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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0+ |
55d402d8 TD |
2 | /* |
3 | * amd5536.h -- header for AMD 5536 UDC high/full speed USB device controller | |
4 | * | |
5 | * Copyright (C) 2007 AMD (http://www.amd.com) | |
6 | * Author: Thomas Dahlmann | |
55d402d8 TD |
7 | */ |
8 | ||
9 | #ifndef AMD5536UDC_H | |
10 | #define AMD5536UDC_H | |
11 | ||
97b3ffa2 RG |
12 | /* debug control */ |
13 | /* #define UDC_VERBOSE */ | |
14 | ||
1b9f35ad | 15 | #include <linux/extcon.h> |
97b3ffa2 RG |
16 | #include <linux/usb/ch9.h> |
17 | #include <linux/usb/gadget.h> | |
18 | ||
55d402d8 TD |
19 | /* various constants */ |
20 | #define UDC_RDE_TIMER_SECONDS 1 | |
21 | #define UDC_RDE_TIMER_DIV 10 | |
22 | #define UDC_POLLSTALL_TIMER_USECONDS 500 | |
23 | ||
24 | /* Hs AMD5536 chip rev. */ | |
25 | #define UDC_HSA0_REV 1 | |
26 | #define UDC_HSB1_REV 2 | |
27 | ||
1b9f35ad RG |
28 | /* Broadcom chip rev. */ |
29 | #define UDC_BCM_REV 10 | |
30 | ||
55d402d8 TD |
31 | /* |
32 | * SETUP usb commands | |
33 | * needed, because some SETUP's are handled in hw, but must be passed to | |
34 | * gadget driver above | |
35 | * SET_CONFIG | |
36 | */ | |
37 | #define UDC_SETCONFIG_DWORD0 0x00000900 | |
38 | #define UDC_SETCONFIG_DWORD0_VALUE_MASK 0xffff0000 | |
39 | #define UDC_SETCONFIG_DWORD0_VALUE_OFS 16 | |
40 | ||
41 | #define UDC_SETCONFIG_DWORD1 0x00000000 | |
42 | ||
43 | /* SET_INTERFACE */ | |
44 | #define UDC_SETINTF_DWORD0 0x00000b00 | |
45 | #define UDC_SETINTF_DWORD0_ALT_MASK 0xffff0000 | |
46 | #define UDC_SETINTF_DWORD0_ALT_OFS 16 | |
47 | ||
48 | #define UDC_SETINTF_DWORD1 0x00000000 | |
49 | #define UDC_SETINTF_DWORD1_INTF_MASK 0x0000ffff | |
50 | #define UDC_SETINTF_DWORD1_INTF_OFS 0 | |
51 | ||
52 | /* Mass storage reset */ | |
53 | #define UDC_MSCRES_DWORD0 0x0000ff21 | |
54 | #define UDC_MSCRES_DWORD1 0x00000000 | |
55 | ||
56 | /* Global CSR's -------------------------------------------------------------*/ | |
57 | #define UDC_CSR_ADDR 0x500 | |
58 | ||
59 | /* EP NE bits */ | |
60 | /* EP number */ | |
61 | #define UDC_CSR_NE_NUM_MASK 0x0000000f | |
62 | #define UDC_CSR_NE_NUM_OFS 0 | |
63 | /* EP direction */ | |
64 | #define UDC_CSR_NE_DIR_MASK 0x00000010 | |
65 | #define UDC_CSR_NE_DIR_OFS 4 | |
66 | /* EP type */ | |
67 | #define UDC_CSR_NE_TYPE_MASK 0x00000060 | |
68 | #define UDC_CSR_NE_TYPE_OFS 5 | |
69 | /* EP config number */ | |
70 | #define UDC_CSR_NE_CFG_MASK 0x00000780 | |
71 | #define UDC_CSR_NE_CFG_OFS 7 | |
72 | /* EP interface number */ | |
73 | #define UDC_CSR_NE_INTF_MASK 0x00007800 | |
74 | #define UDC_CSR_NE_INTF_OFS 11 | |
75 | /* EP alt setting */ | |
76 | #define UDC_CSR_NE_ALT_MASK 0x00078000 | |
77 | #define UDC_CSR_NE_ALT_OFS 15 | |
78 | ||
79 | /* max pkt */ | |
80 | #define UDC_CSR_NE_MAX_PKT_MASK 0x3ff80000 | |
81 | #define UDC_CSR_NE_MAX_PKT_OFS 19 | |
82 | ||
83 | /* Device Config Register ---------------------------------------------------*/ | |
84 | #define UDC_DEVCFG_ADDR 0x400 | |
85 | ||
86 | #define UDC_DEVCFG_SOFTRESET 31 | |
87 | #define UDC_DEVCFG_HNPSFEN 30 | |
88 | #define UDC_DEVCFG_DMARST 29 | |
89 | #define UDC_DEVCFG_SET_DESC 18 | |
90 | #define UDC_DEVCFG_CSR_PRG 17 | |
91 | #define UDC_DEVCFG_STATUS 7 | |
92 | #define UDC_DEVCFG_DIR 6 | |
93 | #define UDC_DEVCFG_PI 5 | |
94 | #define UDC_DEVCFG_SS 4 | |
95 | #define UDC_DEVCFG_SP 3 | |
96 | #define UDC_DEVCFG_RWKP 2 | |
97 | ||
98 | #define UDC_DEVCFG_SPD_MASK 0x3 | |
99 | #define UDC_DEVCFG_SPD_OFS 0 | |
100 | #define UDC_DEVCFG_SPD_HS 0x0 | |
101 | #define UDC_DEVCFG_SPD_FS 0x1 | |
102 | #define UDC_DEVCFG_SPD_LS 0x2 | |
103 | /*#define UDC_DEVCFG_SPD_FS 0x3*/ | |
104 | ||
105 | ||
106 | /* Device Control Register --------------------------------------------------*/ | |
107 | #define UDC_DEVCTL_ADDR 0x404 | |
108 | ||
109 | #define UDC_DEVCTL_THLEN_MASK 0xff000000 | |
110 | #define UDC_DEVCTL_THLEN_OFS 24 | |
111 | ||
112 | #define UDC_DEVCTL_BRLEN_MASK 0x00ff0000 | |
113 | #define UDC_DEVCTL_BRLEN_OFS 16 | |
114 | ||
1b9f35ad | 115 | #define UDC_DEVCTL_SRX_FLUSH 14 |
55d402d8 TD |
116 | #define UDC_DEVCTL_CSR_DONE 13 |
117 | #define UDC_DEVCTL_DEVNAK 12 | |
118 | #define UDC_DEVCTL_SD 10 | |
119 | #define UDC_DEVCTL_MODE 9 | |
120 | #define UDC_DEVCTL_BREN 8 | |
121 | #define UDC_DEVCTL_THE 7 | |
122 | #define UDC_DEVCTL_BF 6 | |
123 | #define UDC_DEVCTL_BE 5 | |
124 | #define UDC_DEVCTL_DU 4 | |
125 | #define UDC_DEVCTL_TDE 3 | |
126 | #define UDC_DEVCTL_RDE 2 | |
127 | #define UDC_DEVCTL_RES 0 | |
128 | ||
129 | ||
130 | /* Device Status Register ---------------------------------------------------*/ | |
131 | #define UDC_DEVSTS_ADDR 0x408 | |
132 | ||
133 | #define UDC_DEVSTS_TS_MASK 0xfffc0000 | |
134 | #define UDC_DEVSTS_TS_OFS 18 | |
135 | ||
136 | #define UDC_DEVSTS_SESSVLD 17 | |
137 | #define UDC_DEVSTS_PHY_ERROR 16 | |
138 | #define UDC_DEVSTS_RXFIFO_EMPTY 15 | |
139 | ||
140 | #define UDC_DEVSTS_ENUM_SPEED_MASK 0x00006000 | |
141 | #define UDC_DEVSTS_ENUM_SPEED_OFS 13 | |
142 | #define UDC_DEVSTS_ENUM_SPEED_FULL 1 | |
143 | #define UDC_DEVSTS_ENUM_SPEED_HIGH 0 | |
144 | ||
145 | #define UDC_DEVSTS_SUSP 12 | |
146 | ||
147 | #define UDC_DEVSTS_ALT_MASK 0x00000f00 | |
148 | #define UDC_DEVSTS_ALT_OFS 8 | |
149 | ||
150 | #define UDC_DEVSTS_INTF_MASK 0x000000f0 | |
151 | #define UDC_DEVSTS_INTF_OFS 4 | |
152 | ||
153 | #define UDC_DEVSTS_CFG_MASK 0x0000000f | |
154 | #define UDC_DEVSTS_CFG_OFS 0 | |
155 | ||
156 | ||
157 | /* Device Interrupt Register ------------------------------------------------*/ | |
158 | #define UDC_DEVINT_ADDR 0x40c | |
159 | ||
160 | #define UDC_DEVINT_SVC 7 | |
161 | #define UDC_DEVINT_ENUM 6 | |
162 | #define UDC_DEVINT_SOF 5 | |
163 | #define UDC_DEVINT_US 4 | |
164 | #define UDC_DEVINT_UR 3 | |
165 | #define UDC_DEVINT_ES 2 | |
166 | #define UDC_DEVINT_SI 1 | |
167 | #define UDC_DEVINT_SC 0 | |
168 | ||
169 | /* Device Interrupt Mask Register -------------------------------------------*/ | |
170 | #define UDC_DEVINT_MSK_ADDR 0x410 | |
171 | ||
172 | #define UDC_DEVINT_MSK 0x7f | |
173 | ||
174 | /* Endpoint Interrupt Register ----------------------------------------------*/ | |
175 | #define UDC_EPINT_ADDR 0x414 | |
176 | ||
177 | #define UDC_EPINT_OUT_MASK 0xffff0000 | |
178 | #define UDC_EPINT_OUT_OFS 16 | |
179 | #define UDC_EPINT_IN_MASK 0x0000ffff | |
180 | #define UDC_EPINT_IN_OFS 0 | |
181 | ||
182 | #define UDC_EPINT_IN_EP0 0 | |
183 | #define UDC_EPINT_IN_EP1 1 | |
184 | #define UDC_EPINT_IN_EP2 2 | |
185 | #define UDC_EPINT_IN_EP3 3 | |
186 | #define UDC_EPINT_OUT_EP0 16 | |
187 | #define UDC_EPINT_OUT_EP1 17 | |
188 | #define UDC_EPINT_OUT_EP2 18 | |
189 | #define UDC_EPINT_OUT_EP3 19 | |
190 | ||
191 | #define UDC_EPINT_EP0_ENABLE_MSK 0x001e001e | |
192 | ||
193 | /* Endpoint Interrupt Mask Register -----------------------------------------*/ | |
194 | #define UDC_EPINT_MSK_ADDR 0x418 | |
195 | ||
196 | #define UDC_EPINT_OUT_MSK_MASK 0xffff0000 | |
197 | #define UDC_EPINT_OUT_MSK_OFS 16 | |
198 | #define UDC_EPINT_IN_MSK_MASK 0x0000ffff | |
199 | #define UDC_EPINT_IN_MSK_OFS 0 | |
200 | ||
201 | #define UDC_EPINT_MSK_DISABLE_ALL 0xffffffff | |
202 | /* mask non-EP0 endpoints */ | |
203 | #define UDC_EPDATAINT_MSK_DISABLE 0xfffefffe | |
204 | /* mask all dev interrupts */ | |
205 | #define UDC_DEV_MSK_DISABLE 0x7f | |
206 | ||
207 | /* Endpoint-specific CSR's --------------------------------------------------*/ | |
208 | #define UDC_EPREGS_ADDR 0x0 | |
209 | #define UDC_EPIN_REGS_ADDR 0x0 | |
210 | #define UDC_EPOUT_REGS_ADDR 0x200 | |
211 | ||
212 | #define UDC_EPCTL_ADDR 0x0 | |
213 | ||
214 | #define UDC_EPCTL_RRDY 9 | |
215 | #define UDC_EPCTL_CNAK 8 | |
216 | #define UDC_EPCTL_SNAK 7 | |
217 | #define UDC_EPCTL_NAK 6 | |
218 | ||
219 | #define UDC_EPCTL_ET_MASK 0x00000030 | |
220 | #define UDC_EPCTL_ET_OFS 4 | |
221 | #define UDC_EPCTL_ET_CONTROL 0 | |
222 | #define UDC_EPCTL_ET_ISO 1 | |
223 | #define UDC_EPCTL_ET_BULK 2 | |
224 | #define UDC_EPCTL_ET_INTERRUPT 3 | |
225 | ||
226 | #define UDC_EPCTL_P 3 | |
227 | #define UDC_EPCTL_SN 2 | |
228 | #define UDC_EPCTL_F 1 | |
229 | #define UDC_EPCTL_S 0 | |
230 | ||
231 | /* Endpoint Status Registers ------------------------------------------------*/ | |
232 | #define UDC_EPSTS_ADDR 0x4 | |
233 | ||
234 | #define UDC_EPSTS_RX_PKT_SIZE_MASK 0x007ff800 | |
235 | #define UDC_EPSTS_RX_PKT_SIZE_OFS 11 | |
236 | ||
237 | #define UDC_EPSTS_TDC 10 | |
238 | #define UDC_EPSTS_HE 9 | |
239 | #define UDC_EPSTS_BNA 7 | |
240 | #define UDC_EPSTS_IN 6 | |
241 | ||
242 | #define UDC_EPSTS_OUT_MASK 0x00000030 | |
243 | #define UDC_EPSTS_OUT_OFS 4 | |
244 | #define UDC_EPSTS_OUT_DATA 1 | |
245 | #define UDC_EPSTS_OUT_DATA_CLEAR 0x10 | |
246 | #define UDC_EPSTS_OUT_SETUP 2 | |
247 | #define UDC_EPSTS_OUT_SETUP_CLEAR 0x20 | |
248 | #define UDC_EPSTS_OUT_CLEAR 0x30 | |
249 | ||
250 | /* Endpoint Buffer Size IN/ Receive Packet Frame Number OUT Registers ------*/ | |
251 | #define UDC_EPIN_BUFF_SIZE_ADDR 0x8 | |
252 | #define UDC_EPOUT_FRAME_NUMBER_ADDR 0x8 | |
253 | ||
254 | #define UDC_EPIN_BUFF_SIZE_MASK 0x0000ffff | |
255 | #define UDC_EPIN_BUFF_SIZE_OFS 0 | |
256 | /* EP0in txfifo = 128 bytes*/ | |
257 | #define UDC_EPIN0_BUFF_SIZE 32 | |
258 | /* EP0in fullspeed txfifo = 128 bytes*/ | |
259 | #define UDC_FS_EPIN0_BUFF_SIZE 32 | |
260 | ||
261 | /* fifo size mult = fifo size / max packet */ | |
262 | #define UDC_EPIN_BUFF_SIZE_MULT 2 | |
263 | ||
264 | /* EPin data fifo size = 1024 bytes DOUBLE BUFFERING */ | |
265 | #define UDC_EPIN_BUFF_SIZE 256 | |
266 | /* EPin small INT data fifo size = 128 bytes */ | |
267 | #define UDC_EPIN_SMALLINT_BUFF_SIZE 32 | |
268 | ||
269 | /* EPin fullspeed data fifo size = 128 bytes DOUBLE BUFFERING */ | |
270 | #define UDC_FS_EPIN_BUFF_SIZE 32 | |
271 | ||
272 | #define UDC_EPOUT_FRAME_NUMBER_MASK 0x0000ffff | |
273 | #define UDC_EPOUT_FRAME_NUMBER_OFS 0 | |
274 | ||
275 | /* Endpoint Buffer Size OUT/Max Packet Size Registers -----------------------*/ | |
276 | #define UDC_EPOUT_BUFF_SIZE_ADDR 0x0c | |
277 | #define UDC_EP_MAX_PKT_SIZE_ADDR 0x0c | |
278 | ||
279 | #define UDC_EPOUT_BUFF_SIZE_MASK 0xffff0000 | |
280 | #define UDC_EPOUT_BUFF_SIZE_OFS 16 | |
281 | #define UDC_EP_MAX_PKT_SIZE_MASK 0x0000ffff | |
282 | #define UDC_EP_MAX_PKT_SIZE_OFS 0 | |
283 | /* EP0in max packet size = 64 bytes */ | |
284 | #define UDC_EP0IN_MAX_PKT_SIZE 64 | |
285 | /* EP0out max packet size = 64 bytes */ | |
286 | #define UDC_EP0OUT_MAX_PKT_SIZE 64 | |
287 | /* EP0in fullspeed max packet size = 64 bytes */ | |
288 | #define UDC_FS_EP0IN_MAX_PKT_SIZE 64 | |
289 | /* EP0out fullspeed max packet size = 64 bytes */ | |
290 | #define UDC_FS_EP0OUT_MAX_PKT_SIZE 64 | |
291 | ||
292 | /* | |
293 | * Endpoint dma descriptors ------------------------------------------------ | |
294 | * | |
295 | * Setup data, Status dword | |
296 | */ | |
297 | #define UDC_DMA_STP_STS_CFG_MASK 0x0fff0000 | |
298 | #define UDC_DMA_STP_STS_CFG_OFS 16 | |
299 | #define UDC_DMA_STP_STS_CFG_ALT_MASK 0x000f0000 | |
300 | #define UDC_DMA_STP_STS_CFG_ALT_OFS 16 | |
301 | #define UDC_DMA_STP_STS_CFG_INTF_MASK 0x00f00000 | |
302 | #define UDC_DMA_STP_STS_CFG_INTF_OFS 20 | |
303 | #define UDC_DMA_STP_STS_CFG_NUM_MASK 0x0f000000 | |
304 | #define UDC_DMA_STP_STS_CFG_NUM_OFS 24 | |
305 | #define UDC_DMA_STP_STS_RX_MASK 0x30000000 | |
306 | #define UDC_DMA_STP_STS_RX_OFS 28 | |
307 | #define UDC_DMA_STP_STS_BS_MASK 0xc0000000 | |
308 | #define UDC_DMA_STP_STS_BS_OFS 30 | |
309 | #define UDC_DMA_STP_STS_BS_HOST_READY 0 | |
310 | #define UDC_DMA_STP_STS_BS_DMA_BUSY 1 | |
311 | #define UDC_DMA_STP_STS_BS_DMA_DONE 2 | |
312 | #define UDC_DMA_STP_STS_BS_HOST_BUSY 3 | |
313 | /* IN data, Status dword */ | |
314 | #define UDC_DMA_IN_STS_TXBYTES_MASK 0x0000ffff | |
315 | #define UDC_DMA_IN_STS_TXBYTES_OFS 0 | |
316 | #define UDC_DMA_IN_STS_FRAMENUM_MASK 0x07ff0000 | |
317 | #define UDC_DMA_IN_STS_FRAMENUM_OFS 0 | |
318 | #define UDC_DMA_IN_STS_L 27 | |
319 | #define UDC_DMA_IN_STS_TX_MASK 0x30000000 | |
320 | #define UDC_DMA_IN_STS_TX_OFS 28 | |
321 | #define UDC_DMA_IN_STS_BS_MASK 0xc0000000 | |
322 | #define UDC_DMA_IN_STS_BS_OFS 30 | |
323 | #define UDC_DMA_IN_STS_BS_HOST_READY 0 | |
324 | #define UDC_DMA_IN_STS_BS_DMA_BUSY 1 | |
325 | #define UDC_DMA_IN_STS_BS_DMA_DONE 2 | |
326 | #define UDC_DMA_IN_STS_BS_HOST_BUSY 3 | |
327 | /* OUT data, Status dword */ | |
328 | #define UDC_DMA_OUT_STS_RXBYTES_MASK 0x0000ffff | |
329 | #define UDC_DMA_OUT_STS_RXBYTES_OFS 0 | |
330 | #define UDC_DMA_OUT_STS_FRAMENUM_MASK 0x07ff0000 | |
331 | #define UDC_DMA_OUT_STS_FRAMENUM_OFS 0 | |
332 | #define UDC_DMA_OUT_STS_L 27 | |
333 | #define UDC_DMA_OUT_STS_RX_MASK 0x30000000 | |
334 | #define UDC_DMA_OUT_STS_RX_OFS 28 | |
335 | #define UDC_DMA_OUT_STS_BS_MASK 0xc0000000 | |
336 | #define UDC_DMA_OUT_STS_BS_OFS 30 | |
337 | #define UDC_DMA_OUT_STS_BS_HOST_READY 0 | |
338 | #define UDC_DMA_OUT_STS_BS_DMA_BUSY 1 | |
339 | #define UDC_DMA_OUT_STS_BS_DMA_DONE 2 | |
340 | #define UDC_DMA_OUT_STS_BS_HOST_BUSY 3 | |
341 | /* max ep0in packet */ | |
342 | #define UDC_EP0IN_MAXPACKET 1000 | |
343 | /* max dma packet */ | |
344 | #define UDC_DMA_MAXPACKET 65536 | |
345 | ||
346 | /* un-usable DMA address */ | |
347 | #define DMA_DONT_USE (~(dma_addr_t) 0 ) | |
348 | ||
349 | /* other Endpoint register addresses and values-----------------------------*/ | |
350 | #define UDC_EP_SUBPTR_ADDR 0x10 | |
351 | #define UDC_EP_DESPTR_ADDR 0x14 | |
352 | #define UDC_EP_WRITE_CONFIRM_ADDR 0x1c | |
353 | ||
354 | /* EP number as layouted in AHB space */ | |
355 | #define UDC_EP_NUM 32 | |
356 | #define UDC_EPIN_NUM 16 | |
357 | #define UDC_EPIN_NUM_USED 5 | |
358 | #define UDC_EPOUT_NUM 16 | |
359 | /* EP number of EP's really used = EP0 + 8 data EP's */ | |
360 | #define UDC_USED_EP_NUM 9 | |
361 | /* UDC CSR regs are aligned but AHB regs not - offset for OUT EP's */ | |
362 | #define UDC_CSR_EP_OUT_IX_OFS 12 | |
363 | ||
364 | #define UDC_EP0OUT_IX 16 | |
365 | #define UDC_EP0IN_IX 0 | |
366 | ||
367 | /* Rx fifo address and size = 1k -------------------------------------------*/ | |
368 | #define UDC_RXFIFO_ADDR 0x800 | |
369 | #define UDC_RXFIFO_SIZE 0x400 | |
370 | ||
371 | /* Tx fifo address and size = 1.5k -----------------------------------------*/ | |
372 | #define UDC_TXFIFO_ADDR 0xc00 | |
373 | #define UDC_TXFIFO_SIZE 0x600 | |
374 | ||
375 | /* default data endpoints --------------------------------------------------*/ | |
376 | #define UDC_EPIN_STATUS_IX 1 | |
377 | #define UDC_EPIN_IX 2 | |
378 | #define UDC_EPOUT_IX 18 | |
379 | ||
380 | /* general constants -------------------------------------------------------*/ | |
381 | #define UDC_DWORD_BYTES 4 | |
382 | #define UDC_BITS_PER_BYTE_SHIFT 3 | |
383 | #define UDC_BYTE_MASK 0xff | |
384 | #define UDC_BITS_PER_BYTE 8 | |
385 | ||
386 | /*---------------------------------------------------------------------------*/ | |
387 | /* UDC CSR's */ | |
388 | struct udc_csrs { | |
389 | ||
390 | /* sca - setup command address */ | |
391 | u32 sca; | |
392 | ||
393 | /* ep ne's */ | |
394 | u32 ne[UDC_USED_EP_NUM]; | |
395 | } __attribute__ ((packed)); | |
396 | ||
397 | /* AHB subsystem CSR registers */ | |
398 | struct udc_regs { | |
399 | ||
400 | /* device configuration */ | |
401 | u32 cfg; | |
402 | ||
403 | /* device control */ | |
404 | u32 ctl; | |
405 | ||
406 | /* device status */ | |
407 | u32 sts; | |
408 | ||
409 | /* device interrupt */ | |
410 | u32 irqsts; | |
411 | ||
412 | /* device interrupt mask */ | |
413 | u32 irqmsk; | |
414 | ||
415 | /* endpoint interrupt */ | |
416 | u32 ep_irqsts; | |
417 | ||
418 | /* endpoint interrupt mask */ | |
419 | u32 ep_irqmsk; | |
420 | } __attribute__ ((packed)); | |
421 | ||
422 | /* endpoint specific registers */ | |
423 | struct udc_ep_regs { | |
424 | ||
425 | /* endpoint control */ | |
426 | u32 ctl; | |
427 | ||
428 | /* endpoint status */ | |
429 | u32 sts; | |
430 | ||
431 | /* endpoint buffer size in/ receive packet frame number out */ | |
432 | u32 bufin_framenum; | |
433 | ||
434 | /* endpoint buffer size out/max packet size */ | |
435 | u32 bufout_maxpkt; | |
436 | ||
437 | /* endpoint setup buffer pointer */ | |
438 | u32 subptr; | |
439 | ||
440 | /* endpoint data descriptor pointer */ | |
441 | u32 desptr; | |
442 | ||
fcec4591 | 443 | /* reserved */ |
55d402d8 TD |
444 | u32 reserved; |
445 | ||
446 | /* write/read confirmation */ | |
447 | u32 confirm; | |
448 | ||
449 | } __attribute__ ((packed)); | |
450 | ||
451 | /* control data DMA desc */ | |
452 | struct udc_stp_dma { | |
453 | /* status quadlet */ | |
454 | u32 status; | |
455 | /* reserved */ | |
456 | u32 _reserved; | |
457 | /* first setup word */ | |
458 | u32 data12; | |
459 | /* second setup word */ | |
460 | u32 data34; | |
461 | } __attribute__ ((aligned (16))); | |
462 | ||
463 | /* normal data DMA desc */ | |
464 | struct udc_data_dma { | |
465 | /* status quadlet */ | |
466 | u32 status; | |
467 | /* reserved */ | |
468 | u32 _reserved; | |
469 | /* buffer pointer */ | |
470 | u32 bufptr; | |
471 | /* next descriptor pointer */ | |
472 | u32 next; | |
473 | } __attribute__ ((aligned (16))); | |
474 | ||
475 | /* request packet */ | |
476 | struct udc_request { | |
477 | /* embedded gadget ep */ | |
478 | struct usb_request req; | |
479 | ||
480 | /* flags */ | |
481 | unsigned dma_going : 1, | |
55d402d8 TD |
482 | dma_done : 1; |
483 | /* phys. address */ | |
484 | dma_addr_t td_phys; | |
485 | /* first dma desc. of chain */ | |
486 | struct udc_data_dma *td_data; | |
487 | /* last dma desc. of chain */ | |
488 | struct udc_data_dma *td_data_last; | |
489 | struct list_head queue; | |
490 | ||
491 | /* chain length */ | |
492 | unsigned chain_len; | |
493 | ||
494 | }; | |
495 | ||
496 | /* UDC specific endpoint parameters */ | |
497 | struct udc_ep { | |
498 | struct usb_ep ep; | |
499 | struct udc_ep_regs __iomem *regs; | |
500 | u32 __iomem *txfifo; | |
501 | u32 __iomem *dma; | |
502 | dma_addr_t td_phys; | |
503 | dma_addr_t td_stp_dma; | |
504 | struct udc_stp_dma *td_stp; | |
505 | struct udc_data_dma *td; | |
506 | /* temp request */ | |
507 | struct udc_request *req; | |
508 | unsigned req_used; | |
509 | unsigned req_completed; | |
510 | /* dummy DMA desc for BNA dummy */ | |
511 | struct udc_request *bna_dummy_req; | |
512 | unsigned bna_occurred; | |
513 | ||
514 | /* NAK state */ | |
515 | unsigned naking; | |
516 | ||
517 | struct udc *dev; | |
518 | ||
519 | /* queue for requests */ | |
520 | struct list_head queue; | |
55d402d8 TD |
521 | unsigned halted; |
522 | unsigned cancel_transfer; | |
523 | unsigned num : 5, | |
524 | fifo_depth : 14, | |
525 | in : 1; | |
526 | }; | |
527 | ||
528 | /* device struct */ | |
529 | struct udc { | |
530 | struct usb_gadget gadget; | |
531 | spinlock_t lock; /* protects all state */ | |
532 | /* all endpoints */ | |
533 | struct udc_ep ep[UDC_EP_NUM]; | |
534 | struct usb_gadget_driver *driver; | |
535 | /* operational flags */ | |
76c3727d | 536 | unsigned stall_ep0in : 1, |
55d402d8 TD |
537 | waiting_zlp_ack_ep0in : 1, |
538 | set_cfg_not_acked : 1, | |
55d402d8 TD |
539 | data_ep_enabled : 1, |
540 | data_ep_queued : 1, | |
55d402d8 TD |
541 | sys_suspended : 1, |
542 | connected; | |
543 | ||
544 | u16 chiprev; | |
545 | ||
546 | /* registers */ | |
547 | struct pci_dev *pdev; | |
548 | struct udc_csrs __iomem *csr; | |
549 | struct udc_regs __iomem *regs; | |
550 | struct udc_ep_regs __iomem *ep_regs; | |
551 | u32 __iomem *rxfifo; | |
552 | u32 __iomem *txfifo; | |
553 | ||
554 | /* DMA desc pools */ | |
b5a6a4e5 RP |
555 | struct dma_pool *data_requests; |
556 | struct dma_pool *stp_requests; | |
55d402d8 TD |
557 | |
558 | /* device data */ | |
559 | unsigned long phys_addr; | |
560 | void __iomem *virt_addr; | |
561 | unsigned irq; | |
562 | ||
563 | /* states */ | |
564 | u16 cur_config; | |
565 | u16 cur_intf; | |
566 | u16 cur_alt; | |
498beb42 | 567 | |
1b9f35ad | 568 | /* for platform device and extcon support */ |
498beb42 | 569 | struct device *dev; |
1b9f35ad RG |
570 | struct phy *udc_phy; |
571 | struct extcon_dev *edev; | |
572 | struct extcon_specific_cable_nb extcon_nb; | |
573 | struct notifier_block nb; | |
574 | struct delayed_work drd_work; | |
575 | struct workqueue_struct *drd_wq; | |
576 | u32 conn_type; | |
55d402d8 TD |
577 | }; |
578 | ||
45005f69 FB |
579 | #define to_amd5536_udc(g) (container_of((g), struct udc, gadget)) |
580 | ||
55d402d8 TD |
581 | /* setup request data */ |
582 | union udc_setup_data { | |
583 | u32 data[2]; | |
584 | struct usb_ctrlrequest request; | |
585 | }; | |
586 | ||
97b3ffa2 RG |
587 | /* Function declarations */ |
588 | int udc_enable_dev_setup_interrupts(struct udc *dev); | |
589 | int udc_mask_unused_interrupts(struct udc *dev); | |
590 | irqreturn_t udc_irq(int irq, void *pdev); | |
591 | void gadget_release(struct device *pdev); | |
1b9f35ad | 592 | void empty_req_queue(struct udc_ep *ep); |
97b3ffa2 RG |
593 | void udc_basic_init(struct udc *dev); |
594 | void free_dma_pools(struct udc *dev); | |
595 | int init_dma_pools(struct udc *dev); | |
596 | void udc_remove(struct udc *dev); | |
597 | int udc_probe(struct udc *dev); | |
598 | ||
599 | /* DMA usage flag */ | |
600 | static bool use_dma = 1; | |
601 | /* packet per buffer dma */ | |
602 | static bool use_dma_ppb = 1; | |
603 | /* with per descr. update */ | |
604 | static bool use_dma_ppb_du; | |
605 | /* full speed only mode */ | |
606 | static bool use_fullspeed; | |
607 | ||
608 | /* module parameters */ | |
609 | module_param(use_dma, bool, S_IRUGO); | |
610 | MODULE_PARM_DESC(use_dma, "true for DMA"); | |
611 | module_param(use_dma_ppb, bool, S_IRUGO); | |
612 | MODULE_PARM_DESC(use_dma_ppb, "true for DMA in packet per buffer mode"); | |
613 | module_param(use_dma_ppb_du, bool, S_IRUGO); | |
614 | MODULE_PARM_DESC(use_dma_ppb_du, | |
615 | "true for DMA in packet per buffer mode with descriptor update"); | |
616 | module_param(use_fullspeed, bool, S_IRUGO); | |
617 | MODULE_PARM_DESC(use_fullspeed, "true for fullspeed only"); | |
55d402d8 TD |
618 | /* |
619 | *--------------------------------------------------------------------------- | |
620 | * SET and GET bitfields in u32 values | |
621 | * via constants for mask/offset: | |
622 | * <bit_field_stub_name> is the text between | |
25985edc | 623 | * UDC_ and _MASK|_OFS of appropriate |
55d402d8 TD |
624 | * constant |
625 | * | |
626 | * set bitfield value in u32 u32Val | |
627 | */ | |
628 | #define AMD_ADDBITS(u32Val, bitfield_val, bitfield_stub_name) \ | |
629 | (((u32Val) & (((u32) ~((u32) bitfield_stub_name##_MASK)))) \ | |
630 | | (((bitfield_val) << ((u32) bitfield_stub_name##_OFS)) \ | |
631 | & ((u32) bitfield_stub_name##_MASK))) | |
632 | ||
633 | /* | |
634 | * set bitfield value in zero-initialized u32 u32Val | |
635 | * => bitfield bits in u32Val are all zero | |
636 | */ | |
637 | #define AMD_INIT_SETBITS(u32Val, bitfield_val, bitfield_stub_name) \ | |
638 | ((u32Val) \ | |
639 | | (((bitfield_val) << ((u32) bitfield_stub_name##_OFS)) \ | |
640 | & ((u32) bitfield_stub_name##_MASK))) | |
641 | ||
642 | /* get bitfield value from u32 u32Val */ | |
643 | #define AMD_GETBITS(u32Val, bitfield_stub_name) \ | |
644 | ((u32Val & ((u32) bitfield_stub_name##_MASK)) \ | |
645 | >> ((u32) bitfield_stub_name##_OFS)) | |
646 | ||
647 | /* SET and GET bits in u32 values ------------------------------------------*/ | |
648 | #define AMD_BIT(bit_stub_name) (1 << bit_stub_name) | |
649 | #define AMD_UNMASK_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name)) | |
650 | #define AMD_CLEAR_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name)) | |
651 | ||
652 | /* debug macros ------------------------------------------------------------*/ | |
653 | ||
498beb42 | 654 | #define DBG(udc , args...) dev_dbg(udc->dev, args) |
55d402d8 TD |
655 | |
656 | #ifdef UDC_VERBOSE | |
657 | #define VDBG DBG | |
658 | #else | |
659 | #define VDBG(udc , args...) do {} while (0) | |
660 | #endif | |
661 | ||
662 | #endif /* #ifdef AMD5536UDC_H */ |