Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Renesas USB driver |
| 3 | * |
| 4 | * Copyright (C) 2011 Renesas Solutions Corp. |
| 5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | * You should have received a copy of the GNU General Public License |
| 13 | * along with this program; if not, write to the Free Software |
| 14 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 15 | * |
| 16 | */ |
| 17 | #include <linux/io.h> |
| 18 | #include <linux/list.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/slab.h> |
| 22 | #include <linux/usb.h> |
| 23 | #include <linux/usb/hcd.h> |
| 24 | #include "common.h" |
| 25 | |
| 26 | /* |
| 27 | *** HARDWARE LIMITATION *** |
| 28 | * |
| 29 | * 1) renesas_usbhs has a limited number of controllable devices. |
| 30 | * it can control only 9 devices in generally. |
| 31 | * see DEVADDn / DCPMAXP / PIPEMAXP. |
| 32 | * |
| 33 | * 2) renesas_usbhs pipe number is limited. |
| 34 | * the pipe will be re-used for each devices. |
| 35 | * so, software should control DATA0/1 sequence of each devices. |
| 36 | */ |
| 37 | |
| 38 | |
| 39 | /* |
| 40 | * image of mod_host |
| 41 | * |
| 42 | * +--------+ |
| 43 | * | udev 0 | --> it is used when set address |
| 44 | * +--------+ |
| 45 | * |
| 46 | * +--------+ pipes are reused for each uep. |
| 47 | * | udev 1 |-+- [uep 0 (dcp) ] --+ pipe will be switched when |
| 48 | * +--------+ | | target device was changed |
| 49 | * +- [uep 1 (bulk)] --|---+ +--------------+ |
| 50 | * | +--------------> | pipe0 (dcp) | |
| 51 | * +- [uep 2 (bulk)] --|---|---+ +--------------+ |
| 52 | * | | | | pipe1 (isoc) | |
| 53 | * +--------+ | | | +--------------+ |
| 54 | * | udev 2 |-+- [uep 0 (dcp) ] --+ +-- |------> | pipe2 (bulk) | |
| 55 | * +--------+ | | | | +--------------+ |
| 56 | * +- [uep 1 (int) ] --|-+ | +------> | pipe3 (bulk) | |
| 57 | * | | | | +--------------+ |
| 58 | * +--------+ | +-|---|------> | pipe4 (int) | |
| 59 | * | udev 3 |-+- [uep 0 (dcp) ] --+ | | +--------------+ |
| 60 | * +--------+ | | | | .... | |
| 61 | * +- [uep 1 (bulk)] ------+ | | .... | |
| 62 | * | | |
| 63 | * +- [uep 2 (bulk)]-----------+ |
| 64 | */ |
| 65 | |
| 66 | |
| 67 | /* |
| 68 | * struct |
| 69 | */ |
| 70 | struct usbhsh_pipe_info { |
| 71 | unsigned int usr_cnt; /* see usbhsh_endpoint_alloc() */ |
| 72 | }; |
| 73 | |
| 74 | struct usbhsh_request { |
| 75 | struct urb *urb; |
| 76 | struct usbhs_pkt pkt; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 77 | }; |
| 78 | |
| 79 | struct usbhsh_device { |
| 80 | struct usb_device *usbv; |
| 81 | struct list_head ep_list_head; /* list of usbhsh_ep */ |
| 82 | }; |
| 83 | |
| 84 | struct usbhsh_ep { |
| 85 | struct usbhs_pipe *pipe; |
| 86 | struct usbhsh_device *udev; /* attached udev */ |
| 87 | struct list_head ep_list; /* list to usbhsh_device */ |
| 88 | |
| 89 | int maxp; |
| 90 | }; |
| 91 | |
| 92 | #define USBHSH_DEVICE_MAX 10 /* see DEVADDn / DCPMAXP / PIPEMAXP */ |
| 93 | #define USBHSH_PORT_MAX 7 /* see DEVADDn :: HUBPORT */ |
| 94 | struct usbhsh_hpriv { |
| 95 | struct usbhs_mod mod; |
| 96 | struct usbhs_pipe *dcp; |
| 97 | |
| 98 | struct usbhsh_device udev[USBHSH_DEVICE_MAX]; |
| 99 | |
| 100 | struct usbhsh_pipe_info *pipe_info; |
| 101 | int pipe_size; |
| 102 | |
| 103 | u32 port_stat; /* USB_PORT_STAT_xxx */ |
| 104 | |
Kuninori Morimoto | 7fccd48 | 2011-10-23 22:55:54 -0700 | [diff] [blame] | 105 | struct completion setup_ack_done; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 106 | }; |
| 107 | |
| 108 | |
| 109 | static const char usbhsh_hcd_name[] = "renesas_usbhs host"; |
| 110 | |
| 111 | /* |
| 112 | * macro |
| 113 | */ |
| 114 | #define usbhsh_priv_to_hpriv(priv) \ |
| 115 | container_of(usbhs_mod_get(priv, USBHS_HOST), struct usbhsh_hpriv, mod) |
| 116 | |
| 117 | #define __usbhsh_for_each_hpipe(start, pos, h, i) \ |
| 118 | for (i = start, pos = (h)->hpipe + i; \ |
| 119 | i < (h)->hpipe_size; \ |
| 120 | i++, pos = (h)->hpipe + i) |
| 121 | |
| 122 | #define usbhsh_for_each_hpipe(pos, hpriv, i) \ |
| 123 | __usbhsh_for_each_hpipe(1, pos, hpriv, i) |
| 124 | |
| 125 | #define usbhsh_for_each_hpipe_with_dcp(pos, hpriv, i) \ |
| 126 | __usbhsh_for_each_hpipe(0, pos, hpriv, i) |
| 127 | |
| 128 | #define __usbhsh_for_each_udev(start, pos, h, i) \ |
| 129 | for (i = start, pos = (h)->udev + i; \ |
| 130 | i < USBHSH_DEVICE_MAX; \ |
| 131 | i++, pos = (h)->udev + i) |
| 132 | |
| 133 | #define usbhsh_for_each_udev(pos, hpriv, i) \ |
| 134 | __usbhsh_for_each_udev(1, pos, hpriv, i) |
| 135 | |
| 136 | #define usbhsh_for_each_udev_with_dev0(pos, hpriv, i) \ |
| 137 | __usbhsh_for_each_udev(0, pos, hpriv, i) |
| 138 | |
| 139 | #define usbhsh_hcd_to_hpriv(h) (struct usbhsh_hpriv *)((h)->hcd_priv) |
| 140 | #define usbhsh_hcd_to_dev(h) ((h)->self.controller) |
| 141 | |
| 142 | #define usbhsh_hpriv_to_priv(h) ((h)->mod.priv) |
| 143 | #define usbhsh_hpriv_to_dcp(h) ((h)->dcp) |
| 144 | #define usbhsh_hpriv_to_hcd(h) \ |
| 145 | container_of((void *)h, struct usb_hcd, hcd_priv) |
| 146 | |
| 147 | #define usbhsh_ep_to_uep(u) ((u)->hcpriv) |
| 148 | #define usbhsh_uep_to_pipe(u) ((u)->pipe) |
| 149 | #define usbhsh_uep_to_udev(u) ((u)->udev) |
| 150 | #define usbhsh_urb_to_ureq(u) ((u)->hcpriv) |
| 151 | #define usbhsh_urb_to_usbv(u) ((u)->dev) |
| 152 | |
| 153 | #define usbhsh_usbv_to_udev(d) dev_get_drvdata(&(d)->dev) |
| 154 | |
| 155 | #define usbhsh_udev_to_usbv(h) ((h)->usbv) |
Kuninori Morimoto | ab14230 | 2011-10-31 00:48:00 -0700 | [diff] [blame] | 156 | #define usbhsh_udev_is_used(h) usbhsh_udev_to_usbv(h) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 157 | |
| 158 | #define usbhsh_pipe_info(p) ((p)->mod_private) |
| 159 | |
Kuninori Morimoto | 9c67365 | 2011-10-31 00:47:34 -0700 | [diff] [blame] | 160 | #define usbhsh_device_parent(d) (usbhsh_usbv_to_udev((d)->usbv->parent)) |
| 161 | #define usbhsh_device_hubport(d) ((d)->usbv->portnum) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 162 | #define usbhsh_device_number(h, d) ((int)((d) - (h)->udev)) |
| 163 | #define usbhsh_device_nth(h, d) ((h)->udev + d) |
| 164 | #define usbhsh_device0(h) usbhsh_device_nth(h, 0) |
| 165 | |
| 166 | #define usbhsh_port_stat_init(h) ((h)->port_stat = 0) |
| 167 | #define usbhsh_port_stat_set(h, s) ((h)->port_stat |= (s)) |
| 168 | #define usbhsh_port_stat_clear(h, s) ((h)->port_stat &= ~(s)) |
| 169 | #define usbhsh_port_stat_get(h) ((h)->port_stat) |
| 170 | |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 171 | #define usbhsh_pkt_to_ureq(p) \ |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 172 | container_of((void *)p, struct usbhsh_request, pkt) |
| 173 | |
| 174 | /* |
| 175 | * req alloc/free |
| 176 | */ |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 177 | static struct usbhsh_request *usbhsh_ureq_alloc(struct usbhsh_hpriv *hpriv, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 178 | struct urb *urb, |
| 179 | gfp_t mem_flags) |
| 180 | { |
| 181 | struct usbhsh_request *ureq; |
| 182 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 183 | struct device *dev = usbhs_priv_to_dev(priv); |
| 184 | |
Kuninori Morimoto | c5b963f | 2011-10-31 00:47:44 -0700 | [diff] [blame] | 185 | ureq = kzalloc(sizeof(struct usbhsh_request), mem_flags); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 186 | if (!ureq) { |
| 187 | dev_err(dev, "ureq alloc fail\n"); |
| 188 | return NULL; |
| 189 | } |
| 190 | |
| 191 | usbhs_pkt_init(&ureq->pkt); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 192 | ureq->urb = urb; |
Kuninori Morimoto | fc9d5c7 | 2011-10-31 00:47:01 -0700 | [diff] [blame] | 193 | usbhsh_urb_to_ureq(urb) = ureq; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 194 | |
| 195 | return ureq; |
| 196 | } |
| 197 | |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 198 | static void usbhsh_ureq_free(struct usbhsh_hpriv *hpriv, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 199 | struct usbhsh_request *ureq) |
| 200 | { |
Kuninori Morimoto | fc9d5c7 | 2011-10-31 00:47:01 -0700 | [diff] [blame] | 201 | usbhsh_urb_to_ureq(ureq->urb) = NULL; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 202 | ureq->urb = NULL; |
Kuninori Morimoto | c5b963f | 2011-10-31 00:47:44 -0700 | [diff] [blame] | 203 | |
| 204 | kfree(ureq); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | /* |
| 208 | * device control |
| 209 | */ |
Kuninori Morimoto | 9c67365 | 2011-10-31 00:47:34 -0700 | [diff] [blame] | 210 | static int usbhsh_connected_to_rhdev(struct usb_hcd *hcd, |
| 211 | struct usbhsh_device *udev) |
| 212 | { |
| 213 | struct usb_device *usbv = usbhsh_udev_to_usbv(udev); |
| 214 | |
| 215 | return hcd->self.root_hub == usbv->parent; |
| 216 | } |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 217 | |
| 218 | static int usbhsh_device_has_endpoint(struct usbhsh_device *udev) |
| 219 | { |
| 220 | return !list_empty(&udev->ep_list_head); |
| 221 | } |
| 222 | |
Kuninori Morimoto | 7aac8d1 | 2011-10-31 00:49:09 -0700 | [diff] [blame] | 223 | static struct usbhsh_device *usbhsh_device_attach(struct usbhsh_hpriv *hpriv, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 224 | struct urb *urb) |
| 225 | { |
| 226 | struct usbhsh_device *udev = NULL; |
| 227 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
| 228 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
| 229 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); |
| 230 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 231 | unsigned long flags; |
Kuninori Morimoto | 9c67365 | 2011-10-31 00:47:34 -0700 | [diff] [blame] | 232 | u16 upphub, hubport; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 233 | int i; |
| 234 | |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 235 | /******************** spin lock ********************/ |
| 236 | usbhs_lock(priv, flags); |
| 237 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 238 | /* |
Kuninori Morimoto | ab14230 | 2011-10-31 00:48:00 -0700 | [diff] [blame] | 239 | * find device |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 240 | */ |
| 241 | if (0 == usb_pipedevice(urb->pipe)) { |
Kuninori Morimoto | ab14230 | 2011-10-31 00:48:00 -0700 | [diff] [blame] | 242 | /* |
| 243 | * device0 is special case |
| 244 | */ |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 245 | udev = usbhsh_device0(hpriv); |
Kuninori Morimoto | ab14230 | 2011-10-31 00:48:00 -0700 | [diff] [blame] | 246 | if (usbhsh_udev_is_used(udev)) |
| 247 | udev = NULL; |
| 248 | } else { |
| 249 | struct usbhsh_device *pos; |
| 250 | |
| 251 | /* |
| 252 | * find unused device |
| 253 | */ |
| 254 | usbhsh_for_each_udev(pos, hpriv, i) { |
| 255 | if (usbhsh_udev_is_used(pos)) |
| 256 | continue; |
| 257 | udev = pos; |
| 258 | break; |
| 259 | } |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 260 | } |
| 261 | |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 262 | if (udev) { |
| 263 | /* |
| 264 | * usbhsh_usbv_to_udev() |
| 265 | * usbhsh_udev_to_usbv() |
| 266 | * will be enable |
| 267 | */ |
| 268 | dev_set_drvdata(&usbv->dev, udev); |
| 269 | udev->usbv = usbv; |
| 270 | } |
| 271 | |
| 272 | usbhs_unlock(priv, flags); |
| 273 | /******************** spin unlock ******************/ |
| 274 | |
Kuninori Morimoto | ab14230 | 2011-10-31 00:48:00 -0700 | [diff] [blame] | 275 | if (!udev) { |
| 276 | dev_err(dev, "no free usbhsh_device\n"); |
| 277 | return NULL; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 278 | } |
| 279 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 280 | if (usbhsh_device_has_endpoint(udev)) |
| 281 | dev_warn(dev, "udev have old endpoint\n"); |
| 282 | |
| 283 | /* uep will be attached */ |
| 284 | INIT_LIST_HEAD(&udev->ep_list_head); |
| 285 | |
Kuninori Morimoto | 9c67365 | 2011-10-31 00:47:34 -0700 | [diff] [blame] | 286 | upphub = 0; |
| 287 | hubport = 0; |
| 288 | if (!usbhsh_connected_to_rhdev(hcd, udev)) { |
| 289 | /* if udev is not connected to rhdev, it means parent is Hub */ |
| 290 | struct usbhsh_device *parent = usbhsh_device_parent(udev); |
| 291 | |
| 292 | upphub = usbhsh_device_number(hpriv, parent); |
| 293 | hubport = usbhsh_device_hubport(udev); |
| 294 | |
| 295 | dev_dbg(dev, "%s connecte to Hub [%d:%d](%p)\n", __func__, |
| 296 | upphub, hubport, parent); |
| 297 | } |
| 298 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 299 | /* set device config */ |
Kuninori Morimoto | 3dd4926 | 2011-10-31 00:47:13 -0700 | [diff] [blame] | 300 | usbhs_set_device_config(priv, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 301 | usbhsh_device_number(hpriv, udev), |
Kuninori Morimoto | 9c67365 | 2011-10-31 00:47:34 -0700 | [diff] [blame] | 302 | upphub, hubport, usbv->speed); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 303 | |
| 304 | dev_dbg(dev, "%s [%d](%p)\n", __func__, |
| 305 | usbhsh_device_number(hpriv, udev), udev); |
| 306 | |
| 307 | return udev; |
| 308 | } |
| 309 | |
Kuninori Morimoto | 7aac8d1 | 2011-10-31 00:49:09 -0700 | [diff] [blame] | 310 | static void usbhsh_device_detach(struct usbhsh_hpriv *hpriv, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 311 | struct usbhsh_device *udev) |
| 312 | { |
| 313 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 314 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 315 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
| 316 | struct usb_device *usbv = usbhsh_udev_to_usbv(udev); |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 317 | unsigned long flags; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 318 | |
| 319 | dev_dbg(dev, "%s [%d](%p)\n", __func__, |
| 320 | usbhsh_device_number(hpriv, udev), udev); |
| 321 | |
| 322 | if (usbhsh_device_has_endpoint(udev)) |
| 323 | dev_warn(dev, "udev still have endpoint\n"); |
| 324 | |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 325 | /******************** spin lock ********************/ |
| 326 | usbhs_lock(priv, flags); |
| 327 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 328 | /* |
| 329 | * usbhsh_usbv_to_udev() |
| 330 | * usbhsh_udev_to_usbv() |
| 331 | * will be disable |
| 332 | */ |
| 333 | dev_set_drvdata(&usbv->dev, NULL); |
| 334 | udev->usbv = NULL; |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 335 | |
| 336 | usbhs_unlock(priv, flags); |
| 337 | /******************** spin unlock ******************/ |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 338 | } |
| 339 | |
| 340 | /* |
| 341 | * end-point control |
| 342 | */ |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 343 | static int usbhsh_endpoint_attach(struct usbhsh_hpriv *hpriv, |
| 344 | struct urb *urb, |
| 345 | gfp_t mem_flags) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 346 | { |
| 347 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 348 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); |
| 349 | struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv); |
| 350 | struct usb_host_endpoint *ep = urb->ep; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 351 | struct usbhsh_ep *uep; |
| 352 | struct usbhsh_pipe_info *info; |
Kuninori Morimoto | f352741 | 2011-10-31 00:48:22 -0700 | [diff] [blame] | 353 | struct usbhs_pipe *best_pipe = NULL; |
| 354 | struct device *dev = usbhs_priv_to_dev(priv); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 355 | struct usb_endpoint_descriptor *desc = &ep->desc; |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 356 | unsigned long flags; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 357 | |
| 358 | uep = kzalloc(sizeof(struct usbhsh_ep), mem_flags); |
| 359 | if (!uep) { |
| 360 | dev_err(dev, "usbhsh_ep alloc fail\n"); |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 361 | return -ENOMEM; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 362 | } |
Kuninori Morimoto | 73ef635 | 2011-10-24 02:24:49 -0700 | [diff] [blame] | 363 | |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 364 | /******************** spin lock ********************/ |
| 365 | usbhs_lock(priv, flags); |
| 366 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 367 | /* |
| 368 | * find best pipe for endpoint |
| 369 | * see |
| 370 | * HARDWARE LIMITATION |
| 371 | */ |
Kuninori Morimoto | f352741 | 2011-10-31 00:48:22 -0700 | [diff] [blame] | 372 | if (usb_endpoint_xfer_control(desc)) { |
| 373 | /* best pipe is DCP */ |
| 374 | best_pipe = usbhsh_hpriv_to_dcp(hpriv); |
| 375 | } else { |
| 376 | struct usbhs_pipe *pipe; |
| 377 | unsigned int min_usr = ~0; |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 378 | int dir_in_req = !!usb_pipein(urb->pipe); |
Kuninori Morimoto | f352741 | 2011-10-31 00:48:22 -0700 | [diff] [blame] | 379 | int i, dir_in; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 380 | |
Kuninori Morimoto | f352741 | 2011-10-31 00:48:22 -0700 | [diff] [blame] | 381 | usbhs_for_each_pipe(pipe, priv, i) { |
| 382 | if (!usbhs_pipe_type_is(pipe, usb_endpoint_type(desc))) |
| 383 | continue; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 384 | |
Kuninori Morimoto | f352741 | 2011-10-31 00:48:22 -0700 | [diff] [blame] | 385 | dir_in = !!usbhs_pipe_is_dir_in(pipe); |
| 386 | if (0 != (dir_in - dir_in_req)) |
| 387 | continue; |
| 388 | |
| 389 | info = usbhsh_pipe_info(pipe); |
| 390 | if (min_usr > info->usr_cnt) { |
| 391 | min_usr = info->usr_cnt; |
| 392 | best_pipe = pipe; |
| 393 | } |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 394 | } |
| 395 | } |
| 396 | |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 397 | if (best_pipe) { |
| 398 | /* update pipe user count */ |
| 399 | info = usbhsh_pipe_info(best_pipe); |
| 400 | info->usr_cnt++; |
| 401 | |
| 402 | /* init this endpoint, and attach it to udev */ |
| 403 | INIT_LIST_HEAD(&uep->ep_list); |
| 404 | list_add_tail(&uep->ep_list, &udev->ep_list_head); |
| 405 | } |
| 406 | |
| 407 | usbhs_unlock(priv, flags); |
| 408 | /******************** spin unlock ******************/ |
| 409 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 410 | if (unlikely(!best_pipe)) { |
| 411 | dev_err(dev, "couldn't find best pipe\n"); |
| 412 | kfree(uep); |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 413 | return -EIO; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 414 | } |
Kuninori Morimoto | f352741 | 2011-10-31 00:48:22 -0700 | [diff] [blame] | 415 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 416 | /* |
| 417 | * init uep |
| 418 | */ |
| 419 | uep->pipe = best_pipe; |
| 420 | uep->maxp = usb_endpoint_maxp(desc); |
| 421 | usbhsh_uep_to_udev(uep) = udev; |
| 422 | usbhsh_ep_to_uep(ep) = uep; |
| 423 | |
| 424 | /* |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 425 | * usbhs_pipe_config_update() should be called after |
Kuninori Morimoto | 3dd4926 | 2011-10-31 00:47:13 -0700 | [diff] [blame] | 426 | * usbhs_set_device_config() |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 427 | * see |
| 428 | * DCPMAXP/PIPEMAXP |
| 429 | */ |
Kuninori Morimoto | d7a00ec | 2011-10-24 02:25:28 -0700 | [diff] [blame] | 430 | usbhs_pipe_sequence_data0(uep->pipe); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 431 | usbhs_pipe_config_update(uep->pipe, |
| 432 | usbhsh_device_number(hpriv, udev), |
| 433 | usb_endpoint_num(desc), |
| 434 | uep->maxp); |
| 435 | |
| 436 | dev_dbg(dev, "%s [%d-%s](%p)\n", __func__, |
| 437 | usbhsh_device_number(hpriv, udev), |
Kuninori Morimoto | 73ef635 | 2011-10-24 02:24:49 -0700 | [diff] [blame] | 438 | usbhs_pipe_name(uep->pipe), uep); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 439 | |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 440 | return 0; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 441 | } |
| 442 | |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 443 | static void usbhsh_endpoint_detach(struct usbhsh_hpriv *hpriv, |
| 444 | struct usb_host_endpoint *ep) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 445 | { |
| 446 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 447 | struct device *dev = usbhs_priv_to_dev(priv); |
| 448 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 449 | struct usbhsh_pipe_info *info; |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 450 | unsigned long flags; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 451 | |
| 452 | if (!uep) |
| 453 | return; |
| 454 | |
| 455 | dev_dbg(dev, "%s [%d-%s](%p)\n", __func__, |
Kuninori Morimoto | 55b5a62 | 2011-10-17 18:04:37 -0700 | [diff] [blame] | 456 | usbhsh_device_number(hpriv, usbhsh_uep_to_udev(uep)), |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 457 | usbhs_pipe_name(uep->pipe), uep); |
| 458 | |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 459 | /******************** spin lock ********************/ |
| 460 | usbhs_lock(priv, flags); |
| 461 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 462 | info = usbhsh_pipe_info(uep->pipe); |
| 463 | info->usr_cnt--; |
| 464 | |
| 465 | /* remove this endpoint from udev */ |
| 466 | list_del_init(&uep->ep_list); |
| 467 | |
| 468 | usbhsh_uep_to_udev(uep) = NULL; |
| 469 | usbhsh_ep_to_uep(ep) = NULL; |
| 470 | |
Kuninori Morimoto | d399f90 | 2011-10-31 00:48:35 -0700 | [diff] [blame] | 471 | usbhs_unlock(priv, flags); |
| 472 | /******************** spin unlock ******************/ |
| 473 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 474 | kfree(uep); |
| 475 | } |
| 476 | |
| 477 | /* |
| 478 | * queue push/pop |
| 479 | */ |
| 480 | static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) |
| 481 | { |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 482 | struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 483 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 484 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
| 485 | struct urb *urb = ureq->urb; |
| 486 | struct device *dev = usbhs_priv_to_dev(priv); |
| 487 | |
| 488 | dev_dbg(dev, "%s\n", __func__); |
| 489 | |
| 490 | if (!urb) { |
| 491 | dev_warn(dev, "pkt doesn't have urb\n"); |
| 492 | return; |
| 493 | } |
| 494 | |
| 495 | urb->actual_length = pkt->actual; |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 496 | usbhsh_ureq_free(hpriv, ureq); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 497 | |
| 498 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
| 499 | usb_hcd_giveback_urb(hcd, urb, 0); |
| 500 | } |
| 501 | |
| 502 | static int usbhsh_queue_push(struct usb_hcd *hcd, |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 503 | struct urb *urb, |
| 504 | gfp_t mem_flags) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 505 | { |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 506 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
Kuninori Morimoto | 3eddc9e | 2011-10-31 00:48:46 -0700 | [diff] [blame] | 507 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); |
| 508 | struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 509 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 510 | struct usbhsh_request *ureq; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 511 | void *buf; |
| 512 | int len; |
| 513 | |
| 514 | if (usb_pipeisoc(urb->pipe)) { |
| 515 | dev_err(dev, "pipe iso is not supported now\n"); |
| 516 | return -EIO; |
| 517 | } |
| 518 | |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 519 | /* this ureq will be freed on usbhsh_queue_done() */ |
| 520 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); |
| 521 | if (unlikely(!ureq)) { |
| 522 | dev_err(dev, "ureq alloc fail\n"); |
| 523 | return -ENOMEM; |
| 524 | } |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 525 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 526 | if (usb_pipein(urb->pipe)) |
| 527 | pipe->handler = &usbhs_fifo_pio_pop_handler; |
| 528 | else |
| 529 | pipe->handler = &usbhs_fifo_pio_push_handler; |
| 530 | |
| 531 | buf = (void *)(urb->transfer_buffer + urb->actual_length); |
| 532 | len = urb->transfer_buffer_length - urb->actual_length; |
| 533 | |
| 534 | dev_dbg(dev, "%s\n", __func__); |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 535 | usbhs_pkt_push(pipe, &ureq->pkt, usbhsh_queue_done, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 536 | buf, len, (urb->transfer_flags & URB_ZERO_PACKET)); |
| 537 | usbhs_pkt_start(pipe); |
| 538 | |
| 539 | return 0; |
| 540 | } |
| 541 | |
| 542 | /* |
| 543 | * DCP setup stage |
| 544 | */ |
| 545 | static int usbhsh_is_request_address(struct urb *urb) |
| 546 | { |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 547 | struct usb_ctrlrequest *req; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 548 | |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 549 | req = (struct usb_ctrlrequest *)urb->setup_packet; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 550 | |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 551 | if ((DeviceOutRequest == req->bRequestType << 8) && |
| 552 | (USB_REQ_SET_ADDRESS == req->bRequest)) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 553 | return 1; |
| 554 | else |
| 555 | return 0; |
| 556 | } |
| 557 | |
| 558 | static void usbhsh_setup_stage_packet_push(struct usbhsh_hpriv *hpriv, |
| 559 | struct urb *urb, |
| 560 | struct usbhs_pipe *pipe) |
| 561 | { |
| 562 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 563 | struct usb_ctrlrequest req; |
| 564 | struct device *dev = usbhs_priv_to_dev(priv); |
| 565 | |
| 566 | /* |
| 567 | * wait setup packet ACK |
| 568 | * see |
| 569 | * usbhsh_irq_setup_ack() |
| 570 | * usbhsh_irq_setup_err() |
| 571 | */ |
Kuninori Morimoto | 7fccd48 | 2011-10-23 22:55:54 -0700 | [diff] [blame] | 572 | init_completion(&hpriv->setup_ack_done); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 573 | |
| 574 | /* copy original request */ |
| 575 | memcpy(&req, urb->setup_packet, sizeof(struct usb_ctrlrequest)); |
| 576 | |
| 577 | /* |
| 578 | * renesas_usbhs can not use original usb address. |
| 579 | * see HARDWARE LIMITATION. |
| 580 | * modify usb address here. |
| 581 | */ |
| 582 | if (usbhsh_is_request_address(urb)) { |
| 583 | /* FIXME */ |
| 584 | req.wValue = 1; |
| 585 | dev_dbg(dev, "create new address - %d\n", req.wValue); |
| 586 | } |
| 587 | |
| 588 | /* set request */ |
| 589 | usbhs_usbreq_set_val(priv, &req); |
| 590 | |
| 591 | /* |
| 592 | * wait setup packet ACK |
| 593 | */ |
Kuninori Morimoto | 7fccd48 | 2011-10-23 22:55:54 -0700 | [diff] [blame] | 594 | wait_for_completion(&hpriv->setup_ack_done); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 595 | |
| 596 | dev_dbg(dev, "%s done\n", __func__); |
| 597 | } |
| 598 | |
| 599 | /* |
| 600 | * DCP data stage |
| 601 | */ |
| 602 | static void usbhsh_data_stage_packet_done(struct usbhs_priv *priv, |
| 603 | struct usbhs_pkt *pkt) |
| 604 | { |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 605 | struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 606 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 607 | |
| 608 | /* this ureq was connected to urb when usbhsh_urb_enqueue() */ |
| 609 | |
Kuninori Morimoto | 25234b4 | 2011-10-23 19:56:53 -0700 | [diff] [blame] | 610 | usbhsh_ureq_free(hpriv, ureq); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 611 | } |
| 612 | |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 613 | static int usbhsh_data_stage_packet_push(struct usbhsh_hpriv *hpriv, |
| 614 | struct urb *urb, |
| 615 | struct usbhs_pipe *pipe, |
| 616 | gfp_t mem_flags) |
| 617 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 618 | { |
| 619 | struct usbhsh_request *ureq; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 620 | |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 621 | /* this ureq will be freed on usbhsh_data_stage_packet_done() */ |
| 622 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); |
| 623 | if (unlikely(!ureq)) |
| 624 | return -ENOMEM; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 625 | |
| 626 | if (usb_pipein(urb->pipe)) |
| 627 | pipe->handler = &usbhs_dcp_data_stage_in_handler; |
| 628 | else |
| 629 | pipe->handler = &usbhs_dcp_data_stage_out_handler; |
| 630 | |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 631 | usbhs_pkt_push(pipe, &ureq->pkt, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 632 | usbhsh_data_stage_packet_done, |
| 633 | urb->transfer_buffer, |
| 634 | urb->transfer_buffer_length, |
| 635 | (urb->transfer_flags & URB_ZERO_PACKET)); |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 636 | |
| 637 | return 0; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 638 | } |
| 639 | |
| 640 | /* |
| 641 | * DCP status stage |
| 642 | */ |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 643 | static int usbhsh_status_stage_packet_push(struct usbhsh_hpriv *hpriv, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 644 | struct urb *urb, |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 645 | struct usbhs_pipe *pipe, |
| 646 | gfp_t mem_flags) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 647 | { |
| 648 | struct usbhsh_request *ureq; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 649 | |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 650 | /* This ureq will be freed on usbhsh_queue_done() */ |
| 651 | ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags); |
| 652 | if (unlikely(!ureq)) |
| 653 | return -ENOMEM; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 654 | |
| 655 | if (usb_pipein(urb->pipe)) |
| 656 | pipe->handler = &usbhs_dcp_status_stage_in_handler; |
| 657 | else |
| 658 | pipe->handler = &usbhs_dcp_status_stage_out_handler; |
| 659 | |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 660 | usbhs_pkt_push(pipe, &ureq->pkt, |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 661 | usbhsh_queue_done, |
| 662 | NULL, |
| 663 | urb->transfer_buffer_length, |
| 664 | 0); |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 665 | |
| 666 | return 0; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 667 | } |
| 668 | |
| 669 | static int usbhsh_dcp_queue_push(struct usb_hcd *hcd, |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 670 | struct urb *urb, |
| 671 | gfp_t mflags) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 672 | { |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 673 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
Kuninori Morimoto | 3eddc9e | 2011-10-31 00:48:46 -0700 | [diff] [blame] | 674 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep); |
| 675 | struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 676 | struct device *dev = usbhsh_hcd_to_dev(hcd); |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 677 | int ret; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 678 | |
| 679 | dev_dbg(dev, "%s\n", __func__); |
| 680 | |
| 681 | /* |
| 682 | * setup stage |
| 683 | * |
| 684 | * usbhsh_send_setup_stage_packet() wait SACK/SIGN |
| 685 | */ |
| 686 | usbhsh_setup_stage_packet_push(hpriv, urb, pipe); |
| 687 | |
| 688 | /* |
| 689 | * data stage |
| 690 | * |
| 691 | * It is pushed only when urb has buffer. |
| 692 | */ |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 693 | if (urb->transfer_buffer_length) { |
| 694 | ret = usbhsh_data_stage_packet_push(hpriv, urb, pipe, mflags); |
| 695 | if (ret < 0) { |
| 696 | dev_err(dev, "data stage failed\n"); |
| 697 | return ret; |
| 698 | } |
| 699 | } |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 700 | |
| 701 | /* |
| 702 | * status stage |
| 703 | */ |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 704 | ret = usbhsh_status_stage_packet_push(hpriv, urb, pipe, mflags); |
| 705 | if (ret < 0) { |
| 706 | dev_err(dev, "status stage failed\n"); |
| 707 | return ret; |
| 708 | } |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 709 | |
| 710 | /* |
| 711 | * start pushed packets |
| 712 | */ |
| 713 | usbhs_pkt_start(pipe); |
| 714 | |
| 715 | return 0; |
| 716 | } |
| 717 | |
| 718 | /* |
| 719 | * dma map functions |
| 720 | */ |
| 721 | static int usbhsh_dma_map_ctrl(struct usbhs_pkt *pkt, int map) |
| 722 | { |
| 723 | return 0; |
| 724 | } |
| 725 | |
| 726 | /* |
| 727 | * for hc_driver |
| 728 | */ |
| 729 | static int usbhsh_host_start(struct usb_hcd *hcd) |
| 730 | { |
| 731 | return 0; |
| 732 | } |
| 733 | |
| 734 | static void usbhsh_host_stop(struct usb_hcd *hcd) |
| 735 | { |
| 736 | } |
| 737 | |
| 738 | static int usbhsh_urb_enqueue(struct usb_hcd *hcd, |
| 739 | struct urb *urb, |
| 740 | gfp_t mem_flags) |
| 741 | { |
| 742 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
| 743 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 744 | struct device *dev = usbhs_priv_to_dev(priv); |
| 745 | struct usb_device *usbv = usbhsh_urb_to_usbv(urb); |
| 746 | struct usb_host_endpoint *ep = urb->ep; |
Kuninori Morimoto | 7aac8d1 | 2011-10-31 00:49:09 -0700 | [diff] [blame] | 747 | struct usbhsh_device *new_udev = NULL; |
Kuninori Morimoto | 73ef635 | 2011-10-24 02:24:49 -0700 | [diff] [blame] | 748 | int is_dir_in = usb_pipein(urb->pipe); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 749 | |
| 750 | int ret; |
| 751 | |
Kuninori Morimoto | 73ef635 | 2011-10-24 02:24:49 -0700 | [diff] [blame] | 752 | dev_dbg(dev, "%s (%s)\n", __func__, is_dir_in ? "in" : "out"); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 753 | |
| 754 | ret = usb_hcd_link_urb_to_ep(hcd, urb); |
| 755 | if (ret) |
| 756 | goto usbhsh_urb_enqueue_error_not_linked; |
| 757 | |
| 758 | /* |
Kuninori Morimoto | 7aac8d1 | 2011-10-31 00:49:09 -0700 | [diff] [blame] | 759 | * attach udev if needed |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 760 | */ |
Kuninori Morimoto | 7aac8d1 | 2011-10-31 00:49:09 -0700 | [diff] [blame] | 761 | if (!usbhsh_usbv_to_udev(usbv)) { |
| 762 | new_udev = usbhsh_device_attach(hpriv, urb); |
Kuninori Morimoto | 37332ee | 2011-12-08 18:25:37 -0800 | [diff] [blame] | 763 | if (!new_udev) { |
| 764 | ret = -EIO; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 765 | goto usbhsh_urb_enqueue_error_not_linked; |
Kuninori Morimoto | 37332ee | 2011-12-08 18:25:37 -0800 | [diff] [blame] | 766 | } |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 767 | } |
| 768 | |
| 769 | /* |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 770 | * attach endpoint if needed |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 771 | */ |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 772 | if (!usbhsh_ep_to_uep(ep)) { |
| 773 | ret = usbhsh_endpoint_attach(hpriv, urb, mem_flags); |
| 774 | if (ret < 0) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 775 | goto usbhsh_urb_enqueue_error_free_device; |
| 776 | } |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 777 | |
| 778 | /* |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 779 | * push packet |
| 780 | */ |
| 781 | if (usb_pipecontrol(urb->pipe)) |
Kuninori Morimoto | 3eddc9e | 2011-10-31 00:48:46 -0700 | [diff] [blame] | 782 | ret = usbhsh_dcp_queue_push(hcd, urb, mem_flags); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 783 | else |
Kuninori Morimoto | 3eddc9e | 2011-10-31 00:48:46 -0700 | [diff] [blame] | 784 | ret = usbhsh_queue_push(hcd, urb, mem_flags); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 785 | |
Kuninori Morimoto | ee8a0bf | 2011-10-31 00:46:50 -0700 | [diff] [blame] | 786 | return ret; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 787 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 788 | usbhsh_urb_enqueue_error_free_device: |
| 789 | if (new_udev) |
Kuninori Morimoto | 7aac8d1 | 2011-10-31 00:49:09 -0700 | [diff] [blame] | 790 | usbhsh_device_detach(hpriv, new_udev); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 791 | usbhsh_urb_enqueue_error_not_linked: |
| 792 | |
| 793 | dev_dbg(dev, "%s error\n", __func__); |
| 794 | |
| 795 | return ret; |
| 796 | } |
| 797 | |
| 798 | static int usbhsh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) |
| 799 | { |
| 800 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
| 801 | struct usbhsh_request *ureq = usbhsh_urb_to_ureq(urb); |
| 802 | |
Kuninori Morimoto | 5479654 | 2011-12-08 18:26:07 -0800 | [diff] [blame^] | 803 | if (ureq) { |
| 804 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 805 | struct usbhs_pkt *pkt = &ureq->pkt; |
| 806 | |
| 807 | usbhs_pkt_pop(pkt->pipe, pkt); |
| 808 | usbhsh_queue_done(priv, pkt); |
| 809 | } |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 810 | |
| 811 | return 0; |
| 812 | } |
| 813 | |
| 814 | static void usbhsh_endpoint_disable(struct usb_hcd *hcd, |
| 815 | struct usb_host_endpoint *ep) |
| 816 | { |
| 817 | struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep); |
| 818 | struct usbhsh_device *udev; |
| 819 | struct usbhsh_hpriv *hpriv; |
| 820 | |
| 821 | /* |
| 822 | * this function might be called manytimes by same hcd/ep |
Kuninori Morimoto | fca8ab7 | 2011-10-31 00:47:24 -0700 | [diff] [blame] | 823 | * in-endpoint == out-endpoint if ep == dcp. |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 824 | */ |
| 825 | if (!uep) |
| 826 | return; |
| 827 | |
| 828 | udev = usbhsh_uep_to_udev(uep); |
| 829 | hpriv = usbhsh_hcd_to_hpriv(hcd); |
| 830 | |
Kuninori Morimoto | 4825093 | 2011-10-31 00:48:59 -0700 | [diff] [blame] | 831 | usbhsh_endpoint_detach(hpriv, ep); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 832 | |
| 833 | /* |
| 834 | * if there is no endpoint, |
| 835 | * free device |
| 836 | */ |
| 837 | if (!usbhsh_device_has_endpoint(udev)) |
Kuninori Morimoto | 7aac8d1 | 2011-10-31 00:49:09 -0700 | [diff] [blame] | 838 | usbhsh_device_detach(hpriv, udev); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 839 | } |
| 840 | |
| 841 | static int usbhsh_hub_status_data(struct usb_hcd *hcd, char *buf) |
| 842 | { |
| 843 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
| 844 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 845 | struct device *dev = usbhs_priv_to_dev(priv); |
| 846 | int roothub_id = 1; /* only 1 root hub */ |
| 847 | |
| 848 | /* |
| 849 | * does port stat was changed ? |
| 850 | * check USB_PORT_STAT_C_xxx << 16 |
| 851 | */ |
| 852 | if (usbhsh_port_stat_get(hpriv) & 0xFFFF0000) |
| 853 | *buf = (1 << roothub_id); |
| 854 | else |
| 855 | *buf = 0; |
| 856 | |
| 857 | dev_dbg(dev, "%s (%02x)\n", __func__, *buf); |
| 858 | |
| 859 | return !!(*buf); |
| 860 | } |
| 861 | |
| 862 | static int __usbhsh_hub_hub_feature(struct usbhsh_hpriv *hpriv, |
| 863 | u16 typeReq, u16 wValue, |
| 864 | u16 wIndex, char *buf, u16 wLength) |
| 865 | { |
| 866 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 867 | struct device *dev = usbhs_priv_to_dev(priv); |
| 868 | |
| 869 | switch (wValue) { |
| 870 | case C_HUB_OVER_CURRENT: |
| 871 | case C_HUB_LOCAL_POWER: |
| 872 | dev_dbg(dev, "%s :: C_HUB_xx\n", __func__); |
| 873 | return 0; |
| 874 | } |
| 875 | |
| 876 | return -EPIPE; |
| 877 | } |
| 878 | |
| 879 | static int __usbhsh_hub_port_feature(struct usbhsh_hpriv *hpriv, |
| 880 | u16 typeReq, u16 wValue, |
| 881 | u16 wIndex, char *buf, u16 wLength) |
| 882 | { |
| 883 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 884 | struct device *dev = usbhs_priv_to_dev(priv); |
| 885 | int enable = (typeReq == SetPortFeature); |
| 886 | int speed, i, timeout = 128; |
| 887 | int roothub_id = 1; /* only 1 root hub */ |
| 888 | |
| 889 | /* common error */ |
| 890 | if (wIndex > roothub_id || wLength != 0) |
| 891 | return -EPIPE; |
| 892 | |
| 893 | /* check wValue */ |
| 894 | switch (wValue) { |
| 895 | case USB_PORT_FEAT_POWER: |
| 896 | usbhs_vbus_ctrl(priv, enable); |
| 897 | dev_dbg(dev, "%s :: USB_PORT_FEAT_POWER\n", __func__); |
| 898 | break; |
| 899 | |
| 900 | case USB_PORT_FEAT_ENABLE: |
| 901 | case USB_PORT_FEAT_SUSPEND: |
| 902 | case USB_PORT_FEAT_C_ENABLE: |
| 903 | case USB_PORT_FEAT_C_SUSPEND: |
| 904 | case USB_PORT_FEAT_C_CONNECTION: |
| 905 | case USB_PORT_FEAT_C_OVER_CURRENT: |
| 906 | case USB_PORT_FEAT_C_RESET: |
| 907 | dev_dbg(dev, "%s :: USB_PORT_FEAT_xxx\n", __func__); |
| 908 | break; |
| 909 | |
| 910 | case USB_PORT_FEAT_RESET: |
| 911 | if (!enable) |
| 912 | break; |
| 913 | |
| 914 | usbhsh_port_stat_clear(hpriv, |
| 915 | USB_PORT_STAT_HIGH_SPEED | |
| 916 | USB_PORT_STAT_LOW_SPEED); |
| 917 | |
| 918 | usbhs_bus_send_reset(priv); |
| 919 | msleep(20); |
| 920 | usbhs_bus_send_sof_enable(priv); |
| 921 | |
| 922 | for (i = 0; i < timeout ; i++) { |
| 923 | switch (usbhs_bus_get_speed(priv)) { |
| 924 | case USB_SPEED_LOW: |
| 925 | speed = USB_PORT_STAT_LOW_SPEED; |
| 926 | goto got_usb_bus_speed; |
| 927 | case USB_SPEED_HIGH: |
| 928 | speed = USB_PORT_STAT_HIGH_SPEED; |
| 929 | goto got_usb_bus_speed; |
| 930 | case USB_SPEED_FULL: |
| 931 | speed = 0; |
| 932 | goto got_usb_bus_speed; |
| 933 | } |
| 934 | |
| 935 | msleep(20); |
| 936 | } |
| 937 | return -EPIPE; |
| 938 | |
| 939 | got_usb_bus_speed: |
| 940 | usbhsh_port_stat_set(hpriv, speed); |
| 941 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_ENABLE); |
| 942 | |
| 943 | dev_dbg(dev, "%s :: USB_PORT_FEAT_RESET (speed = %d)\n", |
| 944 | __func__, speed); |
| 945 | |
| 946 | /* status change is not needed */ |
| 947 | return 0; |
| 948 | |
| 949 | default: |
| 950 | return -EPIPE; |
| 951 | } |
| 952 | |
| 953 | /* set/clear status */ |
| 954 | if (enable) |
| 955 | usbhsh_port_stat_set(hpriv, (1 << wValue)); |
| 956 | else |
| 957 | usbhsh_port_stat_clear(hpriv, (1 << wValue)); |
| 958 | |
| 959 | return 0; |
| 960 | } |
| 961 | |
| 962 | static int __usbhsh_hub_get_status(struct usbhsh_hpriv *hpriv, |
| 963 | u16 typeReq, u16 wValue, |
| 964 | u16 wIndex, char *buf, u16 wLength) |
| 965 | { |
| 966 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 967 | struct usb_hub_descriptor *desc = (struct usb_hub_descriptor *)buf; |
| 968 | struct device *dev = usbhs_priv_to_dev(priv); |
| 969 | int roothub_id = 1; /* only 1 root hub */ |
| 970 | |
| 971 | switch (typeReq) { |
| 972 | case GetHubStatus: |
| 973 | dev_dbg(dev, "%s :: GetHubStatus\n", __func__); |
| 974 | |
| 975 | *buf = 0x00; |
| 976 | break; |
| 977 | |
| 978 | case GetPortStatus: |
| 979 | if (wIndex != roothub_id) |
| 980 | return -EPIPE; |
| 981 | |
| 982 | dev_dbg(dev, "%s :: GetPortStatus\n", __func__); |
| 983 | *(__le32 *)buf = cpu_to_le32(usbhsh_port_stat_get(hpriv)); |
| 984 | break; |
| 985 | |
| 986 | case GetHubDescriptor: |
| 987 | desc->bDescriptorType = 0x29; |
| 988 | desc->bHubContrCurrent = 0; |
| 989 | desc->bNbrPorts = roothub_id; |
| 990 | desc->bDescLength = 9; |
| 991 | desc->bPwrOn2PwrGood = 0; |
| 992 | desc->wHubCharacteristics = cpu_to_le16(0x0011); |
| 993 | desc->u.hs.DeviceRemovable[0] = (roothub_id << 1); |
| 994 | desc->u.hs.DeviceRemovable[1] = ~0; |
| 995 | dev_dbg(dev, "%s :: GetHubDescriptor\n", __func__); |
| 996 | break; |
| 997 | } |
| 998 | |
| 999 | return 0; |
| 1000 | } |
| 1001 | |
| 1002 | static int usbhsh_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, |
| 1003 | u16 wIndex, char *buf, u16 wLength) |
| 1004 | { |
| 1005 | struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd); |
| 1006 | struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv); |
| 1007 | struct device *dev = usbhs_priv_to_dev(priv); |
| 1008 | int ret = -EPIPE; |
| 1009 | |
| 1010 | switch (typeReq) { |
| 1011 | |
| 1012 | /* Hub Feature */ |
| 1013 | case ClearHubFeature: |
| 1014 | case SetHubFeature: |
| 1015 | ret = __usbhsh_hub_hub_feature(hpriv, typeReq, |
| 1016 | wValue, wIndex, buf, wLength); |
| 1017 | break; |
| 1018 | |
| 1019 | /* Port Feature */ |
| 1020 | case SetPortFeature: |
| 1021 | case ClearPortFeature: |
| 1022 | ret = __usbhsh_hub_port_feature(hpriv, typeReq, |
| 1023 | wValue, wIndex, buf, wLength); |
| 1024 | break; |
| 1025 | |
| 1026 | /* Get status */ |
| 1027 | case GetHubStatus: |
| 1028 | case GetPortStatus: |
| 1029 | case GetHubDescriptor: |
| 1030 | ret = __usbhsh_hub_get_status(hpriv, typeReq, |
| 1031 | wValue, wIndex, buf, wLength); |
| 1032 | break; |
| 1033 | } |
| 1034 | |
| 1035 | dev_dbg(dev, "typeReq = %x, ret = %d, port_stat = %x\n", |
| 1036 | typeReq, ret, usbhsh_port_stat_get(hpriv)); |
| 1037 | |
| 1038 | return ret; |
| 1039 | } |
| 1040 | |
| 1041 | static struct hc_driver usbhsh_driver = { |
| 1042 | .description = usbhsh_hcd_name, |
| 1043 | .hcd_priv_size = sizeof(struct usbhsh_hpriv), |
| 1044 | |
| 1045 | /* |
| 1046 | * generic hardware linkage |
| 1047 | */ |
| 1048 | .flags = HCD_USB2, |
| 1049 | |
| 1050 | .start = usbhsh_host_start, |
| 1051 | .stop = usbhsh_host_stop, |
| 1052 | |
| 1053 | /* |
| 1054 | * managing i/o requests and associated device resources |
| 1055 | */ |
| 1056 | .urb_enqueue = usbhsh_urb_enqueue, |
| 1057 | .urb_dequeue = usbhsh_urb_dequeue, |
| 1058 | .endpoint_disable = usbhsh_endpoint_disable, |
| 1059 | |
| 1060 | /* |
| 1061 | * root hub |
| 1062 | */ |
| 1063 | .hub_status_data = usbhsh_hub_status_data, |
| 1064 | .hub_control = usbhsh_hub_control, |
| 1065 | }; |
| 1066 | |
| 1067 | /* |
| 1068 | * interrupt functions |
| 1069 | */ |
| 1070 | static int usbhsh_irq_attch(struct usbhs_priv *priv, |
| 1071 | struct usbhs_irq_state *irq_state) |
| 1072 | { |
| 1073 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 1074 | struct device *dev = usbhs_priv_to_dev(priv); |
| 1075 | |
| 1076 | dev_dbg(dev, "device attached\n"); |
| 1077 | |
| 1078 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_CONNECTION); |
| 1079 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16); |
| 1080 | |
| 1081 | return 0; |
| 1082 | } |
| 1083 | |
| 1084 | static int usbhsh_irq_dtch(struct usbhs_priv *priv, |
| 1085 | struct usbhs_irq_state *irq_state) |
| 1086 | { |
| 1087 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 1088 | struct device *dev = usbhs_priv_to_dev(priv); |
| 1089 | |
| 1090 | dev_dbg(dev, "device detached\n"); |
| 1091 | |
| 1092 | usbhsh_port_stat_clear(hpriv, USB_PORT_STAT_CONNECTION); |
| 1093 | usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16); |
| 1094 | |
| 1095 | return 0; |
| 1096 | } |
| 1097 | |
| 1098 | static int usbhsh_irq_setup_ack(struct usbhs_priv *priv, |
| 1099 | struct usbhs_irq_state *irq_state) |
| 1100 | { |
| 1101 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 1102 | struct device *dev = usbhs_priv_to_dev(priv); |
| 1103 | |
| 1104 | dev_dbg(dev, "setup packet OK\n"); |
| 1105 | |
Kuninori Morimoto | 7fccd48 | 2011-10-23 22:55:54 -0700 | [diff] [blame] | 1106 | complete(&hpriv->setup_ack_done); /* see usbhsh_urb_enqueue() */ |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1107 | |
| 1108 | return 0; |
| 1109 | } |
| 1110 | |
| 1111 | static int usbhsh_irq_setup_err(struct usbhs_priv *priv, |
| 1112 | struct usbhs_irq_state *irq_state) |
| 1113 | { |
| 1114 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 1115 | struct device *dev = usbhs_priv_to_dev(priv); |
| 1116 | |
| 1117 | dev_dbg(dev, "setup packet Err\n"); |
| 1118 | |
Kuninori Morimoto | 7fccd48 | 2011-10-23 22:55:54 -0700 | [diff] [blame] | 1119 | complete(&hpriv->setup_ack_done); /* see usbhsh_urb_enqueue() */ |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1120 | |
| 1121 | return 0; |
| 1122 | } |
| 1123 | |
| 1124 | /* |
| 1125 | * module start/stop |
| 1126 | */ |
| 1127 | static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv) |
| 1128 | { |
| 1129 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 1130 | struct usbhsh_pipe_info *pipe_info = hpriv->pipe_info; |
| 1131 | struct usbhs_pipe *pipe; |
| 1132 | u32 *pipe_type = usbhs_get_dparam(priv, pipe_type); |
| 1133 | int pipe_size = usbhs_get_dparam(priv, pipe_size); |
| 1134 | int old_type, dir_in, i; |
| 1135 | |
| 1136 | /* init all pipe */ |
| 1137 | old_type = USB_ENDPOINT_XFER_CONTROL; |
| 1138 | for (i = 0; i < pipe_size; i++) { |
| 1139 | pipe_info[i].usr_cnt = 0; |
| 1140 | |
| 1141 | /* |
| 1142 | * data "output" will be finished as soon as possible, |
| 1143 | * but there is no guaranty at data "input" case. |
| 1144 | * |
| 1145 | * "input" needs "standby" pipe. |
| 1146 | * So, "input" direction pipe > "output" direction pipe |
| 1147 | * is good idea. |
| 1148 | * |
| 1149 | * 1st USB_ENDPOINT_XFER_xxx will be output direction, |
| 1150 | * and the other will be input direction here. |
| 1151 | * |
| 1152 | * ex) |
| 1153 | * ... |
| 1154 | * USB_ENDPOINT_XFER_ISOC -> dir out |
| 1155 | * USB_ENDPOINT_XFER_ISOC -> dir in |
| 1156 | * USB_ENDPOINT_XFER_BULK -> dir out |
| 1157 | * USB_ENDPOINT_XFER_BULK -> dir in |
| 1158 | * USB_ENDPOINT_XFER_BULK -> dir in |
| 1159 | * ... |
| 1160 | */ |
| 1161 | dir_in = (pipe_type[i] == old_type); |
| 1162 | old_type = pipe_type[i]; |
| 1163 | |
| 1164 | if (USB_ENDPOINT_XFER_CONTROL == pipe_type[i]) { |
| 1165 | pipe = usbhs_dcp_malloc(priv); |
| 1166 | usbhsh_hpriv_to_dcp(hpriv) = pipe; |
| 1167 | } else { |
| 1168 | pipe = usbhs_pipe_malloc(priv, |
| 1169 | pipe_type[i], |
| 1170 | dir_in); |
| 1171 | } |
| 1172 | |
| 1173 | pipe->mod_private = pipe_info + i; |
| 1174 | } |
| 1175 | } |
| 1176 | |
| 1177 | static int usbhsh_start(struct usbhs_priv *priv) |
| 1178 | { |
| 1179 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 1180 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
| 1181 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); |
| 1182 | struct device *dev = usbhs_priv_to_dev(priv); |
| 1183 | int ret; |
| 1184 | |
| 1185 | /* add hcd */ |
| 1186 | ret = usb_add_hcd(hcd, 0, 0); |
| 1187 | if (ret < 0) |
| 1188 | return 0; |
| 1189 | |
| 1190 | /* |
| 1191 | * pipe initialize and enable DCP |
| 1192 | */ |
| 1193 | usbhs_pipe_init(priv, |
| 1194 | usbhsh_dma_map_ctrl); |
| 1195 | usbhs_fifo_init(priv); |
| 1196 | usbhsh_pipe_init_for_host(priv); |
| 1197 | |
| 1198 | /* |
| 1199 | * system config enble |
| 1200 | * - HI speed |
| 1201 | * - host |
| 1202 | * - usb module |
| 1203 | */ |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1204 | usbhs_sys_host_ctrl(priv, 1); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1205 | |
| 1206 | /* |
| 1207 | * enable irq callback |
| 1208 | */ |
| 1209 | mod->irq_attch = usbhsh_irq_attch; |
| 1210 | mod->irq_dtch = usbhsh_irq_dtch; |
| 1211 | mod->irq_sack = usbhsh_irq_setup_ack; |
| 1212 | mod->irq_sign = usbhsh_irq_setup_err; |
| 1213 | usbhs_irq_callback_update(priv, mod); |
| 1214 | |
| 1215 | dev_dbg(dev, "start host\n"); |
| 1216 | |
| 1217 | return ret; |
| 1218 | } |
| 1219 | |
| 1220 | static int usbhsh_stop(struct usbhs_priv *priv) |
| 1221 | { |
| 1222 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 1223 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
Kuninori Morimoto | 146ee50 | 2011-10-24 02:25:07 -0700 | [diff] [blame] | 1224 | struct usbhs_mod *mod = usbhs_mod_get_current(priv); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1225 | struct device *dev = usbhs_priv_to_dev(priv); |
| 1226 | |
Kuninori Morimoto | 146ee50 | 2011-10-24 02:25:07 -0700 | [diff] [blame] | 1227 | /* |
| 1228 | * disable irq callback |
| 1229 | */ |
| 1230 | mod->irq_attch = NULL; |
| 1231 | mod->irq_dtch = NULL; |
| 1232 | mod->irq_sack = NULL; |
| 1233 | mod->irq_sign = NULL; |
| 1234 | usbhs_irq_callback_update(priv, mod); |
| 1235 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1236 | usb_remove_hcd(hcd); |
| 1237 | |
| 1238 | /* disable sys */ |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1239 | usbhs_sys_host_ctrl(priv, 0); |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1240 | |
| 1241 | dev_dbg(dev, "quit host\n"); |
| 1242 | |
| 1243 | return 0; |
| 1244 | } |
| 1245 | |
Kuninori Morimoto | b7a8d17 | 2011-10-26 19:33:49 -0700 | [diff] [blame] | 1246 | int usbhs_mod_host_probe(struct usbhs_priv *priv) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1247 | { |
| 1248 | struct usbhsh_hpriv *hpriv; |
| 1249 | struct usb_hcd *hcd; |
| 1250 | struct usbhsh_pipe_info *pipe_info; |
| 1251 | struct usbhsh_device *udev; |
| 1252 | struct device *dev = usbhs_priv_to_dev(priv); |
| 1253 | int pipe_size = usbhs_get_dparam(priv, pipe_size); |
| 1254 | int i; |
| 1255 | |
| 1256 | /* initialize hcd */ |
| 1257 | hcd = usb_create_hcd(&usbhsh_driver, dev, usbhsh_hcd_name); |
| 1258 | if (!hcd) { |
| 1259 | dev_err(dev, "Failed to create hcd\n"); |
| 1260 | return -ENOMEM; |
| 1261 | } |
| 1262 | |
| 1263 | pipe_info = kzalloc(sizeof(*pipe_info) * pipe_size, GFP_KERNEL); |
| 1264 | if (!pipe_info) { |
| 1265 | dev_err(dev, "Could not allocate pipe_info\n"); |
| 1266 | goto usbhs_mod_host_probe_err; |
| 1267 | } |
| 1268 | |
| 1269 | /* |
| 1270 | * CAUTION |
| 1271 | * |
| 1272 | * There is no guarantee that it is possible to access usb module here. |
| 1273 | * Don't accesses to it. |
| 1274 | * The accesse will be enable after "usbhsh_start" |
| 1275 | */ |
| 1276 | |
| 1277 | hpriv = usbhsh_hcd_to_hpriv(hcd); |
| 1278 | |
| 1279 | /* |
| 1280 | * register itself |
| 1281 | */ |
| 1282 | usbhs_mod_register(priv, &hpriv->mod, USBHS_HOST); |
| 1283 | |
| 1284 | /* init hpriv */ |
| 1285 | hpriv->mod.name = "host"; |
| 1286 | hpriv->mod.start = usbhsh_start; |
| 1287 | hpriv->mod.stop = usbhsh_stop; |
| 1288 | hpriv->pipe_info = pipe_info; |
| 1289 | hpriv->pipe_size = pipe_size; |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1290 | usbhsh_port_stat_init(hpriv); |
| 1291 | |
| 1292 | /* init all device */ |
| 1293 | usbhsh_for_each_udev_with_dev0(udev, hpriv, i) { |
| 1294 | udev->usbv = NULL; |
| 1295 | INIT_LIST_HEAD(&udev->ep_list_head); |
| 1296 | } |
| 1297 | |
| 1298 | dev_info(dev, "host probed\n"); |
| 1299 | |
| 1300 | return 0; |
| 1301 | |
| 1302 | usbhs_mod_host_probe_err: |
| 1303 | usb_put_hcd(hcd); |
| 1304 | |
| 1305 | return -ENOMEM; |
| 1306 | } |
| 1307 | |
Kuninori Morimoto | b7a8d17 | 2011-10-26 19:33:49 -0700 | [diff] [blame] | 1308 | int usbhs_mod_host_remove(struct usbhs_priv *priv) |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1309 | { |
| 1310 | struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv); |
| 1311 | struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv); |
| 1312 | |
Kuninori Morimoto | 034d7c1 | 2011-10-10 22:07:40 -0700 | [diff] [blame] | 1313 | usb_put_hcd(hcd); |
| 1314 | |
| 1315 | return 0; |
| 1316 | } |