1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2004,2012 Freescale Semiconductor, Inc
4  * All rights reserved.
5  *
6  * Freescale USB device/endpoint management registers
7  */
8 #ifndef __FSL_USB2_UDC_H
9 #define __FSL_USB2_UDC_H
10 
11 #include <linux/usb/ch9.h>
12 #include <linux/usb/gadget.h>
13 
14 /* ### define USB registers here
15  */
16 #define USB_MAX_CTRL_PAYLOAD		64
17 #define USB_DR_SYS_OFFSET		0x400
18 
19  /* USB DR device mode registers (Little Endian) */
20 struct usb_dr_device {
21 	/* Capability register */
22 	u8 res1[256];
23 	u16 caplength;		/* Capability Register Length */
24 	u16 hciversion;		/* Host Controller Interface Version */
25 	u32 hcsparams;		/* Host Controller Structural Parameters */
26 	u32 hccparams;		/* Host Controller Capability Parameters */
27 	u8 res2[20];
28 	u32 dciversion;		/* Device Controller Interface Version */
29 	u32 dccparams;		/* Device Controller Capability Parameters */
30 	u8 res3[24];
31 	/* Operation register */
32 	u32 usbcmd;		/* USB Command Register */
33 	u32 usbsts;		/* USB Status Register */
34 	u32 usbintr;		/* USB Interrupt Enable Register */
35 	u32 frindex;		/* Frame Index Register */
36 	u8 res4[4];
37 	u32 deviceaddr;		/* Device Address */
38 	u32 endpointlistaddr;	/* Endpoint List Address Register */
39 	u8 res5[4];
40 	u32 burstsize;		/* Master Interface Data Burst Size Register */
41 	u32 txttfilltuning;	/* Transmit FIFO Tuning Controls Register */
42 	u8 res6[24];
43 	u32 configflag;		/* Configure Flag Register */
44 	u32 portsc1;		/* Port 1 Status and Control Register */
45 	u8 res7[28];
46 	u32 otgsc;		/* On-The-Go Status and Control */
47 	u32 usbmode;		/* USB Mode Register */
48 	u32 endptsetupstat;	/* Endpoint Setup Status Register */
49 	u32 endpointprime;	/* Endpoint Initialization Register */
50 	u32 endptflush;		/* Endpoint Flush Register */
51 	u32 endptstatus;	/* Endpoint Status Register */
52 	u32 endptcomplete;	/* Endpoint Complete Register */
53 	u32 endptctrl[6];	/* Endpoint Control Registers */
54 };
55 
56  /* USB DR host mode registers (Little Endian) */
57 struct usb_dr_host {
58 	/* Capability register */
59 	u8 res1[256];
60 	u16 caplength;		/* Capability Register Length */
61 	u16 hciversion;		/* Host Controller Interface Version */
62 	u32 hcsparams;		/* Host Controller Structural Parameters */
63 	u32 hccparams;		/* Host Controller Capability Parameters */
64 	u8 res2[20];
65 	u32 dciversion;		/* Device Controller Interface Version */
66 	u32 dccparams;		/* Device Controller Capability Parameters */
67 	u8 res3[24];
68 	/* Operation register */
69 	u32 usbcmd;		/* USB Command Register */
70 	u32 usbsts;		/* USB Status Register */
71 	u32 usbintr;		/* USB Interrupt Enable Register */
72 	u32 frindex;		/* Frame Index Register */
73 	u8 res4[4];
74 	u32 periodiclistbase;	/* Periodic Frame List Base Address Register */
75 	u32 asynclistaddr;	/* Current Asynchronous List Address Register */
76 	u8 res5[4];
77 	u32 burstsize;		/* Master Interface Data Burst Size Register */
78 	u32 txttfilltuning;	/* Transmit FIFO Tuning Controls Register */
79 	u8 res6[24];
80 	u32 configflag;		/* Configure Flag Register */
81 	u32 portsc1;		/* Port 1 Status and Control Register */
82 	u8 res7[28];
83 	u32 otgsc;		/* On-The-Go Status and Control */
84 	u32 usbmode;		/* USB Mode Register */
85 	u32 endptsetupstat;	/* Endpoint Setup Status Register */
86 	u32 endpointprime;	/* Endpoint Initialization Register */
87 	u32 endptflush;		/* Endpoint Flush Register */
88 	u32 endptstatus;	/* Endpoint Status Register */
89 	u32 endptcomplete;	/* Endpoint Complete Register */
90 	u32 endptctrl[6];	/* Endpoint Control Registers */
91 };
92 
93  /* non-EHCI USB system interface registers (Big Endian) */
94 struct usb_sys_interface {
95 	u32 snoop1;
96 	u32 snoop2;
97 	u32 age_cnt_thresh;	/* Age Count Threshold Register */
98 	u32 pri_ctrl;		/* Priority Control Register */
99 	u32 si_ctrl;		/* System Interface Control Register */
100 	u8 res[236];
101 	u32 control;		/* General Purpose Control Register */
102 };
103 
104 /* ep0 transfer state */
105 #define WAIT_FOR_SETUP          0
106 #define DATA_STATE_XMIT         1
107 #define DATA_STATE_NEED_ZLP     2
108 #define WAIT_FOR_OUT_STATUS     3
109 #define DATA_STATE_RECV         4
110 
111 /* Device Controller Capability Parameter register */
112 #define DCCPARAMS_DC				0x00000080
113 #define DCCPARAMS_DEN_MASK			0x0000001f
114 
115 /* Frame Index Register Bit Masks */
116 #define	USB_FRINDEX_MASKS			0x3fff
117 /* USB CMD  Register Bit Masks */
118 #define  USB_CMD_RUN_STOP                     0x00000001
119 #define  USB_CMD_CTRL_RESET                   0x00000002
120 #define  USB_CMD_PERIODIC_SCHEDULE_EN         0x00000010
121 #define  USB_CMD_ASYNC_SCHEDULE_EN            0x00000020
122 #define  USB_CMD_INT_AA_DOORBELL              0x00000040
123 #define  USB_CMD_ASP                          0x00000300
124 #define  USB_CMD_ASYNC_SCH_PARK_EN            0x00000800
125 #define  USB_CMD_SUTW                         0x00002000
126 #define  USB_CMD_ATDTW                        0x00004000
127 #define  USB_CMD_ITC                          0x00FF0000
128 
129 /* bit 15,3,2 are frame list size */
130 #define  USB_CMD_FRAME_SIZE_1024              0x00000000
131 #define  USB_CMD_FRAME_SIZE_512               0x00000004
132 #define  USB_CMD_FRAME_SIZE_256               0x00000008
133 #define  USB_CMD_FRAME_SIZE_128               0x0000000C
134 #define  USB_CMD_FRAME_SIZE_64                0x00008000
135 #define  USB_CMD_FRAME_SIZE_32                0x00008004
136 #define  USB_CMD_FRAME_SIZE_16                0x00008008
137 #define  USB_CMD_FRAME_SIZE_8                 0x0000800C
138 
139 /* bit 9-8 are async schedule park mode count */
140 #define  USB_CMD_ASP_00                       0x00000000
141 #define  USB_CMD_ASP_01                       0x00000100
142 #define  USB_CMD_ASP_10                       0x00000200
143 #define  USB_CMD_ASP_11                       0x00000300
144 #define  USB_CMD_ASP_BIT_POS                  8
145 
146 /* bit 23-16 are interrupt threshold control */
147 #define  USB_CMD_ITC_NO_THRESHOLD             0x00000000
148 #define  USB_CMD_ITC_1_MICRO_FRM              0x00010000
149 #define  USB_CMD_ITC_2_MICRO_FRM              0x00020000
150 #define  USB_CMD_ITC_4_MICRO_FRM              0x00040000
151 #define  USB_CMD_ITC_8_MICRO_FRM              0x00080000
152 #define  USB_CMD_ITC_16_MICRO_FRM             0x00100000
153 #define  USB_CMD_ITC_32_MICRO_FRM             0x00200000
154 #define  USB_CMD_ITC_64_MICRO_FRM             0x00400000
155 #define  USB_CMD_ITC_BIT_POS                  16
156 
157 /* USB STS Register Bit Masks */
158 #define  USB_STS_INT                          0x00000001
159 #define  USB_STS_ERR                          0x00000002
160 #define  USB_STS_PORT_CHANGE                  0x00000004
161 #define  USB_STS_FRM_LST_ROLL                 0x00000008
162 #define  USB_STS_SYS_ERR                      0x00000010
163 #define  USB_STS_IAA                          0x00000020
164 #define  USB_STS_RESET                        0x00000040
165 #define  USB_STS_SOF                          0x00000080
166 #define  USB_STS_SUSPEND                      0x00000100
167 #define  USB_STS_HC_HALTED                    0x00001000
168 #define  USB_STS_RCL                          0x00002000
169 #define  USB_STS_PERIODIC_SCHEDULE            0x00004000
170 #define  USB_STS_ASYNC_SCHEDULE               0x00008000
171 
172 /* USB INTR Register Bit Masks */
173 #define  USB_INTR_INT_EN                      0x00000001
174 #define  USB_INTR_ERR_INT_EN                  0x00000002
175 #define  USB_INTR_PTC_DETECT_EN               0x00000004
176 #define  USB_INTR_FRM_LST_ROLL_EN             0x00000008
177 #define  USB_INTR_SYS_ERR_EN                  0x00000010
178 #define  USB_INTR_ASYN_ADV_EN                 0x00000020
179 #define  USB_INTR_RESET_EN                    0x00000040
180 #define  USB_INTR_SOF_EN                      0x00000080
181 #define  USB_INTR_DEVICE_SUSPEND              0x00000100
182 
183 /* Device Address bit masks */
184 #define  USB_DEVICE_ADDRESS_MASK              0xFE000000
185 #define  USB_DEVICE_ADDRESS_BIT_POS           25
186 
187 /* endpoint list address bit masks */
188 #define USB_EP_LIST_ADDRESS_MASK              0xfffff800
189 
190 /* PORTSCX  Register Bit Masks */
191 #define  PORTSCX_CURRENT_CONNECT_STATUS       0x00000001
192 #define  PORTSCX_CONNECT_STATUS_CHANGE        0x00000002
193 #define  PORTSCX_PORT_ENABLE                  0x00000004
194 #define  PORTSCX_PORT_EN_DIS_CHANGE           0x00000008
195 #define  PORTSCX_OVER_CURRENT_ACT             0x00000010
196 #define  PORTSCX_OVER_CURRENT_CHG             0x00000020
197 #define  PORTSCX_PORT_FORCE_RESUME            0x00000040
198 #define  PORTSCX_PORT_SUSPEND                 0x00000080
199 #define  PORTSCX_PORT_RESET                   0x00000100
200 #define  PORTSCX_LINE_STATUS_BITS             0x00000C00
201 #define  PORTSCX_PORT_POWER                   0x00001000
202 #define  PORTSCX_PORT_INDICTOR_CTRL           0x0000C000
203 #define  PORTSCX_PORT_TEST_CTRL               0x000F0000
204 #define  PORTSCX_WAKE_ON_CONNECT_EN           0x00100000
205 #define  PORTSCX_WAKE_ON_CONNECT_DIS          0x00200000
206 #define  PORTSCX_WAKE_ON_OVER_CURRENT         0x00400000
207 #define  PORTSCX_PHY_LOW_POWER_SPD            0x00800000
208 #define  PORTSCX_PORT_FORCE_FULL_SPEED        0x01000000
209 #define  PORTSCX_PORT_SPEED_MASK              0x0C000000
210 #define  PORTSCX_PORT_WIDTH                   0x10000000
211 #define  PORTSCX_PHY_TYPE_SEL                 0xC0000000
212 
213 /* bit 11-10 are line status */
214 #define  PORTSCX_LINE_STATUS_SE0              0x00000000
215 #define  PORTSCX_LINE_STATUS_JSTATE           0x00000400
216 #define  PORTSCX_LINE_STATUS_KSTATE           0x00000800
217 #define  PORTSCX_LINE_STATUS_UNDEF            0x00000C00
218 #define  PORTSCX_LINE_STATUS_BIT_POS          10
219 
220 /* bit 15-14 are port indicator control */
221 #define  PORTSCX_PIC_OFF                      0x00000000
222 #define  PORTSCX_PIC_AMBER                    0x00004000
223 #define  PORTSCX_PIC_GREEN                    0x00008000
224 #define  PORTSCX_PIC_UNDEF                    0x0000C000
225 #define  PORTSCX_PIC_BIT_POS                  14
226 
227 /* bit 19-16 are port test control */
228 #define  PORTSCX_PTC_DISABLE                  0x00000000
229 #define  PORTSCX_PTC_JSTATE                   0x00010000
230 #define  PORTSCX_PTC_KSTATE                   0x00020000
231 #define  PORTSCX_PTC_SEQNAK                   0x00030000
232 #define  PORTSCX_PTC_PACKET                   0x00040000
233 #define  PORTSCX_PTC_FORCE_EN                 0x00050000
234 #define  PORTSCX_PTC_BIT_POS                  16
235 
236 /* bit 27-26 are port speed */
237 #define  PORTSCX_PORT_SPEED_FULL              0x00000000
238 #define  PORTSCX_PORT_SPEED_LOW               0x04000000
239 #define  PORTSCX_PORT_SPEED_HIGH              0x08000000
240 #define  PORTSCX_PORT_SPEED_UNDEF             0x0C000000
241 #define  PORTSCX_SPEED_BIT_POS                26
242 
243 /* bit 28 is parallel transceiver width for UTMI interface */
244 #define  PORTSCX_PTW                          0x10000000
245 #define  PORTSCX_PTW_8BIT                     0x00000000
246 #define  PORTSCX_PTW_16BIT                    0x10000000
247 
248 /* bit 31-30 are port transceiver select */
249 #define  PORTSCX_PTS_UTMI                     0x00000000
250 #define  PORTSCX_PTS_ULPI                     0x80000000
251 #define  PORTSCX_PTS_FSLS                     0xC0000000
252 #define  PORTSCX_PTS_BIT_POS                  30
253 
254 /* otgsc Register Bit Masks */
255 #define  OTGSC_CTRL_VUSB_DISCHARGE            0x00000001
256 #define  OTGSC_CTRL_VUSB_CHARGE               0x00000002
257 #define  OTGSC_CTRL_OTG_TERM                  0x00000008
258 #define  OTGSC_CTRL_DATA_PULSING              0x00000010
259 #define  OTGSC_STS_USB_ID                     0x00000100
260 #define  OTGSC_STS_A_VBUS_VALID               0x00000200
261 #define  OTGSC_STS_A_SESSION_VALID            0x00000400
262 #define  OTGSC_STS_B_SESSION_VALID            0x00000800
263 #define  OTGSC_STS_B_SESSION_END              0x00001000
264 #define  OTGSC_STS_1MS_TOGGLE                 0x00002000
265 #define  OTGSC_STS_DATA_PULSING               0x00004000
266 #define  OTGSC_INTSTS_USB_ID                  0x00010000
267 #define  OTGSC_INTSTS_A_VBUS_VALID            0x00020000
268 #define  OTGSC_INTSTS_A_SESSION_VALID         0x00040000
269 #define  OTGSC_INTSTS_B_SESSION_VALID         0x00080000
270 #define  OTGSC_INTSTS_B_SESSION_END           0x00100000
271 #define  OTGSC_INTSTS_1MS                     0x00200000
272 #define  OTGSC_INTSTS_DATA_PULSING            0x00400000
273 #define  OTGSC_INTR_USB_ID                    0x01000000
274 #define  OTGSC_INTR_A_VBUS_VALID              0x02000000
275 #define  OTGSC_INTR_A_SESSION_VALID           0x04000000
276 #define  OTGSC_INTR_B_SESSION_VALID           0x08000000
277 #define  OTGSC_INTR_B_SESSION_END             0x10000000
278 #define  OTGSC_INTR_1MS_TIMER                 0x20000000
279 #define  OTGSC_INTR_DATA_PULSING              0x40000000
280 
281 /* USB MODE Register Bit Masks */
282 #define  USB_MODE_CTRL_MODE_IDLE              0x00000000
283 #define  USB_MODE_CTRL_MODE_DEVICE            0x00000002
284 #define  USB_MODE_CTRL_MODE_HOST              0x00000003
285 #define  USB_MODE_CTRL_MODE_MASK              0x00000003
286 #define  USB_MODE_CTRL_MODE_RSV               0x00000001
287 #define  USB_MODE_ES                          0x00000004 /* Endian Select */
288 #define  USB_MODE_SETUP_LOCK_OFF              0x00000008
289 #define  USB_MODE_STREAM_DISABLE              0x00000010
290 /* Endpoint Flush Register */
291 #define EPFLUSH_TX_OFFSET		      0x00010000
292 #define EPFLUSH_RX_OFFSET		      0x00000000
293 
294 /* Endpoint Setup Status bit masks */
295 #define  EP_SETUP_STATUS_MASK                 0x0000003F
296 #define  EP_SETUP_STATUS_EP0		      0x00000001
297 
298 /* ENDPOINTCTRLx  Register Bit Masks */
299 #define  EPCTRL_TX_ENABLE                     0x00800000
300 #define  EPCTRL_TX_DATA_TOGGLE_RST            0x00400000	/* Not EP0 */
301 #define  EPCTRL_TX_DATA_TOGGLE_INH            0x00200000	/* Not EP0 */
302 #define  EPCTRL_TX_TYPE                       0x000C0000
303 #define  EPCTRL_TX_DATA_SOURCE                0x00020000	/* Not EP0 */
304 #define  EPCTRL_TX_EP_STALL                   0x00010000
305 #define  EPCTRL_RX_ENABLE                     0x00000080
306 #define  EPCTRL_RX_DATA_TOGGLE_RST            0x00000040	/* Not EP0 */
307 #define  EPCTRL_RX_DATA_TOGGLE_INH            0x00000020	/* Not EP0 */
308 #define  EPCTRL_RX_TYPE                       0x0000000C
309 #define  EPCTRL_RX_DATA_SINK                  0x00000002	/* Not EP0 */
310 #define  EPCTRL_RX_EP_STALL                   0x00000001
311 
312 /* bit 19-18 and 3-2 are endpoint type */
313 #define  EPCTRL_EP_TYPE_CONTROL               0
314 #define  EPCTRL_EP_TYPE_ISO                   1
315 #define  EPCTRL_EP_TYPE_BULK                  2
316 #define  EPCTRL_EP_TYPE_INTERRUPT             3
317 #define  EPCTRL_TX_EP_TYPE_SHIFT              18
318 #define  EPCTRL_RX_EP_TYPE_SHIFT              2
319 
320 /* SNOOPn Register Bit Masks */
321 #define  SNOOP_ADDRESS_MASK                   0xFFFFF000
322 #define  SNOOP_SIZE_ZERO                      0x00	/* snooping disable */
323 #define  SNOOP_SIZE_4KB                       0x0B	/* 4KB snoop size */
324 #define  SNOOP_SIZE_8KB                       0x0C
325 #define  SNOOP_SIZE_16KB                      0x0D
326 #define  SNOOP_SIZE_32KB                      0x0E
327 #define  SNOOP_SIZE_64KB                      0x0F
328 #define  SNOOP_SIZE_128KB                     0x10
329 #define  SNOOP_SIZE_256KB                     0x11
330 #define  SNOOP_SIZE_512KB                     0x12
331 #define  SNOOP_SIZE_1MB                       0x13
332 #define  SNOOP_SIZE_2MB                       0x14
333 #define  SNOOP_SIZE_4MB                       0x15
334 #define  SNOOP_SIZE_8MB                       0x16
335 #define  SNOOP_SIZE_16MB                      0x17
336 #define  SNOOP_SIZE_32MB                      0x18
337 #define  SNOOP_SIZE_64MB                      0x19
338 #define  SNOOP_SIZE_128MB                     0x1A
339 #define  SNOOP_SIZE_256MB                     0x1B
340 #define  SNOOP_SIZE_512MB                     0x1C
341 #define  SNOOP_SIZE_1GB                       0x1D
342 #define  SNOOP_SIZE_2GB                       0x1E	/* 2GB snoop size */
343 
344 /* pri_ctrl Register Bit Masks */
345 #define  PRI_CTRL_PRI_LVL1                    0x0000000C
346 #define  PRI_CTRL_PRI_LVL0                    0x00000003
347 
348 /* si_ctrl Register Bit Masks */
349 #define  SI_CTRL_ERR_DISABLE                  0x00000010
350 #define  SI_CTRL_IDRC_DISABLE                 0x00000008
351 #define  SI_CTRL_RD_SAFE_EN                   0x00000004
352 #define  SI_CTRL_RD_PREFETCH_DISABLE          0x00000002
353 #define  SI_CTRL_RD_PREFEFETCH_VAL            0x00000001
354 
355 /* control Register Bit Masks */
356 #define  USB_CTRL_IOENB                       0x00000004
357 #define  USB_CTRL_ULPI_INT0EN                 0x00000001
358 #define USB_CTRL_UTMI_PHY_EN		      0x00000200
359 #define USB_CTRL_USB_EN			      0x00000004
360 #define USB_CTRL_ULPI_PHY_CLK_SEL	      0x00000400
361 
362 /* Endpoint Queue Head data struct
363  * Rem: all the variables of qh are LittleEndian Mode
364  * and NEXT_POINTER_MASK should operate on a LittleEndian, Phy Addr
365  */
366 struct ep_queue_head {
367 	u32 max_pkt_length;	/* Mult(31-30) , Zlt(29) , Max Pkt len
368 				   and IOS(15) */
369 	u32 curr_dtd_ptr;	/* Current dTD Pointer(31-5) */
370 	u32 next_dtd_ptr;	/* Next dTD Pointer(31-5), T(0) */
371 	u32 size_ioc_int_sts;	/* Total bytes (30-16), IOC (15),
372 				   MultO(11-10), STS (7-0)  */
373 	u32 buff_ptr0;		/* Buffer pointer Page 0 (31-12) */
374 	u32 buff_ptr1;		/* Buffer pointer Page 1 (31-12) */
375 	u32 buff_ptr2;		/* Buffer pointer Page 2 (31-12) */
376 	u32 buff_ptr3;		/* Buffer pointer Page 3 (31-12) */
377 	u32 buff_ptr4;		/* Buffer pointer Page 4 (31-12) */
378 	u32 res1;
379 	u8 setup_buffer[8];	/* Setup data 8 bytes */
380 	u32 res2[4];
381 };
382 
383 /* Endpoint Queue Head Bit Masks */
384 #define  EP_QUEUE_HEAD_MULT_POS               30
385 #define  EP_QUEUE_HEAD_ZLT_SEL                0x20000000
386 #define  EP_QUEUE_HEAD_MAX_PKT_LEN_POS        16
387 #define  EP_QUEUE_HEAD_MAX_PKT_LEN(ep_info)   (((ep_info)>>16)&0x07ff)
388 #define  EP_QUEUE_HEAD_IOS                    0x00008000
389 #define  EP_QUEUE_HEAD_NEXT_TERMINATE         0x00000001
390 #define  EP_QUEUE_HEAD_IOC                    0x00008000
391 #define  EP_QUEUE_HEAD_MULTO                  0x00000C00
392 #define  EP_QUEUE_HEAD_STATUS_HALT	      0x00000040
393 #define  EP_QUEUE_HEAD_STATUS_ACTIVE          0x00000080
394 #define  EP_QUEUE_CURRENT_OFFSET_MASK         0x00000FFF
395 #define  EP_QUEUE_HEAD_NEXT_POINTER_MASK      0xFFFFFFE0
396 #define  EP_QUEUE_FRINDEX_MASK                0x000007FF
397 #define  EP_MAX_LENGTH_TRANSFER               0x4000
398 
399 /* Endpoint Transfer Descriptor data struct */
400 /* Rem: all the variables of td are LittleEndian Mode */
401 struct ep_td_struct {
402 	u32 next_td_ptr;	/* Next TD pointer(31-5), T(0) set
403 				   indicate invalid */
404 	u32 size_ioc_sts;	/* Total bytes (30-16), IOC (15),
405 				   MultO(11-10), STS (7-0)  */
406 	u32 buff_ptr0;		/* Buffer pointer Page 0 */
407 	u32 buff_ptr1;		/* Buffer pointer Page 1 */
408 	u32 buff_ptr2;		/* Buffer pointer Page 2 */
409 	u32 buff_ptr3;		/* Buffer pointer Page 3 */
410 	u32 buff_ptr4;		/* Buffer pointer Page 4 */
411 	u32 res;
412 	/* 32 bytes */
413 	dma_addr_t td_dma;	/* dma address for this td */
414 	/* virtual address of next td specified in next_td_ptr */
415 	struct ep_td_struct *next_td_virt;
416 };
417 
418 /* Endpoint Transfer Descriptor bit Masks */
419 #define  DTD_NEXT_TERMINATE                   0x00000001
420 #define  DTD_IOC                              0x00008000
421 #define  DTD_STATUS_ACTIVE                    0x00000080
422 #define  DTD_STATUS_HALTED                    0x00000040
423 #define  DTD_STATUS_DATA_BUFF_ERR             0x00000020
424 #define  DTD_STATUS_TRANSACTION_ERR           0x00000008
425 #define  DTD_RESERVED_FIELDS                  0x80007300
426 #define  DTD_ADDR_MASK                        0xFFFFFFE0
427 #define  DTD_PACKET_SIZE                      0x7FFF0000
428 #define  DTD_LENGTH_BIT_POS                   16
429 #define  DTD_ERROR_MASK                       (DTD_STATUS_HALTED | \
430                                                DTD_STATUS_DATA_BUFF_ERR | \
431                                                DTD_STATUS_TRANSACTION_ERR)
432 /* Alignment requirements; must be a power of two */
433 #define DTD_ALIGNMENT				0x20
434 #define QH_ALIGNMENT				2048
435 
436 /* Controller dma boundary */
437 #define UDC_DMA_BOUNDARY			0x1000
438 
439 /*-------------------------------------------------------------------------*/
440 
441 /* ### driver private data
442  */
443 struct fsl_req {
444 	struct usb_request req;
445 	struct list_head queue;
446 	/* ep_queue() func will add
447 	   a request->queue into a udc_ep->queue 'd tail */
448 	struct fsl_ep *ep;
449 	unsigned mapped:1;
450 
451 	struct ep_td_struct *head, *tail;	/* For dTD List
452 						   cpu endian Virtual addr */
453 	unsigned int dtd_count;
454 };
455 
456 #define REQ_UNCOMPLETE			1
457 
458 struct fsl_ep {
459 	struct usb_ep ep;
460 	struct list_head queue;
461 	struct fsl_udc *udc;
462 	struct ep_queue_head *qh;
463 	struct usb_gadget *gadget;
464 
465 	char name[14];
466 	unsigned stopped:1;
467 };
468 
469 #define EP_DIR_IN	1
470 #define EP_DIR_OUT	0
471 
472 struct fsl_udc {
473 	struct usb_gadget gadget;
474 	struct usb_gadget_driver *driver;
475 	struct fsl_usb2_platform_data *pdata;
476 	struct completion *done;	/* to make sure release() is done */
477 	struct fsl_ep *eps;
478 	unsigned int max_ep;
479 	unsigned int irq;
480 
481 	struct usb_ctrlrequest local_setup_buff;
482 	spinlock_t lock;
483 	struct usb_phy *transceiver;
484 	unsigned softconnect:1;
485 	unsigned vbus_active:1;
486 	unsigned stopped:1;
487 	unsigned remote_wakeup:1;
488 	unsigned already_stopped:1;
489 	unsigned big_endian_desc:1;
490 
491 	struct ep_queue_head *ep_qh;	/* Endpoints Queue-Head */
492 	struct fsl_req *status_req;	/* ep0 status request */
493 	struct dma_pool *td_pool;	/* dma pool for DTD */
494 	enum fsl_usb2_phy_modes phy_mode;
495 
496 	size_t ep_qh_size;		/* size after alignment adjustment*/
497 	dma_addr_t ep_qh_dma;		/* dma address of QH */
498 
499 	u32 max_pipes;          /* Device max pipes */
500 	u32 bus_reset;		/* Device is bus resetting */
501 	u32 resume_state;	/* USB state to resume */
502 	u32 usb_state;		/* USB current state */
503 	u32 ep0_state;		/* Endpoint zero state */
504 	u32 ep0_dir;		/* Endpoint zero direction: can be
505 				   USB_DIR_IN or USB_DIR_OUT */
506 	u8 device_address;	/* Device USB address */
507 };
508 
509 /*-------------------------------------------------------------------------*/
510 
511 #ifdef DEBUG
512 #define DBG(fmt, args...) 	printk(KERN_DEBUG "[%s]  " fmt "\n", \
513 				__func__, ## args)
514 #else
515 #define DBG(fmt, args...)	do{}while(0)
516 #endif
517 
518 #if 0
519 static void dump_msg(const char *label, const u8 * buf, unsigned int length)
520 {
521 	unsigned int start, num, i;
522 	char line[52], *p;
523 
524 	if (length >= 512)
525 		return;
526 	DBG("%s, length %u:\n", label, length);
527 	start = 0;
528 	while (length > 0) {
529 		num = min(length, 16u);
530 		p = line;
531 		for (i = 0; i < num; ++i) {
532 			if (i == 8)
533 				*p++ = ' ';
534 			sprintf(p, " %02x", buf[i]);
535 			p += 3;
536 		}
537 		*p = 0;
538 		printk(KERN_DEBUG "%6x: %s\n", start, line);
539 		buf += num;
540 		start += num;
541 		length -= num;
542 	}
543 }
544 #endif
545 
546 #ifdef VERBOSE
547 #define VDBG		DBG
548 #else
549 #define VDBG(stuff...)	do{}while(0)
550 #endif
551 
552 #define ERR(stuff...)		pr_err("udc: " stuff)
553 #define WARNING(stuff...)	pr_warn("udc: " stuff)
554 #define INFO(stuff...)		pr_info("udc: " stuff)
555 
556 /*-------------------------------------------------------------------------*/
557 
558 /* ### Add board specific defines here
559  */
560 
561 /*
562  * ### pipe direction macro from device view
563  */
564 #define USB_RECV	0	/* OUT EP */
565 #define USB_SEND	1	/* IN EP */
566 
567 /*
568  * ### internal used help routines.
569  */
570 #define ep_index(EP)		((EP)->ep.desc->bEndpointAddress&0xF)
571 #define ep_maxpacket(EP)	((EP)->ep.maxpacket)
572 #define ep_is_in(EP)	( (ep_index(EP) == 0) ? (EP->udc->ep0_dir == \
573 			USB_DIR_IN) : ((EP)->ep.desc->bEndpointAddress \
574 			& USB_DIR_IN)==USB_DIR_IN)
575 #define get_ep_by_pipe(udc, pipe)	((pipe == 1)? &udc->eps[0]: \
576 					&udc->eps[pipe])
577 #define get_pipe_by_windex(windex)	((windex & USB_ENDPOINT_NUMBER_MASK) \
578 					* 2 + ((windex & USB_DIR_IN) ? 1 : 0))
579 #define get_pipe_by_ep(EP)	(ep_index(EP) * 2 + ep_is_in(EP))
580 
581 static inline struct ep_queue_head *get_qh_by_ep(struct fsl_ep *ep)
582 {
583 	/* we only have one ep0 structure but two queue heads */
584 	if (ep_index(ep) != 0)
585 		return ep->qh;
586 	else
587 		return &ep->udc->ep_qh[(ep->udc->ep0_dir ==
588 				USB_DIR_IN) ? 1 : 0];
589 }
590 
591 #endif
592