diff options
Diffstat (limited to 'sys/arch/sun3/dev/zs_kgdb.c')
| -rw-r--r-- | sys/arch/sun3/dev/zs_kgdb.c | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/sys/arch/sun3/dev/zs_kgdb.c b/sys/arch/sun3/dev/zs_kgdb.c index 3ba576927cf..e6596e28cc3 100644 --- a/sys/arch/sun3/dev/zs_kgdb.c +++ b/sys/arch/sun3/dev/zs_kgdb.c @@ -1,3 +1,4 @@ +/* $NetBSD: zs_kgdb.c,v 1.6 1996/06/17 15:40:36 gwr Exp $ */ /* * Copyright (c) 1994 Gordon W. Ross @@ -71,9 +72,18 @@ /* The Sun3 provides a 4.9152 MHz clock to the ZS chips. */ #define PCLK (9600 * 512) /* PCLK pin input clock rate */ +#define ZSHARD_PRI 6 /* Wired on the CPU board... */ #define ZS_DELAY() delay(2) +/* The layout of this is hardware-dependent (padding, order). */ +struct zschan { + volatile u_char zc_csr; /* ctrl,status, and indirect access */ + u_char zc_xxx0; + volatile u_char zc_data; /* data */ + u_char zc_xxx1; +}; + extern int kgdb_dev; extern int kgdb_rate; @@ -103,6 +113,9 @@ static u_char zs_kgdb_regs[16] = { ZSWR15_BREAK_IE | ZSWR15_DCD_IE, }; +/* + * This replaces "zs_reset()" in the sparc driver. + */ static void zs_setparam(cs, iena, rate) struct zs_chanstate *cs; @@ -118,7 +131,7 @@ zs_setparam(cs, iena, rate) } /* Initialize the speed, etc. */ - tconst = BPS_TO_TCONST(cs->cs_pclk_div16, rate); + tconst = BPS_TO_TCONST(cs->cs_brg_clk, rate); cs->cs_preg[5] |= ZSWR5_DTR | ZSWR5_RTS; cs->cs_preg[12] = tconst; cs->cs_preg[13] = tconst >> 8; @@ -126,7 +139,7 @@ zs_setparam(cs, iena, rate) s = splhigh(); zs_loadchannelregs(cs); splx(s); - +} /* * Set up for kgdb; called at boot time before configuration. @@ -139,11 +152,12 @@ zs_kgdb_init() volatile struct zschan *zc; int channel, zsc_unit; - if (major(kgdb_dev) != ZSMAJOR) + if (major(kgdb_dev) != ZSTTY_MAJOR) return; - zsc_unit = 1; /* XXX */ - channel = minor(kgdb_dev) & 1; + /* Note: (ttya,ttyb) on zsc1, and (ttyc,ttyd) on zsc0 */ + zsc_unit = 2 - (kgdb_dev & 2); + channel = kgdb_dev & 1; printf("zs_kgdb_init: attaching zstty%d at %d baud\n", channel, kgdb_rate); @@ -153,7 +167,7 @@ zs_kgdb_init() cs.cs_reg_csr = &zc->zc_csr; cs.cs_reg_data = &zc->zc_data; cs.cs_channel = channel; - cs.cs_pclk_div16 = PCLK / 16; + cs.cs_brg_clk = PCLK / 16; /* Now set parameters. (interrupts disabled) */ zs_setparam(&cs, 0, kgdb_rate); @@ -200,7 +214,7 @@ zs_check_kgdb(cs, dev) */ zskgdb() { - unit = minor(kgdb_dev); + int unit = minor(kgdb_dev); printf("zstty%d: kgdb interrupt\n", unit); /* This will trap into the debugger. */ @@ -214,7 +228,7 @@ zskgdb() int kgdb_input_lost; -static int +static void zs_kgdb_rxint(cs) register struct zs_chanstate *cs; { @@ -236,11 +250,9 @@ zs_kgdb_rxint(cs) } else { kgdb_input_lost++; } - - return(0); } -static int +static void zs_kgdb_txint(cs) register struct zs_chanstate *cs; { @@ -248,10 +260,9 @@ zs_kgdb_txint(cs) rr0 = zs_read_csr(cs); zs_write_csr(cs, ZSWR0_RESET_TXINT); - return (0); } -static int +static void zs_kgdb_stint(cs) register struct zs_chanstate *cs; { @@ -259,16 +270,13 @@ zs_kgdb_stint(cs) rr0 = zs_read_csr(cs); zs_write_csr(cs, ZSWR0_RESET_STATUS); - - return (0); } -static int +static void zs_kgdb_softint(cs) struct zs_chanstate *cs; { printf("zs_kgdb_softint?\n"); - return (0); } struct zsops zsops_kgdb = { |