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Commit | Line | Data |
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3e326ece | 1 | /* |
4dae14ce ZW |
2 | * URB OHCI HCD (Host Controller Driver) for USB on the AT91RM9200 and PCI bus. |
3 | * | |
4 | * Interrupt support is added. Now, it has been tested | |
5 | * on ULI1575 chip and works well with USB keyboard. | |
6 | * | |
7 | * (C) Copyright 2007 | |
8 | * Zhang Wei, Freescale Semiconductor, Inc. <wei.zhang@freescale.com> | |
3e326ece MK |
9 | * |
10 | * (C) Copyright 2003 | |
792a09eb | 11 | * Gary Jennejohn, DENX Software Engineering <garyj@denx.de> |
3e326ece MK |
12 | * |
13 | * Note: Much of this code has been derived from Linux 2.4 | |
14 | * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> | |
15 | * (C) Copyright 2000-2002 David Brownell | |
16 | * | |
17 | * Modified for the MP2USB by (C) Copyright 2005 Eric Benard | |
18 | * ebenard@eukrea.com - based on s3c24x0's driver | |
19 | * | |
1a459660 | 20 | * SPDX-License-Identifier: GPL-2.0+ |
3e326ece MK |
21 | */ |
22 | /* | |
23 | * IMPORTANT NOTES | |
fc43be47 | 24 | * 1 - Read doc/README.generic_usb_ohci |
3e326ece | 25 | * 2 - this driver is intended for use with USB Mass Storage Devices |
4dae14ce | 26 | * (BBB) and USB keyboard. There is NO support for Isochronous pipes! |
fc43be47 | 27 | * 2 - when running on a PQFP208 AT91RM9200, define CONFIG_AT91C_PQFP_UHPBUG |
3e326ece MK |
28 | * to activate workaround for bug #41 or this driver will NOT work! |
29 | */ | |
30 | ||
31 | #include <common.h> | |
fc43be47 MK |
32 | #include <asm/byteorder.h> |
33 | ||
34 | #if defined(CONFIG_PCI_OHCI) | |
4dae14ce | 35 | # include <pci.h> |
477434c6 SP |
36 | #if !defined(CONFIG_PCI_OHCI_DEVNO) |
37 | #define CONFIG_PCI_OHCI_DEVNO 0 | |
38 | #endif | |
ddf83a2f | 39 | #endif |
3e326ece MK |
40 | |
41 | #include <malloc.h> | |
42 | #include <usb.h> | |
2731b9a8 JCPV |
43 | |
44 | #include "ohci.h" | |
3e326ece | 45 | |
e8da58f2 WD |
46 | #ifdef CONFIG_AT91RM9200 |
47 | #include <asm/arch/hardware.h> /* needed for AT91_USB_HOST_BASE */ | |
48 | #endif | |
49 | ||
f2168440 | 50 | #if defined(CONFIG_CPU_ARM920T) || \ |
ac67804f | 51 | defined(CONFIG_S3C24X0) || \ |
ae3b770e | 52 | defined(CONFIG_440EP) || \ |
4dae14ce | 53 | defined(CONFIG_PCI_OHCI) || \ |
2596f5b9 | 54 | defined(CONFIG_MPC5200) || \ |
6d0f6bcf | 55 | defined(CONFIG_SYS_OHCI_USE_NPS) |
24e37645 MK |
56 | # define OHCI_USE_NPS /* force NoPowerSwitching mode */ |
57 | #endif | |
58 | ||
3e326ece | 59 | #undef OHCI_VERBOSE_DEBUG /* not always helpful */ |
ae3b770e MK |
60 | #undef DEBUG |
61 | #undef SHOW_INFO | |
62 | #undef OHCI_FILL_TRACE | |
3e326ece MK |
63 | |
64 | /* For initializing controller (mask in an HCFS mode too) */ | |
65 | #define OHCI_CONTROL_INIT \ | |
66 | (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE | |
67 | ||
4dae14ce ZW |
68 | #ifdef CONFIG_PCI_OHCI |
69 | static struct pci_device_id ohci_pci_ids[] = { | |
70 | {0x10b9, 0x5237}, /* ULI1575 PCI OHCI module ids */ | |
97213f32 | 71 | {0x1033, 0x0035}, /* NEC PCI OHCI module ids */ |
3afac79e | 72 | {0x1131, 0x1561}, /* Philips 1561 PCI OHCI module ids */ |
4dae14ce ZW |
73 | /* Please add supported PCI OHCI controller ids here */ |
74 | {0, 0} | |
75 | }; | |
76 | #endif | |
77 | ||
e90fb6af YT |
78 | #ifdef CONFIG_PCI_EHCI_DEVNO |
79 | static struct pci_device_id ehci_pci_ids[] = { | |
80 | {0x1131, 0x1562}, /* Philips 1562 PCI EHCI module ids */ | |
81 | /* Please add supported PCI EHCI controller ids here */ | |
82 | {0, 0} | |
83 | }; | |
84 | #endif | |
85 | ||
3e326ece MK |
86 | #ifdef DEBUG |
87 | #define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg) | |
88 | #else | |
6f5794a6 | 89 | #define dbg(format, arg...) do {} while (0) |
3e326ece MK |
90 | #endif /* DEBUG */ |
91 | #define err(format, arg...) printf("ERROR: " format "\n", ## arg) | |
3e326ece MK |
92 | #ifdef SHOW_INFO |
93 | #define info(format, arg...) printf("INFO: " format "\n", ## arg) | |
94 | #else | |
6f5794a6 | 95 | #define info(format, arg...) do {} while (0) |
3e326ece MK |
96 | #endif |
97 | ||
6d0f6bcf | 98 | #ifdef CONFIG_SYS_OHCI_BE_CONTROLLER |
fc43be47 MK |
99 | # define m16_swap(x) cpu_to_be16(x) |
100 | # define m32_swap(x) cpu_to_be32(x) | |
ae3b770e | 101 | #else |
fc43be47 MK |
102 | # define m16_swap(x) cpu_to_le16(x) |
103 | # define m32_swap(x) cpu_to_le32(x) | |
6d0f6bcf | 104 | #endif /* CONFIG_SYS_OHCI_BE_CONTROLLER */ |
3e326ece MK |
105 | |
106 | /* global ohci_t */ | |
107 | static ohci_t gohci; | |
108 | /* this must be aligned to a 256 byte boundary */ | |
109 | struct ohci_hcca ghcca[1]; | |
110 | /* a pointer to the aligned storage */ | |
111 | struct ohci_hcca *phcca; | |
112 | /* this allocates EDs for all possible endpoints */ | |
113 | struct ohci_device ohci_dev; | |
3e326ece MK |
114 | /* device which was disconnected */ |
115 | struct usb_device *devgone; | |
116 | ||
6f5794a6 | 117 | static inline u32 roothub_a(struct ohci *hc) |
a5496a18 | 118 | { return ohci_readl(&hc->regs->roothub.a); } |
6f5794a6 | 119 | static inline u32 roothub_b(struct ohci *hc) |
a5496a18 | 120 | { return ohci_readl(&hc->regs->roothub.b); } |
6f5794a6 | 121 | static inline u32 roothub_status(struct ohci *hc) |
a5496a18 | 122 | { return ohci_readl(&hc->regs->roothub.status); } |
6f5794a6 | 123 | static inline u32 roothub_portstatus(struct ohci *hc, int i) |
a5496a18 | 124 | { return ohci_readl(&hc->regs->roothub.portstatus[i]); } |
3e326ece | 125 | |
3e326ece | 126 | /* forward declaration */ |
6f5794a6 RB |
127 | static int hc_interrupt(void); |
128 | static void td_submit_job(struct usb_device *dev, unsigned long pipe, | |
129 | void *buffer, int transfer_len, | |
130 | struct devrequest *setup, urb_priv_t *urb, | |
131 | int interval); | |
3e326ece MK |
132 | |
133 | /*-------------------------------------------------------------------------* | |
134 | * URB support functions | |
135 | *-------------------------------------------------------------------------*/ | |
136 | ||
137 | /* free HCD-private data associated with this URB */ | |
138 | ||
6f5794a6 | 139 | static void urb_free_priv(urb_priv_t *urb) |
3e326ece MK |
140 | { |
141 | int i; | |
142 | int last; | |
6f5794a6 | 143 | struct td *td; |
3e326ece MK |
144 | |
145 | last = urb->length - 1; | |
146 | if (last >= 0) { | |
147 | for (i = 0; i <= last; i++) { | |
148 | td = urb->td[i]; | |
149 | if (td) { | |
150 | td->usb_dev = NULL; | |
151 | urb->td[i] = NULL; | |
152 | } | |
153 | } | |
154 | } | |
4dae14ce | 155 | free(urb); |
3e326ece MK |
156 | } |
157 | ||
158 | /*-------------------------------------------------------------------------*/ | |
159 | ||
160 | #ifdef DEBUG | |
6f5794a6 | 161 | static int sohci_get_current_frame_number(struct usb_device *dev); |
3e326ece MK |
162 | |
163 | /* debug| print the main components of an URB | |
164 | * small: 0) header + data packets 1) just header */ | |
165 | ||
6f5794a6 RB |
166 | static void pkt_print(urb_priv_t *purb, struct usb_device *dev, |
167 | unsigned long pipe, void *buffer, int transfer_len, | |
168 | struct devrequest *setup, char *str, int small) | |
3e326ece | 169 | { |
6f5794a6 | 170 | dbg("%s URB:[%4x] dev:%2lu,ep:%2lu-%c,type:%s,len:%d/%d stat:%#lx", |
3e326ece | 171 | str, |
6f5794a6 RB |
172 | sohci_get_current_frame_number(dev), |
173 | usb_pipedevice(pipe), | |
174 | usb_pipeendpoint(pipe), | |
175 | usb_pipeout(pipe)? 'O': 'I', | |
176 | usb_pipetype(pipe) < 2 ? \ | |
177 | (usb_pipeint(pipe)? "INTR": "ISOC"): \ | |
178 | (usb_pipecontrol(pipe)? "CTRL": "BULK"), | |
4dae14ce | 179 | (purb ? purb->actual_length : 0), |
3e326ece MK |
180 | transfer_len, dev->status); |
181 | #ifdef OHCI_VERBOSE_DEBUG | |
182 | if (!small) { | |
183 | int i, len; | |
184 | ||
6f5794a6 RB |
185 | if (usb_pipecontrol(pipe)) { |
186 | printf(__FILE__ ": cmd(8):"); | |
3e326ece | 187 | for (i = 0; i < 8 ; i++) |
6f5794a6 RB |
188 | printf(" %02x", ((__u8 *) setup) [i]); |
189 | printf("\n"); | |
3e326ece MK |
190 | } |
191 | if (transfer_len > 0 && buffer) { | |
6f5794a6 | 192 | printf(__FILE__ ": data(%d/%d):", |
4dae14ce | 193 | (purb ? purb->actual_length : 0), |
3e326ece | 194 | transfer_len); |
6f5794a6 | 195 | len = usb_pipeout(pipe)? transfer_len: |
4dae14ce | 196 | (purb ? purb->actual_length : 0); |
3e326ece | 197 | for (i = 0; i < 16 && i < len; i++) |
6f5794a6 RB |
198 | printf(" %02x", ((__u8 *) buffer) [i]); |
199 | printf("%s\n", i < len? "...": ""); | |
3e326ece MK |
200 | } |
201 | } | |
202 | #endif | |
203 | } | |
204 | ||
6f5794a6 RB |
205 | /* just for debugging; prints non-empty branches of the int ed tree |
206 | * inclusive iso eds */ | |
207 | void ep_print_int_eds(ohci_t *ohci, char *str) | |
208 | { | |
3e326ece | 209 | int i, j; |
6f5794a6 RB |
210 | __u32 *ed_p; |
211 | for (i = 0; i < 32; i++) { | |
3e326ece MK |
212 | j = 5; |
213 | ed_p = &(ohci->hcca->int_table [i]); | |
214 | if (*ed_p == 0) | |
215 | continue; | |
6f5794a6 | 216 | printf(__FILE__ ": %s branch int %2d(%2x):", str, i, i); |
3e326ece MK |
217 | while (*ed_p != 0 && j--) { |
218 | ed_t *ed = (ed_t *)m32_swap(ed_p); | |
6f5794a6 | 219 | printf(" ed: %4x;", ed->hwINFO); |
3e326ece MK |
220 | ed_p = &ed->hwNextED; |
221 | } | |
6f5794a6 | 222 | printf("\n"); |
3e326ece MK |
223 | } |
224 | } | |
225 | ||
6f5794a6 | 226 | static void ohci_dump_intr_mask(char *label, __u32 mask) |
3e326ece | 227 | { |
6f5794a6 | 228 | dbg("%s: 0x%08x%s%s%s%s%s%s%s%s%s", |
3e326ece MK |
229 | label, |
230 | mask, | |
231 | (mask & OHCI_INTR_MIE) ? " MIE" : "", | |
232 | (mask & OHCI_INTR_OC) ? " OC" : "", | |
233 | (mask & OHCI_INTR_RHSC) ? " RHSC" : "", | |
234 | (mask & OHCI_INTR_FNO) ? " FNO" : "", | |
235 | (mask & OHCI_INTR_UE) ? " UE" : "", | |
236 | (mask & OHCI_INTR_RD) ? " RD" : "", | |
237 | (mask & OHCI_INTR_SF) ? " SF" : "", | |
238 | (mask & OHCI_INTR_WDH) ? " WDH" : "", | |
239 | (mask & OHCI_INTR_SO) ? " SO" : "" | |
240 | ); | |
241 | } | |
242 | ||
6f5794a6 | 243 | static void maybe_print_eds(char *label, __u32 value) |
3e326ece MK |
244 | { |
245 | ed_t *edp = (ed_t *)value; | |
246 | ||
247 | if (value) { | |
6f5794a6 RB |
248 | dbg("%s %08x", label, value); |
249 | dbg("%08x", edp->hwINFO); | |
250 | dbg("%08x", edp->hwTailP); | |
251 | dbg("%08x", edp->hwHeadP); | |
252 | dbg("%08x", edp->hwNextED); | |
3e326ece MK |
253 | } |
254 | } | |
255 | ||
6f5794a6 | 256 | static char *hcfs2string(int state) |
3e326ece MK |
257 | { |
258 | switch (state) { | |
6f5794a6 RB |
259 | case OHCI_USB_RESET: return "reset"; |
260 | case OHCI_USB_RESUME: return "resume"; | |
261 | case OHCI_USB_OPER: return "operational"; | |
262 | case OHCI_USB_SUSPEND: return "suspend"; | |
3e326ece MK |
263 | } |
264 | return "?"; | |
265 | } | |
266 | ||
267 | /* dump control and status registers */ | |
6f5794a6 | 268 | static void ohci_dump_status(ohci_t *controller) |
3e326ece MK |
269 | { |
270 | struct ohci_regs *regs = controller->regs; | |
271 | __u32 temp; | |
272 | ||
a5496a18 | 273 | temp = ohci_readl(®s->revision) & 0xff; |
3e326ece | 274 | if (temp != 0x10) |
6f5794a6 | 275 | dbg("spec %d.%d", (temp >> 4), (temp & 0x0f)); |
3e326ece | 276 | |
a5496a18 | 277 | temp = ohci_readl(®s->control); |
6f5794a6 | 278 | dbg("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, |
3e326ece MK |
279 | (temp & OHCI_CTRL_RWE) ? " RWE" : "", |
280 | (temp & OHCI_CTRL_RWC) ? " RWC" : "", | |
281 | (temp & OHCI_CTRL_IR) ? " IR" : "", | |
6f5794a6 | 282 | hcfs2string(temp & OHCI_CTRL_HCFS), |
3e326ece MK |
283 | (temp & OHCI_CTRL_BLE) ? " BLE" : "", |
284 | (temp & OHCI_CTRL_CLE) ? " CLE" : "", | |
285 | (temp & OHCI_CTRL_IE) ? " IE" : "", | |
286 | (temp & OHCI_CTRL_PLE) ? " PLE" : "", | |
287 | temp & OHCI_CTRL_CBSR | |
288 | ); | |
289 | ||
a5496a18 | 290 | temp = ohci_readl(®s->cmdstatus); |
6f5794a6 | 291 | dbg("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, |
3e326ece MK |
292 | (temp & OHCI_SOC) >> 16, |
293 | (temp & OHCI_OCR) ? " OCR" : "", | |
294 | (temp & OHCI_BLF) ? " BLF" : "", | |
295 | (temp & OHCI_CLF) ? " CLF" : "", | |
296 | (temp & OHCI_HCR) ? " HCR" : "" | |
297 | ); | |
298 | ||
a5496a18 BB |
299 | ohci_dump_intr_mask("intrstatus", ohci_readl(®s->intrstatus)); |
300 | ohci_dump_intr_mask("intrenable", ohci_readl(®s->intrenable)); | |
3e326ece | 301 | |
a5496a18 BB |
302 | maybe_print_eds("ed_periodcurrent", |
303 | ohci_readl(®s->ed_periodcurrent)); | |
3e326ece | 304 | |
a5496a18 BB |
305 | maybe_print_eds("ed_controlhead", ohci_readl(®s->ed_controlhead)); |
306 | maybe_print_eds("ed_controlcurrent", | |
307 | ohci_readl(®s->ed_controlcurrent)); | |
3e326ece | 308 | |
a5496a18 BB |
309 | maybe_print_eds("ed_bulkhead", ohci_readl(®s->ed_bulkhead)); |
310 | maybe_print_eds("ed_bulkcurrent", ohci_readl(®s->ed_bulkcurrent)); | |
3e326ece | 311 | |
a5496a18 | 312 | maybe_print_eds("donehead", ohci_readl(®s->donehead)); |
3e326ece MK |
313 | } |
314 | ||
6f5794a6 | 315 | static void ohci_dump_roothub(ohci_t *controller, int verbose) |
3e326ece MK |
316 | { |
317 | __u32 temp, ndp, i; | |
318 | ||
6f5794a6 | 319 | temp = roothub_a(controller); |
3e326ece MK |
320 | ndp = (temp & RH_A_NDP); |
321 | #ifdef CONFIG_AT91C_PQFP_UHPBUG | |
322 | ndp = (ndp == 2) ? 1:0; | |
3e326ece MK |
323 | #endif |
324 | if (verbose) { | |
6f5794a6 | 325 | dbg("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, |
3e326ece MK |
326 | ((temp & RH_A_POTPGT) >> 24) & 0xff, |
327 | (temp & RH_A_NOCP) ? " NOCP" : "", | |
328 | (temp & RH_A_OCPM) ? " OCPM" : "", | |
329 | (temp & RH_A_DT) ? " DT" : "", | |
330 | (temp & RH_A_NPS) ? " NPS" : "", | |
331 | (temp & RH_A_PSM) ? " PSM" : "", | |
332 | ndp | |
333 | ); | |
6f5794a6 RB |
334 | temp = roothub_b(controller); |
335 | dbg("roothub.b: %08x PPCM=%04x DR=%04x", | |
3e326ece MK |
336 | temp, |
337 | (temp & RH_B_PPCM) >> 16, | |
338 | (temp & RH_B_DR) | |
339 | ); | |
6f5794a6 RB |
340 | temp = roothub_status(controller); |
341 | dbg("roothub.status: %08x%s%s%s%s%s%s", | |
3e326ece MK |
342 | temp, |
343 | (temp & RH_HS_CRWE) ? " CRWE" : "", | |
344 | (temp & RH_HS_OCIC) ? " OCIC" : "", | |
345 | (temp & RH_HS_LPSC) ? " LPSC" : "", | |
346 | (temp & RH_HS_DRWE) ? " DRWE" : "", | |
347 | (temp & RH_HS_OCI) ? " OCI" : "", | |
348 | (temp & RH_HS_LPS) ? " LPS" : "" | |
349 | ); | |
350 | } | |
351 | ||
352 | for (i = 0; i < ndp; i++) { | |
6f5794a6 RB |
353 | temp = roothub_portstatus(controller, i); |
354 | dbg("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", | |
3e326ece MK |
355 | i, |
356 | temp, | |
357 | (temp & RH_PS_PRSC) ? " PRSC" : "", | |
358 | (temp & RH_PS_OCIC) ? " OCIC" : "", | |
359 | (temp & RH_PS_PSSC) ? " PSSC" : "", | |
360 | (temp & RH_PS_PESC) ? " PESC" : "", | |
361 | (temp & RH_PS_CSC) ? " CSC" : "", | |
362 | ||
363 | (temp & RH_PS_LSDA) ? " LSDA" : "", | |
364 | (temp & RH_PS_PPS) ? " PPS" : "", | |
365 | (temp & RH_PS_PRS) ? " PRS" : "", | |
366 | (temp & RH_PS_POCI) ? " POCI" : "", | |
367 | (temp & RH_PS_PSS) ? " PSS" : "", | |
368 | ||
369 | (temp & RH_PS_PES) ? " PES" : "", | |
370 | (temp & RH_PS_CCS) ? " CCS" : "" | |
371 | ); | |
372 | } | |
373 | } | |
374 | ||
6f5794a6 | 375 | static void ohci_dump(ohci_t *controller, int verbose) |
3e326ece | 376 | { |
6f5794a6 | 377 | dbg("OHCI controller usb-%s state", controller->slot_name); |
3e326ece MK |
378 | |
379 | /* dumps some of the state we know about */ | |
6f5794a6 | 380 | ohci_dump_status(controller); |
3e326ece | 381 | if (verbose) |
6f5794a6 RB |
382 | ep_print_int_eds(controller, "hcca"); |
383 | dbg("hcca frame #%04x", controller->hcca->frame_no); | |
384 | ohci_dump_roothub(controller, 1); | |
2596f5b9 | 385 | } |
3e326ece MK |
386 | #endif /* DEBUG */ |
387 | ||
388 | /*-------------------------------------------------------------------------* | |
389 | * Interface functions (URB) | |
390 | *-------------------------------------------------------------------------*/ | |
391 | ||
392 | /* get a transfer request */ | |
393 | ||
4dae14ce | 394 | int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup) |
3e326ece MK |
395 | { |
396 | ohci_t *ohci; | |
6f5794a6 | 397 | ed_t *ed; |
4dae14ce | 398 | urb_priv_t *purb_priv = urb; |
3e326ece | 399 | int i, size = 0; |
4dae14ce ZW |
400 | struct usb_device *dev = urb->dev; |
401 | unsigned long pipe = urb->pipe; | |
402 | void *buffer = urb->transfer_buffer; | |
403 | int transfer_len = urb->transfer_buffer_length; | |
404 | int interval = urb->interval; | |
3e326ece MK |
405 | |
406 | ohci = &gohci; | |
407 | ||
408 | /* when controller's hung, permit only roothub cleanup attempts | |
409 | * such as powering down ports */ | |
410 | if (ohci->disabled) { | |
411 | err("sohci_submit_job: EPIPE"); | |
412 | return -1; | |
413 | } | |
ae79f606 | 414 | |
6f5794a6 RB |
415 | /* we're about to begin a new transaction here so mark the |
416 | * URB unfinished */ | |
4dae14ce | 417 | urb->finished = 0; |
3e326ece MK |
418 | |
419 | /* every endpoint has a ed, locate and fill it */ | |
6f5794a6 RB |
420 | ed = ep_add_ed(dev, pipe, interval, 1); |
421 | if (!ed) { | |
3e326ece MK |
422 | err("sohci_submit_job: ENOMEM"); |
423 | return -1; | |
424 | } | |
425 | ||
426 | /* for the private part of the URB we need the number of TDs (size) */ | |
6f5794a6 RB |
427 | switch (usb_pipetype(pipe)) { |
428 | case PIPE_BULK: /* one TD for every 4096 Byte */ | |
429 | size = (transfer_len - 1) / 4096 + 1; | |
430 | break; | |
431 | case PIPE_CONTROL:/* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ | |
432 | size = (transfer_len == 0)? 2: | |
433 | (transfer_len - 1) / 4096 + 3; | |
434 | break; | |
435 | case PIPE_INTERRUPT: /* 1 TD */ | |
436 | size = 1; | |
437 | break; | |
3e326ece MK |
438 | } |
439 | ||
4dae14ce ZW |
440 | ed->purb = urb; |
441 | ||
3e326ece MK |
442 | if (size >= (N_URB_TD - 1)) { |
443 | err("need %d TDs, only have %d", size, N_URB_TD); | |
444 | return -1; | |
445 | } | |
3e326ece MK |
446 | purb_priv->pipe = pipe; |
447 | ||
448 | /* fill the private part of the URB */ | |
449 | purb_priv->length = size; | |
450 | purb_priv->ed = ed; | |
451 | purb_priv->actual_length = 0; | |
452 | ||
453 | /* allocate the TDs */ | |
454 | /* note that td[0] was allocated in ep_add_ed */ | |
455 | for (i = 0; i < size; i++) { | |
6f5794a6 | 456 | purb_priv->td[i] = td_alloc(dev); |
3e326ece MK |
457 | if (!purb_priv->td[i]) { |
458 | purb_priv->length = i; | |
6f5794a6 | 459 | urb_free_priv(purb_priv); |
3e326ece MK |
460 | err("sohci_submit_job: ENOMEM"); |
461 | return -1; | |
462 | } | |
463 | } | |
464 | ||
465 | if (ed->state == ED_NEW || (ed->state & ED_DEL)) { | |
6f5794a6 | 466 | urb_free_priv(purb_priv); |
3e326ece MK |
467 | err("sohci_submit_job: EINVAL"); |
468 | return -1; | |
469 | } | |
470 | ||
471 | /* link the ed into a chain if is not already */ | |
472 | if (ed->state != ED_OPER) | |
6f5794a6 | 473 | ep_link(ohci, ed); |
3e326ece MK |
474 | |
475 | /* fill the TDs and link it to the ed */ | |
6f5794a6 RB |
476 | td_submit_job(dev, pipe, buffer, transfer_len, |
477 | setup, purb_priv, interval); | |
3e326ece MK |
478 | |
479 | return 0; | |
480 | } | |
481 | ||
4dae14ce ZW |
482 | static inline int sohci_return_job(struct ohci *hc, urb_priv_t *urb) |
483 | { | |
484 | struct ohci_regs *regs = hc->regs; | |
485 | ||
6f5794a6 | 486 | switch (usb_pipetype(urb->pipe)) { |
4dae14ce ZW |
487 | case PIPE_INTERRUPT: |
488 | /* implicitly requeued */ | |
489 | if (urb->dev->irq_handle && | |
490 | (urb->dev->irq_act_len = urb->actual_length)) { | |
a5496a18 BB |
491 | ohci_writel(OHCI_INTR_WDH, ®s->intrenable); |
492 | ohci_readl(®s->intrenable); /* PCI posting flush */ | |
4dae14ce | 493 | urb->dev->irq_handle(urb->dev); |
a5496a18 BB |
494 | ohci_writel(OHCI_INTR_WDH, ®s->intrdisable); |
495 | ohci_readl(®s->intrdisable); /* PCI posting flush */ | |
4dae14ce ZW |
496 | } |
497 | urb->actual_length = 0; | |
6f5794a6 | 498 | td_submit_job( |
4dae14ce ZW |
499 | urb->dev, |
500 | urb->pipe, | |
501 | urb->transfer_buffer, | |
502 | urb->transfer_buffer_length, | |
503 | NULL, | |
504 | urb, | |
505 | urb->interval); | |
506 | break; | |
507 | case PIPE_CONTROL: | |
508 | case PIPE_BULK: | |
509 | break; | |
510 | default: | |
511 | return 0; | |
512 | } | |
513 | return 1; | |
514 | } | |
515 | ||
3e326ece MK |
516 | /*-------------------------------------------------------------------------*/ |
517 | ||
518 | #ifdef DEBUG | |
519 | /* tell us the current USB frame number */ | |
520 | ||
6f5794a6 | 521 | static int sohci_get_current_frame_number(struct usb_device *usb_dev) |
3e326ece MK |
522 | { |
523 | ohci_t *ohci = &gohci; | |
524 | ||
6f5794a6 | 525 | return m16_swap(ohci->hcca->frame_no); |
3e326ece MK |
526 | } |
527 | #endif | |
528 | ||
4dae14ce ZW |
529 | /*-------------------------------------------------------------------------* |
530 | * ED handling functions | |
531 | *-------------------------------------------------------------------------*/ | |
532 | ||
533 | /* search for the right branch to insert an interrupt ed into the int tree | |
534 | * do some load ballancing; | |
535 | * returns the branch and | |
536 | * sets the interval to interval = 2^integer (ld (interval)) */ | |
537 | ||
6f5794a6 | 538 | static int ep_int_ballance(ohci_t *ohci, int interval, int load) |
4dae14ce ZW |
539 | { |
540 | int i, branch = 0; | |
541 | ||
542 | /* search for the least loaded interrupt endpoint | |
543 | * branch of all 32 branches | |
544 | */ | |
545 | for (i = 0; i < 32; i++) | |
546 | if (ohci->ohci_int_load [branch] > ohci->ohci_int_load [i]) | |
547 | branch = i; | |
548 | ||
549 | branch = branch % interval; | |
550 | for (i = branch; i < 32; i += interval) | |
551 | ohci->ohci_int_load [i] += load; | |
552 | ||
553 | return branch; | |
554 | } | |
555 | ||
556 | /*-------------------------------------------------------------------------*/ | |
557 | ||
558 | /* 2^int( ld (inter)) */ | |
559 | ||
6f5794a6 | 560 | static int ep_2_n_interval(int inter) |
4dae14ce ZW |
561 | { |
562 | int i; | |
6f5794a6 | 563 | for (i = 0; ((inter >> i) > 1) && (i < 5); i++); |
4dae14ce ZW |
564 | return 1 << i; |
565 | } | |
566 | ||
567 | /*-------------------------------------------------------------------------*/ | |
568 | ||
569 | /* the int tree is a binary tree | |
6f5794a6 RB |
570 | * in order to process it sequentially the indexes of the branches have to |
571 | * be mapped the mapping reverses the bits of a word of num_bits length */ | |
572 | static int ep_rev(int num_bits, int word) | |
4dae14ce ZW |
573 | { |
574 | int i, wout = 0; | |
575 | ||
576 | for (i = 0; i < num_bits; i++) | |
577 | wout |= (((word >> i) & 1) << (num_bits - i - 1)); | |
578 | return wout; | |
579 | } | |
580 | ||
3e326ece MK |
581 | /*-------------------------------------------------------------------------* |
582 | * ED handling functions | |
583 | *-------------------------------------------------------------------------*/ | |
584 | ||
585 | /* link an ed into one of the HC chains */ | |
586 | ||
6f5794a6 | 587 | static int ep_link(ohci_t *ohci, ed_t *edi) |
3e326ece MK |
588 | { |
589 | volatile ed_t *ed = edi; | |
4dae14ce ZW |
590 | int int_branch; |
591 | int i; | |
592 | int inter; | |
593 | int interval; | |
594 | int load; | |
6f5794a6 | 595 | __u32 *ed_p; |
3e326ece MK |
596 | |
597 | ed->state = ED_OPER; | |
4dae14ce | 598 | ed->int_interval = 0; |
3e326ece MK |
599 | |
600 | switch (ed->type) { | |
601 | case PIPE_CONTROL: | |
602 | ed->hwNextED = 0; | |
6f5794a6 | 603 | if (ohci->ed_controltail == NULL) |
a5496a18 | 604 | ohci_writel(ed, &ohci->regs->ed_controlhead); |
6f5794a6 RB |
605 | else |
606 | ohci->ed_controltail->hwNextED = | |
607 | m32_swap((unsigned long)ed); | |
608 | ||
3e326ece MK |
609 | ed->ed_prev = ohci->ed_controltail; |
610 | if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && | |
611 | !ohci->ed_rm_list[1] && !ohci->sleeping) { | |
612 | ohci->hc_control |= OHCI_CTRL_CLE; | |
a5496a18 | 613 | ohci_writel(ohci->hc_control, &ohci->regs->control); |
3e326ece MK |
614 | } |
615 | ohci->ed_controltail = edi; | |
616 | break; | |
617 | ||
618 | case PIPE_BULK: | |
619 | ed->hwNextED = 0; | |
6f5794a6 | 620 | if (ohci->ed_bulktail == NULL) |
a5496a18 | 621 | ohci_writel(ed, &ohci->regs->ed_bulkhead); |
6f5794a6 RB |
622 | else |
623 | ohci->ed_bulktail->hwNextED = | |
624 | m32_swap((unsigned long)ed); | |
625 | ||
3e326ece MK |
626 | ed->ed_prev = ohci->ed_bulktail; |
627 | if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && | |
628 | !ohci->ed_rm_list[1] && !ohci->sleeping) { | |
629 | ohci->hc_control |= OHCI_CTRL_BLE; | |
a5496a18 | 630 | ohci_writel(ohci->hc_control, &ohci->regs->control); |
3e326ece MK |
631 | } |
632 | ohci->ed_bulktail = edi; | |
633 | break; | |
4dae14ce ZW |
634 | |
635 | case PIPE_INTERRUPT: | |
636 | load = ed->int_load; | |
6f5794a6 | 637 | interval = ep_2_n_interval(ed->int_period); |
4dae14ce | 638 | ed->int_interval = interval; |
6f5794a6 | 639 | int_branch = ep_int_ballance(ohci, interval, load); |
4dae14ce ZW |
640 | ed->int_branch = int_branch; |
641 | ||
6f5794a6 | 642 | for (i = 0; i < ep_rev(6, interval); i += inter) { |
4dae14ce | 643 | inter = 1; |
6f5794a6 RB |
644 | for (ed_p = &(ohci->hcca->int_table[\ |
645 | ep_rev(5, i) + int_branch]); | |
646 | (*ed_p != 0) && | |
647 | (((ed_t *)ed_p)->int_interval >= interval); | |
4dae14ce | 648 | ed_p = &(((ed_t *)ed_p)->hwNextED)) |
6f5794a6 RB |
649 | inter = ep_rev(6, |
650 | ((ed_t *)ed_p)->int_interval); | |
4dae14ce | 651 | ed->hwNextED = *ed_p; |
4a8527ef | 652 | *ed_p = m32_swap((unsigned long)ed); |
4dae14ce ZW |
653 | } |
654 | break; | |
3e326ece MK |
655 | } |
656 | return 0; | |
657 | } | |
658 | ||
659 | /*-------------------------------------------------------------------------*/ | |
660 | ||
4dae14ce | 661 | /* scan the periodic table to find and unlink this ED */ |
6f5794a6 RB |
662 | static void periodic_unlink(struct ohci *ohci, volatile struct ed *ed, |
663 | unsigned index, unsigned period) | |
4dae14ce ZW |
664 | { |
665 | for (; index < NUM_INTS; index += period) { | |
666 | __u32 *ed_p = &ohci->hcca->int_table [index]; | |
667 | ||
668 | /* ED might have been unlinked through another path */ | |
669 | while (*ed_p != 0) { | |
6f5794a6 RB |
670 | if (((struct ed *) |
671 | m32_swap((unsigned long)ed_p)) == ed) { | |
4dae14ce ZW |
672 | *ed_p = ed->hwNextED; |
673 | break; | |
674 | } | |
6f5794a6 RB |
675 | ed_p = &(((struct ed *) |
676 | m32_swap((unsigned long)ed_p))->hwNextED); | |
4dae14ce ZW |
677 | } |
678 | } | |
679 | } | |
680 | ||
3e326ece MK |
681 | /* unlink an ed from one of the HC chains. |
682 | * just the link to the ed is unlinked. | |
683 | * the link from the ed still points to another operational ed or 0 | |
684 | * so the HC can eventually finish the processing of the unlinked ed */ | |
685 | ||
6f5794a6 | 686 | static int ep_unlink(ohci_t *ohci, ed_t *edi) |
3e326ece | 687 | { |
53e336e9 | 688 | volatile ed_t *ed = edi; |
4dae14ce | 689 | int i; |
53e336e9 | 690 | |
6f5794a6 | 691 | ed->hwINFO |= m32_swap(OHCI_ED_SKIP); |
3e326ece MK |
692 | |
693 | switch (ed->type) { | |
694 | case PIPE_CONTROL: | |
695 | if (ed->ed_prev == NULL) { | |
696 | if (!ed->hwNextED) { | |
697 | ohci->hc_control &= ~OHCI_CTRL_CLE; | |
a5496a18 BB |
698 | ohci_writel(ohci->hc_control, |
699 | &ohci->regs->control); | |
3e326ece | 700 | } |
a5496a18 | 701 | ohci_writel(m32_swap(*((__u32 *)&ed->hwNextED)), |
6f5794a6 | 702 | &ohci->regs->ed_controlhead); |
3e326ece MK |
703 | } else { |
704 | ed->ed_prev->hwNextED = ed->hwNextED; | |
705 | } | |
706 | if (ohci->ed_controltail == ed) { | |
707 | ohci->ed_controltail = ed->ed_prev; | |
708 | } else { | |
6f5794a6 RB |
709 | ((ed_t *)m32_swap( |
710 | *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; | |
3e326ece MK |
711 | } |
712 | break; | |
713 | ||
714 | case PIPE_BULK: | |
715 | if (ed->ed_prev == NULL) { | |
716 | if (!ed->hwNextED) { | |
717 | ohci->hc_control &= ~OHCI_CTRL_BLE; | |
a5496a18 BB |
718 | ohci_writel(ohci->hc_control, |
719 | &ohci->regs->control); | |
3e326ece | 720 | } |
a5496a18 | 721 | ohci_writel(m32_swap(*((__u32 *)&ed->hwNextED)), |
6f5794a6 | 722 | &ohci->regs->ed_bulkhead); |
3e326ece MK |
723 | } else { |
724 | ed->ed_prev->hwNextED = ed->hwNextED; | |
725 | } | |
726 | if (ohci->ed_bulktail == ed) { | |
727 | ohci->ed_bulktail = ed->ed_prev; | |
728 | } else { | |
6f5794a6 RB |
729 | ((ed_t *)m32_swap( |
730 | *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; | |
3e326ece MK |
731 | } |
732 | break; | |
4dae14ce ZW |
733 | |
734 | case PIPE_INTERRUPT: | |
6f5794a6 | 735 | periodic_unlink(ohci, ed, 0, 1); |
4dae14ce ZW |
736 | for (i = ed->int_branch; i < 32; i += ed->int_interval) |
737 | ohci->ohci_int_load[i] -= ed->int_load; | |
738 | break; | |
3e326ece MK |
739 | } |
740 | ed->state = ED_UNLINK; | |
741 | return 0; | |
742 | } | |
743 | ||
3e326ece MK |
744 | /*-------------------------------------------------------------------------*/ |
745 | ||
ddf83a2f MK |
746 | /* add/reinit an endpoint; this should be done once at the |
747 | * usb_set_configuration command, but the USB stack is a little bit | |
748 | * stateless so we do it at every transaction if the state of the ed | |
749 | * is ED_NEW then a dummy td is added and the state is changed to | |
750 | * ED_UNLINK in all other cases the state is left unchanged the ed | |
751 | * info fields are setted anyway even though most of them should not | |
752 | * change | |
753 | */ | |
6f5794a6 RB |
754 | static ed_t *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe, |
755 | int interval, int load) | |
3e326ece MK |
756 | { |
757 | td_t *td; | |
758 | ed_t *ed_ret; | |
759 | volatile ed_t *ed; | |
760 | ||
6f5794a6 RB |
761 | ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint(pipe) << 1) | |
762 | (usb_pipecontrol(pipe)? 0: usb_pipeout(pipe))]; | |
3e326ece MK |
763 | |
764 | if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { | |
765 | err("ep_add_ed: pending delete"); | |
766 | /* pending delete request */ | |
767 | return NULL; | |
768 | } | |
769 | ||
770 | if (ed->state == ED_NEW) { | |
3e326ece | 771 | /* dummy td; end of td list for ed */ |
6f5794a6 RB |
772 | td = td_alloc(usb_dev); |
773 | ed->hwTailP = m32_swap((unsigned long)td); | |
3e326ece MK |
774 | ed->hwHeadP = ed->hwTailP; |
775 | ed->state = ED_UNLINK; | |
6f5794a6 | 776 | ed->type = usb_pipetype(pipe); |
3e326ece MK |
777 | ohci_dev.ed_cnt++; |
778 | } | |
779 | ||
6f5794a6 RB |
780 | ed->hwINFO = m32_swap(usb_pipedevice(pipe) |
781 | | usb_pipeendpoint(pipe) << 7 | |
782 | | (usb_pipeisoc(pipe)? 0x8000: 0) | |
783 | | (usb_pipecontrol(pipe)? 0: \ | |
784 | (usb_pipeout(pipe)? 0x800: 0x1000)) | |
c60795f4 | 785 | | (usb_dev->speed == USB_SPEED_LOW) << 13 |
6f5794a6 | 786 | | usb_maxpacket(usb_dev, pipe) << 16); |
3e326ece | 787 | |
4dae14ce ZW |
788 | if (ed->type == PIPE_INTERRUPT && ed->state == ED_UNLINK) { |
789 | ed->int_period = interval; | |
790 | ed->int_load = load; | |
791 | } | |
792 | ||
3e326ece MK |
793 | return ed_ret; |
794 | } | |
795 | ||
796 | /*-------------------------------------------------------------------------* | |
797 | * TD handling functions | |
798 | *-------------------------------------------------------------------------*/ | |
799 | ||
800 | /* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ | |
801 | ||
6f5794a6 | 802 | static void td_fill(ohci_t *ohci, unsigned int info, |
3e326ece MK |
803 | void *data, int len, |
804 | struct usb_device *dev, int index, urb_priv_t *urb_priv) | |
805 | { | |
806 | volatile td_t *td, *td_pt; | |
807 | #ifdef OHCI_FILL_TRACE | |
808 | int i; | |
809 | #endif | |
810 | ||
811 | if (index > urb_priv->length) { | |
812 | err("index > length"); | |
813 | return; | |
814 | } | |
815 | /* use this td as the next dummy */ | |
816 | td_pt = urb_priv->td [index]; | |
817 | td_pt->hwNextTD = 0; | |
818 | ||
819 | /* fill the old dummy TD */ | |
6f5794a6 RB |
820 | td = urb_priv->td [index] = |
821 | (td_t *)(m32_swap(urb_priv->ed->hwTailP) & ~0xf); | |
3e326ece MK |
822 | |
823 | td->ed = urb_priv->ed; | |
824 | td->next_dl_td = NULL; | |
825 | td->index = index; | |
826 | td->data = (__u32)data; | |
827 | #ifdef OHCI_FILL_TRACE | |
48867208 | 828 | if (usb_pipebulk(urb_priv->pipe) && usb_pipeout(urb_priv->pipe)) { |
3e326ece | 829 | for (i = 0; i < len; i++) |
6f5794a6 | 830 | printf("td->data[%d] %#2x ", i, ((unsigned char *)td->data)[i]); |
3e326ece MK |
831 | printf("\n"); |
832 | } | |
833 | #endif | |
834 | if (!len) | |
835 | data = 0; | |
836 | ||
6f5794a6 RB |
837 | td->hwINFO = m32_swap(info); |
838 | td->hwCBP = m32_swap((unsigned long)data); | |
3e326ece | 839 | if (data) |
6f5794a6 | 840 | td->hwBE = m32_swap((unsigned long)(data + len - 1)); |
3e326ece MK |
841 | else |
842 | td->hwBE = 0; | |
6f5794a6 RB |
843 | |
844 | td->hwNextTD = m32_swap((unsigned long)td_pt); | |
3e326ece MK |
845 | |
846 | /* append to queue */ | |
847 | td->ed->hwTailP = td->hwNextTD; | |
848 | } | |
849 | ||
850 | /*-------------------------------------------------------------------------*/ | |
851 | ||
852 | /* prepare all TDs of a transfer */ | |
853 | ||
6f5794a6 RB |
854 | static void td_submit_job(struct usb_device *dev, unsigned long pipe, |
855 | void *buffer, int transfer_len, | |
856 | struct devrequest *setup, urb_priv_t *urb, | |
857 | int interval) | |
3e326ece MK |
858 | { |
859 | ohci_t *ohci = &gohci; | |
860 | int data_len = transfer_len; | |
861 | void *data; | |
862 | int cnt = 0; | |
863 | __u32 info = 0; | |
864 | unsigned int toggle = 0; | |
865 | ||
6f5794a6 RB |
866 | /* OHCI handles the DATA-toggles itself, we just use the USB-toggle |
867 | * bits for reseting */ | |
868 | if (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { | |
3e326ece MK |
869 | toggle = TD_T_TOGGLE; |
870 | } else { | |
871 | toggle = TD_T_DATA0; | |
6f5794a6 RB |
872 | usb_settoggle(dev, usb_pipeendpoint(pipe), |
873 | usb_pipeout(pipe), 1); | |
3e326ece MK |
874 | } |
875 | urb->td_cnt = 0; | |
876 | if (data_len) | |
877 | data = buffer; | |
878 | else | |
879 | data = 0; | |
880 | ||
6f5794a6 | 881 | switch (usb_pipetype(pipe)) { |
3e326ece | 882 | case PIPE_BULK: |
6f5794a6 | 883 | info = usb_pipeout(pipe)? |
3e326ece | 884 | TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; |
6f5794a6 RB |
885 | while (data_len > 4096) { |
886 | td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), | |
887 | data, 4096, dev, cnt, urb); | |
3e326ece MK |
888 | data += 4096; data_len -= 4096; cnt++; |
889 | } | |
6f5794a6 | 890 | info = usb_pipeout(pipe)? |
3e326ece | 891 | TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; |
6f5794a6 RB |
892 | td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), data, |
893 | data_len, dev, cnt, urb); | |
3e326ece MK |
894 | cnt++; |
895 | ||
6f5794a6 RB |
896 | if (!ohci->sleeping) { |
897 | /* start bulk list */ | |
a5496a18 | 898 | ohci_writel(OHCI_BLF, &ohci->regs->cmdstatus); |
6f5794a6 | 899 | } |
3e326ece MK |
900 | break; |
901 | ||
902 | case PIPE_CONTROL: | |
6f5794a6 | 903 | /* Setup phase */ |
3e326ece | 904 | info = TD_CC | TD_DP_SETUP | TD_T_DATA0; |
6f5794a6 RB |
905 | td_fill(ohci, info, setup, 8, dev, cnt++, urb); |
906 | ||
907 | /* Optional Data phase */ | |
3e326ece | 908 | if (data_len > 0) { |
6f5794a6 RB |
909 | info = usb_pipeout(pipe)? |
910 | TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : | |
911 | TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; | |
3e326ece | 912 | /* NOTE: mishandles transfers >8K, some >4K */ |
6f5794a6 RB |
913 | td_fill(ohci, info, data, data_len, dev, cnt++, urb); |
914 | } | |
915 | ||
916 | /* Status phase */ | |
917 | info = usb_pipeout(pipe)? | |
918 | TD_CC | TD_DP_IN | TD_T_DATA1: | |
919 | TD_CC | TD_DP_OUT | TD_T_DATA1; | |
920 | td_fill(ohci, info, data, 0, dev, cnt++, urb); | |
921 | ||
922 | if (!ohci->sleeping) { | |
923 | /* start Control list */ | |
a5496a18 | 924 | ohci_writel(OHCI_CLF, &ohci->regs->cmdstatus); |
3e326ece | 925 | } |
3e326ece | 926 | break; |
4dae14ce ZW |
927 | |
928 | case PIPE_INTERRUPT: | |
6f5794a6 | 929 | info = usb_pipeout(urb->pipe)? |
4dae14ce ZW |
930 | TD_CC | TD_DP_OUT | toggle: |
931 | TD_CC | TD_R | TD_DP_IN | toggle; | |
6f5794a6 | 932 | td_fill(ohci, info, data, data_len, dev, cnt++, urb); |
4dae14ce | 933 | break; |
3e326ece MK |
934 | } |
935 | if (urb->length != cnt) | |
936 | dbg("TD LENGTH %d != CNT %d", urb->length, cnt); | |
937 | } | |
938 | ||
939 | /*-------------------------------------------------------------------------* | |
940 | * Done List handling functions | |
941 | *-------------------------------------------------------------------------*/ | |
942 | ||
3e326ece MK |
943 | /* calculate the transfer length and update the urb */ |
944 | ||
6f5794a6 | 945 | static void dl_transfer_length(td_t *td) |
3e326ece | 946 | { |
6bc52ef3 | 947 | __u32 tdBE, tdCBP; |
4dae14ce | 948 | urb_priv_t *lurb_priv = td->ed->purb; |
3e326ece | 949 | |
6f5794a6 RB |
950 | tdBE = m32_swap(td->hwBE); |
951 | tdCBP = m32_swap(td->hwCBP); | |
3e326ece | 952 | |
48867208 | 953 | if (!(usb_pipecontrol(lurb_priv->pipe) && |
3e326ece MK |
954 | ((td->index == 0) || (td->index == lurb_priv->length - 1)))) { |
955 | if (tdBE != 0) { | |
956 | if (td->hwCBP == 0) | |
957 | lurb_priv->actual_length += tdBE - td->data + 1; | |
958 | else | |
959 | lurb_priv->actual_length += tdCBP - td->data; | |
960 | } | |
961 | } | |
962 | } | |
963 | ||
964 | /*-------------------------------------------------------------------------*/ | |
6f5794a6 RB |
965 | static void check_status(td_t *td_list) |
966 | { | |
967 | urb_priv_t *lurb_priv = td_list->ed->purb; | |
968 | int urb_len = lurb_priv->length; | |
969 | __u32 *phwHeadP = &td_list->ed->hwHeadP; | |
970 | int cc; | |
971 | ||
972 | cc = TD_CC_GET(m32_swap(td_list->hwINFO)); | |
973 | if (cc) { | |
974 | err(" USB-error: %s (%x)", cc_to_string[cc], cc); | |
975 | ||
976 | if (*phwHeadP & m32_swap(0x1)) { | |
977 | if (lurb_priv && | |
978 | ((td_list->index + 1) < urb_len)) { | |
979 | *phwHeadP = | |
980 | (lurb_priv->td[urb_len - 1]->hwNextTD &\ | |
981 | m32_swap(0xfffffff0)) | | |
982 | (*phwHeadP & m32_swap(0x2)); | |
983 | ||
984 | lurb_priv->td_cnt += urb_len - | |
985 | td_list->index - 1; | |
986 | } else | |
987 | *phwHeadP &= m32_swap(0xfffffff2); | |
988 | } | |
989 | #ifdef CONFIG_MPC5200 | |
990 | td_list->hwNextTD = 0; | |
991 | #endif | |
992 | } | |
993 | } | |
3e326ece MK |
994 | |
995 | /* replies to the request have to be on a FIFO basis so | |
996 | * we reverse the reversed done-list */ | |
6f5794a6 | 997 | static td_t *dl_reverse_done_list(ohci_t *ohci) |
3e326ece MK |
998 | { |
999 | __u32 td_list_hc; | |
1000 | td_t *td_rev = NULL; | |
1001 | td_t *td_list = NULL; | |
3e326ece | 1002 | |
6f5794a6 | 1003 | td_list_hc = m32_swap(ohci->hcca->done_head) & 0xfffffff0; |
3e326ece MK |
1004 | ohci->hcca->done_head = 0; |
1005 | ||
1006 | while (td_list_hc) { | |
1007 | td_list = (td_t *)td_list_hc; | |
6f5794a6 | 1008 | check_status(td_list); |
3e326ece MK |
1009 | td_list->next_dl_td = td_rev; |
1010 | td_rev = td_list; | |
6f5794a6 | 1011 | td_list_hc = m32_swap(td_list->hwNextTD) & 0xfffffff0; |
3e326ece MK |
1012 | } |
1013 | return td_list; | |
1014 | } | |
1015 | ||
6f5794a6 | 1016 | /*-------------------------------------------------------------------------*/ |
3e326ece MK |
1017 | /*-------------------------------------------------------------------------*/ |
1018 | ||
6f5794a6 RB |
1019 | static void finish_urb(ohci_t *ohci, urb_priv_t *urb, int status) |
1020 | { | |
1021 | if ((status & (ED_OPER | ED_UNLINK)) && (urb->state != URB_DEL)) | |
1022 | urb->finished = sohci_return_job(ohci, urb); | |
1023 | else | |
1024 | dbg("finish_urb: strange.., ED state %x, \n", status); | |
1025 | } | |
1026 | ||
1027 | /* | |
1028 | * Used to take back a TD from the host controller. This would normally be | |
1029 | * called from within dl_done_list, however it may be called directly if the | |
1030 | * HC no longer sees the TD and it has not appeared on the donelist (after | |
1031 | * two frames). This bug has been observed on ZF Micro systems. | |
1032 | */ | |
1033 | static int takeback_td(ohci_t *ohci, td_t *td_list) | |
3e326ece | 1034 | { |
3e326ece | 1035 | ed_t *ed; |
6f5794a6 | 1036 | int cc; |
3e326ece MK |
1037 | int stat = 0; |
1038 | /* urb_t *urb; */ | |
1039 | urb_priv_t *lurb_priv; | |
1040 | __u32 tdINFO, edHeadP, edTailP; | |
1041 | ||
6f5794a6 | 1042 | tdINFO = m32_swap(td_list->hwINFO); |
3e326ece | 1043 | |
6f5794a6 RB |
1044 | ed = td_list->ed; |
1045 | lurb_priv = ed->purb; | |
3e326ece | 1046 | |
6f5794a6 | 1047 | dl_transfer_length(td_list); |
3e326ece | 1048 | |
6f5794a6 | 1049 | lurb_priv->td_cnt++; |
3e326ece | 1050 | |
6f5794a6 RB |
1051 | /* error code of transfer */ |
1052 | cc = TD_CC_GET(tdINFO); | |
1053 | if (cc) { | |
1054 | err("USB-error: %s (%x)", cc_to_string[cc], cc); | |
1055 | stat = cc_to_error[cc]; | |
1056 | } | |
ae79f606 | 1057 | |
6f5794a6 RB |
1058 | /* see if this done list makes for all TD's of current URB, |
1059 | * and mark the URB finished if so */ | |
1060 | if (lurb_priv->td_cnt == lurb_priv->length) | |
1061 | finish_urb(ohci, lurb_priv, ed->state); | |
1062 | ||
1063 | dbg("dl_done_list: processing TD %x, len %x\n", | |
1064 | lurb_priv->td_cnt, lurb_priv->length); | |
1065 | ||
48867208 | 1066 | if (ed->state != ED_NEW && (!usb_pipeint(lurb_priv->pipe))) { |
6f5794a6 RB |
1067 | edHeadP = m32_swap(ed->hwHeadP) & 0xfffffff0; |
1068 | edTailP = m32_swap(ed->hwTailP); | |
1069 | ||
1070 | /* unlink eds if they are not busy */ | |
1071 | if ((edHeadP == edTailP) && (ed->state == ED_OPER)) | |
1072 | ep_unlink(ohci, ed); | |
1073 | } | |
1074 | return stat; | |
1075 | } | |
3e326ece | 1076 | |
6f5794a6 RB |
1077 | static int dl_done_list(ohci_t *ohci) |
1078 | { | |
1079 | int stat = 0; | |
1080 | td_t *td_list = dl_reverse_done_list(ohci); | |
1081 | ||
1082 | while (td_list) { | |
1083 | td_t *td_next = td_list->next_dl_td; | |
1084 | stat = takeback_td(ohci, td_list); | |
1085 | td_list = td_next; | |
3e326ece MK |
1086 | } |
1087 | return stat; | |
1088 | } | |
1089 | ||
1090 | /*-------------------------------------------------------------------------* | |
1091 | * Virtual Root Hub | |
1092 | *-------------------------------------------------------------------------*/ | |
1093 | ||
eb838e7d | 1094 | #include <usbroothubdes.h> |
3e326ece MK |
1095 | |
1096 | /* Hub class-specific descriptor is constructed dynamically */ | |
1097 | ||
3e326ece MK |
1098 | /*-------------------------------------------------------------------------*/ |
1099 | ||
1100 | #define OK(x) len = (x); break | |
1101 | #ifdef DEBUG | |
a5496a18 | 1102 | #define WR_RH_STAT(x) {info("WR:status %#8x", (x)); ohci_writel((x), \ |
6f5794a6 RB |
1103 | &gohci.regs->roothub.status); } |
1104 | #define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, \ | |
a5496a18 | 1105 | (x)); ohci_writel((x), &gohci.regs->roothub.portstatus[wIndex-1]); } |
3e326ece | 1106 | #else |
a5496a18 BB |
1107 | #define WR_RH_STAT(x) ohci_writel((x), &gohci.regs->roothub.status) |
1108 | #define WR_RH_PORTSTAT(x) ohci_writel((x), \ | |
6f5794a6 | 1109 | &gohci.regs->roothub.portstatus[wIndex-1]) |
3e326ece MK |
1110 | #endif |
1111 | #define RD_RH_STAT roothub_status(&gohci) | |
6f5794a6 | 1112 | #define RD_RH_PORTSTAT roothub_portstatus(&gohci, wIndex-1) |
3e326ece MK |
1113 | |
1114 | /* request to virtual root hub */ | |
1115 | ||
1116 | int rh_check_port_status(ohci_t *controller) | |
1117 | { | |
1118 | __u32 temp, ndp, i; | |
1119 | int res; | |
1120 | ||
1121 | res = -1; | |
6f5794a6 | 1122 | temp = roothub_a(controller); |
3e326ece MK |
1123 | ndp = (temp & RH_A_NDP); |
1124 | #ifdef CONFIG_AT91C_PQFP_UHPBUG | |
1125 | ndp = (ndp == 2) ? 1:0; | |
1126 | #endif | |
1127 | for (i = 0; i < ndp; i++) { | |
6f5794a6 | 1128 | temp = roothub_portstatus(controller, i); |
3e326ece MK |
1129 | /* check for a device disconnect */ |
1130 | if (((temp & (RH_PS_PESC | RH_PS_CSC)) == | |
1131 | (RH_PS_PESC | RH_PS_CSC)) && | |
1132 | ((temp & RH_PS_CCS) == 0)) { | |
1133 | res = i; | |
1134 | break; | |
1135 | } | |
1136 | } | |
1137 | return res; | |
1138 | } | |
1139 | ||
1140 | static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, | |
1141 | void *buffer, int transfer_len, struct devrequest *cmd) | |
1142 | { | |
6f5794a6 | 1143 | void *data = buffer; |
3e326ece MK |
1144 | int leni = transfer_len; |
1145 | int len = 0; | |
1146 | int stat = 0; | |
3e326ece MK |
1147 | __u16 bmRType_bReq; |
1148 | __u16 wValue; | |
1149 | __u16 wIndex; | |
1150 | __u16 wLength; | |
f1273f11 | 1151 | ALLOC_ALIGN_BUFFER(__u8, databuf, 16, sizeof(u32)); |
5f6aa03f | 1152 | |
3e326ece | 1153 | #ifdef DEBUG |
6f5794a6 RB |
1154 | pkt_print(NULL, dev, pipe, buffer, transfer_len, |
1155 | cmd, "SUB(rh)", usb_pipein(pipe)); | |
3e326ece | 1156 | #else |
5b84dd67 | 1157 | mdelay(1); |
3e326ece | 1158 | #endif |
48867208 | 1159 | if (usb_pipeint(pipe)) { |
3e326ece MK |
1160 | info("Root-Hub submit IRQ: NOT implemented"); |
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | bmRType_bReq = cmd->requesttype | (cmd->request << 8); | |
6f5794a6 RB |
1165 | wValue = le16_to_cpu(cmd->value); |
1166 | wIndex = le16_to_cpu(cmd->index); | |
1167 | wLength = le16_to_cpu(cmd->length); | |
3e326ece MK |
1168 | |
1169 | info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", | |
1170 | dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); | |
1171 | ||
1172 | switch (bmRType_bReq) { | |
1173 | /* Request Destination: | |
1174 | without flags: Device, | |
1175 | RH_INTERFACE: interface, | |
1176 | RH_ENDPOINT: endpoint, | |
1177 | RH_CLASS means HUB here, | |
1178 | RH_OTHER | RH_CLASS almost ever means HUB_PORT here | |
1179 | */ | |
1180 | ||
1181 | case RH_GET_STATUS: | |
f1273f11 | 1182 | *(u16 *)databuf = cpu_to_le16(1); |
6f5794a6 | 1183 | OK(2); |
3e326ece | 1184 | case RH_GET_STATUS | RH_INTERFACE: |
f1273f11 | 1185 | *(u16 *)databuf = cpu_to_le16(0); |
6f5794a6 | 1186 | OK(2); |
3e326ece | 1187 | case RH_GET_STATUS | RH_ENDPOINT: |
f1273f11 | 1188 | *(u16 *)databuf = cpu_to_le16(0); |
6f5794a6 | 1189 | OK(2); |
3e326ece | 1190 | case RH_GET_STATUS | RH_CLASS: |
f1273f11 | 1191 | *(u32 *)databuf = cpu_to_le32( |
3e326ece | 1192 | RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); |
6f5794a6 | 1193 | OK(4); |
3e326ece | 1194 | case RH_GET_STATUS | RH_OTHER | RH_CLASS: |
f1273f11 | 1195 | *(u32 *)databuf = cpu_to_le32(RD_RH_PORTSTAT); |
6f5794a6 | 1196 | OK(4); |
3e326ece MK |
1197 | |
1198 | case RH_CLEAR_FEATURE | RH_ENDPOINT: | |
1199 | switch (wValue) { | |
6f5794a6 RB |
1200 | case (RH_ENDPOINT_STALL): |
1201 | OK(0); | |
3e326ece MK |
1202 | } |
1203 | break; | |
1204 | ||
1205 | case RH_CLEAR_FEATURE | RH_CLASS: | |
1206 | switch (wValue) { | |
6f5794a6 RB |
1207 | case RH_C_HUB_LOCAL_POWER: |
1208 | OK(0); | |
1209 | case (RH_C_HUB_OVER_CURRENT): | |
1210 | WR_RH_STAT(RH_HS_OCIC); | |
1211 | OK(0); | |
3e326ece MK |
1212 | } |
1213 | break; | |
1214 | ||
1215 | case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: | |
1216 | switch (wValue) { | |
6f5794a6 RB |
1217 | case (RH_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_CCS); OK(0); |
1218 | case (RH_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_POCI); OK(0); | |
1219 | case (RH_PORT_POWER): WR_RH_PORTSTAT(RH_PS_LSDA); OK(0); | |
1220 | case (RH_C_PORT_CONNECTION): WR_RH_PORTSTAT(RH_PS_CSC); OK(0); | |
1221 | case (RH_C_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_PESC); OK(0); | |
1222 | case (RH_C_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_PSSC); OK(0); | |
1223 | case (RH_C_PORT_OVER_CURRENT):WR_RH_PORTSTAT(RH_PS_OCIC); OK(0); | |
1224 | case (RH_C_PORT_RESET): WR_RH_PORTSTAT(RH_PS_PRSC); OK(0); | |
3e326ece MK |
1225 | } |
1226 | break; | |
1227 | ||
1228 | case RH_SET_FEATURE | RH_OTHER | RH_CLASS: | |
1229 | switch (wValue) { | |
6f5794a6 RB |
1230 | case (RH_PORT_SUSPEND): |
1231 | WR_RH_PORTSTAT(RH_PS_PSS); OK(0); | |
1232 | case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ | |
1233 | if (RD_RH_PORTSTAT & RH_PS_CCS) | |
1234 | WR_RH_PORTSTAT(RH_PS_PRS); | |
1235 | OK(0); | |
1236 | case (RH_PORT_POWER): | |
1237 | WR_RH_PORTSTAT(RH_PS_PPS); | |
5b84dd67 | 1238 | mdelay(100); |
6f5794a6 RB |
1239 | OK(0); |
1240 | case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ | |
1241 | if (RD_RH_PORTSTAT & RH_PS_CCS) | |
1242 | WR_RH_PORTSTAT(RH_PS_PES); | |
1243 | OK(0); | |
3e326ece MK |
1244 | } |
1245 | break; | |
1246 | ||
6f5794a6 RB |
1247 | case RH_SET_ADDRESS: |
1248 | gohci.rh.devnum = wValue; | |
1249 | OK(0); | |
3e326ece MK |
1250 | |
1251 | case RH_GET_DESCRIPTOR: | |
1252 | switch ((wValue & 0xff00) >> 8) { | |
6f5794a6 RB |
1253 | case (0x01): /* device descriptor */ |
1254 | len = min_t(unsigned int, | |
1255 | leni, | |
1256 | min_t(unsigned int, | |
1257 | sizeof(root_hub_dev_des), | |
1258 | wLength)); | |
f1273f11 | 1259 | databuf = root_hub_dev_des; OK(len); |
6f5794a6 RB |
1260 | case (0x02): /* configuration descriptor */ |
1261 | len = min_t(unsigned int, | |
1262 | leni, | |
1263 | min_t(unsigned int, | |
1264 | sizeof(root_hub_config_des), | |
1265 | wLength)); | |
f1273f11 | 1266 | databuf = root_hub_config_des; OK(len); |
6f5794a6 RB |
1267 | case (0x03): /* string descriptors */ |
1268 | if (wValue == 0x0300) { | |
3e326ece | 1269 | len = min_t(unsigned int, |
6f5794a6 RB |
1270 | leni, |
1271 | min_t(unsigned int, | |
1272 | sizeof(root_hub_str_index0), | |
1273 | wLength)); | |
f1273f11 | 1274 | databuf = root_hub_str_index0; |
6f5794a6 | 1275 | OK(len); |
3e326ece | 1276 | } |
6f5794a6 RB |
1277 | if (wValue == 0x0301) { |
1278 | len = min_t(unsigned int, | |
1279 | leni, | |
1280 | min_t(unsigned int, | |
1281 | sizeof(root_hub_str_index1), | |
1282 | wLength)); | |
f1273f11 | 1283 | databuf = root_hub_str_index1; |
6f5794a6 RB |
1284 | OK(len); |
1285 | } | |
1286 | default: | |
1287 | stat = USB_ST_STALLED; | |
3e326ece MK |
1288 | } |
1289 | break; | |
1290 | ||
1291 | case RH_GET_DESCRIPTOR | RH_CLASS: | |
1292 | { | |
6f5794a6 | 1293 | __u32 temp = roothub_a(&gohci); |
3e326ece | 1294 | |
f1273f11 TK |
1295 | databuf[0] = 9; /* min length; */ |
1296 | databuf[1] = 0x29; | |
1297 | databuf[2] = temp & RH_A_NDP; | |
3e326ece | 1298 | #ifdef CONFIG_AT91C_PQFP_UHPBUG |
f1273f11 | 1299 | databuf[2] = (databuf[2] == 2) ? 1 : 0; |
3e326ece | 1300 | #endif |
f1273f11 | 1301 | databuf[3] = 0; |
3e326ece | 1302 | if (temp & RH_A_PSM) /* per-port power switching? */ |
f1273f11 | 1303 | databuf[3] |= 0x1; |
3e326ece | 1304 | if (temp & RH_A_NOCP) /* no overcurrent reporting? */ |
f1273f11 | 1305 | databuf[3] |= 0x10; |
6f5794a6 | 1306 | else if (temp & RH_A_OCPM)/* per-port overcurrent reporting? */ |
f1273f11 | 1307 | databuf[3] |= 0x8; |
3e326ece | 1308 | |
f1273f11 TK |
1309 | databuf[4] = 0; |
1310 | databuf[5] = (temp & RH_A_POTPGT) >> 24; | |
1311 | databuf[6] = 0; | |
6f5794a6 | 1312 | temp = roothub_b(&gohci); |
f1273f11 TK |
1313 | databuf[7] = temp & RH_B_DR; |
1314 | if (databuf[2] < 7) { | |
1315 | databuf[8] = 0xff; | |
3e326ece | 1316 | } else { |
f1273f11 TK |
1317 | databuf[0] += 2; |
1318 | databuf[8] = (temp & RH_B_DR) >> 8; | |
1319 | databuf[10] = databuf[9] = 0xff; | |
3e326ece MK |
1320 | } |
1321 | ||
1322 | len = min_t(unsigned int, leni, | |
f1273f11 | 1323 | min_t(unsigned int, databuf[0], wLength)); |
6f5794a6 | 1324 | OK(len); |
3e326ece MK |
1325 | } |
1326 | ||
5f6aa03f | 1327 | case RH_GET_CONFIGURATION: |
f1273f11 | 1328 | databuf[0] = 0x01; |
5f6aa03f | 1329 | OK(1); |
3e326ece | 1330 | |
5f6aa03f MV |
1331 | case RH_SET_CONFIGURATION: |
1332 | WR_RH_STAT(0x10000); | |
1333 | OK(0); | |
3e326ece MK |
1334 | |
1335 | default: | |
6f5794a6 | 1336 | dbg("unsupported root hub command"); |
3e326ece MK |
1337 | stat = USB_ST_STALLED; |
1338 | } | |
1339 | ||
1340 | #ifdef DEBUG | |
6f5794a6 | 1341 | ohci_dump_roothub(&gohci, 1); |
3e326ece | 1342 | #else |
5b84dd67 | 1343 | mdelay(1); |
3e326ece MK |
1344 | #endif |
1345 | ||
1346 | len = min_t(int, len, leni); | |
f1273f11 TK |
1347 | if (data != databuf) |
1348 | memcpy(data, databuf, len); | |
3e326ece MK |
1349 | dev->act_len = len; |
1350 | dev->status = stat; | |
1351 | ||
1352 | #ifdef DEBUG | |
6f5794a6 RB |
1353 | pkt_print(NULL, dev, pipe, buffer, |
1354 | transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); | |
3e326ece | 1355 | #else |
5b84dd67 | 1356 | mdelay(1); |
3e326ece MK |
1357 | #endif |
1358 | ||
1359 | return stat; | |
1360 | } | |
1361 | ||
1362 | /*-------------------------------------------------------------------------*/ | |
1363 | ||
1364 | /* common code for handling submit messages - used for all but root hub */ | |
1365 | /* accesses. */ | |
1366 | int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, | |
1367 | int transfer_len, struct devrequest *setup, int interval) | |
1368 | { | |
1369 | int stat = 0; | |
1370 | int maxsize = usb_maxpacket(dev, pipe); | |
1371 | int timeout; | |
4dae14ce ZW |
1372 | urb_priv_t *urb; |
1373 | ||
1374 | urb = malloc(sizeof(urb_priv_t)); | |
1375 | memset(urb, 0, sizeof(urb_priv_t)); | |
1376 | ||
1377 | urb->dev = dev; | |
1378 | urb->pipe = pipe; | |
1379 | urb->transfer_buffer = buffer; | |
1380 | urb->transfer_buffer_length = transfer_len; | |
1381 | urb->interval = interval; | |
3e326ece MK |
1382 | |
1383 | /* device pulled? Shortcut the action. */ | |
1384 | if (devgone == dev) { | |
1385 | dev->status = USB_ST_CRC_ERR; | |
1386 | return 0; | |
1387 | } | |
1388 | ||
1389 | #ifdef DEBUG | |
4dae14ce | 1390 | urb->actual_length = 0; |
6f5794a6 RB |
1391 | pkt_print(urb, dev, pipe, buffer, transfer_len, |
1392 | setup, "SUB", usb_pipein(pipe)); | |
3e326ece | 1393 | #else |
5b84dd67 | 1394 | mdelay(1); |
3e326ece MK |
1395 | #endif |
1396 | if (!maxsize) { | |
1397 | err("submit_common_message: pipesize for pipe %lx is zero", | |
1398 | pipe); | |
1399 | return -1; | |
1400 | } | |
1401 | ||
4dae14ce | 1402 | if (sohci_submit_job(urb, setup) < 0) { |
3e326ece MK |
1403 | err("sohci_submit_job failed"); |
1404 | return -1; | |
1405 | } | |
1406 | ||
ae3b770e | 1407 | #if 0 |
5b84dd67 | 1408 | mdelay(10); |
3e326ece | 1409 | /* ohci_dump_status(&gohci); */ |
ae3b770e | 1410 | #endif |
3e326ece | 1411 | |
96820a35 | 1412 | timeout = USB_TIMEOUT_MS(pipe); |
3e326ece MK |
1413 | |
1414 | /* wait for it to complete */ | |
1415 | for (;;) { | |
1416 | /* check whether the controller is done */ | |
1417 | stat = hc_interrupt(); | |
1418 | if (stat < 0) { | |
1419 | stat = USB_ST_CRC_ERR; | |
1420 | break; | |
1421 | } | |
ddf83a2f | 1422 | |
ddf83a2f MK |
1423 | /* NOTE: since we are not interrupt driven in U-Boot and always |
1424 | * handle only one URB at a time, we cannot assume the | |
1425 | * transaction finished on the first successful return from | |
1426 | * hc_interrupt().. unless the flag for current URB is set, | |
1427 | * meaning that all TD's to/from device got actually | |
1428 | * transferred and processed. If the current URB is not | |
1429 | * finished we need to re-iterate this loop so as | |
1430 | * hc_interrupt() gets called again as there needs to be some | |
1431 | * more TD's to process still */ | |
4dae14ce | 1432 | if ((stat >= 0) && (stat != 0xff) && (urb->finished)) { |
3e326ece MK |
1433 | /* 0xff is returned for an SF-interrupt */ |
1434 | break; | |
1435 | } | |
ddf83a2f | 1436 | |
3e326ece | 1437 | if (--timeout) { |
5b84dd67 | 1438 | mdelay(1); |
4dae14ce | 1439 | if (!urb->finished) |
6f5794a6 | 1440 | dbg("*"); |
4dae14ce | 1441 | |
3e326ece MK |
1442 | } else { |
1443 | err("CTL:TIMEOUT "); | |
ddf83a2f | 1444 | dbg("submit_common_msg: TO status %x\n", stat); |
4dae14ce | 1445 | urb->finished = 1; |
3e326ece MK |
1446 | stat = USB_ST_CRC_ERR; |
1447 | break; | |
1448 | } | |
1449 | } | |
3e326ece MK |
1450 | |
1451 | dev->status = stat; | |
522c9564 | 1452 | dev->act_len = urb->actual_length; |
3e326ece MK |
1453 | |
1454 | #ifdef DEBUG | |
6f5794a6 RB |
1455 | pkt_print(urb, dev, pipe, buffer, transfer_len, |
1456 | setup, "RET(ctlr)", usb_pipein(pipe)); | |
3e326ece | 1457 | #else |
5b84dd67 | 1458 | mdelay(1); |
3e326ece MK |
1459 | #endif |
1460 | ||
1461 | /* free TDs in urb_priv */ | |
48867208 | 1462 | if (!usb_pipeint(pipe)) |
6f5794a6 | 1463 | urb_free_priv(urb); |
3e326ece MK |
1464 | return 0; |
1465 | } | |
1466 | ||
1467 | /* submit routines called from usb.c */ | |
1468 | int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, | |
1469 | int transfer_len) | |
1470 | { | |
1471 | info("submit_bulk_msg"); | |
1472 | return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0); | |
1473 | } | |
1474 | ||
1475 | int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, | |
1476 | int transfer_len, struct devrequest *setup) | |
1477 | { | |
1478 | int maxsize = usb_maxpacket(dev, pipe); | |
1479 | ||
1480 | info("submit_control_msg"); | |
1481 | #ifdef DEBUG | |
6f5794a6 RB |
1482 | pkt_print(NULL, dev, pipe, buffer, transfer_len, |
1483 | setup, "SUB", usb_pipein(pipe)); | |
3e326ece | 1484 | #else |
5b84dd67 | 1485 | mdelay(1); |
3e326ece MK |
1486 | #endif |
1487 | if (!maxsize) { | |
1488 | err("submit_control_message: pipesize for pipe %lx is zero", | |
1489 | pipe); | |
1490 | return -1; | |
1491 | } | |
1492 | if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) { | |
1493 | gohci.rh.dev = dev; | |
1494 | /* root hub - redirect */ | |
1495 | return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len, | |
1496 | setup); | |
1497 | } | |
1498 | ||
1499 | return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0); | |
1500 | } | |
1501 | ||
1502 | int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, | |
1503 | int transfer_len, int interval) | |
1504 | { | |
1505 | info("submit_int_msg"); | |
4dae14ce ZW |
1506 | return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, |
1507 | interval); | |
3e326ece MK |
1508 | } |
1509 | ||
1510 | /*-------------------------------------------------------------------------* | |
1511 | * HC functions | |
1512 | *-------------------------------------------------------------------------*/ | |
1513 | ||
1514 | /* reset the HC and BUS */ | |
1515 | ||
6f5794a6 | 1516 | static int hc_reset(ohci_t *ohci) |
3e326ece | 1517 | { |
e90fb6af YT |
1518 | #ifdef CONFIG_PCI_EHCI_DEVNO |
1519 | pci_dev_t pdev; | |
1520 | #endif | |
3e326ece MK |
1521 | int timeout = 30; |
1522 | int smm_timeout = 50; /* 0,5 sec */ | |
1523 | ||
1524 | dbg("%s\n", __FUNCTION__); | |
1525 | ||
e90fb6af YT |
1526 | #ifdef CONFIG_PCI_EHCI_DEVNO |
1527 | /* | |
1528 | * Some multi-function controllers (e.g. ISP1562) allow root hub | |
1529 | * resetting via EHCI registers only. | |
1530 | */ | |
1531 | pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVNO); | |
1532 | if (pdev != -1) { | |
1533 | u32 base; | |
1534 | int timeout = 1000; | |
1535 | ||
1536 | pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base); | |
a5496a18 BB |
1537 | base += EHCI_USBCMD_OFF; |
1538 | ohci_writel(ohci_readl(base) | EHCI_USBCMD_HCRESET, base); | |
e90fb6af | 1539 | |
a5496a18 | 1540 | while (ohci_readl(base) & EHCI_USBCMD_HCRESET) { |
e90fb6af YT |
1541 | if (timeout-- <= 0) { |
1542 | printf("USB RootHub reset timed out!"); | |
1543 | break; | |
1544 | } | |
1545 | udelay(1); | |
1546 | } | |
1547 | } else | |
1548 | printf("No EHCI func at %d index!\n", CONFIG_PCI_EHCI_DEVNO); | |
1549 | #endif | |
a5496a18 BB |
1550 | if (ohci_readl(&ohci->regs->control) & OHCI_CTRL_IR) { |
1551 | /* SMM owns the HC, request ownership */ | |
1552 | ohci_writel(OHCI_OCR, &ohci->regs->cmdstatus); | |
3e326ece | 1553 | info("USB HC TakeOver from SMM"); |
a5496a18 | 1554 | while (ohci_readl(&ohci->regs->control) & OHCI_CTRL_IR) { |
5b84dd67 | 1555 | mdelay(10); |
3e326ece MK |
1556 | if (--smm_timeout == 0) { |
1557 | err("USB HC TakeOver failed!"); | |
1558 | return -1; | |
1559 | } | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | /* Disable HC interrupts */ | |
a5496a18 | 1564 | ohci_writel(OHCI_INTR_MIE, &ohci->regs->intrdisable); |
3e326ece MK |
1565 | |
1566 | dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n", | |
1567 | ohci->slot_name, | |
a5496a18 | 1568 | ohci_readl(&ohci->regs->control)); |
3e326ece MK |
1569 | |
1570 | /* Reset USB (needed by some controllers) */ | |
53e336e9 | 1571 | ohci->hc_control = 0; |
a5496a18 | 1572 | ohci_writel(ohci->hc_control, &ohci->regs->control); |
3e326ece MK |
1573 | |
1574 | /* HC Reset requires max 10 us delay */ | |
a5496a18 BB |
1575 | ohci_writel(OHCI_HCR, &ohci->regs->cmdstatus); |
1576 | while ((ohci_readl(&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { | |
3e326ece MK |
1577 | if (--timeout == 0) { |
1578 | err("USB HC reset timed out!"); | |
1579 | return -1; | |
1580 | } | |
6f5794a6 | 1581 | udelay(1); |
3e326ece MK |
1582 | } |
1583 | return 0; | |
1584 | } | |
1585 | ||
1586 | /*-------------------------------------------------------------------------*/ | |
1587 | ||
1588 | /* Start an OHCI controller, set the BUS operational | |
1589 | * enable interrupts | |
1590 | * connect the virtual root hub */ | |
1591 | ||
6f5794a6 | 1592 | static int hc_start(ohci_t *ohci) |
3e326ece MK |
1593 | { |
1594 | __u32 mask; | |
1595 | unsigned int fminterval; | |
1596 | ||
1597 | ohci->disabled = 1; | |
1598 | ||
1599 | /* Tell the controller where the control and bulk lists are | |
1600 | * The lists are empty now. */ | |
1601 | ||
a5496a18 BB |
1602 | ohci_writel(0, &ohci->regs->ed_controlhead); |
1603 | ohci_writel(0, &ohci->regs->ed_bulkhead); | |
3e326ece | 1604 | |
a5496a18 BB |
1605 | ohci_writel((__u32)ohci->hcca, |
1606 | &ohci->regs->hcca); /* reset clears this */ | |
3e326ece MK |
1607 | |
1608 | fminterval = 0x2edf; | |
a5496a18 | 1609 | ohci_writel((fminterval * 9) / 10, &ohci->regs->periodicstart); |
3e326ece | 1610 | fminterval |= ((((fminterval - 210) * 6) / 7) << 16); |
a5496a18 BB |
1611 | ohci_writel(fminterval, &ohci->regs->fminterval); |
1612 | ohci_writel(0x628, &ohci->regs->lsthresh); | |
3e326ece MK |
1613 | |
1614 | /* start controller operations */ | |
1615 | ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; | |
1616 | ohci->disabled = 0; | |
a5496a18 | 1617 | ohci_writel(ohci->hc_control, &ohci->regs->control); |
3e326ece MK |
1618 | |
1619 | /* disable all interrupts */ | |
1620 | mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD | | |
1621 | OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC | | |
1622 | OHCI_INTR_OC | OHCI_INTR_MIE); | |
a5496a18 | 1623 | ohci_writel(mask, &ohci->regs->intrdisable); |
3e326ece MK |
1624 | /* clear all interrupts */ |
1625 | mask &= ~OHCI_INTR_MIE; | |
a5496a18 | 1626 | ohci_writel(mask, &ohci->regs->intrstatus); |
3e326ece MK |
1627 | /* Choose the interrupts we care about now - but w/o MIE */ |
1628 | mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; | |
a5496a18 | 1629 | ohci_writel(mask, &ohci->regs->intrenable); |
3e326ece MK |
1630 | |
1631 | #ifdef OHCI_USE_NPS | |
1632 | /* required for AMD-756 and some Mac platforms */ | |
a5496a18 | 1633 | ohci_writel((roothub_a(ohci) | RH_A_NPS) & ~RH_A_PSM, |
3e326ece | 1634 | &ohci->regs->roothub.a); |
a5496a18 | 1635 | ohci_writel(RH_HS_LPSC, &ohci->regs->roothub.status); |
3e326ece MK |
1636 | #endif /* OHCI_USE_NPS */ |
1637 | ||
3e326ece | 1638 | /* POTPGT delay is bits 24-31, in 2 ms units. */ |
6f5794a6 | 1639 | mdelay((roothub_a(ohci) >> 23) & 0x1fe); |
3e326ece MK |
1640 | |
1641 | /* connect the virtual root hub */ | |
1642 | ohci->rh.devnum = 0; | |
1643 | ||
1644 | return 0; | |
1645 | } | |
1646 | ||
1647 | /*-------------------------------------------------------------------------*/ | |
1648 | ||
1649 | /* an interrupt happens */ | |
1650 | ||
6f5794a6 | 1651 | static int hc_interrupt(void) |
3e326ece MK |
1652 | { |
1653 | ohci_t *ohci = &gohci; | |
1654 | struct ohci_regs *regs = ohci->regs; | |
1655 | int ints; | |
1656 | int stat = -1; | |
1657 | ||
ddf83a2f | 1658 | if ((ohci->hcca->done_head != 0) && |
6f5794a6 | 1659 | !(m32_swap(ohci->hcca->done_head) & 0x01)) { |
ddf83a2f | 1660 | ints = OHCI_INTR_WDH; |
6f5794a6 | 1661 | } else { |
a5496a18 | 1662 | ints = ohci_readl(®s->intrstatus); |
6f5794a6 RB |
1663 | if (ints == ~(u32)0) { |
1664 | ohci->disabled++; | |
1665 | err("%s device removed!", ohci->slot_name); | |
1666 | return -1; | |
1667 | } else { | |
a5496a18 | 1668 | ints &= ohci_readl(®s->intrenable); |
6f5794a6 RB |
1669 | if (ints == 0) { |
1670 | dbg("hc_interrupt: returning..\n"); | |
1671 | return 0xff; | |
1672 | } | |
1673 | } | |
ddf83a2f | 1674 | } |
ae79f606 | 1675 | |
6f5794a6 RB |
1676 | /* dbg("Interrupt: %x frame: %x", ints, |
1677 | le16_to_cpu(ohci->hcca->frame_no)); */ | |
3e326ece | 1678 | |
6f5794a6 | 1679 | if (ints & OHCI_INTR_RHSC) |
ddf83a2f | 1680 | stat = 0xff; |
3e326ece MK |
1681 | |
1682 | if (ints & OHCI_INTR_UE) { | |
1683 | ohci->disabled++; | |
6f5794a6 | 1684 | err("OHCI Unrecoverable Error, controller usb-%s disabled", |
3e326ece MK |
1685 | ohci->slot_name); |
1686 | /* e.g. due to PCI Master/Target Abort */ | |
1687 | ||
1688 | #ifdef DEBUG | |
6f5794a6 | 1689 | ohci_dump(ohci, 1); |
3e326ece | 1690 | #else |
5b84dd67 | 1691 | mdelay(1); |
3e326ece MK |
1692 | #endif |
1693 | /* FIXME: be optimistic, hope that bug won't repeat often. */ | |
1694 | /* Make some non-interrupt context restart the controller. */ | |
1695 | /* Count and limit the retries though; either hardware or */ | |
1696 | /* software errors can go forever... */ | |
6f5794a6 | 1697 | hc_reset(ohci); |
3e326ece MK |
1698 | return -1; |
1699 | } | |
1700 | ||
1701 | if (ints & OHCI_INTR_WDH) { | |
5b84dd67 | 1702 | mdelay(1); |
a5496a18 BB |
1703 | ohci_writel(OHCI_INTR_WDH, ®s->intrdisable); |
1704 | (void)ohci_readl(®s->intrdisable); /* flush */ | |
6f5794a6 | 1705 | stat = dl_done_list(&gohci); |
a5496a18 BB |
1706 | ohci_writel(OHCI_INTR_WDH, ®s->intrenable); |
1707 | (void)ohci_readl(®s->intrdisable); /* flush */ | |
3e326ece MK |
1708 | } |
1709 | ||
1710 | if (ints & OHCI_INTR_SO) { | |
1711 | dbg("USB Schedule overrun\n"); | |
a5496a18 | 1712 | ohci_writel(OHCI_INTR_SO, ®s->intrenable); |
3e326ece MK |
1713 | stat = -1; |
1714 | } | |
1715 | ||
1716 | /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */ | |
1717 | if (ints & OHCI_INTR_SF) { | |
6f5794a6 | 1718 | unsigned int frame = m16_swap(ohci->hcca->frame_no) & 1; |
5b84dd67 | 1719 | mdelay(1); |
a5496a18 | 1720 | ohci_writel(OHCI_INTR_SF, ®s->intrdisable); |
3e326ece | 1721 | if (ohci->ed_rm_list[frame] != NULL) |
a5496a18 | 1722 | ohci_writel(OHCI_INTR_SF, ®s->intrenable); |
3e326ece MK |
1723 | stat = 0xff; |
1724 | } | |
1725 | ||
a5496a18 | 1726 | ohci_writel(ints, ®s->intrstatus); |
3e326ece MK |
1727 | return stat; |
1728 | } | |
1729 | ||
1730 | /*-------------------------------------------------------------------------*/ | |
1731 | ||
1732 | /*-------------------------------------------------------------------------*/ | |
1733 | ||
1734 | /* De-allocate all resources.. */ | |
1735 | ||
6f5794a6 | 1736 | static void hc_release_ohci(ohci_t *ohci) |
3e326ece | 1737 | { |
6f5794a6 | 1738 | dbg("USB HC release ohci usb-%s", ohci->slot_name); |
3e326ece MK |
1739 | |
1740 | if (!ohci->disabled) | |
6f5794a6 | 1741 | hc_reset(ohci); |
3e326ece MK |
1742 | } |
1743 | ||
1744 | /*-------------------------------------------------------------------------*/ | |
1745 | ||
1746 | /* | |
1747 | * low level initalisation routine, called from usb.c | |
1748 | */ | |
1749 | static char ohci_inited = 0; | |
1750 | ||
06d513ec | 1751 | int usb_lowlevel_init(int index, enum usb_init_type init, void **controller) |
3e326ece | 1752 | { |
4dae14ce ZW |
1753 | #ifdef CONFIG_PCI_OHCI |
1754 | pci_dev_t pdev; | |
1755 | #endif | |
24e37645 | 1756 | |
6d0f6bcf | 1757 | #ifdef CONFIG_SYS_USB_OHCI_CPU_INIT |
24e37645 | 1758 | /* cpu dependant init */ |
6f5794a6 | 1759 | if (usb_cpu_init()) |
3e326ece | 1760 | return -1; |
24e37645 | 1761 | #endif |
3e326ece | 1762 | |
6d0f6bcf | 1763 | #ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT |
24e37645 | 1764 | /* board dependant init */ |
16297cfb | 1765 | if (board_usb_init(index, USB_INIT_HOST)) |
24e37645 MK |
1766 | return -1; |
1767 | #endif | |
6f5794a6 | 1768 | memset(&gohci, 0, sizeof(ohci_t)); |
3e326ece MK |
1769 | |
1770 | /* align the storage */ | |
1771 | if ((__u32)&ghcca[0] & 0xff) { | |
1772 | err("HCCA not aligned!!"); | |
1773 | return -1; | |
1774 | } | |
1775 | phcca = &ghcca[0]; | |
1776 | info("aligned ghcca %p", phcca); | |
1777 | memset(&ohci_dev, 0, sizeof(struct ohci_device)); | |
1778 | if ((__u32)&ohci_dev.ed[0] & 0x7) { | |
1779 | err("EDs not aligned!!"); | |
1780 | return -1; | |
1781 | } | |
1782 | memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1)); | |
1783 | if ((__u32)gtd & 0x7) { | |
1784 | err("TDs not aligned!!"); | |
1785 | return -1; | |
1786 | } | |
1787 | ptd = gtd; | |
1788 | gohci.hcca = phcca; | |
6f5794a6 | 1789 | memset(phcca, 0, sizeof(struct ohci_hcca)); |
3e326ece MK |
1790 | |
1791 | gohci.disabled = 1; | |
1792 | gohci.sleeping = 0; | |
1793 | gohci.irq = -1; | |
4dae14ce | 1794 | #ifdef CONFIG_PCI_OHCI |
477434c6 | 1795 | pdev = pci_find_devices(ohci_pci_ids, CONFIG_PCI_OHCI_DEVNO); |
4dae14ce ZW |
1796 | |
1797 | if (pdev != -1) { | |
1798 | u16 vid, did; | |
1799 | u32 base; | |
1800 | pci_read_config_word(pdev, PCI_VENDOR_ID, &vid); | |
1801 | pci_read_config_word(pdev, PCI_DEVICE_ID, &did); | |
1802 | printf("OHCI pci controller (%04x, %04x) found @(%d:%d:%d)\n", | |
1803 | vid, did, (pdev >> 16) & 0xff, | |
1804 | (pdev >> 11) & 0x1f, (pdev >> 8) & 0x7); | |
1805 | pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base); | |
1806 | printf("OHCI regs address 0x%08x\n", base); | |
1807 | gohci.regs = (struct ohci_regs *)base; | |
1808 | } else | |
1809 | return -1; | |
1810 | #else | |
6d0f6bcf | 1811 | gohci.regs = (struct ohci_regs *)CONFIG_SYS_USB_OHCI_REGS_BASE; |
4dae14ce | 1812 | #endif |
3e326ece MK |
1813 | |
1814 | gohci.flags = 0; | |
6d0f6bcf | 1815 | gohci.slot_name = CONFIG_SYS_USB_OHCI_SLOT_NAME; |
3e326ece MK |
1816 | |
1817 | if (hc_reset (&gohci) < 0) { | |
1818 | hc_release_ohci (&gohci); | |
1819 | err ("can't reset usb-%s", gohci.slot_name); | |
6d0f6bcf | 1820 | #ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT |
24e37645 | 1821 | /* board dependant cleanup */ |
16297cfb | 1822 | board_usb_cleanup(index, USB_INIT_HOST); |
24e37645 MK |
1823 | #endif |
1824 | ||
6d0f6bcf | 1825 | #ifdef CONFIG_SYS_USB_OHCI_CPU_INIT |
24e37645 | 1826 | /* cpu dependant cleanup */ |
ddf83a2f | 1827 | usb_cpu_init_fail(); |
24e37645 | 1828 | #endif |
3e326ece MK |
1829 | return -1; |
1830 | } | |
1831 | ||
6f5794a6 RB |
1832 | if (hc_start(&gohci) < 0) { |
1833 | err("can't start usb-%s", gohci.slot_name); | |
1834 | hc_release_ohci(&gohci); | |
3e326ece | 1835 | /* Initialization failed */ |
6d0f6bcf | 1836 | #ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT |
24e37645 MK |
1837 | /* board dependant cleanup */ |
1838 | usb_board_stop(); | |
1839 | #endif | |
1840 | ||
6d0f6bcf | 1841 | #ifdef CONFIG_SYS_USB_OHCI_CPU_INIT |
24e37645 MK |
1842 | /* cpu dependant cleanup */ |
1843 | usb_cpu_stop(); | |
1844 | #endif | |
3e326ece MK |
1845 | return -1; |
1846 | } | |
1847 | ||
1848 | #ifdef DEBUG | |
6f5794a6 | 1849 | ohci_dump(&gohci, 1); |
3e326ece | 1850 | #else |
5b84dd67 | 1851 | mdelay(1); |
3e326ece MK |
1852 | #endif |
1853 | ohci_inited = 1; | |
1854 | return 0; | |
1855 | } | |
1856 | ||
c7e3b2b5 | 1857 | int usb_lowlevel_stop(int index) |
3e326ece MK |
1858 | { |
1859 | /* this gets called really early - before the controller has */ | |
1860 | /* even been initialized! */ | |
1861 | if (!ohci_inited) | |
1862 | return 0; | |
1863 | /* TODO release any interrupts, etc. */ | |
1864 | /* call hc_release_ohci() here ? */ | |
6f5794a6 | 1865 | hc_reset(&gohci); |
3e326ece | 1866 | |
6d0f6bcf | 1867 | #ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT |
3e326ece | 1868 | /* board dependant cleanup */ |
6f5794a6 | 1869 | if (usb_board_stop()) |
3e326ece | 1870 | return -1; |
24e37645 MK |
1871 | #endif |
1872 | ||
6d0f6bcf | 1873 | #ifdef CONFIG_SYS_USB_OHCI_CPU_INIT |
24e37645 | 1874 | /* cpu dependant cleanup */ |
6f5794a6 | 1875 | if (usb_cpu_stop()) |
24e37645 MK |
1876 | return -1; |
1877 | #endif | |
eba1f2fc RB |
1878 | /* This driver is no longer initialised. It needs a new low-level |
1879 | * init (board/cpu) before it can be used again. */ | |
1880 | ohci_inited = 0; | |
3e326ece MK |
1881 | return 0; |
1882 | } |