udc: Get rid of the unused USB device controller support.
Change-Id: Ia10965135b2af622744970ee213b2f8ee663f9fa
diff --git a/config/rush/defconfig b/config/rush/defconfig
index 2294001..3a0768a 100644
--- a/config/rush/defconfig
+++ b/config/rush/defconfig
@@ -60,6 +60,3 @@
CONFIG_USB_EHCI=y
CONFIG_USB_UHCI=y
CONFIG_USB_XHCI=y
-
-CONFIG_UDC=y
-CONFIG_UDC_CI=y
diff --git a/config/rush_ryu/defconfig b/config/rush_ryu/defconfig
index be8c8e1..00b4955 100644
--- a/config/rush_ryu/defconfig
+++ b/config/rush_ryu/defconfig
@@ -59,6 +59,3 @@
CONFIG_USB_EHCI=y
CONFIG_USB_UHCI=y
CONFIG_USB_XHCI=y
-
-CONFIG_UDC=y
-CONFIG_UDC_CI=y
diff --git a/config/smaug/defconfig b/config/smaug/defconfig
index 375d28a..bdb4c9c 100644
--- a/config/smaug/defconfig
+++ b/config/smaug/defconfig
@@ -58,6 +58,3 @@
CONFIG_USB_EHCI=y
CONFIG_USB_UHCI=y
CONFIG_USB_XHCI=y
-
-CONFIG_UDC=y
-CONFIG_UDC_CI=y
diff --git a/src/libpayload/Kconfig b/src/libpayload/Kconfig
index 49c8990..5a5da24 100644
--- a/src/libpayload/Kconfig
+++ b/src/libpayload/Kconfig
@@ -134,29 +134,6 @@
default y if ARCH_X86
default n
-config UDC
- bool "USB device mode support"
- default n
- help
- Select this option to add support for running as
- a USB device.
-
-config UDC_CI
- bool "ChipIdea driver for USB device mode"
- depends on UDC
- default n
- help
- Select this option to add the driver for ChipIdea
- USB device controller.
-
-config UDC_DWC2
- bool "Designware driver for USB device mode"
- depends on UDC
- default n
- help
- Select this option to add the driver for Designware
- USB device controller.
-
endmenu
menu "Debugging"
diff --git a/src/libpayload/drivers/Makefile.inc b/src/libpayload/drivers/Makefile.inc
index 81f151b..f7c287a 100644
--- a/src/libpayload/drivers/Makefile.inc
+++ b/src/libpayload/drivers/Makefile.inc
@@ -50,7 +50,3 @@
depthcharge-$(CONFIG_USB_XHCI) += usb/xhci_rh.c
depthcharge-$(CONFIG_USB_DWC2) += usb/dwc2.c
depthcharge-$(CONFIG_USB_DWC2) += usb/dwc2_rh.c
-
-# USB device stack
-depthcharge-$(CONFIG_UDC) += udc/udc.c
-depthcharge-$(CONFIG_UDC_CI) += udc/chipidea.c
diff --git a/src/libpayload/drivers/udc/chipidea.c b/src/libpayload/drivers/udc/chipidea.c
deleted file mode 100644
index f10de8f..0000000
--- a/src/libpayload/drivers/udc/chipidea.c
+++ /dev/null
@@ -1,524 +0,0 @@
-/*
- * Copyright (C) 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <arch/cache.h>
-#include <assert.h>
-#include <endian.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <usb/usb.h>
-
-#include <udc/udc.h>
-#include <udc/chipidea.h>
-#include "chipidea_priv.h"
-
-#include "base/die.h"
-#include "base/hexdump.h"
-#include "base/io.h"
-#include "base/time.h"
-
-#ifdef DEBUG
-#define debug(x...) printf(x)
-#else
-#define debug(x...) do {} while (0)
-#endif
-
-#define min(a, b) (((a) < (b)) ? (a) : (b))
-
-static struct qh *get_qh(struct chipidea_pdata *p, int endpoint, int in_dir)
-{
- assert(in_dir <= 1);
- return &p->qhlist[2 * endpoint + in_dir];
-}
-
-static unsigned int ep_to_bits(int ep, int in_dir)
-{
- return ep + (in_dir ? 16 : 0);
-}
-
-static void clear_setup_ep(struct chipidea_pdata *p, int endpoint)
-{
- write32(&p->opreg->epsetupstat, 1 << endpoint);
-}
-
-static void clear_ep(struct chipidea_pdata *p, int endpoint, int in_dir)
-{
- write32(&p->opreg->epcomplete, 1 << ep_to_bits(endpoint, in_dir));
-}
-
-static int chipidea_hw_init(struct usbdev_ctrl *this, void *_opreg,
- const UsbDeviceDescriptor *dd)
-{
- struct chipidea_opreg *opreg = _opreg;
- struct chipidea_pdata *p = CI_PDATA(this);
-
- p->opreg = opreg;
- p->qhlist = dma_memalign(4096, sizeof(struct qh) * CI_QHELEMENTS);
- memcpy(&this->device_descriptor, dd, sizeof(*dd));
-
- if (p->qhlist == NULL)
- die("failed to allocate memory for usb device mode");
-
- memset(p->qhlist, 0, sizeof(struct qh) * CI_QHELEMENTS);
-
- memset(&this->configs, 0, sizeof(this->configs));
-
- int i;
- for (i = 0; i < 16; i++)
- memset(&p->job_queue[i], 0, sizeof(p->job_queue[i]));
-
- for (i = 0; i < CI_QHELEMENTS; i++) {
- p->qhlist[i].config = QH_MPS(512) | QH_NO_AUTO_ZLT | QH_IOS;
- p->qhlist[i].td.next = TD_TERMINATE;
- }
- /* EP0 in/out are hardwired for SETUP */
- p->qhlist[0].config = QH_MPS(64) | QH_NO_AUTO_ZLT | QH_IOS;
- p->qhlist[1].config = QH_MPS(64) | QH_NO_AUTO_ZLT | QH_IOS;
-
- do {
- debug("waiting for usb phy clk valid: %x\n",
- read32(&p->opreg->susp_ctrl));
- mdelay(1);
- } while ((read32(&p->opreg->susp_ctrl) & (1 << 7)) == 0);
-
- write32(&p->opreg->usbcmd, USBCMD_8MICRO | USBCMD_RST);
- mdelay(1);
-
- /* enable device mode */
- write32(&p->opreg->usbmode, 2);
-
- dcache_clean_by_mva(p->qhlist, sizeof(struct qh) * CI_QHELEMENTS);
-
- write32(&p->opreg->epbase, (uintptr_t)p->qhlist);
- write32(&p->opreg->epflush, 0xffffffff);
-
- /* enable EP0 */
- write32(&p->opreg->epctrl[0],
- (1 << 23) | (1 << 22) | (1 << 7) | (1 << 6));
-
- /* clear status register */
- write32(&p->opreg->usbsts, read32(&p->opreg->usbsts));
-
- debug("taking controller out of reset\n");
- write32(&p->opreg->usbcmd, USBCMD_8MICRO | USBCMD_RUN);
-
- this->stall(this, 0, 0, 0);
- this->stall(this, 0, 1, 0);
-
- return 1;
-}
-
-static void chipidea_halt_ep(struct usbdev_ctrl *this, int ep, int in_dir)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- write32(&p->opreg->epflush, 1 << ep_to_bits(ep, in_dir));
- while (read32(&p->opreg->epflush))
- ;
- clrbits_le32(&p->opreg->epctrl[ep], 1 << (7 + (in_dir ? 16 : 0)));
-
- Queue *queue = &p->job_queue[ep][in_dir];
- while (!queue_empty(queue)) {
- struct job *job = container_of(queue_pop(queue), struct job,
- queue_node);
- if (job->autofree)
- free(job->data);
- }
-}
-
-static void chipidea_start_ep(struct usbdev_ctrl *this,
- int ep, int in_dir, int ep_type, int mps)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- struct qh *qh = get_qh(p, ep, in_dir);
- qh->config = (mps << 16) | QH_NO_AUTO_ZLT | QH_IOS;
- dcache_clean_by_mva(qh, sizeof(*qh));
- in_dir = in_dir ? 1 : 0;
- debug("enabling %d-%d (type %d)\n", ep, in_dir, ep_type);
- /* enable endpoint, reset data toggle */
- setbits_le32(&p->opreg->epctrl[ep],
- ((1 << 7) | (1 << 6) | (ep_type << 2)) << (in_dir*16));
- p->ep_busy[ep][in_dir] = 0;
- this->ep_mps[ep][in_dir] = mps;
-}
-
-static void advance_endpoint(struct chipidea_pdata *p, int endpoint, int in_dir)
-{
- if (p->ep_busy[endpoint][in_dir])
- return;
- if (queue_empty(&p->job_queue[endpoint][in_dir]))
- return;
-
- QueueNode *node = queue_peek(&p->job_queue[endpoint][in_dir]);
- struct job *job = container_of(node, struct job, queue_node);
- struct qh *qh = get_qh(p, endpoint, in_dir);
-
- uint32_t start = (uint32_t)(uintptr_t)job->data;
- uint32_t offset = (start & 0xfff);
- /* unlike with typical EHCI controllers,
- * a full TD transfers either 0x5000 bytes if
- * page aligned or 0x4000 bytes if not.
- */
- int maxsize = 0x5000;
- if (offset > 0)
- maxsize = 0x4000;
- uint32_t td_count = (job->length + maxsize - 1) / maxsize;
-
- /* special case for zero length packets */
- if (td_count == 0)
- td_count = 1;
-
- if (job->zlp)
- td_count++;
-
- struct td *tds = dma_memalign(32, sizeof(struct td) * td_count);
- memset(tds, 0, sizeof(struct td) * td_count);
-
- int i;
- int remaining = job->length;
- for (i = 0; i < td_count; i++) {
- int datacount = min(maxsize, remaining);
-
- debug("td %d, %d bytes\n", i, datacount);
- tds[i].next = (uint32_t)(uintptr_t)&tds[i+1];
- tds[i].info = TD_INFO_LEN(datacount) | TD_INFO_ACTIVE;
- tds[i].page0 = start;
- tds[i].page1 = (start & 0xfffff000) + 0x1000;
- tds[i].page2 = (start & 0xfffff000) + 0x2000;
- tds[i].page3 = (start & 0xfffff000) + 0x3000;
- tds[i].page4 = (start & 0xfffff000) + 0x4000;
- remaining -= datacount;
- start = start + datacount;
- }
- tds[td_count - 1].next = TD_TERMINATE;
- tds[td_count - 1].info |= TD_INFO_IOC;
-
- qh->td.next = (uint32_t)(uintptr_t)tds;
- qh->td.info = 0;
-
- job->tds = tds;
- job->td_count = td_count;
-
- dcache_clean_by_mva(tds, sizeof(struct td) * td_count);
- dcache_clean_by_mva(job->data, job->length);
- dcache_clean_by_mva(qh, sizeof(*qh));
-
- debug("priming EP %d-%d with %zx bytes starting at %x (%p)\n", endpoint,
- in_dir, job->length, tds[0].page0, job->data);
- write32(&p->opreg->epprime, 1 << ep_to_bits(endpoint, in_dir));
- while (read32(&p->opreg->epprime))
- ;
- p->ep_busy[endpoint][in_dir] = 1;
-}
-
-static void handle_endpoint(struct usbdev_ctrl *this, int endpoint, int in_dir)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- QueueNode *node = queue_pop(&p->job_queue[endpoint][in_dir]);
- struct job *job = container_of(node, struct job, queue_node);
-
- if (in_dir)
- dcache_invalidate_by_mva(job->data, job->length);
-
- int length = job->length;
-
- int i = 0;
- do {
- int active;
- do {
- dcache_invalidate_by_mva(&job->tds[i],
- sizeof(struct td));
- active = job->tds[i].info & TD_INFO_ACTIVE;
- debug("%d-%d: info %08x, page0 %x, next %x\n",
- endpoint, in_dir, job->tds[i].info,
- job->tds[i].page0, job->tds[i].next);
- } while (active);
- /*
- * The controller writes back the length field in info
- * with the number of bytes it did _not_ process.
- * Hence, take the originally scheduled length and
- * subtract whatever lengths we still find - that gives
- * us the data that the controller did transfer.
- */
- int remaining = job->tds[i].info >> 16;
- length -= remaining;
- } while (job->tds[i++].next != TD_TERMINATE);
- debug("%d-%d: scheduled %zd, now %d bytes\n", endpoint, in_dir,
- job->length, length);
-
- if (this->current_config &&
- this->current_config->interfaces[0].handle_packet)
- this->current_config->interfaces[0].handle_packet(this,
- endpoint, in_dir, job->data, length);
-
- free(job->tds);
- if (job->autofree)
- free(job->data);
- free(job);
- p->ep_busy[endpoint][in_dir] = 0;
-
- advance_endpoint(p, endpoint, in_dir);
-}
-
-static void start_setup(struct usbdev_ctrl *this, int ep)
-{
- UsbDevReq dr;
- struct chipidea_pdata *p = CI_PDATA(this);
- struct qh *qh = get_qh(p, ep, 0);
-
- dcache_invalidate_by_mva(qh, sizeof(*qh));
- memcpy(&dr, qh->setup_data, sizeof(qh->setup_data));
- clear_setup_ep(p, ep);
-
-#ifdef DEBUG
- hexdump((unsigned long)&dr, sizeof(dr));
-#endif
-
- udc_handle_setup(this, ep, &dr);
-}
-
-
-static void chipidea_enqueue_packet(struct usbdev_ctrl *this, int endpoint,
- int in_dir, void *data, int len, int zlp, int autofree)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- struct job *job = malloc(sizeof(*job));
-
- job->data = data;
- job->length = len;
- job->zlp = zlp;
- job->autofree = autofree;
-
- debug("adding job of %d bytes to EP %d-%d\n", len, endpoint, in_dir);
- queue_push(&job->queue_node, &p->job_queue[endpoint][in_dir]);
-
- if ((endpoint == 0) || (this->initialized))
- advance_endpoint(p, endpoint, in_dir);
-}
-
-static int chipidea_poll(struct usbdev_ctrl *this)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- uint32_t sts = read32(&p->opreg->usbsts);
- write32(&p->opreg->usbsts, sts); /* clear */
-
- /* new information if the bus is high speed or not */
- if (sts & USBSTS_PCI) {
- debug("USB speed negotiation: ");
- if ((read32(&p->opreg->devlc) & DEVLC_HOSTSPEED_MASK)
- == DEVLC_HOSTSPEED(2)) {
- debug("high speed\n");
- // TODO: implement
- } else {
- debug("full speed\n");
- // TODO: implement
- }
- }
-
- /* reset requested. stop all activities */
- if (sts & USBSTS_URI) {
- int i;
- debug("USB reset requested\n");
- if (this->initialized) {
- write32(&p->opreg->epstat, read32(&p->opreg->epstat));
- write32(&p->opreg->epsetupstat,
- read32(&p->opreg->epsetupstat));
- write32(&p->opreg->epflush, 0xffffffff);
- for (i = 1; i < 16; i++)
- write32(&p->opreg->epctrl[i], 0);
- this->initialized = 0;
- }
- write32(&p->opreg->epctrl[0], (1 << 22) | (1 << 6));
- p->qhlist[0].config = QH_MPS(64) | QH_NO_AUTO_ZLT | QH_IOS;
- p->qhlist[1].config = QH_MPS(64) | QH_NO_AUTO_ZLT | QH_IOS;
- dcache_clean_by_mva(p->qhlist, 2 * sizeof(struct qh));
- }
-
- if (sts & (USBSTS_UEI | USBSTS_UI)) {
- uint32_t bitmap;
- int ep;
-
- /* This slightly deviates from the recommendation in the
- * data sheets, but the strict ordering is to simplify
- * handling control transfers, which are initialized in
- * the third step with a SETUP packet, then proceed in
- * the next poll loop with in transfers (either data or
- * status phase), then optionally out transfers (status
- * phase).
- */
-
- /* in transfers */
- bitmap = (read32(&p->opreg->epcomplete) >> 16) & 0xffff;
- ep = 0;
- while (bitmap) {
- if (bitmap & 1) {
- debug("incoming packet on EP %d (in)\n", ep);
- handle_endpoint(this, ep, 1);
- clear_ep(p, ep & 0xf, 1);
- }
- bitmap >>= 1;
- ep++;
- }
-
- /* out transfers */
- bitmap = read32(&p->opreg->epcomplete) & 0xffff;
- ep = 0;
- while (bitmap) {
- if (bitmap & 1) {
- debug("incoming packet on EP %d (out)\n", ep);
- handle_endpoint(this, ep, 0);
- clear_ep(p, ep, 0);
- }
- bitmap >>= 1;
- ep++;
- }
-
- /* setup transfers */
- bitmap = read32(&p->opreg->epsetupstat);
- ep = 0;
- while (bitmap) {
- if (bitmap & 1) {
- debug("incoming packet on EP %d (setup)\n", ep);
- start_setup(this, ep);
- }
- bitmap >>= 1;
- ep++;
- }
- }
-
- return 1;
-}
-
-static void chipidea_force_shutdown(struct usbdev_ctrl *this)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- write32(&p->opreg->epflush, 0xffffffff);
- write32(&p->opreg->usbcmd, USBCMD_8MICRO | USBCMD_RST);
- write32(&p->opreg->usbmode, 0);
- write32(&p->opreg->usbcmd, USBCMD_8MICRO);
- free(p->qhlist);
- free(p);
- free(this);
-}
-
-static void chipidea_shutdown(struct usbdev_ctrl *this)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- int i, j;
- int is_empty = 0;
- while (!is_empty) {
- is_empty = 1;
- this->poll(this);
- for (i = 0; i < 16; i++)
- for (j = 0; j < 2; j++)
- if (!queue_empty(&p->job_queue[i][j]))
- is_empty = 0;
- }
- chipidea_force_shutdown(this);
-}
-
-static void chipidea_set_address(struct usbdev_ctrl *this, int address)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- write32(&p->opreg->usbadr, (address << 25) | (1 << 24));
-}
-
-static void chipidea_stall(struct usbdev_ctrl *this,
- uint8_t ep, int in_dir, int set)
-{
- struct chipidea_pdata *p = CI_PDATA(this);
- assert(ep < 16);
- uint32_t *ctrl = &p->opreg->epctrl[ep];
- in_dir = in_dir ? 1 : 0;
- if (set) {
- if (in_dir)
- setbits_le32(ctrl, 1 << 16);
- else
- setbits_le32(ctrl, 1 << 0);
- } else {
- /* reset STALL bit, reset data toggle */
- if (in_dir) {
- setbits_le32(ctrl, 1 << 22);
- clrbits_le32(ctrl, 1 << 16);
- } else {
- setbits_le32(ctrl, 1 << 6);
- clrbits_le32(ctrl, 1 << 0);
- }
- }
- this->ep_halted[ep][in_dir] = set;
-}
-
-static void *chipidea_malloc(size_t size)
-{
- return dma_malloc(size);
-}
-
-static void chipidea_free(void *ptr)
-{
- free(ptr);
-}
-
-struct usbdev_ctrl *chipidea_init(UsbDeviceDescriptor *dd)
-{
- struct usbdev_ctrl *ctrl = calloc(1, sizeof(*ctrl));
- if (ctrl == NULL)
- return NULL;
- ctrl->pdata = calloc(1, sizeof(struct chipidea_pdata));
- if (ctrl->pdata == NULL) {
- free(ctrl);
- return NULL;
- }
-
- ctrl->poll = chipidea_poll;
- ctrl->add_gadget = udc_add_gadget;
- ctrl->add_strings = udc_add_strings;
- ctrl->enqueue_packet = chipidea_enqueue_packet;
- ctrl->force_shutdown = chipidea_force_shutdown;
- ctrl->shutdown = chipidea_shutdown;
- ctrl->set_address = chipidea_set_address;
- ctrl->stall = chipidea_stall;
- ctrl->halt_ep = chipidea_halt_ep;
- ctrl->start_ep = chipidea_start_ep;
- ctrl->alloc_data = chipidea_malloc;
- ctrl->free_data = chipidea_free;
- ctrl->initialized = 0;
-
- int i;
- ctrl->ep_mps[0][0] = 64;
- ctrl->ep_mps[0][1] = 64;
- for (i = 1; i < 16; i++) {
- ctrl->ep_mps[i][0] = 512;
- ctrl->ep_mps[i][1] = 512;
- }
-
- if (!chipidea_hw_init(ctrl, (void *)0x7d000000, dd)) {
- free(ctrl->pdata);
- free(ctrl);
- return NULL;
- }
- return ctrl;
-}
diff --git a/src/libpayload/drivers/udc/chipidea_priv.h b/src/libpayload/drivers/udc/chipidea_priv.h
deleted file mode 100644
index 6b84af4..0000000
--- a/src/libpayload/drivers/udc/chipidea_priv.h
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (C) 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef __CHIPIDEA_PRIV_H__
-#define __CHIPIDEA_PRIV_H__
-
-#include <stdint.h>
-
-#include "base/queue.h"
-
-struct chipidea_opreg {
- uint8_t pad0[0x130];
- uint32_t usbcmd; // 0x130
- uint32_t usbsts; // 0x134
- uint32_t pad138[3];
- uint32_t usbadr; // 0x144
- /* 31:25: address
- * 24: staging: 1 -> commit new address after
- * next ctrl-in on ep0
- */
- uint32_t epbase; // 0x148
- uint32_t pad14c[10];
- uint32_t portsc; // 0x174
- uint32_t pad178[15];
- uint32_t devlc; // 0x1b4
- /* 25:26: host-desired usb version
- * 23: force full speed */
- uint32_t pad1b8[16];
- uint32_t usbmode; // 0x1f8
- /* 0:1: 2 -> device mode */
- uint32_t pad1fc[3];
- uint32_t epsetupstat; // 0x208
- /* 0:15: 1 -> epX received setup packet */
- uint32_t epprime; // 0x20c
- /* 0:15: 1 -> rx buffer for epX (OUT) is primed
- * (ie. ready for controller-side processing)
- * 16:31: 1 -> tx buffer for ep(X-16) (IN/INTR) is primed
- * (ie. ready for controller-side processing)
- *
- * controller will read new td from qh and process it,
- * then set the bit to 0
- */
- uint32_t epflush; // 0x210
- /* 0:31: 1 -> flush buffer (as defined in epprime),
- * so it's uninitialized again.
- * controller resets to 0 when done
- */
- uint32_t epstat; // 0x214
- /* 0:31: 1 -> command in epprime is done, EP is ready
- * (which may be later than epprime reset)
- */
- uint32_t epcomplete; // 0x218
- /* 0:15: 1 -> incoming out/setup packet for epX was handled.
- * software should check QH state
- * 16:31: 1 -> incoming intr/in packet for ep(X-16) was
- * handled. software should check QH state
- */
- uint32_t epctrl[16]; // 0x21c
- /* epctrl[0] is hardcoded as enabled control endpoint.
- * TXS/RXS for stalling can be written.
- *
- * 23: TXE tx endpoint enable
- * 22: TXR reset tx data toggle (for every configuration event)
- * 18:19: 0=ctrl, 1=isoc, 2=bulk, 3=intr endpoint
- * 16: TXS stall tx
- *
- * 7: RXE rx endpoint enable
- * 6: RXR reset rx data toggle (for every configuration event)
- * 2:3: endpoint type (like 18:19)
- * 0: RXS stall rx
- */
- uint32_t pad25c[0x69]; // 0x25c
- uint32_t susp_ctrl; // 0x400
-};
-
-#define CI_PDATA(ctrl) ((struct chipidea_pdata *)((ctrl)->pdata))
-#define CI_QHELEMENTS 32
-
-#define QH_NO_AUTO_ZLT (1 << 29) /* no automatic ZLT handling by chipset */
-#define QH_MPS(x) ((x) << 16)
-#define QH_IOS (1 << 15) /* IRQ on setup */
-
-#define TD_INFO_LEN(x) ((x) << 16)
-#define TD_INFO_IOC (1 << 15)
-#define TD_INFO_ACTIVE (1 << 7)
-#define TD_TERMINATE 1
-
-#define USBCMD_8MICRO (8 << 16)
-#define USBCMD_RST 2
-#define USBCMD_RUN 1
-
-#define USBSTS_SLI (1 << 8)
-#define USBSTS_URI (1 << 6)
-#define USBSTS_PCI (1 << 2)
-#define USBSTS_UEI (1 << 1)
-#define USBSTS_UI (1 << 0)
-
-#define DEVLC_HOSTSPEED(x) (x << 25)
-#define DEVLC_HOSTSPEED_MASK DEVLC_HOSTSPEED(3)
-
-struct td {
- /* points to next td */
- uint32_t next;
- uint32_t info;
- /* page0..4 are like EHCI pages: up to 4k each
- * page0 from addr to page end, page4 to its length
- */
- uint32_t page0;
- uint32_t page1;
- uint32_t page2;
- uint32_t page3;
- uint32_t page4;
- uint32_t res;
-};
-
-struct qh {
- uint32_t config;
- uint32_t current;
- struct td td;
- /* contains the data of a setup request */
- uint8_t setup_data[8];
- uint32_t res[4];
-};
-
-struct job {
- QueueNode queue_node; // linkage
- struct td *tds; // for later free()ing
- int td_count;
- void *data;
- size_t length;
- int zlp; // append zero length packet?
- int autofree; // free after processing?
-};
-
-struct chipidea_pdata {
- struct chipidea_opreg *opreg;
- struct qh *qhlist;
- Queue job_queue[16][2];
- int ep_busy[16][2];
-};
-
-#endif
diff --git a/src/libpayload/drivers/udc/udc.c b/src/libpayload/drivers/udc/udc.c
deleted file mode 100644
index f858452..0000000
--- a/src/libpayload/drivers/udc/udc.c
+++ /dev/null
@@ -1,419 +0,0 @@
-/*
- * Copyright (C) 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <arch/cache.h>
-#include <assert.h>
-#include <endian.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <usb/usb.h>
-
-#include <udc/udc.h>
-
-#include "base/list.h"
-
-#ifdef DEBUG
-#define debug(x...) printf(x)
-#else
-#define debug(x...) do {} while (0)
-#endif
-
-#define min(a, b) (((a) < (b)) ? (a) : (b))
-
-static unsigned short strings_lang_id = 0;
-static unsigned char strings_count = 0;
-static const char **strings;
-
-void udc_add_strings(unsigned short lang_id, unsigned char count,
- const char **str)
-{
- strings_lang_id = lang_id;
- strings_count = count;
- strings = str;
-}
-
-/* determine if an additional zero length packet is necessary for
- * a transfer */
-static unsigned int zlp(struct usbdev_ctrl *this, const int epnum,
- const int len, const int explen)
-{
- const unsigned int mps = this->ep_mps[epnum][1];
-
- /* zero length transfers are handled explicitly */
- if (len == 0)
- return 0;
- /* host expects exactly the right amount, so no zlp necessary */
- if (len == explen)
- return 0;
- /* last packet will be short -> host knows that transfer is over */
- if ((len % mps) != 0)
- return 0;
-
- /* otherwise we need an extra zero length packet */
- return 1;
-}
-
-static struct usbdev_configuration *fetch_config(struct usbdev_ctrl *this,
- int id)
-{
- struct usbdev_configuration *config;
- list_for_each(config, this->configs, list_node) {
- debug("checking descriptor %d\n",
- config->descriptor.bConfigurationValue);
- if (config->descriptor.bConfigurationValue == id)
- return config;
- }
- return NULL;
-}
-
-static void cease_operation(struct usbdev_ctrl *this)
-{
- int i;
- for (i = 1; i < 16; i++) {
- /* disable endpoints */
- this->halt_ep(this, i, 0);
- this->halt_ep(this, i, 1);
- }
-
-}
-
-static void enable_interface(struct usbdev_ctrl *this, int iface_num)
-{
- struct usbdev_configuration *config = this->current_config;
- struct usbdev_interface *iface = &config->interfaces[iface_num];
-
- /* first: shut down all endpoints except EP0 */
- cease_operation(this);
-
- /* now enable all configured endpoints */
- int epcount = iface->descriptor.bNumEndpoints;
- int i;
- for (i = 0; i < epcount; i++) {
- int ep = iface->eps[i].bEndpointAddress;
- int mps = iface->eps[i].wMaxPacketSize;
- int in_dir = 0;
- if (ep & 0x80) {
- in_dir = 1;
- ep &= 0x7f;
- }
- int ep_type = iface->eps[i].bmAttributes & 0x3;
- this->start_ep(this, ep, in_dir, ep_type, mps);
- }
-
- this->current_iface = iface;
-
- // gadget specific configuration
- if (iface->init)
- iface->init(this);
-}
-
-/**
- * handle default control transfers on EP 0
- *
- * returns 1 if transfer was handled
- */
-static int setup_ep0(struct usbdev_ctrl *this, UsbDevReq *dr)
-{
- if ((dr->bmRequestType == 0x00) &&
- (dr->bRequest == UsbReqSetAddress)) {
- this->set_address(this, dr->wValue & 0x7f);
-
- /* status phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, NULL, 0, 0, 0);
- return 1;
- } else
- if ((dr->bmRequestType == 0x00) &&
- (dr->bRequest == UsbReqSetConfiguration)) {
- struct usbdev_configuration *config =
- fetch_config(this, dr->wValue);
-
- if (dr->wValue == 0)
- cease_operation(this);
-
- if (config == NULL) {
- this->stall(this, 0, 0, 1);
- this->stall(this, 0, 1, 1);
- return 1;
- }
-
- /* status phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, NULL, 0, 0, 0);
-
- this->current_config = config;
- this->current_config_id = dr->wValue;
-
- /* activate first interface */
- enable_interface(this, 0);
- this->initialized = 1;
- return 1;
- } else
- if ((dr->bmRequestType == 0x80) &&
- (dr->bRequest == UsbReqGetConfiguration)) {
- unsigned char *res = dma_malloc(1);
- res[0] = this->current_config_id;
-
- /* data phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, res, min(1, dr->wLength),
- 0, 1);
-
- /* status phase UsbDirOut */
- this->enqueue_packet(this, 0, 0, NULL, 0, 0, 0);
- return 1;
- } else
- // UsbEndpointHalt
- if ((dr->bmRequestType == 0x02) && // endpoint
- (dr->bRequest == UsbReqClearFeature) &&
- (dr->wValue == 0)) {
- int ep = dr->wIndex;
- /* clear STALL */
- this->stall(this, ep & 0xf, ep & 0x80, 0);
-
- /* status phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, NULL, 0, 0, 0);
- return 1;
- } else
- // UsbEndpointHalt
- if ((dr->bmRequestType == 0x02) && // endpoint
- (dr->bRequest == UsbReqSetFeature) &&
- (dr->wValue == 0)) {
- int ep = dr->wIndex;
- /* set STALL */
- this->stall(this, ep & 0xf, ep & 0x80, 1);
-
- /* status phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, NULL, 0, 0, 0);
- return 1;
- } else
- // UsbDeviceRemoteWakeup
- if ((dr->bmRequestType == 0x00) &&
- (dr->bRequest == UsbReqClearFeature) &&
- (dr->wValue == 1)) {
- this->remote_wakeup = 0;
-
- /* status phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, NULL, 0, 0, 0);
- return 1;
- } else
- // UsbDeviceRemoteWakeup
- if ((dr->bmRequestType == 0x00) &&
- (dr->bRequest == UsbReqSetFeature) &&
- (dr->wValue == 1)) {
- this->remote_wakeup = 1;
-
- /* status phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, NULL, 0, 0, 0);
- return 1;
- } else
- if ((dr->bmRequestType == 0x82) && // endpoint
- (dr->bRequest == UsbReqGetStatus)) {
- unsigned char *res = dma_malloc(2);
- int ep = dr->wIndex;
- /* is EP halted? */
- res[0] = this->ep_halted[ep & 0xf][(ep & 0x80) ? 1 : 0];
- res[1] = 0;
-
- /* data phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, res,
- min(2, dr->wLength), 0, 1);
-
- // status phase UsbDirOut
- this->enqueue_packet(this, 0, 0, NULL, 0, 0, 0);
- return 1;
- } else
- if ((dr->bmRequestType == 0x80) &&
- (dr->bRequest == UsbReqGetStatus)) {
- unsigned char *res = dma_malloc(2);
- res[0] = 1; // self powered
- if (this->remote_wakeup)
- res[0] |= 2;
-
- res[1] = 0;
-
- /* data phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, res,
- min(2, dr->wLength), 0, 1);
-
- // status phase UsbDirOut
- this->enqueue_packet(this, 0, 0, NULL, 0, 0, 0);
- return 1;
- } else
- if ((dr->bmRequestType == 0x80) &&
- (dr->bRequest == UsbReqGetDescriptor) &&
- ((dr->wValue & 0xff00) == 0x0200)) {
- int i, j;
- /* config descriptor #id
- * since config = 0 is undefined, but descriptors
- * should start at 0, add 1 to have them match up.
- */
- int id = (dr->wValue & 0xff) + 1;
- struct usbdev_configuration *config = fetch_config(this, id);
- if (config == NULL) {
- this->stall(this, 0, 0, 1);
- this->stall(this, 0, 1, 1);
- return 1;
- }
- debug("descriptor found, should be %d bytes\n",
- config->descriptor.wTotalLength);
-
- uint8_t *data = dma_malloc(config->descriptor.wTotalLength);
- uint8_t *head = data;
-
- memcpy(head, &config->descriptor,
- sizeof(UsbConfigurationDescriptor));
- head += sizeof(UsbConfigurationDescriptor);
-
- for (i = 0; i < config->descriptor.bNumInterfaces; i++) {
- memcpy(head, &config->interfaces[i].descriptor,
- sizeof(UsbInterfaceDescriptor));
- head += sizeof(UsbInterfaceDescriptor);
- for (j = 0;
- j < config->interfaces[i].descriptor.bNumEndpoints;
- j++) {
- memcpy(head, &config->interfaces[i].eps[j],
- sizeof(UsbEndpointDescriptor));
- head += sizeof(UsbEndpointDescriptor);
- }
- }
- int size = config->descriptor.wTotalLength;
- assert((head - data) == config->descriptor.wTotalLength);
-
- /* data phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, data,
- min(size, dr->wLength),
- zlp(this, 0, size, dr->wLength), 1);
-
- /* status phase UsbDirOut */
- this->enqueue_packet(this, 0, 0, NULL, 0, 0, 0);
- return 1;
- } else
- if ((dr->bmRequestType == 0x80) &&
- (dr->bRequest == UsbReqGetDescriptor) &&
- ((dr->wValue & 0xff00) == 0x0300)) {
- int id = (dr->wValue & 0xff);
- if (id == 0) {
- if (strings_lang_id == 0)
- return 0;
-
- uint8_t *data = dma_malloc(4);
- data[0] = 0x04; // length
- data[1] = 0x03; // string descriptor
- data[2] = strings_lang_id & 0xff;
- data[3] = strings_lang_id >> 8;
- /* data phase UsbDirIn */
- this->enqueue_packet(this, 0, 1,
- data,
- min(data[0], dr->wLength),
- zlp(this, 0, data[0], dr->wLength),
- 1);
-
- /* status phase UsbDirOut */
- this->enqueue_packet(this, 0, 0, NULL, 0, 0, 0);
- } else {
- if (strings_lang_id == 0)
- return 0;
-
- int lang = dr->wIndex;
- if (lang != strings_lang_id)
- return 0;
-
- if (id > strings_count)
- return 0;
-
- int s_len = strlen(strings[id]);
- int d_len = s_len * 2;
-
- uint8_t *data = dma_malloc(d_len + 2);
- memset(data, 0, d_len + 2);
- data[0] = d_len + 2; // length
- data[1] = 0x03; // string descriptor
- int i;
- for (i = 0; i < s_len; i++)
- data[i * 2 + 2] = strings[id][i];
-
- /* data phase UsbDirIn */
- this->enqueue_packet(this, 0, 1,
- data,
- min(d_len + 2, dr->wLength),
- zlp(this, 0, d_len + 2, dr->wLength),
- 1);
-
- /* status phase UsbDirOut */
- this->enqueue_packet(this, 0, 0, NULL, 0, 0, 0);
- }
- return 1;
- } else
- if ((dr->bmRequestType == 0x80) &&
- (dr->bRequest == UsbReqGetDescriptor) &&
- ((dr->wValue & 0xff00) == 0x0100)) {
- UsbDeviceDescriptor *dd = dma_malloc(sizeof(*dd));
- memcpy(dd, &this->device_descriptor, sizeof(*dd));
- dd->bNumConfigurations = this->config_count;
-
- /* data phase UsbDirIn */
- this->enqueue_packet(this, 0, 1, (void *)dd,
- min(sizeof(*dd), dr->wLength),
- zlp(this, 0, sizeof(*dd), dr->wLength), 1);
-
- /* status phase UsbDirOut */
- this->enqueue_packet(this, 0, 0, NULL, 0, 0, 0);
- return 1;
- }
- return 0;
-}
-
-void udc_add_gadget(struct usbdev_ctrl *this,
- struct usbdev_configuration *config)
-{
- int i, size;
- list_insert_after(&config->list_node, &this->configs);
-
- size = sizeof(UsbConfigurationDescriptor);
-
- for (i = 0; i < config->descriptor.bNumInterfaces; i++) {
- size += sizeof(config->interfaces[i].descriptor);
- size += config->interfaces[i].descriptor.bNumEndpoints *
- sizeof(UsbEndpointDescriptor);
- }
- config->descriptor.wTotalLength = size;
- config->descriptor.bConfigurationValue = ++this->config_count;
-}
-
-void udc_handle_setup(struct usbdev_ctrl *this, int ep, UsbDevReq *dr)
-{
- if ((ep == 0) && setup_ep0(this, dr))
- return;
-
- if (this->current_config &&
- this->current_config->interfaces[0].handle_setup &&
- this->current_config->interfaces[0].handle_setup(this, ep, dr))
- return;
-
- /* no successful SETUP transfer should end up here, report error */
- this->halt_ep(this, ep, 0);
- this->halt_ep(this, ep, 1);
-}
diff --git a/src/libpayload/include/udc/chipidea.h b/src/libpayload/include/udc/chipidea.h
deleted file mode 100644
index 863e200..0000000
--- a/src/libpayload/include/udc/chipidea.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef __CHIPIDEA_H__
-#define __CHIPIDEA_H__
-
-#include "udc.h"
-
-struct usbdev_ctrl *chipidea_init(UsbDeviceDescriptor *dd);
-
-#endif
diff --git a/src/libpayload/include/udc/udc.h b/src/libpayload/include/udc/udc.h
deleted file mode 100644
index f39dac8..0000000
--- a/src/libpayload/include/udc/udc.h
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * Copyright (C) 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef __UDC_H__
-#define __UDC_H__
-
-#include <usb/usb.h>
-
-#include "base/list.h"
-
-struct usbdev_ctrl;
-
-struct usbdev_interface {
- UsbInterfaceDescriptor descriptor;
- void (*init)(struct usbdev_ctrl *);
-
- /**
- * handle_packet: called by the controller driver for incoming packets
- *
- * @param ep endpoint the packet is for
- *
- * @param in_dir 1, if it's an UsbDirIn or INTR transfer.
- * 0 for UsbDirOut, UsbDirSetup is handled in
- * handle_setup
- *
- * @param len Actual transfer length in bytes. Can differ from the
- * scheduled length if the host requested a smaller
- * transfer than we prepared for.
- */
- void (*handle_packet)(struct usbdev_ctrl *, int ep, int in_dir,
- void *data, int len);
-
- /**
- * handle_setup: called by the controller driver for setup packets
- *
- * @param ep endpoint the UsbDirSetup request came up on
- * @param dr UsbDirSetup request data
- */
- int (*handle_setup)(struct usbdev_ctrl *, int ep, UsbDevReq *dr);
- UsbEndpointDescriptor *eps;
-};
-
-struct usbdev_configuration {
- UsbConfigurationDescriptor descriptor;
- ListNode list_node;
- struct usbdev_interface interfaces[];
-};
-
-struct usbdev_ctrl {
- /* private data */
- void *pdata;
-
- int initialized;
- int remote_wakeup;
-
- struct usbdev_configuration *current_config;
- struct usbdev_interface *current_iface;
- int current_config_id;
-
- ListNode configs;
- int config_count;
- UsbDeviceDescriptor device_descriptor;
-
- int ep_halted[16][2];
- int ep_mps[16][2];
-
- /** returns 0 if an error occurred */
- int (*poll)(struct usbdev_ctrl *);
-
- /**
- * Add a gadget driver that exposes properties described in config.
- *
- * Each gadget driver is registered and exposed as separate USB
- * "configuration", so the host can choose between them.
- */
- void (*add_gadget)(struct usbdev_ctrl *,
- struct usbdev_configuration *config);
-
- /**
- * Add a set of strings to use for string descriptors.
- *
- * 's' must point to an array of strings of which the first
- * element is unused, with at most 255 elements.
- *
- * 'm' is the size of 'strings' (ie. the index of the last entry).
- *
- * 'l' is the USB language code, of which some are defined below,
- * eg. LANG_EN_US.
- *
- * For now, only one language is ever exposed: Calling add_strings overwrites
- * older configuration.
- */
- void (*add_strings)(unsigned short l, unsigned char m, const char **s);
-
- /**
- * Add packet to process by the controller.
- * zlp: zero length packet, if such a termination is necessary
- * autofree: free data after use
- */
- void (*enqueue_packet)(struct usbdev_ctrl *this, int endpoint,
- int in_dir, void *data, int len, int zlp, int autofree);
-
- /**
- * Tell the hardware that it should listen to a new address
- */
- void (*set_address)(struct usbdev_ctrl *, int address);
-
- void (*halt_ep)(struct usbdev_ctrl *this, int ep, int in_dir);
- void (*start_ep)(struct usbdev_ctrl *this,
- int ep, int in_dir, int ep_type, int mps);
-
- /**
- * Set or clear endpoint ep's STALL state
- */
- void (*stall)(struct usbdev_ctrl *, uint8_t ep, int in_dir, int set);
-
- /**
- * Disable controller and deallocate data structures.
- */
- void (*force_shutdown)(struct usbdev_ctrl *this);
-
- /**
- * Let queues run out, then disable controller and deallocate data
- * structures.
- */
- void (*shutdown)(struct usbdev_ctrl *this);
-
- /**
- * Allocate n bytes for use as data
- */
- void *(*alloc_data)(size_t n);
- /**
- * Free memory object allocated with alloc_data()
- */
- void (*free_data)(void *);
-};
-
-#define LANG_DE_DE 0x0407
-#define LANG_EN_US 0x0409
-
-void udc_add_gadget(struct usbdev_ctrl *this,
- struct usbdev_configuration *config);
-void udc_add_strings(unsigned short id, unsigned char count,
- const char *strings[]);
-void udc_handle_setup(struct usbdev_ctrl *this, int ep, UsbDevReq *dr);
-
-#endif
