diff options
Diffstat (limited to 'drivers/usb/chipidea/udc.c')
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 67 |
1 files changed, 41 insertions, 26 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index db0cfde0cc3c..60ea932afe2b 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -72,6 +72,7 @@ static inline int ep_to_bit(struct ci_hdrc *ci, int n) /** * hw_device_state: enables/disables interrupts (execute without interruption) + * @ci: the controller * @dma: 0 => disable, !0 => enable and set dma engine * * This function returns an error code @@ -91,6 +92,7 @@ static int hw_device_state(struct ci_hdrc *ci, u32 dma) /** * hw_ep_flush: flush endpoint fifo (execute without interruption) + * @ci: the controller * @num: endpoint number * @dir: endpoint direction * @@ -112,6 +114,7 @@ static int hw_ep_flush(struct ci_hdrc *ci, int num, int dir) /** * hw_ep_disable: disables endpoint (execute without interruption) + * @ci: the controller * @num: endpoint number * @dir: endpoint direction * @@ -126,6 +129,7 @@ static int hw_ep_disable(struct ci_hdrc *ci, int num, int dir) /** * hw_ep_enable: enables endpoint (execute without interruption) + * @ci: the controller * @num: endpoint number * @dir: endpoint direction * @type: endpoint type @@ -161,6 +165,7 @@ static int hw_ep_enable(struct ci_hdrc *ci, int num, int dir, int type) /** * hw_ep_get_halt: return endpoint halt status + * @ci: the controller * @num: endpoint number * @dir: endpoint direction * @@ -175,6 +180,7 @@ static int hw_ep_get_halt(struct ci_hdrc *ci, int num, int dir) /** * hw_ep_prime: primes endpoint (execute without interruption) + * @ci: the controller * @num: endpoint number * @dir: endpoint direction * @is_ctrl: true if control endpoint @@ -205,6 +211,7 @@ static int hw_ep_prime(struct ci_hdrc *ci, int num, int dir, int is_ctrl) /** * hw_ep_set_halt: configures ep halt & resets data toggle after clear (execute * without interruption) + * @ci: the controller * @num: endpoint number * @dir: endpoint direction * @value: true => stall, false => unstall @@ -231,6 +238,7 @@ static int hw_ep_set_halt(struct ci_hdrc *ci, int num, int dir, int value) /** * hw_is_port_high_speed: test if port is high speed + * @ci: the controller * * This function returns true if high speed port */ @@ -243,6 +251,7 @@ static int hw_port_is_high_speed(struct ci_hdrc *ci) /** * hw_test_and_clear_complete: test & clear complete status (execute without * interruption) + * @ci: the controller * @n: endpoint number * * This function returns complete status @@ -256,6 +265,7 @@ static int hw_test_and_clear_complete(struct ci_hdrc *ci, int n) /** * hw_test_and_clear_intr_active: test & clear active interrupts (execute * without interruption) + * @ci: the controller * * This function returns active interrutps */ @@ -270,6 +280,7 @@ static u32 hw_test_and_clear_intr_active(struct ci_hdrc *ci) /** * hw_test_and_clear_setup_guard: test & clear setup guard (execute without * interruption) + * @ci: the controller * * This function returns guard value */ @@ -281,6 +292,7 @@ static int hw_test_and_clear_setup_guard(struct ci_hdrc *ci) /** * hw_test_and_set_setup_guard: test & set setup guard (execute without * interruption) + * @ci: the controller * * This function returns guard value */ @@ -291,6 +303,7 @@ static int hw_test_and_set_setup_guard(struct ci_hdrc *ci) /** * hw_usb_set_address: configures USB address (execute without interruption) + * @ci: the controller * @value: new USB address * * This function explicitly sets the address, without the "USBADRA" (advance) @@ -305,6 +318,7 @@ static void hw_usb_set_address(struct ci_hdrc *ci, u8 value) /** * hw_usb_reset: restart device after a bus reset (execute without * interruption) + * @ci: the controller * * This function returns an error code */ @@ -473,9 +487,10 @@ static void ci_add_buffer_entry(struct td_node *node, struct scatterlist *s) int empty_td_slot_index = (CI_MAX_BUF_SIZE - node->td_remaining_size) / CI_HDRC_PAGE_SIZE; int i; + u32 token; - node->ptr->token += - cpu_to_le32(sg_dma_len(s) << __ffs(TD_TOTAL_BYTES)); + token = le32_to_cpu(node->ptr->token) + (sg_dma_len(s) << __ffs(TD_TOTAL_BYTES)); + node->ptr->token = cpu_to_le32(token); for (i = empty_td_slot_index; i < TD_PAGE_COUNT; i++) { u32 page = (u32) sg_dma_address(s) + @@ -610,7 +625,7 @@ done: return ret; } -/* +/** * free_pending_td: remove a pending request for the endpoint * @hwep: endpoint */ @@ -636,8 +651,8 @@ static int reprime_dtd(struct ci_hdrc *ci, struct ci_hw_ep *hwep, /** * _hardware_dequeue: handles a request at hardware level - * @gadget: gadget - * @hwep: endpoint + * @hwep: endpoint + * @hwreq: request * * This function returns an error code */ @@ -1215,11 +1230,11 @@ __acquires(ci->lock) case USB_DEVICE_TEST_MODE: tmode = le16_to_cpu(req.wIndex) >> 8; switch (tmode) { - case TEST_J: - case TEST_K: - case TEST_SE0_NAK: - case TEST_PACKET: - case TEST_FORCE_EN: + case USB_TEST_J: + case USB_TEST_K: + case USB_TEST_SE0_NAK: + case USB_TEST_PACKET: + case USB_TEST_FORCE_ENABLE: ci->test_mode = tmode; err = isr_setup_status_phase( ci); @@ -1316,7 +1331,7 @@ __acquires(ci->lock) /****************************************************************************** * ENDPT block *****************************************************************************/ -/** +/* * ep_enable: configure endpoint, making it usable * * Check usb_ep_enable() at "usb_gadget.h" for details @@ -1384,7 +1399,7 @@ static int ep_enable(struct usb_ep *ep, return retval; } -/** +/* * ep_disable: endpoint is no longer usable * * Check usb_ep_disable() at "usb_gadget.h" for details @@ -1424,7 +1439,7 @@ static int ep_disable(struct usb_ep *ep) return retval; } -/** +/* * ep_alloc_request: allocate a request object to use with this endpoint * * Check usb_ep_alloc_request() at "usb_gadget.h" for details @@ -1445,7 +1460,7 @@ static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags) return (hwreq == NULL) ? NULL : &hwreq->req; } -/** +/* * ep_free_request: frees a request object * * Check usb_ep_free_request() at "usb_gadget.h" for details @@ -1478,7 +1493,7 @@ static void ep_free_request(struct usb_ep *ep, struct usb_request *req) spin_unlock_irqrestore(hwep->lock, flags); } -/** +/* * ep_queue: queues (submits) an I/O request to an endpoint * * Check usb_ep_queue()* at usb_gadget.h" for details @@ -1503,7 +1518,7 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req, return retval; } -/** +/* * ep_dequeue: dequeues (cancels, unlinks) an I/O request from an endpoint * * Check usb_ep_dequeue() at "usb_gadget.h" for details @@ -1547,7 +1562,7 @@ static int ep_dequeue(struct usb_ep *ep, struct usb_request *req) return 0; } -/** +/* * ep_set_halt: sets the endpoint halt feature * * Check usb_ep_set_halt() at "usb_gadget.h" for details @@ -1557,7 +1572,7 @@ static int ep_set_halt(struct usb_ep *ep, int value) return _ep_set_halt(ep, value, true); } -/** +/* * ep_set_wedge: sets the halt feature and ignores clear requests * * Check usb_ep_set_wedge() at "usb_gadget.h" for details @@ -1577,7 +1592,7 @@ static int ep_set_wedge(struct usb_ep *ep) return usb_ep_set_halt(ep); } -/** +/* * ep_fifo_flush: flushes contents of a fifo * * Check usb_ep_fifo_flush() at "usb_gadget.h" for details @@ -1603,7 +1618,7 @@ static void ep_fifo_flush(struct usb_ep *ep) spin_unlock_irqrestore(hwep->lock, flags); } -/** +/* * Endpoint-specific part of the API to the USB controller hardware * Check "usb_gadget.h" for details */ @@ -1622,7 +1637,7 @@ static const struct usb_ep_ops usb_ep_ops = { /****************************************************************************** * GADGET block *****************************************************************************/ -/** +/* * ci_hdrc_gadget_connect: caller makes sure gadget driver is binded */ static void ci_hdrc_gadget_connect(struct usb_gadget *_gadget, int is_active) @@ -1772,7 +1787,7 @@ static struct usb_ep *ci_udc_match_ep(struct usb_gadget *gadget, return NULL; } -/** +/* * Device operations part of the API to the USB controller hardware, * which don't involve endpoints (or i/o) * Check "usb_gadget.h" for details @@ -1924,7 +1939,7 @@ static void ci_udc_stop_for_otg_fsm(struct ci_hdrc *ci) mutex_unlock(&ci->fsm.lock); } -/** +/* * ci_udc_stop: unregister a gadget driver */ static int ci_udc_stop(struct usb_gadget *gadget) @@ -1955,7 +1970,7 @@ static int ci_udc_stop(struct usb_gadget *gadget) /****************************************************************************** * BUS block *****************************************************************************/ -/** +/* * udc_irq: ci interrupt handler * * This function returns IRQ_HANDLED if the IRQ has been handled @@ -2086,7 +2101,7 @@ free_qh_pool: return retval; } -/** +/* * ci_hdrc_gadget_destroy: parent remove must call this to remove UDC * * No interrupts active, the IRQ has been released @@ -2136,7 +2151,7 @@ static void udc_id_switch_for_host(struct ci_hdrc *ci) /** * ci_hdrc_gadget_init - initialize device related bits - * ci: the controller + * @ci: the controller * * This function initializes the gadget, if the device is "device capable". */ |