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Source at commit be977234bfb4a6dca8a39e7c52165e4cd536ad71 created 12 years 9 months ago. By Lars-Peter Clausen, jz4740: Fix compile error | |
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1 | /* |
2 | * Copyright (C) 2005 Mike Lee(eemike@gmail.com) |
3 | * |
4 | * This udc driver is now under testing and code is based on pxa2xx_udc.h |
5 | * Please use it with your own risk! |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | */ |
17 | |
18 | #ifndef __LINUX_USB_GADGET_IMX_H |
19 | #define __LINUX_USB_GADGET_IMX_H |
20 | |
21 | #include <linux/types.h> |
22 | |
23 | /* Helper macros */ |
24 | #define EP_NO(ep) ((ep->bEndpointAddress) & ~USB_DIR_IN) /* IN:1, OUT:0 */ |
25 | #define EP_DIR(ep) ((ep->bEndpointAddress) & USB_DIR_IN ? 1 : 0) |
26 | #define IMX_USB_NB_EP 6 |
27 | |
28 | /* Driver structures */ |
29 | struct imx_request { |
30 | struct usb_request req; |
31 | struct list_head queue; |
32 | unsigned int in_use; |
33 | }; |
34 | |
35 | enum ep0_state { |
36 | EP0_IDLE, |
37 | EP0_IN_DATA_PHASE, |
38 | EP0_OUT_DATA_PHASE, |
39 | EP0_CONFIG, |
40 | EP0_STALL, |
41 | }; |
42 | |
43 | struct imx_ep_struct { |
44 | struct usb_ep ep; |
45 | struct imx_udc_struct *imx_usb; |
46 | struct list_head queue; |
47 | unsigned char stopped; |
48 | unsigned char fifosize; |
49 | unsigned char bEndpointAddress; |
50 | unsigned char bmAttributes; |
51 | }; |
52 | |
53 | struct imx_udc_struct { |
54 | struct usb_gadget gadget; |
55 | struct usb_gadget_driver *driver; |
56 | struct device *dev; |
57 | struct imx_ep_struct imx_ep[IMX_USB_NB_EP]; |
58 | struct clk *clk; |
59 | struct timer_list timer; |
60 | enum ep0_state ep0state; |
61 | struct resource *res; |
62 | void __iomem *base; |
63 | unsigned char set_config; |
64 | int cfg, |
65 | intf, |
66 | alt, |
67 | usbd_int[7]; |
68 | }; |
69 | |
70 | /* USB registers */ |
71 | #define USB_FRAME (0x00) /* USB frame */ |
72 | #define USB_SPEC (0x04) /* USB Spec */ |
73 | #define USB_STAT (0x08) /* USB Status */ |
74 | #define USB_CTRL (0x0C) /* USB Control */ |
75 | #define USB_DADR (0x10) /* USB Desc RAM addr */ |
76 | #define USB_DDAT (0x14) /* USB Desc RAM/EP buffer data */ |
77 | #define USB_INTR (0x18) /* USB interrupt */ |
78 | #define USB_MASK (0x1C) /* USB Mask */ |
79 | #define USB_ENAB (0x24) /* USB Enable */ |
80 | #define USB_EP_STAT(x) (0x30 + (x*0x30)) /* USB status/control */ |
81 | #define USB_EP_INTR(x) (0x34 + (x*0x30)) /* USB interrupt */ |
82 | #define USB_EP_MASK(x) (0x38 + (x*0x30)) /* USB mask */ |
83 | #define USB_EP_FDAT(x) (0x3C + (x*0x30)) /* USB FIFO data */ |
84 | #define USB_EP_FDAT0(x) (0x3C + (x*0x30)) /* USB FIFO data */ |
85 | #define USB_EP_FDAT1(x) (0x3D + (x*0x30)) /* USB FIFO data */ |
86 | #define USB_EP_FDAT2(x) (0x3E + (x*0x30)) /* USB FIFO data */ |
87 | #define USB_EP_FDAT3(x) (0x3F + (x*0x30)) /* USB FIFO data */ |
88 | #define USB_EP_FSTAT(x) (0x40 + (x*0x30)) /* USB FIFO status */ |
89 | #define USB_EP_FCTRL(x) (0x44 + (x*0x30)) /* USB FIFO control */ |
90 | #define USB_EP_LRFP(x) (0x48 + (x*0x30)) /* USB last rd f. pointer */ |
91 | #define USB_EP_LWFP(x) (0x4C + (x*0x30)) /* USB last wr f. pointer */ |
92 | #define USB_EP_FALRM(x) (0x50 + (x*0x30)) /* USB FIFO alarm */ |
93 | #define USB_EP_FRDP(x) (0x54 + (x*0x30)) /* USB FIFO read pointer */ |
94 | #define USB_EP_FWRP(x) (0x58 + (x*0x30)) /* USB FIFO write pointer */ |
95 | /* USB Control Register Bit Fields.*/ |
96 | #define CTRL_CMDOVER (1<<6) /* UDC status */ |
97 | #define CTRL_CMDERROR (1<<5) /* UDC status */ |
98 | #define CTRL_FE_ENA (1<<3) /* Enable Font End logic */ |
99 | #define CTRL_UDC_RST (1<<2) /* UDC reset */ |
100 | #define CTRL_AFE_ENA (1<<1) /* Analog Font end enable */ |
101 | #define CTRL_RESUME (1<<0) /* UDC resume */ |
102 | /* USB Status Register Bit Fields.*/ |
103 | #define STAT_RST (1<<8) |
104 | #define STAT_SUSP (1<<7) |
105 | #define STAT_CFG (3<<5) |
106 | #define STAT_INTF (3<<3) |
107 | #define STAT_ALTSET (7<<0) |
108 | /* USB Interrupt Status/Mask Registers Bit fields */ |
109 | #define INTR_WAKEUP (1<<31) /* Wake up Interrupt */ |
110 | #define INTR_MSOF (1<<7) /* Missed Start of Frame */ |
111 | #define INTR_SOF (1<<6) /* Start of Frame */ |
112 | #define INTR_RESET_STOP (1<<5) /* Reset Signaling stop */ |
113 | #define INTR_RESET_START (1<<4) /* Reset Signaling start */ |
114 | #define INTR_RESUME (1<<3) /* Suspend to resume */ |
115 | #define INTR_SUSPEND (1<<2) /* Active to suspend */ |
116 | #define INTR_FRAME_MATCH (1<<1) /* Frame matched */ |
117 | #define INTR_CFG_CHG (1<<0) /* Configuration change occurred */ |
118 | /* USB Enable Register Bit Fields.*/ |
119 | #define ENAB_RST (1<<31) /* Reset USB modules */ |
120 | #define ENAB_ENAB (1<<30) /* Enable USB modules*/ |
121 | #define ENAB_SUSPEND (1<<29) /* Suspend USB modules */ |
122 | #define ENAB_ENDIAN (1<<28) /* Endian of USB modules */ |
123 | #define ENAB_PWRMD (1<<0) /* Power mode of USB modules */ |
124 | /* USB Descriptor Ram Address Register bit fields */ |
125 | #define DADR_CFG (1<<31) /* Configuration */ |
126 | #define DADR_BSY (1<<30) /* Busy status */ |
127 | #define DADR_DADR (0x1FF) /* Descriptor Ram Address */ |
128 | /* USB Descriptor RAM/Endpoint Buffer Data Register bit fields */ |
129 | #define DDAT_DDAT (0xFF) /* Descriptor Endpoint Buffer */ |
130 | /* USB Endpoint Status Register bit fields */ |
131 | #define EPSTAT_BCOUNT (0x7F<<16) /* Endpoint FIFO byte count */ |
132 | #define EPSTAT_SIP (1<<8) /* Endpoint setup in progress */ |
133 | #define EPSTAT_DIR (1<<7) /* Endpoint transfer direction */ |
134 | #define EPSTAT_MAX (3<<5) /* Endpoint Max packet size */ |
135 | #define EPSTAT_TYP (3<<3) /* Endpoint type */ |
136 | #define EPSTAT_ZLPS (1<<2) /* Send zero length packet */ |
137 | #define EPSTAT_FLUSH (1<<1) /* Endpoint FIFO Flush */ |
138 | #define EPSTAT_STALL (1<<0) /* Force stall */ |
139 | /* USB Endpoint FIFO Status Register bit fields */ |
140 | #define FSTAT_FRAME_STAT (0xF<<24) /* Frame status bit [0-3] */ |
141 | #define FSTAT_ERR (1<<22) /* FIFO error */ |
142 | #define FSTAT_UF (1<<21) /* FIFO underflow */ |
143 | #define FSTAT_OF (1<<20) /* FIFO overflow */ |
144 | #define FSTAT_FR (1<<19) /* FIFO frame ready */ |
145 | #define FSTAT_FULL (1<<18) /* FIFO full */ |
146 | #define FSTAT_ALRM (1<<17) /* FIFO alarm */ |
147 | #define FSTAT_EMPTY (1<<16) /* FIFO empty */ |
148 | /* USB Endpoint FIFO Control Register bit fields */ |
149 | #define FCTRL_WFR (1<<29) /* Write frame end */ |
150 | /* USB Endpoint Interrupt Status Regsiter bit fields */ |
151 | #define EPINTR_FIFO_FULL (1<<8) /* fifo full */ |
152 | #define EPINTR_FIFO_EMPTY (1<<7) /* fifo empty */ |
153 | #define EPINTR_FIFO_ERROR (1<<6) /* fifo error */ |
154 | #define EPINTR_FIFO_HIGH (1<<5) /* fifo high */ |
155 | #define EPINTR_FIFO_LOW (1<<4) /* fifo low */ |
156 | #define EPINTR_MDEVREQ (1<<3) /* multi Device request */ |
157 | #define EPINTR_EOT (1<<2) /* fifo end of transfer */ |
158 | #define EPINTR_DEVREQ (1<<1) /* Device request */ |
159 | #define EPINTR_EOF (1<<0) /* fifo end of frame */ |
160 | |
161 | /* Debug macros */ |
162 | #ifdef DEBUG |
163 | |
164 | /* #define DEBUG_REQ */ |
165 | /* #define DEBUG_TRX */ |
166 | /* #define DEBUG_INIT */ |
167 | /* #define DEBUG_EP0 */ |
168 | /* #define DEBUG_EPX */ |
169 | /* #define DEBUG_IRQ */ |
170 | /* #define DEBUG_EPIRQ */ |
171 | /* #define DEBUG_DUMP */ |
172 | /* #define DEBUG_ERR */ |
173 | |
174 | #ifdef DEBUG_REQ |
175 | #define D_REQ(dev, args...) dev_dbg(dev, ## args) |
176 | #else |
177 | #define D_REQ(dev, args...) do {} while (0) |
178 | #endif /* DEBUG_REQ */ |
179 | |
180 | #ifdef DEBUG_TRX |
181 | #define D_TRX(dev, args...) dev_dbg(dev, ## args) |
182 | #else |
183 | #define D_TRX(dev, args...) do {} while (0) |
184 | #endif /* DEBUG_TRX */ |
185 | |
186 | #ifdef DEBUG_INIT |
187 | #define D_INI(dev, args...) dev_dbg(dev, ## args) |
188 | #else |
189 | #define D_INI(dev, args...) do {} while (0) |
190 | #endif /* DEBUG_INIT */ |
191 | |
192 | #ifdef DEBUG_EP0 |
193 | static const char *state_name[] = { |
194 | "EP0_IDLE", |
195 | "EP0_IN_DATA_PHASE", |
196 | "EP0_OUT_DATA_PHASE", |
197 | "EP0_CONFIG", |
198 | "EP0_STALL" |
199 | }; |
200 | #define D_EP0(dev, args...) dev_dbg(dev, ## args) |
201 | #else |
202 | #define D_EP0(dev, args...) do {} while (0) |
203 | #endif /* DEBUG_EP0 */ |
204 | |
205 | #ifdef DEBUG_EPX |
206 | #define D_EPX(dev, args...) dev_dbg(dev, ## args) |
207 | #else |
208 | #define D_EPX(dev, args...) do {} while (0) |
209 | #endif /* DEBUG_EP0 */ |
210 | |
211 | #ifdef DEBUG_IRQ |
212 | static void dump_intr(const char *label, int irqreg, struct device *dev) |
213 | { |
214 | dev_dbg(dev, "<%s> USB_INTR=[%s%s%s%s%s%s%s%s%s]\n", label, |
215 | (irqreg & INTR_WAKEUP) ? " wake" : "", |
216 | (irqreg & INTR_MSOF) ? " msof" : "", |
217 | (irqreg & INTR_SOF) ? " sof" : "", |
218 | (irqreg & INTR_RESUME) ? " resume" : "", |
219 | (irqreg & INTR_SUSPEND) ? " suspend" : "", |
220 | (irqreg & INTR_RESET_STOP) ? " noreset" : "", |
221 | (irqreg & INTR_RESET_START) ? " reset" : "", |
222 | (irqreg & INTR_FRAME_MATCH) ? " fmatch" : "", |
223 | (irqreg & INTR_CFG_CHG) ? " config" : ""); |
224 | } |
225 | #else |
226 | #define dump_intr(x, y, z) do {} while (0) |
227 | #endif /* DEBUG_IRQ */ |
228 | |
229 | #ifdef DEBUG_EPIRQ |
230 | static void dump_ep_intr(const char *label, int nr, int irqreg, |
231 | struct device *dev) |
232 | { |
233 | dev_dbg(dev, "<%s> EP%d_INTR=[%s%s%s%s%s%s%s%s%s]\n", label, nr, |
234 | (irqreg & EPINTR_FIFO_FULL) ? " full" : "", |
235 | (irqreg & EPINTR_FIFO_EMPTY) ? " fempty" : "", |
236 | (irqreg & EPINTR_FIFO_ERROR) ? " ferr" : "", |
237 | (irqreg & EPINTR_FIFO_HIGH) ? " fhigh" : "", |
238 | (irqreg & EPINTR_FIFO_LOW) ? " flow" : "", |
239 | (irqreg & EPINTR_MDEVREQ) ? " mreq" : "", |
240 | (irqreg & EPINTR_EOF) ? " eof" : "", |
241 | (irqreg & EPINTR_DEVREQ) ? " devreq" : "", |
242 | (irqreg & EPINTR_EOT) ? " eot" : ""); |
243 | } |
244 | #else |
245 | #define dump_ep_intr(x, y, z, i) do {} while (0) |
246 | #endif /* DEBUG_IRQ */ |
247 | |
248 | #ifdef DEBUG_DUMP |
249 | static void dump_usb_stat(const char *label, |
250 | struct imx_udc_struct *imx_usb) |
251 | { |
252 | int temp = __raw_readl(imx_usb->base + USB_STAT); |
253 | |
254 | dev_dbg(imx_usb->dev, |
255 | "<%s> USB_STAT=[%s%s CFG=%d, INTF=%d, ALTR=%d]\n", label, |
256 | (temp & STAT_RST) ? " reset" : "", |
257 | (temp & STAT_SUSP) ? " suspend" : "", |
258 | (temp & STAT_CFG) >> 5, |
259 | (temp & STAT_INTF) >> 3, |
260 | (temp & STAT_ALTSET)); |
261 | } |
262 | |
263 | static void dump_ep_stat(const char *label, |
264 | struct imx_ep_struct *imx_ep) |
265 | { |
266 | int temp = __raw_readl(imx_ep->imx_usb->base |
267 | + USB_EP_INTR(EP_NO(imx_ep))); |
268 | |
269 | dev_dbg(imx_ep->imx_usb->dev, |
270 | "<%s> EP%d_INTR=[%s%s%s%s%s%s%s%s%s]\n", |
271 | label, EP_NO(imx_ep), |
272 | (temp & EPINTR_FIFO_FULL) ? " full" : "", |
273 | (temp & EPINTR_FIFO_EMPTY) ? " fempty" : "", |
274 | (temp & EPINTR_FIFO_ERROR) ? " ferr" : "", |
275 | (temp & EPINTR_FIFO_HIGH) ? " fhigh" : "", |
276 | (temp & EPINTR_FIFO_LOW) ? " flow" : "", |
277 | (temp & EPINTR_MDEVREQ) ? " mreq" : "", |
278 | (temp & EPINTR_EOF) ? " eof" : "", |
279 | (temp & EPINTR_DEVREQ) ? " devreq" : "", |
280 | (temp & EPINTR_EOT) ? " eot" : ""); |
281 | |
282 | temp = __raw_readl(imx_ep->imx_usb->base |
283 | + USB_EP_STAT(EP_NO(imx_ep))); |
284 | |
285 | dev_dbg(imx_ep->imx_usb->dev, |
286 | "<%s> EP%d_STAT=[%s%s bcount=%d]\n", |
287 | label, EP_NO(imx_ep), |
288 | (temp & EPSTAT_SIP) ? " sip" : "", |
289 | (temp & EPSTAT_STALL) ? " stall" : "", |
290 | (temp & EPSTAT_BCOUNT) >> 16); |
291 | |
292 | temp = __raw_readl(imx_ep->imx_usb->base |
293 | + USB_EP_FSTAT(EP_NO(imx_ep))); |
294 | |
295 | dev_dbg(imx_ep->imx_usb->dev, |
296 | "<%s> EP%d_FSTAT=[%s%s%s%s%s%s%s]\n", |
297 | label, EP_NO(imx_ep), |
298 | (temp & FSTAT_ERR) ? " ferr" : "", |
299 | (temp & FSTAT_UF) ? " funder" : "", |
300 | (temp & FSTAT_OF) ? " fover" : "", |
301 | (temp & FSTAT_FR) ? " fready" : "", |
302 | (temp & FSTAT_FULL) ? " ffull" : "", |
303 | (temp & FSTAT_ALRM) ? " falarm" : "", |
304 | (temp & FSTAT_EMPTY) ? " fempty" : ""); |
305 | } |
306 | |
307 | static void dump_req(const char *label, struct imx_ep_struct *imx_ep, |
308 | struct usb_request *req) |
309 | { |
310 | int i; |
311 | |
312 | if (!req || !req->buf) { |
313 | dev_dbg(imx_ep->imx_usb->dev, |
314 | "<%s> req or req buf is free\n", label); |
315 | return; |
316 | } |
317 | |
318 | if ((!EP_NO(imx_ep) && imx_ep->imx_usb->ep0state |
319 | == EP0_IN_DATA_PHASE) |
320 | || (EP_NO(imx_ep) && EP_DIR(imx_ep))) { |
321 | |
322 | dev_dbg(imx_ep->imx_usb->dev, |
323 | "<%s> request dump <", label); |
324 | for (i = 0; i < req->length; i++) |
325 | printk("%02x-", *((u8 *)req->buf + i)); |
326 | printk(">\n"); |
327 | } |
328 | } |
329 | |
330 | #else |
331 | #define dump_ep_stat(x, y) do {} while (0) |
332 | #define dump_usb_stat(x, y) do {} while (0) |
333 | #define dump_req(x, y, z) do {} while (0) |
334 | #endif /* DEBUG_DUMP */ |
335 | |
336 | #ifdef DEBUG_ERR |
337 | #define D_ERR(dev, args...) dev_dbg(dev, ## args) |
338 | #else |
339 | #define D_ERR(dev, args...) do {} while (0) |
340 | #endif |
341 | |
342 | #else |
343 | #define D_REQ(dev, args...) do {} while (0) |
344 | #define D_TRX(dev, args...) do {} while (0) |
345 | #define D_INI(dev, args...) do {} while (0) |
346 | #define D_EP0(dev, args...) do {} while (0) |
347 | #define D_EPX(dev, args...) do {} while (0) |
348 | #define dump_ep_intr(x, y, z, i) do {} while (0) |
349 | #define dump_intr(x, y, z) do {} while (0) |
350 | #define dump_ep_stat(x, y) do {} while (0) |
351 | #define dump_usb_stat(x, y) do {} while (0) |
352 | #define dump_req(x, y, z) do {} while (0) |
353 | #define D_ERR(dev, args...) do {} while (0) |
354 | #endif /* DEBUG */ |
355 | |
356 | #endif /* __LINUX_USB_GADGET_IMX_H */ |
357 |
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