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-rw-r--r--Changelog1
-rw-r--r--Makefile.target2
-rw-r--r--hw/pc.c22
-rw-r--r--hw/usb-uhci.c672
-rw-r--r--hw/usb.c694
-rw-r--r--hw/usb.h139
-rw-r--r--usb-linux.c309
-rw-r--r--vl.c6
-rw-r--r--vl.h3
9 files changed, 1847 insertions, 1 deletions
diff --git a/Changelog b/Changelog
index 56efe3cc8d..6aff1395d0 100644
--- a/Changelog
+++ b/Changelog
@@ -6,6 +6,7 @@ version 0.7.3:
- ALSA audio driver (malc)
- new audio options: '-soundhw' and '-audio-help' (malc)
- ES1370 PCI audio device (malc)
+ - Initial USB support
version 0.7.2:
diff --git a/Makefile.target b/Makefile.target
index b1773f4ddb..56b7036a5d 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -294,7 +294,7 @@ ifeq ($(TARGET_BASE_ARCH), i386)
# Hardware support
VL_OBJS+= ide.o ne2000.o pckbd.o vga.o $(SOUND_HW) dma.o $(AUDIODRV)
VL_OBJS+= fdc.o mc146818rtc.o serial.o i8259.o i8254.o pc.o
-VL_OBJS+= cirrus_vga.o mixeng.o apic.o parallel.o
+VL_OBJS+= cirrus_vga.o mixeng.o apic.o parallel.o usb.o usb-uhci.o usb-linux.o
DEFINES += -DHAS_AUDIO
endif
ifeq ($(TARGET_BASE_ARCH), ppc)
diff --git a/hw/pc.c b/hw/pc.c
index ad3d5e032b..cd28998e1e 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -620,6 +620,28 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device,
cmos_init(ram_size, boot_device, bs_table);
+ if (pci_enabled && usb_enabled) {
+ USBPort *usb_root_ports[2];
+ USBDevice *usb_hub;
+ usb_uhci_init(pci_bus, usb_root_ports);
+#if 0
+ {
+ USBPort *usb_hub1_ports[4];
+ USBPort *usb_hub2_ports[2];
+ /* test: we simulate a USB hub */
+ usb_hub = usb_hub_init(usb_hub1_ports, 4);
+ usb_attach(usb_root_ports[0], usb_hub);
+
+ /* test: we simulate a USB hub */
+ usb_hub = usb_hub_init(usb_hub2_ports, 2);
+ usb_attach(usb_hub1_ports[0], usb_hub);
+ }
+#endif
+ /* simulated hub with the host USB devices connected to it */
+ usb_hub = usb_host_hub_init();
+ usb_attach(usb_root_ports[0], usb_hub);
+ }
+
/* must be done after all PCI devices are instanciated */
/* XXX: should be done in the Bochs BIOS */
if (pci_enabled) {
diff --git a/hw/usb-uhci.c b/hw/usb-uhci.c
new file mode 100644
index 0000000000..42417fedae
--- /dev/null
+++ b/hw/usb-uhci.c
@@ -0,0 +1,672 @@
+/*
+ * USB UHCI controller emulation
+ *
+ * Copyright (c) 2005 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "vl.h"
+
+//#define DEBUG
+//#define DEBUG_PACKET
+
+#define UHCI_CMD_GRESET (1 << 2)
+#define UHCI_CMD_HCRESET (1 << 1)
+#define UHCI_CMD_RS (1 << 0)
+
+#define UHCI_STS_HCHALTED (1 << 5)
+#define UHCI_STS_HCPERR (1 << 4)
+#define UHCI_STS_HSERR (1 << 3)
+#define UHCI_STS_RD (1 << 2)
+#define UHCI_STS_USBERR (1 << 1)
+#define UHCI_STS_USBINT (1 << 0)
+
+#define TD_CTRL_SPD (1 << 29)
+#define TD_CTRL_ERROR_SHIFT 27
+#define TD_CTRL_IOS (1 << 25)
+#define TD_CTRL_IOC (1 << 24)
+#define TD_CTRL_ACTIVE (1 << 23)
+#define TD_CTRL_STALL (1 << 22)
+#define TD_CTRL_BABBLE (1 << 20)
+#define TD_CTRL_NAK (1 << 19)
+#define TD_CTRL_TIMEOUT (1 << 18)
+
+#define UHCI_PORT_RESET (1 << 9)
+#define UHCI_PORT_LSDA (1 << 8)
+#define UHCI_PORT_ENC (1 << 3)
+#define UHCI_PORT_EN (1 << 2)
+#define UHCI_PORT_CSC (1 << 1)
+#define UHCI_PORT_CCS (1 << 0)
+
+#define FRAME_TIMER_FREQ 1000
+
+#define FRAME_MAX_LOOPS 100
+
+#define NB_PORTS 2
+
+typedef struct UHCIPort {
+ USBPort port;
+ uint16_t ctrl;
+ USBDevice *dev; /* connected device */
+} UHCIPort;
+
+typedef struct UHCIState {
+ PCIDevice dev;
+ uint16_t cmd; /* cmd register */
+ uint16_t status;
+ uint16_t intr; /* interrupt enable register */
+ uint16_t frnum; /* frame number */
+ uint32_t fl_base_addr; /* frame list base address */
+ uint8_t sof_timing;
+ uint8_t status2; /* bit 0 and 1 are used to generate UHCI_STS_USBINT */
+ QEMUTimer *frame_timer;
+ UHCIPort ports[NB_PORTS];
+} UHCIState;
+
+typedef struct UHCI_TD {
+ uint32_t link;
+ uint32_t ctrl; /* see TD_CTRL_xxx */
+ uint32_t token;
+ uint32_t buffer;
+} UHCI_TD;
+
+typedef struct UHCI_QH {
+ uint32_t link;
+ uint32_t el_link;
+} UHCI_QH;
+
+static void uhci_attach(USBPort *port1, USBDevice *dev);
+
+static void uhci_update_irq(UHCIState *s)
+{
+ int level;
+ if (((s->status2 & 1) && (s->intr & (1 << 2))) ||
+ ((s->status2 & 2) && (s->intr & (1 << 3))) ||
+ ((s->status & UHCI_STS_USBERR) && (s->intr & (1 << 0))) ||
+ ((s->status & UHCI_STS_RD) && (s->intr & (1 << 1))) ||
+ (s->status & UHCI_STS_HSERR) ||
+ (s->status & UHCI_STS_HCPERR)) {
+ level = 1;
+ } else {
+ level = 0;
+ }
+ pci_set_irq(&s->dev, 0, level);
+}
+
+static void uhci_reset(UHCIState *s)
+{
+ uint8_t *pci_conf;
+ int i;
+ UHCIPort *port;
+
+ pci_conf = s->dev.config;
+
+ pci_conf[0x6a] = 0x01; /* usb clock */
+ pci_conf[0x6b] = 0x00;
+ s->cmd = 0;
+ s->status = 0;
+ s->status2 = 0;
+ s->intr = 0;
+ s->fl_base_addr = 0;
+ s->sof_timing = 64;
+ for(i = 0; i < NB_PORTS; i++) {
+ port = &s->ports[i];
+ port->ctrl = 0x0080;
+ if (port->dev)
+ uhci_attach(&port->port, port->dev);
+ }
+}
+
+static void uhci_ioport_writeb(void *opaque, uint32_t addr, uint32_t val)
+{
+ UHCIState *s = opaque;
+
+ addr &= 0x1f;
+ switch(addr) {
+ case 0x0c:
+ s->sof_timing = val;
+ break;
+ }
+}
+
+static uint32_t uhci_ioport_readb(void *opaque, uint32_t addr)
+{
+ UHCIState *s = opaque;
+ uint32_t val;
+
+ addr &= 0x1f;
+ switch(addr) {
+ case 0x0c:
+ val = s->sof_timing;
+ default:
+ val = 0xff;
+ break;
+ }
+ return val;
+}
+
+static void uhci_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
+{
+ UHCIState *s = opaque;
+
+ addr &= 0x1f;
+#ifdef DEBUG
+ printf("uhci writew port=0x%04x val=0x%04x\n", addr, val);
+#endif
+ switch(addr) {
+ case 0x00:
+ if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) {
+ /* start frame processing */
+ qemu_mod_timer(s->frame_timer, qemu_get_clock(vm_clock));
+ }
+ if (val & UHCI_CMD_GRESET) {
+ UHCIPort *port;
+ USBDevice *dev;
+ int i;
+
+ /* send reset on the USB bus */
+ for(i = 0; i < NB_PORTS; i++) {
+ port = &s->ports[i];
+ dev = port->dev;
+ if (dev) {
+ dev->handle_packet(dev,
+ USB_MSG_RESET, 0, 0, NULL, 0);
+ }
+ }
+ uhci_reset(s);
+ return;
+ }
+ if (val & UHCI_CMD_GRESET) {
+ uhci_reset(s);
+ return;
+ }
+ s->cmd = val;
+ break;
+ case 0x02:
+ s->status &= ~val;
+ /* XXX: the chip spec is not coherent, so we add a hidden
+ register to distinguish between IOC and SPD */
+ if (val & UHCI_STS_USBINT)
+ s->status2 = 0;
+ uhci_update_irq(s);
+ break;
+ case 0x04:
+ s->intr = val;
+ uhci_update_irq(s);
+ break;
+ case 0x06:
+ if (s->status & UHCI_STS_HCHALTED)
+ s->frnum = val & 0x7ff;
+ break;
+ case 0x10 ... 0x1f:
+ {
+ UHCIPort *port;
+ USBDevice *dev;
+ int n;
+
+ n = (addr >> 1) & 7;
+ if (n >= NB_PORTS)
+ return;
+ port = &s->ports[n];
+ dev = port->dev;
+ if (dev) {
+ /* port reset */
+ if ( (val & UHCI_PORT_RESET) &&
+ !(port->ctrl & UHCI_PORT_RESET) ) {
+ dev->handle_packet(dev,
+ USB_MSG_RESET, 0, 0, NULL, 0);
+ }
+ }
+ port->ctrl = (port->ctrl & 0x01fb) | (val & ~0x01fb);
+ /* some bits are reset when a '1' is written to them */
+ port->ctrl &= ~(val & 0x000a);
+ }
+ break;
+ }
+}
+
+static uint32_t uhci_ioport_readw(void *opaque, uint32_t addr)
+{
+ UHCIState *s = opaque;
+ uint32_t val;
+
+ addr &= 0x1f;
+ switch(addr) {
+ case 0x00:
+ val = s->cmd;
+ break;
+ case 0x02:
+ val = s->status;
+ break;
+ case 0x04:
+ val = s->intr;
+ break;
+ case 0x06:
+ val = s->frnum;
+ break;
+ case 0x10 ... 0x1f:
+ {
+ UHCIPort *port;
+ int n;
+ n = (addr >> 1) & 7;
+ if (n >= NB_PORTS)
+ goto read_default;
+ port = &s->ports[n];
+ val = port->ctrl;
+ }
+ break;
+ default:
+ read_default:
+ val = 0xff7f; /* disabled port */
+ break;
+ }
+#ifdef DEBUG
+ printf("uhci readw port=0x%04x val=0x%04x\n", addr, val);
+#endif
+ return val;
+}
+
+static void uhci_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
+{
+ UHCIState *s = opaque;
+
+ addr &= 0x1f;
+#ifdef DEBUG
+ printf("uhci writel port=0x%04x val=0x%08x\n", addr, val);
+#endif
+ switch(addr) {
+ case 0x08:
+ s->fl_base_addr = val & ~0xfff;
+ break;
+ }
+}
+
+static uint32_t uhci_ioport_readl(void *opaque, uint32_t addr)
+{
+ UHCIState *s = opaque;
+ uint32_t val;
+
+ addr &= 0x1f;
+ switch(addr) {
+ case 0x08:
+ val = s->fl_base_addr;
+ break;
+ default:
+ val = 0xffffffff;
+ break;
+ }
+ return val;
+}
+
+static void uhci_attach(USBPort *port1, USBDevice *dev)
+{
+ UHCIState *s = port1->opaque;
+ UHCIPort *port = &s->ports[port1->index];
+
+ if (dev) {
+ if (port->dev) {
+ usb_attach(port1, NULL);
+ }
+ /* set connect status */
+ if (!(port->ctrl & UHCI_PORT_CCS)) {
+ port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC;
+ }
+ /* update speed */
+ if (dev->speed == USB_SPEED_LOW)
+ port->ctrl |= UHCI_PORT_LSDA;
+ else
+ port->ctrl &= ~UHCI_PORT_LSDA;
+ port->dev = dev;
+ /* send the attach message */
+ dev->handle_packet(dev,
+ USB_MSG_ATTACH, 0, 0, NULL, 0);
+ } else {
+ /* set connect status */
+ if (!(port->ctrl & UHCI_PORT_CCS)) {
+ port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC;
+ }
+ /* disable port */
+ if (port->ctrl & UHCI_PORT_EN) {
+ port->ctrl &= ~UHCI_PORT_EN;
+ port->ctrl |= UHCI_PORT_ENC;
+ }
+ dev = port->dev;
+ if (dev) {
+ /* send the detach message */
+ dev->handle_packet(dev,
+ USB_MSG_DETACH, 0, 0, NULL, 0);
+ }
+ port->dev = NULL;
+ }
+}
+
+static int uhci_broadcast_packet(UHCIState *s, uint8_t pid,
+ uint8_t devaddr, uint8_t devep,
+ uint8_t *data, int len)
+{
+ UHCIPort *port;
+ USBDevice *dev;
+ int i, ret;
+
+#ifdef DEBUG_PACKET
+ {
+ const char *pidstr;
+ switch(pid) {
+ case USB_TOKEN_SETUP: pidstr = "SETUP"; break;
+ case USB_TOKEN_IN: pidstr = "IN"; break;
+ case USB_TOKEN_OUT: pidstr = "OUT"; break;
+ default: pidstr = "?"; break;
+ }
+ printf("frame %d: pid=%s addr=0x%02x ep=%d len=%d\n",
+ s->frnum, pidstr, devaddr, devep, len);
+ if (pid != USB_TOKEN_IN) {
+ printf(" data_out=");
+ for(i = 0; i < len; i++) {
+ printf(" %02x", data[i]);
+ }
+ printf("\n");
+ }
+ }
+#endif
+ for(i = 0; i < NB_PORTS; i++) {
+ port = &s->ports[i];
+ dev = port->dev;
+ if (dev && (port->ctrl & UHCI_PORT_EN)) {
+ ret = dev->handle_packet(dev, pid,
+ devaddr, devep,
+ data, len);
+ if (ret != USB_RET_NODEV) {
+#ifdef DEBUG_PACKET
+ {
+ printf(" ret=%d ", ret);
+ if (pid == USB_TOKEN_IN && ret > 0) {
+ printf("data_in=");
+ for(i = 0; i < ret; i++) {
+ printf(" %02x", data[i]);
+ }
+ }
+ printf("\n");
+ }
+#endif
+ return ret;
+ }
+ }
+ }
+ return USB_RET_NODEV;
+}
+
+/* return -1 if fatal error (frame must be stopped)
+ 0 if TD successful
+ 1 if TD unsuccessful or inactive
+*/
+static int uhci_handle_td(UHCIState *s, UHCI_TD *td, int *int_mask)
+{
+ uint8_t pid;
+ uint8_t buf[1280];
+ int len, max_len, err, ret;
+
+ if (td->ctrl & TD_CTRL_IOC) {
+ *int_mask |= 0x01;
+ }
+
+ if (!(td->ctrl & TD_CTRL_ACTIVE))
+ return 1;
+
+ /* TD is active */
+ max_len = ((td->token >> 21) + 1) & 0x7ff;
+ pid = td->token & 0xff;
+ switch(pid) {
+ case USB_TOKEN_OUT:
+ case USB_TOKEN_SETUP:
+ cpu_physical_memory_read(td->buffer, buf, max_len);
+ ret = uhci_broadcast_packet(s, pid,
+ (td->token >> 8) & 0x7f,
+ (td->token >> 15) & 0xf,
+ buf, max_len);
+ len = max_len;
+ break;
+ case USB_TOKEN_IN:
+ ret = uhci_broadcast_packet(s, pid,
+ (td->token >> 8) & 0x7f,
+ (td->token >> 15) & 0xf,
+ buf, max_len);
+ if (ret >= 0) {
+ len = ret;
+ if (len > max_len) {
+ len = max_len;
+ ret = USB_RET_BABBLE;
+ }
+ if (len > 0) {
+ /* write the data back */
+ cpu_physical_memory_write(td->buffer, buf, len);
+ }
+ } else {
+ len = 0;
+ }
+ break;
+ default:
+ /* invalid pid : frame interrupted */
+ s->status |= UHCI_STS_HCPERR;
+ uhci_update_irq(s);
+ return -1;
+ }
+ if (td->ctrl & TD_CTRL_IOS)
+ td->ctrl &= ~TD_CTRL_ACTIVE;
+ if (ret >= 0) {
+ td->ctrl = (td->ctrl & ~0x7ff) | ((len - 1) & 0x7ff);
+ td->ctrl &= ~TD_CTRL_ACTIVE;
+ if (pid == USB_TOKEN_IN &&
+ (td->ctrl & TD_CTRL_SPD) &&
+ len < max_len) {
+ *int_mask |= 0x02;
+ /* short packet: do not update QH */
+ return 1;
+ } else {
+ /* success */
+ return 0;
+ }
+ } else {
+ switch(ret) {
+ default:
+ case USB_RET_NODEV:
+ do_timeout:
+ td->ctrl |= TD_CTRL_TIMEOUT;
+ err = (td->ctrl >> TD_CTRL_ERROR_SHIFT) & 3;
+ if (err != 0) {
+ err--;
+ if (err == 0) {
+ td->ctrl &= ~TD_CTRL_ACTIVE;
+ s->status |= UHCI_STS_USBERR;
+ uhci_update_irq(s);
+ }
+ }
+ td->ctrl = (td->ctrl & ~(3 << TD_CTRL_ERROR_SHIFT)) |
+ (err << TD_CTRL_ERROR_SHIFT);
+ return 1;
+ case USB_RET_NAK:
+ td->ctrl |= TD_CTRL_NAK;
+ if (pid == USB_TOKEN_SETUP)
+ goto do_timeout;
+ return 1;
+ case USB_RET_STALL:
+ td->ctrl |= TD_CTRL_STALL;
+ td->ctrl &= ~TD_CTRL_ACTIVE;
+ return 1;
+ case USB_RET_BABBLE:
+ td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL;
+ td->ctrl &= ~TD_CTRL_ACTIVE;
+ /* frame interrupted */
+ return -1;
+ }
+ }
+}
+
+static void uhci_frame_timer(void *opaque)
+{
+ UHCIState *s = opaque;
+ int64_t expire_time;
+ uint32_t frame_addr, link, old_td_ctrl, val;
+ int int_mask, cnt, ret;
+ UHCI_TD td;
+ UHCI_QH qh;
+
+ if (!(s->cmd & UHCI_CMD_RS)) {
+ qemu_del_timer(s->frame_timer);
+ return;
+ }
+ frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2);
+ cpu_physical_memory_read(frame_addr, (uint8_t *)&link, 4);
+ le32_to_cpus(&link);
+ int_mask = 0;
+ cnt = FRAME_MAX_LOOPS;
+ while ((link & 1) == 0) {
+ if (--cnt == 0)
+ break;
+ /* valid frame */
+ if (link & 2) {
+ /* QH */
+ cpu_physical_memory_read(link & ~0xf, (uint8_t *)&qh, sizeof(qh));
+ le32_to_cpus(&qh.link);
+ le32_to_cpus(&qh.el_link);
+ depth_first:
+ if (qh.el_link & 1) {
+ /* no element : go to next entry */
+ link = qh.link;
+ } else if (qh.el_link & 2) {
+ /* QH */
+ link = qh.el_link;
+ } else {
+ /* TD */
+ if (--cnt == 0)
+ break;
+ cpu_physical_memory_read(qh.el_link & ~0xf,
+ (uint8_t *)&td, sizeof(td));
+ le32_to_cpus(&td.link);
+ le32_to_cpus(&td.ctrl);
+ le32_to_cpus(&td.token);
+ le32_to_cpus(&td.buffer);
+ old_td_ctrl = td.ctrl;
+ ret = uhci_handle_td(s, &td, &int_mask);
+ /* update the status bits of the TD */
+ if (old_td_ctrl != td.ctrl) {
+ val = cpu_to_le32(td.ctrl);
+ cpu_physical_memory_write((qh.el_link & ~0xf) + 4,
+ (const uint8_t *)&val,
+ sizeof(val));
+ }
+ if (ret < 0)
+ break; /* interrupted frame */
+ if (ret == 0) {
+ /* update qh element link */
+ qh.el_link = td.link;
+ val = cpu_to_le32(qh.el_link);
+ cpu_physical_memory_write((link & ~0xf) + 4,
+ (const uint8_t *)&val,
+ sizeof(val));
+ if (qh.el_link & 4) {
+ /* depth first */
+ goto depth_first;
+ }
+ }
+ /* go to next entry */
+ link = qh.link;
+ }
+ } else {
+ /* TD */
+ cpu_physical_memory_read(link & ~0xf, (uint8_t *)&td, sizeof(td));
+ le32_to_cpus(&td.link);
+ le32_to_cpus(&td.ctrl);
+ le32_to_cpus(&td.token);
+ le32_to_cpus(&td.buffer);
+ old_td_ctrl = td.ctrl;
+ ret = uhci_handle_td(s, &td, &int_mask);
+ /* update the status bits of the TD */
+ if (old_td_ctrl != td.ctrl) {
+ val = cpu_to_le32(td.ctrl);
+ cpu_physical_memory_write((link & ~0xf) + 4,
+ (const uint8_t *)&val,
+ sizeof(val));
+ }
+ if (ret < 0)
+ break; /* interrupted frame */
+ link = td.link;
+ }
+ }
+ s->frnum = (s->frnum + 1) & 0x7ff;
+ if (int_mask) {
+ s->status2 |= int_mask;
+ s->status |= UHCI_STS_USBINT;
+ uhci_update_irq(s);
+ }
+ /* prepare the timer for the next frame */
+ expire_time = qemu_get_clock(vm_clock) +
+ (ticks_per_sec / FRAME_TIMER_FREQ);
+ qemu_mod_timer(s->frame_timer, expire_time);
+}
+
+static void uhci_map(PCIDevice *pci_dev, int region_num,
+ uint32_t addr, uint32_t size, int type)
+{
+ UHCIState *s = (UHCIState *)pci_dev;
+
+ register_ioport_write(addr, 32, 2, uhci_ioport_writew, s);
+ register_ioport_read(addr, 32, 2, uhci_ioport_readw, s);
+ register_ioport_write(addr, 32, 4, uhci_ioport_writel, s);
+ register_ioport_read(addr, 32, 4, uhci_ioport_readl, s);
+ register_ioport_write(addr, 32, 1, uhci_ioport_writeb, s);
+ register_ioport_read(addr, 32, 1, uhci_ioport_readb, s);
+}
+
+void usb_uhci_init(PCIBus *bus, USBPort **usb_ports)
+{
+ UHCIState *s;
+ uint8_t *pci_conf;
+ UHCIPort *port;
+ int i;
+
+ s = (UHCIState *)pci_register_device(bus,
+ "USB-UHCI", sizeof(UHCIState),
+ -1,
+ NULL, NULL);
+ pci_conf = s->dev.config;
+ pci_conf[0x00] = 0x86;
+ pci_conf[0x01] = 0x80;
+ pci_conf[0x02] = 0x20;
+ pci_conf[0x03] = 0x70;
+ pci_conf[0x08] = 0x01; // revision number
+ pci_conf[0x09] = 0x00;
+ pci_conf[0x0a] = 0x03;
+ pci_conf[0x0b] = 0x0c;
+ pci_conf[0x0e] = 0x00; // header_type
+ pci_conf[0x3d] = 1; // interrupt pin 0
+
+ for(i = 0; i < NB_PORTS; i++) {
+ port = &s->ports[i];
+ port->port.opaque = s;
+ port->port.index = i;
+ port->port.attach = uhci_attach;
+ usb_ports[i] = &port->port;
+ }
+ s->frame_timer = qemu_new_timer(vm_clock, uhci_frame_timer, s);
+
+ uhci_reset(s);
+
+ pci_register_io_region(&s->dev, 0, 0x20,
+ PCI_ADDRESS_SPACE_IO, uhci_map);
+}
diff --git a/hw/usb.c b/hw/usb.c
new file mode 100644
index 0000000000..cfbdb15d11
--- /dev/null
+++ b/hw/usb.c
@@ -0,0 +1,694 @@
+/*
+ * QEMU USB emulation
+ *
+ * Copyright (c) 2005 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "vl.h"
+
+void usb_attach(USBPort *port, USBDevice *dev)
+{
+ port->attach(port, dev);
+}
+
+/**********************/
+/* generic USB device helpers (you are not forced to use them when
+ writing your USB device driver, but they help handling the
+ protocol)
+*/
+
+#define SETUP_STATE_IDLE 0
+#define SETUP_STATE_DATA 1
+#define SETUP_STATE_ACK 2
+
+int usb_generic_handle_packet(USBDevice *s, int pid,
+ uint8_t devaddr, uint8_t devep,
+ uint8_t *data, int len)
+{
+ int l, ret = 0;
+
+ switch(pid) {
+ case USB_MSG_ATTACH:
+ s->state = USB_STATE_ATTACHED;
+ break;
+ case USB_MSG_DETACH:
+ s->state = USB_STATE_NOTATTACHED;
+ break;
+ case USB_MSG_RESET:
+ s->remote_wakeup = 0;
+ s->addr = 0;
+ s->state = USB_STATE_DEFAULT;
+ s->handle_reset(s);
+ break;
+ case USB_TOKEN_SETUP:
+ if (s->state < USB_STATE_DEFAULT || devaddr != s->addr)
+ return USB_RET_NODEV;
+ if (len != 8)
+ goto fail;
+ memcpy(s->setup_buf, data, 8);
+ s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6];
+ s->setup_index = 0;
+ if (s->setup_buf[0] & USB_DIR_IN) {
+ ret = s->handle_control(s,
+ (s->setup_buf[0] << 8) | s->setup_buf[1],
+ (s->setup_buf[3] << 8) | s->setup_buf[2],
+ (s->setup_buf[5] << 8) | s->setup_buf[4],
+ s->setup_len,
+ s->data_buf);
+ if (ret < 0)
+ return ret;
+ if (ret < s->setup_len)
+ s->setup_len = ret;
+ s->setup_state = SETUP_STATE_DATA;
+ } else {
+ if (s->setup_len == 0)
+ s->setup_state = SETUP_STATE_ACK;
+ else
+ s->setup_state = SETUP_STATE_DATA;
+ }
+ break;
+ case USB_TOKEN_IN:
+ if (s->state < USB_STATE_DEFAULT || devaddr != s->addr)
+ return USB_RET_NODEV;
+ switch(devep) {
+ case 0:
+ switch(s->setup_state) {
+ case SETUP_STATE_ACK:
+ s->setup_state = SETUP_STATE_IDLE;
+ if (!(s->setup_buf[0] & USB_DIR_IN)) {
+ ret = s->handle_control(s,
+ (s->setup_buf[0] << 8) | s->setup_buf[1],
+ (s->setup_buf[3] << 8) | s->setup_buf[2],
+ (s->setup_buf[5] << 8) | s->setup_buf[4],
+ s->setup_len,
+ s->data_buf);
+ if (ret > 0)
+ ret = 0;
+ } else {
+ goto fail;
+ }
+ break;
+ case SETUP_STATE_DATA:
+ if (s->setup_buf[0] & USB_DIR_IN) {
+ l = s->setup_len - s->setup_index;
+ if (l > len)
+ l = len;
+ memcpy(data, s->data_buf + s->setup_index, l);
+ s->setup_index += l;
+ if (s->setup_index >= s->setup_len)
+ s->setup_state = SETUP_STATE_ACK;
+ ret = l;
+ } else {
+ s->setup_state = SETUP_STATE_IDLE;
+ goto fail;
+ }
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ default:
+ ret = s->handle_data(s, pid, devep, data, len);
+ break;
+ }
+ break;
+ case USB_TOKEN_OUT:
+ if (s->state < USB_STATE_DEFAULT || devaddr != s->addr)
+ return USB_RET_NODEV;
+ switch(devep) {
+ case 0:
+ switch(s->setup_state) {
+ case SETUP_STATE_ACK:
+ s->setup_state = SETUP_STATE_IDLE;
+ if (s->setup_buf[0] & USB_DIR_IN) {
+ /* transfer OK */
+ } else {
+ goto fail;
+ }
+ break;
+ case SETUP_STATE_DATA:
+ if (!(s->setup_buf[0] & USB_DIR_IN)) {
+ l = s->setup_len - s->setup_index;
+ if (l > len)
+ l = len;
+ memcpy(s->data_buf + s->setup_index, data, l);
+ s->setup_index += l;
+ if (s->setup_index >= s->setup_len)
+ s->setup_state = SETUP_STATE_ACK;
+ ret = l;
+ } else {
+ s->setup_state = SETUP_STATE_IDLE;
+ goto fail;
+ }
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ default:
+ ret = s->handle_data(s, pid, devep, data, len);
+ break;
+ }
+ break;
+ default:
+ fail:
+ ret = USB_RET_STALL;
+ break;
+ }
+ return ret;
+}
+
+/* XXX: fix overflow */
+int set_usb_string(uint8_t *buf, const char *str)
+{
+ int len, i;
+ uint8_t *q;
+
+ q = buf;
+ len = strlen(str);
+ *q++ = 2 * len + 1;
+ *q++ = 3;
+ for(i = 0; i < len; i++) {
+ *q++ = str[i];
+ *q++ = 0;
+ }
+ return q - buf;
+}
+
+/**********************/
+/* USB hub emulation */
+
+//#define DEBUG
+
+#define MAX_PORTS 8
+
+#define DS_IDLE 0
+#define DS_CONTROL_IN 1
+#define DS_CONTROL_OUT 2
+
+typedef struct USBHubPort {
+ USBPort port;
+ USBDevice *dev;
+ uint16_t wPortStatus;
+ uint16_t wPortChange;
+} USBHubPort;
+
+typedef struct USBHubState {
+ USBDevice dev;
+ int nb_ports;
+ USBHubPort ports[MAX_PORTS];
+} USBHubState;
+
+#define ClearHubFeature (0x2000 | USB_REQ_CLEAR_FEATURE)
+#define ClearPortFeature (0x2300 | USB_REQ_CLEAR_FEATURE)
+#define GetHubDescriptor (0xa000 | USB_REQ_GET_DESCRIPTOR)
+#define GetHubStatus (0xa000 | USB_REQ_GET_STATUS)
+#define GetPortStatus (0xa300 | USB_REQ_GET_STATUS)
+#define SetHubFeature (0x2000 | USB_REQ_SET_FEATURE)
+#define SetPortFeature (0x2300 | USB_REQ_SET_FEATURE)
+
+#define PORT_STAT_CONNECTION 0x0001
+#define PORT_STAT_ENABLE 0x0002
+#define PORT_STAT_SUSPEND 0x0004
+#define PORT_STAT_OVERCURRENT 0x0008
+#define PORT_STAT_RESET 0x0010
+#define PORT_STAT_POWER 0x0100
+#define PORT_STAT_LOW_SPEED 0x0200
+#define PORT_STAT_HIGH_SPEED 0x0400
+#define PORT_STAT_TEST 0x0800
+#define PORT_STAT_INDICATOR 0x1000
+
+#define PORT_STAT_C_CONNECTION 0x0001
+#define PORT_STAT_C_ENABLE 0x0002
+#define PORT_STAT_C_SUSPEND 0x0004
+#define PORT_STAT_C_OVERCURRENT 0x0008
+#define PORT_STAT_C_RESET 0x0010
+
+#define PORT_CONNECTION 0
+#define PORT_ENABLE 1
+#define PORT_SUSPEND 2
+#define PORT_OVERCURRENT 3
+#define PORT_RESET 4
+#define PORT_POWER 8
+#define PORT_LOWSPEED 9
+#define PORT_HIGHSPEED 10
+#define PORT_C_CONNECTION 16
+#define PORT_C_ENABLE 17
+#define PORT_C_SUSPEND 18
+#define PORT_C_OVERCURRENT 19
+#define PORT_C_RESET 20
+#define PORT_TEST 21
+#define PORT_INDICATOR 22
+
+/* same as Linux kernel root hubs */
+
+static const uint8_t qemu_hub_dev_descriptor[] = {
+ 0x12, /* __u8 bLength; */
+ 0x01, /* __u8 bDescriptorType; Device */
+ 0x10, 0x01, /* __u16 bcdUSB; v1.1 */
+
+ 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
+ 0x00, /* __u8 bDeviceSubClass; */
+ 0x00, /* __u8 bDeviceProtocol; [ low/full speeds only ] */
+ 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
+
+ 0x00, 0x00, /* __u16 idVendor; */
+ 0x00, 0x00, /* __u16 idProduct; */
+ 0x01, 0x01, /* __u16 bcdDevice */
+
+ 0x03, /* __u8 iManufacturer; */
+ 0x02, /* __u8 iProduct; */
+ 0x01, /* __u8 iSerialNumber; */
+ 0x01 /* __u8 bNumConfigurations; */
+};
+
+/* XXX: patch interrupt size */
+static const uint8_t qemu_hub_config_descriptor[] = {
+
+ /* one configuration */
+ 0x09, /* __u8 bLength; */
+ 0x02, /* __u8 bDescriptorType; Configuration */
+ 0x19, 0x00, /* __u16 wTotalLength; */
+ 0x01, /* __u8 bNumInterfaces; (1) */
+ 0x01, /* __u8 bConfigurationValue; */
+ 0x00, /* __u8 iConfiguration; */
+ 0xc0, /* __u8 bmAttributes;
+ Bit 7: must be set,
+ 6: Self-powered,
+ 5: Remote wakeup,
+ 4..0: resvd */
+ 0x00, /* __u8 MaxPower; */
+
+ /* USB 1.1:
+ * USB 2.0, single TT organization (mandatory):
+ * one interface, protocol 0
+ *
+ * USB 2.0, multiple TT organization (optional):
+ * two interfaces, protocols 1 (like single TT)
+ * and 2 (multiple TT mode) ... config is
+ * sometimes settable
+ * NOT IMPLEMENTED
+ */
+
+ /* one interface */
+ 0x09, /* __u8 if_bLength; */
+ 0x04, /* __u8 if_bDescriptorType; Interface */
+ 0x00, /* __u8 if_bInterfaceNumber; */
+ 0x00, /* __u8 if_bAlternateSetting; */
+ 0x01, /* __u8 if_bNumEndpoints; */
+ 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
+ 0x00, /* __u8 if_bInterfaceSubClass; */
+ 0x00, /* __u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
+ 0x00, /* __u8 if_iInterface; */
+
+ /* one endpoint (status change endpoint) */
+ 0x07, /* __u8 ep_bLength; */
+ 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+ 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
+ 0x03, /* __u8 ep_bmAttributes; Interrupt */
+ 0x02, 0x00, /* __u16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */
+ 0xff /* __u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+};
+
+static const uint8_t qemu_hub_hub_descriptor[] =
+{
+ 0x09, /* __u8 bLength; */
+ 0x29, /* __u8 bDescriptorType; Hub-descriptor */
+ 0x00, /* __u8 bNbrPorts; (patched later) */
+ 0x0a, /* __u16 wHubCharacteristics; */
+ 0x00, /* (per-port OC, no power switching) */
+ 0x01, /* __u8 bPwrOn2pwrGood; 2ms */
+ 0x00, /* __u8 bHubContrCurrent; 0 mA */
+ 0x00, /* __u8 DeviceRemovable; *** 7 Ports max *** */
+ 0xff /* __u8 PortPwrCtrlMask; *** 7 ports max *** */
+};
+
+static void usb_hub_attach(USBPort *port1, USBDevice *dev)
+{
+ USBHubState *s = port1->opaque;
+ USBHubPort *port = &s->ports[port1->index];
+
+ if (dev) {
+ if (port->dev)
+ usb_attach(port1, NULL);
+
+ port->wPortStatus |= PORT_STAT_CONNECTION;
+ port->wPortChange |= PORT_STAT_C_CONNECTION;
+ if (dev->speed == USB_SPEED_LOW)
+ port->wPortStatus |= PORT_STAT_LOW_SPEED;
+ else
+ port->wPortStatus &= ~PORT_STAT_LOW_SPEED;
+ port->dev = dev;
+ } else {
+ dev = port->dev;
+ if (dev) {
+ port->wPortStatus &= ~PORT_STAT_CONNECTION;
+ port->wPortChange |= PORT_STAT_C_CONNECTION;
+ if (port->wPortStatus & PORT_STAT_ENABLE) {
+ port->wPortStatus &= ~PORT_STAT_ENABLE;
+ port->wPortChange |= PORT_STAT_C_ENABLE;
+ }
+ port->dev = NULL;
+ }
+ }
+}
+
+static void usb_hub_handle_reset(USBDevice *dev)
+{
+ /* XXX: do it */
+}
+
+static int usb_hub_handle_control(USBDevice *dev, int request, int value,
+ int index, int length, uint8_t *data)
+{
+ USBHubState *s = (USBHubState *)dev;
+ int ret;
+
+ switch(request) {
+ case DeviceRequest | USB_REQ_GET_STATUS:
+ data[0] = (1 << USB_DEVICE_SELF_POWERED) |
+ (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
+ data[1] = 0x00;
+ ret = 2;
+ break;
+ case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
+ if (value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->remote_wakeup = 0;
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_FEATURE:
+ if (value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->remote_wakeup = 1;
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_ADDRESS:
+ dev->addr = value;
+ ret = 0;
+ break;
+ case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
+ switch(value >> 8) {
+ case USB_DT_DEVICE:
+ memcpy(data, qemu_hub_dev_descriptor,
+ sizeof(qemu_hub_dev_descriptor));
+ ret = sizeof(qemu_hub_dev_descriptor);
+ break;
+ case USB_DT_CONFIG:
+ memcpy(data, qemu_hub_config_descriptor,
+ sizeof(qemu_hub_config_descriptor));
+ ret = sizeof(qemu_hub_config_descriptor);
+ break;
+ case USB_DT_STRING:
+ switch(value & 0xff) {
+ case 0:
+ /* language ids */
+ data[0] = 4;
+ data[1] = 3;
+ data[2] = 0x09;
+ data[3] = 0x04;
+ ret = 4;
+ break;
+ case 1:
+ /* serial number */
+ ret = set_usb_string(data, "314159");
+ break;
+ case 2:
+ /* product description */
+ ret = set_usb_string(data, "QEMU USB Hub");
+ break;
+ case 3:
+ /* vendor description */
+ ret = set_usb_string(data, "QEMU " QEMU_VERSION);
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ case DeviceRequest | USB_REQ_GET_CONFIGURATION:
+ data[0] = 1;
+ ret = 1;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
+ ret = 0;
+ break;
+ case DeviceRequest | USB_REQ_GET_INTERFACE:
+ data[0] = 0;
+ ret = 1;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_INTERFACE:
+ ret = 0;
+ break;
+ /* usb specific requests */
+ case GetHubStatus:
+ data[0] = 0;
+ data[1] = 0;
+ data[2] = 0;
+ data[3] = 0;
+ ret = 4;
+ break;
+ case GetPortStatus:
+ {
+ unsigned int n = index - 1;
+ USBHubPort *port;
+ if (n >= s->nb_ports)
+ goto fail;
+ port = &s->ports[n];
+ data[0] = port->wPortStatus;
+ data[1] = port->wPortStatus >> 8;
+ data[2] = port->wPortChange;
+ data[3] = port->wPortChange >> 8;
+ ret = 4;
+ }
+ break;
+ case SetHubFeature:
+ case ClearHubFeature:
+ if (value == 0 || value == 1) {
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case SetPortFeature:
+ {
+ unsigned int n = index - 1;
+ USBHubPort *port;
+ USBDevice *dev;
+ if (n >= s->nb_ports)
+ goto fail;
+ port = &s->ports[n];
+ dev = port->dev;
+ switch(value) {
+ case PORT_SUSPEND:
+ port->wPortStatus |= PORT_STAT_SUSPEND;
+ break;
+ case PORT_RESET:
+ if (dev) {
+ dev->handle_packet(dev,
+ USB_MSG_RESET, 0, 0, NULL, 0);
+ port->wPortChange |= PORT_STAT_C_RESET;
+ /* set enable bit */
+ port->wPortChange |= PORT_STAT_C_ENABLE;
+ port->wPortStatus |= PORT_STAT_ENABLE;
+ }
+ break;
+ case PORT_POWER:
+ break;
+ default:
+ goto fail;
+ }
+ ret = 0;
+ }
+ break;
+ case ClearPortFeature:
+ {
+ unsigned int n = index - 1;
+ USBHubPort *port;
+ USBDevice *dev;
+ if (n >= s->nb_ports)
+ goto fail;
+ port = &s->ports[n];
+ dev = port->dev;
+ switch(value) {
+ case PORT_ENABLE:
+ port->wPortStatus &= ~PORT_STAT_ENABLE;
+ break;
+ case PORT_C_ENABLE:
+ port->wPortChange &= ~PORT_STAT_C_ENABLE;
+ break;
+ case PORT_SUSPEND:
+ port->wPortStatus &= ~PORT_STAT_SUSPEND;
+ break;
+ case PORT_C_SUSPEND:
+ port->wPortChange &= ~PORT_STAT_C_SUSPEND;
+ break;
+ case PORT_C_CONNECTION:
+ port->wPortChange &= ~PORT_STAT_C_CONNECTION;
+ break;
+ case PORT_C_OVERCURRENT:
+ port->wPortChange &= ~PORT_STAT_C_OVERCURRENT;
+ break;
+ case PORT_C_RESET:
+ port->wPortChange &= ~PORT_STAT_C_RESET;
+ break;
+ default:
+ goto fail;
+ }
+ ret = 0;
+ }
+ break;
+ case GetHubDescriptor:
+ memcpy(data, qemu_hub_hub_descriptor,
+ sizeof(qemu_hub_hub_descriptor));
+ data[2] = s->nb_ports;
+ ret = sizeof(qemu_hub_hub_descriptor);
+ break;
+ default:
+ fail:
+ ret = USB_RET_STALL;
+ }
+ return ret;
+}
+
+static int usb_hub_handle_data(USBDevice *dev, int pid,
+ uint8_t devep, uint8_t *data, int len)
+{
+ USBHubState *s = (USBHubState *)dev;
+ int ret;
+
+ switch(pid) {
+ case USB_TOKEN_IN:
+ if (devep == 1) {
+ USBHubPort *port;
+ unsigned int status;
+ int i, n;
+ n = (s->nb_ports + 1 + 7) / 8;
+ if (n > len)
+ return USB_RET_BABBLE;
+ status = 0;
+ for(i = 0; i < s->nb_ports; i++) {
+ port = &s->ports[i];
+ if (port->wPortChange)
+ status |= (1 << (i + 1));
+ }
+ if (status != 0) {
+ for(i = 0; i < n; i++) {
+ data[i] = status >> (8 * i);
+ }
+ ret = n;
+ } else {
+ ret = 0;
+ }
+ } else {
+ goto fail;
+ }
+ break;
+ case USB_TOKEN_OUT:
+ default:
+ fail:
+ ret = USB_RET_STALL;
+ break;
+ }
+ return ret;
+}
+
+static int usb_hub_broadcast_packet(USBHubState *s, int pid,
+ uint8_t devaddr, uint8_t devep,
+ uint8_t *data, int len)
+{
+ USBHubPort *port;
+ USBDevice *dev;
+ int i, ret;
+
+ for(i = 0; i < s->nb_ports; i++) {
+ port = &s->ports[i];
+ dev = port->dev;
+ if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) {
+ ret = dev->handle_packet(dev, pid,
+ devaddr, devep,
+ data, len);
+ if (ret != USB_RET_NODEV) {
+ return ret;
+ }
+ }
+ }
+ return USB_RET_NODEV;
+}
+
+static int usb_hub_handle_packet(USBDevice *dev, int pid,
+ uint8_t devaddr, uint8_t devep,
+ uint8_t *data, int len)
+{
+ USBHubState *s = (USBHubState *)dev;
+
+#if defined(DEBUG) && 0
+ printf("usb_hub: pid=0x%x\n", pid);
+#endif
+ if (dev->state == USB_STATE_DEFAULT &&
+ dev->addr != 0 &&
+ devaddr != dev->addr &&
+ (pid == USB_TOKEN_SETUP ||
+ pid == USB_TOKEN_OUT ||
+ pid == USB_TOKEN_IN)) {
+ /* broadcast the packet to the devices */
+ return usb_hub_broadcast_packet(s, pid, devaddr, devep, data, len);
+ }
+ return usb_generic_handle_packet(dev, pid, devaddr, devep, data, len);
+}
+
+USBDevice *usb_hub_init(USBPort **usb_ports, int nb_ports)
+{
+ USBHubState *s;
+ USBHubPort *port;
+ int i;
+
+ if (nb_ports > MAX_PORTS)
+ return NULL;
+ s = qemu_mallocz(sizeof(USBHubState));
+ if (!s)
+ return NULL;
+ s->dev.speed = USB_SPEED_FULL;
+ s->dev.handle_packet = usb_hub_handle_packet;
+
+ /* generic USB device init */
+ s->dev.handle_reset = usb_hub_handle_reset;
+ s->dev.handle_control = usb_hub_handle_control;
+ s->dev.handle_data = usb_hub_handle_data;
+
+ s->nb_ports = nb_ports;
+ for(i = 0; i < s->nb_ports; i++) {
+ port = &s->ports[i];
+ port->wPortStatus = PORT_STAT_POWER;
+ port->wPortChange = 0;
+ port->port.attach = usb_hub_attach;
+ port->port.opaque = s;
+ port->port.index = i;
+ usb_ports[i] = &port->port;
+ }
+ return (USBDevice *)s;
+}
diff --git a/hw/usb.h b/hw/usb.h
new file mode 100644
index 0000000000..1bfce3b516
--- /dev/null
+++ b/hw/usb.h
@@ -0,0 +1,139 @@
+/*
+ * QEMU USB API
+ *
+ * Copyright (c) 2005 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#define USB_TOKEN_SETUP 0x2d
+#define USB_TOKEN_IN 0x69 /* device -> host */
+#define USB_TOKEN_OUT 0xe1 /* host -> device */
+
+/* specific usb messages, also sent in the 'pid' parameter */
+#define USB_MSG_ATTACH 0x100
+#define USB_MSG_DETACH 0x101
+#define USB_MSG_RESET 0x102
+
+#define USB_RET_NODEV (-1)
+#define USB_RET_NAK (-2)
+#define USB_RET_STALL (-3)
+#define USB_RET_BABBLE (-4)
+
+#define USB_SPEED_LOW 0
+#define USB_SPEED_FULL 1
+#define USB_SPEED_HIGH 2
+
+#define USB_STATE_NOTATTACHED 0
+#define USB_STATE_ATTACHED 1
+//#define USB_STATE_POWERED 2
+#define USB_STATE_DEFAULT 3
+//#define USB_STATE_ADDRESS 4
+//#define USB_STATE_CONFIGURED 5
+#define USB_STATE_SUSPENDED 6
+
+#define USB_DIR_OUT 0
+#define USB_DIR_IN 0x80
+
+#define USB_TYPE_MASK (0x03 << 5)
+#define USB_TYPE_STANDARD (0x00 << 5)
+#define USB_TYPE_CLASS (0x01 << 5)
+#define USB_TYPE_VENDOR (0x02 << 5)
+#define USB_TYPE_RESERVED (0x03 << 5)
+
+#define USB_RECIP_MASK 0x1f
+#define USB_RECIP_DEVICE 0x00
+#define USB_RECIP_INTERFACE 0x01
+#define USB_RECIP_ENDPOINT 0x02
+#define USB_RECIP_OTHER 0x03
+
+#define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
+#define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
+
+#define USB_REQ_GET_STATUS 0x00
+#define USB_REQ_CLEAR_FEATURE 0x01
+#define USB_REQ_SET_FEATURE 0x03
+#define USB_REQ_SET_ADDRESS 0x05
+#define USB_REQ_GET_DESCRIPTOR 0x06
+#define USB_REQ_SET_DESCRIPTOR 0x07
+#define USB_REQ_GET_CONFIGURATION 0x08
+#define USB_REQ_SET_CONFIGURATION 0x09
+#define USB_REQ_GET_INTERFACE 0x0A
+#define USB_REQ_SET_INTERFACE 0x0B
+#define USB_REQ_SYNCH_FRAME 0x0C
+
+#define USB_DEVICE_SELF_POWERED 0
+#define USB_DEVICE_REMOTE_WAKEUP 1
+
+#define USB_DT_DEVICE 0x01
+#define USB_DT_CONFIG 0x02
+#define USB_DT_STRING 0x03
+#define USB_DT_INTERFACE 0x04
+#define USB_DT_ENDPOINT 0x05
+
+typedef struct USBPort USBPort;
+typedef struct USBDevice USBDevice;
+
+/* definition of a USB device */
+struct USBDevice {
+ void *opaque;
+ int (*handle_packet)(USBDevice *dev, int pid,
+ uint8_t devaddr, uint8_t devep,
+ uint8_t *data, int len);
+ int speed;
+
+ /* The following fields are used by the generic USB device
+ layer. They are here just to avoid creating a new structure for
+ them. */
+ void (*handle_reset)(USBDevice *dev);
+ int (*handle_control)(USBDevice *dev, int request, int value,
+ int index, int length, uint8_t *data);
+ int (*handle_data)(USBDevice *dev, int pid, uint8_t devep,
+ uint8_t *data, int len);
+ uint8_t addr;
+
+ int state;
+ uint8_t setup_buf[8];
+ uint8_t data_buf[1024];
+ int remote_wakeup;
+ int setup_state;
+ int setup_len;
+ int setup_index;
+};
+
+/* USB port on which a device can be connected */
+struct USBPort {
+ void (*attach)(USBPort *port, USBDevice *dev);
+ void *opaque;
+ int index; /* internal port index, may be used with the opaque */
+};
+
+void usb_attach(USBPort *port, USBDevice *dev);
+int usb_generic_handle_packet(USBDevice *s, int pid,
+ uint8_t devaddr, uint8_t devep,
+ uint8_t *data, int len);
+int set_usb_string(uint8_t *buf, const char *str);
+
+/* usb hub */
+USBDevice *usb_hub_init(USBPort **usb_ports, int nb_ports);
+
+/* usb-uhci.c */
+void usb_uhci_init(PCIBus *bus, USBPort **usb_ports);
+
+/* usb-linux.c */
+USBDevice *usb_host_hub_init(void);
diff --git a/usb-linux.c b/usb-linux.c
new file mode 100644
index 0000000000..87f3d120b9
--- /dev/null
+++ b/usb-linux.c
@@ -0,0 +1,309 @@
+/*
+ * Linux host USB redirector
+ *
+ * Copyright (c) 2005 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "vl.h"
+
+#if defined(__linux__)
+#include <dirent.h>
+#include <sys/ioctl.h>
+#include <linux/usbdevice_fs.h>
+#include <linux/version.h>
+
+/* We redefine it to avoid version problems */
+struct usb_ctrltransfer {
+ uint8_t bRequestType;
+ uint8_t bRequest;
+ uint16_t wValue;
+ uint16_t wIndex;
+ uint16_t wLength;
+ uint32_t timeout;
+ void *data;
+};
+
+//#define DEBUG
+
+#define MAX_DEVICES 8
+
+#define USBDEVFS_PATH "/proc/bus/usb"
+
+typedef struct USBHostDevice {
+ USBDevice dev;
+ int fd;
+} USBHostDevice;
+
+typedef struct USBHostHubState {
+ USBDevice *hub_dev;
+ USBPort *hub_ports[MAX_DEVICES];
+ USBDevice *hub_devices[MAX_DEVICES];
+} USBHostHubState;
+
+static void usb_host_handle_reset(USBDevice *dev)
+{
+#if 0
+ USBHostDevice *s = (USBHostDevice *)dev;
+ /* USBDEVFS_RESET, but not the first time as it has already be
+ done by the host OS */
+ ioctl(s->fd, USBDEVFS_RESET);
+#endif
+}
+
+static int usb_host_handle_control(USBDevice *dev,
+ int request,
+ int value,
+ int index,
+ int length,
+ uint8_t *data)
+{
+ USBHostDevice *s = (USBHostDevice *)dev;
+ struct usb_ctrltransfer ct;
+ int ret;
+
+ if (request == (DeviceOutRequest | USB_REQ_SET_ADDRESS)) {
+ /* specific SET_ADDRESS support */
+ dev->addr = value;
+ return 0;
+ } else {
+ ct.bRequestType = request >> 8;
+ ct.bRequest = request;
+ ct.wValue = value;
+ ct.wIndex = index;
+ ct.wLength = length;
+ ct.timeout = 50;
+ ct.data = data;
+ ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
+ if (ret < 0) {
+ switch(errno) {
+ case ETIMEDOUT:
+ return USB_RET_NAK;
+ default:
+ return USB_RET_STALL;
+ }
+ } else {
+ return ret;
+ }
+ }
+}
+
+static int usb_host_handle_data(USBDevice *dev, int pid,
+ uint8_t devep,
+ uint8_t *data, int len)
+{
+ USBHostDevice *s = (USBHostDevice *)dev;
+ struct usbdevfs_bulktransfer bt;
+ int ret;
+
+ /* XXX: optimize and handle all data types by looking at the
+ config descriptor */
+ if (pid == USB_TOKEN_IN)
+ devep |= 0x80;
+ bt.ep = devep;
+ bt.len = len;
+ bt.timeout = 50;
+ bt.data = data;
+ ret = ioctl(s->fd, USBDEVFS_BULK, &bt);
+ if (ret < 0) {
+ switch(errno) {
+ case ETIMEDOUT:
+ return USB_RET_NAK;
+ case EPIPE:
+ default:
+#ifdef DEBUG
+ printf("handle_data: errno=%d\n", errno);
+#endif
+ return USB_RET_STALL;
+ }
+ } else {
+ return ret;
+ }
+}
+
+static int usb_host_handle_packet(USBDevice *dev, int pid,
+ uint8_t devaddr, uint8_t devep,
+ uint8_t *data, int len)
+{
+ return usb_generic_handle_packet(dev, pid, devaddr, devep, data, len);
+}
+
+/* XXX: exclude high speed devices or implement EHCI */
+static void scan_host_device(USBHostHubState *s, const char *filename)
+{
+ int fd, interface, ret, i;
+ USBHostDevice *dev;
+ struct usbdevfs_connectinfo ci;
+ uint8_t descr[1024];
+ int descr_len, dev_descr_len, config_descr_len, nb_interfaces;
+
+#ifdef DEBUG
+ printf("scanning %s\n", filename);
+#endif
+ fd = open(filename, O_RDWR);
+ if (fd < 0) {
+ perror(filename);
+ return;
+ }
+
+ /* read the config description */
+ descr_len = read(fd, descr, sizeof(descr));
+ if (descr_len <= 0) {
+ perror("read descr");
+ goto fail;
+ }
+
+ i = 0;
+ dev_descr_len = descr[0];
+ if (dev_descr_len > descr_len)
+ goto fail;
+ i += dev_descr_len;
+ config_descr_len = descr[i];
+ if (i + config_descr_len > descr_len)
+ goto fail;
+ nb_interfaces = descr[i + 4];
+ if (nb_interfaces != 1) {
+ /* NOTE: currently we grab only one interface */
+ goto fail;
+ }
+ /* XXX: only grab if all interfaces are free */
+ interface = 0;
+ ret = ioctl(fd, USBDEVFS_CLAIMINTERFACE, &interface);
+ if (ret < 0) {
+ if (errno == EBUSY) {
+#ifdef DEBUG
+ printf("%s already grabbed\n", filename);
+#endif
+ } else {
+ perror("USBDEVFS_CLAIMINTERFACE");
+ }
+ fail:
+ close(fd);
+ return;
+ }
+
+ ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci);
+ if (ret < 0) {
+ perror("USBDEVFS_CONNECTINFO");
+ goto fail;
+ }
+
+#ifdef DEBUG
+ printf("%s grabbed\n", filename);
+#endif
+
+ /* find a free slot */
+ for(i = 0; i < MAX_DEVICES; i++) {
+ if (!s->hub_devices[i])
+ break;
+ }
+ if (i == MAX_DEVICES) {
+#ifdef DEBUG
+ printf("too many host devices\n");
+ goto fail;
+#endif
+ }
+
+ dev = qemu_mallocz(sizeof(USBHostDevice));
+ if (!dev)
+ goto fail;
+ dev->fd = fd;
+ if (ci.slow)
+ dev->dev.speed = USB_SPEED_LOW;
+ else
+ dev->dev.speed = USB_SPEED_HIGH;
+ dev->dev.handle_packet = usb_host_handle_packet;
+
+ dev->dev.handle_reset = usb_host_handle_reset;
+ dev->dev.handle_control = usb_host_handle_control;
+ dev->dev.handle_data = usb_host_handle_data;
+
+ s->hub_devices[i] = (USBDevice *)dev;
+
+ /* activate device on hub */
+ usb_attach(s->hub_ports[i], s->hub_devices[i]);
+}
+
+static void scan_host_devices(USBHostHubState *s, const char *bus_path)
+{
+ DIR *d;
+ struct dirent *de;
+ char buf[1024];
+
+ d = opendir(bus_path);
+ if (!d)
+ return;
+ for(;;) {
+ de = readdir(d);
+ if (!de)
+ break;
+ if (de->d_name[0] != '.') {
+ snprintf(buf, sizeof(buf), "%s/%s", bus_path, de->d_name);
+ scan_host_device(s, buf);
+ }
+ }
+ closedir(d);
+}
+
+static void scan_host_buses(USBHostHubState *s)
+{
+ DIR *d;
+ struct dirent *de;
+ char buf[1024];
+
+ d = opendir(USBDEVFS_PATH);
+ if (!d)
+ return;
+ for(;;) {
+ de = readdir(d);
+ if (!de)
+ break;
+ if (isdigit(de->d_name[0])) {
+ snprintf(buf, sizeof(buf), "%s/%s", USBDEVFS_PATH, de->d_name);
+ scan_host_devices(s, buf);
+ }
+ }
+ closedir(d);
+}
+
+/* virtual hub containing the USB devices of the host */
+USBDevice *usb_host_hub_init(void)
+{
+ USBHostHubState *s;
+ s = qemu_mallocz(sizeof(USBHostHubState));
+ if (!s)
+ return NULL;
+ s->hub_dev = usb_hub_init(s->hub_ports, MAX_DEVICES);
+ if (!s->hub_dev) {
+ free(s);
+ return NULL;
+ }
+ scan_host_buses(s);
+ return s->hub_dev;
+}
+
+#else
+
+/* XXX: modify configure to compile the right host driver */
+USBDevice *usb_host_hub_init(void)
+{
+ return NULL;
+}
+
+#endif
diff --git a/vl.c b/vl.c
index 1ca0c347a9..d551a4e55c 100644
--- a/vl.c
+++ b/vl.c
@@ -153,6 +153,7 @@ CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
#ifdef TARGET_I386
int win2k_install_hack = 0;
#endif
+int usb_enabled = 0;
/***********************************************************/
/* x86 ISA bus support */
@@ -2986,6 +2987,7 @@ enum {
QEMU_OPTION_pidfile,
QEMU_OPTION_no_kqemu,
QEMU_OPTION_win2k_hack,
+ QEMU_OPTION_usb,
};
typedef struct QEMUOption {
@@ -3060,6 +3062,7 @@ const QEMUOption qemu_options[] = {
{ "full-screen", 0, QEMU_OPTION_full_screen },
{ "pidfile", HAS_ARG, QEMU_OPTION_pidfile },
{ "win2k-hack", 0, QEMU_OPTION_win2k_hack },
+ { "usb", 0, QEMU_OPTION_usb },
/* temporary options */
{ "pci", 0, QEMU_OPTION_pci },
@@ -3646,6 +3649,9 @@ int main(int argc, char **argv)
kqemu_allowed = 0;
break;
#endif
+ case QEMU_OPTION_usb:
+ usb_enabled = 1;
+ break;
}
}
}
diff --git a/vl.h b/vl.h
index 543d57972a..e1a2ec3f10 100644
--- a/vl.h
+++ b/vl.h
@@ -135,6 +135,7 @@ extern int graphic_depth;
extern const char *keyboard_layout;
extern int kqemu_allowed;
extern int win2k_install_hack;
+extern int usb_enabled;
/* XXX: make it dynamic */
#if defined (TARGET_PPC)
@@ -859,6 +860,8 @@ void adb_mouse_init(ADBBusState *bus);
extern ADBBusState adb_bus;
int cuda_init(SetIRQFunc *set_irq, void *irq_opaque, int irq);
+#include "hw/usb.h"
+
#endif /* defined(QEMU_TOOL) */
/* monitor.c */
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-23 13:44:05 +0000