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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.
This commit is contained in:
Gerd Hoffmann 2012-08-23 13:26:25 +02:00
parent 8e9f18b6db
commit 106b214c4f
1 changed files with 13 additions and 8 deletions
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21
hw/usb/hcd-xhci.c
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@ -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