diff options
author | nyan <nyan@FreeBSD.org> | 2001-12-16 09:00:03 +0000 |
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committer | nyan <nyan@FreeBSD.org> | 2001-12-16 09:00:03 +0000 |
commit | 1384726539c246bfdec6aa61edc388ccb7961e62 (patch) | |
tree | 3dd8e5017be71fa6b703ca9a0b36f6c58fb93ee1 /sys/pc98 | |
parent | 4e774e7f0224114e8e57e4840447cca1f5683da3 (diff) | |
download | FreeBSD-src-1384726539c246bfdec6aa61edc388ccb7961e62.zip FreeBSD-src-1384726539c246bfdec6aa61edc388ccb7961e62.tar.gz |
Merged from sys/isa/{fd.c,fdreg.h} revisions 1.222 and 1.15, respectively.
Diffstat (limited to 'sys/pc98')
-rw-r--r-- | sys/pc98/cbus/fdc.c | 949 | ||||
-rw-r--r-- | sys/pc98/cbus/fdcreg.h | 13 | ||||
-rw-r--r-- | sys/pc98/pc98/fd.c | 949 | ||||
-rw-r--r-- | sys/pc98/pc98/fdreg.h | 13 |
4 files changed, 1182 insertions, 742 deletions
diff --git a/sys/pc98/cbus/fdc.c b/sys/pc98/cbus/fdc.c index 93eaf77..7a05e16 100644 --- a/sys/pc98/cbus/fdc.c +++ b/sys/pc98/cbus/fdc.c @@ -65,6 +65,7 @@ #include <sys/disklabel.h> #include <sys/fcntl.h> #include <sys/fdcio.h> +#include <sys/filio.h> #include <sys/kernel.h> #include <sys/lock.h> #include <sys/malloc.h> @@ -94,7 +95,7 @@ enum fdc_type { - FDC_NE765, FDC_I82077, FDC_NE72065, FDC_UNKNOWN = -1 + FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1 }; enum fdc_states { @@ -196,6 +197,7 @@ typedef struct fdc_data *fdc_p; typedef enum fdc_type fdc_t; #define FDUNIT(s) (((s) >> 6) & 3) +#define FDNUMTOUNIT(n) (((n) & 3) << 6) #define FDTYPE(s) ((s) & 0x3f) /* @@ -217,13 +219,9 @@ static __inline T fdc_get_ ## A(device_t dev) \ } FDC_ACCESSOR(fdunit, FDUNIT, int) -/* configuration flags */ -#define FDC_PRETEND_D0 (1 << 0) /* pretend drive 0 to be there */ +/* configuration flags for fdc */ #define FDC_NO_FIFO (1 << 2) /* do not enable FIFO */ -/* internally used only, not really from CMOS: */ -#define RTCFDT_144M_PRETENDED 0x1000 - /* error returns for fd_cmd() */ #define FD_FAILED -1 #define FD_NOT_VALID -2 @@ -236,95 +234,111 @@ FDC_ACCESSOR(fdunit, FDUNIT, int) */ #define FDC_DMAOV_MAX 25 +/* + * Number of subdevices that can be used for different density types. + * By now, the lower 6 bit of the minor number are reserved for this, + * allowing for up to 64 subdevices, but we only use 16 out of this. + * Density #0 is used for automatic format detection, the other + * densities are available as programmable densities (for assignment + * by fdcontrol(8)). + * The upper 2 bits of the minor number are reserved for the subunit + * (drive #) per controller. + */ #ifdef PC98 -#define NUMTYPES 12 -#define NUMDENS NUMTYPES +#define NUMDENS 12 #else -#define NUMTYPES 17 -#define NUMDENS (NUMTYPES - 7) +#define NUMDENS 16 #endif -#define NO_TYPE 0 -#define FD_1720 1 -#define FD_1480 2 -#define FD_1440 3 -#define FD_1200 4 -#define FD_820 5 -#define FD_800 6 -#define FD_720 7 -#define FD_360 8 -#define FD_640 9 -#define FD_1232 10 +#define BIO_RDSECTID BIO_CMD1 +/* + * List of native drive densities. Order must match enum fd_drivetype + * in <sys/fdcio.h>. Upon attaching the drive, each of the + * programmable subdevices is initialized with the native density + * definition. + */ #ifdef PC98 -#define FD_1280 11 -#define FD_1476 12 - -#define FDT_NONE 0 /* none present */ -#define FDT_12M 1 /* 1M/640K FDD */ -#define FDT_144M 2 /* 1.44M/1M/640K FDD */ -#else -#define FD_1480in5_25 11 -#define FD_1440in5_25 12 -#define FD_820in5_25 13 -#define FD_800in5_25 14 -#define FD_720in5_25 15 -#define FD_360in5_25 16 -#define FD_640in5_25 17 -#endif +static struct fd_type fd_native_types[] = +{ +{ 0 }, /* FDT_NONE */ +{ 0 }, /* FDT_360K */ +{ 15,2,0xFF,0x1B,80,2400,0,2,0x54,1,0,0 }, /* FDT_12M */ +{ 0 }, /* FDT_720K */ +{ 18,2,0xFF,0x1B,80,2880,2,2,0x54,1,0,0 }, /* FDT_144M */ +{ 0 }, /* FDT_288M */ +}; -#define BIO_RDSECTID BIO_CMD1 +static struct fd_type fd_searchlist_12m[] = { +{ 15,2,0xFF,0x1B,80,2400,0,2,0x54,1,0,0 }, /* 1.2M */ +{ 10,2,0xFF,0x10,82,1640,1,2,0x30,1,0,0 }, /* 820K */ +{ 10,2,0xFF,0x10,80,1600,1,2,0x30,1,0,0 }, /* 800K */ +{ 9,2,0xFF,0x20,80,1440,1,2,0x50,1,0,0 }, /* 720K */ +{ 9,2,0xFF,0x20,40, 720,1,2,0x50,1,0,FL_2STEP },/* 360K */ +{ 8,2,0xFF,0x2A,80,1280,1,2,0x50,1,0,0 }, /* 640K */ +{ 8,3,0xFF,0x35,77,1232,0,2,0x74,1,0,0 }, /* 1.23M 1024/sec */ -static struct fd_type fd_types[NUMTYPES] = -{ -#ifdef PC98 -{ 21,2,0xFF,0x04,82,3444,1,2,2,0x0C,2 }, /* 1.72M in 3mode */ -{ 18,2,0xFF,0x1B,82,2952,1,2,2,0x54,1 }, /* 1.48M in 3mode */ -{ 18,2,0xFF,0x1B,80,2880,1,2,2,0x54,1 }, /* 1.44M in 3mode */ -{ 15,2,0xFF,0x1B,80,2400,1,0,2,0x54,1 }, /* 1.2M */ -{ 10,2,0xFF,0x10,82,1640,1,1,2,0x30,1 }, /* 820K */ -{ 10,2,0xFF,0x10,80,1600,1,1,2,0x30,1 }, /* 800K */ -{ 9,2,0xFF,0x20,80,1440,1,1,2,0x50,1 }, /* 720K */ -{ 9,2,0xFF,0x20,40, 720,2,1,2,0x50,1 }, /* 360K */ -{ 8,2,0xFF,0x2A,80,1280,1,1,2,0x50,1 }, /* 640K */ -{ 8,3,0xFF,0x35,77,1232,1,0,2,0x74,1 }, /* 1.23M 1024/sec */ - -{ 8,3,0xFF,0x35,80,1280,1,0,2,0x74,1 }, /* 1.28M 1024/sec */ -{ 9,3,0xFF,0x35,82,1476,1,0,2,0x47,1 }, /* 1.48M 1024/sec 9sec */ +{ 8,3,0xFF,0x35,80,1280,0,2,0x74,1,0,0 }, /* 1.28M 1024/sec */ +}; +static struct fd_type fd_searchlist_144m[] = { +{ 21,2,0xFF,0x04,82,3444,2,2,0x0C,2,0,0 }, /* 1.72M in 3mode */ +{ 18,2,0xFF,0x1B,82,2952,2,2,0x54,1,0,0 }, /* 1.48M in 3mode */ +{ 18,2,0xFF,0x1B,80,2880,2,2,0x54,1,0,0 }, /* 1.44M in 3mode */ +{ 15,2,0xFF,0x1B,80,2400,0,2,0x54,1,0,0 }, /* 1.2M */ +{ 10,2,0xFF,0x10,82,1640,1,2,0x30,1,0,0 }, /* 820K */ +{ 10,2,0xFF,0x10,80,1600,1,2,0x30,1,0,0 }, /* 800K */ +{ 9,2,0xFF,0x20,80,1440,1,2,0x50,1,0,0 }, /* 720K */ +{ 9,2,0xFF,0x20,40, 720,1,2,0x50,1,0,FL_2STEP },/* 360K */ +{ 8,2,0xFF,0x2A,80,1280,1,2,0x50,1,0,0 }, /* 640K */ +{ 8,3,0xFF,0x35,77,1232,0,2,0x74,1,0,0 }, /* 1.23M 1024/sec */ + +{ 8,3,0xFF,0x35,80,1280,0,2,0x74,1,0,0 }, /* 1.28M 1024/sec */ +{ 9,3,0xFF,0x35,82,1476,0,2,0x47,1,0,0 }, /* 1.48M 1024/sec 9sec */ #if 0 -{ 10,3,0xFF,0x1B,82,1640,1,2,2,0x54,1 }, /* 1.64M in 3mode - Reserve */ +{ 10,3,0xFF,0x1B,82,1640,2,2,0x54,1,0,0 }, /* 1.64M in 3mode - Reserve */ #endif +}; +#else /* PC98 */ +static struct fd_type fd_native_types[] = +{ +{ 0 }, /* FDT_NONE */ +{ 9,2,0xFF,0x2A,40, 720,FDC_250KBPS,2,0x50,1,0,FL_MFM }, /* FDT_360K */ +{ 15,2,0xFF,0x1B,80,2400,FDC_500KBPS,2,0x54,1,0,FL_MFM }, /* FDT_12M */ +{ 9,2,0xFF,0x20,80,1440,FDC_250KBPS,2,0x50,1,0,FL_MFM }, /* FDT_720K */ +{ 18,2,0xFF,0x1B,80,2880,FDC_500KBPS,2,0x6C,1,0,FL_MFM }, /* FDT_144M */ +#if 0 /* we currently don't handle 2.88 MB */ +{ 36,2,0xFF,0x1B,80,5760,FDC_1MBPS, 2,0x4C,1,1,FL_MFM|FL_PERPND } /*FDT_288M*/ #else -{ 21,2,0xFF,0x04,82,3444,1,FDC_500KBPS,2,0x0C,2 }, /* 1.72M in HD 3.5in */ -{ 18,2,0xFF,0x1B,82,2952,1,FDC_500KBPS,2,0x6C,1 }, /* 1.48M in HD 3.5in */ -{ 18,2,0xFF,0x1B,80,2880,1,FDC_500KBPS,2,0x6C,1 }, /* 1.44M in HD 3.5in */ -{ 15,2,0xFF,0x1B,80,2400,1,FDC_500KBPS,2,0x54,1 }, /* 1.2M in HD 5.25/3.5 */ -{ 10,2,0xFF,0x10,82,1640,1,FDC_250KBPS,2,0x2E,1 }, /* 820K in HD 3.5in */ -{ 10,2,0xFF,0x10,80,1600,1,FDC_250KBPS,2,0x2E,1 }, /* 800K in HD 3.5in */ -{ 9,2,0xFF,0x20,80,1440,1,FDC_250KBPS,2,0x50,1 }, /* 720K in HD 3.5in */ -{ 9,2,0xFF,0x2A,40, 720,1,FDC_250KBPS,2,0x50,1 }, /* 360K in DD 5.25in */ -{ 8,2,0xFF,0x2A,80,1280,1,FDC_250KBPS,2,0x50,1 }, /* 640K in DD 5.25in */ -{ 8,3,0xFF,0x35,77,1232,1,FDC_500KBPS,2,0x74,1 }, /* 1.23M in HD 5.25in */ - -{ 18,2,0xFF,0x02,82,2952,1,FDC_500KBPS,2,0x02,2 }, /* 1.48M in HD 5.25in */ -{ 18,2,0xFF,0x02,80,2880,1,FDC_500KBPS,2,0x02,2 }, /* 1.44M in HD 5.25in */ -{ 10,2,0xFF,0x10,82,1640,1,FDC_300KBPS,2,0x2E,1 }, /* 820K in HD 5.25in */ -{ 10,2,0xFF,0x10,80,1600,1,FDC_300KBPS,2,0x2E,1 }, /* 800K in HD 5.25in */ -{ 9,2,0xFF,0x20,80,1440,1,FDC_300KBPS,2,0x50,1 }, /* 720K in HD 5.25in */ -{ 9,2,0xFF,0x23,40, 720,2,FDC_300KBPS,2,0x50,1 }, /* 360K in HD 5.25in */ -{ 8,2,0xFF,0x2A,80,1280,1,FDC_300KBPS,2,0x50,1 }, /* 640K in HD 5.25in */ +{ 18,2,0xFF,0x1B,80,2880,FDC_500KBPS,2,0x6C,1,0,FL_MFM }, /* FDT_144M */ #endif }; -#ifdef PC98 -static bus_addr_t fdc_iat[] = {0, 2, 4}; -#endif +/* + * 360 KB 5.25" and 720 KB 3.5" drives don't have automatic density + * selection, they just start out with their native density (or lose). + * So 1.2 MB 5.25", 1.44 MB 3.5", and 2.88 MB 3.5" drives have their + * respective lists of densities to search for. + */ +static struct fd_type fd_searchlist_12m[] = { +{ 15,2,0xFF,0x1B,80,2400,FDC_500KBPS,2,0x54,1,0,FL_MFM }, /* 1.2M */ +{ 9,2,0xFF,0x23,40, 720,FDC_300KBPS,2,0x50,1,0,FL_MFM|FL_2STEP }, /* 360K */ +{ 9,2,0xFF,0x20,80,1440,FDC_300KBPS,2,0x50,1,0,FL_MFM }, /* 720K */ +}; -#ifdef PC98 -#define DRVS_PER_CTLR 4 /* 4 floppies */ -#else -#define DRVS_PER_CTLR 2 /* 2 floppies */ +static struct fd_type fd_searchlist_144m[] = { +{ 18,2,0xFF,0x1B,80,2880,FDC_500KBPS,2,0x6C,1,0,FL_MFM }, /* 1.44M */ +{ 9,2,0xFF,0x20,80,1440,FDC_250KBPS,2,0x50,1,0,FL_MFM }, /* 720K */ +}; + +/* We search for 1.44M first since this is the most common case. */ +static struct fd_type fd_searchlist_288m[] = { +{ 18,2,0xFF,0x1B,80,2880,FDC_500KBPS,2,0x6C,1,0,FL_MFM }, /* 1.44M */ +#if 0 +{ 36,2,0xFF,0x1B,80,5760,FDC_1MBPS, 2,0x4C,1,1,FL_MFM|FL_PERPND } /* 2.88M */ #endif +{ 9,2,0xFF,0x20,80,1440,FDC_250KBPS,2,0x50,1,0,FL_MFM }, /* 720K */ +}; +#endif /* PC98 */ #define MAX_SEC_SIZE (128 << 3) #define MAX_CYLINDER 85 /* some people really stress their drives @@ -339,37 +353,54 @@ static devclass_t fdc_devclass; struct fd_data { struct fdc_data *fdc; /* pointer to controller structure */ int fdsu; /* this units number on this controller */ - int type; /* Drive type (FD_1440...) */ - struct fd_type *ft; /* pointer to the type descriptor */ + enum fd_drivetype type; /* drive type */ + struct fd_type *ft; /* pointer to current type descriptor */ + struct fd_type fts[NUMDENS]; /* type descriptors */ int flags; #define FD_OPEN 0x01 /* it's open */ -#define FD_ACTIVE 0x02 /* it's active */ -#define FD_MOTOR 0x04 /* motor should be on */ -#define FD_MOTOR_WAIT 0x08 /* motor coming up */ +#define FD_NONBLOCK 0x02 /* O_NONBLOCK set */ +#define FD_ACTIVE 0x04 /* it's active */ +#define FD_MOTOR 0x08 /* motor should be on */ +#define FD_MOTOR_WAIT 0x10 /* motor coming up */ +#define FD_UA 0x20 /* force unit attention */ int skip; int hddrv; #define FD_NO_TRACK -2 int track; /* where we think the head is */ - int options; /* user configurable options, see ioctl_fd.h */ -#ifdef PC98 - int pc98_trans; -#endif + int options; /* user configurable options, see fdcio.h */ struct callout_handle toffhandle; struct callout_handle tohandle; struct devstat device_stats; eventhandler_tag clonetag; dev_t masterdev; -#define NCLONEDEVS 10 /* must match the table below */ - dev_t clonedevs[NCLONEDEVS]; + dev_t clonedevs[NUMDENS - 1]; device_t dev; fdu_t fdu; +#ifdef PC98 + int pc98_trans; +#endif }; +#ifdef PC98 +static bus_addr_t fdc_iat[] = {0, 2, 4}; +#endif + struct fdc_ivars { int fdunit; }; static devclass_t fd_devclass; +/* configuration flags for fd */ +#define FD_TYPEMASK 0x0f /* drive type, matches enum + * fd_drivetype; on i386 machines, if + * given as 0, use RTC type for fd0 + * and fd1 */ +#define FD_DTYPE(flags) ((flags) & FD_TYPEMASK) +#define FD_NO_CHLINE 0x10 /* drive does not support changeline + * aka. unit attention */ +#define FD_NO_PROBE 0x20 /* don't probe drive (seek test), just + * assume it is there */ + #ifdef EPSON_NRDISK typedef unsigned int nrd_t; @@ -450,10 +481,8 @@ static void fdctl_wr_isa(fdc_p, u_int8_t); #if NCARD > 0 static void fdctl_wr_pcmcia(fdc_p, u_int8_t); #endif -#endif /* PC98 */ -#if 0 static u_int8_t fdin_rd(fdc_p); -#endif +#endif /* PC98 */ static int fdc_err(struct fdc_data *, const char *); static int fd_cmd(struct fdc_data *, int, ...); static int enable_fifo(fdc_p fdc); @@ -496,6 +525,7 @@ static timeout_t fd_iotimeout; static timeout_t fd_pseudointr; static driver_intr_t fdc_intr; static int fdcpio(fdc_p, long, caddr_t, u_int); +static int fdautoselect(dev_t); static int fdstate(struct fdc_data *); static int retrier(struct fdc_data *); static void fdbiodone(struct bio *); @@ -565,17 +595,13 @@ fdctl_wr_pcmcia(fdc_p fdc, u_int8_t v) bus_space_write_1(fdc->portt, fdc->porth, FDCTL+fdc->port_off, v); } #endif -#endif /* PC98 */ - -#if 0 static u_int8_t fdin_rd(fdc_p fdc) { return bus_space_read_1(fdc->portt, fdc->porth, FDIN); } - -#endif +#endif /* PC98 */ #define CDEV_MAJOR 9 static struct cdevsw fd_cdevsw = { @@ -845,7 +871,7 @@ static int pc98_fd_check_ready(fdu_t fdu) } return -1; } -#endif +#endif /* PC98 */ static int fdc_alloc_resources(struct fdc_data *fdc) @@ -1122,13 +1148,11 @@ fdc_probe(device_t dev) device_set_desc(dev, "NEC 765 or clone"); fdc->fdct = FDC_NE765; break; - case 0x81: - device_set_desc(dev, "Intel 82077 or clone"); - fdc->fdct = FDC_I82077; - break; + case 0x81: /* not mentioned in any hardware doc */ case 0x90: - device_set_desc(dev, "NEC 72065B or clone"); - fdc->fdct = FDC_NE72065; + device_set_desc(dev, + "enhanced floppy controller (i82077, NE72065 or clone)"); + fdc->fdct = FDC_ENHANCED; break; default: device_set_desc(dev, "generic floppy controller"); @@ -1239,7 +1263,7 @@ fdc_detach(device_t dev) static void fdc_add_child(device_t dev, const char *name, int unit) { - int disabled; + int disabled, flags; struct fdc_ivars *ivar; device_t child; @@ -1252,6 +1276,8 @@ fdc_add_child(device_t dev, const char *name, int unit) if (child == NULL) return; device_set_ivars(child, ivar); + if (resource_int_value(name, unit, "flags", &flags) == 0) + device_set_flags(child, flags); if (resource_int_value(name, unit, "disabled", &disabled) == 0 && disabled != 0) device_disable(child); @@ -1318,11 +1344,14 @@ fdc_attach(device_t dev) static int fdc_print_child(device_t me, device_t child) { - int retval = 0; + int retval = 0, flags; retval += bus_print_child_header(me, child); - retval += printf(" on %s drive %d\n", device_get_nameunit(me), + retval += printf(" on %s drive %d", device_get_nameunit(me), fdc_get_fdunit(child)); + if ((flags = device_get_flags(me)) != 0) + retval += printf(" flags %#x", flags); + retval += printf("\n"); return (retval); } @@ -1384,66 +1413,54 @@ DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, 0, 0); #endif /* NCARD > 0 */ -static struct { - char *match; - int minor; - int link; -} fd_suffix[] = { - /* - * Genuine clone devices must come first, and their number must - * match NCLONEDEVS above. - */ - { ".1720", 1, 0 }, - { ".1480", 2, 0 }, - { ".1440", 3, 0 }, - { ".1200", 4, 0 }, - { ".820", 5, 0 }, - { ".800", 6, 0 }, - { ".720", 7, 0 }, - { ".360", 8, 0 }, - { ".640", 9, 0 }, - { ".1232", 10, 0 }, -#ifdef PC98 - { ".1280", 11, 0 }, - { ".1476", 12, 0 }, -#endif - { "a", 0, 1 }, - { "b", 0, 1 }, - { "c", 0, 1 }, - { "d", 0, 1 }, - { "e", 0, 1 }, - { "f", 0, 1 }, - { "g", 0, 1 }, - { "h", 0, 1 }, - { 0, 0 } -}; - +/* + * Create a clone device upon request by devfs. + */ static void fd_clone(void *arg, char *name, int namelen, dev_t *dev) { struct fd_data *fd; - int u, d, i; + int i, u; char *n; + size_t l; fd = (struct fd_data *)arg; if (*dev != NODEV) return; if (dev_stdclone(name, &n, "fd", &u) != 2) return; - for (i = 0; ; i++) { - if (fd_suffix[i].match == NULL) - return; - if (strcmp(n, fd_suffix[i].match)) - continue; - d = fd_suffix[i].minor; - break; - } - if (fd_suffix[i].link == 0) { - *dev = make_dev(&fd_cdevsw, (u << 6) + d, - UID_ROOT, GID_OPERATOR, 0640, name); - fd->clonedevs[i] = *dev; - } else { + l = strlen(n); + if (l == 1 && *n >= 'a' && *n <= 'h') { + /* + * Trailing letters a through h denote + * pseudo-partitions. We don't support true + * (UFS-style) partitions, so we just implement them + * as symlinks if someone asks us nicely. + */ *dev = make_dev_alias(fd->masterdev, name); + return; + } + if (l >= 2 && l <= 5 && *n == '.') { + /* + * Trailing numbers, preceded by a dot, denote + * subdevices for different densities. Historically, + * they have been named by density (like fd0.1440), + * but we allow arbitrary numbers between 1 and 4 + * digits, so fd0.1 through fd0.15 are possible as + * well. + */ + for (i = 1; i < l; i++) + if (n[i] < '0' || n[i] > '9') + return; + for (i = 0; i < NUMDENS - 1; i++) + if (fd->clonedevs[i] == NODEV) { + *dev = make_dev(&fd_cdevsw, + FDNUMTOUNIT(u) + i + 1, + UID_ROOT, GID_OPERATOR, 0640, + name); + fd->clonedevs[i] = *dev; + return; + } } } @@ -1453,99 +1470,92 @@ fd_clone(void *arg, char *name, int namelen, dev_t *dev) static int fd_probe(device_t dev) { -#ifdef PC98 - u_int fdt; -#else int i; - u_int fdt, st0, st3; +#ifndef PC98 + u_int st0, st3; #endif struct fd_data *fd; struct fdc_data *fdc; fdsu_t fdsu; -#ifndef PC98 - static int fd_fifo = 0; -#endif + int flags; fdsu = *(int *)device_get_ivars(dev); /* xxx cheat a bit... */ fd = device_get_softc(dev); fdc = device_get_softc(device_get_parent(dev)); + flags = device_get_flags(dev); bzero(fd, sizeof *fd); fd->dev = dev; fd->fdc = fdc; fd->fdsu = fdsu; fd->fdu = device_get_unit(dev); + fd->flags = FD_UA; /* make sure fdautoselect() will be called */ + fd->type = FD_DTYPE(flags); #ifdef PC98 - /* look up what bios thinks we have */ - switch (fd->fdu) { - case 0: case 1: case 2: case 3: + if (fd->type == FDT_NONE && fd->fdu >= 0 && fd->fdu <= 3) { + /* Look up what the BIOS thinks we have. */ if ((PC98_SYSTEM_PARAMETER(0x5ae) >> fd->fdu) & 0x01) - fdt = FDT_144M; + fd->type = FDT_144M; #ifdef EPSON_NRDISK else if ((PC98_SYSTEM_PARAMETER(0x55c) >> fd->fdu) & 0x01) { - fdt = FDT_12M; + fd->type = FDT_12M; switch (epson_machine_id) { - case 0x20: case 0x27: - if ((PC98_SYSTEM_PARAMETER(0x488) >> fd->fdu) & 0x01) { - if (nrd_check_ready()) { - nrd_LED_on(); - nrdu = fd->fdu; - } else { - fdt = FDT_NONE; + case 0x20: + case 0x27: + if ((PC98_SYSTEM_PARAMETER(0x488) >> fd->fdu) + & 0x01) { + if (nrd_check_ready()) { + nrd_LED_on(); + nrdu = fd->fdu; + } else { + fd->type = FDT_NONE; + } } - } + break; } } #else /* !EPSON_NRDISK */ else if ((PC98_SYSTEM_PARAMETER(0x55c) >> fd->fdu) & 0x01) { - fdt = FDT_12M; + fd->type = FDT_12M; switch (epson_machine_id) { - case 0x20: case 0x27: - if ((PC98_SYSTEM_PARAMETER(0x488) >> fd->fdu) & 0x01) - fdt = FDT_NONE; + case 0x20: + case 0x27: + if ((PC98_SYSTEM_PARAMETER(0x488) >> fd->fdu) + & 0x01) + fd->type = FDT_NONE; + break; } } #endif /* EPSON_NRDISK */ - else - fdt = FDT_NONE; - break; - default: - fdt = FDT_NONE; - break; } -#else -#ifdef __i386__ - /* look up what bios thinks we have */ - switch (fd->fdu) { - case 0: - if ((fdc->flags & FDC_ISPCMCIA)) - fdt = RTCFDT_144M; - else if (device_get_flags(fdc->fdc_dev) & FDC_PRETEND_D0) - fdt = RTCFDT_144M | RTCFDT_144M_PRETENDED; - else - fdt = (rtcin(RTC_FDISKETTE) & 0xf0); - break; - case 1: - fdt = ((rtcin(RTC_FDISKETTE) << 4) & 0xf0); - break; - default: - fdt = RTCFDT_NONE; - break; +#else /* PC98 */ +#if _MACHINE_ARCH == i386 + if (fd->type == FDT_NONE && (fd->fdu == 0 || fd->fdu == 1)) { + /* Look up what the BIOS thinks we have. */ + if (fd->fdu == 0) { + if ((fdc->flags & FDC_ISPCMCIA)) + /* + * Somewhat special. No need to force the + * user to set device flags, since the Y-E + * Data PCMCIA floppy is always a 1.44 MB + * device. + */ + fd->type = FDT_144M; + else + fd->type = (rtcin(RTC_FDISKETTE) & 0xf0) >> 4; + } else { + fd->type = rtcin(RTC_FDISKETTE) & 0x0f; + } + if (fd->type == FDT_288M_1) + fd->type = FDT_288M; } -#else - fdt = RTCFDT_144M; /* XXX probably */ -#endif -#endif +#endif /* _MACHINE_ARCH == i386 */ +#endif /* PC98 */ /* is there a unit? */ -#ifdef PC98 - if (fdt == FDT_NONE) - return (ENXIO); -#else - if (fdt == RTCFDT_NONE) + if (fd->type == FDT_NONE) return (ENXIO); -#endif #ifndef PC98 /* select it */ @@ -1554,68 +1564,56 @@ fd_probe(device_t dev) DELAY(1000000); /* 1 sec */ /* XXX This doesn't work before the first set_motor() */ - if (fd_fifo == 0 && fdc->fdct != FDC_NE765 && fdc->fdct != FDC_UNKNOWN - && (device_get_flags(fdc->fdc_dev) & FDC_NO_FIFO) == 0 - && enable_fifo(fdc) == 0) { + if ((fdc->flags & FDC_HAS_FIFO) == 0 && + fdc->fdct == FDC_ENHANCED && + (device_get_flags(fdc->fdc_dev) & FDC_NO_FIFO) == 0 && + enable_fifo(fdc) == 0) { device_printf(device_get_parent(dev), "FIFO enabled, %d bytes threshold\n", fifo_threshold); } - fd_fifo = 1; - - if ((fd_cmd(fdc, 2, NE7CMD_SENSED, fdsu, 1, &st3) == 0) - && (st3 & NE7_ST3_T0)) { - /* if at track 0, first seek inwards */ - /* seek some steps: */ - fd_cmd(fdc, 3, NE7CMD_SEEK, fdsu, 10, 0); - DELAY(300000); /* ...wait a moment... */ - fd_sense_int(fdc, 0, 0); /* make ctrlr happy */ - } - /* If we're at track 0 first seek inwards. */ - if ((fd_sense_drive_status(fdc, &st3) == 0) && (st3 & NE7_ST3_T0)) { - /* Seek some steps... */ - if (fd_cmd(fdc, 3, NE7CMD_SEEK, fdsu, 10, 0) == 0) { - /* ...wait a moment... */ - DELAY(300000); - /* make ctrlr happy: */ - fd_sense_int(fdc, 0, 0); + if ((flags & FD_NO_PROBE) == 0) { + /* If we're at track 0 first seek inwards. */ + if ((fd_sense_drive_status(fdc, &st3) == 0) && + (st3 & NE7_ST3_T0)) { + /* Seek some steps... */ + if (fd_cmd(fdc, 3, NE7CMD_SEEK, fdsu, 10, 0) == 0) { + /* ...wait a moment... */ + DELAY(300000); + /* make ctrlr happy: */ + fd_sense_int(fdc, 0, 0); + } } - } - for (i = 0; i < 2; i++) { - /* - * we must recalibrate twice, just in case the - * heads have been beyond cylinder 76, since most - * FDCs still barf when attempting to recalibrate - * more than 77 steps - */ - /* go back to 0: */ - if (fd_cmd(fdc, 2, NE7CMD_RECAL, fdsu, 0) == 0) { - /* a second being enough for full stroke seek*/ - DELAY(i == 0 ? 1000000 : 300000); - - /* anything responding? */ - if (fd_sense_int(fdc, &st0, 0) == 0 && - (st0 & NE7_ST0_EC) == 0) - break; /* already probed succesfully */ + for (i = 0; i < 2; i++) { + /* + * we must recalibrate twice, just in case the + * heads have been beyond cylinder 76, since + * most FDCs still barf when attempting to + * recalibrate more than 77 steps + */ + /* go back to 0: */ + if (fd_cmd(fdc, 2, NE7CMD_RECAL, fdsu, 0) == 0) { + /* a second being enough for full stroke seek*/ + DELAY(i == 0 ? 1000000 : 300000); + + /* anything responding? */ + if (fd_sense_int(fdc, &st0, 0) == 0 && + (st0 & NE7_ST0_EC) == 0) + break; /* already probed succesfully */ + } } } set_motor(fdc, fdsu, TURNOFF); - if (st0 & NE7_ST0_EC) /* no track 0 -> no drive present */ + if ((flags & FD_NO_PROBE) == 0 && + (st0 & NE7_ST0_EC) != 0) /* no track 0 -> no drive present */ return (ENXIO); #endif /* PC98 */ - fd->track = FD_NO_TRACK; - fd->fdc = fdc; - fd->fdsu = fdsu; - fd->options = 0; - callout_handle_init(&fd->toffhandle); - callout_handle_init(&fd->tohandle); - #ifdef PC98 - switch (fdt) { + switch (fd->type) { case FDT_144M: /* Check 3mode I/F */ fd->pc98_trans = 0; @@ -1624,7 +1622,7 @@ fd_probe(device_t dev) if (!(bus_space_read_1(fdc->sc_fdemsiot, fdc->sc_fdemsioh, 0) & 0x01)) { device_set_desc(dev, "1.44M FDD"); - fd->type = FD_1440; + fd->type = FDT_144M; break; } @@ -1637,45 +1635,61 @@ fd_probe(device_t dev) device_set_desc(dev, "EPSON RAM DRIVE"); nrd_LED_off(); } else -#endif device_set_desc(dev, "1M/640K FDD"); - fd->type = FD_1200; - fd->pc98_trans = 0; +#else + device_set_desc(dev, "1M/640K FDD"); +#endif + fd->type = FDT_12M; break; default: return (ENXIO); } #else - switch (fdt) { - case RTCFDT_12M: + switch (fd->type) { + case FDT_12M: device_set_desc(dev, "1200-KB 5.25\" drive"); - fd->type = FD_1200; + fd->type = FDT_12M; break; - case RTCFDT_144M | RTCFDT_144M_PRETENDED: - device_set_desc(dev, "config-pretended 1440-MB 3.5\" drive"); - fdt = RTCFDT_144M; - fd->type = FD_1440; - case RTCFDT_144M: + case FDT_144M: device_set_desc(dev, "1440-KB 3.5\" drive"); - fd->type = FD_1440; + fd->type = FDT_144M; break; - case RTCFDT_288M: - case RTCFDT_288M_1: + case FDT_288M: device_set_desc(dev, "2880-KB 3.5\" drive (in 1440-KB mode)"); - fd->type = FD_1440; + fd->type = FDT_288M; break; - case RTCFDT_360K: + case FDT_360K: device_set_desc(dev, "360-KB 5.25\" drive"); - fd->type = FD_360; + fd->type = FDT_360K; break; - case RTCFDT_720K: - printf("720-KB 3.5\" drive"); - fd->type = FD_720; + case FDT_720K: + device_set_desc(dev, "720-KB 3.5\" drive"); + fd->type = FDT_720K; break; default: return (ENXIO); } #endif + fd->track = FD_NO_TRACK; + fd->fdc = fdc; + fd->fdsu = fdsu; + fd->options = 0; +#ifdef PC98 + fd->pc98_trans = 0; +#endif + callout_handle_init(&fd->toffhandle); + callout_handle_init(&fd->tohandle); + + /* initialize densities for subdevices */ +#ifdef PC98 + for (i = 0; i < NUMDENS; i++) + memcpy(fd->fts + i, fd_searchlist_144m + i, + sizeof(struct fd_type)); +#else + for (i = 0; i < NUMDENS; i++) + memcpy(fd->fts + i, fd_native_types + fd->type, + sizeof(struct fd_type)); +#endif return (0); } @@ -1694,7 +1708,7 @@ fd_attach(device_t dev) fd->clonetag = EVENTHANDLER_REGISTER(dev_clone, fd_clone, fd, 1000); fd->masterdev = make_dev(&fd_cdevsw, fd->fdu << 6, UID_ROOT, GID_OPERATOR, 0640, "fd%d", fd->fdu); - for (i = 0; i < NCLONEDEVS; i++) + for (i = 0; i < NUMDENS - 1; i++) fd->clonedevs[i] = NODEV; devstat_add_entry(&fd->device_stats, device_get_name(dev), device_get_unit(dev), 0, DEVSTAT_NO_ORDERED_TAGS, @@ -1713,7 +1727,7 @@ fd_detach(device_t dev) untimeout(fd_turnoff, fd, fd->toffhandle); devstat_remove_entry(&fd->device_stats); destroy_dev(fd->masterdev); - for (i = 0; i < NCLONEDEVS; i++) + for (i = 0; i < NUMDENS - 1; i++) if (fd->clonedevs[i] != NODEV) destroy_dev(fd->clonedevs[i]); cdevsw_remove(&fd_cdevsw); @@ -1925,87 +1939,85 @@ Fdopen(dev_t dev, int flags, int mode, struct thread *td) int type = FDTYPE(minor(dev)); fd_p fd; fdc_p fdc; + int rv, unitattn, dflags; - /* check bounds */ if ((fd = devclass_get_softc(fd_devclass, fdu)) == 0) return (ENXIO); fdc = fd->fdc; - if ((fdc == NULL) || (fd->type == NO_TYPE)) + if ((fdc == NULL) || (fd->type == FDT_NONE)) return (ENXIO); if (type > NUMDENS) return (ENXIO); -#ifdef PC98 - if (type == 0) - type = FD_1200; /* XXX backward compatibility */ - else - ; /* XXX any types are OK for PC-98 */ + dflags = device_get_flags(fd->dev); + /* + * This is a bit bogus. It's still possible that e. g. a + * descriptor gets inherited to a child, but then it's at + * least for the same subdevice. By checking FD_OPEN here, we + * can ensure that a device isn't attempted to be opened with + * different densities at the same time where the second open + * could clobber the settings from the first one. + */ + if (fd->flags & FD_OPEN) + return (EBUSY); +#ifdef PC98 if (pc98_fd_check_ready(fdu) == -1) return(EIO); -#else - if (type == 0) - type = fd->type; - else { - /* - * For each type of basic drive, make sure we are trying - * to open a type it can do, - */ - if (type != fd->type) { - switch (fd->type) { - case FD_360: - return (ENXIO); - case FD_720: - if ( type != FD_820 - && type != FD_800 - && type != FD_640 - ) - return (ENXIO); - break; - case FD_1200: - switch (type) { - case FD_1480: - type = FD_1480in5_25; - break; - case FD_1440: - type = FD_1440in5_25; - break; - case FD_1232: - break; - case FD_820: - type = FD_820in5_25; - break; - case FD_800: - type = FD_800in5_25; - break; - case FD_720: - type = FD_720in5_25; - break; - case FD_640: - type = FD_640in5_25; - break; - case FD_360: - type = FD_360in5_25; - break; - default: - return(ENXIO); - } - break; - case FD_1440: - if ( type != FD_1720 - && type != FD_1480 - && type != FD_1200 - && type != FD_820 - && type != FD_800 - && type != FD_720 - && type != FD_640 - ) - return(ENXIO); - break; +#endif + + if (type == 0) { + if (flags & FNONBLOCK) { + /* + * Unfortunately, physio(9) discards its ioflag + * argument, thus preventing us from seeing the + * IO_NDELAY bit. So we need to keep track + * ourselves. + */ + fd->flags |= FD_NONBLOCK; + fd->ft = 0; + } else { + /* + * Figure out a unit attention condition. + * + * If UA has been forced, proceed. + * + * If motor is off, turn it on for a moment + * and select our drive, in order to read the + * UA hardware signal. + * + * If motor is on, and our drive is currently + * selected, just read the hardware bit. + * + * If motor is on, but active for another + * drive on that controller, we are lost. We + * cannot risk to deselect the other drive, so + * we just assume a forced UA condition to be + * on the safe side. + */ + unitattn = 0; + if ((dflags & FD_NO_CHLINE) != 0 || + (fd->flags & FD_UA) != 0) { + unitattn = 1; + fd->flags &= ~FD_UA; +#ifndef PC98 + } else if (fdc->fdout & (FDO_MOEN0 | FDO_MOEN1 | + FDO_MOEN2 | FDO_MOEN3)) { + if ((fdc->fdout & FDO_FDSEL) == fd->fdsu) + unitattn = fdin_rd(fdc) & FDI_DCHG; + else + unitattn = 1; + } else { + set_motor(fdc, fd->fdsu, TURNON); + unitattn = fdin_rd(fdc) & FDI_DCHG; + set_motor(fdc, fd->fdsu, TURNOFF); +#endif /* PC98 */ } + if (unitattn && (rv = fdautoselect(dev)) != 0) + return (rv); } + } else { + fd->ft = fd->fts + type; } -#endif - fd->ft = fd_types + type - 1; fd->flags |= FD_OPEN; /* * Clearing the DMA overrun counter at open time is a bit messy. @@ -2030,7 +2042,7 @@ fdclose(dev_t dev, int flags, int mode, struct thread *td) struct fd_data *fd; fd = devclass_get_softc(fd_devclass, fdu); - fd->flags &= ~FD_OPEN; + fd->flags &= ~(FD_OPEN | FD_NONBLOCK); fd->options &= ~(FDOPT_NORETRY | FDOPT_NOERRLOG | FDOPT_NOERROR); return (0); @@ -2052,13 +2064,18 @@ fdstrategy(struct bio *bp) panic("fdstrategy: buf for nonexistent device (%#lx, %#lx)", (u_long)major(bp->bio_dev), (u_long)minor(bp->bio_dev)); fdc = fd->fdc; - if (fd->type == NO_TYPE) { + if (fd->type == FDT_NONE || fd->ft == 0) { bp->bio_error = ENXIO; bp->bio_flags |= BIO_ERROR; goto bad; } fdblk = 128 << (fd->ft->secsize); if (bp->bio_cmd != BIO_FORMAT && bp->bio_cmd != BIO_RDSECTID) { + if (fd->flags & FD_NONBLOCK) { + bp->bio_error = EAGAIN; + bp->bio_flags |= BIO_ERROR; + goto bad; + } if (bp->bio_blkno < 0) { printf( "fd%d: fdstrat: bad request blkno = %lu, bcount = %ld\n", @@ -2226,6 +2243,106 @@ fdcpio(fdc_p fdc, long flags, caddr_t addr, u_int count) } /* + * Try figuring out the density of the media present in our device. + */ +static int +fdautoselect(dev_t dev) +{ + fdu_t fdu; + fd_p fd; + struct fd_type *fdtp; + struct fdc_readid id; + int i, n, oopts, rv; + + fdu = FDUNIT(minor(dev)); + fd = devclass_get_softc(fd_devclass, fdu); + + switch (fd->type) { + default: + return (ENXIO); + +#ifndef PC98 + case FDT_360K: + case FDT_720K: + /* no autoselection on those drives */ + fd->ft = fd_native_types + fd->type; + return (0); +#endif + + case FDT_12M: + fdtp = fd_searchlist_12m; + n = sizeof fd_searchlist_12m / sizeof(struct fd_type); + break; + + case FDT_144M: + fdtp = fd_searchlist_144m; + n = sizeof fd_searchlist_144m / sizeof(struct fd_type); + break; + +#ifndef PC98 + case FDT_288M: + fdtp = fd_searchlist_288m; + n = sizeof fd_searchlist_288m / sizeof(struct fd_type); + break; +#endif + } + + /* + * Try reading sector ID fields, first at cylinder 0, head 0, + * then at cylinder 2, head N. We don't probe cylinder 1, + * since for 5.25in DD media in a HD drive, there are no data + * to read (2 step pulses per media cylinder required). For + * two-sided media, the second probe always goes to head 1, so + * we can tell them apart from single-sided media. As a + * side-effect this means that single-sided media should be + * mentioned in the search list after two-sided media of an + * otherwise identical density. Media with a different number + * of sectors per track but otherwise identical parameters + * cannot be distinguished at all. + * + * If we successfully read an ID field on both cylinders where + * the recorded values match our expectation, we are done. + * Otherwise, we try the next density entry from the table. + * + * Stepping to cylinder 2 has the side-effect of clearing the + * unit attention bit. + */ + oopts = fd->options; + fd->options |= FDOPT_NOERRLOG | FDOPT_NORETRY; + for (i = 0; i < n; i++, fdtp++) { + fd->ft = fdtp; + + id.cyl = id.head = 0; + rv = fdmisccmd(dev, BIO_RDSECTID, &id); + if (rv != 0) + continue; + if (id.cyl != 0 || id.head != 0 || + id.secshift != fdtp->secsize) + continue; + id.cyl = 2; + id.head = fd->ft->heads - 1; + rv = fdmisccmd(dev, BIO_RDSECTID, &id); + if (id.cyl != 2 || id.head != fdtp->heads - 1 || + id.secshift != fdtp->secsize) + continue; + if (rv == 0) + break; + } + + fd->options = oopts; + if (i == n) { + device_printf(fd->dev, "autoselection failed\n"); + fd->ft = 0; + return (EIO); + } else { + device_printf(fd->dev, "autoselected %d KB medium\n", + fd->ft->size / 2); + return (0); + } +} + + +/* * The controller state machine. * * If it returns a non zero value, it should be called again immediately. @@ -2235,7 +2352,7 @@ fdstate(fdc_p fdc) { struct fdc_readid *idp; int read, format, rdsectid, cylinder, head, i, sec = 0, sectrac; - int st0, cyl, st3, idf; + int st0, cyl, st3, idf, ne7cmd, mfm, steptrac; unsigned long blknum; fdu_t fdu = fdc->fdu; fd_p fd; @@ -2272,6 +2389,8 @@ fdstate(fdc_p fdc) if (fdc->fd && (fd != fdc->fd)) device_printf(fd->dev, "confused fd pointers\n"); read = bp->bio_cmd == BIO_READ; + mfm = (fd->ft->flags & FL_MFM)? NE7CMD_MFM: 0; + steptrac = (fd->ft->flags & FL_2STEP)? 2: 1; if (read) idf = ISADMA_READ; else @@ -2305,7 +2424,7 @@ fdstate(fdc_p fdc) pc98_trans_prev = pc98_trans; } if (pc98_trans != fd->pc98_trans) { - if (fd->type == FD_1440) { + if (fd->type == FDT_144M) { bus_space_write_1(fdc->sc_fdemsiot, fdc->sc_fdemsioh, 0, @@ -2379,8 +2498,7 @@ fdstate(fdc_p fdc) pc98_fd_check_ready(fdu); #endif if (fd_cmd(fdc, 3, NE7CMD_SEEK, - fd->fdsu, cylinder * fd->ft->steptrac, - 0)) + fd->fdsu, cylinder * steptrac, 0)) { /* * Seek command not accepted, looks like @@ -2409,7 +2527,7 @@ fdstate(fdc_p fdc) /* Make sure seek really happened. */ if(fd->track == FD_NO_TRACK) { - int descyl = cylinder * fd->ft->steptrac; + int descyl = cylinder * steptrac; do { /* * This might be a "ready changed" interrupt, @@ -2497,6 +2615,8 @@ fdstate(fdc_p fdc) sec = blknum % (sectrac * fd->ft->heads); head = sec / sectrac; sec = sec % sectrac + 1; + if (head != 0 && fd->ft->offset_side2 != 0) + sec += fd->ft->offset_side2; fd->hddrv = ((head&1)<<2)+fdu; if(format || !(read || rdsectid)) @@ -2535,6 +2655,7 @@ fdstate(fdc_p fdc) } if (format) { + ne7cmd = NE7CMD_FORMAT | mfm; if (fdc->flags & FDC_NODMA) { /* * This seems to be necessary for @@ -2556,7 +2677,7 @@ fdstate(fdc_p fdc) } /* formatting */ - if(fd_cmd(fdc, 6, NE7CMD_FORMAT, head << 2 | fdu, + if(fd_cmd(fdc, 6, ne7cmd, head << 2 | fdu, finfo->fd_formb_secshift, finfo->fd_formb_nsecs, finfo->fd_formb_gaplen, @@ -2571,13 +2692,15 @@ fdstate(fdc_p fdc) return (retrier(fdc)); } } else if (rdsectid) { - if (fd_cmd(fdc, 2, NE7CMD_READID, head << 2 | fdu, 0)) { + ne7cmd = NE7CMD_READID | mfm; + if (fd_cmd(fdc, 2, ne7cmd, head << 2 | fdu, 0)) { /* controller jamming */ fdc->retry = 6; return (retrier(fdc)); } } else { /* read or write operation */ + ne7cmd = (read ? NE7CMD_READ | NE7CMD_SK : NE7CMD_WRITE) | mfm; if (fdc->flags & FDC_NODMA) { /* * This seems to be necessary even when @@ -2595,7 +2718,7 @@ fdstate(fdc_p fdc) fdblk); } if (fd_cmd(fdc, 9, - (read ? NE7CMD_READ : NE7CMD_WRITE), + ne7cmd, head << 2 | fdu, /* head & unit */ fd->track, /* track */ head, @@ -3007,15 +3130,115 @@ fdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) struct fdc_status *fsp; struct fdc_readid *rid; size_t fdblk; - int error; + int error, type; fdu = FDUNIT(minor(dev)); + type = FDTYPE(minor(dev)); fd = devclass_get_softc(fd_devclass, fdu); #ifdef PC98 pc98_fd_check_ready(fdu); #endif + /* + * First, handle everything that could be done with + * FD_NONBLOCK still being set. + */ + switch (cmd) { + case FIONBIO: + if (*(int *)addr != 0) + fd->flags |= FD_NONBLOCK; + else { + if (fd->ft == 0) { + /* + * No drive type has been selected yet, + * cannot turn FNONBLOCK off. + */ + return (EINVAL); + } + fd->flags &= ~FD_NONBLOCK; + } + return (0); + + case FIOASYNC: + /* keep the generic fcntl() code happy */ + return (0); + + case FD_GTYPE: /* get drive type */ + if (fd->ft == 0) + /* no type known yet, return the native type */ + *(struct fd_type *)addr = fd_native_types[fd->type]; + else + *(struct fd_type *)addr = *fd->ft; + return (0); + + case FD_STYPE: /* set drive type */ + if (type == 0) { + /* + * Allow setting drive type temporarily iff + * currently unset. Used for fdformat so any + * user can set it, and then start formatting. + */ + if (fd->ft) + return (EINVAL); /* already set */ + fd->ft = fd->fts; + *fd->ft = *(struct fd_type *)addr; + fd->flags |= FD_UA; + } else { + /* + * Set density definition permanently. Only + * allow for superuser. + */ + if (suser_td(td) != 0) + return (EPERM); + fd->fts[type] = *(struct fd_type *)addr; + } + return (0); + + case FD_GOPTS: /* get drive options */ + *(int *)addr = fd->options + (type == 0? FDOPT_AUTOSEL: 0); + return (0); + + case FD_SOPTS: /* set drive options */ + fd->options = *(int *)addr & ~FDOPT_AUTOSEL; + return (0); + +#ifdef FDC_DEBUG + case FD_DEBUG: + if ((fd_debug != 0) != (*(int *)addr != 0)) { + fd_debug = (*(int *)addr != 0); + printf("fd%d: debugging turned %s\n", + fd->fdu, fd_debug ? "on" : "off"); + } + return (0); +#endif + + case FD_CLRERR: + if (suser_td(td) != 0) + return (EPERM); + fd->fdc->fdc_errs = 0; + return (0); + + case FD_GSTAT: + fsp = (struct fdc_status *)addr; + if ((fd->fdc->flags & FDC_STAT_VALID) == 0) + return (EINVAL); + memcpy(fsp->status, fd->fdc->status, 7 * sizeof(u_int)); + return (0); + + case FD_GDTYPE: + *(enum fd_drivetype *)addr = fd->type; + return (0); + } + + /* + * Now handle everything else. Make sure we have a valid + * drive type. + */ + if (fd->flags & FD_NONBLOCK) + return (EAGAIN); + if (fd->ft == 0) + return (ENXIO); fdblk = 128 << fd->ft->secsize; error = 0; diff --git a/sys/pc98/cbus/fdcreg.h b/sys/pc98/cbus/fdcreg.h index 4ec923e..e1841c9 100644 --- a/sys/pc98/cbus/fdcreg.h +++ b/sys/pc98/cbus/fdcreg.h @@ -74,14 +74,11 @@ #define FDCTL 7 /* Control Register (W) */ #endif /* PC98 */ -#ifndef FDC_500KBPS -# define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ -# define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ -# define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ -# define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */ - /* for some controllers 1MPBS instead */ -#endif /* FDC_500KBPS */ - +/* + * The definitions for FDC_500KBPS etc. have been moved out to <sys/fdcio.h> + * since they need to be visible in userland. They cover the lower two bits + * of FDCTL when used for output. + */ /* * this is the secret PIO data port (offset from base) */ diff --git a/sys/pc98/pc98/fd.c b/sys/pc98/pc98/fd.c index 93eaf77..7a05e16 100644 --- a/sys/pc98/pc98/fd.c +++ b/sys/pc98/pc98/fd.c @@ -65,6 +65,7 @@ #include <sys/disklabel.h> #include <sys/fcntl.h> #include <sys/fdcio.h> +#include <sys/filio.h> #include <sys/kernel.h> #include <sys/lock.h> #include <sys/malloc.h> @@ -94,7 +95,7 @@ enum fdc_type { - FDC_NE765, FDC_I82077, FDC_NE72065, FDC_UNKNOWN = -1 + FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1 }; enum fdc_states { @@ -196,6 +197,7 @@ typedef struct fdc_data *fdc_p; typedef enum fdc_type fdc_t; #define FDUNIT(s) (((s) >> 6) & 3) +#define FDNUMTOUNIT(n) (((n) & 3) << 6) #define FDTYPE(s) ((s) & 0x3f) /* @@ -217,13 +219,9 @@ static __inline T fdc_get_ ## A(device_t dev) \ } FDC_ACCESSOR(fdunit, FDUNIT, int) -/* configuration flags */ -#define FDC_PRETEND_D0 (1 << 0) /* pretend drive 0 to be there */ +/* configuration flags for fdc */ #define FDC_NO_FIFO (1 << 2) /* do not enable FIFO */ -/* internally used only, not really from CMOS: */ -#define RTCFDT_144M_PRETENDED 0x1000 - /* error returns for fd_cmd() */ #define FD_FAILED -1 #define FD_NOT_VALID -2 @@ -236,95 +234,111 @@ FDC_ACCESSOR(fdunit, FDUNIT, int) */ #define FDC_DMAOV_MAX 25 +/* + * Number of subdevices that can be used for different density types. + * By now, the lower 6 bit of the minor number are reserved for this, + * allowing for up to 64 subdevices, but we only use 16 out of this. + * Density #0 is used for automatic format detection, the other + * densities are available as programmable densities (for assignment + * by fdcontrol(8)). + * The upper 2 bits of the minor number are reserved for the subunit + * (drive #) per controller. + */ #ifdef PC98 -#define NUMTYPES 12 -#define NUMDENS NUMTYPES +#define NUMDENS 12 #else -#define NUMTYPES 17 -#define NUMDENS (NUMTYPES - 7) +#define NUMDENS 16 #endif -#define NO_TYPE 0 -#define FD_1720 1 -#define FD_1480 2 -#define FD_1440 3 -#define FD_1200 4 -#define FD_820 5 -#define FD_800 6 -#define FD_720 7 -#define FD_360 8 -#define FD_640 9 -#define FD_1232 10 +#define BIO_RDSECTID BIO_CMD1 +/* + * List of native drive densities. Order must match enum fd_drivetype + * in <sys/fdcio.h>. Upon attaching the drive, each of the + * programmable subdevices is initialized with the native density + * definition. + */ #ifdef PC98 -#define FD_1280 11 -#define FD_1476 12 - -#define FDT_NONE 0 /* none present */ -#define FDT_12M 1 /* 1M/640K FDD */ -#define FDT_144M 2 /* 1.44M/1M/640K FDD */ -#else -#define FD_1480in5_25 11 -#define FD_1440in5_25 12 -#define FD_820in5_25 13 -#define FD_800in5_25 14 -#define FD_720in5_25 15 -#define FD_360in5_25 16 -#define FD_640in5_25 17 -#endif +static struct fd_type fd_native_types[] = +{ +{ 0 }, /* FDT_NONE */ +{ 0 }, /* FDT_360K */ +{ 15,2,0xFF,0x1B,80,2400,0,2,0x54,1,0,0 }, /* FDT_12M */ +{ 0 }, /* FDT_720K */ +{ 18,2,0xFF,0x1B,80,2880,2,2,0x54,1,0,0 }, /* FDT_144M */ +{ 0 }, /* FDT_288M */ +}; -#define BIO_RDSECTID BIO_CMD1 +static struct fd_type fd_searchlist_12m[] = { +{ 15,2,0xFF,0x1B,80,2400,0,2,0x54,1,0,0 }, /* 1.2M */ +{ 10,2,0xFF,0x10,82,1640,1,2,0x30,1,0,0 }, /* 820K */ +{ 10,2,0xFF,0x10,80,1600,1,2,0x30,1,0,0 }, /* 800K */ +{ 9,2,0xFF,0x20,80,1440,1,2,0x50,1,0,0 }, /* 720K */ +{ 9,2,0xFF,0x20,40, 720,1,2,0x50,1,0,FL_2STEP },/* 360K */ +{ 8,2,0xFF,0x2A,80,1280,1,2,0x50,1,0,0 }, /* 640K */ +{ 8,3,0xFF,0x35,77,1232,0,2,0x74,1,0,0 }, /* 1.23M 1024/sec */ -static struct fd_type fd_types[NUMTYPES] = -{ -#ifdef PC98 -{ 21,2,0xFF,0x04,82,3444,1,2,2,0x0C,2 }, /* 1.72M in 3mode */ -{ 18,2,0xFF,0x1B,82,2952,1,2,2,0x54,1 }, /* 1.48M in 3mode */ -{ 18,2,0xFF,0x1B,80,2880,1,2,2,0x54,1 }, /* 1.44M in 3mode */ -{ 15,2,0xFF,0x1B,80,2400,1,0,2,0x54,1 }, /* 1.2M */ -{ 10,2,0xFF,0x10,82,1640,1,1,2,0x30,1 }, /* 820K */ -{ 10,2,0xFF,0x10,80,1600,1,1,2,0x30,1 }, /* 800K */ -{ 9,2,0xFF,0x20,80,1440,1,1,2,0x50,1 }, /* 720K */ -{ 9,2,0xFF,0x20,40, 720,2,1,2,0x50,1 }, /* 360K */ -{ 8,2,0xFF,0x2A,80,1280,1,1,2,0x50,1 }, /* 640K */ -{ 8,3,0xFF,0x35,77,1232,1,0,2,0x74,1 }, /* 1.23M 1024/sec */ - -{ 8,3,0xFF,0x35,80,1280,1,0,2,0x74,1 }, /* 1.28M 1024/sec */ -{ 9,3,0xFF,0x35,82,1476,1,0,2,0x47,1 }, /* 1.48M 1024/sec 9sec */ +{ 8,3,0xFF,0x35,80,1280,0,2,0x74,1,0,0 }, /* 1.28M 1024/sec */ +}; +static struct fd_type fd_searchlist_144m[] = { +{ 21,2,0xFF,0x04,82,3444,2,2,0x0C,2,0,0 }, /* 1.72M in 3mode */ +{ 18,2,0xFF,0x1B,82,2952,2,2,0x54,1,0,0 }, /* 1.48M in 3mode */ +{ 18,2,0xFF,0x1B,80,2880,2,2,0x54,1,0,0 }, /* 1.44M in 3mode */ +{ 15,2,0xFF,0x1B,80,2400,0,2,0x54,1,0,0 }, /* 1.2M */ +{ 10,2,0xFF,0x10,82,1640,1,2,0x30,1,0,0 }, /* 820K */ +{ 10,2,0xFF,0x10,80,1600,1,2,0x30,1,0,0 }, /* 800K */ +{ 9,2,0xFF,0x20,80,1440,1,2,0x50,1,0,0 }, /* 720K */ +{ 9,2,0xFF,0x20,40, 720,1,2,0x50,1,0,FL_2STEP },/* 360K */ +{ 8,2,0xFF,0x2A,80,1280,1,2,0x50,1,0,0 }, /* 640K */ +{ 8,3,0xFF,0x35,77,1232,0,2,0x74,1,0,0 }, /* 1.23M 1024/sec */ + +{ 8,3,0xFF,0x35,80,1280,0,2,0x74,1,0,0 }, /* 1.28M 1024/sec */ +{ 9,3,0xFF,0x35,82,1476,0,2,0x47,1,0,0 }, /* 1.48M 1024/sec 9sec */ #if 0 -{ 10,3,0xFF,0x1B,82,1640,1,2,2,0x54,1 }, /* 1.64M in 3mode - Reserve */ +{ 10,3,0xFF,0x1B,82,1640,2,2,0x54,1,0,0 }, /* 1.64M in 3mode - Reserve */ #endif +}; +#else /* PC98 */ +static struct fd_type fd_native_types[] = +{ +{ 0 }, /* FDT_NONE */ +{ 9,2,0xFF,0x2A,40, 720,FDC_250KBPS,2,0x50,1,0,FL_MFM }, /* FDT_360K */ +{ 15,2,0xFF,0x1B,80,2400,FDC_500KBPS,2,0x54,1,0,FL_MFM }, /* FDT_12M */ +{ 9,2,0xFF,0x20,80,1440,FDC_250KBPS,2,0x50,1,0,FL_MFM }, /* FDT_720K */ +{ 18,2,0xFF,0x1B,80,2880,FDC_500KBPS,2,0x6C,1,0,FL_MFM }, /* FDT_144M */ +#if 0 /* we currently don't handle 2.88 MB */ +{ 36,2,0xFF,0x1B,80,5760,FDC_1MBPS, 2,0x4C,1,1,FL_MFM|FL_PERPND } /*FDT_288M*/ #else -{ 21,2,0xFF,0x04,82,3444,1,FDC_500KBPS,2,0x0C,2 }, /* 1.72M in HD 3.5in */ -{ 18,2,0xFF,0x1B,82,2952,1,FDC_500KBPS,2,0x6C,1 }, /* 1.48M in HD 3.5in */ -{ 18,2,0xFF,0x1B,80,2880,1,FDC_500KBPS,2,0x6C,1 }, /* 1.44M in HD 3.5in */ -{ 15,2,0xFF,0x1B,80,2400,1,FDC_500KBPS,2,0x54,1 }, /* 1.2M in HD 5.25/3.5 */ -{ 10,2,0xFF,0x10,82,1640,1,FDC_250KBPS,2,0x2E,1 }, /* 820K in HD 3.5in */ -{ 10,2,0xFF,0x10,80,1600,1,FDC_250KBPS,2,0x2E,1 }, /* 800K in HD 3.5in */ -{ 9,2,0xFF,0x20,80,1440,1,FDC_250KBPS,2,0x50,1 }, /* 720K in HD 3.5in */ -{ 9,2,0xFF,0x2A,40, 720,1,FDC_250KBPS,2,0x50,1 }, /* 360K in DD 5.25in */ -{ 8,2,0xFF,0x2A,80,1280,1,FDC_250KBPS,2,0x50,1 }, /* 640K in DD 5.25in */ -{ 8,3,0xFF,0x35,77,1232,1,FDC_500KBPS,2,0x74,1 }, /* 1.23M in HD 5.25in */ - -{ 18,2,0xFF,0x02,82,2952,1,FDC_500KBPS,2,0x02,2 }, /* 1.48M in HD 5.25in */ -{ 18,2,0xFF,0x02,80,2880,1,FDC_500KBPS,2,0x02,2 }, /* 1.44M in HD 5.25in */ -{ 10,2,0xFF,0x10,82,1640,1,FDC_300KBPS,2,0x2E,1 }, /* 820K in HD 5.25in */ -{ 10,2,0xFF,0x10,80,1600,1,FDC_300KBPS,2,0x2E,1 }, /* 800K in HD 5.25in */ -{ 9,2,0xFF,0x20,80,1440,1,FDC_300KBPS,2,0x50,1 }, /* 720K in HD 5.25in */ -{ 9,2,0xFF,0x23,40, 720,2,FDC_300KBPS,2,0x50,1 }, /* 360K in HD 5.25in */ -{ 8,2,0xFF,0x2A,80,1280,1,FDC_300KBPS,2,0x50,1 }, /* 640K in HD 5.25in */ +{ 18,2,0xFF,0x1B,80,2880,FDC_500KBPS,2,0x6C,1,0,FL_MFM }, /* FDT_144M */ #endif }; -#ifdef PC98 -static bus_addr_t fdc_iat[] = {0, 2, 4}; -#endif +/* + * 360 KB 5.25" and 720 KB 3.5" drives don't have automatic density + * selection, they just start out with their native density (or lose). + * So 1.2 MB 5.25", 1.44 MB 3.5", and 2.88 MB 3.5" drives have their + * respective lists of densities to search for. + */ +static struct fd_type fd_searchlist_12m[] = { +{ 15,2,0xFF,0x1B,80,2400,FDC_500KBPS,2,0x54,1,0,FL_MFM }, /* 1.2M */ +{ 9,2,0xFF,0x23,40, 720,FDC_300KBPS,2,0x50,1,0,FL_MFM|FL_2STEP }, /* 360K */ +{ 9,2,0xFF,0x20,80,1440,FDC_300KBPS,2,0x50,1,0,FL_MFM }, /* 720K */ +}; -#ifdef PC98 -#define DRVS_PER_CTLR 4 /* 4 floppies */ -#else -#define DRVS_PER_CTLR 2 /* 2 floppies */ +static struct fd_type fd_searchlist_144m[] = { +{ 18,2,0xFF,0x1B,80,2880,FDC_500KBPS,2,0x6C,1,0,FL_MFM }, /* 1.44M */ +{ 9,2,0xFF,0x20,80,1440,FDC_250KBPS,2,0x50,1,0,FL_MFM }, /* 720K */ +}; + +/* We search for 1.44M first since this is the most common case. */ +static struct fd_type fd_searchlist_288m[] = { +{ 18,2,0xFF,0x1B,80,2880,FDC_500KBPS,2,0x6C,1,0,FL_MFM }, /* 1.44M */ +#if 0 +{ 36,2,0xFF,0x1B,80,5760,FDC_1MBPS, 2,0x4C,1,1,FL_MFM|FL_PERPND } /* 2.88M */ #endif +{ 9,2,0xFF,0x20,80,1440,FDC_250KBPS,2,0x50,1,0,FL_MFM }, /* 720K */ +}; +#endif /* PC98 */ #define MAX_SEC_SIZE (128 << 3) #define MAX_CYLINDER 85 /* some people really stress their drives @@ -339,37 +353,54 @@ static devclass_t fdc_devclass; struct fd_data { struct fdc_data *fdc; /* pointer to controller structure */ int fdsu; /* this units number on this controller */ - int type; /* Drive type (FD_1440...) */ - struct fd_type *ft; /* pointer to the type descriptor */ + enum fd_drivetype type; /* drive type */ + struct fd_type *ft; /* pointer to current type descriptor */ + struct fd_type fts[NUMDENS]; /* type descriptors */ int flags; #define FD_OPEN 0x01 /* it's open */ -#define FD_ACTIVE 0x02 /* it's active */ -#define FD_MOTOR 0x04 /* motor should be on */ -#define FD_MOTOR_WAIT 0x08 /* motor coming up */ +#define FD_NONBLOCK 0x02 /* O_NONBLOCK set */ +#define FD_ACTIVE 0x04 /* it's active */ +#define FD_MOTOR 0x08 /* motor should be on */ +#define FD_MOTOR_WAIT 0x10 /* motor coming up */ +#define FD_UA 0x20 /* force unit attention */ int skip; int hddrv; #define FD_NO_TRACK -2 int track; /* where we think the head is */ - int options; /* user configurable options, see ioctl_fd.h */ -#ifdef PC98 - int pc98_trans; -#endif + int options; /* user configurable options, see fdcio.h */ struct callout_handle toffhandle; struct callout_handle tohandle; struct devstat device_stats; eventhandler_tag clonetag; dev_t masterdev; -#define NCLONEDEVS 10 /* must match the table below */ - dev_t clonedevs[NCLONEDEVS]; + dev_t clonedevs[NUMDENS - 1]; device_t dev; fdu_t fdu; +#ifdef PC98 + int pc98_trans; +#endif }; +#ifdef PC98 +static bus_addr_t fdc_iat[] = {0, 2, 4}; +#endif + struct fdc_ivars { int fdunit; }; static devclass_t fd_devclass; +/* configuration flags for fd */ +#define FD_TYPEMASK 0x0f /* drive type, matches enum + * fd_drivetype; on i386 machines, if + * given as 0, use RTC type for fd0 + * and fd1 */ +#define FD_DTYPE(flags) ((flags) & FD_TYPEMASK) +#define FD_NO_CHLINE 0x10 /* drive does not support changeline + * aka. unit attention */ +#define FD_NO_PROBE 0x20 /* don't probe drive (seek test), just + * assume it is there */ + #ifdef EPSON_NRDISK typedef unsigned int nrd_t; @@ -450,10 +481,8 @@ static void fdctl_wr_isa(fdc_p, u_int8_t); #if NCARD > 0 static void fdctl_wr_pcmcia(fdc_p, u_int8_t); #endif -#endif /* PC98 */ -#if 0 static u_int8_t fdin_rd(fdc_p); -#endif +#endif /* PC98 */ static int fdc_err(struct fdc_data *, const char *); static int fd_cmd(struct fdc_data *, int, ...); static int enable_fifo(fdc_p fdc); @@ -496,6 +525,7 @@ static timeout_t fd_iotimeout; static timeout_t fd_pseudointr; static driver_intr_t fdc_intr; static int fdcpio(fdc_p, long, caddr_t, u_int); +static int fdautoselect(dev_t); static int fdstate(struct fdc_data *); static int retrier(struct fdc_data *); static void fdbiodone(struct bio *); @@ -565,17 +595,13 @@ fdctl_wr_pcmcia(fdc_p fdc, u_int8_t v) bus_space_write_1(fdc->portt, fdc->porth, FDCTL+fdc->port_off, v); } #endif -#endif /* PC98 */ - -#if 0 static u_int8_t fdin_rd(fdc_p fdc) { return bus_space_read_1(fdc->portt, fdc->porth, FDIN); } - -#endif +#endif /* PC98 */ #define CDEV_MAJOR 9 static struct cdevsw fd_cdevsw = { @@ -845,7 +871,7 @@ static int pc98_fd_check_ready(fdu_t fdu) } return -1; } -#endif +#endif /* PC98 */ static int fdc_alloc_resources(struct fdc_data *fdc) @@ -1122,13 +1148,11 @@ fdc_probe(device_t dev) device_set_desc(dev, "NEC 765 or clone"); fdc->fdct = FDC_NE765; break; - case 0x81: - device_set_desc(dev, "Intel 82077 or clone"); - fdc->fdct = FDC_I82077; - break; + case 0x81: /* not mentioned in any hardware doc */ case 0x90: - device_set_desc(dev, "NEC 72065B or clone"); - fdc->fdct = FDC_NE72065; + device_set_desc(dev, + "enhanced floppy controller (i82077, NE72065 or clone)"); + fdc->fdct = FDC_ENHANCED; break; default: device_set_desc(dev, "generic floppy controller"); @@ -1239,7 +1263,7 @@ fdc_detach(device_t dev) static void fdc_add_child(device_t dev, const char *name, int unit) { - int disabled; + int disabled, flags; struct fdc_ivars *ivar; device_t child; @@ -1252,6 +1276,8 @@ fdc_add_child(device_t dev, const char *name, int unit) if (child == NULL) return; device_set_ivars(child, ivar); + if (resource_int_value(name, unit, "flags", &flags) == 0) + device_set_flags(child, flags); if (resource_int_value(name, unit, "disabled", &disabled) == 0 && disabled != 0) device_disable(child); @@ -1318,11 +1344,14 @@ fdc_attach(device_t dev) static int fdc_print_child(device_t me, device_t child) { - int retval = 0; + int retval = 0, flags; retval += bus_print_child_header(me, child); - retval += printf(" on %s drive %d\n", device_get_nameunit(me), + retval += printf(" on %s drive %d", device_get_nameunit(me), fdc_get_fdunit(child)); + if ((flags = device_get_flags(me)) != 0) + retval += printf(" flags %#x", flags); + retval += printf("\n"); return (retval); } @@ -1384,66 +1413,54 @@ DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, 0, 0); #endif /* NCARD > 0 */ -static struct { - char *match; - int minor; - int link; -} fd_suffix[] = { - /* - * Genuine clone devices must come first, and their number must - * match NCLONEDEVS above. - */ - { ".1720", 1, 0 }, - { ".1480", 2, 0 }, - { ".1440", 3, 0 }, - { ".1200", 4, 0 }, - { ".820", 5, 0 }, - { ".800", 6, 0 }, - { ".720", 7, 0 }, - { ".360", 8, 0 }, - { ".640", 9, 0 }, - { ".1232", 10, 0 }, -#ifdef PC98 - { ".1280", 11, 0 }, - { ".1476", 12, 0 }, -#endif - { "a", 0, 1 }, - { "b", 0, 1 }, - { "c", 0, 1 }, - { "d", 0, 1 }, - { "e", 0, 1 }, - { "f", 0, 1 }, - { "g", 0, 1 }, - { "h", 0, 1 }, - { 0, 0 } -}; - +/* + * Create a clone device upon request by devfs. + */ static void fd_clone(void *arg, char *name, int namelen, dev_t *dev) { struct fd_data *fd; - int u, d, i; + int i, u; char *n; + size_t l; fd = (struct fd_data *)arg; if (*dev != NODEV) return; if (dev_stdclone(name, &n, "fd", &u) != 2) return; - for (i = 0; ; i++) { - if (fd_suffix[i].match == NULL) - return; - if (strcmp(n, fd_suffix[i].match)) - continue; - d = fd_suffix[i].minor; - break; - } - if (fd_suffix[i].link == 0) { - *dev = make_dev(&fd_cdevsw, (u << 6) + d, - UID_ROOT, GID_OPERATOR, 0640, name); - fd->clonedevs[i] = *dev; - } else { + l = strlen(n); + if (l == 1 && *n >= 'a' && *n <= 'h') { + /* + * Trailing letters a through h denote + * pseudo-partitions. We don't support true + * (UFS-style) partitions, so we just implement them + * as symlinks if someone asks us nicely. + */ *dev = make_dev_alias(fd->masterdev, name); + return; + } + if (l >= 2 && l <= 5 && *n == '.') { + /* + * Trailing numbers, preceded by a dot, denote + * subdevices for different densities. Historically, + * they have been named by density (like fd0.1440), + * but we allow arbitrary numbers between 1 and 4 + * digits, so fd0.1 through fd0.15 are possible as + * well. + */ + for (i = 1; i < l; i++) + if (n[i] < '0' || n[i] > '9') + return; + for (i = 0; i < NUMDENS - 1; i++) + if (fd->clonedevs[i] == NODEV) { + *dev = make_dev(&fd_cdevsw, + FDNUMTOUNIT(u) + i + 1, + UID_ROOT, GID_OPERATOR, 0640, + name); + fd->clonedevs[i] = *dev; + return; + } } } @@ -1453,99 +1470,92 @@ fd_clone(void *arg, char *name, int namelen, dev_t *dev) static int fd_probe(device_t dev) { -#ifdef PC98 - u_int fdt; -#else int i; - u_int fdt, st0, st3; +#ifndef PC98 + u_int st0, st3; #endif struct fd_data *fd; struct fdc_data *fdc; fdsu_t fdsu; -#ifndef PC98 - static int fd_fifo = 0; -#endif + int flags; fdsu = *(int *)device_get_ivars(dev); /* xxx cheat a bit... */ fd = device_get_softc(dev); fdc = device_get_softc(device_get_parent(dev)); + flags = device_get_flags(dev); bzero(fd, sizeof *fd); fd->dev = dev; fd->fdc = fdc; fd->fdsu = fdsu; fd->fdu = device_get_unit(dev); + fd->flags = FD_UA; /* make sure fdautoselect() will be called */ + fd->type = FD_DTYPE(flags); #ifdef PC98 - /* look up what bios thinks we have */ - switch (fd->fdu) { - case 0: case 1: case 2: case 3: + if (fd->type == FDT_NONE && fd->fdu >= 0 && fd->fdu <= 3) { + /* Look up what the BIOS thinks we have. */ if ((PC98_SYSTEM_PARAMETER(0x5ae) >> fd->fdu) & 0x01) - fdt = FDT_144M; + fd->type = FDT_144M; #ifdef EPSON_NRDISK else if ((PC98_SYSTEM_PARAMETER(0x55c) >> fd->fdu) & 0x01) { - fdt = FDT_12M; + fd->type = FDT_12M; switch (epson_machine_id) { - case 0x20: case 0x27: - if ((PC98_SYSTEM_PARAMETER(0x488) >> fd->fdu) & 0x01) { - if (nrd_check_ready()) { - nrd_LED_on(); - nrdu = fd->fdu; - } else { - fdt = FDT_NONE; + case 0x20: + case 0x27: + if ((PC98_SYSTEM_PARAMETER(0x488) >> fd->fdu) + & 0x01) { + if (nrd_check_ready()) { + nrd_LED_on(); + nrdu = fd->fdu; + } else { + fd->type = FDT_NONE; + } } - } + break; } } #else /* !EPSON_NRDISK */ else if ((PC98_SYSTEM_PARAMETER(0x55c) >> fd->fdu) & 0x01) { - fdt = FDT_12M; + fd->type = FDT_12M; switch (epson_machine_id) { - case 0x20: case 0x27: - if ((PC98_SYSTEM_PARAMETER(0x488) >> fd->fdu) & 0x01) - fdt = FDT_NONE; + case 0x20: + case 0x27: + if ((PC98_SYSTEM_PARAMETER(0x488) >> fd->fdu) + & 0x01) + fd->type = FDT_NONE; + break; } } #endif /* EPSON_NRDISK */ - else - fdt = FDT_NONE; - break; - default: - fdt = FDT_NONE; - break; } -#else -#ifdef __i386__ - /* look up what bios thinks we have */ - switch (fd->fdu) { - case 0: - if ((fdc->flags & FDC_ISPCMCIA)) - fdt = RTCFDT_144M; - else if (device_get_flags(fdc->fdc_dev) & FDC_PRETEND_D0) - fdt = RTCFDT_144M | RTCFDT_144M_PRETENDED; - else - fdt = (rtcin(RTC_FDISKETTE) & 0xf0); - break; - case 1: - fdt = ((rtcin(RTC_FDISKETTE) << 4) & 0xf0); - break; - default: - fdt = RTCFDT_NONE; - break; +#else /* PC98 */ +#if _MACHINE_ARCH == i386 + if (fd->type == FDT_NONE && (fd->fdu == 0 || fd->fdu == 1)) { + /* Look up what the BIOS thinks we have. */ + if (fd->fdu == 0) { + if ((fdc->flags & FDC_ISPCMCIA)) + /* + * Somewhat special. No need to force the + * user to set device flags, since the Y-E + * Data PCMCIA floppy is always a 1.44 MB + * device. + */ + fd->type = FDT_144M; + else + fd->type = (rtcin(RTC_FDISKETTE) & 0xf0) >> 4; + } else { + fd->type = rtcin(RTC_FDISKETTE) & 0x0f; + } + if (fd->type == FDT_288M_1) + fd->type = FDT_288M; } -#else - fdt = RTCFDT_144M; /* XXX probably */ -#endif -#endif +#endif /* _MACHINE_ARCH == i386 */ +#endif /* PC98 */ /* is there a unit? */ -#ifdef PC98 - if (fdt == FDT_NONE) - return (ENXIO); -#else - if (fdt == RTCFDT_NONE) + if (fd->type == FDT_NONE) return (ENXIO); -#endif #ifndef PC98 /* select it */ @@ -1554,68 +1564,56 @@ fd_probe(device_t dev) DELAY(1000000); /* 1 sec */ /* XXX This doesn't work before the first set_motor() */ - if (fd_fifo == 0 && fdc->fdct != FDC_NE765 && fdc->fdct != FDC_UNKNOWN - && (device_get_flags(fdc->fdc_dev) & FDC_NO_FIFO) == 0 - && enable_fifo(fdc) == 0) { + if ((fdc->flags & FDC_HAS_FIFO) == 0 && + fdc->fdct == FDC_ENHANCED && + (device_get_flags(fdc->fdc_dev) & FDC_NO_FIFO) == 0 && + enable_fifo(fdc) == 0) { device_printf(device_get_parent(dev), "FIFO enabled, %d bytes threshold\n", fifo_threshold); } - fd_fifo = 1; - - if ((fd_cmd(fdc, 2, NE7CMD_SENSED, fdsu, 1, &st3) == 0) - && (st3 & NE7_ST3_T0)) { - /* if at track 0, first seek inwards */ - /* seek some steps: */ - fd_cmd(fdc, 3, NE7CMD_SEEK, fdsu, 10, 0); - DELAY(300000); /* ...wait a moment... */ - fd_sense_int(fdc, 0, 0); /* make ctrlr happy */ - } - /* If we're at track 0 first seek inwards. */ - if ((fd_sense_drive_status(fdc, &st3) == 0) && (st3 & NE7_ST3_T0)) { - /* Seek some steps... */ - if (fd_cmd(fdc, 3, NE7CMD_SEEK, fdsu, 10, 0) == 0) { - /* ...wait a moment... */ - DELAY(300000); - /* make ctrlr happy: */ - fd_sense_int(fdc, 0, 0); + if ((flags & FD_NO_PROBE) == 0) { + /* If we're at track 0 first seek inwards. */ + if ((fd_sense_drive_status(fdc, &st3) == 0) && + (st3 & NE7_ST3_T0)) { + /* Seek some steps... */ + if (fd_cmd(fdc, 3, NE7CMD_SEEK, fdsu, 10, 0) == 0) { + /* ...wait a moment... */ + DELAY(300000); + /* make ctrlr happy: */ + fd_sense_int(fdc, 0, 0); + } } - } - for (i = 0; i < 2; i++) { - /* - * we must recalibrate twice, just in case the - * heads have been beyond cylinder 76, since most - * FDCs still barf when attempting to recalibrate - * more than 77 steps - */ - /* go back to 0: */ - if (fd_cmd(fdc, 2, NE7CMD_RECAL, fdsu, 0) == 0) { - /* a second being enough for full stroke seek*/ - DELAY(i == 0 ? 1000000 : 300000); - - /* anything responding? */ - if (fd_sense_int(fdc, &st0, 0) == 0 && - (st0 & NE7_ST0_EC) == 0) - break; /* already probed succesfully */ + for (i = 0; i < 2; i++) { + /* + * we must recalibrate twice, just in case the + * heads have been beyond cylinder 76, since + * most FDCs still barf when attempting to + * recalibrate more than 77 steps + */ + /* go back to 0: */ + if (fd_cmd(fdc, 2, NE7CMD_RECAL, fdsu, 0) == 0) { + /* a second being enough for full stroke seek*/ + DELAY(i == 0 ? 1000000 : 300000); + + /* anything responding? */ + if (fd_sense_int(fdc, &st0, 0) == 0 && + (st0 & NE7_ST0_EC) == 0) + break; /* already probed succesfully */ + } } } set_motor(fdc, fdsu, TURNOFF); - if (st0 & NE7_ST0_EC) /* no track 0 -> no drive present */ + if ((flags & FD_NO_PROBE) == 0 && + (st0 & NE7_ST0_EC) != 0) /* no track 0 -> no drive present */ return (ENXIO); #endif /* PC98 */ - fd->track = FD_NO_TRACK; - fd->fdc = fdc; - fd->fdsu = fdsu; - fd->options = 0; - callout_handle_init(&fd->toffhandle); - callout_handle_init(&fd->tohandle); - #ifdef PC98 - switch (fdt) { + switch (fd->type) { case FDT_144M: /* Check 3mode I/F */ fd->pc98_trans = 0; @@ -1624,7 +1622,7 @@ fd_probe(device_t dev) if (!(bus_space_read_1(fdc->sc_fdemsiot, fdc->sc_fdemsioh, 0) & 0x01)) { device_set_desc(dev, "1.44M FDD"); - fd->type = FD_1440; + fd->type = FDT_144M; break; } @@ -1637,45 +1635,61 @@ fd_probe(device_t dev) device_set_desc(dev, "EPSON RAM DRIVE"); nrd_LED_off(); } else -#endif device_set_desc(dev, "1M/640K FDD"); - fd->type = FD_1200; - fd->pc98_trans = 0; +#else + device_set_desc(dev, "1M/640K FDD"); +#endif + fd->type = FDT_12M; break; default: return (ENXIO); } #else - switch (fdt) { - case RTCFDT_12M: + switch (fd->type) { + case FDT_12M: device_set_desc(dev, "1200-KB 5.25\" drive"); - fd->type = FD_1200; + fd->type = FDT_12M; break; - case RTCFDT_144M | RTCFDT_144M_PRETENDED: - device_set_desc(dev, "config-pretended 1440-MB 3.5\" drive"); - fdt = RTCFDT_144M; - fd->type = FD_1440; - case RTCFDT_144M: + case FDT_144M: device_set_desc(dev, "1440-KB 3.5\" drive"); - fd->type = FD_1440; + fd->type = FDT_144M; break; - case RTCFDT_288M: - case RTCFDT_288M_1: + case FDT_288M: device_set_desc(dev, "2880-KB 3.5\" drive (in 1440-KB mode)"); - fd->type = FD_1440; + fd->type = FDT_288M; break; - case RTCFDT_360K: + case FDT_360K: device_set_desc(dev, "360-KB 5.25\" drive"); - fd->type = FD_360; + fd->type = FDT_360K; break; - case RTCFDT_720K: - printf("720-KB 3.5\" drive"); - fd->type = FD_720; + case FDT_720K: + device_set_desc(dev, "720-KB 3.5\" drive"); + fd->type = FDT_720K; break; default: return (ENXIO); } #endif + fd->track = FD_NO_TRACK; + fd->fdc = fdc; + fd->fdsu = fdsu; + fd->options = 0; +#ifdef PC98 + fd->pc98_trans = 0; +#endif + callout_handle_init(&fd->toffhandle); + callout_handle_init(&fd->tohandle); + + /* initialize densities for subdevices */ +#ifdef PC98 + for (i = 0; i < NUMDENS; i++) + memcpy(fd->fts + i, fd_searchlist_144m + i, + sizeof(struct fd_type)); +#else + for (i = 0; i < NUMDENS; i++) + memcpy(fd->fts + i, fd_native_types + fd->type, + sizeof(struct fd_type)); +#endif return (0); } @@ -1694,7 +1708,7 @@ fd_attach(device_t dev) fd->clonetag = EVENTHANDLER_REGISTER(dev_clone, fd_clone, fd, 1000); fd->masterdev = make_dev(&fd_cdevsw, fd->fdu << 6, UID_ROOT, GID_OPERATOR, 0640, "fd%d", fd->fdu); - for (i = 0; i < NCLONEDEVS; i++) + for (i = 0; i < NUMDENS - 1; i++) fd->clonedevs[i] = NODEV; devstat_add_entry(&fd->device_stats, device_get_name(dev), device_get_unit(dev), 0, DEVSTAT_NO_ORDERED_TAGS, @@ -1713,7 +1727,7 @@ fd_detach(device_t dev) untimeout(fd_turnoff, fd, fd->toffhandle); devstat_remove_entry(&fd->device_stats); destroy_dev(fd->masterdev); - for (i = 0; i < NCLONEDEVS; i++) + for (i = 0; i < NUMDENS - 1; i++) if (fd->clonedevs[i] != NODEV) destroy_dev(fd->clonedevs[i]); cdevsw_remove(&fd_cdevsw); @@ -1925,87 +1939,85 @@ Fdopen(dev_t dev, int flags, int mode, struct thread *td) int type = FDTYPE(minor(dev)); fd_p fd; fdc_p fdc; + int rv, unitattn, dflags; - /* check bounds */ if ((fd = devclass_get_softc(fd_devclass, fdu)) == 0) return (ENXIO); fdc = fd->fdc; - if ((fdc == NULL) || (fd->type == NO_TYPE)) + if ((fdc == NULL) || (fd->type == FDT_NONE)) return (ENXIO); if (type > NUMDENS) return (ENXIO); -#ifdef PC98 - if (type == 0) - type = FD_1200; /* XXX backward compatibility */ - else - ; /* XXX any types are OK for PC-98 */ + dflags = device_get_flags(fd->dev); + /* + * This is a bit bogus. It's still possible that e. g. a + * descriptor gets inherited to a child, but then it's at + * least for the same subdevice. By checking FD_OPEN here, we + * can ensure that a device isn't attempted to be opened with + * different densities at the same time where the second open + * could clobber the settings from the first one. + */ + if (fd->flags & FD_OPEN) + return (EBUSY); +#ifdef PC98 if (pc98_fd_check_ready(fdu) == -1) return(EIO); -#else - if (type == 0) - type = fd->type; - else { - /* - * For each type of basic drive, make sure we are trying - * to open a type it can do, - */ - if (type != fd->type) { - switch (fd->type) { - case FD_360: - return (ENXIO); - case FD_720: - if ( type != FD_820 - && type != FD_800 - && type != FD_640 - ) - return (ENXIO); - break; - case FD_1200: - switch (type) { - case FD_1480: - type = FD_1480in5_25; - break; - case FD_1440: - type = FD_1440in5_25; - break; - case FD_1232: - break; - case FD_820: - type = FD_820in5_25; - break; - case FD_800: - type = FD_800in5_25; - break; - case FD_720: - type = FD_720in5_25; - break; - case FD_640: - type = FD_640in5_25; - break; - case FD_360: - type = FD_360in5_25; - break; - default: - return(ENXIO); - } - break; - case FD_1440: - if ( type != FD_1720 - && type != FD_1480 - && type != FD_1200 - && type != FD_820 - && type != FD_800 - && type != FD_720 - && type != FD_640 - ) - return(ENXIO); - break; +#endif + + if (type == 0) { + if (flags & FNONBLOCK) { + /* + * Unfortunately, physio(9) discards its ioflag + * argument, thus preventing us from seeing the + * IO_NDELAY bit. So we need to keep track + * ourselves. + */ + fd->flags |= FD_NONBLOCK; + fd->ft = 0; + } else { + /* + * Figure out a unit attention condition. + * + * If UA has been forced, proceed. + * + * If motor is off, turn it on for a moment + * and select our drive, in order to read the + * UA hardware signal. + * + * If motor is on, and our drive is currently + * selected, just read the hardware bit. + * + * If motor is on, but active for another + * drive on that controller, we are lost. We + * cannot risk to deselect the other drive, so + * we just assume a forced UA condition to be + * on the safe side. + */ + unitattn = 0; + if ((dflags & FD_NO_CHLINE) != 0 || + (fd->flags & FD_UA) != 0) { + unitattn = 1; + fd->flags &= ~FD_UA; +#ifndef PC98 + } else if (fdc->fdout & (FDO_MOEN0 | FDO_MOEN1 | + FDO_MOEN2 | FDO_MOEN3)) { + if ((fdc->fdout & FDO_FDSEL) == fd->fdsu) + unitattn = fdin_rd(fdc) & FDI_DCHG; + else + unitattn = 1; + } else { + set_motor(fdc, fd->fdsu, TURNON); + unitattn = fdin_rd(fdc) & FDI_DCHG; + set_motor(fdc, fd->fdsu, TURNOFF); +#endif /* PC98 */ } + if (unitattn && (rv = fdautoselect(dev)) != 0) + return (rv); } + } else { + fd->ft = fd->fts + type; } -#endif - fd->ft = fd_types + type - 1; fd->flags |= FD_OPEN; /* * Clearing the DMA overrun counter at open time is a bit messy. @@ -2030,7 +2042,7 @@ fdclose(dev_t dev, int flags, int mode, struct thread *td) struct fd_data *fd; fd = devclass_get_softc(fd_devclass, fdu); - fd->flags &= ~FD_OPEN; + fd->flags &= ~(FD_OPEN | FD_NONBLOCK); fd->options &= ~(FDOPT_NORETRY | FDOPT_NOERRLOG | FDOPT_NOERROR); return (0); @@ -2052,13 +2064,18 @@ fdstrategy(struct bio *bp) panic("fdstrategy: buf for nonexistent device (%#lx, %#lx)", (u_long)major(bp->bio_dev), (u_long)minor(bp->bio_dev)); fdc = fd->fdc; - if (fd->type == NO_TYPE) { + if (fd->type == FDT_NONE || fd->ft == 0) { bp->bio_error = ENXIO; bp->bio_flags |= BIO_ERROR; goto bad; } fdblk = 128 << (fd->ft->secsize); if (bp->bio_cmd != BIO_FORMAT && bp->bio_cmd != BIO_RDSECTID) { + if (fd->flags & FD_NONBLOCK) { + bp->bio_error = EAGAIN; + bp->bio_flags |= BIO_ERROR; + goto bad; + } if (bp->bio_blkno < 0) { printf( "fd%d: fdstrat: bad request blkno = %lu, bcount = %ld\n", @@ -2226,6 +2243,106 @@ fdcpio(fdc_p fdc, long flags, caddr_t addr, u_int count) } /* + * Try figuring out the density of the media present in our device. + */ +static int +fdautoselect(dev_t dev) +{ + fdu_t fdu; + fd_p fd; + struct fd_type *fdtp; + struct fdc_readid id; + int i, n, oopts, rv; + + fdu = FDUNIT(minor(dev)); + fd = devclass_get_softc(fd_devclass, fdu); + + switch (fd->type) { + default: + return (ENXIO); + +#ifndef PC98 + case FDT_360K: + case FDT_720K: + /* no autoselection on those drives */ + fd->ft = fd_native_types + fd->type; + return (0); +#endif + + case FDT_12M: + fdtp = fd_searchlist_12m; + n = sizeof fd_searchlist_12m / sizeof(struct fd_type); + break; + + case FDT_144M: + fdtp = fd_searchlist_144m; + n = sizeof fd_searchlist_144m / sizeof(struct fd_type); + break; + +#ifndef PC98 + case FDT_288M: + fdtp = fd_searchlist_288m; + n = sizeof fd_searchlist_288m / sizeof(struct fd_type); + break; +#endif + } + + /* + * Try reading sector ID fields, first at cylinder 0, head 0, + * then at cylinder 2, head N. We don't probe cylinder 1, + * since for 5.25in DD media in a HD drive, there are no data + * to read (2 step pulses per media cylinder required). For + * two-sided media, the second probe always goes to head 1, so + * we can tell them apart from single-sided media. As a + * side-effect this means that single-sided media should be + * mentioned in the search list after two-sided media of an + * otherwise identical density. Media with a different number + * of sectors per track but otherwise identical parameters + * cannot be distinguished at all. + * + * If we successfully read an ID field on both cylinders where + * the recorded values match our expectation, we are done. + * Otherwise, we try the next density entry from the table. + * + * Stepping to cylinder 2 has the side-effect of clearing the + * unit attention bit. + */ + oopts = fd->options; + fd->options |= FDOPT_NOERRLOG | FDOPT_NORETRY; + for (i = 0; i < n; i++, fdtp++) { + fd->ft = fdtp; + + id.cyl = id.head = 0; + rv = fdmisccmd(dev, BIO_RDSECTID, &id); + if (rv != 0) + continue; + if (id.cyl != 0 || id.head != 0 || + id.secshift != fdtp->secsize) + continue; + id.cyl = 2; + id.head = fd->ft->heads - 1; + rv = fdmisccmd(dev, BIO_RDSECTID, &id); + if (id.cyl != 2 || id.head != fdtp->heads - 1 || + id.secshift != fdtp->secsize) + continue; + if (rv == 0) + break; + } + + fd->options = oopts; + if (i == n) { + device_printf(fd->dev, "autoselection failed\n"); + fd->ft = 0; + return (EIO); + } else { + device_printf(fd->dev, "autoselected %d KB medium\n", + fd->ft->size / 2); + return (0); + } +} + + +/* * The controller state machine. * * If it returns a non zero value, it should be called again immediately. @@ -2235,7 +2352,7 @@ fdstate(fdc_p fdc) { struct fdc_readid *idp; int read, format, rdsectid, cylinder, head, i, sec = 0, sectrac; - int st0, cyl, st3, idf; + int st0, cyl, st3, idf, ne7cmd, mfm, steptrac; unsigned long blknum; fdu_t fdu = fdc->fdu; fd_p fd; @@ -2272,6 +2389,8 @@ fdstate(fdc_p fdc) if (fdc->fd && (fd != fdc->fd)) device_printf(fd->dev, "confused fd pointers\n"); read = bp->bio_cmd == BIO_READ; + mfm = (fd->ft->flags & FL_MFM)? NE7CMD_MFM: 0; + steptrac = (fd->ft->flags & FL_2STEP)? 2: 1; if (read) idf = ISADMA_READ; else @@ -2305,7 +2424,7 @@ fdstate(fdc_p fdc) pc98_trans_prev = pc98_trans; } if (pc98_trans != fd->pc98_trans) { - if (fd->type == FD_1440) { + if (fd->type == FDT_144M) { bus_space_write_1(fdc->sc_fdemsiot, fdc->sc_fdemsioh, 0, @@ -2379,8 +2498,7 @@ fdstate(fdc_p fdc) pc98_fd_check_ready(fdu); #endif if (fd_cmd(fdc, 3, NE7CMD_SEEK, - fd->fdsu, cylinder * fd->ft->steptrac, - 0)) + fd->fdsu, cylinder * steptrac, 0)) { /* * Seek command not accepted, looks like @@ -2409,7 +2527,7 @@ fdstate(fdc_p fdc) /* Make sure seek really happened. */ if(fd->track == FD_NO_TRACK) { - int descyl = cylinder * fd->ft->steptrac; + int descyl = cylinder * steptrac; do { /* * This might be a "ready changed" interrupt, @@ -2497,6 +2615,8 @@ fdstate(fdc_p fdc) sec = blknum % (sectrac * fd->ft->heads); head = sec / sectrac; sec = sec % sectrac + 1; + if (head != 0 && fd->ft->offset_side2 != 0) + sec += fd->ft->offset_side2; fd->hddrv = ((head&1)<<2)+fdu; if(format || !(read || rdsectid)) @@ -2535,6 +2655,7 @@ fdstate(fdc_p fdc) } if (format) { + ne7cmd = NE7CMD_FORMAT | mfm; if (fdc->flags & FDC_NODMA) { /* * This seems to be necessary for @@ -2556,7 +2677,7 @@ fdstate(fdc_p fdc) } /* formatting */ - if(fd_cmd(fdc, 6, NE7CMD_FORMAT, head << 2 | fdu, + if(fd_cmd(fdc, 6, ne7cmd, head << 2 | fdu, finfo->fd_formb_secshift, finfo->fd_formb_nsecs, finfo->fd_formb_gaplen, @@ -2571,13 +2692,15 @@ fdstate(fdc_p fdc) return (retrier(fdc)); } } else if (rdsectid) { - if (fd_cmd(fdc, 2, NE7CMD_READID, head << 2 | fdu, 0)) { + ne7cmd = NE7CMD_READID | mfm; + if (fd_cmd(fdc, 2, ne7cmd, head << 2 | fdu, 0)) { /* controller jamming */ fdc->retry = 6; return (retrier(fdc)); } } else { /* read or write operation */ + ne7cmd = (read ? NE7CMD_READ | NE7CMD_SK : NE7CMD_WRITE) | mfm; if (fdc->flags & FDC_NODMA) { /* * This seems to be necessary even when @@ -2595,7 +2718,7 @@ fdstate(fdc_p fdc) fdblk); } if (fd_cmd(fdc, 9, - (read ? NE7CMD_READ : NE7CMD_WRITE), + ne7cmd, head << 2 | fdu, /* head & unit */ fd->track, /* track */ head, @@ -3007,15 +3130,115 @@ fdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) struct fdc_status *fsp; struct fdc_readid *rid; size_t fdblk; - int error; + int error, type; fdu = FDUNIT(minor(dev)); + type = FDTYPE(minor(dev)); fd = devclass_get_softc(fd_devclass, fdu); #ifdef PC98 pc98_fd_check_ready(fdu); #endif + /* + * First, handle everything that could be done with + * FD_NONBLOCK still being set. + */ + switch (cmd) { + case FIONBIO: + if (*(int *)addr != 0) + fd->flags |= FD_NONBLOCK; + else { + if (fd->ft == 0) { + /* + * No drive type has been selected yet, + * cannot turn FNONBLOCK off. + */ + return (EINVAL); + } + fd->flags &= ~FD_NONBLOCK; + } + return (0); + + case FIOASYNC: + /* keep the generic fcntl() code happy */ + return (0); + + case FD_GTYPE: /* get drive type */ + if (fd->ft == 0) + /* no type known yet, return the native type */ + *(struct fd_type *)addr = fd_native_types[fd->type]; + else + *(struct fd_type *)addr = *fd->ft; + return (0); + + case FD_STYPE: /* set drive type */ + if (type == 0) { + /* + * Allow setting drive type temporarily iff + * currently unset. Used for fdformat so any + * user can set it, and then start formatting. + */ + if (fd->ft) + return (EINVAL); /* already set */ + fd->ft = fd->fts; + *fd->ft = *(struct fd_type *)addr; + fd->flags |= FD_UA; + } else { + /* + * Set density definition permanently. Only + * allow for superuser. + */ + if (suser_td(td) != 0) + return (EPERM); + fd->fts[type] = *(struct fd_type *)addr; + } + return (0); + + case FD_GOPTS: /* get drive options */ + *(int *)addr = fd->options + (type == 0? FDOPT_AUTOSEL: 0); + return (0); + + case FD_SOPTS: /* set drive options */ + fd->options = *(int *)addr & ~FDOPT_AUTOSEL; + return (0); + +#ifdef FDC_DEBUG + case FD_DEBUG: + if ((fd_debug != 0) != (*(int *)addr != 0)) { + fd_debug = (*(int *)addr != 0); + printf("fd%d: debugging turned %s\n", + fd->fdu, fd_debug ? "on" : "off"); + } + return (0); +#endif + + case FD_CLRERR: + if (suser_td(td) != 0) + return (EPERM); + fd->fdc->fdc_errs = 0; + return (0); + + case FD_GSTAT: + fsp = (struct fdc_status *)addr; + if ((fd->fdc->flags & FDC_STAT_VALID) == 0) + return (EINVAL); + memcpy(fsp->status, fd->fdc->status, 7 * sizeof(u_int)); + return (0); + + case FD_GDTYPE: + *(enum fd_drivetype *)addr = fd->type; + return (0); + } + + /* + * Now handle everything else. Make sure we have a valid + * drive type. + */ + if (fd->flags & FD_NONBLOCK) + return (EAGAIN); + if (fd->ft == 0) + return (ENXIO); fdblk = 128 << fd->ft->secsize; error = 0; diff --git a/sys/pc98/pc98/fdreg.h b/sys/pc98/pc98/fdreg.h index 4ec923e..e1841c9 100644 --- a/sys/pc98/pc98/fdreg.h +++ b/sys/pc98/pc98/fdreg.h @@ -74,14 +74,11 @@ #define FDCTL 7 /* Control Register (W) */ #endif /* PC98 */ -#ifndef FDC_500KBPS -# define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ -# define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ -# define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ -# define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */ - /* for some controllers 1MPBS instead */ -#endif /* FDC_500KBPS */ - +/* + * The definitions for FDC_500KBPS etc. have been moved out to <sys/fdcio.h> + * since they need to be visible in userland. They cover the lower two bits + * of FDCTL when used for output. + */ /* * this is the secret PIO data port (offset from base) */ |