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/*
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* USB UHCI controller emulation
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*
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* Copyright (c) 2005 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h" |
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//#define DEBUG
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//#define DEBUG_PACKET
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#define UHCI_CMD_GRESET (1 << 2) |
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#define UHCI_CMD_HCRESET (1 << 1) |
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#define UHCI_CMD_RS (1 << 0) |
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|
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#define UHCI_STS_HCHALTED (1 << 5) |
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#define UHCI_STS_HCPERR (1 << 4) |
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#define UHCI_STS_HSERR (1 << 3) |
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#define UHCI_STS_RD (1 << 2) |
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#define UHCI_STS_USBERR (1 << 1) |
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#define UHCI_STS_USBINT (1 << 0) |
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|
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#define TD_CTRL_SPD (1 << 29) |
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#define TD_CTRL_ERROR_SHIFT 27 |
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#define TD_CTRL_IOS (1 << 25) |
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#define TD_CTRL_IOC (1 << 24) |
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#define TD_CTRL_ACTIVE (1 << 23) |
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#define TD_CTRL_STALL (1 << 22) |
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#define TD_CTRL_BABBLE (1 << 20) |
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#define TD_CTRL_NAK (1 << 19) |
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#define TD_CTRL_TIMEOUT (1 << 18) |
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|
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#define UHCI_PORT_RESET (1 << 9) |
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#define UHCI_PORT_LSDA (1 << 8) |
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#define UHCI_PORT_ENC (1 << 3) |
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#define UHCI_PORT_EN (1 << 2) |
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#define UHCI_PORT_CSC (1 << 1) |
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#define UHCI_PORT_CCS (1 << 0) |
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#define FRAME_TIMER_FREQ 1000 |
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#define FRAME_MAX_LOOPS 100 |
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#define NB_PORTS 2 |
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typedef struct UHCIPort { |
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USBPort port; |
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uint16_t ctrl; |
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} UHCIPort; |
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typedef struct UHCIState { |
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PCIDevice dev; |
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uint16_t cmd; /* cmd register */
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uint16_t status; |
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uint16_t intr; /* interrupt enable register */
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uint16_t frnum; /* frame number */
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uint32_t fl_base_addr; /* frame list base address */
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uint8_t sof_timing; |
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uint8_t status2; /* bit 0 and 1 are used to generate UHCI_STS_USBINT */
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QEMUTimer *frame_timer; |
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UHCIPort ports[NB_PORTS]; |
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} UHCIState; |
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typedef struct UHCI_TD { |
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uint32_t link; |
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uint32_t ctrl; /* see TD_CTRL_xxx */
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uint32_t token; |
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uint32_t buffer; |
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} UHCI_TD; |
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typedef struct UHCI_QH { |
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uint32_t link; |
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uint32_t el_link; |
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} UHCI_QH; |
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|
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static void uhci_attach(USBPort *port1, USBDevice *dev); |
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static void uhci_update_irq(UHCIState *s) |
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{ |
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int level;
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if (((s->status2 & 1) && (s->intr & (1 << 2))) || |
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((s->status2 & 2) && (s->intr & (1 << 3))) || |
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((s->status & UHCI_STS_USBERR) && (s->intr & (1 << 0))) || |
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((s->status & UHCI_STS_RD) && (s->intr & (1 << 1))) || |
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(s->status & UHCI_STS_HSERR) || |
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(s->status & UHCI_STS_HCPERR)) { |
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level = 1;
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} else {
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level = 0;
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} |
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pci_set_irq(&s->dev, 3, level);
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} |
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static void uhci_reset(UHCIState *s) |
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{ |
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uint8_t *pci_conf; |
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int i;
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UHCIPort *port; |
116 |
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pci_conf = s->dev.config; |
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pci_conf[0x6a] = 0x01; /* usb clock */ |
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pci_conf[0x6b] = 0x00; |
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s->cmd = 0;
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s->status = 0;
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s->status2 = 0;
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s->intr = 0;
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s->fl_base_addr = 0;
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s->sof_timing = 64;
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for(i = 0; i < NB_PORTS; i++) { |
128 |
port = &s->ports[i]; |
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port->ctrl = 0x0080;
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if (port->port.dev)
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uhci_attach(&port->port, port->port.dev); |
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} |
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} |
134 |
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static void uhci_ioport_writeb(void *opaque, uint32_t addr, uint32_t val) |
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{ |
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UHCIState *s = opaque; |
138 |
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addr &= 0x1f;
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switch(addr) {
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case 0x0c: |
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s->sof_timing = val; |
143 |
break;
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} |
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} |
146 |
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static uint32_t uhci_ioport_readb(void *opaque, uint32_t addr) |
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{ |
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UHCIState *s = opaque; |
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uint32_t val; |
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addr &= 0x1f;
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switch(addr) {
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case 0x0c: |
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val = s->sof_timing; |
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break;
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default:
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val = 0xff;
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break;
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} |
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return val;
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} |
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static void uhci_ioport_writew(void *opaque, uint32_t addr, uint32_t val) |
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{ |
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UHCIState *s = opaque; |
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addr &= 0x1f;
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#ifdef DEBUG
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printf("uhci writew port=0x%04x val=0x%04x\n", addr, val);
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#endif
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switch(addr) {
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case 0x00: |
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if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) {
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/* start frame processing */
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qemu_mod_timer(s->frame_timer, qemu_get_clock(vm_clock)); |
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s->status &= ~UHCI_STS_HCHALTED; |
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} else if (!(val & UHCI_CMD_RS)) { |
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s->status |= UHCI_STS_HCHALTED; |
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} |
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if (val & UHCI_CMD_GRESET) {
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UHCIPort *port; |
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USBDevice *dev; |
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int i;
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/* send reset on the USB bus */
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for(i = 0; i < NB_PORTS; i++) { |
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port = &s->ports[i]; |
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dev = port->port.dev; |
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if (dev) {
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dev->handle_packet(dev, |
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USB_MSG_RESET, 0, 0, NULL, 0); |
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} |
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} |
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uhci_reset(s); |
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return;
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} |
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if (val & UHCI_CMD_HCRESET) {
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uhci_reset(s); |
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return;
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} |
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s->cmd = val; |
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break;
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case 0x02: |
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s->status &= ~val; |
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/* XXX: the chip spec is not coherent, so we add a hidden
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register to distinguish between IOC and SPD */
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if (val & UHCI_STS_USBINT)
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s->status2 = 0;
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uhci_update_irq(s); |
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break;
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case 0x04: |
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s->intr = val; |
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uhci_update_irq(s); |
215 |
break;
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case 0x06: |
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if (s->status & UHCI_STS_HCHALTED)
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s->frnum = val & 0x7ff;
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break;
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case 0x10 ... 0x1f: |
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{ |
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UHCIPort *port; |
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USBDevice *dev; |
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int n;
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n = (addr >> 1) & 7; |
227 |
if (n >= NB_PORTS)
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return;
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port = &s->ports[n]; |
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dev = port->port.dev; |
231 |
if (dev) {
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/* port reset */
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if ( (val & UHCI_PORT_RESET) &&
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!(port->ctrl & UHCI_PORT_RESET) ) { |
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dev->handle_packet(dev, |
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USB_MSG_RESET, 0, 0, NULL, 0); |
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} |
238 |
} |
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port->ctrl = (port->ctrl & 0x01fb) | (val & ~0x01fb); |
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/* some bits are reset when a '1' is written to them */
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port->ctrl &= ~(val & 0x000a);
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} |
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break;
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} |
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} |
246 |
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static uint32_t uhci_ioport_readw(void *opaque, uint32_t addr) |
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{ |
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UHCIState *s = opaque; |
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uint32_t val; |
251 |
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addr &= 0x1f;
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switch(addr) {
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case 0x00: |
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val = s->cmd; |
256 |
break;
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case 0x02: |
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val = s->status; |
259 |
break;
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case 0x04: |
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val = s->intr; |
262 |
break;
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case 0x06: |
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val = s->frnum; |
265 |
break;
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case 0x10 ... 0x1f: |
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{ |
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UHCIPort *port; |
269 |
int n;
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n = (addr >> 1) & 7; |
271 |
if (n >= NB_PORTS)
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goto read_default;
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port = &s->ports[n]; |
274 |
val = port->ctrl; |
275 |
} |
276 |
break;
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default:
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read_default:
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val = 0xff7f; /* disabled port */ |
280 |
break;
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} |
282 |
#ifdef DEBUG
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printf("uhci readw port=0x%04x val=0x%04x\n", addr, val);
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#endif
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return val;
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} |
287 |
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static void uhci_ioport_writel(void *opaque, uint32_t addr, uint32_t val) |
289 |
{ |
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UHCIState *s = opaque; |
291 |
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addr &= 0x1f;
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#ifdef DEBUG
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printf("uhci writel port=0x%04x val=0x%08x\n", addr, val);
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#endif
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switch(addr) {
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297 |
case 0x08: |
298 |
s->fl_base_addr = val & ~0xfff;
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break;
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} |
301 |
} |
302 |
|
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static uint32_t uhci_ioport_readl(void *opaque, uint32_t addr) |
304 |
{ |
305 |
UHCIState *s = opaque; |
306 |
uint32_t val; |
307 |
|
308 |
addr &= 0x1f;
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switch(addr) {
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310 |
case 0x08: |
311 |
val = s->fl_base_addr; |
312 |
break;
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313 |
default:
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314 |
val = 0xffffffff;
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break;
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316 |
} |
317 |
return val;
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318 |
} |
319 |
|
320 |
static void uhci_attach(USBPort *port1, USBDevice *dev) |
321 |
{ |
322 |
UHCIState *s = port1->opaque; |
323 |
UHCIPort *port = &s->ports[port1->index]; |
324 |
|
325 |
if (dev) {
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326 |
if (port->port.dev) {
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327 |
usb_attach(port1, NULL);
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328 |
} |
329 |
/* set connect status */
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330 |
port->ctrl |= UHCI_PORT_CCS | UHCI_PORT_CSC; |
331 |
|
332 |
/* update speed */
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333 |
if (dev->speed == USB_SPEED_LOW)
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334 |
port->ctrl |= UHCI_PORT_LSDA; |
335 |
else
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336 |
port->ctrl &= ~UHCI_PORT_LSDA; |
337 |
port->port.dev = dev; |
338 |
/* send the attach message */
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339 |
dev->handle_packet(dev, |
340 |
USB_MSG_ATTACH, 0, 0, NULL, 0); |
341 |
} else {
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342 |
/* set connect status */
|
343 |
if (port->ctrl & UHCI_PORT_CCS) {
|
344 |
port->ctrl &= ~UHCI_PORT_CCS; |
345 |
port->ctrl |= UHCI_PORT_CSC; |
346 |
} |
347 |
/* disable port */
|
348 |
if (port->ctrl & UHCI_PORT_EN) {
|
349 |
port->ctrl &= ~UHCI_PORT_EN; |
350 |
port->ctrl |= UHCI_PORT_ENC; |
351 |
} |
352 |
dev = port->port.dev; |
353 |
if (dev) {
|
354 |
/* send the detach message */
|
355 |
dev->handle_packet(dev, |
356 |
USB_MSG_DETACH, 0, 0, NULL, 0); |
357 |
} |
358 |
port->port.dev = NULL;
|
359 |
} |
360 |
} |
361 |
|
362 |
static int uhci_broadcast_packet(UHCIState *s, uint8_t pid, |
363 |
uint8_t devaddr, uint8_t devep, |
364 |
uint8_t *data, int len)
|
365 |
{ |
366 |
UHCIPort *port; |
367 |
USBDevice *dev; |
368 |
int i, ret;
|
369 |
|
370 |
#ifdef DEBUG_PACKET
|
371 |
{ |
372 |
const char *pidstr; |
373 |
switch(pid) {
|
374 |
case USB_TOKEN_SETUP: pidstr = "SETUP"; break; |
375 |
case USB_TOKEN_IN: pidstr = "IN"; break; |
376 |
case USB_TOKEN_OUT: pidstr = "OUT"; break; |
377 |
default: pidstr = "?"; break; |
378 |
} |
379 |
printf("frame %d: pid=%s addr=0x%02x ep=%d len=%d\n",
|
380 |
s->frnum, pidstr, devaddr, devep, len); |
381 |
if (pid != USB_TOKEN_IN) {
|
382 |
printf(" data_out=");
|
383 |
for(i = 0; i < len; i++) { |
384 |
printf(" %02x", data[i]);
|
385 |
} |
386 |
printf("\n");
|
387 |
} |
388 |
} |
389 |
#endif
|
390 |
for(i = 0; i < NB_PORTS; i++) { |
391 |
port = &s->ports[i]; |
392 |
dev = port->port.dev; |
393 |
if (dev && (port->ctrl & UHCI_PORT_EN)) {
|
394 |
ret = dev->handle_packet(dev, pid, |
395 |
devaddr, devep, |
396 |
data, len); |
397 |
if (ret != USB_RET_NODEV) {
|
398 |
#ifdef DEBUG_PACKET
|
399 |
{ |
400 |
printf(" ret=%d ", ret);
|
401 |
if (pid == USB_TOKEN_IN && ret > 0) { |
402 |
printf("data_in=");
|
403 |
for(i = 0; i < ret; i++) { |
404 |
printf(" %02x", data[i]);
|
405 |
} |
406 |
} |
407 |
printf("\n");
|
408 |
} |
409 |
#endif
|
410 |
return ret;
|
411 |
} |
412 |
} |
413 |
} |
414 |
return USB_RET_NODEV;
|
415 |
} |
416 |
|
417 |
/* return -1 if fatal error (frame must be stopped)
|
418 |
0 if TD successful
|
419 |
1 if TD unsuccessful or inactive
|
420 |
*/
|
421 |
static int uhci_handle_td(UHCIState *s, UHCI_TD *td, int *int_mask) |
422 |
{ |
423 |
uint8_t pid; |
424 |
uint8_t buf[1280];
|
425 |
int len, max_len, err, ret;
|
426 |
|
427 |
if (td->ctrl & TD_CTRL_IOC) {
|
428 |
*int_mask |= 0x01;
|
429 |
} |
430 |
|
431 |
if (!(td->ctrl & TD_CTRL_ACTIVE))
|
432 |
return 1; |
433 |
|
434 |
/* TD is active */
|
435 |
max_len = ((td->token >> 21) + 1) & 0x7ff; |
436 |
pid = td->token & 0xff;
|
437 |
switch(pid) {
|
438 |
case USB_TOKEN_OUT:
|
439 |
case USB_TOKEN_SETUP:
|
440 |
cpu_physical_memory_read(td->buffer, buf, max_len); |
441 |
ret = uhci_broadcast_packet(s, pid, |
442 |
(td->token >> 8) & 0x7f, |
443 |
(td->token >> 15) & 0xf, |
444 |
buf, max_len); |
445 |
len = max_len; |
446 |
break;
|
447 |
case USB_TOKEN_IN:
|
448 |
ret = uhci_broadcast_packet(s, pid, |
449 |
(td->token >> 8) & 0x7f, |
450 |
(td->token >> 15) & 0xf, |
451 |
buf, max_len); |
452 |
if (ret >= 0) { |
453 |
len = ret; |
454 |
if (len > max_len) {
|
455 |
len = max_len; |
456 |
ret = USB_RET_BABBLE; |
457 |
} |
458 |
if (len > 0) { |
459 |
/* write the data back */
|
460 |
cpu_physical_memory_write(td->buffer, buf, len); |
461 |
} |
462 |
} else {
|
463 |
len = 0;
|
464 |
} |
465 |
break;
|
466 |
default:
|
467 |
/* invalid pid : frame interrupted */
|
468 |
s->status |= UHCI_STS_HCPERR; |
469 |
uhci_update_irq(s); |
470 |
return -1; |
471 |
} |
472 |
if (td->ctrl & TD_CTRL_IOS)
|
473 |
td->ctrl &= ~TD_CTRL_ACTIVE; |
474 |
if (ret >= 0) { |
475 |
td->ctrl = (td->ctrl & ~0x7ff) | ((len - 1) & 0x7ff); |
476 |
td->ctrl &= ~TD_CTRL_ACTIVE; |
477 |
if (pid == USB_TOKEN_IN &&
|
478 |
(td->ctrl & TD_CTRL_SPD) && |
479 |
len < max_len) { |
480 |
*int_mask |= 0x02;
|
481 |
/* short packet: do not update QH */
|
482 |
return 1; |
483 |
} else {
|
484 |
/* success */
|
485 |
return 0; |
486 |
} |
487 |
} else {
|
488 |
switch(ret) {
|
489 |
default:
|
490 |
case USB_RET_NODEV:
|
491 |
do_timeout:
|
492 |
td->ctrl |= TD_CTRL_TIMEOUT; |
493 |
err = (td->ctrl >> TD_CTRL_ERROR_SHIFT) & 3;
|
494 |
if (err != 0) { |
495 |
err--; |
496 |
if (err == 0) { |
497 |
td->ctrl &= ~TD_CTRL_ACTIVE; |
498 |
s->status |= UHCI_STS_USBERR; |
499 |
uhci_update_irq(s); |
500 |
} |
501 |
} |
502 |
td->ctrl = (td->ctrl & ~(3 << TD_CTRL_ERROR_SHIFT)) |
|
503 |
(err << TD_CTRL_ERROR_SHIFT); |
504 |
return 1; |
505 |
case USB_RET_NAK:
|
506 |
td->ctrl |= TD_CTRL_NAK; |
507 |
if (pid == USB_TOKEN_SETUP)
|
508 |
goto do_timeout;
|
509 |
return 1; |
510 |
case USB_RET_STALL:
|
511 |
td->ctrl |= TD_CTRL_STALL; |
512 |
td->ctrl &= ~TD_CTRL_ACTIVE; |
513 |
return 1; |
514 |
case USB_RET_BABBLE:
|
515 |
td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL; |
516 |
td->ctrl &= ~TD_CTRL_ACTIVE; |
517 |
/* frame interrupted */
|
518 |
return -1; |
519 |
} |
520 |
} |
521 |
} |
522 |
|
523 |
static void uhci_frame_timer(void *opaque) |
524 |
{ |
525 |
UHCIState *s = opaque; |
526 |
int64_t expire_time; |
527 |
uint32_t frame_addr, link, old_td_ctrl, val; |
528 |
int int_mask, cnt, ret;
|
529 |
UHCI_TD td; |
530 |
UHCI_QH qh; |
531 |
|
532 |
if (!(s->cmd & UHCI_CMD_RS)) {
|
533 |
qemu_del_timer(s->frame_timer); |
534 |
/* set hchalted bit in status - UHCI11D 2.1.2 */
|
535 |
s->status |= UHCI_STS_HCHALTED; |
536 |
return;
|
537 |
} |
538 |
frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2); |
539 |
cpu_physical_memory_read(frame_addr, (uint8_t *)&link, 4);
|
540 |
le32_to_cpus(&link); |
541 |
int_mask = 0;
|
542 |
cnt = FRAME_MAX_LOOPS; |
543 |
while ((link & 1) == 0) { |
544 |
if (--cnt == 0) |
545 |
break;
|
546 |
/* valid frame */
|
547 |
if (link & 2) { |
548 |
/* QH */
|
549 |
cpu_physical_memory_read(link & ~0xf, (uint8_t *)&qh, sizeof(qh)); |
550 |
le32_to_cpus(&qh.link); |
551 |
le32_to_cpus(&qh.el_link); |
552 |
depth_first:
|
553 |
if (qh.el_link & 1) { |
554 |
/* no element : go to next entry */
|
555 |
link = qh.link; |
556 |
} else if (qh.el_link & 2) { |
557 |
/* QH */
|
558 |
link = qh.el_link; |
559 |
} else {
|
560 |
/* TD */
|
561 |
if (--cnt == 0) |
562 |
break;
|
563 |
cpu_physical_memory_read(qh.el_link & ~0xf,
|
564 |
(uint8_t *)&td, sizeof(td));
|
565 |
le32_to_cpus(&td.link); |
566 |
le32_to_cpus(&td.ctrl); |
567 |
le32_to_cpus(&td.token); |
568 |
le32_to_cpus(&td.buffer); |
569 |
old_td_ctrl = td.ctrl; |
570 |
ret = uhci_handle_td(s, &td, &int_mask); |
571 |
/* update the status bits of the TD */
|
572 |
if (old_td_ctrl != td.ctrl) {
|
573 |
val = cpu_to_le32(td.ctrl); |
574 |
cpu_physical_memory_write((qh.el_link & ~0xf) + 4, |
575 |
(const uint8_t *)&val,
|
576 |
sizeof(val));
|
577 |
} |
578 |
if (ret < 0) |
579 |
break; /* interrupted frame */ |
580 |
if (ret == 0) { |
581 |
/* update qh element link */
|
582 |
qh.el_link = td.link; |
583 |
val = cpu_to_le32(qh.el_link); |
584 |
cpu_physical_memory_write((link & ~0xf) + 4, |
585 |
(const uint8_t *)&val,
|
586 |
sizeof(val));
|
587 |
if (qh.el_link & 4) { |
588 |
/* depth first */
|
589 |
goto depth_first;
|
590 |
} |
591 |
} |
592 |
/* go to next entry */
|
593 |
link = qh.link; |
594 |
} |
595 |
} else {
|
596 |
/* TD */
|
597 |
cpu_physical_memory_read(link & ~0xf, (uint8_t *)&td, sizeof(td)); |
598 |
le32_to_cpus(&td.link); |
599 |
le32_to_cpus(&td.ctrl); |
600 |
le32_to_cpus(&td.token); |
601 |
le32_to_cpus(&td.buffer); |
602 |
old_td_ctrl = td.ctrl; |
603 |
ret = uhci_handle_td(s, &td, &int_mask); |
604 |
/* update the status bits of the TD */
|
605 |
if (old_td_ctrl != td.ctrl) {
|
606 |
val = cpu_to_le32(td.ctrl); |
607 |
cpu_physical_memory_write((link & ~0xf) + 4, |
608 |
(const uint8_t *)&val,
|
609 |
sizeof(val));
|
610 |
} |
611 |
if (ret < 0) |
612 |
break; /* interrupted frame */ |
613 |
link = td.link; |
614 |
} |
615 |
} |
616 |
s->frnum = (s->frnum + 1) & 0x7ff; |
617 |
if (int_mask) {
|
618 |
s->status2 |= int_mask; |
619 |
s->status |= UHCI_STS_USBINT; |
620 |
uhci_update_irq(s); |
621 |
} |
622 |
/* prepare the timer for the next frame */
|
623 |
expire_time = qemu_get_clock(vm_clock) + |
624 |
(ticks_per_sec / FRAME_TIMER_FREQ); |
625 |
qemu_mod_timer(s->frame_timer, expire_time); |
626 |
} |
627 |
|
628 |
static void uhci_map(PCIDevice *pci_dev, int region_num, |
629 |
uint32_t addr, uint32_t size, int type)
|
630 |
{ |
631 |
UHCIState *s = (UHCIState *)pci_dev; |
632 |
|
633 |
register_ioport_write(addr, 32, 2, uhci_ioport_writew, s); |
634 |
register_ioport_read(addr, 32, 2, uhci_ioport_readw, s); |
635 |
register_ioport_write(addr, 32, 4, uhci_ioport_writel, s); |
636 |
register_ioport_read(addr, 32, 4, uhci_ioport_readl, s); |
637 |
register_ioport_write(addr, 32, 1, uhci_ioport_writeb, s); |
638 |
register_ioport_read(addr, 32, 1, uhci_ioport_readb, s); |
639 |
} |
640 |
|
641 |
void usb_uhci_init(PCIBus *bus, int devfn) |
642 |
{ |
643 |
UHCIState *s; |
644 |
uint8_t *pci_conf; |
645 |
int i;
|
646 |
|
647 |
s = (UHCIState *)pci_register_device(bus, |
648 |
"USB-UHCI", sizeof(UHCIState), |
649 |
devfn, NULL, NULL); |
650 |
pci_conf = s->dev.config; |
651 |
pci_conf[0x00] = 0x86; |
652 |
pci_conf[0x01] = 0x80; |
653 |
pci_conf[0x02] = 0x20; |
654 |
pci_conf[0x03] = 0x70; |
655 |
pci_conf[0x08] = 0x01; // revision number |
656 |
pci_conf[0x09] = 0x00; |
657 |
pci_conf[0x0a] = 0x03; |
658 |
pci_conf[0x0b] = 0x0c; |
659 |
pci_conf[0x0e] = 0x00; // header_type |
660 |
pci_conf[0x3d] = 4; // interrupt pin 3 |
661 |
pci_conf[0x60] = 0x10; // release number |
662 |
|
663 |
for(i = 0; i < NB_PORTS; i++) { |
664 |
qemu_register_usb_port(&s->ports[i].port, s, i, uhci_attach); |
665 |
} |
666 |
s->frame_timer = qemu_new_timer(vm_clock, uhci_frame_timer, s); |
667 |
|
668 |
uhci_reset(s); |
669 |
|
670 |
/* Use region 4 for consistency with real hardware. BSD guests seem
|
671 |
to rely on this. */
|
672 |
pci_register_io_region(&s->dev, 4, 0x20, |
673 |
PCI_ADDRESS_SPACE_IO, uhci_map); |
674 |
} |