* QEMU USB OHCI Emulation
* Copyright (c) 2004 Gianni Tedesco
* Copyright (c) 2006 CodeSourcery
+ * Copyright (c) 2006 Openedhand Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* o BIOS work to boot from USB storage
*/
-#include "vl.h"
+#include "hw.h"
+#include "qemu-timer.h"
+#include "usb.h"
+#include "pci.h"
//#define DEBUG_OHCI
/* Dump packet contents. */
//#define DEBUG_PACKET
+//#define DEBUG_ISOCH
/* This causes frames to occur 1000x slower */
//#define OHCI_TIME_WARP 1
uint32_t ctrl;
} OHCIPort;
+enum ohci_type {
+ OHCI_TYPE_PCI,
+ OHCI_TYPE_PXA
+};
+
typedef struct {
- struct PCIDevice pci_dev;
+ qemu_irq irq;
+ enum ohci_type type;
target_phys_addr_t mem_base;
int mem;
int num_ports;
+ const char *name;
QEMUTimer *eof_timer;
int64_t sof_time;
uint32_t rhdesc_a, rhdesc_b;
uint32_t rhstatus;
OHCIPort rhport[OHCI_MAX_PORTS];
+
+ /* PXA27x Non-OHCI events */
+ uint32_t hstatus;
+ uint32_t hmask;
+ uint32_t hreset;
+ uint32_t htest;
+
+ /* Active packets. */
+ uint32_t old_ctl;
+ USBPacket usb_packet;
+ uint8_t usb_buf[8192];
+ uint32_t async_td;
+ int async_complete;
+
} OHCIState;
/* Host Controller Communications Area */
uint32_t done;
};
+static void ohci_bus_stop(OHCIState *ohci);
+
/* Bitfields for the first word of an Endpoint Desciptor. */
#define OHCI_ED_FA_SHIFT 0
#define OHCI_ED_FA_MASK (0x7f<<OHCI_ED_FA_SHIFT)
#define OHCI_ED_S (1<<13)
#define OHCI_ED_K (1<<14)
#define OHCI_ED_F (1<<15)
-#define OHCI_ED_MPS_SHIFT 7
-#define OHCI_ED_MPS_MASK (0xf<<OHCI_ED_FA_SHIFT)
+#define OHCI_ED_MPS_SHIFT 16
+#define OHCI_ED_MPS_MASK (0x7ff<<OHCI_ED_MPS_SHIFT)
/* Flags in the head field of an Endpoint Desciptor. */
#define OHCI_ED_H 1
#define OHCI_TD_CC_SHIFT 28
#define OHCI_TD_CC_MASK (0xf<<OHCI_TD_CC_SHIFT)
+/* Bitfields for the first word of an Isochronous Transfer Desciptor. */
+/* CC & DI - same as in the General Transfer Desciptor */
+#define OHCI_TD_SF_SHIFT 0
+#define OHCI_TD_SF_MASK (0xffff<<OHCI_TD_SF_SHIFT)
+#define OHCI_TD_FC_SHIFT 24
+#define OHCI_TD_FC_MASK (7<<OHCI_TD_FC_SHIFT)
+
+/* Isochronous Transfer Desciptor - Offset / PacketStatusWord */
+#define OHCI_TD_PSW_CC_SHIFT 12
+#define OHCI_TD_PSW_CC_MASK (0xf<<OHCI_TD_PSW_CC_SHIFT)
+#define OHCI_TD_PSW_SIZE_SHIFT 0
+#define OHCI_TD_PSW_SIZE_MASK (0xfff<<OHCI_TD_PSW_SIZE_SHIFT)
+
+#define OHCI_PAGE_MASK 0xfffff000
+#define OHCI_OFFSET_MASK 0xfff
+
#define OHCI_DPTR_MASK 0xfffffff0
#define OHCI_BM(val, field) \
uint32_t be;
};
+/* Isochronous transfer descriptor */
+struct ohci_iso_td {
+ uint32_t flags;
+ uint32_t bp;
+ uint32_t next;
+ uint32_t be;
+ uint16_t offset[8];
+};
+
#define USB_HZ 12000000
/* OHCI Local stuff */
#define OHCI_CC_BUFFEROVERRUN 0xc
#define OHCI_CC_BUFFERUNDERRUN 0xd
+#define OHCI_HRESET_FSBIR (1 << 0)
+
/* Update IRQ levels */
static inline void ohci_intr_update(OHCIState *ohci)
{
(ohci->intr_status & ohci->intr))
level = 1;
- pci_set_irq(&ohci->pci_dev, 0, level);
+ qemu_set_irq(ohci->irq, level);
}
/* Set an interrupt */
else
port->ctrl &= ~OHCI_PORT_LSDA;
port->port.dev = dev;
+
+ /* notify of remote-wakeup */
+ if ((s->ctl & OHCI_CTL_HCFS) == OHCI_USB_SUSPEND)
+ ohci_set_interrupt(s, OHCI_INTR_RD);
+
/* send the attach message */
- dev->handle_packet(dev,
- USB_MSG_ATTACH, 0, 0, NULL, 0);
+ usb_send_msg(dev, USB_MSG_ATTACH);
dprintf("usb-ohci: Attached port %d\n", port1->index);
} else {
/* set connect status */
dev = port->port.dev;
if (dev) {
/* send the detach message */
- dev->handle_packet(dev,
- USB_MSG_DETACH, 0, 0, NULL, 0);
+ usb_send_msg(dev, USB_MSG_DETACH);
}
port->port.dev = NULL;
dprintf("usb-ohci: Detached port %d\n", port1->index);
}
/* Reset the controller */
-static void ohci_reset(OHCIState *ohci)
+static void ohci_reset(void *opaque)
{
+ OHCIState *ohci = opaque;
OHCIPort *port;
int i;
+ ohci_bus_stop(ohci);
ohci->ctl = 0;
+ ohci->old_ctl = 0;
ohci->status = 0;
ohci->intr_status = 0;
ohci->intr = OHCI_INTR_MIE;
if (port->port.dev)
ohci_attach(&port->port, port->port.dev);
}
- dprintf("usb-ohci: Reset %s\n", ohci->pci_dev.name);
+ if (ohci->async_td) {
+ usb_cancel_packet(&ohci->usb_packet);
+ ohci->async_td = 0;
+ }
+ dprintf("usb-ohci: Reset %s\n", ohci->name);
}
/* Get an array of dwords from main memory */
return 1;
}
+/* Get an array of words from main memory */
+static inline int get_words(uint32_t addr, uint16_t *buf, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
+ cpu_physical_memory_rw(addr, (uint8_t *)buf, sizeof(*buf), 0);
+ *buf = le16_to_cpu(*buf);
+ }
+
+ return 1;
+}
+
+/* Put an array of words in to main memory */
+static inline int put_words(uint32_t addr, uint16_t *buf, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) {
+ uint16_t tmp = cpu_to_le16(*buf);
+ cpu_physical_memory_rw(addr, (uint8_t *)&tmp, sizeof(tmp), 1);
+ }
+
+ return 1;
+}
+
static inline int ohci_read_ed(uint32_t addr, struct ohci_ed *ed)
{
return get_dwords(addr, (uint32_t *)ed, sizeof(*ed) >> 2);
return get_dwords(addr, (uint32_t *)td, sizeof(*td) >> 2);
}
+static inline int ohci_read_iso_td(uint32_t addr, struct ohci_iso_td *td)
+{
+ return (get_dwords(addr, (uint32_t *)td, 4) &&
+ get_words(addr + 16, td->offset, 8));
+}
+
static inline int ohci_put_ed(uint32_t addr, struct ohci_ed *ed)
{
return put_dwords(addr, (uint32_t *)ed, sizeof(*ed) >> 2);
return put_dwords(addr, (uint32_t *)td, sizeof(*td) >> 2);
}
+static inline int ohci_put_iso_td(uint32_t addr, struct ohci_iso_td *td)
+{
+ return (put_dwords(addr, (uint32_t *)td, 4) &&
+ put_words(addr + 16, td->offset, 8));
+}
+
/* Read/Write the contents of a TD from/to main memory. */
static void ohci_copy_td(struct ohci_td *td, uint8_t *buf, int len, int write)
{
cpu_physical_memory_rw(ptr, buf, len - n, write);
}
+/* Read/Write the contents of an ISO TD from/to main memory. */
+static void ohci_copy_iso_td(uint32_t start_addr, uint32_t end_addr,
+ uint8_t *buf, int len, int write)
+{
+ uint32_t ptr;
+ uint32_t n;
+
+ ptr = start_addr;
+ n = 0x1000 - (ptr & 0xfff);
+ if (n > len)
+ n = len;
+ cpu_physical_memory_rw(ptr, buf, n, write);
+ if (n == len)
+ return;
+ ptr = end_addr & ~0xfffu;
+ buf += n;
+ cpu_physical_memory_rw(ptr, buf, len - n, write);
+}
+
+static void ohci_process_lists(OHCIState *ohci, int completion);
+
+static void ohci_async_complete_packet(USBPacket *packet, void *opaque)
+{
+ OHCIState *ohci = opaque;
+#ifdef DEBUG_PACKET
+ dprintf("Async packet complete\n");
+#endif
+ ohci->async_complete = 1;
+ ohci_process_lists(ohci, 1);
+}
+
+#define USUB(a, b) ((int16_t)((uint16_t)(a) - (uint16_t)(b)))
+
+static int ohci_service_iso_td(OHCIState *ohci, struct ohci_ed *ed,
+ int completion)
+{
+ int dir;
+ size_t len = 0;
+ char *str = NULL;
+ int pid;
+ int ret;
+ int i;
+ USBDevice *dev;
+ struct ohci_iso_td iso_td;
+ uint32_t addr;
+ uint16_t starting_frame;
+ int16_t relative_frame_number;
+ int frame_count;
+ uint32_t start_offset, next_offset, end_offset = 0;
+ uint32_t start_addr, end_addr;
+
+ addr = ed->head & OHCI_DPTR_MASK;
+
+ if (!ohci_read_iso_td(addr, &iso_td)) {
+ printf("usb-ohci: ISO_TD read error at %x\n", addr);
+ return 0;
+ }
+
+ starting_frame = OHCI_BM(iso_td.flags, TD_SF);
+ frame_count = OHCI_BM(iso_td.flags, TD_FC);
+ relative_frame_number = USUB(ohci->frame_number, starting_frame);
+
+#ifdef DEBUG_ISOCH
+ printf("--- ISO_TD ED head 0x%.8x tailp 0x%.8x\n"
+ "0x%.8x 0x%.8x 0x%.8x 0x%.8x\n"
+ "0x%.8x 0x%.8x 0x%.8x 0x%.8x\n"
+ "0x%.8x 0x%.8x 0x%.8x 0x%.8x\n"
+ "frame_number 0x%.8x starting_frame 0x%.8x\n"
+ "frame_count 0x%.8x relative %d\n"
+ "di 0x%.8x cc 0x%.8x\n",
+ ed->head & OHCI_DPTR_MASK, ed->tail & OHCI_DPTR_MASK,
+ iso_td.flags, iso_td.bp, iso_td.next, iso_td.be,
+ iso_td.offset[0], iso_td.offset[1], iso_td.offset[2], iso_td.offset[3],
+ iso_td.offset[4], iso_td.offset[5], iso_td.offset[6], iso_td.offset[7],
+ ohci->frame_number, starting_frame,
+ frame_count, relative_frame_number,
+ OHCI_BM(iso_td.flags, TD_DI), OHCI_BM(iso_td.flags, TD_CC));
+#endif
+
+ if (relative_frame_number < 0) {
+ dprintf("usb-ohci: ISO_TD R=%d < 0\n", relative_frame_number);
+ return 1;
+ } else if (relative_frame_number > frame_count) {
+ /* ISO TD expired - retire the TD to the Done Queue and continue with
+ the next ISO TD of the same ED */
+ dprintf("usb-ohci: ISO_TD R=%d > FC=%d\n", relative_frame_number,
+ frame_count);
+ OHCI_SET_BM(iso_td.flags, TD_CC, OHCI_CC_DATAOVERRUN);
+ ed->head &= ~OHCI_DPTR_MASK;
+ ed->head |= (iso_td.next & OHCI_DPTR_MASK);
+ iso_td.next = ohci->done;
+ ohci->done = addr;
+ i = OHCI_BM(iso_td.flags, TD_DI);
+ if (i < ohci->done_count)
+ ohci->done_count = i;
+ ohci_put_iso_td(addr, &iso_td);
+ return 0;
+ }
+
+ dir = OHCI_BM(ed->flags, ED_D);
+ switch (dir) {
+ case OHCI_TD_DIR_IN:
+ str = "in";
+ pid = USB_TOKEN_IN;
+ break;
+ case OHCI_TD_DIR_OUT:
+ str = "out";
+ pid = USB_TOKEN_OUT;
+ break;
+ case OHCI_TD_DIR_SETUP:
+ str = "setup";
+ pid = USB_TOKEN_SETUP;
+ break;
+ default:
+ printf("usb-ohci: Bad direction %d\n", dir);
+ return 1;
+ }
+
+ if (!iso_td.bp || !iso_td.be) {
+ printf("usb-ohci: ISO_TD bp 0x%.8x be 0x%.8x\n", iso_td.bp, iso_td.be);
+ return 1;
+ }
+
+ start_offset = iso_td.offset[relative_frame_number];
+ next_offset = iso_td.offset[relative_frame_number + 1];
+
+ if (!(OHCI_BM(start_offset, TD_PSW_CC) & 0xe) ||
+ ((relative_frame_number < frame_count) &&
+ !(OHCI_BM(next_offset, TD_PSW_CC) & 0xe))) {
+ printf("usb-ohci: ISO_TD cc != not accessed 0x%.8x 0x%.8x\n",
+ start_offset, next_offset);
+ return 1;
+ }
+
+ if ((relative_frame_number < frame_count) && (start_offset > next_offset)) {
+ printf("usb-ohci: ISO_TD start_offset=0x%.8x > next_offset=0x%.8x\n",
+ start_offset, next_offset);
+ return 1;
+ }
+
+ if ((start_offset & 0x1000) == 0) {
+ start_addr = (iso_td.bp & OHCI_PAGE_MASK) |
+ (start_offset & OHCI_OFFSET_MASK);
+ } else {
+ start_addr = (iso_td.be & OHCI_PAGE_MASK) |
+ (start_offset & OHCI_OFFSET_MASK);
+ }
+
+ if (relative_frame_number < frame_count) {
+ end_offset = next_offset - 1;
+ if ((end_offset & 0x1000) == 0) {
+ end_addr = (iso_td.bp & OHCI_PAGE_MASK) |
+ (end_offset & OHCI_OFFSET_MASK);
+ } else {
+ end_addr = (iso_td.be & OHCI_PAGE_MASK) |
+ (end_offset & OHCI_OFFSET_MASK);
+ }
+ } else {
+ /* Last packet in the ISO TD */
+ end_addr = iso_td.be;
+ }
+
+ if ((start_addr & OHCI_PAGE_MASK) != (end_addr & OHCI_PAGE_MASK)) {
+ len = (end_addr & OHCI_OFFSET_MASK) + 0x1001
+ - (start_addr & OHCI_OFFSET_MASK);
+ } else {
+ len = end_addr - start_addr + 1;
+ }
+
+ if (len && dir != OHCI_TD_DIR_IN) {
+ ohci_copy_iso_td(start_addr, end_addr, ohci->usb_buf, len, 0);
+ }
+
+ if (completion) {
+ ret = ohci->usb_packet.len;
+ } else {
+ ret = USB_RET_NODEV;
+ for (i = 0; i < ohci->num_ports; i++) {
+ dev = ohci->rhport[i].port.dev;
+ if ((ohci->rhport[i].ctrl & OHCI_PORT_PES) == 0)
+ continue;
+ ohci->usb_packet.pid = pid;
+ ohci->usb_packet.devaddr = OHCI_BM(ed->flags, ED_FA);
+ ohci->usb_packet.devep = OHCI_BM(ed->flags, ED_EN);
+ ohci->usb_packet.data = ohci->usb_buf;
+ ohci->usb_packet.len = len;
+ ohci->usb_packet.complete_cb = ohci_async_complete_packet;
+ ohci->usb_packet.complete_opaque = ohci;
+ ret = dev->handle_packet(dev, &ohci->usb_packet);
+ if (ret != USB_RET_NODEV)
+ break;
+ }
+
+ if (ret == USB_RET_ASYNC) {
+ return 1;
+ }
+ }
+
+#ifdef DEBUG_ISOCH
+ printf("so 0x%.8x eo 0x%.8x\nsa 0x%.8x ea 0x%.8x\ndir %s len %zu ret %d\n",
+ start_offset, end_offset, start_addr, end_addr, str, len, ret);
+#endif
+
+ /* Writeback */
+ if (dir == OHCI_TD_DIR_IN && ret >= 0 && ret <= len) {
+ /* IN transfer succeeded */
+ ohci_copy_iso_td(start_addr, end_addr, ohci->usb_buf, ret, 1);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
+ OHCI_CC_NOERROR);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, ret);
+ } else if (dir == OHCI_TD_DIR_OUT && ret == len) {
+ /* OUT transfer succeeded */
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
+ OHCI_CC_NOERROR);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE, 0);
+ } else {
+ if (ret > (ssize_t) len) {
+ printf("usb-ohci: DataOverrun %d > %zu\n", ret, len);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
+ OHCI_CC_DATAOVERRUN);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE,
+ len);
+ } else if (ret >= 0) {
+ printf("usb-ohci: DataUnderrun %d\n", ret);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
+ OHCI_CC_DATAUNDERRUN);
+ } else {
+ switch (ret) {
+ case USB_RET_NODEV:
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
+ OHCI_CC_DEVICENOTRESPONDING);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE,
+ 0);
+ break;
+ case USB_RET_NAK:
+ case USB_RET_STALL:
+ printf("usb-ohci: got NAK/STALL %d\n", ret);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
+ OHCI_CC_STALL);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_SIZE,
+ 0);
+ break;
+ default:
+ printf("usb-ohci: Bad device response %d\n", ret);
+ OHCI_SET_BM(iso_td.offset[relative_frame_number], TD_PSW_CC,
+ OHCI_CC_UNDEXPETEDPID);
+ break;
+ }
+ }
+ }
+
+ if (relative_frame_number == frame_count) {
+ /* Last data packet of ISO TD - retire the TD to the Done Queue */
+ OHCI_SET_BM(iso_td.flags, TD_CC, OHCI_CC_NOERROR);
+ ed->head &= ~OHCI_DPTR_MASK;
+ ed->head |= (iso_td.next & OHCI_DPTR_MASK);
+ iso_td.next = ohci->done;
+ ohci->done = addr;
+ i = OHCI_BM(iso_td.flags, TD_DI);
+ if (i < ohci->done_count)
+ ohci->done_count = i;
+ }
+ ohci_put_iso_td(addr, &iso_td);
+ return 1;
+}
+
/* Service a transport descriptor.
Returns nonzero to terminate processing of this endpoint. */
{
int dir;
size_t len = 0;
- uint8_t buf[8192];
char *str = NULL;
int pid;
int ret;
struct ohci_td td;
uint32_t addr;
int flag_r;
+ int completion;
addr = ed->head & OHCI_DPTR_MASK;
+ /* See if this TD has already been submitted to the device. */
+ completion = (addr == ohci->async_td);
+ if (completion && !ohci->async_complete) {
+#ifdef DEBUG_PACKET
+ dprintf("Skipping async TD\n");
+#endif
+ return 1;
+ }
if (!ohci_read_td(addr, &td)) {
fprintf(stderr, "usb-ohci: TD read error at %x\n", addr);
return 0;
len = (td.be - td.cbp) + 1;
}
- if (len && dir != OHCI_TD_DIR_IN) {
- ohci_copy_td(&td, buf, len, 0);
+ if (len && dir != OHCI_TD_DIR_IN && !completion) {
+ ohci_copy_td(&td, ohci->usb_buf, len, 0);
}
}
dprintf(" TD @ 0x%.8x %u bytes %s r=%d cbp=0x%.8x be=0x%.8x\n",
addr, len, str, flag_r, td.cbp, td.be);
- if (len >= 0 && dir != OHCI_TD_DIR_IN) {
+ if (len > 0 && dir != OHCI_TD_DIR_IN) {
dprintf(" data:");
for (i = 0; i < len; i++)
- printf(" %.2x", buf[i]);
+ printf(" %.2x", ohci->usb_buf[i]);
dprintf("\n");
}
#endif
- ret = USB_RET_NODEV;
- for (i = 0; i < ohci->num_ports; i++) {
- dev = ohci->rhport[i].port.dev;
- if ((ohci->rhport[i].ctrl & OHCI_PORT_PES) == 0)
- continue;
-
- ret = dev->handle_packet(dev, pid, OHCI_BM(ed->flags, ED_FA),
- OHCI_BM(ed->flags, ED_EN), buf, len);
- if (ret != USB_RET_NODEV)
- break;
- }
+ if (completion) {
+ ret = ohci->usb_packet.len;
+ ohci->async_td = 0;
+ ohci->async_complete = 0;
+ } else {
+ ret = USB_RET_NODEV;
+ for (i = 0; i < ohci->num_ports; i++) {
+ dev = ohci->rhport[i].port.dev;
+ if ((ohci->rhport[i].ctrl & OHCI_PORT_PES) == 0)
+ continue;
+
+ if (ohci->async_td) {
+ /* ??? The hardware should allow one active packet per
+ endpoint. We only allow one active packet per controller.
+ This should be sufficient as long as devices respond in a
+ timely manner.
+ */
+#ifdef DEBUG_PACKET
+ dprintf("Too many pending packets\n");
+#endif
+ return 1;
+ }
+ ohci->usb_packet.pid = pid;
+ ohci->usb_packet.devaddr = OHCI_BM(ed->flags, ED_FA);
+ ohci->usb_packet.devep = OHCI_BM(ed->flags, ED_EN);
+ ohci->usb_packet.data = ohci->usb_buf;
+ ohci->usb_packet.len = len;
+ ohci->usb_packet.complete_cb = ohci_async_complete_packet;
+ ohci->usb_packet.complete_opaque = ohci;
+ ret = dev->handle_packet(dev, &ohci->usb_packet);
+ if (ret != USB_RET_NODEV)
+ break;
+ }
#ifdef DEBUG_PACKET
- dprintf("ret=%d\n", ret);
+ dprintf("ret=%d\n", ret);
#endif
+ if (ret == USB_RET_ASYNC) {
+ ohci->async_td = addr;
+ return 1;
+ }
+ }
if (ret >= 0) {
if (dir == OHCI_TD_DIR_IN) {
- ohci_copy_td(&td, buf, ret, 1);
+ ohci_copy_td(&td, ohci->usb_buf, ret, 1);
#ifdef DEBUG_PACKET
dprintf(" data:");
for (i = 0; i < ret; i++)
- printf(" %.2x", buf[i]);
+ printf(" %.2x", ohci->usb_buf[i]);
dprintf("\n");
#endif
} else {
}
/* Service an endpoint list. Returns nonzero if active TD were found. */
-static int ohci_service_ed_list(OHCIState *ohci, uint32_t head)
+static int ohci_service_ed_list(OHCIState *ohci, uint32_t head, int completion)
{
struct ohci_ed ed;
uint32_t next_ed;
next_ed = ed.next & OHCI_DPTR_MASK;
- if ((ed.head & OHCI_ED_H) || (ed.flags & OHCI_ED_K))
+ if ((ed.head & OHCI_ED_H) || (ed.flags & OHCI_ED_K)) {
+ uint32_t addr;
+ /* Cancel pending packets for ED that have been paused. */
+ addr = ed.head & OHCI_DPTR_MASK;
+ if (ohci->async_td && addr == ohci->async_td) {
+ usb_cancel_packet(&ohci->usb_packet);
+ ohci->async_td = 0;
+ }
continue;
-
- /* Skip isochronous endpoints. */
- if (ed.flags & OHCI_ED_F)
- continue;
+ }
while ((ed.head & OHCI_DPTR_MASK) != ed.tail) {
#ifdef DEBUG_PACKET
#endif
active = 1;
- if (ohci_service_td(ohci, &ed))
- break;
+ if ((ed.flags & OHCI_ED_F) == 0) {
+ if (ohci_service_td(ohci, &ed))
+ break;
+ } else {
+ /* Handle isochronous endpoints */
+ if (ohci_service_iso_td(ohci, &ed, completion))
+ break;
+ }
}
ohci_put_ed(cur, &ed);
ohci_set_interrupt(ohci, OHCI_INTR_SF);
}
+/* Process Control and Bulk lists. */
+static void ohci_process_lists(OHCIState *ohci, int completion)
+{
+ if ((ohci->ctl & OHCI_CTL_CLE) && (ohci->status & OHCI_STATUS_CLF)) {
+ if (ohci->ctrl_cur && ohci->ctrl_cur != ohci->ctrl_head)
+ dprintf("usb-ohci: head %x, cur %x\n",
+ ohci->ctrl_head, ohci->ctrl_cur);
+ if (!ohci_service_ed_list(ohci, ohci->ctrl_head, completion)) {
+ ohci->ctrl_cur = 0;
+ ohci->status &= ~OHCI_STATUS_CLF;
+ }
+ }
+
+ if ((ohci->ctl & OHCI_CTL_BLE) && (ohci->status & OHCI_STATUS_BLF)) {
+ if (!ohci_service_ed_list(ohci, ohci->bulk_head, completion)) {
+ ohci->bulk_cur = 0;
+ ohci->status &= ~OHCI_STATUS_BLF;
+ }
+ }
+}
+
/* Do frame processing on frame boundary */
static void ohci_frame_boundary(void *opaque)
{
int n;
n = ohci->frame_number & 0x1f;
- ohci_service_ed_list(ohci, le32_to_cpu(hcca.intr[n]));
- }
- if ((ohci->ctl & OHCI_CTL_CLE) && (ohci->status & OHCI_STATUS_CLF)) {
- if (ohci->ctrl_cur && ohci->ctrl_cur != ohci->ctrl_head)
- dprintf("usb-ohci: head %x, cur %x\n", ohci->ctrl_head, ohci->ctrl_cur);
- if (!ohci_service_ed_list(ohci, ohci->ctrl_head)) {
- ohci->ctrl_cur = 0;
- ohci->status &= ~OHCI_STATUS_CLF;
- }
+ ohci_service_ed_list(ohci, le32_to_cpu(hcca.intr[n]), 0);
}
- if ((ohci->ctl & OHCI_CTL_BLE) && (ohci->status & OHCI_STATUS_BLF)) {
- if (!ohci_service_ed_list(ohci, ohci->bulk_head)) {
- ohci->bulk_cur = 0;
- ohci->status &= ~OHCI_STATUS_BLF;
- }
+ /* Cancel all pending packets if either of the lists has been disabled. */
+ if (ohci->async_td &&
+ ohci->old_ctl & (~ohci->ctl) & (OHCI_CTL_BLE | OHCI_CTL_CLE)) {
+ usb_cancel_packet(&ohci->usb_packet);
+ ohci->async_td = 0;
}
+ ohci->old_ctl = ohci->ctl;
+ ohci_process_lists(ohci, 0);
/* Frame boundary, so do EOF stuf here */
ohci->frt = ohci->fit;
ohci);
if (ohci->eof_timer == NULL) {
- fprintf(stderr, "usb-ohci: %s: qemu_new_timer failed\n",
- ohci->pci_dev.name);
+ fprintf(stderr, "usb-ohci: %s: qemu_new_timer failed\n", ohci->name);
/* TODO: Signal unrecoverable error */
return 0;
}
- dprintf("usb-ohci: %s: USB Operational\n", ohci->pci_dev.name);
+ dprintf("usb-ohci: %s: USB Operational\n", ohci->name);
ohci_sof(ohci);
{
if (ohci->eof_timer)
qemu_del_timer(ohci->eof_timer);
+ ohci->eof_timer = NULL;
}
/* Sets a flag in a port status register but only set it if the port is
if (val != ohci->fi) {
dprintf("usb-ohci: %s: FrameInterval = 0x%x (%u)\n",
- ohci->pci_dev.name, ohci->fi, ohci->fi);
+ ohci->name, ohci->fi, ohci->fi);
}
ohci->fi = val;
break;
case OHCI_USB_SUSPEND:
ohci_bus_stop(ohci);
- dprintf("usb-ohci: %s: USB Suspended\n", ohci->pci_dev.name);
+ dprintf("usb-ohci: %s: USB Suspended\n", ohci->name);
break;
case OHCI_USB_RESUME:
- dprintf("usb-ohci: %s: USB Resume\n", ohci->pci_dev.name);
+ dprintf("usb-ohci: %s: USB Resume\n", ohci->name);
break;
case OHCI_USB_RESET:
- dprintf("usb-ohci: %s: USB Reset\n", ohci->pci_dev.name);
+ ohci_reset(ohci);
+ dprintf("usb-ohci: %s: USB Reset\n", ohci->name);
break;
}
}
if (ohci_port_set_if_connected(ohci, portnum, val & OHCI_PORT_PRS)) {
dprintf("usb-ohci: port %d: RESET\n", portnum);
- port->port.dev->handle_packet(port->port.dev, USB_MSG_RESET,
- 0, 0, NULL, 0);
+ usb_send_msg(port->port.dev, USB_MSG_RESET);
port->ctrl &= ~OHCI_PORT_PRS;
/* ??? Should this also set OHCI_PORT_PESC. */
port->ctrl |= OHCI_PORT_PES | OHCI_PORT_PRSC;
case 20: /* HcRhStatus */
return ohci->rhstatus;
+ /* PXA27x specific registers */
+ case 24: /* HcStatus */
+ return ohci->hstatus & ohci->hmask;
+
+ case 25: /* HcHReset */
+ return ohci->hreset;
+
+ case 26: /* HcHInterruptEnable */
+ return ohci->hmask;
+
+ case 27: /* HcHInterruptTest */
+ return ohci->htest;
+
default:
fprintf(stderr, "ohci_read: Bad offset %x\n", (int)addr);
return 0xffffffff;
ohci_set_frame_interval(ohci, val);
break;
+ case 15: /* HcFmNumber */
+ break;
+
case 16: /* HcPeriodicStart */
ohci->pstart = val & 0xffff;
break;
ohci_set_hub_status(ohci, val);
break;
+ /* PXA27x specific registers */
+ case 24: /* HcStatus */
+ ohci->hstatus &= ~(val & ohci->hmask);
+
+ case 25: /* HcHReset */
+ ohci->hreset = val & ~OHCI_HRESET_FSBIR;
+ if (val & OHCI_HRESET_FSBIR)
+ ohci_reset(ohci);
+ break;
+
+ case 26: /* HcHInterruptEnable */
+ ohci->hmask = val;
+ break;
+
+ case 27: /* HcHInterruptTest */
+ ohci->htest = val;
+ break;
+
default:
fprintf(stderr, "ohci_write: Bad offset %x\n", (int)addr);
break;
ohci_mem_write
};
-static void ohci_mapfunc(PCIDevice *pci_dev, int i,
- uint32_t addr, uint32_t size, int type)
-{
- OHCIState *ohci = (OHCIState *)pci_dev;
- ohci->mem_base = addr;
- cpu_register_physical_memory(addr, size, ohci->mem);
-}
-
-void usb_ohci_init(struct PCIBus *bus, int num_ports, int devfn)
+static void usb_ohci_init(OHCIState *ohci, int num_ports, int devfn,
+ qemu_irq irq, enum ohci_type type, const char *name)
{
- OHCIState *ohci;
- int vid = 0x106b;
- int did = 0x003f;
int i;
-
if (usb_frame_time == 0) {
#if OHCI_TIME_WARP
usb_frame_time = ticks_per_sec;
usb_frame_time, usb_bit_time);
}
- ohci = (OHCIState *)pci_register_device(bus, "OHCI USB", sizeof(*ohci),
- devfn, NULL, NULL);
+ ohci->mem = cpu_register_io_memory(0, ohci_readfn, ohci_writefn, ohci);
+ ohci->name = name;
+
+ ohci->irq = irq;
+ ohci->type = type;
+
+ ohci->num_ports = num_ports;
+ for (i = 0; i < num_ports; i++) {
+ qemu_register_usb_port(&ohci->rhport[i].port, ohci, i, ohci_attach);
+ }
+
+ ohci->async_td = 0;
+ qemu_register_reset(ohci_reset, ohci);
+ ohci_reset(ohci);
+}
+
+typedef struct {
+ PCIDevice pci_dev;
+ OHCIState state;
+} OHCIPCIState;
+
+static void ohci_mapfunc(PCIDevice *pci_dev, int i,
+ uint32_t addr, uint32_t size, int type)
+{
+ OHCIPCIState *ohci = (OHCIPCIState *)pci_dev;
+ ohci->state.mem_base = addr;
+ cpu_register_physical_memory(addr, size, ohci->state.mem);
+}
+
+void usb_ohci_init_pci(struct PCIBus *bus, int num_ports, int devfn)
+{
+ OHCIPCIState *ohci;
+ int vid = 0x106b;
+ int did = 0x003f;
+
+ ohci = (OHCIPCIState *)pci_register_device(bus, "OHCI USB", sizeof(*ohci),
+ devfn, NULL, NULL);
if (ohci == NULL) {
fprintf(stderr, "usb-ohci: Failed to register PCI device\n");
return;
ohci->pci_dev.config[0x0b] = 0xc;
ohci->pci_dev.config[0x3d] = 0x01; /* interrupt pin 1 */
- ohci->mem = cpu_register_io_memory(0, ohci_readfn, ohci_writefn, ohci);
+ usb_ohci_init(&ohci->state, num_ports, devfn, ohci->pci_dev.irq[0],
+ OHCI_TYPE_PCI, ohci->pci_dev.name);
pci_register_io_region((struct PCIDevice *)ohci, 0, 256,
PCI_ADDRESS_SPACE_MEM, ohci_mapfunc);
+}
- ohci->num_ports = num_ports;
- for (i = 0; i < num_ports; i++) {
- qemu_register_usb_port(&ohci->rhport[i].port, ohci, i, ohci_attach);
- }
+void usb_ohci_init_pxa(target_phys_addr_t base, int num_ports, int devfn,
+ qemu_irq irq)
+{
+ OHCIState *ohci = (OHCIState *)qemu_mallocz(sizeof(OHCIState));
- ohci_reset(ohci);
+ usb_ohci_init(ohci, num_ports, devfn, irq,
+ OHCI_TYPE_PXA, "OHCI USB");
+ ohci->mem_base = base;
+
+ cpu_register_physical_memory(ohci->mem_base, 0x1000, ohci->mem);
}
projects / qemu / blobdiff