| /openbmc/linux/drivers/usb/gadget/udc/aspeed-vhub/ |
| H A D | ep0.c | 5 * ep0.c - Endpoint 0 handling
31 struct usb_request *req = &ep->ep0.req.req; in ast_vhub_reply()
36 if (WARN_ON(!ep->ep0.dir_in)) in ast_vhub_reply()
92 memcpy_fromio(&crq, ep->ep0.setup, sizeof(crq)); in ast_vhub_ep0_handle_setup()
100 ep->ep0.state); in ast_vhub_ep0_handle_setup()
112 if (ep->ep0.state != ep0_state_token && in ast_vhub_ep0_handle_setup()
113 ep->ep0.state != ep0_state_stall) { in ast_vhub_ep0_handle_setup()
118 /* Calculate next state for EP0 */ in ast_vhub_ep0_handle_setup()
119 ep->ep0.state = ep0_state_data; in ast_vhub_ep0_handle_setup()
120 ep->ep0.dir_in = !!(crq.bRequestType & USB_DIR_IN); in ast_vhub_ep0_handle_setup()
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| H A D | vhub.h | 93 /* HUB EP0 control */
136 * matching corresponding vHub EP0 control bits
215 #define AST_VHUB_EP0_MAX_PACKET 64 /* EP0's max packet size */
243 * mode (or ep0), any >= 0 value means "last packet"
255 /* Current state of an EP0 */
264 * An endpoint, either generic, ep0, actual gadget EP
265 * or internal use vhub EP0. vhub EP1 doesn't have an
274 /* EP index in the device, 0 means this is an EP0 */
277 /* Dev pointer or NULL for vHub EP0 */
284 * DMA buffer for EP0, fallback DMA buffer for misaligned
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| H A D | core.c | 50 * If this isn't an internal EP0 request, call the core in ast_vhub_done()
139 /* Handle top-level vHub EP0 interrupts */ in ast_vhub_irq()
144 ast_vhub_ep0_handle_ack(&vhub->ep0, true); in ast_vhub_irq()
146 ast_vhub_ep0_handle_ack(&vhub->ep0, false); in ast_vhub_irq()
148 ast_vhub_ep0_handle_setup(&vhub->ep0); in ast_vhub_irq()
225 /* Default settings for EP0, enable HW hub EP1 */ in ast_vhub_init_hw()
232 /* Configure EP0 DMA buffer */ in ast_vhub_init_hw()
233 writel(vhub->ep0.buf_dma, vhub->regs + AST_VHUB_EP0_DATA); in ast_vhub_init_hw()
382 dev_err(&pdev->dev, "Failed to allocate EP0 DMA buffers\n"); in ast_vhub_probe()
386 UDCVDBG(vhub, "EP0 DMA buffers @%p (DMA 0x%08x)\n", in ast_vhub_probe()
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| H A D | dev.c | 38 ast_vhub_ep0_handle_ack(&d->ep0, true); in ast_vhub_dev_irq()
40 ast_vhub_ep0_handle_ack(&d->ep0, false); in ast_vhub_dev_irq()
42 ast_vhub_ep0_handle_setup(&d->ep0); in ast_vhub_dev_irq()
52 /* Cleanup EP0 state */ in ast_vhub_dev_enable()
55 /* Enable device and its EP0 interrupts */ in ast_vhub_dev_enable()
70 /* Set EP0 DMA buffer address */ in ast_vhub_dev_enable()
71 writel(d->ep0.buf_dma, d->regs + AST_VHUB_DEV_EP0_DATA); in ast_vhub_dev_enable()
177 return ast_vhub_simple_reply(&d->ep0, st0, 0); in ast_vhub_dev_status()
202 return ast_vhub_simple_reply(&d->ep0, st0, 0); in ast_vhub_ep_status()
391 /* Only EP0 can be a control endpoint */ in ast_vhub_udc_match_ep()
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| /openbmc/linux/drivers/usb/gadget/udc/ |
| H A D | renesas_usbf.c | 75 /* EP0 registers offsets from Base + USBF_BASE_EP0 (EP0 regs area) */
313 /* for EP0 control messages */
344 /* ep0: buf @0x0000 64 bytes, fixed 32 words */
345 [0] = USBF_EP_INFO("ep0-ctrl",
547 static void usbf_ep0_send_null(struct usbf_ep *ep0, bool is_data1) in usbf_ep0_send_null() argument
555 usbf_ep_reg_bitset(ep0, USBF_REG_EP0_CONTROL, set); in usbf_ep0_send_null()
558 static int usbf_ep0_pio_in(struct usbf_ep *ep0, struct usbf_req *req) in usbf_ep0_pio_in() argument
571 dev_dbg(ep0->udc->dev, "ep0 send null\n"); in usbf_ep0_pio_in()
572 usbf_ep0_send_null(ep0, false); in usbf_ep0_pio_in()
576 if ((req->req.actual % ep0->ep.maxpacket) == 0) { in usbf_ep0_pio_in()
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| H A D | udc-xilinx.c | 28 #define XUSB_EP0_CONFIG_OFFSET 0x0000 /* EP0 Config Reg Offset */
202 static const char ep0name[] = "ep0";
261 struct xusb_ep *ep0 = &udc->ep[XUSB_EP_NUMBER_ZERO]; in xudc_wrstatus() local
264 epcfgreg = udc->read_fn(udc->addr + ep0->offset)| in xudc_wrstatus()
266 udc->write_fn(udc->addr, ep0->offset, epcfgreg); in xudc_wrstatus()
267 udc->write_fn(udc->addr, ep0->offset + XUSB_EP_BUF0COUNT_OFFSET, 0); in xudc_wrstatus()
996 * @ep0: pointer to the xusb endpoint 0 structure.
1001 static int __xudc_ep0_queue(struct xusb_ep *ep0, struct xusb_req *req) in __xudc_ep0_queue() argument
1003 struct xusb_udc *udc = ep0->udc; in __xudc_ep0_queue()
1011 if (!list_empty(&ep0->queue)) { in __xudc_ep0_queue()
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| H A D | lpc32xx_udc.c | 76 /* EP0 states */
1027 /* Disable all device interrupts (including EP0) */ in udc_disable()
1073 /* Only enable EP0 in and out for now, EP0 only works in FIFO mode */ in udc_enable()
1199 * as EP0) that don't use DMA. This function should only be called if a packet
1304 * as EP0) that don't use DMA. Note that the endpoint must be selected in the
1330 /* USB device reset - resets USB to a default state with just EP0
1335 /* Re-init device controller and EP0 */ in uda_usb_reset()
1345 /* Send a ZLP on EP0 */
1381 INIT_LIST_HEAD(&udc->gadget.ep0->ep_list); in udc_reinit()
1443 struct lpc32xx_ep *ep0 = &udc->ep[0]; in udc_ep0_in_req() local
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| H A D | bcm63xx_udc.c | 42 static const char bcm63xx_ep0name[] = "ep0";
189 * @ep_num: USB endpoint number. -1 for ep0 RX.
193 * @bep: Pointer to the associated endpoint. NULL for ep0 RX.
203 * ep0 has two IUDMA channels (IUDMA_EP0_RXCHAN and IUDMA_EP0_TXCHAN), as it is
204 * bidirectional. The "struct usb_ep" associated with ep0 is for TX (IN)
274 * @bep: Array of endpoints, including ep0.
279 * @ep0_ctrl_req: Request object for bcm63xx_udc-initiated ep0 transactions.
281 * @ep0state: Current state of the ep0 state machine.
282 * @ep0_wq: Workqueue struct used to wake up the ep0 state machine.
287 * @ep0_req_shutdown: Driver is shutting down; requesting ep0 to halt activity.
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| /openbmc/linux/tools/usb/ffs-aio-example/simple/device_app/ |
| H A D | aio_simple.c | 182 static void handle_ep0(int ep0, bool *ready) in handle_ep0() argument
188 pfds[0].fd = ep0; in handle_ep0()
194 ret = read(ep0, &event, sizeof(event)); in handle_ep0()
196 perror("unable to read event from ep0"); in handle_ep0()
203 write(ep0, NULL, 0); in handle_ep0()
205 read(ep0, NULL, 0); in handle_ep0()
227 int ep0; in main() local
252 sprintf(ep_path, "%s/ep0", argv[1]); in main()
253 ep0 = open(ep_path, O_RDWR); in main()
254 if (ep0 < 0) { in main()
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| /openbmc/linux/tools/usb/ffs-aio-example/multibuff/device_app/ |
| H A D | aio_multibuff.c | 176 static void handle_ep0(int ep0, bool *ready) in handle_ep0() argument
181 ret = read(ep0, &event, sizeof(event)); in handle_ep0()
183 perror("unable to read event from ep0"); in handle_ep0()
190 write(ep0, NULL, 0); in handle_ep0()
192 read(ep0, NULL, 0); in handle_ep0()
240 int ep0, ep1; in main() local
263 sprintf(ep_path, "%s/ep0", argv[1]); in main()
264 ep0 = open(ep_path, O_RDWR); in main()
265 if (ep0 < 0) { in main()
266 perror("unable to open ep0"); in main()
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| /openbmc/linux/drivers/usb/gadget/function/ |
| H A D | u_fs.h | 96 * are refused. All epfiles, except ep0, are deleted so there
102 * ep0 is opened again. In the second case functionfs state will
120 * In this state no open(2), read(2) or write(2) (both on ep0
122 * unlinked and all closed so this is not a problem; ep0 is
123 * also closed but ep0 file exists and so open(2) on ep0 must
134 * there. The next read/write on ep0 will handle the
141 * setup. If this state is set read/write on ep0 return
178 /* how many files are opened (EP0 and others) */
181 /* EP0 state */
187 * happens only in ep0 read which is P: mutex
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| /openbmc/u-boot/drivers/usb/musb/ |
| H A D | musb_udc.c | 43 #include "../gadget/ep0.h"
116 w = readw(&musbr->ep[0].ep0.csr0); in musb_db_regs()
122 b = readb(&musbr->ep[0].ep0.configdata); in musb_db_regs()
209 csr0 = readw(&musbr->ep[0].ep0.csr0); in musb_peri_ep0_stall()
211 writew(csr0, &musbr->ep[0].ep0.csr0); in musb_peri_ep0_stall()
220 csr0 = readw(&musbr->ep[0].ep0.csr0); in musb_peri_ep0_ack_req()
222 writew(csr0, &musbr->ep[0].ep0.csr0); in musb_peri_ep0_ack_req()
229 csr0 = readw(&musbr->ep[0].ep0.csr0); in musb_ep0_tx_ready()
231 writew(csr0, &musbr->ep[0].ep0.csr0); in musb_ep0_tx_ready()
238 csr0 = readw(&musbr->ep[0].ep0.csr0); in musb_ep0_tx_ready_and_last()
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| H A D | musb_core.h | 17 /* EP0 */
110 * ep0 elements are valid when array index is 0
114 struct musb_ep0_regs ep0; member
213 #define MUSB_TYPE_PROTO 0x30 /* Implicitly zero for ep0 */
215 #define MUSB_TYPE_REMOTE_END 0xf /* Implicitly zero for ep0 */
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| /openbmc/linux/drivers/usb/mtu3/ |
| H A D | mtu3_gadget_ep0.c | 3 * mtu3_gadget_ep0.c - MediaTek USB3 DRD peripheral driver ep0 handling
17 /* ep0 is always mtu3->in_eps[0] */
18 #define next_ep0_request(mtu) next_request((mtu)->ep0)
59 mtu3_req_complete(mtu->ep0, req, 0); in ep0_req_giveback()
123 * because the length of test packet is less than max packet of HS ep0, in ep0_load_test_packet()
126 ep0_write_fifo(mtu->ep0, mtu3_test_packet, sizeof(mtu3_test_packet)); in ep0_load_test_packet()
152 dev_dbg(mtu->dev, "ep0: %s STALL, ep0_state: %s\n", in ep0_stall_set()
196 mtu->ep0_req.mep = mtu->ep0; in ep0_set_sel()
200 ret = ep0_queue(mtu->ep0, &mtu->ep0_req); in ep0_set_sel()
265 mtu->ep0_req.mep = mtu->ep0; in ep0_get_status()
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| H A D | mtu3_core.c | 180 /* Clear EP0 and Tx/Rx EPn interrupts status */ in mtu3_intr_status_clear()
307 /* set/clear the stall and toggle bits for non-ep0 */
403 /* for non-ep0 */
505 /* for non-ep0 */
531 * 1. when device IP supports SS, the fifo of EP0, TX EPs, RX EPs
535 * the total fifo size of non-ep0, and ep0's is fixed to 64B,
537 * Due to the first 64B should be reserved for EP0, non-ep0's fifo
582 u32 maxpacket = mtu->g.ep0->maxpacket; in mtu3_ep0_setup()
593 /* Enable EP0 interrupt */ in mtu3_ep0_setup()
614 /* one for ep0, another is reserved */ in mtu3_mem_alloc()
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| /openbmc/linux/include/uapi/linux/usb/ |
| H A D | gadgetfs.h | 5 * Other than ep0 operations, most things are done by read() and write()
8 * i/o requests. When ep0 is configured, the device can enumerate;
10 * ep0 require ioctl() operations.
28 * Events are delivered on the ep0 file descriptor, when the user mode driver
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| /openbmc/linux/drivers/usb/gadget/legacy/ |
| H A D | inode.c | 45 * are two types of files. One type is for the device, implementing ep0.
83 /* /dev/gadget/$CHIP represents ep0 and the whole device */
89 * ep0/device i/o modes and binding to the controller. Driver
95 /* From then on, ep0 fd is in either of two basic modes:
104 /* UNBOUND means the driver closed ep0, so the device won't be
125 /* drivers reading ep0 MUST handle control requests (SETUP)
148 /* except this scratch i/o buffer for ep0 */
237 * at the end of ep0 configuration, or after unbind.
840 /* EP0 IMPLEMENTATION can be partly in userspace.
893 DBG (dev, "ep0 request busy!\n"); in setup_req()
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| /openbmc/linux/drivers/staging/emxx_udc/ |
| H A D | emxx_udc.h | 149 /*------- (0x0028) EP0 Control Register */
168 /*------- (0x002C) EP0 Status Register */
191 /*------- (0x0030) EP0 Interrupt Enable Register */
209 /*------- (0x0034) EP0 Length Register */
212 /*------- (0x0038) EP0 Read Register */
213 /*------- (0x003C) EP0 Write Register */
427 u32 EP0_CONTROL; /* (0x0028) EP0 Control */
428 u32 EP0_STATUS; /* (0x002C) EP0 Status */
429 u32 EP0_INT_ENA; /* (0x0030) EP0 Interrupt Enable */
430 u32 EP0_LENGTH; /* (0x0034) EP0 Length */
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| /openbmc/linux/drivers/usb/gadget/udc/bdc/ |
| H A D | bdc_ep.c | 383 /* Setup the first bd for ep0 transfer */
400 (req_len % bdc->gadget.ep0->maxpacket == 0)) { in setup_first_bd_ep0()
403 bdc->gadget.ep0->maxpacket); in setup_first_bd_ep0()
416 "Unknown ep0 state for queueing bd ep0_state:%s\n", in setup_first_bd_ep0()
455 /* format of first bd for ep0 is different than other */ in setup_bd_list_xfr()
587 /* ep0 memory is not freed, but reused on next connect sr */ in bdc_ep_disable()
617 /* only for ep0: config ep is called for ep0 from connect event */ in bdc_ep_enable()
635 /* EP0 related code */
655 /* Queue xfr on ep0 */
915 /* ep0 is not in this gadget list */ in bdc_free_ep()
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| H A D | bdc_udc.c | 50 /* EP0 initial descripror */
86 bdc->gadget.ep0->maxpacket = EP0_MAX_PKT_SIZE; in bdc_uspc_connected()
98 bdc->gadget.ep0->maxpacket = 64; in bdc_uspc_connected()
104 bdc->gadget.ep0->maxpacket = 64; in bdc_uspc_connected()
110 bdc->gadget.ep0->maxpacket = 8; in bdc_uspc_connected()
118 /* Now we know the speed, configure ep0 */ in bdc_uspc_connected()
122 dev_err(bdc->dev, "EP0 config failed\n"); in bdc_uspc_connected()
135 * Only stop ep0 from here, rest of the endpoints will be disabled in bdc_uspc_disconnected()
556 * Allocate bd list for ep0 only, ep0 will be enabled on connect in bdc_udc_init()
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| /openbmc/linux/drivers/usb/musb/ |
| H A D | musb_regs.h | 113 #define MUSB_TYPE_PROTO 0x30 /* Implicitly zero for ep0 */
115 #define MUSB_TYPE_REMOTE_END 0xf /* Implicitly zero for ep0 */
249 #define MUSB_CSR0 MUSB_TXCSR /* Re-used for EP0 */
253 #define MUSB_COUNT0 MUSB_RXCOUNT /* Re-used for EP0 */
255 #define MUSB_TYPE0 MUSB_TXTYPE /* Re-used for EP0 */
257 #define MUSB_NAKLIMIT0 MUSB_TXINTERVAL /* Re-used for EP0 */
261 #define MUSB_CONFIGDATA MUSB_FIFOSIZE /* Re-used for EP0 */
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| /openbmc/u-boot/drivers/usb/gadget/ |
| H A D | ci_udc.c | 115 .name = "ep0",
568 * The flipping of ep0 between IN and OUT relies on in ci_ep_queue()
577 printf("%s: ep0 transaction already in progress\n", __func__); in ci_ep_queue()
598 DBG("%s: Flipping ep0 to OUT\n", __func__); in flip_ep0_direction()
601 DBG("%s: Flipping ep0 to IN\n", __func__); in flip_ep0_direction()
649 * Data Stage is complete, so flip ep0 dir for Status Stage, in handle_ep_complete()
652 DBG("%s: flip ep0 dir for Status Stage\n", __func__); in handle_ep_complete()
676 head = ci_get_qh(0, 0); /* EP0 OUT */ in handle_setup()
689 /* Set EP0 dir for Data Stage based on Setup Stage data */ in handle_setup()
691 DBG("%s: Set ep0 to IN for Data Stage\n", __func__); in handle_setup()
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| H A D | at91_udc.c | 52 "ep0",
89 /* ep0 is always ready; other endpoints need a non-empty queue */ in done()
483 PACKET("ep0 in/status\n"); in at91_ep_queue()
638 INIT_LIST_HEAD(&udc->gadget.ep0->ep_list); in udc_reinit()
1067 PACKET("ep0 in/status\n"); in handle_setup()
1076 struct at91_ep *ep0 = &udc->ep[0]; in handle_ep0() local
1077 u32 __iomem *creg = ep0->creg; in handle_ep0()
1082 nuke(ep0, -EPROTO); in handle_ep0()
1087 VDBG("ep0 stalled\n"); in handle_ep0()
1091 nuke(ep0, 0); in handle_ep0()
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| /openbmc/u-boot/drivers/usb/musb-new/ |
| H A D | musb_regs.h | 107 #define MUSB_TYPE_PROTO 0x30 /* Implicitly zero for ep0 */
109 #define MUSB_TYPE_REMOTE_END 0xf /* Implicitly zero for ep0 */
253 #define MUSB_CSR0 MUSB_TXCSR /* Re-used for EP0 */
257 #define MUSB_COUNT0 MUSB_RXCOUNT /* Re-used for EP0 */
259 #define MUSB_TYPE0 MUSB_TXTYPE /* Re-used for EP0 */
261 #define MUSB_NAKLIMIT0 MUSB_TXINTERVAL /* Re-used for EP0 */
265 #define MUSB_CONFIGDATA MUSB_FIFOSIZE /* Re-used for EP0 */
277 /* TUSB6010 EP0 configuration register is special */
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| /openbmc/linux/Documentation/usb/ |
| H A D | functionfs.rst | 16 mounted provides an "ep0" file. User space driver need to
30 configuration changes to (say) endpoint 2)). "ep0" is used
65 have been written to their ep0's.
|