Rev 1301 | Rev 1324 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 1301 | Rev 1302 | ||
|---|---|---|---|
| 1 | /* |
1 | /* |
| 2 | * The PCI Library -- Generic Direct Access Functions |
2 | * The PCI Library -- Generic Direct Access Functions |
| 3 | * |
3 | * |
| 4 | * Copyright (c) 1997--2000 Martin Mares <mj@ucw.cz> |
4 | * Copyright (c) 1997--2000 Martin Mares <mj@ucw.cz> |
| 5 | * |
5 | * |
| 6 | * Modified and ported to HelenOS by Jakub Jermar. |
6 | * Modified and ported to HelenOS by Jakub Jermar. |
| 7 | * |
7 | * |
| 8 | * Can be freely distributed and used under the terms of the GNU GPL. |
8 | * Can be freely distributed and used under the terms of the GNU GPL. |
| 9 | */ |
9 | */ |
| 10 | 10 | ||
| 11 | #include <string.h> |
11 | #include <string.h> |
| 12 | 12 | ||
| 13 | #include "internal.h" |
13 | #include "internal.h" |
| 14 | 14 | ||
| 15 | void |
- | |
| 16 | pci_generic_scan_bus(struct pci_access *a, byte *busmap, int bus) |
15 | void pci_generic_scan_bus(struct pci_access *a, byte * busmap, int bus) |
| 17 | { |
16 | { |
| 18 | int dev, multi, ht; |
17 | int dev, multi, ht; |
| 19 | struct pci_dev *t; |
18 | struct pci_dev *t; |
| 20 | 19 | ||
| 21 | a->debug("Scanning bus %02x for devices...\n", bus); |
20 | a->debug("Scanning bus %02x for devices...\n", bus); |
| 22 | if (busmap[bus]) |
21 | if (busmap[bus]) { |
| 23 | { |
22 | a->warning("Bus %02x seen twice (firmware bug). Ignored.", |
| 24 | a->warning("Bus %02x seen twice (firmware bug). Ignored.", bus); |
23 | bus); |
| 25 | return; |
24 | return; |
| 26 | } |
25 | } |
| 27 | busmap[bus] = 1; |
26 | busmap[bus] = 1; |
| 28 | t = pci_alloc_dev(a); |
27 | t = pci_alloc_dev(a); |
| 29 | t->bus = bus; |
28 | t->bus = bus; |
| 30 | for(dev=0; dev<32; dev++) |
29 | for (dev = 0; dev < 32; dev++) { |
| 31 | { |
30 | t->dev = dev; |
| 32 | t->dev = dev; |
31 | multi = 0; |
| 33 | multi = 0; |
32 | for (t->func = 0; !t->func || multi && t->func < 8; |
| 34 | for(t->func=0; !t->func || multi && t->func<8; t->func++) |
33 | t->func++) { |
| 35 | { |
34 | u32 vd = pci_read_long(t, PCI_VENDOR_ID); |
| 36 | u32 vd = pci_read_long(t, PCI_VENDOR_ID); |
35 | struct pci_dev *d; |
| 37 | struct pci_dev *d; |
36 | |
| 38 | 37 | if (!vd || vd == 0xffffffff) |
|
| 39 | if (!vd || vd == 0xffffffff) |
38 | continue; |
| 40 | continue; |
39 | ht = pci_read_byte(t, PCI_HEADER_TYPE); |
| 41 | ht = pci_read_byte(t, PCI_HEADER_TYPE); |
40 | if (!t->func) |
| 42 | if (!t->func) |
41 | multi = ht & 0x80; |
| 43 | multi = ht & 0x80; |
42 | ht &= 0x7f; |
| 44 | ht &= 0x7f; |
43 | d = pci_alloc_dev(a); |
| 45 | d = pci_alloc_dev(a); |
44 | d->bus = t->bus; |
| 46 | d->bus = t->bus; |
45 | d->dev = t->dev; |
| 47 | d->dev = t->dev; |
46 | d->func = t->func; |
| 48 | d->func = t->func; |
47 | d->vendor_id = vd & 0xffff; |
| 49 | d->vendor_id = vd & 0xffff; |
48 | d->device_id = vd >> 16U; |
| 50 | d->device_id = vd >> 16U; |
49 | d->known_fields = PCI_FILL_IDENT; |
| 51 | d->known_fields = PCI_FILL_IDENT; |
50 | d->hdrtype = ht; |
| 52 | d->hdrtype = ht; |
51 | pci_link_dev(a, d); |
| 53 | pci_link_dev(a, d); |
52 | switch (ht) { |
| 54 | switch (ht) |
53 | case PCI_HEADER_TYPE_NORMAL: |
| 55 | { |
54 | break; |
| 56 | case PCI_HEADER_TYPE_NORMAL: |
55 | case PCI_HEADER_TYPE_BRIDGE: |
| 57 | break; |
56 | case PCI_HEADER_TYPE_CARDBUS: |
| 58 | case PCI_HEADER_TYPE_BRIDGE: |
57 | pci_generic_scan_bus(a, busmap, |
| 59 | case PCI_HEADER_TYPE_CARDBUS: |
58 | pci_read_byte(t, |
| 60 | pci_generic_scan_bus(a, busmap, pci_read_byte(t, PCI_SECONDARY_BUS)); |
59 | PCI_SECONDARY_BUS)); |
| 61 | break; |
60 | break; |
| 62 | default: |
61 | default: |
| 63 | a->debug("Device %04x:%02x:%02x.%d has unknown header type %02x.\n", d->domain, d->bus, d->dev, d->func, ht); |
62 | a->debug |
| 64 | } |
63 | ("Device %04x:%02x:%02x.%d has unknown header type %02x.\n", |
| 65 | } |
64 | d->domain, d->bus, d->dev, d->func, |
| 66 | } |
65 | ht); |
| 67 | pci_free_dev(t); |
66 | } |
| 68 | } |
67 | } |
| 69 | 68 | } |
|
| 70 | void |
69 | pci_free_dev(t); |
| 71 | pci_generic_scan(struct pci_access *a) |
70 | } |
| 72 | { |
71 | |
| 73 | byte busmap[256]; |
72 | void pci_generic_scan(struct pci_access *a) |
| 74 | 73 | { |
|
| 75 | bzero(busmap, sizeof(busmap)); |
74 | byte busmap[256]; |
| 76 | pci_generic_scan_bus(a, busmap, 0); |
75 | |
| 77 | } |
76 | bzero(busmap, sizeof(busmap)); |
| 78 | 77 | pci_generic_scan_bus(a, busmap, 0); |
|
| 79 | int |
78 | } |
| 80 | pci_generic_fill_info(struct pci_dev *d, int flags) |
79 | |
| 81 | { |
80 | int pci_generic_fill_info(struct pci_dev *d, int flags) |
| 82 | struct pci_access *a = d->access; |
81 | { |
| 83 | 82 | struct pci_access *a = d->access; |
|
| 84 | if ((flags & (PCI_FILL_BASES | PCI_FILL_ROM_BASE)) && d->hdrtype < 0) |
83 | |
| 85 | d->hdrtype = pci_read_byte(d, PCI_HEADER_TYPE) & 0x7f; |
84 | if ((flags & (PCI_FILL_BASES | PCI_FILL_ROM_BASE)) |
| 86 | if (flags & PCI_FILL_IDENT) |
85 | && d->hdrtype < 0) |
| 87 | { |
86 | d->hdrtype = pci_read_byte(d, PCI_HEADER_TYPE) & 0x7f; |
| 88 | d->vendor_id = pci_read_word(d, PCI_VENDOR_ID); |
87 | if (flags & PCI_FILL_IDENT) { |
| 89 | d->device_id = pci_read_word(d, PCI_DEVICE_ID); |
88 | d->vendor_id = pci_read_word(d, PCI_VENDOR_ID); |
| 90 | } |
89 | d->device_id = pci_read_word(d, PCI_DEVICE_ID); |
| 91 | if (flags & PCI_FILL_IRQ) |
90 | } |
| 92 | d->irq = pci_read_byte(d, PCI_INTERRUPT_LINE); |
91 | if (flags & PCI_FILL_IRQ) |
| 93 | if (flags & PCI_FILL_BASES) |
92 | d->irq = pci_read_byte(d, PCI_INTERRUPT_LINE); |
| 94 | { |
93 | if (flags & PCI_FILL_BASES) { |
| 95 | int cnt = 0, i; |
94 | int cnt = 0, i; |
| 96 | bzero(d->base_addr, sizeof(d->base_addr)); |
95 | bzero(d->base_addr, sizeof(d->base_addr)); |
| 97 | switch (d->hdrtype) |
96 | switch (d->hdrtype) { |
| 98 | { |
97 | case PCI_HEADER_TYPE_NORMAL: |
| 99 | case PCI_HEADER_TYPE_NORMAL: |
98 | cnt = 6; |
| 100 | cnt = 6; |
99 | break; |
| 101 | break; |
100 | case PCI_HEADER_TYPE_BRIDGE: |
| 102 | case PCI_HEADER_TYPE_BRIDGE: |
101 | cnt = 2; |
| 103 | cnt = 2; |
102 | break; |
| 104 | break; |
103 | case PCI_HEADER_TYPE_CARDBUS: |
| 105 | case PCI_HEADER_TYPE_CARDBUS: |
104 | cnt = 1; |
| 106 | cnt = 1; |
105 | break; |
| 107 | break; |
106 | } |
| 108 | } |
107 | if (cnt) { |
| 109 | if (cnt) |
108 | for (i = 0; i < cnt; i++) { |
| 110 | { |
109 | u32 x = |
| 111 | for(i=0; i<cnt; i++) |
110 | pci_read_long(d, |
| 112 | { |
111 | PCI_BASE_ADDRESS_0 + |
| 113 | u32 x = pci_read_long(d, PCI_BASE_ADDRESS_0 + i*4); |
112 | i * 4); |
| 114 | if (!x || x == (u32) ~0) |
113 | if (!x || x == (u32) ~ 0) |
| 115 | continue; |
114 | continue; |
| 116 | if ((x & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_IO) |
115 | if ((x & PCI_BASE_ADDRESS_SPACE) == |
| 117 | d->base_addr[i] = x; |
116 | PCI_BASE_ADDRESS_SPACE_IO) |
| 118 | else |
117 | d->base_addr[i] = x; |
| 119 | { |
118 | else { |
| 120 | if ((x & PCI_BASE_ADDRESS_MEM_TYPE_MASK) != PCI_BASE_ADDRESS_MEM_TYPE_64) |
119 | if ((x & |
| 121 | d->base_addr[i] = x; |
120 | PCI_BASE_ADDRESS_MEM_TYPE_MASK) |
| 122 | else if (i >= cnt-1) |
121 | != |
| 123 | a->warning("%04x:%02x:%02x.%d: Invalid 64-bit address seen for BAR %d.", d->domain, d->bus, d->dev, d->func, i); |
122 | PCI_BASE_ADDRESS_MEM_TYPE_64) |
| 124 | else |
123 | d->base_addr[i] = x; |
| 125 | { |
124 | else if (i >= cnt - 1) |
| 126 | u32 y = pci_read_long(d, PCI_BASE_ADDRESS_0 + (++i)*4); |
125 | a->warning |
| - | 126 | ("%04x:%02x:%02x.%d: Invalid 64-bit address seen for BAR %d.", |
|
| - | 127 | d->domain, d->bus, |
|
| - | 128 | d->dev, d->func, i); |
|
| - | 129 | else { |
|
| - | 130 | u32 y = |
|
| - | 131 | pci_read_long(d, |
|
| - | 132 | PCI_BASE_ADDRESS_0 |
|
| - | 133 | + |
|
| - | 134 | (++i) * |
|
| - | 135 | 4); |
|
| 127 | #ifdef PCI_HAVE_64BIT_ADDRESS |
136 | #ifdef PCI_HAVE_64BIT_ADDRESS |
| - | 137 | d->base_addr[i - 1] = |
|
| 128 | d->base_addr[i-1] = x | (((pciaddr_t) y) << 32); |
138 | x | (((pciaddr_t) y) << |
| - | 139 | 32); |
|
| 129 | #else |
140 | #else |
| 130 | if (y) |
141 | if (y) |
| - | 142 | a->warning |
|
| 131 | a->warning("%04x:%02x:%02x.%d 64-bit device address ignored.", d->domain, d->bus, d->dev, d->func); |
143 | ("%04x:%02x:%02x.%d 64-bit device address ignored.", |
| - | 144 | d->domain, |
|
| - | 145 | d->bus, |
|
| - | 146 | d->dev, |
|
| - | 147 | d->func); |
|
| 132 | else |
148 | else |
| 133 | d->base_addr[i-1] = x; |
149 | d->base_addr[i - |
| - | 150 | 1] = |
|
| - | 151 | x; |
|
| 134 | #endif |
152 | #endif |
| 135 | } |
153 | } |
| - | 154 | } |
|
| - | 155 | } |
|
| 136 | } |
156 | } |
| 137 | } |
- | |
| 138 | } |
157 | } |
| 139 | } |
- | |
| 140 | if (flags & PCI_FILL_ROM_BASE) |
158 | if (flags & PCI_FILL_ROM_BASE) { |
| 141 | { |
- | |
| 142 | int reg = 0; |
159 | int reg = 0; |
| 143 | d->rom_base_addr = 0; |
160 | d->rom_base_addr = 0; |
| 144 | switch (d->hdrtype) |
161 | switch (d->hdrtype) { |
| 145 | { |
- | |
| 146 | case PCI_HEADER_TYPE_NORMAL: |
162 | case PCI_HEADER_TYPE_NORMAL: |
| 147 | reg = PCI_ROM_ADDRESS; |
163 | reg = PCI_ROM_ADDRESS; |
| 148 | break; |
164 | break; |
| 149 | case PCI_HEADER_TYPE_BRIDGE: |
165 | case PCI_HEADER_TYPE_BRIDGE: |
| 150 | reg = PCI_ROM_ADDRESS1; |
166 | reg = PCI_ROM_ADDRESS1; |
| 151 | break; |
167 | break; |
| 152 | } |
168 | } |
| 153 | if (reg) |
169 | if (reg) { |
| 154 | { |
- | |
| 155 | u32 u = pci_read_long(d, reg); |
170 | u32 u = pci_read_long(d, reg); |
| 156 | if (u != 0xffffffff) |
171 | if (u != 0xffffffff) |
| 157 | d->rom_base_addr = u; |
172 | d->rom_base_addr = u; |
| - | 173 | } |
|
| 158 | } |
174 | } |
| 159 | } |
- | |
| 160 | return flags & ~PCI_FILL_SIZES; |
175 | return flags & ~PCI_FILL_SIZES; |
| 161 | } |
176 | } |
| 162 | 177 | ||
| 163 | static int |
178 | static int |
| 164 | pci_generic_block_op(struct pci_dev *d, int pos, byte *buf, int len, |
179 | pci_generic_block_op(struct pci_dev *d, int pos, byte * buf, int len, |
| 165 | int (*r)(struct pci_dev *d, int pos, byte *buf, int len)) |
180 | int (*r) (struct pci_dev * d, int pos, byte * buf, |
| - | 181 | int len)) |
|
| 166 | { |
182 | { |
| 167 | if ((pos & 1) && len >= 1) |
183 | if ((pos & 1) && len >= 1) { |
| 168 | { |
- | |
| 169 | if (!r(d, pos, buf, 1)) |
184 | if (!r(d, pos, buf, 1)) |
| 170 | return 0; |
185 | return 0; |
| - | 186 | pos++; |
|
| - | 187 | buf++; |
|
| 171 | pos++; buf++; len--; |
188 | len--; |
| 172 | } |
189 | } |
| 173 | if ((pos & 3) && len >= 2) |
190 | if ((pos & 3) && len >= 2) { |
| 174 | { |
- | |
| 175 | if (!r(d, pos, buf, 2)) |
191 | if (!r(d, pos, buf, 2)) |
| 176 | return 0; |
192 | return 0; |
| - | 193 | pos += 2; |
|
| - | 194 | buf += 2; |
|
| 177 | pos += 2; buf += 2; len -= 2; |
195 | len -= 2; |
| 178 | } |
196 | } |
| 179 | while (len >= 4) |
197 | while (len >= 4) { |
| 180 | { |
- | |
| 181 | if (!r(d, pos, buf, 4)) |
198 | if (!r(d, pos, buf, 4)) |
| 182 | return 0; |
199 | return 0; |
| 183 | pos += 4; buf += 4; len -= 4; |
200 | pos += 4; |
| 184 | } |
201 | buf += 4; |
| 185 | if (len >= 2) |
202 | len -= 4; |
| - | 203 | } |
|
| 186 | { |
204 | if (len >= 2) { |
| 187 | if (!r(d, pos, buf, 2)) |
205 | if (!r(d, pos, buf, 2)) |
| 188 | return 0; |
206 | return 0; |
| - | 207 | pos += 2; |
|
| - | 208 | buf += 2; |
|
| 189 | pos += 2; buf += 2; len -= 2; |
209 | len -= 2; |
| 190 | } |
210 | } |
| 191 | if (len && !r(d, pos, buf, 1)) |
211 | if (len && !r(d, pos, buf, 1)) |
| 192 | return 0; |
212 | return 0; |
| 193 | return 1; |
213 | return 1; |
| 194 | } |
214 | } |
| 195 | 215 | ||
| 196 | int |
- | |
| 197 | pci_generic_block_read(struct pci_dev *d, int pos, byte *buf, int len) |
216 | int pci_generic_block_read(struct pci_dev *d, int pos, byte * buf, int len) |
| 198 | { |
217 | { |
| 199 | return pci_generic_block_op(d, pos, buf, len, d->access->methods->read); |
218 | return pci_generic_block_op(d, pos, buf, len, |
| - | 219 | d->access->methods->read); |
|
| 200 | } |
220 | } |
| 201 | 221 | ||
| 202 | int |
- | |
| 203 | pci_generic_block_write(struct pci_dev *d, int pos, byte *buf, int len) |
222 | int pci_generic_block_write(struct pci_dev *d, int pos, byte * buf, int len) |
| 204 | { |
223 | { |
| 205 | return pci_generic_block_op(d, pos, buf, len, d->access->methods->write); |
224 | return pci_generic_block_op(d, pos, buf, len, |
| - | 225 | d->access->methods->write); |
|
| 206 | } |
226 | } |
| 207 | 227 | ||