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usb_process.c (187994) usb_process.c (188411)
1/* $FreeBSD: head/sys/dev/usb2/core/usb2_process.c 187994 2009-02-02 00:49:39Z alfred $ */
1/* $FreeBSD: head/sys/dev/usb2/core/usb2_process.c 188411 2009-02-09 21:56:33Z thompsa $ */
2/*-
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.

--- 149 unchanged lines hidden (view full) ---

159 up->up_ptr = NULL;
160 usb2_cv_signal(&up->up_cv);
161 mtx_unlock(up->up_mtx);
162
163 USB_THREAD_EXIT(0);
164}
165
166/*------------------------------------------------------------------------*
2/*-
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.

--- 149 unchanged lines hidden (view full) ---

159 up->up_ptr = NULL;
160 usb2_cv_signal(&up->up_cv);
161 mtx_unlock(up->up_mtx);
162
163 USB_THREAD_EXIT(0);
164}
165
166/*------------------------------------------------------------------------*
167 * usb2_proc_setup
167 * usb2_proc_create
168 *
169 * This function will create a process using the given "prio" that can
170 * execute callbacks. The mutex pointed to by "p_mtx" will be applied
171 * before calling the callbacks and released after that the callback
172 * has returned. The structure pointed to by "up" is assumed to be
173 * zeroed before this function is called.
174 *
175 * Return values:
176 * 0: success
177 * Else: failure
178 *------------------------------------------------------------------------*/
168 *
169 * This function will create a process using the given "prio" that can
170 * execute callbacks. The mutex pointed to by "p_mtx" will be applied
171 * before calling the callbacks and released after that the callback
172 * has returned. The structure pointed to by "up" is assumed to be
173 * zeroed before this function is called.
174 *
175 * Return values:
176 * 0: success
177 * Else: failure
178 *------------------------------------------------------------------------*/
179uint8_t
180usb2_proc_setup(struct usb2_process *up, struct mtx *p_mtx, uint8_t prio)
179int
180usb2_proc_create(struct usb2_process *up, struct mtx *p_mtx,
181 const char *pmesg, uint8_t prio)
181{
182 up->up_mtx = p_mtx;
183 up->up_prio = prio;
184
185 TAILQ_INIT(&up->up_qhead);
186
187 usb2_cv_init(&up->up_cv, "wmsg");
188 usb2_cv_init(&up->up_drain, "dmsg");
189
190 if (USB_THREAD_CREATE(&usb2_process, up,
182{
183 up->up_mtx = p_mtx;
184 up->up_prio = prio;
185
186 TAILQ_INIT(&up->up_qhead);
187
188 usb2_cv_init(&up->up_cv, "wmsg");
189 usb2_cv_init(&up->up_drain, "dmsg");
190
191 if (USB_THREAD_CREATE(&usb2_process, up,
191 &up->up_ptr, "usbproc")) {
192 &up->up_ptr, pmesg)) {
192 DPRINTFN(0, "Unable to create USB process.");
193 up->up_ptr = NULL;
194 goto error;
195 }
196 return (0);
197
198error:
193 DPRINTFN(0, "Unable to create USB process.");
194 up->up_ptr = NULL;
195 goto error;
196 }
197 return (0);
198
199error:
199 usb2_proc_unsetup(up);
200 return (1);
200 usb2_proc_free(up);
201 return (ENOMEM);
201}
202
203/*------------------------------------------------------------------------*
202}
203
204/*------------------------------------------------------------------------*
204 * usb2_proc_unsetup
205 * usb2_proc_free
205 *
206 * NOTE: If the structure pointed to by "up" is all zero, this
207 * function does nothing.
208 *
209 * NOTE: Messages that are pending on the process queue will not be
210 * removed nor called.
211 *------------------------------------------------------------------------*/
212void
206 *
207 * NOTE: If the structure pointed to by "up" is all zero, this
208 * function does nothing.
209 *
210 * NOTE: Messages that are pending on the process queue will not be
211 * removed nor called.
212 *------------------------------------------------------------------------*/
213void
213usb2_proc_unsetup(struct usb2_process *up)
214usb2_proc_free(struct usb2_process *up)
214{
215 if (!(up->up_mtx)) {
216 /* not initialised */
217 return;
218 }
219 usb2_proc_drain(up);
220
221 usb2_cv_destroy(&up->up_cv);

--- 254 unchanged lines hidden --- 		215{
216 if (!(up->up_mtx)) {
217 /* not initialised */
218 return;
219 }
220 usb2_proc_drain(up);
221
222 usb2_cv_destroy(&up->up_cv);

--- 254 unchanged lines hidden ---