viapm.c revision 116671
10SN/A/*- 20SN/A * Copyright (c) 2001 Alcove - Nicolas Souchu 30SN/A * All rights reserved. 40SN/A * 50SN/A * Redistribution and use in source and binary forms, with or without 60SN/A * modification, are permitted provided that the following conditions 70SN/A * are met: 80SN/A * 1. Redistributions of source code must retain the above copyright 90SN/A * notice, this list of conditions and the following disclaimer. 100SN/A * 2. Redistributions in binary form must reproduce the above copyright 119980SDana.Myers@Sun.COM * notice, this list of conditions and the following disclaimer in the 120SN/A * documentation and/or other materials provided with the distribution. 130SN/A * 140SN/A * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 150SN/A * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 160SN/A * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 170SN/A * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 180SN/A * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 190SN/A * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 200SN/A * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 210SN/A * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 220SN/A * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 230SN/A * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 240SN/A * SUCH DAMAGE. 250SN/A */ 260SN/A 270SN/A#include <sys/cdefs.h> 280SN/A__FBSDID("$FreeBSD: head/sys/pci/viapm.c 116671 2003-06-22 06:50:02Z mdodd $"); 290SN/A 300SN/A#include <sys/param.h> 310SN/A#include <sys/kernel.h> 320SN/A#include <sys/systm.h> 330SN/A#include <sys/module.h> 340SN/A#include <sys/bus.h> 350SN/A#include <sys/uio.h> 360SN/A 370SN/A#include <machine/bus_pio.h> 380SN/A#include <machine/bus_memio.h> 390SN/A#include <machine/bus.h> 400SN/A#include <machine/clock.h> /* for DELAY */ 410SN/A#include <machine/resource.h> 420SN/A#include <sys/rman.h> 430SN/A 440SN/A#include <pci/pcivar.h> 450SN/A#include <pci/pcireg.h> 460SN/A 470SN/A#include <dev/iicbus/iiconf.h> 480SN/A#include <dev/iicbus/iicbus.h> 490SN/A 500SN/A#include <dev/smbus/smbconf.h> 510SN/A#include <dev/smbus/smbus.h> 520SN/A 530SN/A#include "iicbb_if.h" 540SN/A#include "smbus_if.h" 550SN/A 560SN/A#define VIAPM_DEBUG(x) if (viapm_debug) (x) 570SN/A 580SN/A#ifdef DEBUG 590SN/Astatic int viapm_debug = 1; 600SN/A#else 610SN/Astatic int viapm_debug = 0; 620SN/A#endif 630SN/A 640SN/A#define VIA_586B_PMU_ID 0x30401106 650SN/A#define VIA_596A_PMU_ID 0x30501106 660SN/A#define VIA_596B_PMU_ID 0x30511106 670SN/A#define VIA_686A_PMU_ID 0x30571106 680SN/A#define VIA_8233_PMU_ID 0x30741106 690SN/A#define VIA_8233A_PMU_ID 0x31471106 700SN/A 710SN/A#define VIAPM_INB(port) \ 720SN/A ((u_char)bus_space_read_1(viapm->st, viapm->sh, port)) 730SN/A#define VIAPM_OUTB(port,val) \ 740SN/A (bus_space_write_1(viapm->st, viapm->sh, port, (u_char)(val))) 750SN/A 760SN/A#define VIAPM_TYP_UNKNOWN 0 770SN/A#define VIAPM_TYP_586B_3040E 1 780SN/A#define VIAPM_TYP_586B_3040F 2 790SN/A#define VIAPM_TYP_596B 3 800SN/A#define VIAPM_TYP_686A 4 810SN/A#define VIAPM_TYP_8233 5 820SN/A 830SN/Astruct viapm_softc { 840SN/A int type; 850SN/A u_int32_t base; 860SN/A bus_space_tag_t st; 870SN/A bus_space_handle_t sh; 880SN/A int iorid; 890SN/A int irqrid; 900SN/A struct resource *iores; 910SN/A struct resource *irqres; 920SN/A void *irqih; 930SN/A 940SN/A device_t iicbb; 950SN/A device_t smbus; 960SN/A}; 970SN/A 980SN/Astatic devclass_t viapm_devclass; 990SN/Astatic devclass_t viapropm_devclass; 1000SN/A 1010SN/A/* 1020SN/A * VT82C586B definitions 1030SN/A */ 1040SN/A 1050SN/A#define VIAPM_586B_REVID 0x08 1060SN/A 1070SN/A#define VIAPM_586B_3040E_BASE 0x20 1080SN/A#define VIAPM_586B_3040E_ACTIV 0x4 /* 16 bits */ 1090SN/A 1100SN/A#define VIAPM_586B_3040F_BASE 0x48 1110SN/A#define VIAPM_586B_3040F_ACTIV 0x41 /* 8 bits */ 1120SN/A 1130SN/A#define VIAPM_586B_OEM_REV_E 0x00 1140SN/A#define VIAPM_586B_OEM_REV_F 0x01 1150SN/A#define VIAPM_586B_PROD_REV_A 0x10 1160SN/A 1170SN/A#define VIAPM_586B_BA_MASK 0x0000ff00 1180SN/A 1190SN/A#define GPIO_DIR 0x40 1209980SDana.Myers@Sun.COM#define GPIO_VAL 0x42 1210SN/A#define EXTSMI_VAL 0x44 1220SN/A 1230SN/A#define VIAPM_SCL 0x02 /* GPIO1_VAL */ 1240SN/A#define VIAPM_SDA 0x04 /* GPIO2_VAL */ 1250SN/A 1260SN/A/* 1270SN/A * VIAPRO common definitions 1280SN/A */ 1290SN/A 1300SN/A#define VIAPM_PRO_BA_MASK 0x0000fff0 1310SN/A#define VIAPM_PRO_SMBCTRL 0xd2 1329980SDana.Myers@Sun.COM#define VIAPM_PRO_REVID 0xd6 1339980SDana.Myers@Sun.COM 1349980SDana.Myers@Sun.COM/* 1359980SDana.Myers@Sun.COM * VT82C686A definitions 1369980SDana.Myers@Sun.COM */ 1379980SDana.Myers@Sun.COM 1389980SDana.Myers@Sun.COM#define VIAPM_PRO_BASE 0x90 1399980SDana.Myers@Sun.COM 1409980SDana.Myers@Sun.COM#define SMBHST 0x0 1419980SDana.Myers@Sun.COM#define SMBHSL 0x1 1429980SDana.Myers@Sun.COM#define SMBHCTRL 0x2 1439980SDana.Myers@Sun.COM#define SMBHCMD 0x3 1449980SDana.Myers@Sun.COM#define SMBHADDR 0x4 1459980SDana.Myers@Sun.COM#define SMBHDATA0 0x5 1469980SDana.Myers@Sun.COM#define SMBHDATA1 0x6 1479980SDana.Myers@Sun.COM#define SMBHBLOCK 0x7 1489980SDana.Myers@Sun.COM 1499980SDana.Myers@Sun.COM#define SMBSST 0x1 1509980SDana.Myers@Sun.COM#define SMBSCTRL 0x8 1519980SDana.Myers@Sun.COM#define SMBSSDWCMD 0x9 1529980SDana.Myers@Sun.COM#define SMBSEVENT 0xa 1539980SDana.Myers@Sun.COM#define SMBSDATA 0xc 1549980SDana.Myers@Sun.COM 1559980SDana.Myers@Sun.COM#define SMBHST_RESERVED 0xef /* reserved bits */ 1569980SDana.Myers@Sun.COM#define SMBHST_FAILED 0x10 /* failed bus transaction */ 1579980SDana.Myers@Sun.COM#define SMBHST_COLLID 0x08 /* bus collision */ 1589980SDana.Myers@Sun.COM#define SMBHST_ERROR 0x04 /* device error */ 1599980SDana.Myers@Sun.COM#define SMBHST_INTR 0x02 /* command completed */ 1609980SDana.Myers@Sun.COM#define SMBHST_BUSY 0x01 /* host busy */ 1619980SDana.Myers@Sun.COM 1629980SDana.Myers@Sun.COM#define SMBHCTRL_START 0x40 /* start command */ 1639980SDana.Myers@Sun.COM#define SMBHCTRL_PROTO 0x1c /* command protocol mask */ 1649980SDana.Myers@Sun.COM#define SMBHCTRL_QUICK 0x00 1659980SDana.Myers@Sun.COM#define SMBHCTRL_SENDRECV 0x04 1669980SDana.Myers@Sun.COM#define SMBHCTRL_BYTE 0x08 1679980SDana.Myers@Sun.COM#define SMBHCTRL_WORD 0x0c 1689980SDana.Myers@Sun.COM#define SMBHCTRL_BLOCK 0x14 1699980SDana.Myers@Sun.COM#define SMBHCTRL_KILL 0x02 /* stop the current transaction */ 1709980SDana.Myers@Sun.COM#define SMBHCTRL_ENABLE 0x01 /* enable interrupts */ 1719980SDana.Myers@Sun.COM 1729980SDana.Myers@Sun.COM#define SMBSCTRL_ENABLE 0x01 /* enable slave */ 1739980SDana.Myers@Sun.COM 1749980SDana.Myers@Sun.COM 1759980SDana.Myers@Sun.COM/* 1769980SDana.Myers@Sun.COM * VIA8233 definitions 1779980SDana.Myers@Sun.COM */ 1789980SDana.Myers@Sun.COM 1799980SDana.Myers@Sun.COM#define VIAPM_8233_BASE 0xD0 1809980SDana.Myers@Sun.COM 1810SN/Astatic int 1820SN/Aviapm_586b_probe(device_t dev) 1830SN/A{ 1840SN/A struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 1850SN/A u_int32_t l; 1860SN/A u_int16_t s; 1870SN/A u_int8_t c; 1880SN/A 1890SN/A switch (pci_get_devid(dev)) { 1900SN/A case VIA_586B_PMU_ID: 1910SN/A 1920SN/A bzero(viapm, sizeof(struct viapm_softc)); 1930SN/A 1940SN/A l = pci_read_config(dev, VIAPM_586B_REVID, 1); 1950SN/A switch (l) { 1960SN/A case VIAPM_586B_OEM_REV_E: 1979980SDana.Myers@Sun.COM viapm->type = VIAPM_TYP_586B_3040E; 1980SN/A viapm->iorid = VIAPM_586B_3040E_BASE; 1990SN/A 2000SN/A /* Activate IO block access */ 2010SN/A s = pci_read_config(dev, VIAPM_586B_3040E_ACTIV, 2); 2020SN/A pci_write_config(dev, VIAPM_586B_3040E_ACTIV, s | 0x1, 2); 2030SN/A break; 2040SN/A 2050SN/A case VIAPM_586B_OEM_REV_F: 2060SN/A case VIAPM_586B_PROD_REV_A: 2070SN/A default: 2089980SDana.Myers@Sun.COM viapm->type = VIAPM_TYP_586B_3040F; 2090SN/A viapm->iorid = VIAPM_586B_3040F_BASE; 2100SN/A 2110SN/A /* Activate IO block access */ 2120SN/A c = pci_read_config(dev, VIAPM_586B_3040F_ACTIV, 1); 2130SN/A pci_write_config(dev, VIAPM_586B_3040F_ACTIV, c | 0x80, 1); 2140SN/A break; 2150SN/A } 2160SN/A 2170SN/A viapm->base = pci_read_config(dev, viapm->iorid, 4) & 2180SN/A VIAPM_586B_BA_MASK; 2190SN/A 2200SN/A /* 2210SN/A * We have to set the I/O resources by hand because it is 2220SN/A * described outside the viapmope of the traditional maps 2230SN/A */ 2240SN/A if (bus_set_resource(dev, SYS_RES_IOPORT, viapm->iorid, 2250SN/A viapm->base, 256)) { 2260SN/A device_printf(dev, "could not set bus resource\n"); 2270SN/A return ENXIO; 2280SN/A } 2290SN/A device_set_desc(dev, "VIA VT82C586B Power Management Unit"); 2300SN/A return 0; 2310SN/A 2320SN/A default: 2330SN/A break; 2340SN/A } 2350SN/A 2360SN/A return ENXIO; 2370SN/A} 2380SN/A 2390SN/A 2400SN/Astatic int 2410SN/Aviapm_pro_probe(device_t dev) 2420SN/A{ 2430SN/A struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 2440SN/A#ifdef VIAPM_BASE_ADDR 2450SN/A u_int32_t l; 2460SN/A#endif 2470SN/A u_int32_t base_cfgreg; 2487851SDana.Myers@Sun.COM char *desc; 2490SN/A 25011225SDana.Myers@Sun.COM switch (pci_get_devid(dev)) { 25111225SDana.Myers@Sun.COM case VIA_596A_PMU_ID: 25211225SDana.Myers@Sun.COM desc = "VIA VT82C596A Power Management Unit"; 25311225SDana.Myers@Sun.COM viapm->type = VIAPM_TYP_596B; 25411225SDana.Myers@Sun.COM base_cfgreg = VIAPM_PRO_BASE; 25511225SDana.Myers@Sun.COM goto viapro; 25611225SDana.Myers@Sun.COM 2570SN/A case VIA_596B_PMU_ID: 2580SN/A desc = "VIA VT82C596B Power Management Unit"; 2590SN/A viapm->type = VIAPM_TYP_596B; 2600SN/A base_cfgreg = VIAPM_PRO_BASE; 26111225SDana.Myers@Sun.COM goto viapro; 26211225SDana.Myers@Sun.COM 2639980SDana.Myers@Sun.COM case VIA_686A_PMU_ID: 2649980SDana.Myers@Sun.COM desc = "VIA VT82C686A Power Management Unit"; 2650SN/A viapm->type = VIAPM_TYP_686A; 2660SN/A base_cfgreg = VIAPM_PRO_BASE; 2670SN/A goto viapro; 26811225SDana.Myers@Sun.COM 26911225SDana.Myers@Sun.COM case VIA_8233_PMU_ID: 27011225SDana.Myers@Sun.COM case VIA_8233A_PMU_ID: 2710SN/A desc = "VIA VT8233 Power Management Unit"; 2720SN/A viapm->type = VIAPM_TYP_UNKNOWN; 2730SN/A base_cfgreg = VIAPM_8233_BASE; 2740SN/A goto viapro; 2750SN/A 2760SN/A viapro: 2770SN/A 2780SN/A#ifdef VIAPM_BASE_ADDR 2797851SDana.Myers@Sun.COM /* force VIAPM I/O base address */ 28011225SDana.Myers@Sun.COM 28111225SDana.Myers@Sun.COM /* enable the SMBus controller function */ 2820SN/A l = pci_read_config(dev, VIAPM_PRO_SMBCTRL, 1); 2830SN/A pci_write_config(dev, VIAPM_PRO_SMBCTRL, l | 1, 1); 2840SN/A 2850SN/A /* write the base address */ 2860SN/A pci_write_config(dev, base_cfgreg, 2870SN/A VIAPM_BASE_ADDR & VIAPM_PRO_BA_MASK, 4); 2880SN/A#endif 2890SN/A 2900SN/A viapm->base = pci_read_config(dev, base_cfgreg, 4) & VIAPM_PRO_BA_MASK; 29111225SDana.Myers@Sun.COM 2920SN/A /* 2930SN/A * We have to set the I/O resources by hand because it is 2942623SN/A * described outside the viapmope of the traditional maps 2950SN/A */ 2960SN/A viapm->iorid = base_cfgreg; 2970SN/A if (bus_set_resource(dev, SYS_RES_IOPORT, viapm->iorid, 2980SN/A viapm->base, 16)) { 2990SN/A device_printf(dev, "could not set bus resource 0x%x\n", 3000SN/A viapm->base); 3010SN/A return ENXIO; 3020SN/A } 3030SN/A 3040SN/A if (1 || bootverbose) { 3050SN/A device_printf(dev, "SMBus I/O base at 0x%x\n", viapm->base); 3060SN/A } 30711225SDana.Myers@Sun.COM 3080SN/A device_set_desc(dev, desc); 3090SN/A return 0; 3100SN/A 3110SN/A default: 3120SN/A break; 3130SN/A } 3140SN/A 3150SN/A return ENXIO; 31611225SDana.Myers@Sun.COM} 3170SN/A 31811225SDana.Myers@Sun.COMstatic int 3190SN/Aviapm_pro_attach(device_t dev) 32011225SDana.Myers@Sun.COM{ 32111225SDana.Myers@Sun.COM struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 32211225SDana.Myers@Sun.COM u_int32_t l; 3230SN/A 32411225SDana.Myers@Sun.COM if (!(viapm->iores = bus_alloc_resource(dev, SYS_RES_IOPORT, 32511225SDana.Myers@Sun.COM &viapm->iorid, 0l, ~0l, 1, RF_ACTIVE))) { 3267851SDana.Myers@Sun.COM device_printf(dev, "could not allocate bus space\n"); 32711225SDana.Myers@Sun.COM goto error; 32811225SDana.Myers@Sun.COM } 32911225SDana.Myers@Sun.COM viapm->st = rman_get_bustag(viapm->iores); 33011225SDana.Myers@Sun.COM viapm->sh = rman_get_bushandle(viapm->iores); 33111225SDana.Myers@Sun.COM 33211225SDana.Myers@Sun.COM#if notyet 33311225SDana.Myers@Sun.COM /* force irq 9 */ 33411225SDana.Myers@Sun.COM l = pci_read_config(dev, VIAPM_PRO_SMBCTRL, 1); 33511225SDana.Myers@Sun.COM pci_write_config(dev, VIAPM_PRO_SMBCTRL, l | 0x80, 1); 33611225SDana.Myers@Sun.COM 33711225SDana.Myers@Sun.COM viapm->irqrid = 0; 33811225SDana.Myers@Sun.COM if (!(viapm->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, 33911225SDana.Myers@Sun.COM &viapm->irqrid, 9, 9, 1, 3400SN/A RF_SHAREABLE | RF_ACTIVE))) { 34111225SDana.Myers@Sun.COM device_printf(dev, "could not allocate irq\n"); 34211225SDana.Myers@Sun.COM goto error; 34311225SDana.Myers@Sun.COM } 34411225SDana.Myers@Sun.COM 3457851SDana.Myers@Sun.COM if (bus_setup_intr(dev, viapm->irqres, INTR_TYPE_MISC, 34611225SDana.Myers@Sun.COM (driver_intr_t *) viasmb_intr, viapm, &viapm->irqih)) { 34711225SDana.Myers@Sun.COM device_printf(dev, "could not setup irq\n"); 3487851SDana.Myers@Sun.COM goto error; 34911225SDana.Myers@Sun.COM } 3500SN/A#endif 35111225SDana.Myers@Sun.COM 35211225SDana.Myers@Sun.COM if (1 | bootverbose) { 3530SN/A l = pci_read_config(dev, VIAPM_PRO_REVID, 1); 35411225SDana.Myers@Sun.COM device_printf(dev, "SMBus revision code 0x%x\n", l); 3550SN/A } 3560SN/A 3570SN/A viapm->smbus = device_add_child(dev, "smbus", -1); 3580SN/A 35911225SDana.Myers@Sun.COM /* probe and attach the smbus */ 36011225SDana.Myers@Sun.COM bus_generic_attach(dev); 3610SN/A 36211225SDana.Myers@Sun.COM /* disable slave function */ 36311225SDana.Myers@Sun.COM VIAPM_OUTB(SMBSCTRL, VIAPM_INB(SMBSCTRL) & ~SMBSCTRL_ENABLE); 36411225SDana.Myers@Sun.COM 36511225SDana.Myers@Sun.COM /* enable the SMBus controller function */ 36611225SDana.Myers@Sun.COM l = pci_read_config(dev, VIAPM_PRO_SMBCTRL, 1); 36711225SDana.Myers@Sun.COM pci_write_config(dev, VIAPM_PRO_SMBCTRL, l | 1, 1); 36811225SDana.Myers@Sun.COM 36911225SDana.Myers@Sun.COM#if notyet 37011225SDana.Myers@Sun.COM /* enable interrupts */ 3710SN/A VIAPM_OUTB(SMBHCTRL, VIAPM_INB(SMBHCTRL) | SMBHCTRL_ENABLE); 37211225SDana.Myers@Sun.COM#endif 3730SN/A 37411225SDana.Myers@Sun.COM return 0; 37511225SDana.Myers@Sun.COM 37611225SDana.Myers@Sun.COMerror: 37711225SDana.Myers@Sun.COM if (viapm->iores) 3787851SDana.Myers@Sun.COM bus_release_resource(dev, SYS_RES_IOPORT, viapm->iorid, viapm->iores); 37911225SDana.Myers@Sun.COM#if notyet 38011225SDana.Myers@Sun.COM if (viapm->irqres) 38111225SDana.Myers@Sun.COM bus_release_resource(dev, SYS_RES_IRQ, viapm->irqrid, viapm->irqres); 38211225SDana.Myers@Sun.COM#endif 38311225SDana.Myers@Sun.COM 38411225SDana.Myers@Sun.COM return ENXIO; 3850SN/A} 3860SN/A 38711225SDana.Myers@Sun.COMstatic int 38811225SDana.Myers@Sun.COMviapm_586b_attach(device_t dev) 38911225SDana.Myers@Sun.COM{ 39011225SDana.Myers@Sun.COM struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 39111225SDana.Myers@Sun.COM 39211225SDana.Myers@Sun.COM if (!(viapm->iores = bus_alloc_resource(dev, SYS_RES_IOPORT, 39311225SDana.Myers@Sun.COM &viapm->iorid, 0ul, ~0ul, 1, RF_ACTIVE | RF_SHAREABLE))) { 39411225SDana.Myers@Sun.COM device_printf(dev, "could not allocate bus resource\n"); 39511225SDana.Myers@Sun.COM return ENXIO; 39611225SDana.Myers@Sun.COM } 39711225SDana.Myers@Sun.COM viapm->st = rman_get_bustag(viapm->iores); 39811225SDana.Myers@Sun.COM viapm->sh = rman_get_bushandle(viapm->iores); 39911225SDana.Myers@Sun.COM 40011225SDana.Myers@Sun.COM VIAPM_OUTB(GPIO_DIR, VIAPM_INB(GPIO_DIR) | VIAPM_SCL | VIAPM_SDA); 40111225SDana.Myers@Sun.COM 40211225SDana.Myers@Sun.COM /* add generic bit-banging code */ 40311225SDana.Myers@Sun.COM if (!(viapm->iicbb = device_add_child(dev, "iicbb", -1))) 40411225SDana.Myers@Sun.COM goto error; 40511225SDana.Myers@Sun.COM 40611225SDana.Myers@Sun.COM bus_generic_attach(dev); 40711225SDana.Myers@Sun.COM 4080SN/A return 0; 40911225SDana.Myers@Sun.COM 41011225SDana.Myers@Sun.COMerror: 41111225SDana.Myers@Sun.COM if (viapm->iores) 41211225SDana.Myers@Sun.COM bus_release_resource(dev, SYS_RES_IOPORT, 41311225SDana.Myers@Sun.COM viapm->iorid, viapm->iores); 41411225SDana.Myers@Sun.COM return ENXIO; 41511225SDana.Myers@Sun.COM} 41611225SDana.Myers@Sun.COM 41711225SDana.Myers@Sun.COMstatic int 41811225SDana.Myers@Sun.COMviapm_586b_detach(device_t dev) 41911225SDana.Myers@Sun.COM{ 42011225SDana.Myers@Sun.COM struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 42111225SDana.Myers@Sun.COM int error; 42211225SDana.Myers@Sun.COM 42311225SDana.Myers@Sun.COM bus_generic_detach(dev); 42411225SDana.Myers@Sun.COM if (viapm->iicbb) { 42511225SDana.Myers@Sun.COM device_delete_child(dev, viapm->iicbb); 42611225SDana.Myers@Sun.COM } 42711225SDana.Myers@Sun.COM 42811225SDana.Myers@Sun.COM if (viapm->iores && (error = bus_release_resource(dev, SYS_RES_IOPORT, 42911225SDana.Myers@Sun.COM viapm->iorid, viapm->iores))) 43011225SDana.Myers@Sun.COM return (error); 43111225SDana.Myers@Sun.COM 43211225SDana.Myers@Sun.COM return 0; 43311225SDana.Myers@Sun.COM} 43411225SDana.Myers@Sun.COM 43511225SDana.Myers@Sun.COMstatic int 43611225SDana.Myers@Sun.COMviapm_pro_detach(device_t dev) 43711225SDana.Myers@Sun.COM{ 43811225SDana.Myers@Sun.COM struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 43911225SDana.Myers@Sun.COM int error; 44011225SDana.Myers@Sun.COM 44111225SDana.Myers@Sun.COM bus_generic_detach(dev); 44211225SDana.Myers@Sun.COM if (viapm->smbus) { 44311225SDana.Myers@Sun.COM device_delete_child(dev, viapm->smbus); 44411225SDana.Myers@Sun.COM } 44511225SDana.Myers@Sun.COM 44611225SDana.Myers@Sun.COM if ((error = bus_release_resource(dev, SYS_RES_IOPORT, 44711225SDana.Myers@Sun.COM viapm->iorid, viapm->iores))) 44811225SDana.Myers@Sun.COM return (error); 4490SN/A 4500SN/A#if notyet 4510SN/A if ((error = bus_release_resource(dev, SYS_RES_IRQ, 4527851SDana.Myers@Sun.COM viapm->irqrid, viapm->irqres)) 4537851SDana.Myers@Sun.COM return (error); 4540SN/A#endif 4550SN/A 4560SN/A return 0; 4570SN/A} 45811225SDana.Myers@Sun.COM 45911225SDana.Myers@Sun.COMstatic int 4600SN/Aviabb_callback(device_t dev, int index, caddr_t *data) 4610SN/A{ 4620SN/A return 0; 4630SN/A} 4640SN/A 4650SN/Astatic void 4660SN/Aviabb_setscl(device_t dev, int ctrl) 4670SN/A{ 4680SN/A struct viapm_softc *viapm = device_get_softc(dev); 469 u_char val; 470 471 val = VIAPM_INB(GPIO_VAL); 472 473 if (ctrl) 474 val |= VIAPM_SCL; 475 else 476 val &= ~VIAPM_SCL; 477 478 VIAPM_OUTB(GPIO_VAL, val); 479 480 return; 481} 482 483static void 484viabb_setsda(device_t dev, int data) 485{ 486 struct viapm_softc *viapm = device_get_softc(dev); 487 u_char val; 488 489 val = VIAPM_INB(GPIO_VAL); 490 491 if (data) 492 val |= VIAPM_SDA; 493 else 494 val &= ~VIAPM_SDA; 495 496 VIAPM_OUTB(GPIO_VAL, val); 497 498 return; 499} 500 501static int 502viabb_reset(device_t dev, u_char speed, u_char addr, u_char *oldaddr) 503{ 504 /* reset bus */ 505 viabb_setsda(dev, 1); 506 viabb_setscl(dev, 1); 507 508 return (IIC_ENOADDR); 509} 510 511static int 512viabb_getscl(device_t dev) 513{ 514 struct viapm_softc *viapm = device_get_softc(dev); 515 516 return ((VIAPM_INB(EXTSMI_VAL) & VIAPM_SCL) != 0); 517} 518 519static int 520viabb_getsda(device_t dev) 521{ 522 struct viapm_softc *viapm = device_get_softc(dev); 523 524 return ((VIAPM_INB(EXTSMI_VAL) & VIAPM_SDA) != 0); 525} 526 527static int 528viapm_abort(struct viapm_softc *viapm) 529{ 530 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_KILL); 531 DELAY(10); 532 533 return (0); 534} 535 536static int 537viapm_clear(struct viapm_softc *viapm) 538{ 539 VIAPM_OUTB(SMBHST, SMBHST_FAILED | SMBHST_COLLID | 540 SMBHST_ERROR | SMBHST_INTR); 541 DELAY(10); 542 543 return (0); 544} 545 546static int 547viapm_busy(struct viapm_softc *viapm) 548{ 549 u_char sts; 550 551 sts = VIAPM_INB(SMBHST); 552 553 VIAPM_DEBUG(printf("viapm: idle? STS=0x%x\n", sts)); 554 555 return (sts & SMBHST_BUSY); 556} 557 558/* 559 * Poll the SMBus controller 560 */ 561static int 562viapm_wait(struct viapm_softc *viapm) 563{ 564 int count = 10000; 565 u_char sts = 0; 566 int error; 567 568 /* wait for command to complete and SMBus controller is idle */ 569 while(count--) { 570 DELAY(10); 571 sts = VIAPM_INB(SMBHST); 572 573 /* check if the controller is processing a command */ 574 if (!(sts & SMBHST_BUSY) && (sts & SMBHST_INTR)) 575 break; 576 } 577 578 VIAPM_DEBUG(printf("viapm: SMBHST=0x%x\n", sts)); 579 580 error = SMB_ENOERR; 581 582 if (!count) 583 error |= SMB_ETIMEOUT; 584 585 if (sts & SMBHST_FAILED) 586 error |= SMB_EABORT; 587 588 if (sts & SMBHST_COLLID) 589 error |= SMB_ENOACK; 590 591 if (sts & SMBHST_ERROR) 592 error |= SMB_EBUSERR; 593 594 if (error != SMB_ENOERR) 595 viapm_abort(viapm); 596 597 viapm_clear(viapm); 598 599 return (error); 600} 601 602static int 603viasmb_callback(device_t dev, int index, caddr_t *data) 604{ 605 int error = 0; 606 607 switch (index) { 608 case SMB_REQUEST_BUS: 609 case SMB_RELEASE_BUS: 610 /* ok, bus allocation accepted */ 611 break; 612 default: 613 error = EINVAL; 614 } 615 616 return (error); 617} 618 619static int 620viasmb_quick(device_t dev, u_char slave, int how) 621{ 622 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 623 int error; 624 625 viapm_clear(viapm); 626 if (viapm_busy(viapm)) 627 return (EBUSY); 628 629 switch (how) { 630 case SMB_QWRITE: 631 VIAPM_DEBUG(printf("viapm: QWRITE to 0x%x", slave)); 632 VIAPM_OUTB(SMBHADDR, slave & ~LSB); 633 break; 634 case SMB_QREAD: 635 VIAPM_DEBUG(printf("viapm: QREAD to 0x%x", slave)); 636 VIAPM_OUTB(SMBHADDR, slave | LSB); 637 break; 638 default: 639 panic("%s: unknown QUICK command (%x)!", __FUNCTION__, 640 how); 641 } 642 643 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_QUICK); 644 645 error = viapm_wait(viapm); 646 647 return (error); 648} 649 650static int 651viasmb_sendb(device_t dev, u_char slave, char byte) 652{ 653 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 654 int error; 655 656 viapm_clear(viapm); 657 if (viapm_busy(viapm)) 658 return (EBUSY); 659 660 VIAPM_OUTB(SMBHADDR, slave & ~ LSB); 661 VIAPM_OUTB(SMBHCMD, byte); 662 663 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_SENDRECV); 664 665 error = viapm_wait(viapm); 666 667 VIAPM_DEBUG(printf("viapm: SENDB to 0x%x, byte=0x%x, error=0x%x\n", slave, byte, error)); 668 669 return (error); 670} 671 672static int 673viasmb_recvb(device_t dev, u_char slave, char *byte) 674{ 675 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 676 int error; 677 678 viapm_clear(viapm); 679 if (viapm_busy(viapm)) 680 return (EBUSY); 681 682 VIAPM_OUTB(SMBHADDR, slave | LSB); 683 684 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_SENDRECV); 685 686 if ((error = viapm_wait(viapm)) == SMB_ENOERR) 687 *byte = VIAPM_INB(SMBHDATA0); 688 689 VIAPM_DEBUG(printf("viapm: RECVB from 0x%x, byte=0x%x, error=0x%x\n", slave, *byte, error)); 690 691 return (error); 692} 693 694static int 695viasmb_writeb(device_t dev, u_char slave, char cmd, char byte) 696{ 697 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 698 int error; 699 700 viapm_clear(viapm); 701 if (viapm_busy(viapm)) 702 return (EBUSY); 703 704 VIAPM_OUTB(SMBHADDR, slave & ~ LSB); 705 VIAPM_OUTB(SMBHCMD, cmd); 706 VIAPM_OUTB(SMBHDATA0, byte); 707 708 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_BYTE); 709 710 error = viapm_wait(viapm); 711 712 VIAPM_DEBUG(printf("viapm: WRITEB to 0x%x, cmd=0x%x, byte=0x%x, error=0x%x\n", slave, cmd, byte, error)); 713 714 return (error); 715} 716 717static int 718viasmb_readb(device_t dev, u_char slave, char cmd, char *byte) 719{ 720 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 721 int error; 722 723 viapm_clear(viapm); 724 if (viapm_busy(viapm)) 725 return (EBUSY); 726 727 VIAPM_OUTB(SMBHADDR, slave | LSB); 728 VIAPM_OUTB(SMBHCMD, cmd); 729 730 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_BYTE); 731 732 if ((error = viapm_wait(viapm)) == SMB_ENOERR) 733 *byte = VIAPM_INB(SMBHDATA0); 734 735 VIAPM_DEBUG(printf("viapm: READB from 0x%x, cmd=0x%x, byte=0x%x, error=0x%x\n", slave, cmd, *byte, error)); 736 737 return (error); 738} 739 740static int 741viasmb_writew(device_t dev, u_char slave, char cmd, short word) 742{ 743 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 744 int error; 745 746 viapm_clear(viapm); 747 if (viapm_busy(viapm)) 748 return (EBUSY); 749 750 VIAPM_OUTB(SMBHADDR, slave & ~ LSB); 751 VIAPM_OUTB(SMBHCMD, cmd); 752 VIAPM_OUTB(SMBHDATA0, word & 0x00ff); 753 VIAPM_OUTB(SMBHDATA1, (word & 0xff00) >> 8); 754 755 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_WORD); 756 757 error = viapm_wait(viapm); 758 759 VIAPM_DEBUG(printf("viapm: WRITEW to 0x%x, cmd=0x%x, word=0x%x, error=0x%x\n", slave, cmd, word, error)); 760 761 return (error); 762} 763 764static int 765viasmb_readw(device_t dev, u_char slave, char cmd, short *word) 766{ 767 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 768 int error; 769 u_char high, low; 770 771 viapm_clear(viapm); 772 if (viapm_busy(viapm)) 773 return (EBUSY); 774 775 VIAPM_OUTB(SMBHADDR, slave | LSB); 776 VIAPM_OUTB(SMBHCMD, cmd); 777 778 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_WORD); 779 780 if ((error = viapm_wait(viapm)) == SMB_ENOERR) { 781 low = VIAPM_INB(SMBHDATA0); 782 high = VIAPM_INB(SMBHDATA1); 783 784 *word = ((high & 0xff) << 8) | (low & 0xff); 785 } 786 787 VIAPM_DEBUG(printf("viapm: READW from 0x%x, cmd=0x%x, word=0x%x, error=0x%x\n", slave, cmd, *word, error)); 788 789 return (error); 790} 791 792static int 793viasmb_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf) 794{ 795 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 796 u_char remain, len, i; 797 int error = SMB_ENOERR; 798 799 viapm_clear(viapm); 800 if (viapm_busy(viapm)) 801 return (EBUSY); 802 803 remain = count; 804 while (remain) { 805 len = min(remain, 32); 806 807 VIAPM_OUTB(SMBHADDR, slave & ~LSB); 808 VIAPM_OUTB(SMBHCMD, cmd); 809 VIAPM_OUTB(SMBHDATA0, len); 810 i = VIAPM_INB(SMBHCTRL); 811 812 /* fill the 32-byte internal buffer */ 813 for (i=0; i<len; i++) { 814 VIAPM_OUTB(SMBHBLOCK, buf[count-remain+i]); 815 DELAY(2); 816 } 817 VIAPM_OUTB(SMBHCMD, cmd); 818 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_BLOCK); 819 820 if ((error = viapm_wait(viapm)) != SMB_ENOERR) 821 goto error; 822 823 remain -= len; 824 } 825 826error: 827 VIAPM_DEBUG(printf("viapm: WRITEBLK to 0x%x, count=0x%x, cmd=0x%x, error=0x%x", slave, count, cmd, error)); 828 829 return (error); 830 831} 832 833static int 834viasmb_bread(device_t dev, u_char slave, char cmd, u_char count, char *buf) 835{ 836 struct viapm_softc *viapm = (struct viapm_softc *)device_get_softc(dev); 837 u_char remain, len, i; 838 int error = SMB_ENOERR; 839 840 viapm_clear(viapm); 841 if (viapm_busy(viapm)) 842 return (EBUSY); 843 844 remain = count; 845 while (remain) { 846 VIAPM_OUTB(SMBHADDR, slave | LSB); 847 VIAPM_OUTB(SMBHCMD, cmd); 848 VIAPM_OUTB(SMBHCTRL, SMBHCTRL_START | SMBHCTRL_BLOCK); 849 850 if ((error = viapm_wait(viapm)) != SMB_ENOERR) 851 goto error; 852 853 len = VIAPM_INB(SMBHDATA0); 854 i = VIAPM_INB(SMBHCTRL); /* reset counter */ 855 856 len = min(len, remain); 857 858 /* read the 32-byte internal buffer */ 859 for (i=0; i<len; i++) { 860 buf[count-remain+i] = VIAPM_INB(SMBHBLOCK); 861 DELAY(2); 862 } 863 864 remain -= len; 865 } 866error: 867 VIAPM_DEBUG(printf("viapm: READBLK to 0x%x, count=0x%x, cmd=0x%x, error=0x%x", slave, count, cmd, error)); 868 869 return (error); 870} 871 872static device_method_t viapm_methods[] = { 873 /* device interface */ 874 DEVMETHOD(device_probe, viapm_586b_probe), 875 DEVMETHOD(device_attach, viapm_586b_attach), 876 DEVMETHOD(device_detach, viapm_586b_detach), 877 878 /* iicbb interface */ 879 DEVMETHOD(iicbb_callback, viabb_callback), 880 DEVMETHOD(iicbb_setscl, viabb_setscl), 881 DEVMETHOD(iicbb_setsda, viabb_setsda), 882 DEVMETHOD(iicbb_getscl, viabb_getscl), 883 DEVMETHOD(iicbb_getsda, viabb_getsda), 884 DEVMETHOD(iicbb_reset, viabb_reset), 885 886 { 0, 0 } 887}; 888 889static driver_t viapm_driver = { 890 "viapm", 891 viapm_methods, 892 sizeof(struct viapm_softc), 893}; 894 895static device_method_t viapropm_methods[] = { 896 /* device interface */ 897 DEVMETHOD(device_probe, viapm_pro_probe), 898 DEVMETHOD(device_attach, viapm_pro_attach), 899 DEVMETHOD(device_detach, viapm_pro_detach), 900 901 /* smbus interface */ 902 DEVMETHOD(smbus_callback, viasmb_callback), 903 DEVMETHOD(smbus_quick, viasmb_quick), 904 DEVMETHOD(smbus_sendb, viasmb_sendb), 905 DEVMETHOD(smbus_recvb, viasmb_recvb), 906 DEVMETHOD(smbus_writeb, viasmb_writeb), 907 DEVMETHOD(smbus_readb, viasmb_readb), 908 DEVMETHOD(smbus_writew, viasmb_writew), 909 DEVMETHOD(smbus_readw, viasmb_readw), 910 DEVMETHOD(smbus_bwrite, viasmb_bwrite), 911 DEVMETHOD(smbus_bread, viasmb_bread), 912 913 { 0, 0 } 914}; 915 916static driver_t viapropm_driver = { 917 "viapropm", 918 viapropm_methods, 919 sizeof(struct viapm_softc), 920}; 921 922DRIVER_MODULE(viapm, pci, viapm_driver, viapm_devclass, 0, 0); 923DRIVER_MODULE(viapropm, pci, viapropm_driver, viapropm_devclass, 0, 0); 924 925MODULE_DEPEND(viapm, pci, 1, 1, 1); 926MODULE_DEPEND(viaprom, pci, 1, 1, 1); 927MODULE_DEPEND(viapm, iicbb, IICBB_MINVER, IICBB_PREFVER, IICBB_MAXVER); 928MODULE_DEPEND(viapropm, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER); 929MODULE_VERSION(viapm, 1); 930