Commit | Line | Data |
---|---|---|
3948f0e0 LY |
1 | /* |
2 | * drivers/usb/gadget/qe_udc.h | |
3 | * | |
4 | * Copyright (C) 2006-2008 Freescale Semiconductor, Inc. All rights reserved. | |
5 | * | |
6 | * Xiaobo Xie <X.Xie@freescale.com> | |
7 | * Li Yang <leoli@freescale.com> | |
8 | * | |
9 | * Description: | |
10 | * Freescale USB device/endpoint management registers | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or (at | |
15 | * your option) any later version. | |
16 | */ | |
17 | ||
18 | #ifndef __FSL_QE_UDC_H | |
19 | #define __FSL_QE_UDC_H | |
20 | ||
21 | /* SoC type */ | |
22 | #define PORT_CPM 0 | |
23 | #define PORT_QE 1 | |
24 | ||
25 | #define USB_MAX_ENDPOINTS 4 | |
26 | #define USB_MAX_PIPES USB_MAX_ENDPOINTS | |
27 | #define USB_EP0_MAX_SIZE 64 | |
28 | #define USB_MAX_CTRL_PAYLOAD 0x4000 | |
29 | #define USB_BDRING_LEN 16 | |
30 | #define USB_BDRING_LEN_RX 256 | |
31 | #define USB_BDRING_LEN_TX 16 | |
32 | #define MIN_EMPTY_BDS 128 | |
33 | #define MAX_DATA_BDS 8 | |
34 | #define USB_CRC_SIZE 2 | |
35 | #define USB_DIR_BOTH 0x88 | |
36 | #define R_BUF_MAXSIZE 0x800 | |
37 | #define USB_EP_PARA_ALIGNMENT 32 | |
38 | ||
39 | /* USB Mode Register bit define */ | |
40 | #define USB_MODE_EN 0x01 | |
41 | #define USB_MODE_HOST 0x02 | |
42 | #define USB_MODE_TEST 0x04 | |
43 | #define USB_MODE_SFTE 0x08 | |
44 | #define USB_MODE_RESUME 0x40 | |
45 | #define USB_MODE_LSS 0x80 | |
46 | ||
47 | /* USB Slave Address Register Mask */ | |
48 | #define USB_SLVADDR_MASK 0x7F | |
49 | ||
50 | /* USB Endpoint register define */ | |
51 | #define USB_EPNUM_MASK 0xF000 | |
52 | #define USB_EPNUM_SHIFT 12 | |
53 | ||
54 | #define USB_TRANS_MODE_SHIFT 8 | |
55 | #define USB_TRANS_CTR 0x0000 | |
56 | #define USB_TRANS_INT 0x0100 | |
57 | #define USB_TRANS_BULK 0x0200 | |
58 | #define USB_TRANS_ISO 0x0300 | |
59 | ||
60 | #define USB_EP_MF 0x0020 | |
61 | #define USB_EP_RTE 0x0010 | |
62 | ||
63 | #define USB_THS_SHIFT 2 | |
64 | #define USB_THS_MASK 0x000c | |
65 | #define USB_THS_NORMAL 0x0 | |
66 | #define USB_THS_IGNORE_IN 0x0004 | |
67 | #define USB_THS_NACK 0x0008 | |
68 | #define USB_THS_STALL 0x000c | |
69 | ||
70 | #define USB_RHS_SHIFT 0 | |
71 | #define USB_RHS_MASK 0x0003 | |
72 | #define USB_RHS_NORMAL 0x0 | |
73 | #define USB_RHS_IGNORE_OUT 0x0001 | |
74 | #define USB_RHS_NACK 0x0002 | |
75 | #define USB_RHS_STALL 0x0003 | |
76 | ||
77 | #define USB_RTHS_MASK 0x000f | |
78 | ||
79 | /* USB Command Register define */ | |
80 | #define USB_CMD_STR_FIFO 0x80 | |
81 | #define USB_CMD_FLUSH_FIFO 0x40 | |
82 | #define USB_CMD_ISFT 0x20 | |
83 | #define USB_CMD_DSFT 0x10 | |
84 | #define USB_CMD_EP_MASK 0x03 | |
85 | ||
86 | /* USB Event and Mask Register define */ | |
87 | #define USB_E_MSF_MASK 0x0800 | |
88 | #define USB_E_SFT_MASK 0x0400 | |
89 | #define USB_E_RESET_MASK 0x0200 | |
90 | #define USB_E_IDLE_MASK 0x0100 | |
91 | #define USB_E_TXE4_MASK 0x0080 | |
92 | #define USB_E_TXE3_MASK 0x0040 | |
93 | #define USB_E_TXE2_MASK 0x0020 | |
94 | #define USB_E_TXE1_MASK 0x0010 | |
95 | #define USB_E_SOF_MASK 0x0008 | |
96 | #define USB_E_BSY_MASK 0x0004 | |
97 | #define USB_E_TXB_MASK 0x0002 | |
98 | #define USB_E_RXB_MASK 0x0001 | |
99 | #define USBER_ALL_CLEAR 0x0fff | |
100 | ||
101 | #define USB_E_DEFAULT_DEVICE (USB_E_RESET_MASK | USB_E_TXE4_MASK | \ | |
102 | USB_E_TXE3_MASK | USB_E_TXE2_MASK | \ | |
103 | USB_E_TXE1_MASK | USB_E_BSY_MASK | \ | |
104 | USB_E_TXB_MASK | USB_E_RXB_MASK) | |
105 | ||
106 | #define USB_E_TXE_MASK (USB_E_TXE4_MASK | USB_E_TXE3_MASK|\ | |
107 | USB_E_TXE2_MASK | USB_E_TXE1_MASK) | |
108 | /* USB Status Register define */ | |
109 | #define USB_IDLE_STATUS_MASK 0x01 | |
110 | ||
111 | /* USB Start of Frame Timer */ | |
112 | #define USB_USSFT_MASK 0x3FFF | |
113 | ||
114 | /* USB Frame Number Register */ | |
115 | #define USB_USFRN_MASK 0xFFFF | |
116 | ||
117 | struct usb_device_para{ | |
118 | u16 epptr[4]; | |
119 | u32 rstate; | |
120 | u32 rptr; | |
121 | u16 frame_n; | |
122 | u16 rbcnt; | |
123 | u32 rtemp; | |
124 | u32 rxusb_data; | |
125 | u16 rxuptr; | |
126 | u8 reso[2]; | |
127 | u32 softbl; | |
128 | u8 sofucrctemp; | |
129 | }; | |
130 | ||
131 | struct usb_ep_para{ | |
132 | u16 rbase; | |
133 | u16 tbase; | |
134 | u8 rbmr; | |
135 | u8 tbmr; | |
136 | u16 mrblr; | |
137 | u16 rbptr; | |
138 | u16 tbptr; | |
139 | u32 tstate; | |
140 | u32 tptr; | |
141 | u16 tcrc; | |
142 | u16 tbcnt; | |
143 | u32 ttemp; | |
144 | u16 txusbu_ptr; | |
145 | u8 reserve[2]; | |
146 | }; | |
147 | ||
148 | #define USB_BUSMODE_GBL 0x20 | |
149 | #define USB_BUSMODE_BO_MASK 0x18 | |
150 | #define USB_BUSMODE_BO_SHIFT 0x3 | |
151 | #define USB_BUSMODE_BE 0x2 | |
152 | #define USB_BUSMODE_CETM 0x04 | |
153 | #define USB_BUSMODE_DTB 0x02 | |
154 | ||
155 | /* Endpoint basic handle */ | |
156 | #define ep_index(EP) ((EP)->desc->bEndpointAddress & 0xF) | |
157 | #define ep_maxpacket(EP) ((EP)->ep.maxpacket) | |
158 | #define ep_is_in(EP) ((ep_index(EP) == 0) ? (EP->udc->ep0_dir == \ | |
159 | USB_DIR_IN) : ((EP)->desc->bEndpointAddress \ | |
160 | & USB_DIR_IN) == USB_DIR_IN) | |
161 | ||
162 | /* ep0 transfer state */ | |
163 | #define WAIT_FOR_SETUP 0 | |
164 | #define DATA_STATE_XMIT 1 | |
165 | #define DATA_STATE_NEED_ZLP 2 | |
166 | #define WAIT_FOR_OUT_STATUS 3 | |
167 | #define DATA_STATE_RECV 4 | |
168 | ||
169 | /* ep tramsfer mode */ | |
170 | #define USBP_TM_CTL 0 | |
171 | #define USBP_TM_ISO 1 | |
172 | #define USBP_TM_BULK 2 | |
173 | #define USBP_TM_INT 3 | |
174 | ||
175 | /*----------------------------------------------------------------------------- | |
176 | USB RX And TX DATA Frame | |
177 | -----------------------------------------------------------------------------*/ | |
178 | struct qe_frame{ | |
179 | u8 *data; | |
180 | u32 len; | |
181 | u32 status; | |
182 | u32 info; | |
183 | ||
184 | void *privdata; | |
185 | struct list_head node; | |
186 | }; | |
187 | ||
188 | /* Frame structure, info field. */ | |
189 | #define PID_DATA0 0x80000000 /* Data toggle zero */ | |
190 | #define PID_DATA1 0x40000000 /* Data toggle one */ | |
191 | #define PID_SETUP 0x20000000 /* setup bit */ | |
192 | #define SETUP_STATUS 0x10000000 /* setup status bit */ | |
193 | #define SETADDR_STATUS 0x08000000 /* setupup address status bit */ | |
194 | #define NO_REQ 0x04000000 /* Frame without request */ | |
195 | #define HOST_DATA 0x02000000 /* Host data frame */ | |
196 | #define FIRST_PACKET_IN_FRAME 0x01000000 /* first packet in the frame */ | |
197 | #define TOKEN_FRAME 0x00800000 /* Host token frame */ | |
198 | #define ZLP 0x00400000 /* Zero length packet */ | |
199 | #define IN_TOKEN_FRAME 0x00200000 /* In token package */ | |
200 | #define OUT_TOKEN_FRAME 0x00100000 /* Out token package */ | |
201 | #define SETUP_TOKEN_FRAME 0x00080000 /* Setup token package */ | |
202 | #define STALL_FRAME 0x00040000 /* Stall handshake */ | |
203 | #define NACK_FRAME 0x00020000 /* Nack handshake */ | |
204 | #define NO_PID 0x00010000 /* No send PID */ | |
205 | #define NO_CRC 0x00008000 /* No send CRC */ | |
206 | #define HOST_COMMAND 0x00004000 /* Host command frame */ | |
207 | ||
208 | /* Frame status field */ | |
209 | /* Receive side */ | |
210 | #define FRAME_OK 0x00000000 /* Frame tranmitted or received OK */ | |
211 | #define FRAME_ERROR 0x80000000 /* Error occured on frame */ | |
212 | #define START_FRAME_LOST 0x40000000 /* START_FRAME_LOST */ | |
213 | #define END_FRAME_LOST 0x20000000 /* END_FRAME_LOST */ | |
214 | #define RX_ER_NONOCT 0x10000000 /* Rx Non Octet Aligned Packet */ | |
215 | #define RX_ER_BITSTUFF 0x08000000 /* Frame Aborted --Received packet | |
216 | with bit stuff error */ | |
217 | #define RX_ER_CRC 0x04000000 /* Received packet with CRC error */ | |
218 | #define RX_ER_OVERUN 0x02000000 /* Over-run occured on reception */ | |
219 | #define RX_ER_PID 0x01000000 /* Wrong PID received */ | |
220 | /* Tranmit side */ | |
221 | #define TX_ER_NAK 0x00800000 /* Received NAK handshake */ | |
222 | #define TX_ER_STALL 0x00400000 /* Received STALL handshake */ | |
223 | #define TX_ER_TIMEOUT 0x00200000 /* Transmit time out */ | |
224 | #define TX_ER_UNDERUN 0x00100000 /* Transmit underrun */ | |
225 | #define FRAME_INPROGRESS 0x00080000 /* Frame is being transmitted */ | |
226 | #define ER_DATA_UNDERUN 0x00040000 /* Frame is shorter then expected */ | |
227 | #define ER_DATA_OVERUN 0x00020000 /* Frame is longer then expected */ | |
228 | ||
229 | /* QE USB frame operation functions */ | |
230 | #define frame_get_length(frm) (frm->len) | |
231 | #define frame_set_length(frm, leng) (frm->len = leng) | |
232 | #define frame_get_data(frm) (frm->data) | |
233 | #define frame_set_data(frm, dat) (frm->data = dat) | |
234 | #define frame_get_info(frm) (frm->info) | |
235 | #define frame_set_info(frm, inf) (frm->info = inf) | |
236 | #define frame_get_status(frm) (frm->status) | |
237 | #define frame_set_status(frm, stat) (frm->status = stat) | |
238 | #define frame_get_privdata(frm) (frm->privdata) | |
239 | #define frame_set_privdata(frm, dat) (frm->privdata = dat) | |
240 | ||
241 | static inline void qe_frame_clean(struct qe_frame *frm) | |
242 | { | |
243 | frame_set_data(frm, NULL); | |
244 | frame_set_length(frm, 0); | |
245 | frame_set_status(frm, FRAME_OK); | |
246 | frame_set_info(frm, 0); | |
247 | frame_set_privdata(frm, NULL); | |
248 | } | |
249 | ||
250 | static inline void qe_frame_init(struct qe_frame *frm) | |
251 | { | |
252 | qe_frame_clean(frm); | |
253 | INIT_LIST_HEAD(&(frm->node)); | |
254 | } | |
255 | ||
256 | struct qe_req { | |
257 | struct usb_request req; | |
258 | struct list_head queue; | |
259 | /* ep_queue() func will add | |
260 | a request->queue into a udc_ep->queue 'd tail */ | |
261 | struct qe_ep *ep; | |
262 | unsigned mapped:1; | |
263 | }; | |
264 | ||
265 | struct qe_ep { | |
266 | struct usb_ep ep; | |
267 | struct list_head queue; | |
268 | struct qe_udc *udc; | |
269 | const struct usb_endpoint_descriptor *desc; | |
270 | struct usb_gadget *gadget; | |
271 | ||
272 | u8 state; | |
273 | ||
274 | struct qe_bd __iomem *rxbase; | |
275 | struct qe_bd __iomem *n_rxbd; | |
276 | struct qe_bd __iomem *e_rxbd; | |
277 | ||
278 | struct qe_bd __iomem *txbase; | |
279 | struct qe_bd __iomem *n_txbd; | |
280 | struct qe_bd __iomem *c_txbd; | |
281 | ||
282 | struct qe_frame *rxframe; | |
283 | u8 *rxbuffer; | |
284 | dma_addr_t rxbuf_d; | |
285 | u8 rxbufmap; | |
286 | unsigned char localnack; | |
287 | int has_data; | |
288 | ||
289 | struct qe_frame *txframe; | |
290 | struct qe_req *tx_req; | |
291 | int sent; /*data already sent */ | |
292 | int last; /*data sent in the last time*/ | |
293 | ||
294 | u8 dir; | |
295 | u8 epnum; | |
296 | u8 tm; /* transfer mode */ | |
297 | u8 data01; | |
298 | u8 init; | |
299 | ||
300 | u8 already_seen; | |
301 | u8 enable_tasklet; | |
302 | u8 setup_stage; | |
303 | u32 last_io; /* timestamp */ | |
304 | ||
305 | char name[14]; | |
306 | ||
307 | unsigned double_buf:1; | |
308 | unsigned stopped:1; | |
309 | unsigned fnf:1; | |
310 | unsigned has_dma:1; | |
311 | ||
312 | u8 ackwait; | |
313 | u8 dma_channel; | |
314 | u16 dma_counter; | |
315 | int lch; | |
316 | ||
317 | struct timer_list timer; | |
318 | }; | |
319 | ||
320 | struct qe_udc { | |
321 | struct usb_gadget gadget; | |
322 | struct usb_gadget_driver *driver; | |
323 | struct device *dev; | |
324 | struct qe_ep eps[USB_MAX_ENDPOINTS]; | |
325 | struct usb_ctrlrequest local_setup_buff; | |
326 | spinlock_t lock; /* lock for set/config qe_udc */ | |
327 | unsigned long soc_type; /* QE or CPM soc */ | |
328 | ||
329 | struct qe_req *status_req; /* ep0 status request */ | |
330 | ||
331 | /* USB and EP Parameter Block pointer */ | |
332 | struct usb_device_para __iomem *usb_param; | |
333 | struct usb_ep_para __iomem *ep_param[4]; | |
334 | ||
335 | u32 max_pipes; /* Device max pipes */ | |
336 | u32 max_use_endpts; /* Max endpointes to be used */ | |
337 | u32 bus_reset; /* Device is bus reseting */ | |
338 | u32 resume_state; /* USB state to resume*/ | |
339 | u32 usb_state; /* USB current state */ | |
340 | u32 usb_next_state; /* USB next state */ | |
341 | u32 ep0_state; /* Enpoint zero state */ | |
342 | u32 ep0_dir; /* Enpoint zero direction: can be | |
343 | USB_DIR_IN or USB_DIR_OUT*/ | |
344 | u32 usb_sof_count; /* SOF count */ | |
345 | u32 errors; /* USB ERRORs count */ | |
346 | ||
347 | u8 *tmpbuf; | |
348 | u32 c_start; | |
349 | u32 c_end; | |
350 | ||
351 | u8 *nullbuf; | |
928dfa6c | 352 | u8 *statusbuf; |
3948f0e0 LY |
353 | dma_addr_t nullp; |
354 | u8 nullmap; | |
355 | u8 device_address; /* Device USB address */ | |
356 | ||
357 | unsigned int usb_clock; | |
358 | unsigned int usb_irq; | |
359 | struct usb_ctlr __iomem *usb_regs; | |
360 | ||
361 | struct tasklet_struct rx_tasklet; | |
362 | ||
363 | struct completion *done; /* to make sure release() is done */ | |
364 | }; | |
365 | ||
366 | #define EP_STATE_IDLE 0 | |
367 | #define EP_STATE_NACK 1 | |
368 | #define EP_STATE_STALL 2 | |
369 | ||
370 | /* | |
371 | * transmit BD's status | |
372 | */ | |
373 | #define T_R 0x80000000 /* ready bit */ | |
374 | #define T_W 0x20000000 /* wrap bit */ | |
375 | #define T_I 0x10000000 /* interrupt on completion */ | |
376 | #define T_L 0x08000000 /* last */ | |
377 | #define T_TC 0x04000000 /* transmit CRC */ | |
378 | #define T_CNF 0x02000000 /* wait for transmit confirm */ | |
379 | #define T_LSP 0x01000000 /* Low-speed transaction */ | |
380 | #define T_PID 0x00c00000 /* packet id */ | |
381 | #define T_NAK 0x00100000 /* No ack. */ | |
382 | #define T_STAL 0x00080000 /* Stall recieved */ | |
383 | #define T_TO 0x00040000 /* time out */ | |
384 | #define T_UN 0x00020000 /* underrun */ | |
385 | ||
386 | #define DEVICE_T_ERROR (T_UN | T_TO) | |
387 | #define HOST_T_ERROR (T_UN | T_TO | T_NAK | T_STAL) | |
388 | #define DEVICE_T_BD_MASK DEVICE_T_ERROR | |
389 | #define HOST_T_BD_MASK HOST_T_ERROR | |
390 | ||
391 | #define T_PID_SHIFT 6 | |
392 | #define T_PID_DATA0 0x00800000 /* Data 0 toggle */ | |
393 | #define T_PID_DATA1 0x00c00000 /* Data 1 toggle */ | |
394 | ||
395 | /* | |
396 | * receive BD's status | |
397 | */ | |
398 | #define R_E 0x80000000 /* buffer empty */ | |
399 | #define R_W 0x20000000 /* wrap bit */ | |
400 | #define R_I 0x10000000 /* interrupt on reception */ | |
401 | #define R_L 0x08000000 /* last */ | |
402 | #define R_F 0x04000000 /* first */ | |
403 | #define R_PID 0x00c00000 /* packet id */ | |
404 | #define R_NO 0x00100000 /* Rx Non Octet Aligned Packet */ | |
405 | #define R_AB 0x00080000 /* Frame Aborted */ | |
406 | #define R_CR 0x00040000 /* CRC Error */ | |
407 | #define R_OV 0x00020000 /* Overrun */ | |
408 | ||
409 | #define R_ERROR (R_NO | R_AB | R_CR | R_OV) | |
410 | #define R_BD_MASK R_ERROR | |
411 | ||
412 | #define R_PID_DATA0 0x00000000 | |
413 | #define R_PID_DATA1 0x00400000 | |
414 | #define R_PID_SETUP 0x00800000 | |
415 | ||
416 | #define CPM_USB_STOP_TX 0x2e600000 | |
417 | #define CPM_USB_RESTART_TX 0x2e600000 | |
418 | #define CPM_USB_STOP_TX_OPCODE 0x0a | |
419 | #define CPM_USB_RESTART_TX_OPCODE 0x0b | |
420 | #define CPM_USB_EP_SHIFT 5 | |
421 | ||
3948f0e0 | 422 | #endif /* __FSL_QE_UDC_H */ |