3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * Including this file is mandatory for all USB related c-files in the
35 /* Default USB configuration */
37 #ifndef USB_USE_CONDVAR
38 #define USB_USE_CONDVAR 0
42 #define USB_HAVE_UGEN 1
45 #ifndef USB_TD_GET_PROC
46 #define USB_TD_GET_PROC(td) (td)->td_proc
49 #ifndef USB_PROC_GET_GID
50 #define USB_PROC_GET_GID(td) (td)->p_pgid
55 #include <sys/stdint.h>
56 #include <sys/stddef.h>
57 #include <sys/param.h>
58 #include <sys/queue.h>
59 #include <sys/types.h>
60 #include <sys/systm.h>
61 #include <sys/kernel.h>
63 #include <sys/linker_set.h>
64 #include <sys/module.h>
66 #include <sys/mutex.h>
67 #include <sys/condvar.h>
68 #include <sys/sysctl.h>
70 #include <sys/unistd.h>
71 #include <sys/callout.h>
72 #include <sys/malloc.h>
75 #include <dev/usb/usb_mfunc.h>
76 #include <dev/usb/usb_revision.h>
82 #define USB_STACK_VERSION 2000 /* 2.0 */
84 #define USB_HOST_ALIGN 8 /* bytes, must be power of two */
86 #define USB_ISOC_TIME_MAX 128 /* ms */
87 #define USB_FS_ISOC_UFRAME_MAX 4 /* exclusive unit */
89 #if (USB_FS_ISOC_UFRAME_MAX > 6)
90 #error "USB_FS_ISOC_UFRAME_MAX cannot be set higher than 6"
93 #define USB_MAX_FS_ISOC_FRAMES_PER_XFER (120) /* units */
94 #define USB_MAX_HS_ISOC_FRAMES_PER_XFER (8*120) /* units */
96 #define USB_MAX_IPACKET 8 /* maximum size of the initial USB
102 #define USB_HUB_MAX_DEPTH 5
104 /* USB transfer states */
106 #define USB_ST_SETUP 0
107 #define USB_ST_TRANSFERRED 1
108 #define USB_ST_ERROR 2
111 * The following macro will return the current state of an USB
112 * transfer like defined by the "USB_ST_XXX" enums.
114 #define USB_GET_STATE(xfer) ((xfer)->usb2_state)
117 * The following macro will tell if an USB transfer is currently
118 * receiving or transferring data.
120 #define USB_GET_DATA_ISREAD(xfer) (((xfer)->flags_int.usb2_mode == \
121 USB_MODE_DEVICE) ? ((xfer->endpoint & UE_DIR_IN) ? 0 : 1) : \
122 ((xfer->endpoint & UE_DIR_IN) ? 1 : 0))
125 * The following macros are used used to convert milliseconds into
126 * HZ. We use 1024 instead of 1000 milliseconds per second to save a
129 #define USB_MS_HZ 1024
131 #define USB_MS_TO_TICKS(ms) \
132 (((uint32_t)((((uint32_t)(ms)) * ((uint32_t)(hz))) + USB_MS_HZ - 1)) / USB_MS_HZ)
136 #define usb2_callout_init_mtx(c,m,f) callout_init_mtx(&(c)->co,m,f)
137 #define usb2_callout_reset(c,t,f,d) callout_reset(&(c)->co,t,f,d)
138 #define usb2_callout_stop(c) callout_stop(&(c)->co)
139 #define usb2_callout_drain(c) callout_drain(&(c)->co)
140 #define usb2_callout_pending(c) callout_pending(&(c)->co)
142 #define USB_BUS_LOCK(_b) mtx_lock(&(_b)->bus_mtx)
143 #define USB_BUS_UNLOCK(_b) mtx_unlock(&(_b)->bus_mtx)
144 #define USB_BUS_LOCK_ASSERT(_b, _t) mtx_assert(&(_b)->bus_mtx, _t)
145 #define USB_XFER_LOCK(_x) mtx_lock((_x)->xroot->xfer_mtx)
146 #define USB_XFER_UNLOCK(_x) mtx_unlock((_x)->xroot->xfer_mtx)
147 #define USB_XFER_LOCK_ASSERT(_x, _t) mtx_assert((_x)->xroot->xfer_mtx, _t)
148 /* structure prototypes */
154 struct usb2_page_cache;
156 struct usb2_xfer_root;
160 typedef uint8_t usb2_error_t;
162 typedef void (usb2_callback_t)(struct usb2_xfer *);
167 * Common queue structure for USB transfers.
169 struct usb2_xfer_queue {
170 TAILQ_HEAD(, usb2_xfer) head;
171 struct usb2_xfer *curr; /* current USB transfer processed */
172 void (*command) (struct usb2_xfer_queue *pq);
178 * The following is a wrapper for the callout structure to ease
179 * porting the code to other platforms.
181 struct usb2_callout {
186 * The following structure defines a set of USB transfer flags.
188 struct usb2_xfer_flags {
189 uint8_t force_short_xfer:1; /* force a short transmit transfer
191 uint8_t short_xfer_ok:1; /* allow short receive transfers */
192 uint8_t short_frames_ok:1; /* allow short frames */
193 uint8_t pipe_bof:1; /* block pipe on failure */
194 uint8_t proxy_buffer:1; /* makes buffer size a factor of
195 * "max_frame_size" */
196 uint8_t ext_buffer:1; /* uses external DMA buffer */
197 uint8_t manual_status:1; /* non automatic status stage on
198 * control transfers */
199 uint8_t no_pipe_ok:1; /* set if "USB_ERR_NO_PIPE" error can
201 uint8_t stall_pipe:1; /* set if the endpoint belonging to
202 * this USB transfer should be stalled
203 * before starting this transfer! */
207 * The following structure defines a set of internal USB transfer
210 struct usb2_xfer_flags_int {
211 uint16_t control_rem; /* remainder in bytes */
213 uint8_t open:1; /* set if USB pipe has been opened */
214 uint8_t transferring:1; /* set if an USB transfer is in
216 uint8_t did_dma_delay:1; /* set if we waited for HW DMA */
217 uint8_t did_close:1; /* set if we closed the USB transfer */
218 uint8_t draining:1; /* set if we are draining an USB
220 uint8_t started:1; /* keeps track of started or stopped */
221 uint8_t bandwidth_reclaimed:1;
222 uint8_t control_xfr:1; /* set if control transfer */
223 uint8_t control_hdr:1; /* set if control header should be
225 uint8_t control_act:1; /* set if control transfer is active */
227 uint8_t short_frames_ok:1; /* filtered version */
228 uint8_t short_xfer_ok:1; /* filtered version */
229 uint8_t bdma_enable:1; /* filtered version (only set if
230 * hardware supports DMA) */
231 uint8_t bdma_no_post_sync:1; /* set if the USB callback wrapper
232 * should not do the BUS-DMA post sync
234 uint8_t bdma_setup:1; /* set if BUS-DMA has been setup */
235 uint8_t isochronous_xfr:1; /* set if isochronous transfer */
236 uint8_t usb2_mode:1; /* shadow copy of "udev->usb2_mode" */
237 uint8_t curr_dma_set:1; /* used by USB HC/DC driver */
238 uint8_t can_cancel_immed:1; /* set if USB transfer can be
239 * cancelled immediately */
243 * The following structure defines the symmetric part of an USB config
246 struct usb2_config_sub {
247 usb2_callback_t *callback; /* USB transfer callback */
248 uint32_t bufsize; /* total pipe buffer size in bytes */
249 uint32_t frames; /* maximum number of USB frames */
250 uint16_t interval; /* interval in milliseconds */
251 #define USB_DEFAULT_INTERVAL 0
252 uint16_t timeout; /* transfer timeout in milliseconds */
253 struct usb2_xfer_flags flags; /* transfer flags */
257 * The following structure define an USB configuration, that basically
258 * is used when setting up an USB transfer.
261 struct usb2_config_sub mh; /* parameters for USB_MODE_HOST */
262 struct usb2_config_sub md; /* parameters for USB_MODE_DEVICE */
263 uint8_t type; /* pipe type */
264 uint8_t endpoint; /* pipe number */
265 uint8_t direction; /* pipe direction */
266 uint8_t ep_index; /* pipe index match to use */
267 uint8_t if_index; /* "ifaces" index to use */
271 * The following structure defines an USB transfer.
274 struct usb2_callout timeout_handle;
275 TAILQ_ENTRY(usb2_xfer) wait_entry; /* used at various places */
277 struct usb2_page_cache *buf_fixup; /* fixup buffer(s) */
278 struct usb2_xfer_queue *wait_queue; /* pointer to queue that we
280 struct usb2_page *dma_page_ptr;
281 struct usb2_pipe *pipe; /* our USB pipe */
282 struct usb2_xfer_root *xroot; /* used by HC driver */
283 void *qh_start[2]; /* used by HC driver */
284 void *td_start[2]; /* used by HC driver */
285 void *td_transfer_first; /* used by HC driver */
286 void *td_transfer_last; /* used by HC driver */
287 void *td_transfer_cache; /* used by HC driver */
288 void *priv_sc; /* device driver data pointer 1 */
289 void *priv_fifo; /* device driver data pointer 2 */
292 struct usb2_page_cache *frbuffers;
293 usb2_callback_t *callback;
295 uint32_t max_usb2_frame_size;
296 uint32_t max_data_length;
297 uint32_t sumlen; /* sum of all lengths in bytes */
298 uint32_t actlen; /* actual length in bytes */
299 uint32_t timeout; /* milliseconds */
300 #define USB_NO_TIMEOUT 0
301 #define USB_DEFAULT_TIMEOUT 5000 /* 5000 ms = 5 seconds */
303 uint32_t max_frame_count; /* initial value of "nframes" after
305 uint32_t nframes; /* number of USB frames to transfer */
306 uint32_t aframes; /* actual number of USB frames
309 uint16_t max_packet_size;
310 uint16_t max_frame_size;
312 uint16_t isoc_time_complete; /* in ms */
313 uint16_t interval; /* milliseconds */
315 uint8_t address; /* physical USB address */
316 uint8_t endpoint; /* physical USB endpoint */
317 uint8_t max_packet_count;
325 struct usb2_xfer_flags flags;
326 struct usb2_xfer_flags_int flags_int;
330 * The following structure keeps information that is used to match
331 * against an array of "usb2_device_id" elements.
333 struct usb2_lookup_info {
337 uint8_t bDeviceClass;
338 uint8_t bDeviceSubClass;
339 uint8_t bDeviceProtocol;
340 uint8_t bInterfaceClass;
341 uint8_t bInterfaceSubClass;
342 uint8_t bInterfaceProtocol;
345 uint8_t bConfigIndex;
349 /* Structure used by probe and attach */
351 struct usb2_attach_arg {
352 struct usb2_lookup_info info;
353 device_t temp_dev; /* for internal use */
354 const void *driver_info; /* for internal use */
355 struct usb2_device *device; /* current device */
356 struct usb2_interface *iface; /* current interface */
357 uint8_t usb2_mode; /* see USB_MODE_XXX */
359 uint8_t use_generic; /* hint for generic drivers */
362 /* external variables */
364 MALLOC_DECLARE(M_USB);
365 MALLOC_DECLARE(M_USBDEV);
366 MALLOC_DECLARE(M_USBHC);
368 extern struct mtx usb2_ref_lock;
372 typedef struct malloc_type *usb2_malloc_type;
376 const char *usb2_errstr(usb2_error_t error);
377 struct usb2_config_descriptor *usb2_get_config_descriptor(
378 struct usb2_device *udev);
379 struct usb2_device_descriptor *usb2_get_device_descriptor(
380 struct usb2_device *udev);
381 struct usb2_interface *usb2_get_iface(struct usb2_device *udev,
382 uint8_t iface_index);
383 struct usb2_interface_descriptor *usb2_get_interface_descriptor(
384 struct usb2_interface *iface);
385 uint8_t usb2_clear_stall_callback(struct usb2_xfer *xfer1,
386 struct usb2_xfer *xfer2);
387 uint8_t usb2_get_interface_altindex(struct usb2_interface *iface);
388 usb2_error_t usb2_set_alt_interface_index(struct usb2_device *udev,
389 uint8_t iface_index, uint8_t alt_index);
390 uint8_t usb2_get_mode(struct usb2_device *udev);
391 uint8_t usb2_get_speed(struct usb2_device *udev);
392 uint32_t usb2_get_isoc_fps(struct usb2_device *udev);
393 usb2_error_t usb2_transfer_setup(struct usb2_device *udev,
394 const uint8_t *ifaces, struct usb2_xfer **pxfer,
395 const struct usb2_config *setup_start, uint16_t n_setup,
396 void *priv_sc, struct mtx *priv_mtx);
397 void usb2_set_frame_data(struct usb2_xfer *xfer, void *ptr,
399 void usb2_set_frame_offset(struct usb2_xfer *xfer, uint32_t offset,
401 void usb2_start_hardware(struct usb2_xfer *xfer);
402 void usb2_transfer_clear_stall(struct usb2_xfer *xfer);
403 void usb2_transfer_drain(struct usb2_xfer *xfer);
404 void usb2_transfer_set_stall(struct usb2_xfer *xfer);
405 uint8_t usb2_transfer_pending(struct usb2_xfer *xfer);
406 void usb2_transfer_start(struct usb2_xfer *xfer);
407 void usb2_transfer_stop(struct usb2_xfer *xfer);
408 void usb2_transfer_unsetup(struct usb2_xfer **pxfer, uint16_t n_setup);
409 void usb2_set_parent_iface(struct usb2_device *udev, uint8_t iface_index,
410 uint8_t parent_index);
411 uint8_t usb2_get_bus_index(struct usb2_device *udev);
412 uint8_t usb2_get_device_index(struct usb2_device *udev);
413 void usb2_set_power_mode(struct usb2_device *udev, uint8_t power_mode);
415 #endif /* _USB2_CORE_H_ */