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.
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@ -36,13 +36,12 @@
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#define FIXME() do { fprintf(stderr, "FIXME %s:%d\n", \
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#define FIXME() do { fprintf(stderr, "FIXME %s:%d\n", \
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__func__, __LINE__); abort(); } while (0)
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__func__, __LINE__); abort(); } while (0)
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#define MAXSLOTS 8
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#define MAXINTRS 1
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#define USB2_PORTS 4
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#define USB2_PORTS 4
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#define USB3_PORTS 4
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#define USB3_PORTS 4
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#define MAXPORTS (USB2_PORTS+USB3_PORTS)
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#define MAXPORTS (USB2_PORTS+USB3_PORTS)
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#define MAXSLOTS MAXPORTS
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#define MAXINTRS 1 /* MAXPORTS */
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#define TD_QUEUE 24
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#define TD_QUEUE 24
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@ -53,16 +52,22 @@
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#define ER_FULL_HACK
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#define ER_FULL_HACK
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#define LEN_CAP 0x40
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#define LEN_CAP 0x40
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#define OFF_OPER LEN_CAP
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#define LEN_OPER (0x400 + 0x10 * MAXPORTS)
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#define LEN_OPER (0x400 + 0x10 * MAXPORTS)
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#define OFF_RUNTIME ((OFF_OPER + LEN_OPER + 0x20) & ~0x1f)
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#define LEN_RUNTIME ((MAXINTRS + 1) * 0x20)
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#define LEN_RUNTIME (0x20 + MAXINTRS * 0x20)
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#define OFF_DOORBELL (OFF_RUNTIME + LEN_RUNTIME)
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#define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20)
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#define LEN_DOORBELL ((MAXSLOTS + 1) * 0x20)
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#define OFF_OPER LEN_CAP
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#define OFF_RUNTIME 0x1000
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#define OFF_DOORBELL 0x2000
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/* must be power of 2 */
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/* must be power of 2 */
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#define LEN_REGS 0x2000
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#define LEN_REGS 0x4000
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#if (OFF_OPER + LEN_OPER) > OFF_RUNTIME
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#error Increase OFF_RUNTIME
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#endif
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#if (OFF_RUNTIME + LEN_RUNTIME) > OFF_DOORBELL
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#error Increase OFF_DOORBELL
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#endif
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#if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS
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#if (OFF_DOORBELL + LEN_DOORBELL) > LEN_REGS
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# error Increase LEN_REGS
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# error Increase LEN_REGS
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#endif
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#endif
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