diff options
Diffstat (limited to 'drivers/usb/gadget/pxa27x_udc.h')
| -rw-r--r-- | drivers/usb/gadget/pxa27x_udc.h | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/drivers/usb/gadget/pxa27x_udc.h b/drivers/usb/gadget/pxa27x_udc.h index 1d1b7936ee1..28f2b53530f 100644 --- a/drivers/usb/gadget/pxa27x_udc.h +++ b/drivers/usb/gadget/pxa27x_udc.h @@ -9,15 +9,6 @@ * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_USB_GADGET_PXA27X_H @@ -26,6 +17,7 @@ #include <linux/types.h> #include <linux/spinlock.h> #include <linux/io.h> +#include <linux/usb/otg.h> /* * Register definitions @@ -87,9 +79,9 @@ #define UDCISR_INT_MASK (UDCICR_FIFOERR | UDCICR_PKTCOMPL) #define UDCOTGICR_IESF (1 << 24) /* OTG SET_FEATURE command recvd */ -#define UDCOTGICR_IEXR (1 << 17) /* Extra Transciever Interrupt +#define UDCOTGICR_IEXR (1 << 17) /* Extra Transceiver Interrupt Rising Edge Interrupt Enable */ -#define UDCOTGICR_IEXF (1 << 16) /* Extra Transciever Interrupt +#define UDCOTGICR_IEXF (1 << 16) /* Extra Transceiver Interrupt Falling Edge Interrupt Enable */ #define UDCOTGICR_IEVV40R (1 << 9) /* OTG Vbus Valid 4.0V Rising Edge Interrupt Enable */ @@ -129,6 +121,8 @@ #define UP2OCR_HXOE (1 << 17) /* Transceiver Output Enable */ #define UP2OCR_SEOS (1 << 24) /* Single-Ended Output Select */ +#define UDCCSR0_ACM (1 << 9) /* Ack Control Mode */ +#define UDCCSR0_AREN (1 << 8) /* Ack Response Enable */ #define UDCCSR0_SA (1 << 7) /* Setup Active */ #define UDCCSR0_RNE (1 << 6) /* Receive FIFO Not Empty */ #define UDCCSR0_FST (1 << 5) /* Force Stall */ @@ -315,6 +309,11 @@ struct udc_usb_ep { * @queue: requests queue * @lock: lock to pxa_ep data (queues and stats) * @enabled: true when endpoint enabled (not stopped by gadget layer) + * @in_handle_ep: number of recursions of handle_ep() function + * Prevents deadlocks or infinite recursions of types : + * irq->handle_ep()->req_done()->req.complete()->pxa_ep_queue()->handle_ep() + * or + * pxa_ep_queue()->handle_ep()->req_done()->req.complete()->pxa_ep_queue() * @idx: endpoint index (1 => epA, 2 => epB, ..., 24 => epX) * @name: endpoint name (for trace/debug purpose) * @dir_in: 1 if IN endpoint, 0 if OUT endpoint @@ -343,6 +342,7 @@ struct pxa_ep { spinlock_t lock; /* Protects this structure */ /* (queues, stats) */ unsigned enabled:1; + unsigned in_handle_ep:1; unsigned idx:5; char *name; @@ -351,7 +351,7 @@ struct pxa_ep { * Specific pxa endpoint data, needed for hardware initialization */ unsigned dir_in:1; - unsigned addr:3; + unsigned addr:4; unsigned config:2; unsigned interface:3; unsigned alternate:3; @@ -418,13 +418,17 @@ struct udc_stats { * @irq: udc irq * @clk: udc clock * @usb_gadget: udc gadget structure - * @driver: bound gadget (zero, g_ether, g_file_storage, ...) + * @driver: bound gadget (zero, g_ether, g_mass_storage, ...) * @dev: device * @mach: machine info, used to activate specific GPIO + * @transceiver: external transceiver to handle vbus sense and D+ pullup * @ep0state: control endpoint state machine state * @stats: statistics on udc usage * @udc_usb_ep: array of usb endpoints offered by the gadget * @pxa_ep: array of pxa available endpoints + * @enabled: UDC was enabled by a previous udc_enable() + * @pullup_on: if pullup resistor connected to D+ pin + * @pullup_resume: if pullup resistor should be connected to D+ pin on resume * @config: UDC active configuration * @last_interface: UDC interface of the last SET_INTERFACE host request * @last_alternate: UDC altsetting of the last SET_INTERFACE host request @@ -443,6 +447,7 @@ struct pxa_udc { struct usb_gadget_driver *driver; struct device *dev; struct pxa2xx_udc_mach_info *mach; + struct usb_phy *transceiver; enum ep0_state ep0state; struct udc_stats stats; @@ -450,6 +455,10 @@ struct pxa_udc { struct udc_usb_ep udc_usb_ep[NR_USB_ENDPOINTS]; struct pxa_ep pxa_ep[NR_PXA_ENDPOINTS]; + unsigned enabled:1; + unsigned pullup_on:1; + unsigned pullup_resume:1; + unsigned vbus_sensed:1; unsigned config:2; unsigned last_interface:3; unsigned last_alternate:3; @@ -464,6 +473,7 @@ struct pxa_udc { struct dentry *debugfs_eps; #endif }; +#define to_pxa(g) (container_of((g), struct pxa_udc, gadget)) static inline struct pxa_udc *to_gadget_udc(struct usb_gadget *gadget) { |