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xhci: trace: mmio reads+writes 

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-05-11 12:49:31 +02:00
parent 64619739c4
commit 2d754a10e4
2 changed files with 117 additions and 58 deletions
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163
hw/usb/hcd-xhci.c
View File

@ -23,6 +23,7 @@
#include "hw/usb.h"
#include "hw/pci.h"
#include "hw/msi.h"
#include "trace.h"
//#define DEBUG_XHCI
//#define DEBUG_DATA
@ -2301,7 +2302,7 @@ static void xhci_reset(DeviceState *dev)
XHCIState *xhci = DO_UPCAST(XHCIState, pci_dev.qdev, dev);
int i;
DPRINTF("xhci: full reset\n");
trace_usb_xhci_reset();
if (!(xhci->usbsts & USBSTS_HCH)) {
fprintf(stderr, "xhci: reset while running!\n");
}
@ -2342,77 +2343,98 @@ static void xhci_reset(DeviceState *dev)
static uint32_t xhci_cap_read(XHCIState *xhci, uint32_t reg)
{
DPRINTF("xhci_cap_read(0x%x)\n", reg);
uint32_t ret;
switch (reg) {
case 0x00: /* HCIVERSION, CAPLENGTH */
return 0x01000000 | LEN_CAP;
ret = 0x01000000 | LEN_CAP;
break;
case 0x04: /* HCSPARAMS 1 */
return (MAXPORTS<<24) | (MAXINTRS<<8) | MAXSLOTS;
ret = (MAXPORTS<<24) | (MAXINTRS<<8) | MAXSLOTS;
break;
case 0x08: /* HCSPARAMS 2 */
return 0x0000000f;
ret = 0x0000000f;
break;
case 0x0c: /* HCSPARAMS 3 */
return 0x00000000;
ret = 0x00000000;
break;
case 0x10: /* HCCPARAMS */
#if TARGET_PHYS_ADDR_BITS > 32
return 0x00081001;
#else
return 0x00081000;
#endif
if (sizeof(dma_addr_t) == 4) {
ret = 0x00081000;
} else {
ret = 0x00081001;
}
break;
case 0x14: /* DBOFF */
return OFF_DOORBELL;
ret = OFF_DOORBELL;
break;
case 0x18: /* RTSOFF */
return OFF_RUNTIME;
ret = OFF_RUNTIME;
break;
/* extended capabilities */
case 0x20: /* Supported Protocol:00 */
#if USB3_PORTS > 0
return 0x02000402; /* USB 2.0 */
#else
return 0x02000002; /* USB 2.0 */
#endif
ret = 0x02000402; /* USB 2.0 */
break;
case 0x24: /* Supported Protocol:04 */
return 0x20425455; /* "USB " */
ret = 0x20425455; /* "USB " */
break;
case 0x28: /* Supported Protocol:08 */
return 0x00000001 | (USB2_PORTS<<8);
ret = 0x00000001 | (USB2_PORTS<<8);
break;
case 0x2c: /* Supported Protocol:0c */
return 0x00000000; /* reserved */
#if USB3_PORTS > 0
ret = 0x00000000; /* reserved */
break;
case 0x30: /* Supported Protocol:00 */
return 0x03000002; /* USB 3.0 */
ret = 0x03000002; /* USB 3.0 */
break;
case 0x34: /* Supported Protocol:04 */
return 0x20425455; /* "USB " */
ret = 0x20425455; /* "USB " */
break;
case 0x38: /* Supported Protocol:08 */
return 0x00000000 | (USB2_PORTS+1) | (USB3_PORTS<<8);
ret = 0x00000000 | (USB2_PORTS+1) | (USB3_PORTS<<8);
break;
case 0x3c: /* Supported Protocol:0c */
return 0x00000000; /* reserved */
#endif
ret = 0x00000000; /* reserved */
break;
default:
fprintf(stderr, "xhci_cap_read: reg %d unimplemented\n", reg);
ret = 0;
}
return 0;
trace_usb_xhci_cap_read(reg, ret);
return ret;
}
static uint32_t xhci_port_read(XHCIState *xhci, uint32_t reg)
{
uint32_t port = reg >> 4;
uint32_t ret;
if (port >= MAXPORTS) {
fprintf(stderr, "xhci_port_read: port %d out of bounds\n", port);
return 0;
ret = 0;
goto out;
}
switch (reg & 0xf) {
case 0x00: /* PORTSC */
return xhci->ports[port].portsc;
ret = xhci->ports[port].portsc;
break;
case 0x04: /* PORTPMSC */
case 0x08: /* PORTLI */
return 0;
ret = 0;
break;
case 0x0c: /* reserved */
default:
fprintf(stderr, "xhci_port_read (port %d): reg 0x%x unimplemented\n",
port, reg);
return 0;
ret = 0;
}
out:
trace_usb_xhci_port_read(port, reg & 0x0f, ret);
return ret;
}
static void xhci_port_write(XHCIState *xhci, uint32_t reg, uint32_t val)
@ -2420,6 +2442,8 @@ static void xhci_port_write(XHCIState *xhci, uint32_t reg, uint32_t val)
uint32_t port = reg >> 4;
uint32_t portsc;
trace_usb_xhci_port_write(port, reg & 0x0f, val);
if (port >= MAXPORTS) {
fprintf(stderr, "xhci_port_read: port %d out of bounds\n", port);
return;
@ -2457,7 +2481,7 @@ static void xhci_port_write(XHCIState *xhci, uint32_t reg, uint32_t val)
static uint32_t xhci_oper_read(XHCIState *xhci, uint32_t reg)
{
DPRINTF("xhci_oper_read(0x%x)\n", reg);
uint32_t ret;
if (reg >= 0x400) {
return xhci_port_read(xhci, reg - 0x400);
@ -2465,38 +2489,50 @@ static uint32_t xhci_oper_read(XHCIState *xhci, uint32_t reg)
switch (reg) {
case 0x00: /* USBCMD */
return xhci->usbcmd;
ret = xhci->usbcmd;
break;
case 0x04: /* USBSTS */
return xhci->usbsts;
ret = xhci->usbsts;
break;
case 0x08: /* PAGESIZE */
return 1; /* 4KiB */
ret = 1; /* 4KiB */
break;
case 0x14: /* DNCTRL */
return xhci->dnctrl;
ret = xhci->dnctrl;
break;
case 0x18: /* CRCR low */
return xhci->crcr_low & ~0xe;
ret = xhci->crcr_low & ~0xe;
break;
case 0x1c: /* CRCR high */
return xhci->crcr_high;
ret = xhci->crcr_high;
break;
case 0x30: /* DCBAAP low */
return xhci->dcbaap_low;
ret = xhci->dcbaap_low;
break;
case 0x34: /* DCBAAP high */
return xhci->dcbaap_high;
ret = xhci->dcbaap_high;
break;
case 0x38: /* CONFIG */
return xhci->config;
ret = xhci->config;
break;
default:
fprintf(stderr, "xhci_oper_read: reg 0x%x unimplemented\n", reg);
ret = 0;
}
return 0;
trace_usb_xhci_oper_read(reg, ret);
return ret;
}
static void xhci_oper_write(XHCIState *xhci, uint32_t reg, uint32_t val)
{
DPRINTF("xhci_oper_write(0x%x, 0x%08x)\n", reg, val);
if (reg >= 0x400) {
xhci_port_write(xhci, reg - 0x400, val);
return;
}
trace_usb_xhci_oper_write(reg, val);
switch (reg) {
case 0x00: /* USBCMD */
if ((val & USBCMD_RS) && !(xhci->usbcmd & USBCMD_RS)) {
@ -2552,35 +2588,46 @@ static void xhci_oper_write(XHCIState *xhci, uint32_t reg, uint32_t val)
static uint32_t xhci_runtime_read(XHCIState *xhci, uint32_t reg)
{
DPRINTF("xhci_runtime_read(0x%x)\n", reg);
uint32_t ret;
switch (reg) {
case 0x00: /* MFINDEX */
fprintf(stderr, "xhci_runtime_read: MFINDEX not yet implemented\n");
return xhci->mfindex;
ret = xhci->mfindex;
break;
case 0x20: /* IMAN */
return xhci->iman;
ret = xhci->iman;
break;
case 0x24: /* IMOD */
return xhci->imod;
ret = xhci->imod;
break;
case 0x28: /* ERSTSZ */
return xhci->erstsz;
ret = xhci->erstsz;
break;
case 0x30: /* ERSTBA low */
return xhci->erstba_low;
ret = xhci->erstba_low;
break;
case 0x34: /* ERSTBA high */
return xhci->erstba_high;
ret = xhci->erstba_high;
break;
case 0x38: /* ERDP low */
return xhci->erdp_low;
ret = xhci->erdp_low;
break;
case 0x3c: /* ERDP high */
return xhci->erdp_high;
ret = xhci->erdp_high;
break;
default:
fprintf(stderr, "xhci_runtime_read: reg 0x%x unimplemented\n", reg);
ret = 0;
}
return 0;
trace_usb_xhci_runtime_read(reg, ret);
return ret;
}
static void xhci_runtime_write(XHCIState *xhci, uint32_t reg, uint32_t val)
{
DPRINTF("xhci_runtime_write(0x%x, 0x%08x)\n", reg, val);
trace_usb_xhci_runtime_read(reg, val);
switch (reg) {
case 0x20: /* IMAN */
@ -2623,14 +2670,14 @@ static void xhci_runtime_write(XHCIState *xhci, uint32_t reg, uint32_t val)
static uint32_t xhci_doorbell_read(XHCIState *xhci, uint32_t reg)
{
DPRINTF("xhci_doorbell_read(0x%x)\n", reg);
/* doorbells always read as 0 */
trace_usb_xhci_doorbell_read(reg, 0);
return 0;
}
static void xhci_doorbell_write(XHCIState *xhci, uint32_t reg, uint32_t val)
{
DPRINTF("xhci_doorbell_write(0x%x, 0x%08x)\n", reg, val);
trace_usb_xhci_doorbell_write(reg, val);
if (!xhci_running(xhci)) {
fprintf(stderr, "xhci: wrote doorbell while xHC stopped or paused\n");

12
trace-events
View File

@ -289,6 +289,18 @@ usb_uhci_td_nextqh(uint32_t qh, uint32_t td) "qh 0x%x, td 0x%x"
usb_uhci_td_async(uint32_t qh, uint32_t td) "qh 0x%x, td 0x%x"
usb_uhci_td_complete(uint32_t qh, uint32_t td) "qh 0x%x, td 0x%x"
# hw/usb/hcd-xhci.c
usb_xhci_reset(void) "=== RESET ==="
usb_xhci_cap_read(uint32_t off, uint32_t val) "off 0x%04x, ret 0x%08x"
usb_xhci_oper_read(uint32_t off, uint32_t val) "off 0x%04x, ret 0x%08x"
usb_xhci_port_read(uint32_t port, uint32_t off, uint32_t val) "port %d, off 0x%04x, ret 0x%08x"
usb_xhci_runtime_read(uint32_t off, uint32_t val) "off 0x%04x, ret 0x%08x"
usb_xhci_doorbell_read(uint32_t off, uint32_t val) "off 0x%04x, ret 0x%08x"
usb_xhci_oper_write(uint32_t off, uint32_t val) "off 0x%04x, val 0x%08x"
usb_xhci_port_write(uint32_t port, uint32_t off, uint32_t val) "port %d, off 0x%04x, val 0x%08x"
usb_xhci_runtime_write(uint32_t off, uint32_t val) "off 0x%04x, val 0x%08x"
usb_xhci_doorbell_write(uint32_t off, uint32_t val) "off 0x%04x, val 0x%08x"
# hw/usb/desc.c
usb_desc_device(int addr, int len, int ret) "dev %d query device, len %d, ret %d"
usb_desc_device_qualifier(int addr, int len, int ret) "dev %d query device qualifier, len %d, ret %d"