diff options
Diffstat (limited to 'sys/dev/ic')
| -rw-r--r-- | sys/dev/ic/rl2reg.h | 44 |
1 files changed, 14 insertions, 30 deletions
diff --git a/sys/dev/ic/rl2reg.h b/sys/dev/ic/rl2reg.h index a03f68aa9c2..e311609e69e 100644 --- a/sys/dev/ic/rl2reg.h +++ b/sys/dev/ic/rl2reg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: rl2reg.h,v 1.1 1999/06/21 23:21:47 d Exp $ */ +/* $OpenBSD: rl2reg.h,v 1.2 1999/07/14 03:52:55 d Exp $ */ /* * David Leonard <d@openbsd.org>, 1999. Public Domain. * @@ -37,8 +37,7 @@ * +-------+-------+-------+-------+-------+-------+-------+-------+ */ -/* Register offsets */ - +/* Register offsets. */ #define RL2_REG_DATA 0 #define RL2_REG_STATUS 2 #define RL2_REG_CONTROL 4 @@ -47,7 +46,7 @@ #define RL2_NPORTS 8 /* - * A short delay is needed (16ms?) after register writes. + * A short delay is needed (16ms?) after register writes on some cards. * XXX This is done by performing an innocent and harmless bus read. (i386) * This is what Proxim's driver does, anyway. */ @@ -59,9 +58,7 @@ static void _rl2_register_write_1 __P((struct rl2_softc *, u_int8_t, static u_int8_t _rl2_register_read_1 __P((struct rl2_softc *, u_int8_t)); static int rl2_status_rx_ready __P((struct rl2_softc *)); -/* Register access */ - -/* Write to a register */ +/* Write to a register. */ static inline void _rl2_register_write_1(sc, regoff, value) struct rl2_softc *sc; @@ -76,7 +73,7 @@ _rl2_register_write_1(sc, regoff, value) _rl2_regacc_delay(); } -/* Read from a register */ +/* Read from a register. */ static inline u_int8_t _rl2_register_read_1(sc, regoff) struct rl2_softc *sc; @@ -95,9 +92,7 @@ _rl2_register_read_1(sc, regoff) return (ret); } -/* Data register */ - -/* 8-bit data access */ +/* 8-bit data register access. */ #define rl2_data_write_1(sc, value) \ _rl2_register_write_1(sc, RL2_REG_DATA, (value)) #define rl2_data_read_1(sc) \ @@ -109,7 +104,7 @@ _rl2_register_read_1(sc, regoff) bus_space_read_multi_1((sc)->sc_iot, (sc)->sc_ioh, \ RL2_REG_DATA, (buf), (len)) -/* 16-bit data access */ +/* 16-bit data register access. */ #define rl2_data_write_2(sc, value) \ bus_space_write_2((sc)->sc_iot, (sc)->sc_ioh, \ RL2_REG_DATA, (value)) @@ -123,12 +118,10 @@ _rl2_register_read_1(sc, regoff) bus_space_read_multi_2((sc)->sc_iot, (sc)->sc_ioh, \ RL2_REG_DATA, (buf), (len)) -/* Status register */ - +/* Status register. */ #define RL2_STATUS_CLRNAK 0x08 #define RL2_STATUS_WAKEUP 0x80 -/* Status codes */ #define RL2_STATUS_TX_IDLE 0x00 #define RL2_STATUS_TX_HILEN_AVAIL 0x01 #define RL2_STATUS_TX_HILEN_ACCEPT 0x02 @@ -182,7 +175,9 @@ rl2_status_rx_ready(sc) u_int8_t status; status = rl2_status_rx_read(sc); - return (status == 0x60 || status == 0x10 || status == 0x50); + return (status == RL2_STATUS_RX_LOLEN_AVAIL || + status == RL2_STATUS_RX_HILEN_AVAIL || + status == RL2_STATUS_RX_ERROR); } #define rl2_status_tx_int(sc) do { \ @@ -200,8 +195,7 @@ rl2_status_rx_ready(sc) splx(_s); \ } while (0) -/* Control register */ - +/* Control register. */ #define RL2_CONTROL_RXINT 0x01 #define RL2_CONTROL_TXINT 0x02 #define RL2_CONTROL_BIT2 0x04 @@ -225,8 +219,7 @@ rl2_status_rx_ready(sc) rl2_control_write(sc, (sc)->sc_control); \ } while (0) -/* IntSel register */ - +/* Interrupt selection register. */ #define RL2_INTSEL_IRQMASK 0x07 #define RL2_INTSEL_ENABLE 0x10 #define RL2_INTSEL_BIT7 0x80 @@ -247,20 +240,11 @@ rl2_status_rx_ready(sc) (sc)->sc_intsel |= RL2_INTSEL_ENABLE); \ splx(_s); \ } while (0) - #define rl2_intsel_write(sc, value) \ _rl2_register_write_1(sc, RL2_REG_INTSEL, \ (sc)->sc_intsel |= (value)) -/* End of interrupt signal (used on some newer cards?) */ - +/* End of interrupt signal, used on some newer cards. */ #define rl2_eoi(sc) \ (void) _rl2_register_read_1(sc, RL2_REG_EOI) -/* Strings useful for debugging with printf("%b") */ - -#ifdef RL2DEBUG -#define RL2_BSTR_STATUS "\20\4BIT3\10BIT7" -#define RL2_BSTR_CONTROL "\20\1RXINT\2TXINT\3BIT2\4BIT3\5RESET\6BUS16" -#define RL2_BSTR_INTSEL "\20\5ENABLE" -#endif |