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-rw-r--r--arch_msm7k/hsusb.c453
1 files changed, 0 insertions, 453 deletions
diff --git a/arch_msm7k/hsusb.c b/arch_msm7k/hsusb.c
deleted file mode 100644
index bdcedca..0000000
--- a/arch_msm7k/hsusb.c
+++ /dev/null
@@ -1,453 +0,0 @@
-/*
- * Copyright (c) 2008, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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 <boot/boot.h>
-#include <msm7k/hsusb.h>
-#include <boot/usb.h>
-#include <boot/usb_descriptors.h>
-
-#if 1
-#define DBG(x...) do {} while(0)
-#else
-#define DBG(x...) dprintf(x)
-#endif
-
-struct usb_endpoint
-{
- struct usb_endpoint *next;
- unsigned bit;
- struct ept_queue_head *head;
- struct usb_request *req;
- unsigned char num;
- unsigned char in;
-};
-
-struct usb_endpoint *ept_list = 0;
-struct ept_queue_head *epts = 0;
-
-static int usb_online = 0;
-static int usb_highspeed = 0;
-
-struct usb_endpoint *usb_endpoint_alloc(unsigned num, unsigned in, unsigned max_pkt)
-{
- struct usb_endpoint *ept;
- unsigned cfg;
-
- ept = alloc(sizeof(*ept));
-
- ept->num = num;
- ept->in = !!in;
- ept->req = 0;
-
- cfg = CONFIG_MAX_PKT(max_pkt) | CONFIG_ZLT;
-
- if(ept->in) {
- ept->bit = EPT_TX(ept->num);
- } else {
- ept->bit = EPT_RX(ept->num);
- if(num == 0)
- cfg |= CONFIG_IOS;
- }
-
- ept->head = epts + (num * 2) + (ept->in);
- ept->head->config = cfg;
-
- ept->next = ept_list;
- ept_list = ept;
-
- DBG("ept%d %s @%p/%p max=%d bit=%x\n",
- num, in ? "in":"out", ept, ept->head, max_pkt, ept->bit);
-
- return ept;
-}
-
-static void endpoint_enable(struct usb_endpoint *ept, unsigned yes)
-{
- unsigned n = readl(USB_ENDPTCTRL(ept->num));
-
- if(yes) {
- if(ept->in) {
- n |= (CTRL_TXE | CTRL_TXR | CTRL_TXT_BULK);
- } else {
- n |= (CTRL_RXE | CTRL_RXR | CTRL_RXT_BULK);
- }
-
- if(ept->num != 0) {
- /* XXX should be more dynamic... */
- if(usb_highspeed) {
- ept->head->config = CONFIG_MAX_PKT(512) | CONFIG_ZLT;
- } else {
- ept->head->config = CONFIG_MAX_PKT(64) | CONFIG_ZLT;
- }
- }
- }
- writel(n, USB_ENDPTCTRL(ept->num));
-}
-
-struct usb_request *usb_request_alloc(unsigned bufsiz)
-{
- struct usb_request *req;
- req = alloc(sizeof(*req));
- req->buf = alloc(bufsiz);
- req->item = alloc(32);
- return req;
-}
-
-int usb_queue_req(struct usb_endpoint *ept, struct usb_request *req)
-{
- struct ept_queue_item *item = req->item;
- unsigned phys = (unsigned) req->buf;
-
- item->next = TERMINATE;
- item->info = INFO_BYTES(req->length) | INFO_IOC | INFO_ACTIVE;
- item->page0 = phys;
- item->page1 = (phys & 0xfffff000) + 0x1000;
-
- ept->head->next = (unsigned) item;
- ept->head->info = 0;
- ept->req = req;
-
- DBG("ept%d %s queue req=%p\n",
- ept->num, ept->in ? "in" : "out", req);
-
- writel(ept->bit, USB_ENDPTPRIME);
- return 0;
-}
-
-static void handle_ept_complete(struct usb_endpoint *ept)
-{
- struct ept_queue_item *item;
- unsigned actual;
- int status;
- struct usb_request *req;
-
- DBG("ept%d %s complete req=%p\n",
- ept->num, ept->in ? "in" : "out", ept->req);
-
- req = ept->req;
- if(req) {
- ept->req = 0;
-
- item = req->item;
-
- if(item->info & 0xff) {
- actual = 0;
- status = -1;
- dprintf("EP%d/%s FAIL nfo=%x pg0=%x\n",
- ept->num, ept->in ? "in" : "out", item->info, item->page0);
- } else {
- actual = req->length - ((item->info >> 16) & 0x7fff);
- status = 0;
- }
- if(req->complete)
- req->complete(req, actual, status);
- }
-}
-
-static const char *reqname(unsigned r)
-{
- switch(r) {
- case GET_STATUS: return "GET_STATUS";
- case CLEAR_FEATURE: return "CLEAR_FEATURE";
- case SET_FEATURE: return "SET_FEATURE";
- case SET_ADDRESS: return "SET_ADDRESS";
- case GET_DESCRIPTOR: return "GET_DESCRIPTOR";
- case SET_DESCRIPTOR: return "SET_DESCRIPTOR";
- case GET_CONFIGURATION: return "GET_CONFIGURATION";
- case SET_CONFIGURATION: return "SET_CONFIGURATION";
- case GET_INTERFACE: return "GET_INTERFACE";
- case SET_INTERFACE: return "SET_INTERFACE";
- default: return "*UNKNOWN*";
- }
-}
-
-static struct usb_endpoint *ep0in, *ep0out;
-static struct usb_request *ep0req;
-
-static void setup_ack(void)
-{
- ep0req->complete = 0;
- ep0req->length = 0;
- usb_queue_req(ep0in, ep0req);
-}
-
-static void ep0in_complete(struct usb_request *req, unsigned actual, int status)
-{
- DBG("ep0in_complete %p %d %d\n", req, actual, status);
- if(status == 0) {
- req->length = 0;
- req->complete = 0;
- usb_queue_req(ep0out, req);
- }
-}
-
-static void setup_tx(void *buf, unsigned len)
-{
- DBG("setup_tx %p %d\n", buf, len);
- memcpy(ep0req->buf, buf, len);
- ep0req->complete = ep0in_complete;
- ep0req->length = len;
- usb_queue_req(ep0in, ep0req);
-}
-
-static unsigned char usb_config_value = 0;
-
-#define SETUP(type,request) (((type) << 8) | (request))
-
-static void handle_setup(struct usb_endpoint *ept)
-{
- setup_packet s;
-
- memcpy(&s, ept->head->setup_data, sizeof(s));
- writel(ept->bit, USB_ENDPTSETUPSTAT);
-
- DBG("handle_setup type=0x%b req=0x%b val=%d idx=%d len=%d (%s)\n",
- s.type, s.request, s.value, s.index, s.length,
- reqname(s.request));
-
- switch(SETUP(s.type,s.request)) {
- case SETUP(DEVICE_READ, GET_STATUS): {
- unsigned zero = 0;
- if(s.length == 2) {
- setup_tx(&zero, 2);
- return;
- }
- break;
- }
- case SETUP(DEVICE_READ, GET_DESCRIPTOR): {
- dtable *d = usb_highspeed ? descr_hs : descr_fs;
- while(d->data) {
- if(s.value == d->id) {
- unsigned len = d->length;
- if(len > s.length) len = s.length;
- setup_tx(d->data, len);
- return;
- }
- d++;
- }
- break;
- }
- case SETUP(DEVICE_READ, GET_CONFIGURATION):
- /* disabling this causes data transaction failures on OSX. Why?
- */
- if((s.value == 0) && (s.index == 0) && (s.length == 1)) {
- setup_tx(&usb_config_value, 1);
- return;
- }
- break;
- case SETUP(DEVICE_WRITE, SET_CONFIGURATION):
- if(s.value == 1) {
- struct usb_endpoint *ept;
- /* enable endpoints */
- for(ept = ept_list; ept; ept = ept->next){
- if(ept->num == 0)
- continue;
- endpoint_enable(ept, s.value);
- }
- usb_config_value = 1;
- } else {
- writel(0, USB_ENDPTCTRL(1));
- usb_config_value = 0;
- }
- setup_ack();
- usb_online = s.value ? 1 : 0;
- usb_status(s.value ? 1 : 0, usb_highspeed);
- return;
- case SETUP(DEVICE_WRITE, SET_ADDRESS):
- /* write address delayed (will take effect
- ** after the next IN txn)
- */
- writel((s.value << 25) | (1 << 24), USB_DEVICEADDR);
- setup_ack();
- return;
- case SETUP(INTERFACE_WRITE, SET_INTERFACE):
- /* if we ack this everything hangs */
- /* per spec, STALL is valid if there is not alt func */
- goto stall;
- case SETUP(ENDPOINT_WRITE, CLEAR_FEATURE): {
- struct usb_endpoint *ept;
- unsigned num = s.index & 15;
- unsigned in = !!(s.index & 0x80);
-
- if((s.value == 0) && (s.length == 0)) {
- DBG("clr feat %d %d\n", num, in);
- for(ept = ept_list; ept; ept = ept->next) {
- if((ept->num == num) && (ept->in == in)) {
- endpoint_enable(ept, 1);
- setup_ack();
- return;
- }
- }
- }
- break;
- }
- }
-
- dprintf("STALL %s %b %b %d %d %d\n",
- reqname(s.request),
- s.type, s.request, s.value, s.index, s.length);
-
-stall:
- writel((1<<16) | (1 << 0), USB_ENDPTCTRL(ept->num));
-}
-
-unsigned ulpi_read(unsigned reg)
-{
- /* initiate read operation */
- writel(ULPI_RUN | ULPI_READ | ULPI_ADDR(reg),
- USB_ULPI_VIEWPORT);
-
- /* wait for completion */
- while(readl(USB_ULPI_VIEWPORT) & ULPI_RUN) ;
-
- return ULPI_DATA_READ(readl(USB_ULPI_VIEWPORT));
-}
-
-void ulpi_write(unsigned val, unsigned reg)
-{
- /* initiate write operation */
- writel(ULPI_RUN | ULPI_WRITE |
- ULPI_ADDR(reg) | ULPI_DATA(val),
- USB_ULPI_VIEWPORT);
-
- /* wait for completion */
- while(readl(USB_ULPI_VIEWPORT) & ULPI_RUN) ;
-}
-
-void board_usb_init(void);
-void board_ulpi_init(void);
-
-void usb_init(void)
-{
- epts = alloc_page_aligned(4096);
-
- memset(epts, 0, 32 * sizeof(struct ept_queue_head));
-
- board_usb_init();
-
- /* select ULPI phy */
- writel(0x81000000, USB_PORTSC);
-
- /* RESET */
- writel(0x00080002, USB_USBCMD);
- mdelay(20);
-
- board_ulpi_init();
-
- writel((unsigned) epts, USB_ENDPOINTLISTADDR);
-
- /* select DEVICE mode */
- writel(0x02, USB_USBMODE);
-
- writel(0xffffffff, USB_ENDPTFLUSH);
-
- /* go to RUN mode (D+ pullup enable) */
- writel(0x00080001, USB_USBCMD);
-
-
- ep0out = usb_endpoint_alloc(0, 0, 64);
- ep0in = usb_endpoint_alloc(0, 1, 64);
- ep0req = usb_request_alloc(4096);
-}
-
-void usb_shutdown(void)
-{
- /* disable pullup */
- writel(0x0008000, USB_USBCMD);
- mdelay(10);
-}
-
-void usb_poll(void)
-{
- struct usb_endpoint *ept;
- unsigned n = readl(USB_USBSTS);
- writel(n, USB_USBSTS);
-
- n &= (STS_SLI | STS_URI | STS_PCI | STS_UI | STS_UEI);
-
- if(n == 0) return;
-
- if(n & STS_URI) {
- writel(readl(USB_ENDPTCOMPLETE), USB_ENDPTCOMPLETE);
- writel(readl(USB_ENDPTSETUPSTAT), USB_ENDPTSETUPSTAT);
- writel(0xffffffff, USB_ENDPTFLUSH);
- writel(0, USB_ENDPTCTRL(1));
- DBG("-- reset --\n");
- usb_online = 0;
- usb_config_value = 0;
-
- /* error out any pending reqs */
- for(ept = ept_list; ept; ept = ept->next) {
- ept->head->info = INFO_ACTIVE;
- handle_ept_complete(ept);
- }
- usb_status(0, usb_highspeed);
- }
- if(n & STS_SLI) {
- DBG("-- suspend --\n");
- }
- if(n & STS_PCI) {
- DBG("-- portchange --\n");
- unsigned spd = (readl(USB_PORTSC) >> 26) & 3;
- if(spd == 2) {
- usb_highspeed = 1;
- } else {
- usb_highspeed = 0;
- }
- }
- if(n & STS_UEI) dprintf("<UEI %x>\n", readl(USB_ENDPTCOMPLETE));
-#if 0
- DBG("STS: ");
- if(n & STS_UEI) DBG("ERROR ");
- if(n & STS_SLI) DBG("SUSPEND ");
- if(n & STS_URI) DBG("RESET ");
- if(n & STS_PCI) DBG("PORTCHANGE ");
- if(n & STS_UI) DBG("USB ");
- DBG("\n");
-#endif
- if((n & STS_UI) || (n & STS_UEI)) {
- n = readl(USB_ENDPTSETUPSTAT);
- if(n & EPT_RX(0)) {
- handle_setup(ep0out);
- }
-
- n = readl(USB_ENDPTCOMPLETE);
- if(n != 0) {
- writel(n, USB_ENDPTCOMPLETE);
- }
-
- for(ept = ept_list; ept; ept = ept->next){
- if(n & ept->bit) {
- handle_ept_complete(ept);
- }
- }
- }
-// dprintf("@\n");
-}
-
-
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