1 /* 2 * This file contains quirk handling code for PnP devices 3 * Some devices do not report all their resources, and need to have extra 4 * resources added. This is most easily accomplished at initialisation time 5 * when building up the resource structure for the first time. 6 * 7 * Copyright (c) 2000 Peter Denison <peterd@pnd-pc.demon.co.uk> 8 * 9 * Heavily based on PCI quirks handling which is 10 * 11 * Copyright (c) 1999 Martin Mares <mj@ucw.cz> 12 */ 13 14 #include <linux/types.h> 15 #include <linux/kernel.h> 16 #include <linux/string.h> 17 #include <linux/slab.h> 18 #include <linux/pnp.h> 19 #include <linux/io.h> 20 #include "base.h" 21 22 23 static void quirk_awe32_resources(struct pnp_dev *dev) 24 { 25 struct pnp_port *port, *port2, *port3; 26 struct pnp_option *res = dev->dependent; 27 28 /* 29 * Unfortunately the isapnp_add_port_resource is too tightly bound 30 * into the PnP discovery sequence, and cannot be used. Link in the 31 * two extra ports (at offset 0x400 and 0x800 from the one given) by 32 * hand. 33 */ 34 for ( ; res ; res = res->next ) { 35 port2 = pnp_alloc(sizeof(struct pnp_port)); 36 if (!port2) 37 return; 38 port3 = pnp_alloc(sizeof(struct pnp_port)); 39 if (!port3) { 40 kfree(port2); 41 return; 42 } 43 port = res->port; 44 memcpy(port2, port, sizeof(struct pnp_port)); 45 memcpy(port3, port, sizeof(struct pnp_port)); 46 port->next = port2; 47 port2->next = port3; 48 port2->min += 0x400; 49 port2->max += 0x400; 50 port3->min += 0x800; 51 port3->max += 0x800; 52 } 53 printk(KERN_INFO "pnp: AWE32 quirk - adding two ports\n"); 54 } 55 56 static void quirk_cmi8330_resources(struct pnp_dev *dev) 57 { 58 struct pnp_option *res = dev->dependent; 59 unsigned long tmp; 60 61 for ( ; res ; res = res->next ) { 62 63 struct pnp_irq *irq; 64 struct pnp_dma *dma; 65 66 for( irq = res->irq; irq; irq = irq->next ) { // Valid irqs are 5, 7, 10 67 tmp = 0x04A0; 68 bitmap_copy(irq->map, &tmp, 16); // 0000 0100 1010 0000 69 } 70 71 for( dma = res->dma; dma; dma = dma->next ) // Valid 8bit dma channels are 1,3 72 if( ( dma->flags & IORESOURCE_DMA_TYPE_MASK ) == IORESOURCE_DMA_8BIT ) 73 dma->map = 0x000A; 74 } 75 printk(KERN_INFO "pnp: CMI8330 quirk - fixing interrupts and dma\n"); 76 } 77 78 static void quirk_sb16audio_resources(struct pnp_dev *dev) 79 { 80 struct pnp_port *port; 81 struct pnp_option *res = dev->dependent; 82 int changed = 0; 83 84 /* 85 * The default range on the mpu port for these devices is 0x388-0x388. 86 * Here we increase that range so that two such cards can be 87 * auto-configured. 88 */ 89 90 for( ; res ; res = res->next ) { 91 port = res->port; 92 if(!port) 93 continue; 94 port = port->next; 95 if(!port) 96 continue; 97 port = port->next; 98 if(!port) 99 continue; 100 if(port->min != port->max) 101 continue; 102 port->max += 0x70; 103 changed = 1; 104 } 105 if(changed) 106 printk(KERN_INFO "pnp: SB audio device quirk - increasing port range\n"); 107 return; 108 } 109 110 static int quirk_smc_fir_enabled(struct pnp_dev *dev) 111 { 112 unsigned long firbase; 113 u8 bank, high, low, chip; 114 115 if (!pnp_port_valid(dev, 1)) 116 return 0; 117 118 firbase = pnp_port_start(dev, 1); 119 120 /* Select register bank 3 */ 121 bank = inb(firbase + 7); 122 bank &= 0xf0; 123 bank |= 3; 124 outb(bank, firbase + 7); 125 126 high = inb(firbase + 0); 127 low = inb(firbase + 1); 128 chip = inb(firbase + 2); 129 130 /* This corresponds to the check in smsc_ircc_present() */ 131 if (high == 0x10 && low == 0xb8 && (chip == 0xf1 || chip == 0xf2)) 132 return 1; 133 134 return 0; 135 } 136 137 static void quirk_smc_enable(struct pnp_dev *dev) 138 { 139 struct resource fir, sir, irq; 140 141 pnp_activate_dev(dev); 142 if (quirk_smc_fir_enabled(dev)) 143 return; 144 145 /* 146 * Sometimes the BIOS claims the device is enabled, but it reports 147 * the wrong FIR resources or doesn't properly configure ISA or LPC 148 * bridges on the way to the device. 149 * 150 * HP nc6000 and nc8000/nw8000 laptops have known problems like 151 * this. Fortunately, they do fix things up if we auto-configure 152 * the device using its _PRS and _SRS methods. 153 */ 154 dev_err(&dev->dev, "%s not responding at SIR 0x%lx, FIR 0x%lx; " 155 "auto-configuring\n", dev->id->id, 156 (unsigned long) pnp_port_start(dev, 0), 157 (unsigned long) pnp_port_start(dev, 1)); 158 159 pnp_disable_dev(dev); 160 pnp_init_resource_table(&dev->res); 161 pnp_auto_config_dev(dev); 162 pnp_activate_dev(dev); 163 if (quirk_smc_fir_enabled(dev)) { 164 dev_err(&dev->dev, "responds at SIR 0x%lx, FIR 0x%lx\n", 165 (unsigned long) pnp_port_start(dev, 0), 166 (unsigned long) pnp_port_start(dev, 1)); 167 return; 168 } 169 170 /* 171 * The Toshiba Portege 4000 _CRS reports the FIR region first, 172 * followed by the SIR region. The BIOS will configure the bridge, 173 * but only if we call _SRS with SIR first, then FIR. It also 174 * reports the IRQ as active high, when it is really active low. 175 */ 176 dev_err(&dev->dev, "not responding at SIR 0x%lx, FIR 0x%lx; " 177 "swapping SIR/FIR and reconfiguring\n", 178 (unsigned long) pnp_port_start(dev, 0), 179 (unsigned long) pnp_port_start(dev, 1)); 180 181 /* 182 * Clear IORESOURCE_AUTO so pnp_activate_dev() doesn't reassign 183 * these resources any more. 184 */ 185 fir = dev->res.port_resource[0]; 186 sir = dev->res.port_resource[1]; 187 fir.flags &= ~IORESOURCE_AUTO; 188 sir.flags &= ~IORESOURCE_AUTO; 189 190 irq = dev->res.irq_resource[0]; 191 irq.flags &= ~IORESOURCE_AUTO; 192 irq.flags &= ~IORESOURCE_BITS; 193 irq.flags |= IORESOURCE_IRQ_LOWEDGE; 194 195 pnp_disable_dev(dev); 196 dev->res.port_resource[0] = sir; 197 dev->res.port_resource[1] = fir; 198 dev->res.irq_resource[0] = irq; 199 pnp_activate_dev(dev); 200 201 if (quirk_smc_fir_enabled(dev)) { 202 dev_err(&dev->dev, "responds at SIR 0x%lx, FIR 0x%lx\n", 203 (unsigned long) pnp_port_start(dev, 0), 204 (unsigned long) pnp_port_start(dev, 1)); 205 return; 206 } 207 208 dev_err(&dev->dev, "giving up; try \"smsc-ircc2.nopnp\" and " 209 "email bjorn.helgaas@hp.com\n"); 210 } 211 212 213 /* 214 * PnP Quirks 215 * Cards or devices that need some tweaking due to incomplete resource info 216 */ 217 218 static struct pnp_fixup pnp_fixups[] = { 219 /* Soundblaster awe io port quirk */ 220 { "CTL0021", quirk_awe32_resources }, 221 { "CTL0022", quirk_awe32_resources }, 222 { "CTL0023", quirk_awe32_resources }, 223 /* CMI 8330 interrupt and dma fix */ 224 { "@X@0001", quirk_cmi8330_resources }, 225 /* Soundblaster audio device io port range quirk */ 226 { "CTL0001", quirk_sb16audio_resources }, 227 { "CTL0031", quirk_sb16audio_resources }, 228 { "CTL0041", quirk_sb16audio_resources }, 229 { "CTL0042", quirk_sb16audio_resources }, 230 { "CTL0043", quirk_sb16audio_resources }, 231 { "CTL0044", quirk_sb16audio_resources }, 232 { "CTL0045", quirk_sb16audio_resources }, 233 { "SMCf010", quirk_smc_enable }, 234 { "" } 235 }; 236 237 void pnp_fixup_device(struct pnp_dev *dev) 238 { 239 int i = 0; 240 241 while (*pnp_fixups[i].id) { 242 if (compare_pnp_id(dev->id,pnp_fixups[i].id)) { 243 pnp_dbg("Calling quirk for %s", 244 dev->dev.bus_id); 245 pnp_fixups[i].quirk_function(dev); 246 } 247 i++; 248 } 249 } 250