^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * HP Compaq TC1100 Tablet WMI Extras Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2007 Carlos Corbacho <carlos@strangeworlds.co.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2004 Jamey Hicks <jamey.hicks@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define GUID "C364AC71-36DB-495A-8494-B439D472A505"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define TC1100_INSTANCE_WIRELESS 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define TC1100_INSTANCE_JOGDIAL 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) MODULE_AUTHOR("Jamey Hicks, Carlos Corbacho");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) MODULE_DESCRIPTION("HP Compaq TC1100 Tablet WMI Extras");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) MODULE_ALIAS("wmi:C364AC71-36DB-495A-8494-B439D472A505");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static struct platform_device *tc1100_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct tc1100_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) u32 wireless;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) u32 jogdial;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static struct tc1100_data suspend_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* --------------------------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) Device Management
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) -------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static int get_state(u32 *out, u8 instance)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) u32 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) union acpi_object *obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) if (!out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (instance > 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) status = wmi_query_block(GUID, instance, &result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (ACPI_FAILURE(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) obj = (union acpi_object *) result.pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (obj && obj->type == ACPI_TYPE_INTEGER) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) tmp = obj->integer.value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) tmp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (result.length > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) kfree(result.pointer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) switch (instance) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) case TC1100_INSTANCE_WIRELESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) *out = (tmp == 3) ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) case TC1100_INSTANCE_JOGDIAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) *out = (tmp == 1) ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) static int set_state(u32 *in, u8 instance)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) u32 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct acpi_buffer input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (!in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (instance > 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) switch (instance) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) case TC1100_INSTANCE_WIRELESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) value = (*in) ? 1 : 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) case TC1100_INSTANCE_JOGDIAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) value = (*in) ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) input.length = sizeof(u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) input.pointer = &value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) status = wmi_set_block(GUID, instance, &input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) if (ACPI_FAILURE(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) /* --------------------------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) FS Interface (/sys)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) -------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * Read/ write bool sysfs macro
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #define show_set_bool(value, instance) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static ssize_t \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) show_bool_##value(struct device *dev, struct device_attribute *attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) char *buf) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u32 result; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) acpi_status status = get_state(&result, instance); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (ACPI_SUCCESS(status)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return sprintf(buf, "%d\n", result); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return sprintf(buf, "Read error\n"); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) static ssize_t \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) set_bool_##value(struct device *dev, struct device_attribute *attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) const char *buf, size_t count) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) u32 tmp = simple_strtoul(buf, NULL, 10); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) acpi_status status = set_state(&tmp, instance); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (ACPI_FAILURE(status)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return -EINVAL; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return count; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static DEVICE_ATTR(value, S_IRUGO | S_IWUSR, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) show_bool_##value, set_bool_##value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) show_set_bool(wireless, TC1100_INSTANCE_WIRELESS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) show_set_bool(jogdial, TC1100_INSTANCE_JOGDIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) static struct attribute *tc1100_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) &dev_attr_wireless.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) &dev_attr_jogdial.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static struct attribute_group tc1100_attribute_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .attrs = tc1100_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* --------------------------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) Driver Model
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) -------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static int __init tc1100_probe(struct platform_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) return sysfs_create_group(&device->dev.kobj, &tc1100_attribute_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static int tc1100_remove(struct platform_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) sysfs_remove_group(&device->dev.kobj, &tc1100_attribute_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static int tc1100_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) ret = get_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) ret = get_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static int tc1100_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) ret = set_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ret = set_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) static const struct dev_pm_ops tc1100_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) .suspend = tc1100_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) .resume = tc1100_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) .freeze = tc1100_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) .restore = tc1100_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) static struct platform_driver tc1100_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) .name = "tc1100-wmi",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) .pm = &tc1100_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) .remove = tc1100_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static int __init tc1100_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (!wmi_has_guid(GUID))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) tc1100_device = platform_device_alloc("tc1100-wmi", -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (!tc1100_device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) error = platform_device_add(tc1100_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) goto err_device_put;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) error = platform_driver_probe(&tc1100_driver, tc1100_probe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) goto err_device_del;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) pr_info("HP Compaq TC1100 Tablet WMI Extras loaded\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) err_device_del:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) platform_device_del(tc1100_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) err_device_put:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) platform_device_put(tc1100_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) static void __exit tc1100_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) platform_device_unregister(tc1100_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) platform_driver_unregister(&tc1100_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) module_init(tc1100_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) module_exit(tc1100_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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