xp.c revision 1.1.2.4
1 1.1.2.4 skrll /* $NetBSD: xp.c,v 1.1.2.4 2017/08/28 17:51:43 skrll Exp $ */ 2 1.1.2.2 skrll 3 1.1.2.2 skrll /*- 4 1.1.2.2 skrll * Copyright (c) 2016 Izumi Tsutsui. All rights reserved. 5 1.1.2.2 skrll * 6 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 7 1.1.2.2 skrll * modification, are permitted provided that the following conditions 8 1.1.2.2 skrll * are met: 9 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 10 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 11 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 12 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 13 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 14 1.1.2.2 skrll * 15 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 1.1.2.2 skrll * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 1.1.2.2 skrll * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 1.1.2.2 skrll * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 1.1.2.2 skrll * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 1.1.2.2 skrll * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 1.1.2.2 skrll * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 1.1.2.2 skrll * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 1.1.2.2 skrll * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 1.1.2.2 skrll * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 1.1.2.2 skrll */ 26 1.1.2.2 skrll 27 1.1.2.2 skrll /* 28 1.1.2.2 skrll * LUNA's Hitachi HD647180 "XP" I/O processor driver 29 1.1.2.2 skrll */ 30 1.1.2.2 skrll 31 1.1.2.2 skrll #include <sys/cdefs.h> 32 1.1.2.4 skrll __KERNEL_RCSID(0, "$NetBSD: xp.c,v 1.1.2.4 2017/08/28 17:51:43 skrll Exp $"); 33 1.1.2.2 skrll 34 1.1.2.2 skrll #include <sys/param.h> 35 1.1.2.2 skrll #include <sys/systm.h> 36 1.1.2.2 skrll #include <sys/conf.h> 37 1.1.2.2 skrll #include <sys/device.h> 38 1.1.2.2 skrll #include <sys/ioctl.h> 39 1.1.2.2 skrll #include <sys/kmem.h> 40 1.1.2.2 skrll #include <sys/errno.h> 41 1.1.2.2 skrll 42 1.1.2.2 skrll #include <uvm/uvm_extern.h> 43 1.1.2.2 skrll 44 1.1.2.2 skrll #include <machine/autoconf.h> 45 1.1.2.2 skrll #include <machine/xpio.h> 46 1.1.2.2 skrll 47 1.1.2.2 skrll #include "ioconf.h" 48 1.1.2.2 skrll 49 1.1.2.2 skrll #define XP_SHM_BASE 0x71000000 50 1.1.2.2 skrll #define XP_SHM_SIZE 0x00010000 /* 64KB for XP; rest 64KB for lance */ 51 1.1.2.2 skrll #define XP_TAS_ADDR 0x61000000 52 1.1.2.2 skrll 53 1.1.2.2 skrll struct xp_softc { 54 1.1.2.2 skrll device_t sc_dev; 55 1.1.2.2 skrll 56 1.1.2.2 skrll vaddr_t sc_shm_base; 57 1.1.2.2 skrll vsize_t sc_shm_size; 58 1.1.2.2 skrll vaddr_t sc_tas; 59 1.1.2.2 skrll 60 1.1.2.2 skrll bool sc_isopen; 61 1.1.2.2 skrll }; 62 1.1.2.2 skrll 63 1.1.2.2 skrll static int xp_match(device_t, cfdata_t, void *); 64 1.1.2.2 skrll static void xp_attach(device_t, device_t, void *); 65 1.1.2.2 skrll 66 1.1.2.2 skrll dev_type_open(xp_open); 67 1.1.2.2 skrll dev_type_close(xp_close); 68 1.1.2.2 skrll dev_type_read(xp_read); 69 1.1.2.2 skrll dev_type_write(xp_write); 70 1.1.2.2 skrll dev_type_ioctl(xp_ioctl); 71 1.1.2.2 skrll dev_type_mmap(xp_mmap); 72 1.1.2.2 skrll 73 1.1.2.2 skrll const struct cdevsw xp_cdevsw = { 74 1.1.2.2 skrll .d_open = xp_open, 75 1.1.2.2 skrll .d_close = xp_close, 76 1.1.2.2 skrll .d_read = xp_read, 77 1.1.2.2 skrll .d_write = xp_write, 78 1.1.2.2 skrll .d_ioctl = xp_ioctl, 79 1.1.2.2 skrll .d_stop = nostop, 80 1.1.2.2 skrll .d_tty = notty, 81 1.1.2.2 skrll .d_poll = nopoll, 82 1.1.2.2 skrll .d_mmap = xp_mmap, 83 1.1.2.2 skrll .d_kqfilter = nokqfilter, 84 1.1.2.2 skrll .d_discard = nodiscard, 85 1.1.2.2 skrll .d_flag = 0 86 1.1.2.2 skrll }; 87 1.1.2.2 skrll 88 1.1.2.2 skrll CFATTACH_DECL_NEW(xp, sizeof(struct xp_softc), 89 1.1.2.2 skrll xp_match, xp_attach, NULL, NULL); 90 1.1.2.2 skrll 91 1.1.2.2 skrll /* #define XP_DEBUG */ 92 1.1.2.2 skrll 93 1.1.2.2 skrll #ifdef XP_DEBUG 94 1.1.2.2 skrll #define XP_DEBUG_ALL 0xff 95 1.1.2.2 skrll uint32_t xp_debug = 0; 96 1.1.2.2 skrll #define DPRINTF(x, y) if (xp_debug & (x)) printf y 97 1.1.2.2 skrll #else 98 1.1.2.2 skrll #define DPRINTF(x, y) /* nothing */ 99 1.1.2.2 skrll #endif 100 1.1.2.2 skrll 101 1.1.2.2 skrll static bool xp_matched; 102 1.1.2.2 skrll 103 1.1.2.2 skrll /* 104 1.1.2.2 skrll * PIO 0 port C is connected to XP's reset line 105 1.1.2.2 skrll * 106 1.1.2.2 skrll * XXX: PIO port functions should be shared with machdep.c for DIP SWs 107 1.1.2.2 skrll */ 108 1.1.2.2 skrll #define PIO_ADDR 0x49000000 109 1.1.2.2 skrll #define PORT_A 0 110 1.1.2.2 skrll #define PORT_B 1 111 1.1.2.2 skrll #define PORT_C 2 112 1.1.2.2 skrll #define CTRL 3 113 1.1.2.2 skrll 114 1.1.2.2 skrll /* PIO0 Port C bit definition */ 115 1.1.2.2 skrll #define XP_INT1_REQ 0 /* INTR B */ 116 1.1.2.2 skrll /* unused */ /* IBF B */ 117 1.1.2.2 skrll #define XP_INT1_ENA 2 /* INTE B */ 118 1.1.2.2 skrll #define XP_INT5_REQ 3 /* INTR A */ 119 1.1.2.2 skrll #define XP_INT5_ENA 4 /* INTE A */ 120 1.1.2.2 skrll /* unused */ /* IBF A */ 121 1.1.2.2 skrll #define PARITY 6 /* PC6 output to enable parity error */ 122 1.1.2.2 skrll #define XP_RESET 7 /* PC7 output to reset HD647180 XP */ 123 1.1.2.2 skrll 124 1.1.2.2 skrll /* Port control for PC6 and PC7 */ 125 1.1.2.2 skrll #define ON 1 126 1.1.2.2 skrll #define OFF 0 127 1.1.2.2 skrll 128 1.1.2.2 skrll static uint8_t put_pio0c(uint8_t bit, uint8_t set) 129 1.1.2.2 skrll { 130 1.1.2.2 skrll volatile uint8_t * const pio0 = (uint8_t *)PIO_ADDR; 131 1.1.2.2 skrll 132 1.1.2.2 skrll pio0[CTRL] = (bit << 1) | (set & 0x01); 133 1.1.2.2 skrll 134 1.1.2.2 skrll return pio0[PORT_C]; 135 1.1.2.2 skrll } 136 1.1.2.2 skrll 137 1.1.2.2 skrll static int 138 1.1.2.2 skrll xp_match(device_t parent, cfdata_t cf, void *aux) 139 1.1.2.2 skrll { 140 1.1.2.2 skrll struct mainbus_attach_args *maa = aux; 141 1.1.2.2 skrll 142 1.1.2.2 skrll /* only one XP processor */ 143 1.1.2.2 skrll if (xp_matched) 144 1.1.2.2 skrll return 0; 145 1.1.2.2 skrll 146 1.1.2.2 skrll if (strcmp(maa->ma_name, xp_cd.cd_name)) 147 1.1.2.2 skrll return 0; 148 1.1.2.2 skrll 149 1.1.2.2 skrll if (maa->ma_addr != XP_SHM_BASE) 150 1.1.2.2 skrll return 0; 151 1.1.2.2 skrll 152 1.1.2.2 skrll xp_matched = true; 153 1.1.2.2 skrll return 1; 154 1.1.2.2 skrll } 155 1.1.2.2 skrll 156 1.1.2.2 skrll static void 157 1.1.2.2 skrll xp_attach(device_t parent, device_t self, void *aux) 158 1.1.2.2 skrll { 159 1.1.2.2 skrll struct xp_softc *sc = device_private(self); 160 1.1.2.2 skrll 161 1.1.2.2 skrll sc->sc_dev = self; 162 1.1.2.2 skrll 163 1.1.2.2 skrll aprint_normal(": HD647180X I/O processor\n"); 164 1.1.2.2 skrll 165 1.1.2.2 skrll sc->sc_shm_base = XP_SHM_BASE; 166 1.1.2.2 skrll sc->sc_shm_size = XP_SHM_SIZE; 167 1.1.2.2 skrll sc->sc_tas = XP_TAS_ADDR; 168 1.1.2.2 skrll } 169 1.1.2.2 skrll 170 1.1.2.2 skrll int 171 1.1.2.2 skrll xp_open(dev_t dev, int flags, int devtype, struct lwp *l) 172 1.1.2.2 skrll { 173 1.1.2.2 skrll struct xp_softc *sc; 174 1.1.2.2 skrll int unit; 175 1.1.2.2 skrll 176 1.1.2.2 skrll DPRINTF(XP_DEBUG_ALL, ("%s\n", __func__)); 177 1.1.2.2 skrll 178 1.1.2.2 skrll unit = minor(dev); 179 1.1.2.2 skrll sc = device_lookup_private(&xp_cd, unit); 180 1.1.2.2 skrll if (sc == NULL) 181 1.1.2.2 skrll return ENXIO; 182 1.1.2.2 skrll if (sc->sc_isopen) 183 1.1.2.2 skrll return EBUSY; 184 1.1.2.2 skrll 185 1.1.2.2 skrll sc->sc_isopen = true; 186 1.1.2.2 skrll 187 1.1.2.2 skrll return 0; 188 1.1.2.2 skrll } 189 1.1.2.2 skrll 190 1.1.2.2 skrll int 191 1.1.2.2 skrll xp_close(dev_t dev, int flags, int mode, struct lwp *l) 192 1.1.2.2 skrll { 193 1.1.2.2 skrll struct xp_softc *sc; 194 1.1.2.2 skrll int unit; 195 1.1.2.2 skrll 196 1.1.2.2 skrll DPRINTF(XP_DEBUG_ALL, ("%s\n", __func__)); 197 1.1.2.2 skrll 198 1.1.2.2 skrll unit = minor(dev); 199 1.1.2.2 skrll sc = device_lookup_private(&xp_cd, unit); 200 1.1.2.2 skrll sc->sc_isopen = false; 201 1.1.2.2 skrll 202 1.1.2.2 skrll return 0; 203 1.1.2.2 skrll } 204 1.1.2.2 skrll 205 1.1.2.2 skrll int 206 1.1.2.2 skrll xp_ioctl(dev_t dev, u_long cmd, void *addr, int flags, struct lwp *l) 207 1.1.2.2 skrll { 208 1.1.2.2 skrll struct xp_softc *sc; 209 1.1.2.2 skrll int unit, error; 210 1.1.2.2 skrll struct xp_download *downld; 211 1.1.2.2 skrll uint8_t *loadbuf; 212 1.1.2.2 skrll size_t loadsize; 213 1.1.2.2 skrll 214 1.1.2.2 skrll DPRINTF(XP_DEBUG_ALL, ("%s\n", __func__)); 215 1.1.2.2 skrll 216 1.1.2.2 skrll unit = minor(dev); 217 1.1.2.2 skrll sc = device_lookup_private(&xp_cd, unit); 218 1.1.2.2 skrll 219 1.1.2.2 skrll switch (cmd) { 220 1.1.2.2 skrll case XPIOCDOWNLD: 221 1.1.2.2 skrll downld = addr; 222 1.1.2.2 skrll loadsize = downld->size; 223 1.1.2.3 skrll if (loadsize == 0 || loadsize > sc->sc_shm_size) { 224 1.1.2.2 skrll return EINVAL; 225 1.1.2.2 skrll } 226 1.1.2.2 skrll 227 1.1.2.2 skrll loadbuf = kmem_alloc(loadsize, KM_SLEEP); 228 1.1.2.2 skrll error = copyin(downld->data, loadbuf, loadsize); 229 1.1.2.2 skrll if (error == 0) { 230 1.1.2.2 skrll put_pio0c(XP_RESET, ON); 231 1.1.2.2 skrll delay(100); 232 1.1.2.2 skrll memcpy((void *)sc->sc_shm_base, loadbuf, loadsize); 233 1.1.2.2 skrll delay(100); 234 1.1.2.2 skrll put_pio0c(XP_RESET, OFF); 235 1.1.2.2 skrll } else { 236 1.1.2.2 skrll DPRINTF(XP_DEBUG_ALL, ("%s: ioctl failed (err = %d)\n", 237 1.1.2.2 skrll __func__, error)); 238 1.1.2.2 skrll } 239 1.1.2.2 skrll 240 1.1.2.2 skrll kmem_free(loadbuf, loadsize); 241 1.1.2.2 skrll return error; 242 1.1.2.2 skrll 243 1.1.2.2 skrll default: 244 1.1.2.2 skrll return ENOTTY; 245 1.1.2.2 skrll } 246 1.1.2.2 skrll 247 1.1.2.2 skrll panic("%s: cmd (%ld) is not handled", device_xname(sc->sc_dev), cmd); 248 1.1.2.2 skrll } 249 1.1.2.2 skrll 250 1.1.2.2 skrll paddr_t 251 1.1.2.2 skrll xp_mmap(dev_t dev, off_t offset, int prot) 252 1.1.2.2 skrll { 253 1.1.2.2 skrll struct xp_softc *sc; 254 1.1.2.2 skrll int unit; 255 1.1.2.2 skrll paddr_t pa; 256 1.1.2.2 skrll 257 1.1.2.2 skrll pa = -1; 258 1.1.2.2 skrll 259 1.1.2.2 skrll unit = minor(dev); 260 1.1.2.2 skrll sc = device_lookup_private(&xp_cd, unit); 261 1.1.2.2 skrll 262 1.1.2.2 skrll if (offset >= 0 && 263 1.1.2.2 skrll offset < sc->sc_shm_size) { 264 1.1.2.2 skrll pa = m68k_btop(m68k_trunc_page(sc->sc_shm_base) + offset); 265 1.1.2.2 skrll } 266 1.1.2.2 skrll 267 1.1.2.2 skrll return pa; 268 1.1.2.2 skrll } 269 1.1.2.2 skrll 270 1.1.2.2 skrll int 271 1.1.2.2 skrll xp_read(dev_t dev, struct uio *uio, int flags) 272 1.1.2.2 skrll { 273 1.1.2.2 skrll 274 1.1.2.2 skrll return ENODEV; 275 1.1.2.2 skrll } 276 1.1.2.2 skrll 277 1.1.2.2 skrll int 278 1.1.2.2 skrll xp_write(dev_t dev, struct uio *uio, int flags) 279 1.1.2.2 skrll { 280 1.1.2.2 skrll 281 1.1.2.2 skrll return ENODEV; 282 1.1.2.2 skrll } 283
Indexes created Fri Oct 03 02:09:57 GMT 2025