0x1f
148 
149 #define EM28XX_R20_YGAIN	0x20 /* contrast [0:4]   */
150 #define   CONTRAST_DEFAULT	0x10
151 
152 #define EM28XX_R21_YOFFSET	0x21 /* brightness       */	/* signed */
153 #define   BRIGHTNESS_DEFAULT	0x00
154 
155 #define EM28XX_R22_UVGAIN	0x22 /* saturation [0:4] */
156 #define   SATURATION_DEFAULT	0x10
157 
158 #define EM28XX_R23_UOFFSET	0x23 /* blue balance     */	/* signed */
159 #define   BLUE_BALANCE_DEFAULT	0x00
160 
161 #define EM28XX_R24_VOFFSET	0x24 /* red balance      */	/* signed */
162 #define   RED_BALANCE_DEFAULT	0x00
163 
164 #define EM28XX_R25_SHARPNESS	0x25 /* sharpness [0:4]  */
165 #define   SHARPNESS_DEFAULT	0x00
166 
167 #define EM28XX_R26_COMPR	0x26
168 #define EM28XX_R27_OUTFMT	0x27
169 
170 /* em28xx Output Format Register (0x27) */
171 #define EM28XX_OUTFMT_RGB_8_RGRG	0x00
172 #define EM28XX_OUTFMT_RGB_8_GRGR	0x01
173 #define EM28XX_OUTFMT_RGB_8_GBGB	0x02
174 #define EM28XX_OUTFMT_RGB_8_BGBG	0x03
175 #define EM28XX_OUTFMT_RGB_16_656	0x04
176 #define EM28XX_OUTFMT_RGB_8_BAYER	0x08 /* Pattern in Reg 0x10[1-0] */
177 #define EM28XX_OUTFMT_YUV211		0x10
178 #define EM28XX_OUTFMT_YUV422_Y0UY1V	0x14
179 #define EM28XX_OUTFMT_YUV422_Y1UY0V	0x15
180 #define EM28XX_OUTFMT_YUV411		0x18
181 
182 #define EM28XX_R28_XMIN	0x28
183 #define EM28XX_R29_XMAX	0x29
184 #define EM28XX_R2A_YMIN	0x2a
185 #define EM28XX_R2B_YMAX	0x2b
186 
187 #define EM28XX_R30_HSCALELOW	0x30
188 #define EM28XX_R31_HSCALEHIGH	0x31
189 #define EM28XX_R32_VSCALELOW	0x32
190 #define EM28XX_R33_VSCALEHIGH	0x33
191 #define   EM28XX_HVSCALE_MAX	0x3fff /* => 20% */
192 
193 #define EM28XX_R34_VBI_START_H	0x34
194 #define EM28XX_R35_VBI_START_V	0x35
195 /*
196  * NOTE: the EM276x (and EM25xx, EM277x/8x ?) (camera bridges) use these
197  * registers for a different unknown purpose.
198  *   => register 0x34 is set to capture width / 16
199  *   => register 0x35 is set to capture height / 16
200  */
201 
202 #define EM28XX_R36_VBI_WIDTH	0x36
203 #define EM28XX_R37_VBI_HEIGHT	0x37
204 
205 #define EM28XX_R40_AC97LSB	0x40
206 #define EM28XX_R41_AC97MSB	0x41
207 #define EM28XX_R42_AC97ADDR	0x42
208 #define EM28XX_R43_AC97BUSY	0x43
209 
210 #define EM28XX_R45_IR		0x45
211 	/*
212 	 * 0x45  bit 7    - parity bit
213 	 *	 bits 6-0 - count
214 	 * 0x46  IR brand
215 	 *  0x47  IR data
216 	 */
217 
218 /* em2874 registers */
219 #define EM2874_R50_IR_CONFIG    0x50
220 #define EM2874_R51_IR           0x51
221 #define EM2874_R5D_TS1_PKT_SIZE 0x5d
222 #define EM2874_R5E_TS2_PKT_SIZE 0x5e
223 	/*
224 	 * For both TS1 and TS2, In isochronous mode:
225 	 *  0x01  188 bytes
226 	 *  0x02  376 bytes
227 	 *  0x03  564 bytes
228 	 *  0x04  752 bytes
229 	 *  0x05  940 bytes
230 	 * In bulk mode:
231 	 *  0x01..0xff  total packet count in 188-byte
232 	 */
233 
234 #define EM2874_R5F_TS_ENABLE    0x5f
235 
236 /* em2874/174/84, em25xx, em276x/7x/8x GPIO registers */
237 /*
238  * NOTE: not all ports are bonded out;
239  * Some ports are multiplexed with special function I/O
240  */
241 #define EM2874_R80_GPIO_P0_CTRL    0x80
242 #define EM2874_R81_GPIO_P1_CTRL    0x81
243 #define EM2874_R82_GPIO_P2_CTRL    0x82
244 #define EM2874_R83_GPIO_P3_CTRL    0x83
245 #define EM2874_R84_GPIO_P0_STATE   0x84
246 #define EM2874_R85_GPIO_P1_STATE   0x85
247 #define EM2874_R86_GPIO_P2_STATE   0x86
248 #define EM2874_R87_GPIO_P3_STATE   0x87
249 
250 /* em2874 IR config register (0x50) */
251 #define EM2874_IR_NEC           0x00
252 #define EM2874_IR_NEC_NO_PARITY 0x01
253 #define EM2874_IR_RC5           0x04
254 #define EM2874_IR_RC6_MODE_0    0x08
255 #define EM2874_IR_RC6_MODE_6A   0x0b
256 
257 /* em2874 Transport Stream Enable Register (0x5f) */
258 #define EM2874_TS1_CAPTURE_ENABLE ((unsigned char)BIT(0))
259 #define EM2874_TS1_FILTER_ENABLE  ((unsigned char)BIT(1))
260 #define EM2874_TS1_NULL_DISCARD   ((unsigned char)BIT(2))
261 #define EM2874_TS2_CAPTURE_ENABLE ((unsigned char)BIT(4))
262 #define EM2874_TS2_FILTER_ENABLE  ((unsigned char)BIT(5))
263 #define EM2874_TS2_NULL_DISCARD   ((unsigned char)BIT(6))
264 
265 /* register settings */
266 #define EM2800_AUDIO_SRC_TUNER  0x0d
267 #define EM2800_AUDIO_SRC_LINE   0x0c
268 #define EM28XX_AUDIO_SRC_TUNER	0xc0
269 #define EM28XX_AUDIO_SRC_LINE	0x80
270 
271 /* FIXME: Need to be populated with the other chip ID's */
272 enum em28xx_chip_id {
273 	CHIP_ID_EM2800 = 7,
274 	CHIP_ID_EM2710 = 17,
275 	CHIP_ID_EM2820 = 18,	/* Also used by some em2710 */
276 	CHIP_ID_EM2840 = 20,
277 	CHIP_ID_EM2750 = 33,
278 	CHIP_ID_EM2860 = 34,
279 	CHIP_ID_EM2870 = 35,
280 	CHIP_ID_EM2883 = 36,
281 	CHIP_ID_EM2765 = 54,
282 	CHIP_ID_EM2874 = 65,
283 	CHIP_ID_EM2884 = 68,
284 	CHIP_ID_EM28174 = 113,
285 	CHIP_ID_EM28178 = 114,
286 };
287 
288 /*
289  * Registers used by em202
290  */
291 
292 /* EMP202 vendor registers */
293 #define EM202_EXT_MODEM_CTRL     0x3e
294 #define EM202_GPIO_CONF          0x4c
295 #define EM202_GPIO_POLARITY      0x4e
296 #define EM202_GPIO_STICKY        0x50
297 #define EM202_GPIO_MASK          0x52
298 #define EM202_GPIO_STATUS        0x54
299 #define EM202_SPDIF_OUT_SEL      0x6a
300 #define EM202_ANTIPOP            0x72
301 #define EM202_EAPD_GPIO_ACCESS   0x74
302