14249382dSDoug Rabson /* 24249382dSDoug Rabson * Copyright (c) 1996, Sujal M. Patel 34249382dSDoug Rabson * All rights reserved. 44249382dSDoug Rabson * 54249382dSDoug Rabson * Redistribution and use in source and binary forms, with or without 64249382dSDoug Rabson * modification, are permitted provided that the following conditions 74249382dSDoug Rabson * are met: 84249382dSDoug Rabson * 1. Redistributions of source code must retain the above copyright 94249382dSDoug Rabson * notice, this list of conditions and the following disclaimer. 104249382dSDoug Rabson * 2. Redistributions in binary form must reproduce the above copyright 114249382dSDoug Rabson * notice, this list of conditions and the following disclaimer in the 124249382dSDoug Rabson * documentation and/or other materials provided with the distribution. 134249382dSDoug Rabson * 144249382dSDoug Rabson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 154249382dSDoug Rabson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 164249382dSDoug Rabson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 174249382dSDoug Rabson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 184249382dSDoug Rabson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 194249382dSDoug Rabson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 204249382dSDoug Rabson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 214249382dSDoug Rabson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 224249382dSDoug Rabson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 234249382dSDoug Rabson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 244249382dSDoug Rabson * SUCH DAMAGE. 254249382dSDoug Rabson * 264249382dSDoug Rabson * $FreeBSD$ 274249382dSDoug Rabson * from: pnp.c,v 1.11 1999/05/06 22:11:19 peter Exp 284249382dSDoug Rabson */ 294249382dSDoug Rabson 304249382dSDoug Rabson #include <sys/param.h> 314249382dSDoug Rabson #include <sys/systm.h> 324249382dSDoug Rabson #include <sys/kernel.h> 334249382dSDoug Rabson #include <sys/module.h> 344249382dSDoug Rabson #include <sys/bus.h> 354249382dSDoug Rabson #include <sys/malloc.h> 364249382dSDoug Rabson #include <isa/isavar.h> 374249382dSDoug Rabson #include <isa/pnpreg.h> 384249382dSDoug Rabson #include <isa/pnpvar.h> 3921c3015aSDoug Rabson #include <machine/bus.h> 404249382dSDoug Rabson 414249382dSDoug Rabson typedef struct _pnp_id { 424249382dSDoug Rabson u_int32_t vendor_id; 434249382dSDoug Rabson u_int32_t serial; 444249382dSDoug Rabson u_char checksum; 454249382dSDoug Rabson } pnp_id; 464249382dSDoug Rabson 474249382dSDoug Rabson struct pnp_set_config_arg { 484249382dSDoug Rabson int csn; /* Card number to configure */ 494249382dSDoug Rabson int ldn; /* Logical device on card */ 504249382dSDoug Rabson }; 514249382dSDoug Rabson 524249382dSDoug Rabson struct pnp_quirk { 534249382dSDoug Rabson u_int32_t vendor_id; /* Vendor of the card */ 544249382dSDoug Rabson u_int32_t logical_id; /* ID of the device with quirk */ 554249382dSDoug Rabson int type; 564249382dSDoug Rabson #define PNP_QUIRK_WRITE_REG 1 /* Need to write a pnp register */ 57fb0ef528SSeigo Tanimura #define PNP_QUIRK_EXTRA_IO 2 /* Has extra io ports */ 584249382dSDoug Rabson int arg1; 594249382dSDoug Rabson int arg2; 604249382dSDoug Rabson }; 614249382dSDoug Rabson 624249382dSDoug Rabson struct pnp_quirk pnp_quirks[] = { 634249382dSDoug Rabson /* 644249382dSDoug Rabson * The Gravis UltraSound needs register 0xf2 to be set to 0xff 654249382dSDoug Rabson * to enable power. 664249382dSDoug Rabson * XXX need to know the logical device id. 674249382dSDoug Rabson */ 684249382dSDoug Rabson { 0x0100561e /* GRV0001 */, 0, 694249382dSDoug Rabson PNP_QUIRK_WRITE_REG, 0xf2, 0xff }, 70fb0ef528SSeigo Tanimura /* 71fb0ef528SSeigo Tanimura * An emu8000 does not give us other than the first 72fb0ef528SSeigo Tanimura * port. 73fb0ef528SSeigo Tanimura */ 74fb0ef528SSeigo Tanimura { 0x26008c0e /* SB16 */, 0x21008c0e, 75fb0ef528SSeigo Tanimura PNP_QUIRK_EXTRA_IO, 0x400, 0x800 }, 76fb0ef528SSeigo Tanimura { 0x42008c0e /* SB32(CTL0042) */, 0x21008c0e, 77fb0ef528SSeigo Tanimura PNP_QUIRK_EXTRA_IO, 0x400, 0x800 }, 78fb0ef528SSeigo Tanimura { 0x44008c0e /* SB32(CTL0044) */, 0x21008c0e, 79fb0ef528SSeigo Tanimura PNP_QUIRK_EXTRA_IO, 0x400, 0x800 }, 80fb0ef528SSeigo Tanimura { 0x49008c0e /* SB32(CTL0049) */, 0x21008c0e, 81fb0ef528SSeigo Tanimura PNP_QUIRK_EXTRA_IO, 0x400, 0x800 }, 82fb0ef528SSeigo Tanimura { 0xf1008c0e /* SB32(CTL00f1) */, 0x21008c0e, 83fb0ef528SSeigo Tanimura PNP_QUIRK_EXTRA_IO, 0x400, 0x800 }, 84fb0ef528SSeigo Tanimura { 0xc1008c0e /* SB64(CTL00c1) */, 0x22008c0e, 85fb0ef528SSeigo Tanimura PNP_QUIRK_EXTRA_IO, 0x400, 0x800 }, 8638b968c3SSeigo Tanimura { 0xc5008c0e /* SB64(CTL00c5) */, 0x22008c0e, 8738b968c3SSeigo Tanimura PNP_QUIRK_EXTRA_IO, 0x400, 0x800 }, 88fb0ef528SSeigo Tanimura { 0xe4008c0e /* SB64(CTL00e4) */, 0x22008c0e, 89fb0ef528SSeigo Tanimura PNP_QUIRK_EXTRA_IO, 0x400, 0x800 }, 904249382dSDoug Rabson 914249382dSDoug Rabson { 0 } 924249382dSDoug Rabson }; 934249382dSDoug Rabson 944249382dSDoug Rabson #if 0 954249382dSDoug Rabson /* 964249382dSDoug Rabson * these entries are initialized using the autoconfig menu 974249382dSDoug Rabson * The struct is invalid (and must be initialized) if the first 984249382dSDoug Rabson * CSN is zero. The init code fills invalid entries with CSN 255 994249382dSDoug Rabson * which is not a supported value. 1004249382dSDoug Rabson */ 1014249382dSDoug Rabson 1024249382dSDoug Rabson struct pnp_cinfo pnp_ldn_overrides[MAX_PNP_LDN] = { 1034249382dSDoug Rabson { 0 } 1044249382dSDoug Rabson }; 1054249382dSDoug Rabson #endif 1064249382dSDoug Rabson 1074249382dSDoug Rabson /* The READ_DATA port that we are using currently */ 1084249382dSDoug Rabson static int pnp_rd_port; 1094249382dSDoug Rabson 1104249382dSDoug Rabson static void pnp_send_initiation_key(void); 1114249382dSDoug Rabson static int pnp_get_serial(pnp_id *p); 1124249382dSDoug Rabson static int pnp_isolation_protocol(device_t parent); 1134249382dSDoug Rabson 114bb2b9030SDoug Rabson char * 115bb2b9030SDoug Rabson pnp_eisaformat(u_int32_t id) 116bb2b9030SDoug Rabson { 117bb2b9030SDoug Rabson u_int8_t *data = (u_int8_t *) &id; 118bb2b9030SDoug Rabson static char idbuf[8]; 119bb2b9030SDoug Rabson const char hextoascii[] = "0123456789abcdef"; 120bb2b9030SDoug Rabson 121bb2b9030SDoug Rabson idbuf[0] = '@' + ((data[0] & 0x7c) >> 2); 122bb2b9030SDoug Rabson idbuf[1] = '@' + (((data[0] & 0x3) << 3) + ((data[1] & 0xe0) >> 5)); 123bb2b9030SDoug Rabson idbuf[2] = '@' + (data[1] & 0x1f); 124bb2b9030SDoug Rabson idbuf[3] = hextoascii[(data[2] >> 4)]; 125bb2b9030SDoug Rabson idbuf[4] = hextoascii[(data[2] & 0xf)]; 126bb2b9030SDoug Rabson idbuf[5] = hextoascii[(data[3] >> 4)]; 127bb2b9030SDoug Rabson idbuf[6] = hextoascii[(data[3] & 0xf)]; 128bb2b9030SDoug Rabson idbuf[7] = 0; 129bb2b9030SDoug Rabson return(idbuf); 130bb2b9030SDoug Rabson } 131bb2b9030SDoug Rabson 1324249382dSDoug Rabson static void 1334249382dSDoug Rabson pnp_write(int d, u_char r) 1344249382dSDoug Rabson { 1354249382dSDoug Rabson outb (_PNP_ADDRESS, d); 1364249382dSDoug Rabson outb (_PNP_WRITE_DATA, r); 1374249382dSDoug Rabson } 1384249382dSDoug Rabson 1394249382dSDoug Rabson #if 0 1404249382dSDoug Rabson 1414249382dSDoug Rabson static u_char 1424249382dSDoug Rabson pnp_read(int d) 1434249382dSDoug Rabson { 1444249382dSDoug Rabson outb (_PNP_ADDRESS, d); 1454249382dSDoug Rabson return (inb(3 | (pnp_rd_port <<2))); 1464249382dSDoug Rabson } 1474249382dSDoug Rabson 1484249382dSDoug Rabson #endif 1494249382dSDoug Rabson 1504249382dSDoug Rabson /* 1514249382dSDoug Rabson * Send Initiation LFSR as described in "Plug and Play ISA Specification", 1524249382dSDoug Rabson * Intel May 94. 1534249382dSDoug Rabson */ 1544249382dSDoug Rabson static void 1554249382dSDoug Rabson pnp_send_initiation_key() 1564249382dSDoug Rabson { 1574249382dSDoug Rabson int cur, i; 1584249382dSDoug Rabson 1594249382dSDoug Rabson /* Reset the LSFR */ 1604249382dSDoug Rabson outb(_PNP_ADDRESS, 0); 1614249382dSDoug Rabson outb(_PNP_ADDRESS, 0); /* yes, we do need it twice! */ 1624249382dSDoug Rabson 1634249382dSDoug Rabson cur = 0x6a; 1644249382dSDoug Rabson outb(_PNP_ADDRESS, cur); 1654249382dSDoug Rabson 1664249382dSDoug Rabson for (i = 1; i < 32; i++) { 1674249382dSDoug Rabson cur = (cur >> 1) | (((cur ^ (cur >> 1)) << 7) & 0xff); 1684249382dSDoug Rabson outb(_PNP_ADDRESS, cur); 1694249382dSDoug Rabson } 1704249382dSDoug Rabson } 1714249382dSDoug Rabson 1724249382dSDoug Rabson 1734249382dSDoug Rabson /* 1744249382dSDoug Rabson * Get the device's serial number. Returns 1 if the serial is valid. 1754249382dSDoug Rabson */ 1764249382dSDoug Rabson static int 1774249382dSDoug Rabson pnp_get_serial(pnp_id *p) 1784249382dSDoug Rabson { 1794249382dSDoug Rabson int i, bit, valid = 0, sum = 0x6a; 1804249382dSDoug Rabson u_char *data = (u_char *)p; 1814249382dSDoug Rabson 1824249382dSDoug Rabson bzero(data, sizeof(char) * 9); 1834249382dSDoug Rabson outb(_PNP_ADDRESS, PNP_SERIAL_ISOLATION); 1844249382dSDoug Rabson for (i = 0; i < 72; i++) { 1854249382dSDoug Rabson bit = inb((pnp_rd_port << 2) | 0x3) == 0x55; 1864249382dSDoug Rabson DELAY(250); /* Delay 250 usec */ 1874249382dSDoug Rabson 1884249382dSDoug Rabson /* Can't Short Circuit the next evaluation, so 'and' is last */ 1894249382dSDoug Rabson bit = (inb((pnp_rd_port << 2) | 0x3) == 0xaa) && bit; 1904249382dSDoug Rabson DELAY(250); /* Delay 250 usec */ 1914249382dSDoug Rabson 1924249382dSDoug Rabson valid = valid || bit; 1934249382dSDoug Rabson 1944249382dSDoug Rabson if (i < 64) 1954249382dSDoug Rabson sum = (sum >> 1) | 1964249382dSDoug Rabson (((sum ^ (sum >> 1) ^ bit) << 7) & 0xff); 1974249382dSDoug Rabson 1984249382dSDoug Rabson data[i / 8] = (data[i / 8] >> 1) | (bit ? 0x80 : 0); 1994249382dSDoug Rabson } 2004249382dSDoug Rabson 2014249382dSDoug Rabson valid = valid && (data[8] == sum); 2024249382dSDoug Rabson 2034249382dSDoug Rabson return valid; 2044249382dSDoug Rabson } 2054249382dSDoug Rabson 2064249382dSDoug Rabson /* 2074249382dSDoug Rabson * Fill's the buffer with resource info from the device. 2085b45337dSDoug Rabson * Returns the number of characters read. 2094249382dSDoug Rabson */ 2104249382dSDoug Rabson static int 2114249382dSDoug Rabson pnp_get_resource_info(u_char *buffer, int len) 2124249382dSDoug Rabson { 2135b45337dSDoug Rabson int i, j, count; 2144249382dSDoug Rabson u_char temp; 2154249382dSDoug Rabson 2165b45337dSDoug Rabson count = 0; 2174249382dSDoug Rabson for (i = 0; i < len; i++) { 2184249382dSDoug Rabson outb(_PNP_ADDRESS, PNP_STATUS); 2194249382dSDoug Rabson for (j = 0; j < 100; j++) { 2204249382dSDoug Rabson if ((inb((pnp_rd_port << 2) | 0x3)) & 0x1) 2214249382dSDoug Rabson break; 2224249382dSDoug Rabson DELAY(1); 2234249382dSDoug Rabson } 2244249382dSDoug Rabson if (j == 100) { 2254249382dSDoug Rabson printf("PnP device failed to report resource data\n"); 2265b45337dSDoug Rabson return count; 2274249382dSDoug Rabson } 2284249382dSDoug Rabson outb(_PNP_ADDRESS, PNP_RESOURCE_DATA); 2294249382dSDoug Rabson temp = inb((pnp_rd_port << 2) | 0x3); 2304249382dSDoug Rabson if (buffer != NULL) 2314249382dSDoug Rabson buffer[i] = temp; 2325b45337dSDoug Rabson count++; 2334249382dSDoug Rabson } 2345b45337dSDoug Rabson return count; 2354249382dSDoug Rabson } 2364249382dSDoug Rabson 2374249382dSDoug Rabson #if 0 2384249382dSDoug Rabson /* 2394249382dSDoug Rabson * write_pnp_parms initializes a logical device with the parms 2404249382dSDoug Rabson * in d, and then activates the board if the last parameter is 1. 2414249382dSDoug Rabson */ 2424249382dSDoug Rabson 2434249382dSDoug Rabson static int 2444249382dSDoug Rabson write_pnp_parms(struct pnp_cinfo *d, pnp_id *p, int ldn) 2454249382dSDoug Rabson { 2464249382dSDoug Rabson int i, empty = -1 ; 2474249382dSDoug Rabson 2484249382dSDoug Rabson pnp_write (SET_LDN, ldn ); 2494249382dSDoug Rabson i = pnp_read(SET_LDN) ; 2504249382dSDoug Rabson if (i != ldn) { 2514249382dSDoug Rabson printf("Warning: LDN %d does not exist\n", ldn); 2524249382dSDoug Rabson } 2534249382dSDoug Rabson for (i = 0; i < 8; i++) { 2544249382dSDoug Rabson pnp_write(IO_CONFIG_BASE + i * 2, d->ic_port[i] >> 8 ); 2554249382dSDoug Rabson pnp_write(IO_CONFIG_BASE + i * 2 + 1, d->ic_port[i] & 0xff ); 2564249382dSDoug Rabson } 2574249382dSDoug Rabson for (i = 0; i < 4; i++) { 2584249382dSDoug Rabson pnp_write(MEM_CONFIG + i*8, (d->ic_mem[i].base >> 16) & 0xff ); 2594249382dSDoug Rabson pnp_write(MEM_CONFIG + i*8+1, (d->ic_mem[i].base >> 8) & 0xff ); 2604249382dSDoug Rabson pnp_write(MEM_CONFIG + i*8+2, d->ic_mem[i].control & 0xff ); 2614249382dSDoug Rabson pnp_write(MEM_CONFIG + i*8+3, (d->ic_mem[i].range >> 16) & 0xff ); 2624249382dSDoug Rabson pnp_write(MEM_CONFIG + i*8+4, (d->ic_mem[i].range >> 8) & 0xff ); 2634249382dSDoug Rabson } 2644249382dSDoug Rabson for (i = 0; i < 2; i++) { 2654249382dSDoug Rabson pnp_write(IRQ_CONFIG + i*2 , d->irq[i] ); 2664249382dSDoug Rabson pnp_write(IRQ_CONFIG + i*2 + 1, d->irq_type[i] ); 2674249382dSDoug Rabson pnp_write(DRQ_CONFIG + i, d->drq[i] ); 2684249382dSDoug Rabson } 2694249382dSDoug Rabson /* 2704249382dSDoug Rabson * store parameters read into the current kernel 2714249382dSDoug Rabson * so manual editing next time is easier 2724249382dSDoug Rabson */ 2734249382dSDoug Rabson for (i = 0 ; i < MAX_PNP_LDN; i++) { 2744249382dSDoug Rabson if (pnp_ldn_overrides[i].csn == d->csn && 2754249382dSDoug Rabson pnp_ldn_overrides[i].ldn == ldn) { 2764249382dSDoug Rabson d->flags = pnp_ldn_overrides[i].flags ; 2774249382dSDoug Rabson pnp_ldn_overrides[i] = *d ; 2784249382dSDoug Rabson break ; 2794249382dSDoug Rabson } else if (pnp_ldn_overrides[i].csn < 1 || 2804249382dSDoug Rabson pnp_ldn_overrides[i].csn == 255) 2814249382dSDoug Rabson empty = i ; 2824249382dSDoug Rabson } 2834249382dSDoug Rabson if (i== MAX_PNP_LDN && empty != -1) 2844249382dSDoug Rabson pnp_ldn_overrides[empty] = *d; 2854249382dSDoug Rabson 2864249382dSDoug Rabson /* 2874249382dSDoug Rabson * Here should really perform the range check, and 2884249382dSDoug Rabson * return a failure if not successful. 2894249382dSDoug Rabson */ 2904249382dSDoug Rabson pnp_write (IO_RANGE_CHECK, 0); 2914249382dSDoug Rabson DELAY(1000); /* XXX is it really necessary ? */ 2924249382dSDoug Rabson pnp_write (ACTIVATE, d->enable ? 1 : 0); 2934249382dSDoug Rabson DELAY(1000); /* XXX is it really necessary ? */ 2944249382dSDoug Rabson return 1 ; 2954249382dSDoug Rabson } 2964249382dSDoug Rabson #endif 2974249382dSDoug Rabson 2984249382dSDoug Rabson /* 2994249382dSDoug Rabson * This function is called after the bus has assigned resource 3004249382dSDoug Rabson * locations for a logical device. 3014249382dSDoug Rabson */ 3024249382dSDoug Rabson static void 3034249382dSDoug Rabson pnp_set_config(void *arg, struct isa_config *config, int enable) 3044249382dSDoug Rabson { 3054249382dSDoug Rabson int csn = ((struct pnp_set_config_arg *) arg)->csn; 3064249382dSDoug Rabson int ldn = ((struct pnp_set_config_arg *) arg)->ldn; 3074249382dSDoug Rabson int i; 3084249382dSDoug Rabson 3094249382dSDoug Rabson /* 3104249382dSDoug Rabson * First put all cards into Sleep state with the initiation 3114249382dSDoug Rabson * key, then put our card into Config state. 3124249382dSDoug Rabson */ 3134249382dSDoug Rabson pnp_send_initiation_key(); 3144249382dSDoug Rabson pnp_write(PNP_WAKE, csn); 3154249382dSDoug Rabson 3164249382dSDoug Rabson /* 3174249382dSDoug Rabson * Select our logical device so that we can program it. 3184249382dSDoug Rabson */ 3194249382dSDoug Rabson pnp_write(PNP_SET_LDN, ldn); 3204249382dSDoug Rabson 3214249382dSDoug Rabson /* 32208764b84SMike Smith * Constrain the number of resources we will try to program 32308764b84SMike Smith */ 32408764b84SMike Smith if (config->ic_nmem > ISA_PNP_NMEM) { 32508764b84SMike Smith printf("too many ISA memory ranges (%d > %d)\n", config->ic_nmem, ISA_PNP_NMEM); 32608764b84SMike Smith config->ic_nmem = ISA_PNP_NMEM; 32708764b84SMike Smith } 32808764b84SMike Smith if (config->ic_nport > ISA_PNP_NPORT) { 32908764b84SMike Smith printf("too many ISA I/O ranges (%d > %d)\n", config->ic_nport, ISA_PNP_NPORT); 33008764b84SMike Smith config->ic_nport = ISA_PNP_NPORT; 33108764b84SMike Smith } 33208764b84SMike Smith if (config->ic_nirq > ISA_PNP_NIRQ) { 33308764b84SMike Smith printf("too many ISA IRQs (%d > %d)\n", config->ic_nirq, ISA_PNP_NIRQ); 33408764b84SMike Smith config->ic_nirq = ISA_PNP_NIRQ; 33508764b84SMike Smith } 33608764b84SMike Smith if (config->ic_ndrq > ISA_PNP_NDRQ) { 33708764b84SMike Smith printf("too many ISA DRQs (%d > %d)\n", config->ic_ndrq, ISA_PNP_NDRQ); 33808764b84SMike Smith config->ic_ndrq = ISA_PNP_NDRQ; 33908764b84SMike Smith } 34008764b84SMike Smith 34108764b84SMike Smith /* 3424249382dSDoug Rabson * Now program the resources. 3434249382dSDoug Rabson */ 3444249382dSDoug Rabson for (i = 0; i < config->ic_nmem; i++) { 345c3959391SKazutaka YOKOTA u_int32_t start; 346c3959391SKazutaka YOKOTA u_int32_t size; 347c3959391SKazutaka YOKOTA 348c3959391SKazutaka YOKOTA /* XXX: should handle memory control register, 32 bit memory */ 349c3959391SKazutaka YOKOTA if (config->ic_mem[i].ir_size == 0) { 350c3959391SKazutaka YOKOTA pnp_write(PNP_MEM_BASE_HIGH(i), 0); 351c3959391SKazutaka YOKOTA pnp_write(PNP_MEM_BASE_LOW(i), 0); 352c3959391SKazutaka YOKOTA pnp_write(PNP_MEM_RANGE_HIGH(i), 0); 353c3959391SKazutaka YOKOTA pnp_write(PNP_MEM_RANGE_LOW(i), 0); 354c3959391SKazutaka YOKOTA } else { 355c3959391SKazutaka YOKOTA start = config->ic_mem[i].ir_start; 356c3959391SKazutaka YOKOTA size = config->ic_mem[i].ir_size; 3574249382dSDoug Rabson if (start & 0xff) 3584249382dSDoug Rabson panic("pnp_set_config: bogus memory assignment"); 3594249382dSDoug Rabson pnp_write(PNP_MEM_BASE_HIGH(i), (start >> 16) & 0xff); 3604249382dSDoug Rabson pnp_write(PNP_MEM_BASE_LOW(i), (start >> 8) & 0xff); 3614249382dSDoug Rabson pnp_write(PNP_MEM_RANGE_HIGH(i), (size >> 16) & 0xff); 3624249382dSDoug Rabson pnp_write(PNP_MEM_RANGE_LOW(i), (size >> 8) & 0xff); 3634249382dSDoug Rabson } 364c3959391SKazutaka YOKOTA } 36508764b84SMike Smith for (; i < ISA_PNP_NMEM; i++) { 3664249382dSDoug Rabson pnp_write(PNP_MEM_BASE_HIGH(i), 0); 3674249382dSDoug Rabson pnp_write(PNP_MEM_BASE_LOW(i), 0); 3684249382dSDoug Rabson pnp_write(PNP_MEM_RANGE_HIGH(i), 0); 3694249382dSDoug Rabson pnp_write(PNP_MEM_RANGE_LOW(i), 0); 3704249382dSDoug Rabson } 3714249382dSDoug Rabson 3724249382dSDoug Rabson for (i = 0; i < config->ic_nport; i++) { 373c3959391SKazutaka YOKOTA u_int32_t start; 374c3959391SKazutaka YOKOTA 375c3959391SKazutaka YOKOTA if (config->ic_port[i].ir_size == 0) { 376c3959391SKazutaka YOKOTA pnp_write(PNP_IO_BASE_HIGH(i), 0); 377c3959391SKazutaka YOKOTA pnp_write(PNP_IO_BASE_LOW(i), 0); 378c3959391SKazutaka YOKOTA } else { 379c3959391SKazutaka YOKOTA start = config->ic_port[i].ir_start; 3804249382dSDoug Rabson pnp_write(PNP_IO_BASE_HIGH(i), (start >> 8) & 0xff); 3814249382dSDoug Rabson pnp_write(PNP_IO_BASE_LOW(i), (start >> 0) & 0xff); 3824249382dSDoug Rabson } 383c3959391SKazutaka YOKOTA } 38408764b84SMike Smith for (; i < ISA_PNP_NPORT; i++) { 3854249382dSDoug Rabson pnp_write(PNP_IO_BASE_HIGH(i), 0); 3864249382dSDoug Rabson pnp_write(PNP_IO_BASE_LOW(i), 0); 3874249382dSDoug Rabson } 3884249382dSDoug Rabson 3894249382dSDoug Rabson for (i = 0; i < config->ic_nirq; i++) { 390c3959391SKazutaka YOKOTA int irq; 391c3959391SKazutaka YOKOTA 392c3959391SKazutaka YOKOTA /* XXX: interrupt type */ 393c3959391SKazutaka YOKOTA if (config->ic_irqmask[i] == 0) { 394c3959391SKazutaka YOKOTA pnp_write(PNP_IRQ_LEVEL(i), 0); 395c3959391SKazutaka YOKOTA pnp_write(PNP_IRQ_TYPE(i), 2); 396c3959391SKazutaka YOKOTA } else { 397c3959391SKazutaka YOKOTA irq = ffs(config->ic_irqmask[i]) - 1; 3984249382dSDoug Rabson pnp_write(PNP_IRQ_LEVEL(i), irq); 3994249382dSDoug Rabson pnp_write(PNP_IRQ_TYPE(i), 2); /* XXX */ 4004249382dSDoug Rabson } 401c3959391SKazutaka YOKOTA } 40208764b84SMike Smith for (; i < ISA_PNP_NIRQ; i++) { 4034249382dSDoug Rabson /* 4044249382dSDoug Rabson * IRQ 0 is not a valid interrupt selection and 4054249382dSDoug Rabson * represents no interrupt selection. 4064249382dSDoug Rabson */ 4074249382dSDoug Rabson pnp_write(PNP_IRQ_LEVEL(i), 0); 408c3959391SKazutaka YOKOTA pnp_write(PNP_IRQ_TYPE(i), 2); 4094249382dSDoug Rabson } 4104249382dSDoug Rabson 4114249382dSDoug Rabson for (i = 0; i < config->ic_ndrq; i++) { 412c3959391SKazutaka YOKOTA int drq; 413c3959391SKazutaka YOKOTA 414c3959391SKazutaka YOKOTA if (config->ic_drqmask[i] == 0) { 415c3959391SKazutaka YOKOTA pnp_write(PNP_DMA_CHANNEL(i), 4); 416c3959391SKazutaka YOKOTA } else { 417c3959391SKazutaka YOKOTA drq = ffs(config->ic_drqmask[i]) - 1; 4184249382dSDoug Rabson pnp_write(PNP_DMA_CHANNEL(i), drq); 4194249382dSDoug Rabson } 420c3959391SKazutaka YOKOTA } 42108764b84SMike Smith for (; i < ISA_PNP_NDRQ; i++) { 4224249382dSDoug Rabson /* 4234249382dSDoug Rabson * DMA channel 4, the cascade channel is used to 4244249382dSDoug Rabson * indicate no DMA channel is active. 4254249382dSDoug Rabson */ 4264249382dSDoug Rabson pnp_write(PNP_DMA_CHANNEL(i), 4); 4274249382dSDoug Rabson } 4284249382dSDoug Rabson 4294249382dSDoug Rabson pnp_write(PNP_ACTIVATE, enable ? 1 : 0); 4304249382dSDoug Rabson 4314249382dSDoug Rabson /* 4324249382dSDoug Rabson * Wake everyone up again, we are finished. 4334249382dSDoug Rabson */ 4344249382dSDoug Rabson pnp_write(PNP_CONFIG_CONTROL, PNP_CONFIG_CONTROL_WAIT_FOR_KEY); 4354249382dSDoug Rabson } 4364249382dSDoug Rabson 4374249382dSDoug Rabson /* 4384249382dSDoug Rabson * Process quirks for a logical device.. The card must be in Config state. 4394249382dSDoug Rabson */ 440fb0ef528SSeigo Tanimura void 441fb0ef528SSeigo Tanimura pnp_check_quirks(u_int32_t vendor_id, u_int32_t logical_id, int ldn, struct isa_config *config) 4424249382dSDoug Rabson { 4434249382dSDoug Rabson struct pnp_quirk *qp; 4444249382dSDoug Rabson 4454249382dSDoug Rabson for (qp = &pnp_quirks[0]; qp->vendor_id; qp++) { 4464249382dSDoug Rabson if (qp->vendor_id == vendor_id 4474249382dSDoug Rabson && (qp->logical_id == 0 4484249382dSDoug Rabson || qp->logical_id == logical_id)) { 4494249382dSDoug Rabson switch (qp->type) { 4504249382dSDoug Rabson case PNP_QUIRK_WRITE_REG: 4514249382dSDoug Rabson pnp_write(PNP_SET_LDN, ldn); 4524249382dSDoug Rabson pnp_write(qp->arg1, qp->arg2); 4534249382dSDoug Rabson break; 454fb0ef528SSeigo Tanimura case PNP_QUIRK_EXTRA_IO: 455fb0ef528SSeigo Tanimura if (config == NULL) 456fb0ef528SSeigo Tanimura break; 457fb0ef528SSeigo Tanimura if (qp->arg1 != 0) { 458fb0ef528SSeigo Tanimura config->ic_nport++; 459fb0ef528SSeigo Tanimura config->ic_port[config->ic_nport - 1] = config->ic_port[0]; 460fb0ef528SSeigo Tanimura config->ic_port[config->ic_nport - 1].ir_start += qp->arg1; 461fb0ef528SSeigo Tanimura config->ic_port[config->ic_nport - 1].ir_end += qp->arg1; 462fb0ef528SSeigo Tanimura } 463fb0ef528SSeigo Tanimura if (qp->arg2 != 0) { 464fb0ef528SSeigo Tanimura config->ic_nport++; 465fb0ef528SSeigo Tanimura config->ic_port[config->ic_nport - 1] = config->ic_port[0]; 466fb0ef528SSeigo Tanimura config->ic_port[config->ic_nport - 1].ir_start += qp->arg2; 467fb0ef528SSeigo Tanimura config->ic_port[config->ic_nport - 1].ir_end += qp->arg2; 468fb0ef528SSeigo Tanimura } 469fb0ef528SSeigo Tanimura break; 4704249382dSDoug Rabson } 4714249382dSDoug Rabson } 4724249382dSDoug Rabson } 4734249382dSDoug Rabson } 4744249382dSDoug Rabson 4754249382dSDoug Rabson /* 4764249382dSDoug Rabson * Scan Resource Data for Logical Devices. 4774249382dSDoug Rabson * 4784249382dSDoug Rabson * This function exits as soon as it gets an error reading *ANY* 4795b45337dSDoug Rabson * Resource Data or it reaches the end of Resource Data. In the first 4804249382dSDoug Rabson * case the return value will be TRUE, FALSE otherwise. 4814249382dSDoug Rabson */ 4824249382dSDoug Rabson static int 4835b45337dSDoug Rabson pnp_create_devices(device_t parent, pnp_id *p, int csn, 4845b45337dSDoug Rabson u_char *resources, int len) 4854249382dSDoug Rabson { 4865b45337dSDoug Rabson u_char tag, *resp, *resinfo, *startres = 0; 4875b45337dSDoug Rabson int large_len, scanning = len, retval = FALSE; 4884249382dSDoug Rabson u_int32_t logical_id; 4894249382dSDoug Rabson u_int32_t compat_id; 4904249382dSDoug Rabson device_t dev = 0; 4914249382dSDoug Rabson int ldn = 0; 4924249382dSDoug Rabson struct pnp_set_config_arg *csnldn; 4935b45337dSDoug Rabson char buf[100]; 4944249382dSDoug Rabson char *desc = 0; 4954249382dSDoug Rabson 4965b45337dSDoug Rabson resp = resources; 4975b45337dSDoug Rabson while (scanning > 0) { 4985b45337dSDoug Rabson tag = *resp++; 4995b45337dSDoug Rabson scanning--; 5005b45337dSDoug Rabson if (PNP_RES_TYPE(tag) != 0) { 5015b45337dSDoug Rabson /* Large resource */ 5025b45337dSDoug Rabson if (scanning < 2) { 5034249382dSDoug Rabson scanning = 0; 5044249382dSDoug Rabson continue; 5054249382dSDoug Rabson } 5065b45337dSDoug Rabson large_len = resp[0] + (resp[1] << 8); 5075b45337dSDoug Rabson resp += 2; 5085b45337dSDoug Rabson 5095b45337dSDoug Rabson if (scanning < large_len) { 5105b45337dSDoug Rabson scanning = 0; 5115b45337dSDoug Rabson continue; 5125b45337dSDoug Rabson } 5135b45337dSDoug Rabson resinfo = resp; 5145b45337dSDoug Rabson resp += large_len; 5155b45337dSDoug Rabson scanning -= large_len; 5165b45337dSDoug Rabson 5175b45337dSDoug Rabson if (PNP_LRES_NUM(tag) == PNP_TAG_ID_ANSI) { 518d117cb4eSKazutaka YOKOTA if (dev) { 519d117cb4eSKazutaka YOKOTA /* 520d117cb4eSKazutaka YOKOTA * This is an optional device 521d117cb4eSKazutaka YOKOTA * indentifier string. Skipt it 522d117cb4eSKazutaka YOKOTA * for now. 523d117cb4eSKazutaka YOKOTA */ 524d117cb4eSKazutaka YOKOTA continue; 525d117cb4eSKazutaka YOKOTA } 526d117cb4eSKazutaka YOKOTA /* else mandately card identifier string */ 5275b45337dSDoug Rabson if (large_len > sizeof(buf) - 1) 5285b45337dSDoug Rabson large_len = sizeof(buf) - 1; 5295b45337dSDoug Rabson bcopy(resinfo, buf, large_len); 5305b45337dSDoug Rabson 5315b45337dSDoug Rabson /* 5325b45337dSDoug Rabson * Trim trailing spaces. 5335b45337dSDoug Rabson */ 5345b45337dSDoug Rabson while (buf[large_len-1] == ' ') 5355b45337dSDoug Rabson large_len--; 5365b45337dSDoug Rabson buf[large_len] = '\0'; 5375b45337dSDoug Rabson desc = buf; 5385b45337dSDoug Rabson continue; 5395b45337dSDoug Rabson } 5405b45337dSDoug Rabson 5415b45337dSDoug Rabson continue; 5425b45337dSDoug Rabson } 5435b45337dSDoug Rabson 5445b45337dSDoug Rabson /* Small resource */ 5455b45337dSDoug Rabson if (scanning < PNP_SRES_LEN(tag)) { 5465b45337dSDoug Rabson scanning = 0; 5475b45337dSDoug Rabson continue; 5485b45337dSDoug Rabson } 5495b45337dSDoug Rabson resinfo = resp; 5505b45337dSDoug Rabson resp += PNP_SRES_LEN(tag); 5515b45337dSDoug Rabson scanning -= PNP_SRES_LEN(tag);; 5524249382dSDoug Rabson 5534249382dSDoug Rabson switch (PNP_SRES_NUM(tag)) { 55448ab255eSPeter Wemm case PNP_TAG_LOGICAL_DEVICE: 5554249382dSDoug Rabson /* 5565b45337dSDoug Rabson * Parse the resources for the previous 5575b45337dSDoug Rabson * logical device (if any). 5585b45337dSDoug Rabson */ 5595b45337dSDoug Rabson if (startres) { 5605b45337dSDoug Rabson pnp_parse_resources(dev, startres, 561fb0ef528SSeigo Tanimura resinfo - startres - 1, 562c3959391SKazutaka YOKOTA ldn); 5635b45337dSDoug Rabson dev = 0; 5645b45337dSDoug Rabson startres = 0; 5655b45337dSDoug Rabson } 5665b45337dSDoug Rabson 5675b45337dSDoug Rabson /* 5685b45337dSDoug Rabson * A new logical device. Scan for end of 5695b45337dSDoug Rabson * resources. 5704249382dSDoug Rabson */ 5714249382dSDoug Rabson bcopy(resinfo, &logical_id, 4); 572fb0ef528SSeigo Tanimura pnp_check_quirks(p->vendor_id, logical_id, ldn, NULL); 5734249382dSDoug Rabson compat_id = 0; 5745b45337dSDoug Rabson dev = BUS_ADD_CHILD(parent, ISA_ORDER_PNP, NULL, -1); 5754249382dSDoug Rabson if (desc) 5764249382dSDoug Rabson device_set_desc_copy(dev, desc); 577d117cb4eSKazutaka YOKOTA else 578d117cb4eSKazutaka YOKOTA device_set_desc_copy(dev, 579d117cb4eSKazutaka YOKOTA pnp_eisaformat(logical_id)); 5804249382dSDoug Rabson isa_set_vendorid(dev, p->vendor_id); 5814249382dSDoug Rabson isa_set_serial(dev, p->serial); 5824249382dSDoug Rabson isa_set_logicalid(dev, logical_id); 583c3959391SKazutaka YOKOTA isa_set_configattr(dev, 584c3959391SKazutaka YOKOTA ISACFGATTR_CANDISABLE | 585c3959391SKazutaka YOKOTA ISACFGATTR_DYNAMIC); 5865b45337dSDoug Rabson csnldn = malloc(sizeof *csnldn, M_DEVBUF, M_NOWAIT); 5874249382dSDoug Rabson if (!csnldn) { 5884249382dSDoug Rabson device_printf(parent, 5894249382dSDoug Rabson "out of memory\n"); 5904249382dSDoug Rabson scanning = 0; 5914249382dSDoug Rabson break; 5924249382dSDoug Rabson } 5934249382dSDoug Rabson csnldn->csn = csn; 5944249382dSDoug Rabson csnldn->ldn = ldn; 5954249382dSDoug Rabson ISA_SET_CONFIG_CALLBACK(parent, dev, 5965b45337dSDoug Rabson pnp_set_config, csnldn); 5974249382dSDoug Rabson ldn++; 5985b45337dSDoug Rabson startres = resp; 5994249382dSDoug Rabson break; 6004249382dSDoug Rabson 6014249382dSDoug Rabson case PNP_TAG_END: 6025b45337dSDoug Rabson if (!startres) { 6035b45337dSDoug Rabson device_printf(parent, 6045b45337dSDoug Rabson "malformed resources\n"); 6055b45337dSDoug Rabson scanning = 0; 6065b45337dSDoug Rabson break; 6075b45337dSDoug Rabson } 6085b45337dSDoug Rabson pnp_parse_resources(dev, startres, 609c3959391SKazutaka YOKOTA resinfo - startres - 1, ldn); 6105b45337dSDoug Rabson dev = 0; 6115b45337dSDoug Rabson startres = 0; 6124249382dSDoug Rabson scanning = 0; 6134249382dSDoug Rabson break; 6144249382dSDoug Rabson 6154249382dSDoug Rabson default: 6164249382dSDoug Rabson /* Skip this resource */ 6174249382dSDoug Rabson break; 6184249382dSDoug Rabson } 6194249382dSDoug Rabson } 6204249382dSDoug Rabson 6214249382dSDoug Rabson return retval; 6224249382dSDoug Rabson } 6234249382dSDoug Rabson 6244249382dSDoug Rabson /* 6255b45337dSDoug Rabson * Read 'amount' bytes of resources from the card, allocating memory 6265b45337dSDoug Rabson * as needed. If a buffer is already available, it should be passed in 6275b45337dSDoug Rabson * '*resourcesp' and its length in '*spacep'. The number of resource 6285b45337dSDoug Rabson * bytes already in the buffer should be passed in '*lenp'. The memory 6295b45337dSDoug Rabson * allocated will be returned in '*resourcesp' with its size and the 6305b45337dSDoug Rabson * number of bytes of resources in '*spacep' and '*lenp' respectively. 6315b45337dSDoug Rabson */ 6325b45337dSDoug Rabson static int 6335b45337dSDoug Rabson pnp_read_bytes(int amount, u_char **resourcesp, int *spacep, int *lenp) 6345b45337dSDoug Rabson { 6355b45337dSDoug Rabson u_char *resources = *resourcesp; 6365b45337dSDoug Rabson u_char *newres; 6375b45337dSDoug Rabson int space = *spacep; 6385b45337dSDoug Rabson int len = *lenp; 6395b45337dSDoug Rabson 6405b45337dSDoug Rabson if (space == 0) { 6415b45337dSDoug Rabson space = 1024; 6425b45337dSDoug Rabson resources = malloc(space, M_TEMP, M_NOWAIT); 6435b45337dSDoug Rabson if (!resources) 6445b45337dSDoug Rabson return ENOMEM; 6455b45337dSDoug Rabson } 6465b45337dSDoug Rabson 6475b45337dSDoug Rabson if (len + amount > space) { 6485b45337dSDoug Rabson int extra = 1024; 6495b45337dSDoug Rabson while (len + amount > space + extra) 6505b45337dSDoug Rabson extra += 1024; 6515b45337dSDoug Rabson newres = malloc(space + extra, M_TEMP, M_NOWAIT); 6525b45337dSDoug Rabson if (!newres) 6535b45337dSDoug Rabson return ENOMEM; 6545b45337dSDoug Rabson bcopy(resources, newres, len); 6555b45337dSDoug Rabson free(resources, M_TEMP); 6565b45337dSDoug Rabson resources = newres; 6575b45337dSDoug Rabson space += extra; 6585b45337dSDoug Rabson } 6595b45337dSDoug Rabson 6605b45337dSDoug Rabson if (pnp_get_resource_info(resources + len, amount) != amount) 6615b45337dSDoug Rabson return EINVAL; 6625b45337dSDoug Rabson len += amount; 6635b45337dSDoug Rabson 6645b45337dSDoug Rabson *resourcesp = resources; 6655b45337dSDoug Rabson *spacep = space; 6665b45337dSDoug Rabson *lenp = len; 6675b45337dSDoug Rabson 6685b45337dSDoug Rabson return 0; 6695b45337dSDoug Rabson } 6705b45337dSDoug Rabson 6715b45337dSDoug Rabson /* 6725b45337dSDoug Rabson * Read all resources from the card, allocating memory as needed. If a 6735b45337dSDoug Rabson * buffer is already available, it should be passed in '*resourcesp' 6745b45337dSDoug Rabson * and its length in '*spacep'. The memory allocated will be returned 6755b45337dSDoug Rabson * in '*resourcesp' with its size and the number of bytes of resources 6765b45337dSDoug Rabson * in '*spacep' and '*lenp' respectively. 6775b45337dSDoug Rabson */ 6785b45337dSDoug Rabson static int 6795b45337dSDoug Rabson pnp_read_resources(u_char **resourcesp, int *spacep, int *lenp) 6805b45337dSDoug Rabson { 6815b45337dSDoug Rabson u_char *resources = *resourcesp; 6825b45337dSDoug Rabson int space = *spacep; 6835b45337dSDoug Rabson int len = 0; 6845b45337dSDoug Rabson int error, done; 6855b45337dSDoug Rabson u_char tag; 6865b45337dSDoug Rabson 6875b45337dSDoug Rabson error = 0; 6885b45337dSDoug Rabson done = 0; 6895b45337dSDoug Rabson while (!done) { 6905b45337dSDoug Rabson error = pnp_read_bytes(1, &resources, &space, &len); 6915b45337dSDoug Rabson if (error) 6925b45337dSDoug Rabson goto out; 6935b45337dSDoug Rabson tag = resources[len-1]; 6945b45337dSDoug Rabson if (PNP_RES_TYPE(tag) == 0) { 6955b45337dSDoug Rabson /* 6965b45337dSDoug Rabson * Small resource, read contents. 6975b45337dSDoug Rabson */ 6985b45337dSDoug Rabson error = pnp_read_bytes(PNP_SRES_LEN(tag), 6995b45337dSDoug Rabson &resources, &space, &len); 7005b45337dSDoug Rabson if (error) 7015b45337dSDoug Rabson goto out; 7025b45337dSDoug Rabson if (PNP_SRES_NUM(tag) == PNP_TAG_END) 7035b45337dSDoug Rabson done = 1; 7045b45337dSDoug Rabson } else { 7055b45337dSDoug Rabson /* 7065b45337dSDoug Rabson * Large resource, read length and contents. 7075b45337dSDoug Rabson */ 7085b45337dSDoug Rabson error = pnp_read_bytes(2, &resources, &space, &len); 7095b45337dSDoug Rabson if (error) 7105b45337dSDoug Rabson goto out; 7115b45337dSDoug Rabson error = pnp_read_bytes(resources[len-2] 7125b45337dSDoug Rabson + (resources[len-1] << 8), 7135b45337dSDoug Rabson &resources, &space, &len); 7145b45337dSDoug Rabson if (error) 7155b45337dSDoug Rabson goto out; 7165b45337dSDoug Rabson } 7175b45337dSDoug Rabson } 7185b45337dSDoug Rabson 7195b45337dSDoug Rabson out: 7205b45337dSDoug Rabson *resourcesp = resources; 7215b45337dSDoug Rabson *spacep = space; 7225b45337dSDoug Rabson *lenp = len; 7235b45337dSDoug Rabson return error; 7245b45337dSDoug Rabson } 7255b45337dSDoug Rabson 7265b45337dSDoug Rabson /* 7274249382dSDoug Rabson * Run the isolation protocol. Use pnp_rd_port as the READ_DATA port 7284249382dSDoug Rabson * value (caller should try multiple READ_DATA locations before giving 7294249382dSDoug Rabson * up). Upon exiting, all cards are aware that they should use 7304249382dSDoug Rabson * pnp_rd_port as the READ_DATA port. 7314249382dSDoug Rabson * 7324249382dSDoug Rabson * In the first pass, a csn is assigned to each board and pnp_id's 7334249382dSDoug Rabson * are saved to an array, pnp_devices. In the second pass, each 7344249382dSDoug Rabson * card is woken up and the device configuration is called. 7354249382dSDoug Rabson */ 7364249382dSDoug Rabson static int 7374249382dSDoug Rabson pnp_isolation_protocol(device_t parent) 7384249382dSDoug Rabson { 7394249382dSDoug Rabson int csn; 7404249382dSDoug Rabson pnp_id id; 7415b45337dSDoug Rabson int found = 0, len; 7425b45337dSDoug Rabson u_char *resources = 0; 7435b45337dSDoug Rabson int space = 0; 7445b45337dSDoug Rabson int error; 7454249382dSDoug Rabson 7464249382dSDoug Rabson /* 7474249382dSDoug Rabson * Put all cards into the Sleep state so that we can clear 7484249382dSDoug Rabson * their CSNs. 7494249382dSDoug Rabson */ 7504249382dSDoug Rabson pnp_send_initiation_key(); 7514249382dSDoug Rabson 7524249382dSDoug Rabson /* 7534249382dSDoug Rabson * Clear the CSN for all cards. 7544249382dSDoug Rabson */ 7554249382dSDoug Rabson pnp_write(PNP_CONFIG_CONTROL, PNP_CONFIG_CONTROL_RESET_CSN); 7564249382dSDoug Rabson 7574249382dSDoug Rabson /* 7584249382dSDoug Rabson * Move all cards to the Isolation state. 7594249382dSDoug Rabson */ 7604249382dSDoug Rabson pnp_write(PNP_WAKE, 0); 7614249382dSDoug Rabson 7624249382dSDoug Rabson /* 7634249382dSDoug Rabson * Tell them where the read point is going to be this time. 7644249382dSDoug Rabson */ 7654249382dSDoug Rabson pnp_write(PNP_SET_RD_DATA, pnp_rd_port); 7664249382dSDoug Rabson 7674249382dSDoug Rabson for (csn = 1; csn < PNP_MAX_CARDS; csn++) { 7684249382dSDoug Rabson /* 7694249382dSDoug Rabson * Start the serial isolation protocol. 7704249382dSDoug Rabson */ 7714249382dSDoug Rabson outb(_PNP_ADDRESS, PNP_SERIAL_ISOLATION); 7724249382dSDoug Rabson DELAY(1000); /* Delay 1 msec */ 7734249382dSDoug Rabson 7744249382dSDoug Rabson if (pnp_get_serial(&id)) { 7754249382dSDoug Rabson /* 7764249382dSDoug Rabson * We have read the id from a card 7774249382dSDoug Rabson * successfully. The card which won the 7784249382dSDoug Rabson * isolation protocol will be in Isolation 7795b45337dSDoug Rabson * mode and all others will be in Sleep. 7804249382dSDoug Rabson * Program the CSN of the isolated card 7814249382dSDoug Rabson * (taking it to Config state) and read its 7824249382dSDoug Rabson * resources, creating devices as we find 7834249382dSDoug Rabson * logical devices on the card. 7844249382dSDoug Rabson */ 7854249382dSDoug Rabson pnp_write(PNP_SET_CSN, csn); 7865b45337dSDoug Rabson error = pnp_read_resources(&resources, 7875b45337dSDoug Rabson &space, 7885b45337dSDoug Rabson &len); 7895b45337dSDoug Rabson if (error) 7905b45337dSDoug Rabson break; 7915b45337dSDoug Rabson pnp_create_devices(parent, &id, csn, 7925b45337dSDoug Rabson resources, len); 7934249382dSDoug Rabson found++; 7944249382dSDoug Rabson } else 7954249382dSDoug Rabson break; 7964249382dSDoug Rabson 7974249382dSDoug Rabson /* 7984249382dSDoug Rabson * Put this card back to the Sleep state and 7994249382dSDoug Rabson * simultaneously move all cards which don't have a 8004249382dSDoug Rabson * CSN yet to Isolation state. 8014249382dSDoug Rabson */ 8024249382dSDoug Rabson pnp_write(PNP_WAKE, 0); 8034249382dSDoug Rabson } 8044249382dSDoug Rabson 8054249382dSDoug Rabson /* 8064249382dSDoug Rabson * Unless we have chosen the wrong read port, all cards will 8074249382dSDoug Rabson * be in Sleep state. Put them back into WaitForKey for 8084249382dSDoug Rabson * now. Their resources will be programmed later. 8094249382dSDoug Rabson */ 8104249382dSDoug Rabson pnp_write(PNP_CONFIG_CONTROL, PNP_CONFIG_CONTROL_WAIT_FOR_KEY); 8114249382dSDoug Rabson 8125b45337dSDoug Rabson /* 8135b45337dSDoug Rabson * Cleanup. 8145b45337dSDoug Rabson */ 8155b45337dSDoug Rabson if (resources) 8165b45337dSDoug Rabson free(resources, M_TEMP); 8175b45337dSDoug Rabson 8184249382dSDoug Rabson return found; 8194249382dSDoug Rabson } 8204249382dSDoug Rabson 8214249382dSDoug Rabson 8224249382dSDoug Rabson /* 8234249382dSDoug Rabson * pnp_identify() 8244249382dSDoug Rabson * 8254249382dSDoug Rabson * autoconfiguration of pnp devices. This routine just runs the 8264249382dSDoug Rabson * isolation protocol over several ports, until one is successful. 8274249382dSDoug Rabson * 8284249382dSDoug Rabson * may be called more than once ? 8294249382dSDoug Rabson * 8304249382dSDoug Rabson */ 8314249382dSDoug Rabson 8324249382dSDoug Rabson static void 8334249382dSDoug Rabson pnp_identify(driver_t *driver, device_t parent) 8344249382dSDoug Rabson { 8354249382dSDoug Rabson int num_pnp_devs; 8364249382dSDoug Rabson 8374249382dSDoug Rabson #if 0 8384249382dSDoug Rabson if (pnp_ldn_overrides[0].csn == 0) { 8394249382dSDoug Rabson if (bootverbose) 8404249382dSDoug Rabson printf("Initializing PnP override table\n"); 8414249382dSDoug Rabson bzero (pnp_ldn_overrides, sizeof(pnp_ldn_overrides)); 8424249382dSDoug Rabson pnp_ldn_overrides[0].csn = 255 ; 8434249382dSDoug Rabson } 8444249382dSDoug Rabson #endif 8454249382dSDoug Rabson 8464249382dSDoug Rabson /* Try various READ_DATA ports from 0x203-0x3ff */ 8474249382dSDoug Rabson for (pnp_rd_port = 0x80; (pnp_rd_port < 0xff); pnp_rd_port += 0x10) { 8484249382dSDoug Rabson if (bootverbose) 8494249382dSDoug Rabson printf("Trying Read_Port at %x\n", (pnp_rd_port << 2) | 0x3); 8504249382dSDoug Rabson 8514249382dSDoug Rabson num_pnp_devs = pnp_isolation_protocol(parent); 8524249382dSDoug Rabson if (num_pnp_devs) 8534249382dSDoug Rabson break; 8544249382dSDoug Rabson } 8554249382dSDoug Rabson } 8564249382dSDoug Rabson 8574249382dSDoug Rabson static device_method_t pnp_methods[] = { 8584249382dSDoug Rabson /* Device interface */ 8594249382dSDoug Rabson DEVMETHOD(device_identify, pnp_identify), 8604249382dSDoug Rabson 8614249382dSDoug Rabson { 0, 0 } 8624249382dSDoug Rabson }; 8634249382dSDoug Rabson 8644249382dSDoug Rabson static driver_t pnp_driver = { 8654249382dSDoug Rabson "pnp", 8664249382dSDoug Rabson pnp_methods, 8674249382dSDoug Rabson 1, /* no softc */ 8684249382dSDoug Rabson }; 8694249382dSDoug Rabson 8704249382dSDoug Rabson static devclass_t pnp_devclass; 8714249382dSDoug Rabson 8724249382dSDoug Rabson DRIVER_MODULE(pnp, isa, pnp_driver, pnp_devclass, 0, 0); 873