static int __init olpc_init(void) { unsigned char *romsig; /* The ioremap check is dangerous; limit what we run it on */ if (!is_geode() || cs5535_has_vsa2()) return 0; spin_lock_init(&ec_lock); romsig = ioremap(0xffffffc0, 16); if (!romsig) return 0; if (strncmp(romsig, "CL1 Q", 7)) goto unmap; if (strncmp(romsig+6, romsig+13, 3)) { printk(KERN_INFO "OLPC BIOS signature looks invalid. " "Assuming not OLPC\n"); goto unmap; } printk(KERN_INFO "OLPC board with OpenFirmware %.16s\n", romsig); olpc_platform_info.flags |= OLPC_F_PRESENT; /* get the platform revision */ platform_detect(); /* assume B1 and above models always have a DCON */ if (olpc_board_at_least(olpc_board(0xb1))) olpc_platform_info.flags |= OLPC_F_DCON; /* get the EC revision */ olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, (unsigned char *) &olpc_platform_info.ecver, 1); #ifdef CONFIG_PCI_OLPC /* If the VSA exists let it emulate PCI, if not emulate in kernel */ if (!cs5535_has_vsa2()) x86_init.pci.arch_init = pci_olpc_init; #endif printk(KERN_INFO "OLPC board revision %s%X (EC=%x)\n", ((olpc_platform_info.boardrev & 0xf) < 8) ? "pre" : "", olpc_platform_info.boardrev >> 4, olpc_platform_info.ecver); unmap: iounmap(romsig); return 0; }
static int __init olpc_init(void) { int r = 0; if (!olpc_ofw_present() || !platform_detect()) return 0; spin_lock_init(&ec_lock); /* assume B1 and above models always have a DCON */ if (olpc_board_at_least(olpc_board(0xb1))) olpc_platform_info.flags |= OLPC_F_DCON; /* get the EC revision */ olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, (unsigned char *) &olpc_platform_info.ecver, 1); #ifdef CONFIG_PCI_OLPC /* If the VSA exists let it emulate PCI, if not emulate in kernel. * XO-1 only. */ if (olpc_platform_info.boardrev < olpc_board_pre(0xd0) && !cs5535_has_vsa2()) x86_init.pci.arch_init = pci_olpc_init; #endif /* EC version 0x5f adds support for wide SCI mask */ if (olpc_platform_info.ecver >= 0x5f) olpc_platform_info.flags |= OLPC_F_EC_WIDE_SCI; printk(KERN_INFO "OLPC board revision %s%X (EC=%x)\n", ((olpc_platform_info.boardrev & 0xf) < 8) ? "pre" : "", olpc_platform_info.boardrev >> 4, olpc_platform_info.ecver); if (olpc_platform_info.boardrev < olpc_board_pre(0xd0)) { /* XO-1 */ r = add_xo1_platform_devices(); if (r) return r; } register_syscore_ops(&olpc_syscore_ops); setup_debugfs(); return 0; }
static int __init olpc_bat_init(void) { int ret = 0; uint8_t status; if (!olpc_platform_info.ecver) return -ENXIO; /* * We've seen a number of EC protocol changes; this driver requires * the latest EC protocol, supported by 0x44 and above. */ if (olpc_platform_info.ecver < 0x44) { printk(KERN_NOTICE "OLPC EC version 0x%02x too old for " "battery driver.\n", olpc_platform_info.ecver); return -ENXIO; } ret = olpc_ec_cmd(EC_BAT_STATUS, NULL, 0, &status, 1); if (ret) return ret; /* Ignore the status. It doesn't actually matter */ bat_pdev = platform_device_register_simple("olpc-battery", 0, NULL, 0); if (IS_ERR(bat_pdev)) return PTR_ERR(bat_pdev); ret = power_supply_register(&bat_pdev->dev, &olpc_ac); if (ret) goto ac_failed; olpc_bat.name = bat_pdev->name; if (olpc_board_at_least(olpc_board_pre(0xd0))) { /* XO-1.5 */ olpc_bat.properties = olpc_xo15_bat_props; olpc_bat.num_properties = ARRAY_SIZE(olpc_xo15_bat_props); } else { /* XO-1 */ olpc_bat.properties = olpc_xo1_bat_props; olpc_bat.num_properties = ARRAY_SIZE(olpc_xo1_bat_props); } ret = power_supply_register(&bat_pdev->dev, &olpc_bat); if (ret) goto battery_failed; ret = device_create_bin_file(olpc_bat.dev, &olpc_bat_eeprom); if (ret) goto eeprom_failed; ret = device_create_file(olpc_bat.dev, &olpc_bat_error); if (ret) goto error_failed; goto success; error_failed: device_remove_bin_file(olpc_bat.dev, &olpc_bat_eeprom); eeprom_failed: power_supply_unregister(&olpc_bat); battery_failed: power_supply_unregister(&olpc_ac); ac_failed: platform_device_unregister(bat_pdev); success: return ret; }
static int olpc_battery_probe(struct platform_device *pdev) { int ret; uint8_t status; /* * We've seen a number of EC protocol changes; this driver requires * the latest EC protocol, supported by 0x44 and above. */ if (olpc_platform_info.ecver < 0x44) { printk(KERN_NOTICE "OLPC EC version 0x%02x too old for " "battery driver.\n", olpc_platform_info.ecver); return -ENXIO; } ret = olpc_ec_cmd(EC_BAT_STATUS, NULL, 0, &status, 1); if (ret) return ret; /* Ignore the status. It doesn't actually matter */ olpc_ac = power_supply_register(&pdev->dev, &olpc_ac_desc, NULL); if (IS_ERR(olpc_ac)) return PTR_ERR(olpc_ac); if (olpc_board_at_least(olpc_board_pre(0xd0))) { /* XO-1.5 */ olpc_bat_desc.properties = olpc_xo15_bat_props; olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo15_bat_props); } else { /* XO-1 */ olpc_bat_desc.properties = olpc_xo1_bat_props; olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo1_bat_props); } olpc_bat = power_supply_register(&pdev->dev, &olpc_bat_desc, NULL); if (IS_ERR(olpc_bat)) { ret = PTR_ERR(olpc_bat); goto battery_failed; } ret = device_create_bin_file(&olpc_bat->dev, &olpc_bat_eeprom); if (ret) goto eeprom_failed; ret = device_create_file(&olpc_bat->dev, &olpc_bat_error); if (ret) goto error_failed; if (olpc_ec_wakeup_available()) { device_set_wakeup_capable(&olpc_ac->dev, true); device_set_wakeup_capable(&olpc_bat->dev, true); } return 0; error_failed: device_remove_bin_file(&olpc_bat->dev, &olpc_bat_eeprom); eeprom_failed: power_supply_unregister(olpc_bat); battery_failed: power_supply_unregister(olpc_ac); return ret; }