1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2017 Intel Corporation */
3 
4 #ifndef __IPU3_CIO2_H
5 #define __IPU3_CIO2_H
6 
7 #include <linux/bits.h>
8 #include <linux/dma-mapping.h>
9 #include <linux/kernel.h>
10 #include <linux/mutex.h>
11 #include <linux/types.h>
12 
13 #include <asm/page.h>
14 
15 #include <media/media-device.h>
16 #include <media/media-entity.h>
17 #include <media/v4l2-async.h>
18 #include <media/v4l2-dev.h>
19 #include <media/v4l2-device.h>
20 #include <media/v4l2-subdev.h>
21 #include <media/videobuf2-core.h>
22 #include <media/videobuf2-v4l2.h>
23 
24 struct cio2_fbpt_entry;		/* defined here, after the first usage */
25 struct pci_dev;
26 
27 #define CIO2_NAME					"ipu3-cio2"
28 #define CIO2_DEVICE_NAME				"Intel IPU3 CIO2"
29 #define CIO2_ENTITY_NAME				"ipu3-csi2"
30 #define CIO2_PCI_ID					0x9d32
31 #define CIO2_PCI_BAR					0
32 #define CIO2_DMA_MASK					DMA_BIT_MASK(39)
33 
34 #define CIO2_IMAGE_MAX_WIDTH				4224U
35 #define CIO2_IMAGE_MAX_HEIGHT				3136U
36 
37 /* 32MB = 8xFBPT_entry */
38 #define CIO2_MAX_LOPS					8
39 #define CIO2_MAX_BUFFERS			(PAGE_SIZE / 16 / CIO2_MAX_LOPS)
40 #define CIO2_LOP_ENTRIES			(PAGE_SIZE / sizeof(u32))
41 
42 #define CIO2_PAD_SINK					0U
43 #define CIO2_PAD_SOURCE					1U
44 #define CIO2_PADS					2U
45 
46 #define CIO2_NUM_DMA_CHAN				20U
47 #define CIO2_NUM_PORTS					4U /* DPHYs */
48 
49 /* 1 for each sensor */
50 #define CIO2_QUEUES					CIO2_NUM_PORTS
51 
52 /* Register and bit field definitions */
53 #define CIO2_REG_PIPE_BASE(n)			((n) * 0x0400)	/* n = 0..3 */
54 #define CIO2_REG_CSIRX_BASE				0x000
55 #define CIO2_REG_MIPIBE_BASE				0x100
56 #define CIO2_REG_PIXELGEN_BAS				0x200
57 #define CIO2_REG_IRQCTRL_BASE				0x300
58 #define CIO2_REG_GPREG_BASE				0x1000
59 
60 /* base register: CIO2_REG_PIPE_BASE(pipe) * CIO2_REG_CSIRX_BASE */
61 #define CIO2_REG_CSIRX_ENABLE			(CIO2_REG_CSIRX_BASE + 0x0)
62 #define CIO2_REG_CSIRX_NOF_ENABLED_LANES	(CIO2_REG_CSIRX_BASE + 0x4)
63 #define CIO2_REG_CSIRX_SP_IF_CONFIG		(CIO2_REG_CSIRX_BASE + 0x10)
64 #define CIO2_REG_CSIRX_LP_IF_CONFIG		(CIO2_REG_CSIRX_BASE + 0x14)
65 #define CIO2_CSIRX_IF_CONFIG_FILTEROUT			0x00
66 #define CIO2_CSIRX_IF_CONFIG_FILTEROUT_VC_INACTIVE	0x01
67 #define CIO2_CSIRX_IF_CONFIG_PASS			0x02
68 #define CIO2_CSIRX_IF_CONFIG_FLAG_ERROR			BIT(2)
69 #define CIO2_REG_CSIRX_STATUS			(CIO2_REG_CSIRX_BASE + 0x18)
70 #define CIO2_REG_CSIRX_STATUS_DLANE_HS		(CIO2_REG_CSIRX_BASE + 0x1c)
71 #define CIO2_CSIRX_STATUS_DLANE_HS_MASK			0xff
72 #define CIO2_REG_CSIRX_STATUS_DLANE_LP		(CIO2_REG_CSIRX_BASE + 0x20)
73 #define CIO2_CSIRX_STATUS_DLANE_LP_MASK			0xffffff
74 /* Termination enable and settle in 0.0625ns units, lane=0..3 or -1 for clock */
75 #define CIO2_REG_CSIRX_DLY_CNT_TERMEN(lane) \
76 				(CIO2_REG_CSIRX_BASE + 0x2c + 8 * (lane))
77 #define CIO2_REG_CSIRX_DLY_CNT_SETTLE(lane) \
78 				(CIO2_REG_CSIRX_BASE + 0x30 + 8 * (lane))
79 /* base register: CIO2_REG_PIPE_BASE(pipe) * CIO2_REG_MIPIBE_BASE */
80 #define CIO2_REG_MIPIBE_ENABLE		(CIO2_REG_MIPIBE_BASE + 0x0)
81 #define CIO2_REG_MIPIBE_STATUS		(CIO2_REG_MIPIBE_BASE + 0x4)
82 #define CIO2_REG_MIPIBE_COMP_FORMAT(vc) \
83 				(CIO2_REG_MIPIBE_BASE + 0x8 + 0x4 * (vc))
84 #define CIO2_REG_MIPIBE_FORCE_RAW8	(CIO2_REG_MIPIBE_BASE + 0x20)
85 #define CIO2_REG_MIPIBE_FORCE_RAW8_ENABLE		BIT(0)
86 #define CIO2_REG_MIPIBE_FORCE_RAW8_USE_TYPEID		BIT(1)
87 #define CIO2_REG_MIPIBE_FORCE_RAW8_TYPEID_SHIFT		2U
88 
89 #define CIO2_REG_MIPIBE_IRQ_STATUS	(CIO2_REG_MIPIBE_BASE + 0x24)
90 #define CIO2_REG_MIPIBE_IRQ_CLEAR	(CIO2_REG_MIPIBE_BASE + 0x28)
91 #define CIO2_REG_MIPIBE_GLOBAL_LUT_DISREGARD (CIO2_REG_MIPIBE_BASE + 0x68)
92 #define CIO2_MIPIBE_GLOBAL_LUT_DISREGARD		1U
93 #define CIO2_REG_MIPIBE_PKT_STALL_STATUS (CIO2_REG_MIPIBE_BASE + 0x6c)
94 #define CIO2_REG_MIPIBE_PARSE_GSP_THROUGH_LP_LUT_REG_IDX \
95 					(CIO2_REG_MIPIBE_BASE + 0x70)
96 #define CIO2_REG_MIPIBE_SP_LUT_ENTRY(vc) \
97 				       (CIO2_REG_MIPIBE_BASE + 0x74 + 4 * (vc))
98 #define CIO2_REG_MIPIBE_LP_LUT_ENTRY(m)	/* m = 0..15 */ \
99 					(CIO2_REG_MIPIBE_BASE + 0x84 + 4 * (m))
100 #define CIO2_MIPIBE_LP_LUT_ENTRY_DISREGARD		1U
101 #define CIO2_MIPIBE_LP_LUT_ENTRY_SID_SHIFT		1U
102 #define CIO2_MIPIBE_LP_LUT_ENTRY_VC_SHIFT		5U
103 #define CIO2_MIPIBE_LP_LUT_ENTRY_FORMAT_TYPE_SHIFT	7U
104 
105 /* base register: CIO2_REG_PIPE_BASE(pipe) * CIO2_REG_IRQCTRL_BASE */
106 /* IRQ registers are 18-bit wide, see cio2_irq_error for bit definitions */
107 #define CIO2_REG_IRQCTRL_EDGE		(CIO2_REG_IRQCTRL_BASE + 0x00)
108 #define CIO2_REG_IRQCTRL_MASK		(CIO2_REG_IRQCTRL_BASE + 0x04)
109 #define CIO2_REG_IRQCTRL_STATUS		(CIO2_REG_IRQCTRL_BASE + 0x08)
110 #define CIO2_REG_IRQCTRL_CLEAR		(CIO2_REG_IRQCTRL_BASE + 0x0c)
111 #define CIO2_REG_IRQCTRL_ENABLE		(CIO2_REG_IRQCTRL_BASE + 0x10)
112 #define CIO2_REG_IRQCTRL_LEVEL_NOT_PULSE	(CIO2_REG_IRQCTRL_BASE + 0x14)
113 
114 #define CIO2_REG_GPREG_SRST		(CIO2_REG_GPREG_BASE + 0x0)
115 #define CIO2_GPREG_SRST_ALL				0xffff	/* Reset all */
116 #define CIO2_REG_FB_HPLL_FREQ		(CIO2_REG_GPREG_BASE + 0x08)
117 #define CIO2_REG_ISCLK_RATIO		(CIO2_REG_GPREG_BASE + 0xc)
118 
119 #define CIO2_REG_CGC					0x1400
120 #define CIO2_CGC_CSI2_TGE				BIT(0)
121 #define CIO2_CGC_PRIM_TGE				BIT(1)
122 #define CIO2_CGC_SIDE_TGE				BIT(2)
123 #define CIO2_CGC_XOSC_TGE				BIT(3)
124 #define CIO2_CGC_MPLL_SHUTDOWN_EN			BIT(4)
125 #define CIO2_CGC_D3I3_TGE				BIT(5)
126 #define CIO2_CGC_CSI2_INTERFRAME_TGE			BIT(6)
127 #define CIO2_CGC_CSI2_PORT_DCGE				BIT(8)
128 #define CIO2_CGC_CSI2_DCGE				BIT(9)
129 #define CIO2_CGC_SIDE_DCGE				BIT(10)
130 #define CIO2_CGC_PRIM_DCGE				BIT(11)
131 #define CIO2_CGC_ROSC_DCGE				BIT(12)
132 #define CIO2_CGC_XOSC_DCGE				BIT(13)
133 #define CIO2_CGC_FLIS_DCGE				BIT(14)
134 #define CIO2_CGC_CLKGATE_HOLDOFF_SHIFT			20U
135 #define CIO2_CGC_CSI_CLKGATE_HOLDOFF_SHIFT		24U
136 #define CIO2_REG_D0I3C					0x1408
137 #define CIO2_D0I3C_I3					BIT(2)	/* Set D0I3 */
138 #define CIO2_D0I3C_RR					BIT(3)	/* Restore? */
139 #define CIO2_REG_SWRESET				0x140c
140 #define CIO2_SWRESET_SWRESET				1U
141 #define CIO2_REG_SENSOR_ACTIVE				0x1410
142 #define CIO2_REG_INT_STS				0x1414
143 #define CIO2_REG_INT_STS_EXT_OE				0x1418
144 #define CIO2_INT_EXT_OE_DMAOE_SHIFT			0U
145 #define CIO2_INT_EXT_OE_DMAOE_MASK			0x7ffff
146 #define CIO2_INT_EXT_OE_OES_SHIFT			24U
147 #define CIO2_INT_EXT_OE_OES_MASK	(0xf << CIO2_INT_EXT_OE_OES_SHIFT)
148 #define CIO2_REG_INT_EN					0x1420
149 #define CIO2_REG_INT_EN_IRQ				(1 << 24)
150 #define CIO2_REG_INT_EN_IOS(dma)	(1U << (((dma) >> 1U) + 12U))
151 /*
152  * Interrupt on completion bit, Eg. DMA 0-3 maps to bit 0-3,
153  * DMA4 & DMA5 map to bit 4 ... DMA18 & DMA19 map to bit 11 Et cetera
154  */
155 #define CIO2_INT_IOC(dma)	(1U << ((dma) < 4U ? (dma) : ((dma) >> 1U) + 2U))
156 #define CIO2_INT_IOC_SHIFT				0
157 #define CIO2_INT_IOC_MASK		(0x7ff << CIO2_INT_IOC_SHIFT)
158 #define CIO2_INT_IOS_IOLN(dma)		(1U << (((dma) >> 1U) + 12U))
159 #define CIO2_INT_IOS_IOLN_SHIFT				12
160 #define CIO2_INT_IOS_IOLN_MASK		(0x3ff << CIO2_INT_IOS_IOLN_SHIFT)
161 #define CIO2_INT_IOIE					BIT(22)
162 #define CIO2_INT_IOOE					BIT(23)
163 #define CIO2_INT_IOIRQ					BIT(24)
164 #define CIO2_REG_INT_EN_EXT_OE				0x1424
165 #define CIO2_REG_DMA_DBG				0x1448
166 #define CIO2_REG_DMA_DBG_DMA_INDEX_SHIFT		0U
167 #define CIO2_REG_PBM_ARB_CTRL				0x1460
168 #define CIO2_PBM_ARB_CTRL_LANES_DIV			0U /* 4-4-2-2 lanes */
169 #define CIO2_PBM_ARB_CTRL_LANES_DIV_SHIFT		0U
170 #define CIO2_PBM_ARB_CTRL_LE_EN				BIT(7)
171 #define CIO2_PBM_ARB_CTRL_PLL_POST_SHTDN		2U
172 #define CIO2_PBM_ARB_CTRL_PLL_POST_SHTDN_SHIFT		8U
173 #define CIO2_PBM_ARB_CTRL_PLL_AHD_WK_UP			480U
174 #define CIO2_PBM_ARB_CTRL_PLL_AHD_WK_UP_SHIFT		16U
175 #define CIO2_REG_PBM_WMCTRL1				0x1464
176 #define CIO2_PBM_WMCTRL1_MIN_2CK_SHIFT			0U
177 #define CIO2_PBM_WMCTRL1_MID1_2CK_SHIFT			8U
178 #define CIO2_PBM_WMCTRL1_MID2_2CK_SHIFT			16U
179 #define CIO2_PBM_WMCTRL1_TS_COUNT_DISABLE		BIT(31)
180 #define CIO2_PBM_WMCTRL1_MIN_2CK	(4 << CIO2_PBM_WMCTRL1_MIN_2CK_SHIFT)
181 #define CIO2_PBM_WMCTRL1_MID1_2CK	(16 << CIO2_PBM_WMCTRL1_MID1_2CK_SHIFT)
182 #define CIO2_PBM_WMCTRL1_MID2_2CK	(21 << CIO2_PBM_WMCTRL1_MID2_2CK_SHIFT)
183 #define CIO2_REG_PBM_WMCTRL2				0x1468
184 #define CIO2_PBM_WMCTRL2_HWM_2CK			40U
185 #define CIO2_PBM_WMCTRL2_HWM_2CK_SHIFT			0U
186 #define CIO2_PBM_WMCTRL2_LWM_2CK			22U
187 #define CIO2_PBM_WMCTRL2_LWM_2CK_SHIFT			8U
188 #define CIO2_PBM_WMCTRL2_OBFFWM_2CK			2U
189 #define CIO2_PBM_WMCTRL2_OBFFWM_2CK_SHIFT		16U
190 #define CIO2_PBM_WMCTRL2_TRANSDYN			1U
191 #define CIO2_PBM_WMCTRL2_TRANSDYN_SHIFT			24U
192 #define CIO2_PBM_WMCTRL2_DYNWMEN			BIT(28)
193 #define CIO2_PBM_WMCTRL2_OBFF_MEM_EN			BIT(29)
194 #define CIO2_PBM_WMCTRL2_OBFF_CPU_EN			BIT(30)
195 #define CIO2_PBM_WMCTRL2_DRAINNOW			BIT(31)
196 #define CIO2_REG_PBM_TS_COUNT				0x146c
197 #define CIO2_REG_PBM_FOPN_ABORT				0x1474
198 /* below n = 0..3 */
199 #define CIO2_PBM_FOPN_ABORT(n)				(0x1 << 8U * (n))
200 #define CIO2_PBM_FOPN_FORCE_ABORT(n)			(0x2 << 8U * (n))
201 #define CIO2_PBM_FOPN_FRAMEOPEN(n)			(0x8 << 8U * (n))
202 #define CIO2_REG_LTRCTRL				0x1480
203 #define CIO2_LTRCTRL_LTRDYNEN				BIT(16)
204 #define CIO2_LTRCTRL_LTRSTABLETIME_SHIFT		8U
205 #define CIO2_LTRCTRL_LTRSTABLETIME_MASK			0xff
206 #define CIO2_LTRCTRL_LTRSEL1S3				BIT(7)
207 #define CIO2_LTRCTRL_LTRSEL1S2				BIT(6)
208 #define CIO2_LTRCTRL_LTRSEL1S1				BIT(5)
209 #define CIO2_LTRCTRL_LTRSEL1S0				BIT(4)
210 #define CIO2_LTRCTRL_LTRSEL2S3				BIT(3)
211 #define CIO2_LTRCTRL_LTRSEL2S2				BIT(2)
212 #define CIO2_LTRCTRL_LTRSEL2S1				BIT(1)
213 #define CIO2_LTRCTRL_LTRSEL2S0				BIT(0)
214 #define CIO2_REG_LTRVAL23				0x1484
215 #define CIO2_REG_LTRVAL01				0x1488
216 #define CIO2_LTRVAL02_VAL_SHIFT				0U
217 #define CIO2_LTRVAL02_SCALE_SHIFT			10U
218 #define CIO2_LTRVAL13_VAL_SHIFT				16U
219 #define CIO2_LTRVAL13_SCALE_SHIFT			26U
220 
221 #define CIO2_LTRVAL0_VAL				175U
222 /* Value times 1024 ns */
223 #define CIO2_LTRVAL0_SCALE				2U
224 #define CIO2_LTRVAL1_VAL				90U
225 #define CIO2_LTRVAL1_SCALE				2U
226 #define CIO2_LTRVAL2_VAL				90U
227 #define CIO2_LTRVAL2_SCALE				2U
228 #define CIO2_LTRVAL3_VAL				90U
229 #define CIO2_LTRVAL3_SCALE				2U
230 
231 #define CIO2_REG_CDMABA(n)		(0x1500 + 0x10 * (n))	/* n = 0..19 */
232 #define CIO2_REG_CDMARI(n)		(0x1504 + 0x10 * (n))
233 #define CIO2_CDMARI_FBPT_RP_SHIFT			0U
234 #define CIO2_CDMARI_FBPT_RP_MASK			0xff
235 #define CIO2_REG_CDMAC0(n)		(0x1508 + 0x10 * (n))
236 #define CIO2_CDMAC0_FBPT_LEN_SHIFT			0U
237 #define CIO2_CDMAC0_FBPT_WIDTH_SHIFT			8U
238 #define CIO2_CDMAC0_FBPT_NS				BIT(25)
239 #define CIO2_CDMAC0_DMA_INTR_ON_FS			BIT(26)
240 #define CIO2_CDMAC0_DMA_INTR_ON_FE			BIT(27)
241 #define CIO2_CDMAC0_FBPT_UPDATE_FIFO_FULL		BIT(28)
242 #define CIO2_CDMAC0_FBPT_FIFO_FULL_FIX_DIS		BIT(29)
243 #define CIO2_CDMAC0_DMA_EN				BIT(30)
244 #define CIO2_CDMAC0_DMA_HALTED				BIT(31)
245 #define CIO2_REG_CDMAC1(n)		(0x150c + 0x10 * (n))
246 #define CIO2_CDMAC1_LINENUMINT_SHIFT			0U
247 #define CIO2_CDMAC1_LINENUMUPDATE_SHIFT			16U
248 /* n = 0..3 */
249 #define CIO2_REG_PXM_PXF_FMT_CFG0(n)	(0x1700 + 0x30 * (n))
250 #define CIO2_PXM_PXF_FMT_CFG_SID0_SHIFT			0U
251 #define CIO2_PXM_PXF_FMT_CFG_SID1_SHIFT			16U
252 #define CIO2_PXM_PXF_FMT_CFG_PCK_64B			(0 << 0)
253 #define CIO2_PXM_PXF_FMT_CFG_PCK_32B			(1 << 0)
254 #define CIO2_PXM_PXF_FMT_CFG_BPP_08			(0 << 2)
255 #define CIO2_PXM_PXF_FMT_CFG_BPP_10			(1 << 2)
256 #define CIO2_PXM_PXF_FMT_CFG_BPP_12			(2 << 2)
257 #define CIO2_PXM_PXF_FMT_CFG_BPP_14			(3 << 2)
258 #define CIO2_PXM_PXF_FMT_CFG_SPEC_4PPC			(0 << 4)
259 #define CIO2_PXM_PXF_FMT_CFG_SPEC_3PPC_RGBA		(1 << 4)
260 #define CIO2_PXM_PXF_FMT_CFG_SPEC_3PPC_ARGB		(2 << 4)
261 #define CIO2_PXM_PXF_FMT_CFG_SPEC_PLANAR2		(3 << 4)
262 #define CIO2_PXM_PXF_FMT_CFG_SPEC_PLANAR3		(4 << 4)
263 #define CIO2_PXM_PXF_FMT_CFG_SPEC_NV16			(5 << 4)
264 #define CIO2_PXM_PXF_FMT_CFG_PSWAP4_1ST_AB		(1 << 7)
265 #define CIO2_PXM_PXF_FMT_CFG_PSWAP4_1ST_CD		(1 << 8)
266 #define CIO2_PXM_PXF_FMT_CFG_PSWAP4_2ND_AC		(1 << 9)
267 #define CIO2_PXM_PXF_FMT_CFG_PSWAP4_2ND_BD		(1 << 10)
268 #define CIO2_REG_INT_STS_EXT_IE				0x17e4
269 #define CIO2_REG_INT_EN_EXT_IE				0x17e8
270 #define CIO2_INT_EXT_IE_ECC_RE(n)			(0x01 << (8U * (n)))
271 #define CIO2_INT_EXT_IE_DPHY_NR(n)			(0x02 << (8U * (n)))
272 #define CIO2_INT_EXT_IE_ECC_NR(n)			(0x04 << (8U * (n)))
273 #define CIO2_INT_EXT_IE_CRCERR(n)			(0x08 << (8U * (n)))
274 #define CIO2_INT_EXT_IE_INTERFRAMEDATA(n)		(0x10 << (8U * (n)))
275 #define CIO2_INT_EXT_IE_PKT2SHORT(n)			(0x20 << (8U * (n)))
276 #define CIO2_INT_EXT_IE_PKT2LONG(n)			(0x40 << (8U * (n)))
277 #define CIO2_INT_EXT_IE_IRQ(n)				(0x80 << (8U * (n)))
278 #define CIO2_REG_PXM_FRF_CFG(n)				(0x1720 + 0x30 * (n))
279 #define CIO2_PXM_FRF_CFG_FNSEL				BIT(0)
280 #define CIO2_PXM_FRF_CFG_FN_RST				BIT(1)
281 #define CIO2_PXM_FRF_CFG_ABORT				BIT(2)
282 #define CIO2_PXM_FRF_CFG_CRC_TH_SHIFT			3U
283 #define CIO2_PXM_FRF_CFG_MSK_ECC_DPHY_NR		BIT(8)
284 #define CIO2_PXM_FRF_CFG_MSK_ECC_RE			BIT(9)
285 #define CIO2_PXM_FRF_CFG_MSK_ECC_DPHY_NE		BIT(10)
286 #define CIO2_PXM_FRF_CFG_EVEN_ODD_MODE_SHIFT		11U
287 #define CIO2_PXM_FRF_CFG_MASK_CRC_THRES			BIT(13)
288 #define CIO2_PXM_FRF_CFG_MASK_CSI_ACCEPT		BIT(14)
289 #define CIO2_PXM_FRF_CFG_CIOHC_FS_MODE			BIT(15)
290 #define CIO2_PXM_FRF_CFG_CIOHC_FRST_FRM_SHIFT		16U
291 #define CIO2_REG_PXM_SID2BID0(n)			(0x1724 + 0x30 * (n))
292 #define CIO2_FB_HPLL_FREQ				0x2
293 #define CIO2_ISCLK_RATIO				0xc
294 
295 #define CIO2_IRQCTRL_MASK				0x3ffff
296 
297 #define CIO2_INT_EN_EXT_OE_MASK				0x8f0fffff
298 
299 #define CIO2_CGC_CLKGATE_HOLDOFF			3U
300 #define CIO2_CGC_CSI_CLKGATE_HOLDOFF			5U
301 
302 #define CIO2_PXM_FRF_CFG_CRC_TH				16
303 
304 #define CIO2_INT_EN_EXT_IE_MASK				0xffffffff
305 
306 #define CIO2_DMA_CHAN					0U
307 
308 #define CIO2_CSIRX_DLY_CNT_CLANE_IDX			-1
309 
310 #define CIO2_CSIRX_DLY_CNT_TERMEN_CLANE_A		0
311 #define CIO2_CSIRX_DLY_CNT_TERMEN_CLANE_B		0
312 #define CIO2_CSIRX_DLY_CNT_SETTLE_CLANE_A		95
313 #define CIO2_CSIRX_DLY_CNT_SETTLE_CLANE_B		-8
314 
315 #define CIO2_CSIRX_DLY_CNT_TERMEN_DLANE_A		0
316 #define CIO2_CSIRX_DLY_CNT_TERMEN_DLANE_B		0
317 #define CIO2_CSIRX_DLY_CNT_SETTLE_DLANE_A		85
318 #define CIO2_CSIRX_DLY_CNT_SETTLE_DLANE_B		-2
319 
320 #define CIO2_CSIRX_DLY_CNT_TERMEN_DEFAULT		0x4
321 #define CIO2_CSIRX_DLY_CNT_SETTLE_DEFAULT		0x570
322 
323 #define CIO2_PMCSR_OFFSET				4U
324 #define CIO2_PMCSR_D0D3_SHIFT				2U
325 #define CIO2_PMCSR_D3					0x3
326 
327 struct cio2_csi2_timing {
328 	s32 clk_termen;
329 	s32 clk_settle;
330 	s32 dat_termen;
331 	s32 dat_settle;
332 };
333 
334 struct cio2_buffer {
335 	struct vb2_v4l2_buffer vbb;
336 	u32 *lop[CIO2_MAX_LOPS];
337 	dma_addr_t lop_bus_addr[CIO2_MAX_LOPS];
338 	unsigned int offset;
339 };
340 
341 #define to_cio2_buffer(vb)	container_of(vb, struct cio2_buffer, vbb.vb2_buf)
342 
343 struct csi2_bus_info {
344 	u32 port;
345 	u32 lanes;
346 };
347 
348 struct cio2_queue {
349 	/* mutex to be used by vb2_queue */
350 	struct mutex lock;
351 	struct media_pipeline pipe;
352 	struct csi2_bus_info csi2;
353 	struct v4l2_subdev *sensor;
354 	void __iomem *csi_rx_base;
355 
356 	/* Subdev, /dev/v4l-subdevX */
357 	struct v4l2_subdev subdev;
358 	struct mutex subdev_lock; /* Serialise acces to subdev_fmt field */
359 	struct media_pad subdev_pads[CIO2_PADS];
360 	struct v4l2_mbus_framefmt subdev_fmt;
361 	atomic_t frame_sequence;
362 
363 	/* Video device, /dev/videoX */
364 	struct video_device vdev;
365 	struct media_pad vdev_pad;
366 	struct v4l2_pix_format_mplane format;
367 	struct vb2_queue vbq;
368 
369 	/* Buffer queue handling */
370 	struct cio2_fbpt_entry *fbpt;	/* Frame buffer pointer table */
371 	dma_addr_t fbpt_bus_addr;
372 	struct cio2_buffer *bufs[CIO2_MAX_BUFFERS];
373 	unsigned int bufs_first;	/* Index of the first used entry */
374 	unsigned int bufs_next;	/* Index of the first unused entry */
375 	atomic_t bufs_queued;
376 };
377 
378 struct cio2_device {
379 	struct pci_dev *pci_dev;
380 	void __iomem *base;
381 	struct v4l2_device v4l2_dev;
382 	struct cio2_queue queue[CIO2_QUEUES];
383 	struct cio2_queue *cur_queue;
384 	/* mutex to be used by video_device */
385 	struct mutex lock;
386 
387 	bool streaming;
388 	struct v4l2_async_notifier notifier;
389 	struct media_device media_dev;
390 
391 	/*
392 	 * Safety net to catch DMA fetch ahead
393 	 * when reaching the end of LOP
394 	 */
395 	void *dummy_page;
396 	/* DMA handle of dummy_page */
397 	dma_addr_t dummy_page_bus_addr;
398 	/* single List of Pointers (LOP) page */
399 	u32 *dummy_lop;
400 	/* DMA handle of dummy_lop */
401 	dma_addr_t dummy_lop_bus_addr;
402 };
403 
404 #define to_cio2_device(n)	container_of(n, struct cio2_device, notifier)
405 
406 /**************** Virtual channel ****************/
407 /*
408  * This should come from sensor driver. No
409  * driver interface nor requirement yet.
410  */
411 #define SENSOR_VIR_CH_DFLT		0
412 
413 /**************** FBPT operations ****************/
414 #define CIO2_FBPT_SIZE			(CIO2_MAX_BUFFERS * CIO2_MAX_LOPS * \
415 					 sizeof(struct cio2_fbpt_entry))
416 
417 #define CIO2_FBPT_SUBENTRY_UNIT		4
418 
419 /* cio2 fbpt first_entry ctrl status */
420 #define CIO2_FBPT_CTRL_VALID		BIT(0)
421 #define CIO2_FBPT_CTRL_IOC		BIT(1)
422 #define CIO2_FBPT_CTRL_IOS		BIT(2)
423 #define CIO2_FBPT_CTRL_SUCCXFAIL	BIT(3)
424 #define CIO2_FBPT_CTRL_CMPLCODE_SHIFT	4
425 
426 /*
427  * Frame Buffer Pointer Table(FBPT) entry
428  * each entry describe an output buffer and consists of
429  * several sub-entries
430  */
431 struct __packed cio2_fbpt_entry {
432 	union {
433 		struct __packed {
434 			u32 ctrl; /* status ctrl */
435 			u16 cur_line_num; /* current line # written to DDR */
436 			u16 frame_num; /* updated by DMA upon FE */
437 			u32 first_page_offset; /* offset for 1st page in LOP */
438 		} first_entry;
439 		/* Second entry per buffer */
440 		struct __packed {
441 			u32 timestamp;
442 			u32 num_of_bytes;
443 			/* the number of bytes for write on last page */
444 			u16 last_page_available_bytes;
445 			/* the number of pages allocated for this buf */
446 			u16 num_of_pages;
447 		} second_entry;
448 	};
449 	u32 lop_page_addr;	/* Points to list of pointers (LOP) table */
450 };
451 
file_to_cio2_queue(struct file * file)452 static inline struct cio2_queue *file_to_cio2_queue(struct file *file)
453 {
454 	return container_of(video_devdata(file), struct cio2_queue, vdev);
455 }
456 
vb2q_to_cio2_queue(struct vb2_queue * vq)457 static inline struct cio2_queue *vb2q_to_cio2_queue(struct vb2_queue *vq)
458 {
459 	return container_of(vq, struct cio2_queue, vbq);
460 }
461 
462 #endif
463