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28#ifndef _PCI_HOTPLUG_H
29#define _PCI_HOTPLUG_H
30
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32
33enum pci_bus_speed {
34 PCI_SPEED_33MHz = 0x00,
35 PCI_SPEED_66MHz = 0x01,
36 PCI_SPEED_66MHz_PCIX = 0x02,
37 PCI_SPEED_100MHz_PCIX = 0x03,
38 PCI_SPEED_133MHz_PCIX = 0x04,
39 PCI_SPEED_66MHz_PCIX_ECC = 0x05,
40 PCI_SPEED_100MHz_PCIX_ECC = 0x06,
41 PCI_SPEED_133MHz_PCIX_ECC = 0x07,
42 PCI_SPEED_66MHz_PCIX_266 = 0x09,
43 PCI_SPEED_100MHz_PCIX_266 = 0x0a,
44 PCI_SPEED_133MHz_PCIX_266 = 0x0b,
45 PCI_SPEED_66MHz_PCIX_533 = 0x11,
46 PCI_SPEED_100MHz_PCIX_533 = 0x12,
47 PCI_SPEED_133MHz_PCIX_533 = 0x13,
48 PCI_SPEED_UNKNOWN = 0xff,
49};
50
51
52enum pcie_link_width {
53 PCIE_LNK_WIDTH_RESRV = 0x00,
54 PCIE_LNK_X1 = 0x01,
55 PCIE_LNK_X2 = 0x02,
56 PCIE_LNK_X4 = 0x04,
57 PCIE_LNK_X8 = 0x08,
58 PCIE_LNK_X12 = 0x0C,
59 PCIE_LNK_X16 = 0x10,
60 PCIE_LNK_X32 = 0x20,
61 PCIE_LNK_WIDTH_UNKNOWN = 0xFF,
62};
63
64enum pcie_link_speed {
65 PCIE_2PT5GB = 0x14,
66 PCIE_LNK_SPEED_UNKNOWN = 0xFF,
67};
68
69struct hotplug_slot;
70struct hotplug_slot_attribute {
71 struct attribute attr;
72 ssize_t (*show)(struct hotplug_slot *, char *);
73 ssize_t (*store)(struct hotplug_slot *, const char *, size_t);
74};
75#define to_hotplug_attr(n) container_of(n, struct hotplug_slot_attribute, attr);
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110struct hotplug_slot_ops {
111 struct module *owner;
112 int (*enable_slot) (struct hotplug_slot *slot);
113 int (*disable_slot) (struct hotplug_slot *slot);
114 int (*set_attention_status) (struct hotplug_slot *slot, u8 value);
115 int (*hardware_test) (struct hotplug_slot *slot, u32 value);
116 int (*get_power_status) (struct hotplug_slot *slot, u8 *value);
117 int (*get_attention_status) (struct hotplug_slot *slot, u8 *value);
118 int (*get_latch_status) (struct hotplug_slot *slot, u8 *value);
119 int (*get_adapter_status) (struct hotplug_slot *slot, u8 *value);
120 int (*get_max_bus_speed) (struct hotplug_slot *slot, enum pci_bus_speed *value);
121 int (*get_cur_bus_speed) (struct hotplug_slot *slot, enum pci_bus_speed *value);
122};
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133
134struct hotplug_slot_info {
135 u8 power_status;
136 u8 attention_status;
137 u8 latch_status;
138 u8 adapter_status;
139 enum pci_bus_speed max_bus_speed;
140 enum pci_bus_speed cur_bus_speed;
141};
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152
153struct hotplug_slot {
154 struct hotplug_slot_ops *ops;
155 struct hotplug_slot_info *info;
156 void (*release) (struct hotplug_slot *slot);
157 void *private;
158
159
160 struct list_head slot_list;
161 struct pci_slot *pci_slot;
162};
163#define to_hotplug_slot(n) container_of(n, struct hotplug_slot, kobj)
164
165static inline const char *hotplug_slot_name(const struct hotplug_slot *slot)
166{
167 return pci_slot_name(slot->pci_slot);
168}
169
170extern int pci_hp_register(struct hotplug_slot *, struct pci_bus *, int nr,
171 const char *name);
172extern int pci_hp_deregister(struct hotplug_slot *slot);
173extern int __must_check pci_hp_change_slot_info (struct hotplug_slot *slot,
174 struct hotplug_slot_info *info);
175
176
177struct hpp_type0 {
178 u32 revision;
179 u8 cache_line_size;
180 u8 latency_timer;
181 u8 enable_serr;
182 u8 enable_perr;
183};
184
185
186struct hpp_type1 {
187 u32 revision;
188 u8 max_mem_read;
189 u8 avg_max_split;
190 u16 tot_max_split;
191};
192
193
194struct hpp_type2 {
195 u32 revision;
196 u32 unc_err_mask_and;
197 u32 unc_err_mask_or;
198 u32 unc_err_sever_and;
199 u32 unc_err_sever_or;
200 u32 cor_err_mask_and;
201 u32 cor_err_mask_or;
202 u32 adv_err_cap_and;
203 u32 adv_err_cap_or;
204 u16 pci_exp_devctl_and;
205 u16 pci_exp_devctl_or;
206 u16 pci_exp_lnkctl_and;
207 u16 pci_exp_lnkctl_or;
208 u32 sec_unc_err_sever_and;
209 u32 sec_unc_err_sever_or;
210 u32 sec_unc_err_mask_and;
211 u32 sec_unc_err_mask_or;
212};
213
214struct hotplug_params {
215 struct hpp_type0 *t0;
216 struct hpp_type1 *t1;
217 struct hpp_type2 *t2;
218 struct hpp_type0 type0_data;
219 struct hpp_type1 type1_data;
220 struct hpp_type2 type2_data;
221};
222
223#ifdef CONFIG_ACPI
224#include <acpi/acpi.h>
225#include <acpi/acpi_bus.h>
226extern acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
227 struct hotplug_params *hpp);
228int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags);
229int acpi_root_bridge(acpi_handle handle);
230int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle);
231int acpi_pci_detect_ejectable(struct pci_bus *pbus);
232#endif
233#endif
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