diff options
| author |   Gerd Hoffmann <kraxel@redhat.com> | 2012-08-23 13:26:25 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2012-09-11 07:43:01 +0200 |
| commit | 106b214c4fbba80699b32b63020432cbd1cf95db (patch) | |
| tree | dce321206c86b92289181e5e3049c62f1202e955 | |
| parent | 8e9f18b6db1cd67f0a7efd7d0285bee489445197 (diff) | |
xhci: update register layout
Change the register layout to be a bit more sparse and also not depend
on the number of ports. Useful when for making the number of ports
runtime-configurable.
| -rw-r--r-- | hw/usb/hcd-xhci.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 1920edae7..92ee62943 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -36,13 +36,12 @@ #define FIXME() do { fprintf(stderr, "FIXME %s:%d\n", \ __func__, __LINE__); abort(); } while (0) -#define MAXSLOTS 8 -#define MAXINTRS 1 - #define USB2_PORTS 4 #define USB3_PORTS 4 #define MAXPORTS (USB2_PORTS+USB3_PORTS) +#define MAXSLOTS MAXPORTS +#define MAXINTRS 1 /* MAXPORTS */ #define TD_QUEUE 24 @@ -53,16 +52,22 @@ #define ER_FULL_HACK #define LEN_CAP 0x40 -#define OFF_OPER LEN_CAP #define LEN_OPER (0x400 + 0x10 * MAXPORTS) -#define OFF_RUNTIME ((OFF_OPER + LEN_OPER + 0x20) & ~0x1f) -#define LEN_RUNTIME (0x20 + MAXINTRS * 0x20) -#define OFF_DOORBELL (OFF_RUNTIME + LEN_RUNTIME) +#define LEN_RUNTIME ((MAXINTRS + 1) * 0x20) #define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20) +#define OFF_OPER LEN_CAP +#define OFF_RUNTIME 0x1000 +#define OFF_DOORBELL 0x2000 /* must be power of 2 */ -#define LEN_REGS 0x2000 +#define LEN_REGS 0x4000 +#if (OFF_OPER + LEN_OPER) > OFF_RUNTIME +#error Increase OFF_RUNTIME +#endif +#if (OFF_RUNTIME + LEN_RUNTIME) > OFF_DOORBELL +#error Increase OFF_DOORBELL +#endif #if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS # error Increase LEN_REGS #endif |