Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1 | /* |
| 2 | Copyright (C) 2004 - 2009 rt2x00 SourceForge Project |
| 3 | <http://rt2x00.serialmonkey.com> |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the |
| 17 | Free Software Foundation, Inc., |
| 18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 | */ |
| 20 | |
| 21 | /* |
| 22 | Module: rt2800pci |
| 23 | Abstract: rt2800pci device specific routines. |
| 24 | Supported chipsets: RT2800E & RT2800ED. |
| 25 | */ |
| 26 | |
| 27 | #include <linux/crc-ccitt.h> |
| 28 | #include <linux/delay.h> |
| 29 | #include <linux/etherdevice.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/kernel.h> |
| 32 | #include <linux/module.h> |
| 33 | #include <linux/pci.h> |
| 34 | #include <linux/platform_device.h> |
| 35 | #include <linux/eeprom_93cx6.h> |
| 36 | |
| 37 | #include "rt2x00.h" |
| 38 | #include "rt2x00pci.h" |
| 39 | #include "rt2x00soc.h" |
Bartlomiej Zolnierkiewicz | 7ef5cc9 | 2009-11-04 18:35:32 +0100 | [diff] [blame] | 40 | #include "rt2800lib.h" |
Bartlomiej Zolnierkiewicz | b54f78a | 2009-11-04 18:35:54 +0100 | [diff] [blame] | 41 | #include "rt2800.h" |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 42 | #include "rt2800pci.h" |
| 43 | |
| 44 | #ifdef CONFIG_RT2800PCI_PCI_MODULE |
| 45 | #define CONFIG_RT2800PCI_PCI |
| 46 | #endif |
| 47 | |
| 48 | #ifdef CONFIG_RT2800PCI_WISOC_MODULE |
| 49 | #define CONFIG_RT2800PCI_WISOC |
| 50 | #endif |
| 51 | |
| 52 | /* |
| 53 | * Allow hardware encryption to be disabled. |
| 54 | */ |
| 55 | static int modparam_nohwcrypt = 1; |
| 56 | module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO); |
| 57 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); |
| 58 | |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 59 | static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token) |
| 60 | { |
| 61 | unsigned int i; |
| 62 | u32 reg; |
| 63 | |
| 64 | for (i = 0; i < 200; i++) { |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 65 | rt2800_register_read(rt2x00dev, H2M_MAILBOX_CID, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 66 | |
| 67 | if ((rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD0) == token) || |
| 68 | (rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD1) == token) || |
| 69 | (rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD2) == token) || |
| 70 | (rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD3) == token)) |
| 71 | break; |
| 72 | |
| 73 | udelay(REGISTER_BUSY_DELAY); |
| 74 | } |
| 75 | |
| 76 | if (i == 200) |
| 77 | ERROR(rt2x00dev, "MCU request failed, no response from hardware\n"); |
| 78 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 79 | rt2800_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0); |
| 80 | rt2800_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | #ifdef CONFIG_RT2800PCI_WISOC |
| 84 | static void rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev) |
| 85 | { |
| 86 | u32 *base_addr = (u32 *) KSEG1ADDR(0x1F040000); /* XXX for RT3052 */ |
| 87 | |
| 88 | memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE); |
| 89 | } |
| 90 | #else |
| 91 | static inline void rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev) |
| 92 | { |
| 93 | } |
| 94 | #endif /* CONFIG_RT2800PCI_WISOC */ |
| 95 | |
| 96 | #ifdef CONFIG_RT2800PCI_PCI |
| 97 | static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom) |
| 98 | { |
| 99 | struct rt2x00_dev *rt2x00dev = eeprom->data; |
| 100 | u32 reg; |
| 101 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 102 | rt2800_register_read(rt2x00dev, E2PROM_CSR, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 103 | |
| 104 | eeprom->reg_data_in = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_IN); |
| 105 | eeprom->reg_data_out = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_OUT); |
| 106 | eeprom->reg_data_clock = |
| 107 | !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_CLOCK); |
| 108 | eeprom->reg_chip_select = |
| 109 | !!rt2x00_get_field32(reg, E2PROM_CSR_CHIP_SELECT); |
| 110 | } |
| 111 | |
| 112 | static void rt2800pci_eepromregister_write(struct eeprom_93cx6 *eeprom) |
| 113 | { |
| 114 | struct rt2x00_dev *rt2x00dev = eeprom->data; |
| 115 | u32 reg = 0; |
| 116 | |
| 117 | rt2x00_set_field32(®, E2PROM_CSR_DATA_IN, !!eeprom->reg_data_in); |
| 118 | rt2x00_set_field32(®, E2PROM_CSR_DATA_OUT, !!eeprom->reg_data_out); |
| 119 | rt2x00_set_field32(®, E2PROM_CSR_DATA_CLOCK, |
| 120 | !!eeprom->reg_data_clock); |
| 121 | rt2x00_set_field32(®, E2PROM_CSR_CHIP_SELECT, |
| 122 | !!eeprom->reg_chip_select); |
| 123 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 124 | rt2800_register_write(rt2x00dev, E2PROM_CSR, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | static void rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev) |
| 128 | { |
| 129 | struct eeprom_93cx6 eeprom; |
| 130 | u32 reg; |
| 131 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 132 | rt2800_register_read(rt2x00dev, E2PROM_CSR, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 133 | |
| 134 | eeprom.data = rt2x00dev; |
| 135 | eeprom.register_read = rt2800pci_eepromregister_read; |
| 136 | eeprom.register_write = rt2800pci_eepromregister_write; |
| 137 | eeprom.width = !rt2x00_get_field32(reg, E2PROM_CSR_TYPE) ? |
| 138 | PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66; |
| 139 | eeprom.reg_data_in = 0; |
| 140 | eeprom.reg_data_out = 0; |
| 141 | eeprom.reg_data_clock = 0; |
| 142 | eeprom.reg_chip_select = 0; |
| 143 | |
| 144 | eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom, |
| 145 | EEPROM_SIZE / sizeof(u16)); |
| 146 | } |
| 147 | |
Gertjan van Wingerde | a659868 | 2009-11-08 12:30:35 +0100 | [diff] [blame] | 148 | static int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev) |
| 149 | { |
Bartlomiej Zolnierkiewicz | 30e8403 | 2009-11-08 14:39:48 +0100 | [diff] [blame] | 150 | return rt2800_efuse_detect(rt2x00dev); |
Gertjan van Wingerde | a659868 | 2009-11-08 12:30:35 +0100 | [diff] [blame] | 151 | } |
| 152 | |
Bartlomiej Zolnierkiewicz | 30e8403 | 2009-11-08 14:39:48 +0100 | [diff] [blame] | 153 | static inline void rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev) |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 154 | { |
Bartlomiej Zolnierkiewicz | 30e8403 | 2009-11-08 14:39:48 +0100 | [diff] [blame] | 155 | rt2800_read_eeprom_efuse(rt2x00dev); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 156 | } |
| 157 | #else |
| 158 | static inline void rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev) |
| 159 | { |
| 160 | } |
| 161 | |
Gertjan van Wingerde | a659868 | 2009-11-08 12:30:35 +0100 | [diff] [blame] | 162 | static inline int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev) |
| 163 | { |
| 164 | return 0; |
| 165 | } |
| 166 | |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 167 | static inline void rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev) |
| 168 | { |
| 169 | } |
| 170 | #endif /* CONFIG_RT2800PCI_PCI */ |
| 171 | |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 172 | /* |
| 173 | * Firmware functions |
| 174 | */ |
| 175 | static char *rt2800pci_get_firmware_name(struct rt2x00_dev *rt2x00dev) |
| 176 | { |
| 177 | return FIRMWARE_RT2860; |
| 178 | } |
| 179 | |
| 180 | static int rt2800pci_check_firmware(struct rt2x00_dev *rt2x00dev, |
| 181 | const u8 *data, const size_t len) |
| 182 | { |
| 183 | u16 fw_crc; |
| 184 | u16 crc; |
| 185 | |
| 186 | /* |
| 187 | * Only support 8kb firmware files. |
| 188 | */ |
| 189 | if (len != 8192) |
| 190 | return FW_BAD_LENGTH; |
| 191 | |
| 192 | /* |
| 193 | * The last 2 bytes in the firmware array are the crc checksum itself, |
| 194 | * this means that we should never pass those 2 bytes to the crc |
| 195 | * algorithm. |
| 196 | */ |
| 197 | fw_crc = (data[len - 2] << 8 | data[len - 1]); |
| 198 | |
| 199 | /* |
| 200 | * Use the crc ccitt algorithm. |
| 201 | * This will return the same value as the legacy driver which |
| 202 | * used bit ordering reversion on the both the firmware bytes |
| 203 | * before input input as well as on the final output. |
| 204 | * Obviously using crc ccitt directly is much more efficient. |
| 205 | */ |
| 206 | crc = crc_ccitt(~0, data, len - 2); |
| 207 | |
| 208 | /* |
| 209 | * There is a small difference between the crc-itu-t + bitrev and |
| 210 | * the crc-ccitt crc calculation. In the latter method the 2 bytes |
| 211 | * will be swapped, use swab16 to convert the crc to the correct |
| 212 | * value. |
| 213 | */ |
| 214 | crc = swab16(crc); |
| 215 | |
| 216 | return (fw_crc == crc) ? FW_OK : FW_BAD_CRC; |
| 217 | } |
| 218 | |
| 219 | static int rt2800pci_load_firmware(struct rt2x00_dev *rt2x00dev, |
| 220 | const u8 *data, const size_t len) |
| 221 | { |
| 222 | unsigned int i; |
| 223 | u32 reg; |
| 224 | |
| 225 | /* |
| 226 | * Wait for stable hardware. |
| 227 | */ |
| 228 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 229 | rt2800_register_read(rt2x00dev, MAC_CSR0, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 230 | if (reg && reg != ~0) |
| 231 | break; |
| 232 | msleep(1); |
| 233 | } |
| 234 | |
| 235 | if (i == REGISTER_BUSY_COUNT) { |
| 236 | ERROR(rt2x00dev, "Unstable hardware.\n"); |
| 237 | return -EBUSY; |
| 238 | } |
| 239 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 240 | rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002); |
| 241 | rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 242 | |
| 243 | /* |
| 244 | * Disable DMA, will be reenabled later when enabling |
| 245 | * the radio. |
| 246 | */ |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 247 | rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 248 | rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0); |
| 249 | rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_DMA_BUSY, 0); |
| 250 | rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0); |
| 251 | rt2x00_set_field32(®, WPDMA_GLO_CFG_RX_DMA_BUSY, 0); |
| 252 | rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 253 | rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 254 | |
| 255 | /* |
| 256 | * enable Host program ram write selection |
| 257 | */ |
| 258 | reg = 0; |
| 259 | rt2x00_set_field32(®, PBF_SYS_CTRL_HOST_RAM_WRITE, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 260 | rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 261 | |
| 262 | /* |
| 263 | * Write firmware to device. |
| 264 | */ |
Bartlomiej Zolnierkiewicz | 4f2732c | 2009-11-04 18:33:27 +0100 | [diff] [blame] | 265 | rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 266 | data, len); |
| 267 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 268 | rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000); |
| 269 | rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 270 | |
| 271 | /* |
| 272 | * Wait for device to stabilize. |
| 273 | */ |
| 274 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 275 | rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 276 | if (rt2x00_get_field32(reg, PBF_SYS_CTRL_READY)) |
| 277 | break; |
| 278 | msleep(1); |
| 279 | } |
| 280 | |
| 281 | if (i == REGISTER_BUSY_COUNT) { |
| 282 | ERROR(rt2x00dev, "PBF system register not ready.\n"); |
| 283 | return -EBUSY; |
| 284 | } |
| 285 | |
| 286 | /* |
| 287 | * Disable interrupts |
| 288 | */ |
| 289 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF); |
| 290 | |
| 291 | /* |
| 292 | * Initialize BBP R/W access agent |
| 293 | */ |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 294 | rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0); |
| 295 | rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 296 | |
| 297 | return 0; |
| 298 | } |
| 299 | |
| 300 | /* |
| 301 | * Initialization functions. |
| 302 | */ |
| 303 | static bool rt2800pci_get_entry_state(struct queue_entry *entry) |
| 304 | { |
| 305 | struct queue_entry_priv_pci *entry_priv = entry->priv_data; |
| 306 | u32 word; |
| 307 | |
| 308 | if (entry->queue->qid == QID_RX) { |
| 309 | rt2x00_desc_read(entry_priv->desc, 1, &word); |
| 310 | |
| 311 | return (!rt2x00_get_field32(word, RXD_W1_DMA_DONE)); |
| 312 | } else { |
| 313 | rt2x00_desc_read(entry_priv->desc, 1, &word); |
| 314 | |
| 315 | return (!rt2x00_get_field32(word, TXD_W1_DMA_DONE)); |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | static void rt2800pci_clear_entry(struct queue_entry *entry) |
| 320 | { |
| 321 | struct queue_entry_priv_pci *entry_priv = entry->priv_data; |
| 322 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
| 323 | u32 word; |
| 324 | |
| 325 | if (entry->queue->qid == QID_RX) { |
| 326 | rt2x00_desc_read(entry_priv->desc, 0, &word); |
| 327 | rt2x00_set_field32(&word, RXD_W0_SDP0, skbdesc->skb_dma); |
| 328 | rt2x00_desc_write(entry_priv->desc, 0, word); |
| 329 | |
| 330 | rt2x00_desc_read(entry_priv->desc, 1, &word); |
| 331 | rt2x00_set_field32(&word, RXD_W1_DMA_DONE, 0); |
| 332 | rt2x00_desc_write(entry_priv->desc, 1, word); |
| 333 | } else { |
| 334 | rt2x00_desc_read(entry_priv->desc, 1, &word); |
| 335 | rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 1); |
| 336 | rt2x00_desc_write(entry_priv->desc, 1, word); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev) |
| 341 | { |
| 342 | struct queue_entry_priv_pci *entry_priv; |
| 343 | u32 reg; |
| 344 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 345 | rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 346 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX0, 1); |
| 347 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX1, 1); |
| 348 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX2, 1); |
| 349 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX3, 1); |
| 350 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX4, 1); |
| 351 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX5, 1); |
| 352 | rt2x00_set_field32(®, WPDMA_RST_IDX_DRX_IDX0, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 353 | rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 354 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 355 | rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f); |
| 356 | rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 357 | |
| 358 | /* |
| 359 | * Initialize registers. |
| 360 | */ |
| 361 | entry_priv = rt2x00dev->tx[0].entries[0].priv_data; |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 362 | rt2800_register_write(rt2x00dev, TX_BASE_PTR0, entry_priv->desc_dma); |
| 363 | rt2800_register_write(rt2x00dev, TX_MAX_CNT0, rt2x00dev->tx[0].limit); |
| 364 | rt2800_register_write(rt2x00dev, TX_CTX_IDX0, 0); |
| 365 | rt2800_register_write(rt2x00dev, TX_DTX_IDX0, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 366 | |
| 367 | entry_priv = rt2x00dev->tx[1].entries[0].priv_data; |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 368 | rt2800_register_write(rt2x00dev, TX_BASE_PTR1, entry_priv->desc_dma); |
| 369 | rt2800_register_write(rt2x00dev, TX_MAX_CNT1, rt2x00dev->tx[1].limit); |
| 370 | rt2800_register_write(rt2x00dev, TX_CTX_IDX1, 0); |
| 371 | rt2800_register_write(rt2x00dev, TX_DTX_IDX1, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 372 | |
| 373 | entry_priv = rt2x00dev->tx[2].entries[0].priv_data; |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 374 | rt2800_register_write(rt2x00dev, TX_BASE_PTR2, entry_priv->desc_dma); |
| 375 | rt2800_register_write(rt2x00dev, TX_MAX_CNT2, rt2x00dev->tx[2].limit); |
| 376 | rt2800_register_write(rt2x00dev, TX_CTX_IDX2, 0); |
| 377 | rt2800_register_write(rt2x00dev, TX_DTX_IDX2, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 378 | |
| 379 | entry_priv = rt2x00dev->tx[3].entries[0].priv_data; |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 380 | rt2800_register_write(rt2x00dev, TX_BASE_PTR3, entry_priv->desc_dma); |
| 381 | rt2800_register_write(rt2x00dev, TX_MAX_CNT3, rt2x00dev->tx[3].limit); |
| 382 | rt2800_register_write(rt2x00dev, TX_CTX_IDX3, 0); |
| 383 | rt2800_register_write(rt2x00dev, TX_DTX_IDX3, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 384 | |
| 385 | entry_priv = rt2x00dev->rx->entries[0].priv_data; |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 386 | rt2800_register_write(rt2x00dev, RX_BASE_PTR, entry_priv->desc_dma); |
| 387 | rt2800_register_write(rt2x00dev, RX_MAX_CNT, rt2x00dev->rx[0].limit); |
| 388 | rt2800_register_write(rt2x00dev, RX_CRX_IDX, rt2x00dev->rx[0].limit - 1); |
| 389 | rt2800_register_write(rt2x00dev, RX_DRX_IDX, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 390 | |
| 391 | /* |
| 392 | * Enable global DMA configuration |
| 393 | */ |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 394 | rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 395 | rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0); |
| 396 | rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0); |
| 397 | rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 398 | rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 399 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 400 | rt2800_register_write(rt2x00dev, DELAY_INT_CFG, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 405 | /* |
| 406 | * Device state switch handlers. |
| 407 | */ |
| 408 | static void rt2800pci_toggle_rx(struct rt2x00_dev *rt2x00dev, |
| 409 | enum dev_state state) |
| 410 | { |
| 411 | u32 reg; |
| 412 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 413 | rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 414 | rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, |
| 415 | (state == STATE_RADIO_RX_ON) || |
| 416 | (state == STATE_RADIO_RX_ON_LINK)); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 417 | rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | static void rt2800pci_toggle_irq(struct rt2x00_dev *rt2x00dev, |
| 421 | enum dev_state state) |
| 422 | { |
| 423 | int mask = (state == STATE_RADIO_IRQ_ON); |
| 424 | u32 reg; |
| 425 | |
| 426 | /* |
| 427 | * When interrupts are being enabled, the interrupt registers |
| 428 | * should clear the register to assure a clean state. |
| 429 | */ |
| 430 | if (state == STATE_RADIO_IRQ_ON) { |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 431 | rt2800_register_read(rt2x00dev, INT_SOURCE_CSR, ®); |
| 432 | rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 433 | } |
| 434 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 435 | rt2800_register_read(rt2x00dev, INT_MASK_CSR, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 436 | rt2x00_set_field32(®, INT_MASK_CSR_RXDELAYINT, mask); |
| 437 | rt2x00_set_field32(®, INT_MASK_CSR_TXDELAYINT, mask); |
| 438 | rt2x00_set_field32(®, INT_MASK_CSR_RX_DONE, mask); |
| 439 | rt2x00_set_field32(®, INT_MASK_CSR_AC0_DMA_DONE, mask); |
| 440 | rt2x00_set_field32(®, INT_MASK_CSR_AC1_DMA_DONE, mask); |
| 441 | rt2x00_set_field32(®, INT_MASK_CSR_AC2_DMA_DONE, mask); |
| 442 | rt2x00_set_field32(®, INT_MASK_CSR_AC3_DMA_DONE, mask); |
| 443 | rt2x00_set_field32(®, INT_MASK_CSR_HCCA_DMA_DONE, mask); |
| 444 | rt2x00_set_field32(®, INT_MASK_CSR_MGMT_DMA_DONE, mask); |
| 445 | rt2x00_set_field32(®, INT_MASK_CSR_MCU_COMMAND, mask); |
| 446 | rt2x00_set_field32(®, INT_MASK_CSR_RXTX_COHERENT, mask); |
| 447 | rt2x00_set_field32(®, INT_MASK_CSR_TBTT, mask); |
| 448 | rt2x00_set_field32(®, INT_MASK_CSR_PRE_TBTT, mask); |
| 449 | rt2x00_set_field32(®, INT_MASK_CSR_TX_FIFO_STATUS, mask); |
| 450 | rt2x00_set_field32(®, INT_MASK_CSR_AUTO_WAKEUP, mask); |
| 451 | rt2x00_set_field32(®, INT_MASK_CSR_GPTIMER, mask); |
| 452 | rt2x00_set_field32(®, INT_MASK_CSR_RX_COHERENT, mask); |
| 453 | rt2x00_set_field32(®, INT_MASK_CSR_TX_COHERENT, mask); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 454 | rt2800_register_write(rt2x00dev, INT_MASK_CSR, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | static int rt2800pci_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev) |
| 458 | { |
| 459 | unsigned int i; |
| 460 | u32 reg; |
| 461 | |
| 462 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 463 | rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 464 | if (!rt2x00_get_field32(reg, WPDMA_GLO_CFG_TX_DMA_BUSY) && |
| 465 | !rt2x00_get_field32(reg, WPDMA_GLO_CFG_RX_DMA_BUSY)) |
| 466 | return 0; |
| 467 | |
| 468 | msleep(1); |
| 469 | } |
| 470 | |
| 471 | ERROR(rt2x00dev, "WPDMA TX/RX busy, aborting.\n"); |
| 472 | return -EACCES; |
| 473 | } |
| 474 | |
| 475 | static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev) |
| 476 | { |
| 477 | u32 reg; |
| 478 | u16 word; |
| 479 | |
| 480 | /* |
| 481 | * Initialize all registers. |
| 482 | */ |
| 483 | if (unlikely(rt2800pci_wait_wpdma_ready(rt2x00dev) || |
| 484 | rt2800pci_init_queues(rt2x00dev) || |
Bartlomiej Zolnierkiewicz | fcf5154 | 2009-11-04 18:36:57 +0100 | [diff] [blame] | 485 | rt2800_init_registers(rt2x00dev) || |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 486 | rt2800pci_wait_wpdma_ready(rt2x00dev) || |
Bartlomiej Zolnierkiewicz | fcf5154 | 2009-11-04 18:36:57 +0100 | [diff] [blame] | 487 | rt2800_init_bbp(rt2x00dev) || |
| 488 | rt2800_init_rfcsr(rt2x00dev))) |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 489 | return -EIO; |
| 490 | |
| 491 | /* |
| 492 | * Send signal to firmware during boot time. |
| 493 | */ |
Bartlomiej Zolnierkiewicz | 3a9e5b0 | 2009-11-04 18:34:39 +0100 | [diff] [blame] | 494 | rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0xff, 0, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 495 | |
| 496 | /* |
| 497 | * Enable RX. |
| 498 | */ |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 499 | rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 500 | rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_TX, 1); |
| 501 | rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, 0); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 502 | rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 503 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 504 | rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 505 | rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_TX_DMA, 1); |
| 506 | rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_RX_DMA, 1); |
| 507 | rt2x00_set_field32(®, WPDMA_GLO_CFG_WP_DMA_BURST_SIZE, 2); |
| 508 | rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 509 | rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 510 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 511 | rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 512 | rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_TX, 1); |
| 513 | rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 514 | rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 515 | |
| 516 | /* |
| 517 | * Initialize LED control |
| 518 | */ |
| 519 | rt2x00_eeprom_read(rt2x00dev, EEPROM_LED1, &word); |
Bartlomiej Zolnierkiewicz | 3a9e5b0 | 2009-11-04 18:34:39 +0100 | [diff] [blame] | 520 | rt2800_mcu_request(rt2x00dev, MCU_LED_1, 0xff, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 521 | word & 0xff, (word >> 8) & 0xff); |
| 522 | |
| 523 | rt2x00_eeprom_read(rt2x00dev, EEPROM_LED2, &word); |
Bartlomiej Zolnierkiewicz | 3a9e5b0 | 2009-11-04 18:34:39 +0100 | [diff] [blame] | 524 | rt2800_mcu_request(rt2x00dev, MCU_LED_2, 0xff, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 525 | word & 0xff, (word >> 8) & 0xff); |
| 526 | |
| 527 | rt2x00_eeprom_read(rt2x00dev, EEPROM_LED3, &word); |
Bartlomiej Zolnierkiewicz | 3a9e5b0 | 2009-11-04 18:34:39 +0100 | [diff] [blame] | 528 | rt2800_mcu_request(rt2x00dev, MCU_LED_3, 0xff, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 529 | word & 0xff, (word >> 8) & 0xff); |
| 530 | |
| 531 | return 0; |
| 532 | } |
| 533 | |
| 534 | static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev) |
| 535 | { |
| 536 | u32 reg; |
| 537 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 538 | rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 539 | rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0); |
| 540 | rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_DMA_BUSY, 0); |
| 541 | rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0); |
| 542 | rt2x00_set_field32(®, WPDMA_GLO_CFG_RX_DMA_BUSY, 0); |
| 543 | rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 544 | rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 545 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 546 | rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0); |
| 547 | rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0); |
| 548 | rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 549 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 550 | rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001280); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 551 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 552 | rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 553 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX0, 1); |
| 554 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX1, 1); |
| 555 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX2, 1); |
| 556 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX3, 1); |
| 557 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX4, 1); |
| 558 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX5, 1); |
| 559 | rt2x00_set_field32(®, WPDMA_RST_IDX_DRX_IDX0, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 560 | rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 561 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 562 | rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f); |
| 563 | rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 564 | |
| 565 | /* Wait for DMA, ignore error */ |
| 566 | rt2800pci_wait_wpdma_ready(rt2x00dev); |
| 567 | } |
| 568 | |
| 569 | static int rt2800pci_set_state(struct rt2x00_dev *rt2x00dev, |
| 570 | enum dev_state state) |
| 571 | { |
| 572 | /* |
| 573 | * Always put the device to sleep (even when we intend to wakeup!) |
| 574 | * if the device is booting and wasn't asleep it will return |
| 575 | * failure when attempting to wakeup. |
| 576 | */ |
Bartlomiej Zolnierkiewicz | 3a9e5b0 | 2009-11-04 18:34:39 +0100 | [diff] [blame] | 577 | rt2800_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0, 2); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 578 | |
| 579 | if (state == STATE_AWAKE) { |
Bartlomiej Zolnierkiewicz | 3a9e5b0 | 2009-11-04 18:34:39 +0100 | [diff] [blame] | 580 | rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, TOKEN_WAKUP, 0, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 581 | rt2800pci_mcu_status(rt2x00dev, TOKEN_WAKUP); |
| 582 | } |
| 583 | |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev, |
| 588 | enum dev_state state) |
| 589 | { |
| 590 | int retval = 0; |
| 591 | |
| 592 | switch (state) { |
| 593 | case STATE_RADIO_ON: |
| 594 | /* |
| 595 | * Before the radio can be enabled, the device first has |
| 596 | * to be woken up. After that it needs a bit of time |
| 597 | * to be fully awake and then the radio can be enabled. |
| 598 | */ |
| 599 | rt2800pci_set_state(rt2x00dev, STATE_AWAKE); |
| 600 | msleep(1); |
| 601 | retval = rt2800pci_enable_radio(rt2x00dev); |
| 602 | break; |
| 603 | case STATE_RADIO_OFF: |
| 604 | /* |
| 605 | * After the radio has been disabled, the device should |
| 606 | * be put to sleep for powersaving. |
| 607 | */ |
| 608 | rt2800pci_disable_radio(rt2x00dev); |
| 609 | rt2800pci_set_state(rt2x00dev, STATE_SLEEP); |
| 610 | break; |
| 611 | case STATE_RADIO_RX_ON: |
| 612 | case STATE_RADIO_RX_ON_LINK: |
| 613 | case STATE_RADIO_RX_OFF: |
| 614 | case STATE_RADIO_RX_OFF_LINK: |
| 615 | rt2800pci_toggle_rx(rt2x00dev, state); |
| 616 | break; |
| 617 | case STATE_RADIO_IRQ_ON: |
| 618 | case STATE_RADIO_IRQ_OFF: |
| 619 | rt2800pci_toggle_irq(rt2x00dev, state); |
| 620 | break; |
| 621 | case STATE_DEEP_SLEEP: |
| 622 | case STATE_SLEEP: |
| 623 | case STATE_STANDBY: |
| 624 | case STATE_AWAKE: |
| 625 | retval = rt2800pci_set_state(rt2x00dev, state); |
| 626 | break; |
| 627 | default: |
| 628 | retval = -ENOTSUPP; |
| 629 | break; |
| 630 | } |
| 631 | |
| 632 | if (unlikely(retval)) |
| 633 | ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n", |
| 634 | state, retval); |
| 635 | |
| 636 | return retval; |
| 637 | } |
| 638 | |
| 639 | /* |
| 640 | * TX descriptor initialization |
| 641 | */ |
| 642 | static void rt2800pci_write_tx_desc(struct rt2x00_dev *rt2x00dev, |
| 643 | struct sk_buff *skb, |
| 644 | struct txentry_desc *txdesc) |
| 645 | { |
| 646 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb); |
| 647 | __le32 *txd = skbdesc->desc; |
| 648 | __le32 *txwi = (__le32 *)(skb->data - rt2x00dev->hw->extra_tx_headroom); |
| 649 | u32 word; |
| 650 | |
| 651 | /* |
| 652 | * Initialize TX Info descriptor |
| 653 | */ |
| 654 | rt2x00_desc_read(txwi, 0, &word); |
| 655 | rt2x00_set_field32(&word, TXWI_W0_FRAG, |
| 656 | test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags)); |
| 657 | rt2x00_set_field32(&word, TXWI_W0_MIMO_PS, 0); |
| 658 | rt2x00_set_field32(&word, TXWI_W0_CF_ACK, 0); |
| 659 | rt2x00_set_field32(&word, TXWI_W0_TS, |
| 660 | test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags)); |
| 661 | rt2x00_set_field32(&word, TXWI_W0_AMPDU, |
| 662 | test_bit(ENTRY_TXD_HT_AMPDU, &txdesc->flags)); |
| 663 | rt2x00_set_field32(&word, TXWI_W0_MPDU_DENSITY, txdesc->mpdu_density); |
| 664 | rt2x00_set_field32(&word, TXWI_W0_TX_OP, txdesc->ifs); |
| 665 | rt2x00_set_field32(&word, TXWI_W0_MCS, txdesc->mcs); |
| 666 | rt2x00_set_field32(&word, TXWI_W0_BW, |
| 667 | test_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags)); |
| 668 | rt2x00_set_field32(&word, TXWI_W0_SHORT_GI, |
| 669 | test_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags)); |
| 670 | rt2x00_set_field32(&word, TXWI_W0_STBC, txdesc->stbc); |
| 671 | rt2x00_set_field32(&word, TXWI_W0_PHYMODE, txdesc->rate_mode); |
| 672 | rt2x00_desc_write(txwi, 0, word); |
| 673 | |
| 674 | rt2x00_desc_read(txwi, 1, &word); |
| 675 | rt2x00_set_field32(&word, TXWI_W1_ACK, |
| 676 | test_bit(ENTRY_TXD_ACK, &txdesc->flags)); |
| 677 | rt2x00_set_field32(&word, TXWI_W1_NSEQ, |
| 678 | test_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags)); |
| 679 | rt2x00_set_field32(&word, TXWI_W1_BW_WIN_SIZE, txdesc->ba_size); |
| 680 | rt2x00_set_field32(&word, TXWI_W1_WIRELESS_CLI_ID, |
| 681 | test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags) ? |
Bartlomiej Zolnierkiewicz | f644fea | 2009-11-04 18:32:24 +0100 | [diff] [blame] | 682 | txdesc->key_idx : 0xff); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 683 | rt2x00_set_field32(&word, TXWI_W1_MPDU_TOTAL_BYTE_COUNT, |
| 684 | skb->len - txdesc->l2pad); |
| 685 | rt2x00_set_field32(&word, TXWI_W1_PACKETID, |
| 686 | skbdesc->entry->queue->qid + 1); |
| 687 | rt2x00_desc_write(txwi, 1, word); |
| 688 | |
| 689 | /* |
| 690 | * Always write 0 to IV/EIV fields, hardware will insert the IV |
Bartlomiej Zolnierkiewicz | 77dba49 | 2009-11-04 18:32:40 +0100 | [diff] [blame] | 691 | * from the IVEIV register when TXD_W3_WIV is set to 0. |
| 692 | * When TXD_W3_WIV is set to 1 it will use the IV data |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 693 | * from the descriptor. The TXWI_W1_WIRELESS_CLI_ID indicates which |
| 694 | * crypto entry in the registers should be used to encrypt the frame. |
| 695 | */ |
| 696 | _rt2x00_desc_write(txwi, 2, 0 /* skbdesc->iv[0] */); |
| 697 | _rt2x00_desc_write(txwi, 3, 0 /* skbdesc->iv[1] */); |
| 698 | |
| 699 | /* |
| 700 | * The buffers pointed by SD_PTR0/SD_LEN0 and SD_PTR1/SD_LEN1 |
| 701 | * must contains a TXWI structure + 802.11 header + padding + 802.11 |
| 702 | * data. We choose to have SD_PTR0/SD_LEN0 only contains TXWI and |
| 703 | * SD_PTR1/SD_LEN1 contains 802.11 header + padding + 802.11 |
| 704 | * data. It means that LAST_SEC0 is always 0. |
| 705 | */ |
| 706 | |
| 707 | /* |
| 708 | * Initialize TX descriptor |
| 709 | */ |
| 710 | rt2x00_desc_read(txd, 0, &word); |
| 711 | rt2x00_set_field32(&word, TXD_W0_SD_PTR0, skbdesc->skb_dma); |
| 712 | rt2x00_desc_write(txd, 0, word); |
| 713 | |
| 714 | rt2x00_desc_read(txd, 1, &word); |
| 715 | rt2x00_set_field32(&word, TXD_W1_SD_LEN1, skb->len); |
| 716 | rt2x00_set_field32(&word, TXD_W1_LAST_SEC1, |
| 717 | !test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags)); |
| 718 | rt2x00_set_field32(&word, TXD_W1_BURST, |
| 719 | test_bit(ENTRY_TXD_BURST, &txdesc->flags)); |
| 720 | rt2x00_set_field32(&word, TXD_W1_SD_LEN0, |
| 721 | rt2x00dev->hw->extra_tx_headroom); |
| 722 | rt2x00_set_field32(&word, TXD_W1_LAST_SEC0, 0); |
| 723 | rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 0); |
| 724 | rt2x00_desc_write(txd, 1, word); |
| 725 | |
| 726 | rt2x00_desc_read(txd, 2, &word); |
| 727 | rt2x00_set_field32(&word, TXD_W2_SD_PTR1, |
| 728 | skbdesc->skb_dma + rt2x00dev->hw->extra_tx_headroom); |
| 729 | rt2x00_desc_write(txd, 2, word); |
| 730 | |
| 731 | rt2x00_desc_read(txd, 3, &word); |
| 732 | rt2x00_set_field32(&word, TXD_W3_WIV, |
| 733 | !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags)); |
| 734 | rt2x00_set_field32(&word, TXD_W3_QSEL, 2); |
| 735 | rt2x00_desc_write(txd, 3, word); |
| 736 | } |
| 737 | |
| 738 | /* |
| 739 | * TX data initialization |
| 740 | */ |
| 741 | static void rt2800pci_write_beacon(struct queue_entry *entry) |
| 742 | { |
| 743 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
| 744 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
| 745 | unsigned int beacon_base; |
| 746 | u32 reg; |
| 747 | |
| 748 | /* |
| 749 | * Disable beaconing while we are reloading the beacon data, |
| 750 | * otherwise we might be sending out invalid data. |
| 751 | */ |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 752 | rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 753 | rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 0); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 754 | rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 755 | |
| 756 | /* |
| 757 | * Write entire beacon with descriptor to register. |
| 758 | */ |
| 759 | beacon_base = HW_BEACON_OFFSET(entry->entry_idx); |
Bartlomiej Zolnierkiewicz | 4f2732c | 2009-11-04 18:33:27 +0100 | [diff] [blame] | 760 | rt2800_register_multiwrite(rt2x00dev, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 761 | beacon_base, |
| 762 | skbdesc->desc, skbdesc->desc_len); |
Bartlomiej Zolnierkiewicz | 4f2732c | 2009-11-04 18:33:27 +0100 | [diff] [blame] | 763 | rt2800_register_multiwrite(rt2x00dev, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 764 | beacon_base + skbdesc->desc_len, |
| 765 | entry->skb->data, entry->skb->len); |
| 766 | |
| 767 | /* |
| 768 | * Clean up beacon skb. |
| 769 | */ |
| 770 | dev_kfree_skb_any(entry->skb); |
| 771 | entry->skb = NULL; |
| 772 | } |
| 773 | |
| 774 | static void rt2800pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, |
| 775 | const enum data_queue_qid queue_idx) |
| 776 | { |
| 777 | struct data_queue *queue; |
| 778 | unsigned int idx, qidx = 0; |
| 779 | u32 reg; |
| 780 | |
| 781 | if (queue_idx == QID_BEACON) { |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 782 | rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 783 | if (!rt2x00_get_field32(reg, BCN_TIME_CFG_BEACON_GEN)) { |
| 784 | rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 1); |
| 785 | rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 1); |
| 786 | rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 1); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 787 | rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 788 | } |
| 789 | return; |
| 790 | } |
| 791 | |
| 792 | if (queue_idx > QID_HCCA && queue_idx != QID_MGMT) |
| 793 | return; |
| 794 | |
| 795 | queue = rt2x00queue_get_queue(rt2x00dev, queue_idx); |
| 796 | idx = queue->index[Q_INDEX]; |
| 797 | |
| 798 | if (queue_idx == QID_MGMT) |
| 799 | qidx = 5; |
| 800 | else |
| 801 | qidx = queue_idx; |
| 802 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 803 | rt2800_register_write(rt2x00dev, TX_CTX_IDX(qidx), idx); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 804 | } |
| 805 | |
| 806 | static void rt2800pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev, |
| 807 | const enum data_queue_qid qid) |
| 808 | { |
| 809 | u32 reg; |
| 810 | |
| 811 | if (qid == QID_BEACON) { |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 812 | rt2800_register_write(rt2x00dev, BCN_TIME_CFG, 0); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 813 | return; |
| 814 | } |
| 815 | |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 816 | rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 817 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX0, (qid == QID_AC_BE)); |
| 818 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX1, (qid == QID_AC_BK)); |
| 819 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX2, (qid == QID_AC_VI)); |
| 820 | rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX3, (qid == QID_AC_VO)); |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 821 | rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 822 | } |
| 823 | |
| 824 | /* |
| 825 | * RX control handlers |
| 826 | */ |
| 827 | static void rt2800pci_fill_rxdone(struct queue_entry *entry, |
| 828 | struct rxdone_entry_desc *rxdesc) |
| 829 | { |
| 830 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
| 831 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
| 832 | struct queue_entry_priv_pci *entry_priv = entry->priv_data; |
| 833 | __le32 *rxd = entry_priv->desc; |
| 834 | __le32 *rxwi = (__le32 *)entry->skb->data; |
| 835 | u32 rxd3; |
| 836 | u32 rxwi0; |
| 837 | u32 rxwi1; |
| 838 | u32 rxwi2; |
| 839 | u32 rxwi3; |
| 840 | |
| 841 | rt2x00_desc_read(rxd, 3, &rxd3); |
| 842 | rt2x00_desc_read(rxwi, 0, &rxwi0); |
| 843 | rt2x00_desc_read(rxwi, 1, &rxwi1); |
| 844 | rt2x00_desc_read(rxwi, 2, &rxwi2); |
| 845 | rt2x00_desc_read(rxwi, 3, &rxwi3); |
| 846 | |
| 847 | if (rt2x00_get_field32(rxd3, RXD_W3_CRC_ERROR)) |
| 848 | rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC; |
| 849 | |
| 850 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) { |
| 851 | /* |
| 852 | * Unfortunately we don't know the cipher type used during |
| 853 | * decryption. This prevents us from correct providing |
| 854 | * correct statistics through debugfs. |
| 855 | */ |
| 856 | rxdesc->cipher = rt2x00_get_field32(rxwi0, RXWI_W0_UDF); |
| 857 | rxdesc->cipher_status = |
| 858 | rt2x00_get_field32(rxd3, RXD_W3_CIPHER_ERROR); |
| 859 | } |
| 860 | |
| 861 | if (rt2x00_get_field32(rxd3, RXD_W3_DECRYPTED)) { |
| 862 | /* |
| 863 | * Hardware has stripped IV/EIV data from 802.11 frame during |
| 864 | * decryption. Unfortunately the descriptor doesn't contain |
| 865 | * any fields with the EIV/IV data either, so they can't |
| 866 | * be restored by rt2x00lib. |
| 867 | */ |
| 868 | rxdesc->flags |= RX_FLAG_IV_STRIPPED; |
| 869 | |
| 870 | if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS) |
| 871 | rxdesc->flags |= RX_FLAG_DECRYPTED; |
| 872 | else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC) |
| 873 | rxdesc->flags |= RX_FLAG_MMIC_ERROR; |
| 874 | } |
| 875 | |
| 876 | if (rt2x00_get_field32(rxd3, RXD_W3_MY_BSS)) |
| 877 | rxdesc->dev_flags |= RXDONE_MY_BSS; |
| 878 | |
| 879 | if (rt2x00_get_field32(rxd3, RXD_W3_L2PAD)) { |
| 880 | rxdesc->dev_flags |= RXDONE_L2PAD; |
| 881 | skbdesc->flags |= SKBDESC_L2_PADDED; |
| 882 | } |
| 883 | |
| 884 | if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI)) |
| 885 | rxdesc->flags |= RX_FLAG_SHORT_GI; |
| 886 | |
| 887 | if (rt2x00_get_field32(rxwi1, RXWI_W1_BW)) |
| 888 | rxdesc->flags |= RX_FLAG_40MHZ; |
| 889 | |
| 890 | /* |
| 891 | * Detect RX rate, always use MCS as signal type. |
| 892 | */ |
| 893 | rxdesc->dev_flags |= RXDONE_SIGNAL_MCS; |
| 894 | rxdesc->rate_mode = rt2x00_get_field32(rxwi1, RXWI_W1_PHYMODE); |
| 895 | rxdesc->signal = rt2x00_get_field32(rxwi1, RXWI_W1_MCS); |
| 896 | |
| 897 | /* |
| 898 | * Mask of 0x8 bit to remove the short preamble flag. |
| 899 | */ |
| 900 | if (rxdesc->rate_mode == RATE_MODE_CCK) |
| 901 | rxdesc->signal &= ~0x8; |
| 902 | |
| 903 | rxdesc->rssi = |
| 904 | (rt2x00_get_field32(rxwi2, RXWI_W2_RSSI0) + |
| 905 | rt2x00_get_field32(rxwi2, RXWI_W2_RSSI1)) / 2; |
| 906 | |
| 907 | rxdesc->noise = |
| 908 | (rt2x00_get_field32(rxwi3, RXWI_W3_SNR0) + |
| 909 | rt2x00_get_field32(rxwi3, RXWI_W3_SNR1)) / 2; |
| 910 | |
| 911 | rxdesc->size = rt2x00_get_field32(rxwi0, RXWI_W0_MPDU_TOTAL_BYTE_COUNT); |
| 912 | |
| 913 | /* |
| 914 | * Set RX IDX in register to inform hardware that we have handled |
| 915 | * this entry and it is available for reuse again. |
| 916 | */ |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 917 | rt2800_register_write(rt2x00dev, RX_CRX_IDX, entry->entry_idx); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 918 | |
| 919 | /* |
| 920 | * Remove TXWI descriptor from start of buffer. |
| 921 | */ |
| 922 | skb_pull(entry->skb, RXWI_DESC_SIZE); |
| 923 | skb_trim(entry->skb, rxdesc->size); |
| 924 | } |
| 925 | |
| 926 | /* |
| 927 | * Interrupt functions. |
| 928 | */ |
| 929 | static void rt2800pci_txdone(struct rt2x00_dev *rt2x00dev) |
| 930 | { |
| 931 | struct data_queue *queue; |
| 932 | struct queue_entry *entry; |
| 933 | struct queue_entry *entry_done; |
| 934 | struct queue_entry_priv_pci *entry_priv; |
| 935 | struct txdone_entry_desc txdesc; |
| 936 | u32 word; |
| 937 | u32 reg; |
| 938 | u32 old_reg; |
| 939 | unsigned int type; |
| 940 | unsigned int index; |
| 941 | u16 mcs, real_mcs; |
| 942 | |
| 943 | /* |
| 944 | * During each loop we will compare the freshly read |
| 945 | * TX_STA_FIFO register value with the value read from |
| 946 | * the previous loop. If the 2 values are equal then |
| 947 | * we should stop processing because the chance it |
| 948 | * quite big that the device has been unplugged and |
| 949 | * we risk going into an endless loop. |
| 950 | */ |
| 951 | old_reg = 0; |
| 952 | |
| 953 | while (1) { |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 954 | rt2800_register_read(rt2x00dev, TX_STA_FIFO, ®); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 955 | if (!rt2x00_get_field32(reg, TX_STA_FIFO_VALID)) |
| 956 | break; |
| 957 | |
| 958 | if (old_reg == reg) |
| 959 | break; |
| 960 | old_reg = reg; |
| 961 | |
| 962 | /* |
| 963 | * Skip this entry when it contains an invalid |
| 964 | * queue identication number. |
| 965 | */ |
| 966 | type = rt2x00_get_field32(reg, TX_STA_FIFO_PID_TYPE) - 1; |
| 967 | if (type >= QID_RX) |
| 968 | continue; |
| 969 | |
| 970 | queue = rt2x00queue_get_queue(rt2x00dev, type); |
| 971 | if (unlikely(!queue)) |
| 972 | continue; |
| 973 | |
| 974 | /* |
| 975 | * Skip this entry when it contains an invalid |
| 976 | * index number. |
| 977 | */ |
| 978 | index = rt2x00_get_field32(reg, TX_STA_FIFO_WCID) - 1; |
| 979 | if (unlikely(index >= queue->limit)) |
| 980 | continue; |
| 981 | |
| 982 | entry = &queue->entries[index]; |
| 983 | entry_priv = entry->priv_data; |
| 984 | rt2x00_desc_read((__le32 *)entry->skb->data, 0, &word); |
| 985 | |
| 986 | entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE); |
| 987 | while (entry != entry_done) { |
| 988 | /* |
| 989 | * Catch up. |
| 990 | * Just report any entries we missed as failed. |
| 991 | */ |
| 992 | WARNING(rt2x00dev, |
| 993 | "TX status report missed for entry %d\n", |
| 994 | entry_done->entry_idx); |
| 995 | |
| 996 | txdesc.flags = 0; |
| 997 | __set_bit(TXDONE_UNKNOWN, &txdesc.flags); |
| 998 | txdesc.retry = 0; |
| 999 | |
| 1000 | rt2x00lib_txdone(entry_done, &txdesc); |
| 1001 | entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE); |
| 1002 | } |
| 1003 | |
| 1004 | /* |
| 1005 | * Obtain the status about this packet. |
| 1006 | */ |
| 1007 | txdesc.flags = 0; |
| 1008 | if (rt2x00_get_field32(reg, TX_STA_FIFO_TX_SUCCESS)) |
| 1009 | __set_bit(TXDONE_SUCCESS, &txdesc.flags); |
| 1010 | else |
| 1011 | __set_bit(TXDONE_FAILURE, &txdesc.flags); |
| 1012 | |
| 1013 | /* |
| 1014 | * Ralink has a retry mechanism using a global fallback |
| 1015 | * table. We setup this fallback table to try immediate |
| 1016 | * lower rate for all rates. In the TX_STA_FIFO, |
| 1017 | * the MCS field contains the MCS used for the successfull |
| 1018 | * transmission. If the first transmission succeed, |
| 1019 | * we have mcs == tx_mcs. On the second transmission, |
| 1020 | * we have mcs = tx_mcs - 1. So the number of |
| 1021 | * retry is (tx_mcs - mcs). |
| 1022 | */ |
| 1023 | mcs = rt2x00_get_field32(word, TXWI_W0_MCS); |
| 1024 | real_mcs = rt2x00_get_field32(reg, TX_STA_FIFO_MCS); |
| 1025 | __set_bit(TXDONE_FALLBACK, &txdesc.flags); |
| 1026 | txdesc.retry = mcs - min(mcs, real_mcs); |
| 1027 | |
| 1028 | rt2x00lib_txdone(entry, &txdesc); |
| 1029 | } |
| 1030 | } |
| 1031 | |
| 1032 | static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance) |
| 1033 | { |
| 1034 | struct rt2x00_dev *rt2x00dev = dev_instance; |
| 1035 | u32 reg; |
| 1036 | |
| 1037 | /* Read status and ACK all interrupts */ |
Bartlomiej Zolnierkiewicz | 9ca21eb | 2009-11-04 18:33:13 +0100 | [diff] [blame] | 1038 | rt2800_register_read(rt2x00dev, INT_SOURCE_CSR, ®); |
| 1039 | rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, reg); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1040 | |
| 1041 | if (!reg) |
| 1042 | return IRQ_NONE; |
| 1043 | |
| 1044 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
| 1045 | return IRQ_HANDLED; |
| 1046 | |
| 1047 | /* |
| 1048 | * 1 - Rx ring done interrupt. |
| 1049 | */ |
| 1050 | if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RX_DONE)) |
| 1051 | rt2x00pci_rxdone(rt2x00dev); |
| 1052 | |
| 1053 | if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) |
| 1054 | rt2800pci_txdone(rt2x00dev); |
| 1055 | |
| 1056 | return IRQ_HANDLED; |
| 1057 | } |
| 1058 | |
| 1059 | /* |
| 1060 | * Device probe functions. |
| 1061 | */ |
Bartlomiej Zolnierkiewicz | 7ab7132 | 2009-11-08 14:38:54 +0100 | [diff] [blame] | 1062 | static int rt2800pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) |
| 1063 | { |
| 1064 | /* |
| 1065 | * Read EEPROM into buffer |
| 1066 | */ |
| 1067 | switch (rt2x00dev->chip.rt) { |
| 1068 | case RT2880: |
| 1069 | case RT3052: |
| 1070 | rt2800pci_read_eeprom_soc(rt2x00dev); |
| 1071 | break; |
| 1072 | default: |
| 1073 | if (rt2800pci_efuse_detect(rt2x00dev)) |
| 1074 | rt2800pci_read_eeprom_efuse(rt2x00dev); |
| 1075 | else |
| 1076 | rt2800pci_read_eeprom_pci(rt2x00dev); |
| 1077 | break; |
| 1078 | } |
| 1079 | |
| 1080 | return rt2800_validate_eeprom(rt2x00dev); |
| 1081 | } |
| 1082 | |
Bartlomiej Zolnierkiewicz | b0a1eda | 2009-11-04 18:35:00 +0100 | [diff] [blame] | 1083 | static const struct rt2800_ops rt2800pci_rt2800_ops = { |
| 1084 | .register_read = rt2x00pci_register_read, |
| 1085 | .register_write = rt2x00pci_register_write, |
| 1086 | .register_write_lock = rt2x00pci_register_write, /* same for PCI */ |
| 1087 | |
| 1088 | .register_multiread = rt2x00pci_register_multiread, |
| 1089 | .register_multiwrite = rt2x00pci_register_multiwrite, |
| 1090 | |
| 1091 | .regbusy_read = rt2x00pci_regbusy_read, |
| 1092 | }; |
| 1093 | |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1094 | static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev) |
| 1095 | { |
| 1096 | int retval; |
| 1097 | |
Bartlomiej Zolnierkiewicz | b0a1eda | 2009-11-04 18:35:00 +0100 | [diff] [blame] | 1098 | rt2x00dev->priv = (void *)&rt2800pci_rt2800_ops; |
| 1099 | |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1100 | /* |
| 1101 | * Allocate eeprom data. |
| 1102 | */ |
| 1103 | retval = rt2800pci_validate_eeprom(rt2x00dev); |
| 1104 | if (retval) |
| 1105 | return retval; |
| 1106 | |
Bartlomiej Zolnierkiewicz | 38bd7b8 | 2009-11-08 14:39:01 +0100 | [diff] [blame] | 1107 | retval = rt2800_init_eeprom(rt2x00dev); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1108 | if (retval) |
| 1109 | return retval; |
| 1110 | |
| 1111 | /* |
| 1112 | * Initialize hw specifications. |
| 1113 | */ |
Bartlomiej Zolnierkiewicz | 4da2933 | 2009-11-08 14:39:32 +0100 | [diff] [blame] | 1114 | retval = rt2800_probe_hw_mode(rt2x00dev); |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1115 | if (retval) |
| 1116 | return retval; |
| 1117 | |
| 1118 | /* |
| 1119 | * This device has multiple filters for control frames |
| 1120 | * and has a separate filter for PS Poll frames. |
| 1121 | */ |
| 1122 | __set_bit(DRIVER_SUPPORT_CONTROL_FILTERS, &rt2x00dev->flags); |
| 1123 | __set_bit(DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL, &rt2x00dev->flags); |
| 1124 | |
| 1125 | /* |
| 1126 | * This device requires firmware. |
| 1127 | */ |
| 1128 | if (!rt2x00_rt(&rt2x00dev->chip, RT2880) && |
| 1129 | !rt2x00_rt(&rt2x00dev->chip, RT3052)) |
| 1130 | __set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags); |
| 1131 | __set_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags); |
| 1132 | __set_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags); |
| 1133 | if (!modparam_nohwcrypt) |
| 1134 | __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags); |
| 1135 | |
| 1136 | /* |
| 1137 | * Set the rssi offset. |
| 1138 | */ |
| 1139 | rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET; |
| 1140 | |
| 1141 | return 0; |
| 1142 | } |
| 1143 | |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1144 | static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = { |
| 1145 | .irq_handler = rt2800pci_interrupt, |
| 1146 | .probe_hw = rt2800pci_probe_hw, |
| 1147 | .get_firmware_name = rt2800pci_get_firmware_name, |
| 1148 | .check_firmware = rt2800pci_check_firmware, |
| 1149 | .load_firmware = rt2800pci_load_firmware, |
| 1150 | .initialize = rt2x00pci_initialize, |
| 1151 | .uninitialize = rt2x00pci_uninitialize, |
| 1152 | .get_entry_state = rt2800pci_get_entry_state, |
| 1153 | .clear_entry = rt2800pci_clear_entry, |
| 1154 | .set_device_state = rt2800pci_set_device_state, |
Bartlomiej Zolnierkiewicz | f445061 | 2009-11-04 18:36:40 +0100 | [diff] [blame] | 1155 | .rfkill_poll = rt2800_rfkill_poll, |
| 1156 | .link_stats = rt2800_link_stats, |
| 1157 | .reset_tuner = rt2800_reset_tuner, |
| 1158 | .link_tuner = rt2800_link_tuner, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1159 | .write_tx_desc = rt2800pci_write_tx_desc, |
| 1160 | .write_tx_data = rt2x00pci_write_tx_data, |
| 1161 | .write_beacon = rt2800pci_write_beacon, |
| 1162 | .kick_tx_queue = rt2800pci_kick_tx_queue, |
| 1163 | .kill_tx_queue = rt2800pci_kill_tx_queue, |
| 1164 | .fill_rxdone = rt2800pci_fill_rxdone, |
Bartlomiej Zolnierkiewicz | f445061 | 2009-11-04 18:36:40 +0100 | [diff] [blame] | 1165 | .config_shared_key = rt2800_config_shared_key, |
| 1166 | .config_pairwise_key = rt2800_config_pairwise_key, |
| 1167 | .config_filter = rt2800_config_filter, |
| 1168 | .config_intf = rt2800_config_intf, |
| 1169 | .config_erp = rt2800_config_erp, |
| 1170 | .config_ant = rt2800_config_ant, |
| 1171 | .config = rt2800_config, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1172 | }; |
| 1173 | |
| 1174 | static const struct data_queue_desc rt2800pci_queue_rx = { |
| 1175 | .entry_num = RX_ENTRIES, |
| 1176 | .data_size = AGGREGATION_SIZE, |
| 1177 | .desc_size = RXD_DESC_SIZE, |
| 1178 | .priv_size = sizeof(struct queue_entry_priv_pci), |
| 1179 | }; |
| 1180 | |
| 1181 | static const struct data_queue_desc rt2800pci_queue_tx = { |
| 1182 | .entry_num = TX_ENTRIES, |
| 1183 | .data_size = AGGREGATION_SIZE, |
| 1184 | .desc_size = TXD_DESC_SIZE, |
| 1185 | .priv_size = sizeof(struct queue_entry_priv_pci), |
| 1186 | }; |
| 1187 | |
| 1188 | static const struct data_queue_desc rt2800pci_queue_bcn = { |
| 1189 | .entry_num = 8 * BEACON_ENTRIES, |
| 1190 | .data_size = 0, /* No DMA required for beacons */ |
| 1191 | .desc_size = TXWI_DESC_SIZE, |
| 1192 | .priv_size = sizeof(struct queue_entry_priv_pci), |
| 1193 | }; |
| 1194 | |
| 1195 | static const struct rt2x00_ops rt2800pci_ops = { |
| 1196 | .name = KBUILD_MODNAME, |
| 1197 | .max_sta_intf = 1, |
| 1198 | .max_ap_intf = 8, |
| 1199 | .eeprom_size = EEPROM_SIZE, |
| 1200 | .rf_size = RF_SIZE, |
| 1201 | .tx_queues = NUM_TX_QUEUES, |
| 1202 | .rx = &rt2800pci_queue_rx, |
| 1203 | .tx = &rt2800pci_queue_tx, |
| 1204 | .bcn = &rt2800pci_queue_bcn, |
| 1205 | .lib = &rt2800pci_rt2x00_ops, |
Bartlomiej Zolnierkiewicz | 2ce3399 | 2009-11-04 18:37:05 +0100 | [diff] [blame] | 1206 | .hw = &rt2800_mac80211_ops, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1207 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS |
Bartlomiej Zolnierkiewicz | f445061 | 2009-11-04 18:36:40 +0100 | [diff] [blame] | 1208 | .debugfs = &rt2800_rt2x00debug, |
Ivo van Doorn | a9b3a9f | 2009-10-15 22:04:14 +0200 | [diff] [blame] | 1209 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ |
| 1210 | }; |
| 1211 | |
| 1212 | /* |
| 1213 | * RT2800pci module information. |
| 1214 | */ |
| 1215 | static struct pci_device_id rt2800pci_device_table[] = { |
| 1216 | { PCI_DEVICE(0x1462, 0x891a), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1217 | { PCI_DEVICE(0x1432, 0x7708), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1218 | { PCI_DEVICE(0x1432, 0x7727), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1219 | { PCI_DEVICE(0x1432, 0x7728), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1220 | { PCI_DEVICE(0x1432, 0x7738), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1221 | { PCI_DEVICE(0x1432, 0x7748), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1222 | { PCI_DEVICE(0x1432, 0x7758), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1223 | { PCI_DEVICE(0x1432, 0x7768), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1224 | { PCI_DEVICE(0x1814, 0x0601), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1225 | { PCI_DEVICE(0x1814, 0x0681), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1226 | { PCI_DEVICE(0x1814, 0x0701), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1227 | { PCI_DEVICE(0x1814, 0x0781), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1228 | { PCI_DEVICE(0x1814, 0x3060), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1229 | { PCI_DEVICE(0x1814, 0x3062), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1230 | { PCI_DEVICE(0x1814, 0x3090), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1231 | { PCI_DEVICE(0x1814, 0x3091), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1232 | { PCI_DEVICE(0x1814, 0x3092), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1233 | { PCI_DEVICE(0x1814, 0x3562), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1234 | { PCI_DEVICE(0x1814, 0x3592), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1235 | { PCI_DEVICE(0x1a3b, 0x1059), PCI_DEVICE_DATA(&rt2800pci_ops) }, |
| 1236 | { 0, } |
| 1237 | }; |
| 1238 | |
| 1239 | MODULE_AUTHOR(DRV_PROJECT); |
| 1240 | MODULE_VERSION(DRV_VERSION); |
| 1241 | MODULE_DESCRIPTION("Ralink RT2800 PCI & PCMCIA Wireless LAN driver."); |
| 1242 | MODULE_SUPPORTED_DEVICE("Ralink RT2860 PCI & PCMCIA chipset based cards"); |
| 1243 | #ifdef CONFIG_RT2800PCI_PCI |
| 1244 | MODULE_FIRMWARE(FIRMWARE_RT2860); |
| 1245 | MODULE_DEVICE_TABLE(pci, rt2800pci_device_table); |
| 1246 | #endif /* CONFIG_RT2800PCI_PCI */ |
| 1247 | MODULE_LICENSE("GPL"); |
| 1248 | |
| 1249 | #ifdef CONFIG_RT2800PCI_WISOC |
| 1250 | #if defined(CONFIG_RALINK_RT288X) |
| 1251 | __rt2x00soc_probe(RT2880, &rt2800pci_ops); |
| 1252 | #elif defined(CONFIG_RALINK_RT305X) |
| 1253 | __rt2x00soc_probe(RT3052, &rt2800pci_ops); |
| 1254 | #endif |
| 1255 | |
| 1256 | static struct platform_driver rt2800soc_driver = { |
| 1257 | .driver = { |
| 1258 | .name = "rt2800_wmac", |
| 1259 | .owner = THIS_MODULE, |
| 1260 | .mod_name = KBUILD_MODNAME, |
| 1261 | }, |
| 1262 | .probe = __rt2x00soc_probe, |
| 1263 | .remove = __devexit_p(rt2x00soc_remove), |
| 1264 | .suspend = rt2x00soc_suspend, |
| 1265 | .resume = rt2x00soc_resume, |
| 1266 | }; |
| 1267 | #endif /* CONFIG_RT2800PCI_WISOC */ |
| 1268 | |
| 1269 | #ifdef CONFIG_RT2800PCI_PCI |
| 1270 | static struct pci_driver rt2800pci_driver = { |
| 1271 | .name = KBUILD_MODNAME, |
| 1272 | .id_table = rt2800pci_device_table, |
| 1273 | .probe = rt2x00pci_probe, |
| 1274 | .remove = __devexit_p(rt2x00pci_remove), |
| 1275 | .suspend = rt2x00pci_suspend, |
| 1276 | .resume = rt2x00pci_resume, |
| 1277 | }; |
| 1278 | #endif /* CONFIG_RT2800PCI_PCI */ |
| 1279 | |
| 1280 | static int __init rt2800pci_init(void) |
| 1281 | { |
| 1282 | int ret = 0; |
| 1283 | |
| 1284 | #ifdef CONFIG_RT2800PCI_WISOC |
| 1285 | ret = platform_driver_register(&rt2800soc_driver); |
| 1286 | if (ret) |
| 1287 | return ret; |
| 1288 | #endif |
| 1289 | #ifdef CONFIG_RT2800PCI_PCI |
| 1290 | ret = pci_register_driver(&rt2800pci_driver); |
| 1291 | if (ret) { |
| 1292 | #ifdef CONFIG_RT2800PCI_WISOC |
| 1293 | platform_driver_unregister(&rt2800soc_driver); |
| 1294 | #endif |
| 1295 | return ret; |
| 1296 | } |
| 1297 | #endif |
| 1298 | |
| 1299 | return ret; |
| 1300 | } |
| 1301 | |
| 1302 | static void __exit rt2800pci_exit(void) |
| 1303 | { |
| 1304 | #ifdef CONFIG_RT2800PCI_PCI |
| 1305 | pci_unregister_driver(&rt2800pci_driver); |
| 1306 | #endif |
| 1307 | #ifdef CONFIG_RT2800PCI_WISOC |
| 1308 | platform_driver_unregister(&rt2800soc_driver); |
| 1309 | #endif |
| 1310 | } |
| 1311 | |
| 1312 | module_init(rt2800pci_init); |
| 1313 | module_exit(rt2800pci_exit); |