Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Linux device driver for RTL8180 / RTL8185 |
| 4 | * |
| 5 | * Copyright 2007 Michael Wu <flamingice@sourmilk.net> |
| 6 | * Copyright 2007 Andrea Merello <andreamrl@tiscali.it> |
| 7 | * |
| 8 | * Based on the r8180 driver, which is: |
| 9 | * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al. |
| 10 | * |
| 11 | * Thanks to Realtek for their support! |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License version 2 as |
| 15 | * published by the Free Software Foundation. |
| 16 | */ |
| 17 | |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/pci.h> |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/etherdevice.h> |
| 22 | #include <linux/eeprom_93cx6.h> |
| 23 | #include <net/mac80211.h> |
| 24 | |
| 25 | #include "rtl8180.h" |
| 26 | #include "rtl8180_rtl8225.h" |
| 27 | #include "rtl8180_sa2400.h" |
| 28 | #include "rtl8180_max2820.h" |
| 29 | #include "rtl8180_grf5101.h" |
| 30 | |
| 31 | MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); |
| 32 | MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>"); |
| 33 | MODULE_DESCRIPTION("RTL8180 / RTL8185 PCI wireless driver"); |
| 34 | MODULE_LICENSE("GPL"); |
| 35 | |
| 36 | static struct pci_device_id rtl8180_table[] __devinitdata = { |
| 37 | /* rtl8185 */ |
| 38 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8185) }, |
Adrian Bassett | 4fcc547 | 2008-01-23 16:38:33 +0000 | [diff] [blame] | 39 | { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x700f) }, |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 40 | { PCI_DEVICE(PCI_VENDOR_ID_BELKIN, 0x701f) }, |
| 41 | |
| 42 | /* rtl8180 */ |
| 43 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8180) }, |
| 44 | { PCI_DEVICE(0x1799, 0x6001) }, |
| 45 | { PCI_DEVICE(0x1799, 0x6020) }, |
| 46 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x3300) }, |
| 47 | { } |
| 48 | }; |
| 49 | |
| 50 | MODULE_DEVICE_TABLE(pci, rtl8180_table); |
| 51 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 52 | static const struct ieee80211_rate rtl818x_rates[] = { |
| 53 | { .bitrate = 10, .hw_value = 0, }, |
| 54 | { .bitrate = 20, .hw_value = 1, }, |
| 55 | { .bitrate = 55, .hw_value = 2, }, |
| 56 | { .bitrate = 110, .hw_value = 3, }, |
| 57 | { .bitrate = 60, .hw_value = 4, }, |
| 58 | { .bitrate = 90, .hw_value = 5, }, |
| 59 | { .bitrate = 120, .hw_value = 6, }, |
| 60 | { .bitrate = 180, .hw_value = 7, }, |
| 61 | { .bitrate = 240, .hw_value = 8, }, |
| 62 | { .bitrate = 360, .hw_value = 9, }, |
| 63 | { .bitrate = 480, .hw_value = 10, }, |
| 64 | { .bitrate = 540, .hw_value = 11, }, |
| 65 | }; |
| 66 | |
| 67 | static const struct ieee80211_channel rtl818x_channels[] = { |
| 68 | { .center_freq = 2412 }, |
| 69 | { .center_freq = 2417 }, |
| 70 | { .center_freq = 2422 }, |
| 71 | { .center_freq = 2427 }, |
| 72 | { .center_freq = 2432 }, |
| 73 | { .center_freq = 2437 }, |
| 74 | { .center_freq = 2442 }, |
| 75 | { .center_freq = 2447 }, |
| 76 | { .center_freq = 2452 }, |
| 77 | { .center_freq = 2457 }, |
| 78 | { .center_freq = 2462 }, |
| 79 | { .center_freq = 2467 }, |
| 80 | { .center_freq = 2472 }, |
| 81 | { .center_freq = 2484 }, |
| 82 | }; |
| 83 | |
| 84 | |
| 85 | |
| 86 | |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 87 | void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data) |
| 88 | { |
| 89 | struct rtl8180_priv *priv = dev->priv; |
| 90 | int i = 10; |
| 91 | u32 buf; |
| 92 | |
| 93 | buf = (data << 8) | addr; |
| 94 | |
| 95 | rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf | 0x80); |
| 96 | while (i--) { |
| 97 | rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->PHY[0], buf); |
| 98 | if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF)) |
| 99 | return; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | static void rtl8180_handle_rx(struct ieee80211_hw *dev) |
| 104 | { |
| 105 | struct rtl8180_priv *priv = dev->priv; |
| 106 | unsigned int count = 32; |
| 107 | |
| 108 | while (count--) { |
| 109 | struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx]; |
| 110 | struct sk_buff *skb = priv->rx_buf[priv->rx_idx]; |
| 111 | u32 flags = le32_to_cpu(entry->flags); |
| 112 | |
| 113 | if (flags & RTL8180_RX_DESC_FLAG_OWN) |
| 114 | return; |
| 115 | |
| 116 | if (unlikely(flags & (RTL8180_RX_DESC_FLAG_DMA_FAIL | |
| 117 | RTL8180_RX_DESC_FLAG_FOF | |
| 118 | RTL8180_RX_DESC_FLAG_RX_ERR))) |
| 119 | goto done; |
| 120 | else { |
| 121 | u32 flags2 = le32_to_cpu(entry->flags2); |
| 122 | struct ieee80211_rx_status rx_status = {0}; |
| 123 | struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE); |
| 124 | |
| 125 | if (unlikely(!new_skb)) |
| 126 | goto done; |
| 127 | |
| 128 | pci_unmap_single(priv->pdev, |
| 129 | *((dma_addr_t *)skb->cb), |
| 130 | MAX_RX_SIZE, PCI_DMA_FROMDEVICE); |
| 131 | skb_put(skb, flags & 0xFFF); |
| 132 | |
| 133 | rx_status.antenna = (flags2 >> 15) & 1; |
| 134 | /* TODO: improve signal/rssi reporting */ |
| 135 | rx_status.signal = flags2 & 0xFF; |
| 136 | rx_status.ssi = (flags2 >> 8) & 0x7F; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 137 | /* XXX: is this correct? */ |
| 138 | rx_status.rate_idx = (flags >> 20) & 0xF; |
| 139 | rx_status.freq = dev->conf.channel->center_freq; |
| 140 | rx_status.band = dev->conf.channel->band; |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 141 | rx_status.mactime = le64_to_cpu(entry->tsft); |
| 142 | rx_status.flag |= RX_FLAG_TSFT; |
| 143 | if (flags & RTL8180_RX_DESC_FLAG_CRC32_ERR) |
| 144 | rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; |
| 145 | |
| 146 | ieee80211_rx_irqsafe(dev, skb, &rx_status); |
| 147 | |
| 148 | skb = new_skb; |
| 149 | priv->rx_buf[priv->rx_idx] = skb; |
| 150 | *((dma_addr_t *) skb->cb) = |
| 151 | pci_map_single(priv->pdev, skb_tail_pointer(skb), |
| 152 | MAX_RX_SIZE, PCI_DMA_FROMDEVICE); |
| 153 | } |
| 154 | |
| 155 | done: |
| 156 | entry->rx_buf = cpu_to_le32(*((dma_addr_t *)skb->cb)); |
| 157 | entry->flags = cpu_to_le32(RTL8180_RX_DESC_FLAG_OWN | |
| 158 | MAX_RX_SIZE); |
| 159 | if (priv->rx_idx == 31) |
| 160 | entry->flags |= cpu_to_le32(RTL8180_RX_DESC_FLAG_EOR); |
| 161 | priv->rx_idx = (priv->rx_idx + 1) % 32; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio) |
| 166 | { |
| 167 | struct rtl8180_priv *priv = dev->priv; |
| 168 | struct rtl8180_tx_ring *ring = &priv->tx_ring[prio]; |
| 169 | |
| 170 | while (skb_queue_len(&ring->queue)) { |
| 171 | struct rtl8180_tx_desc *entry = &ring->desc[ring->idx]; |
| 172 | struct sk_buff *skb; |
Johannes Berg | 1955fd0 | 2008-02-20 12:05:59 +0100 | [diff] [blame] | 173 | struct ieee80211_tx_status status; |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 174 | struct ieee80211_tx_control *control; |
| 175 | u32 flags = le32_to_cpu(entry->flags); |
| 176 | |
| 177 | if (flags & RTL8180_TX_DESC_FLAG_OWN) |
| 178 | return; |
| 179 | |
Johannes Berg | 1955fd0 | 2008-02-20 12:05:59 +0100 | [diff] [blame] | 180 | memset(&status, 0, sizeof(status)); |
| 181 | |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 182 | ring->idx = (ring->idx + 1) % ring->entries; |
| 183 | skb = __skb_dequeue(&ring->queue); |
| 184 | pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf), |
| 185 | skb->len, PCI_DMA_TODEVICE); |
| 186 | |
| 187 | control = *((struct ieee80211_tx_control **)skb->cb); |
| 188 | if (control) |
| 189 | memcpy(&status.control, control, sizeof(*control)); |
| 190 | kfree(control); |
| 191 | |
| 192 | if (!(status.control.flags & IEEE80211_TXCTL_NO_ACK)) { |
| 193 | if (flags & RTL8180_TX_DESC_FLAG_TX_OK) |
| 194 | status.flags = IEEE80211_TX_STATUS_ACK; |
| 195 | else |
| 196 | status.excessive_retries = 1; |
| 197 | } |
| 198 | status.retry_count = flags & 0xFF; |
| 199 | |
| 200 | ieee80211_tx_status_irqsafe(dev, skb, &status); |
| 201 | if (ring->entries - skb_queue_len(&ring->queue) == 2) |
| 202 | ieee80211_wake_queue(dev, prio); |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | static irqreturn_t rtl8180_interrupt(int irq, void *dev_id) |
| 207 | { |
| 208 | struct ieee80211_hw *dev = dev_id; |
| 209 | struct rtl8180_priv *priv = dev->priv; |
| 210 | u16 reg; |
| 211 | |
| 212 | spin_lock(&priv->lock); |
| 213 | reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS); |
| 214 | if (unlikely(reg == 0xFFFF)) { |
| 215 | spin_unlock(&priv->lock); |
| 216 | return IRQ_HANDLED; |
| 217 | } |
| 218 | |
| 219 | rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg); |
| 220 | |
| 221 | if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR)) |
| 222 | rtl8180_handle_tx(dev, 3); |
| 223 | |
| 224 | if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR)) |
| 225 | rtl8180_handle_tx(dev, 2); |
| 226 | |
| 227 | if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR)) |
| 228 | rtl8180_handle_tx(dev, 1); |
| 229 | |
| 230 | if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR)) |
| 231 | rtl8180_handle_tx(dev, 0); |
| 232 | |
| 233 | if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR)) |
| 234 | rtl8180_handle_rx(dev); |
| 235 | |
| 236 | spin_unlock(&priv->lock); |
| 237 | |
| 238 | return IRQ_HANDLED; |
| 239 | } |
| 240 | |
| 241 | static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb, |
| 242 | struct ieee80211_tx_control *control) |
| 243 | { |
| 244 | struct rtl8180_priv *priv = dev->priv; |
| 245 | struct rtl8180_tx_ring *ring; |
| 246 | struct rtl8180_tx_desc *entry; |
| 247 | unsigned long flags; |
| 248 | unsigned int idx, prio; |
| 249 | dma_addr_t mapping; |
| 250 | u32 tx_flags; |
| 251 | u16 plcp_len = 0; |
| 252 | __le16 rts_duration = 0; |
| 253 | |
| 254 | prio = control->queue; |
| 255 | ring = &priv->tx_ring[prio]; |
| 256 | |
| 257 | mapping = pci_map_single(priv->pdev, skb->data, |
| 258 | skb->len, PCI_DMA_TODEVICE); |
| 259 | |
Johannes Berg | aa68cbf | 2008-02-18 14:20:30 +0100 | [diff] [blame] | 260 | BUG_ON(!control->tx_rate); |
| 261 | |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 262 | tx_flags = RTL8180_TX_DESC_FLAG_OWN | RTL8180_TX_DESC_FLAG_FS | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 263 | RTL8180_TX_DESC_FLAG_LS | |
Johannes Berg | aa68cbf | 2008-02-18 14:20:30 +0100 | [diff] [blame] | 264 | (control->tx_rate->hw_value << 24) | skb->len; |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 265 | |
| 266 | if (priv->r8185) |
| 267 | tx_flags |= RTL8180_TX_DESC_FLAG_DMA | |
| 268 | RTL8180_TX_DESC_FLAG_NO_ENC; |
| 269 | |
Johannes Berg | aa68cbf | 2008-02-18 14:20:30 +0100 | [diff] [blame] | 270 | if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) { |
| 271 | BUG_ON(!control->rts_cts_rate); |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 272 | tx_flags |= RTL8180_TX_DESC_FLAG_RTS; |
Johannes Berg | aa68cbf | 2008-02-18 14:20:30 +0100 | [diff] [blame] | 273 | tx_flags |= control->rts_cts_rate->hw_value << 19; |
| 274 | } else if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) { |
| 275 | BUG_ON(!control->rts_cts_rate); |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 276 | tx_flags |= RTL8180_TX_DESC_FLAG_CTS; |
Johannes Berg | aa68cbf | 2008-02-18 14:20:30 +0100 | [diff] [blame] | 277 | tx_flags |= control->rts_cts_rate->hw_value << 19; |
| 278 | } |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 279 | |
| 280 | *((struct ieee80211_tx_control **) skb->cb) = |
| 281 | kmemdup(control, sizeof(*control), GFP_ATOMIC); |
| 282 | |
| 283 | if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 284 | rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len, |
| 285 | control); |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 286 | |
| 287 | if (!priv->r8185) { |
| 288 | unsigned int remainder; |
| 289 | |
| 290 | plcp_len = DIV_ROUND_UP(16 * (skb->len + 4), |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 291 | (control->tx_rate->bitrate * 2) / 10); |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 292 | remainder = (16 * (skb->len + 4)) % |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 293 | ((control->tx_rate->bitrate * 2) / 10); |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 294 | if (remainder > 0 && remainder <= 6) |
| 295 | plcp_len |= 1 << 15; |
| 296 | } |
| 297 | |
| 298 | spin_lock_irqsave(&priv->lock, flags); |
| 299 | idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries; |
| 300 | entry = &ring->desc[idx]; |
| 301 | |
| 302 | entry->rts_duration = rts_duration; |
| 303 | entry->plcp_len = cpu_to_le16(plcp_len); |
| 304 | entry->tx_buf = cpu_to_le32(mapping); |
| 305 | entry->frame_len = cpu_to_le32(skb->len); |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 306 | entry->flags2 = control->alt_retry_rate != NULL ? |
| 307 | control->alt_retry_rate->bitrate << 4 : 0; |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 308 | entry->retry_limit = control->retry_limit; |
| 309 | entry->flags = cpu_to_le32(tx_flags); |
| 310 | __skb_queue_tail(&ring->queue, skb); |
| 311 | if (ring->entries - skb_queue_len(&ring->queue) < 2) |
| 312 | ieee80211_stop_queue(dev, control->queue); |
| 313 | spin_unlock_irqrestore(&priv->lock, flags); |
| 314 | |
| 315 | rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4))); |
| 316 | |
| 317 | return 0; |
| 318 | } |
| 319 | |
| 320 | void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam) |
| 321 | { |
| 322 | u8 reg; |
| 323 | |
| 324 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
| 325 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); |
| 326 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, |
| 327 | reg | RTL818X_CONFIG3_ANAPARAM_WRITE); |
| 328 | rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam); |
| 329 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, |
| 330 | reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE); |
| 331 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
| 332 | } |
| 333 | |
| 334 | static int rtl8180_init_hw(struct ieee80211_hw *dev) |
| 335 | { |
| 336 | struct rtl8180_priv *priv = dev->priv; |
| 337 | u16 reg; |
| 338 | |
| 339 | rtl818x_iowrite8(priv, &priv->map->CMD, 0); |
| 340 | rtl818x_ioread8(priv, &priv->map->CMD); |
| 341 | msleep(10); |
| 342 | |
| 343 | /* reset */ |
| 344 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); |
| 345 | rtl818x_ioread8(priv, &priv->map->CMD); |
| 346 | |
| 347 | reg = rtl818x_ioread8(priv, &priv->map->CMD); |
| 348 | reg &= (1 << 1); |
| 349 | reg |= RTL818X_CMD_RESET; |
| 350 | rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET); |
| 351 | rtl818x_ioread8(priv, &priv->map->CMD); |
| 352 | msleep(200); |
| 353 | |
| 354 | /* check success of reset */ |
| 355 | if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) { |
| 356 | printk(KERN_ERR "%s: reset timeout!\n", wiphy_name(dev->wiphy)); |
| 357 | return -ETIMEDOUT; |
| 358 | } |
| 359 | |
| 360 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD); |
| 361 | rtl818x_ioread8(priv, &priv->map->CMD); |
| 362 | msleep(200); |
| 363 | |
| 364 | if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) { |
| 365 | /* For cardbus */ |
| 366 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); |
| 367 | reg |= 1 << 1; |
| 368 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); |
| 369 | reg = rtl818x_ioread16(priv, &priv->map->FEMR); |
| 370 | reg |= (1 << 15) | (1 << 14) | (1 << 4); |
| 371 | rtl818x_iowrite16(priv, &priv->map->FEMR, reg); |
| 372 | } |
| 373 | |
| 374 | rtl818x_iowrite8(priv, &priv->map->MSR, 0); |
| 375 | |
| 376 | if (!priv->r8185) |
| 377 | rtl8180_set_anaparam(priv, priv->anaparam); |
| 378 | |
| 379 | rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma); |
| 380 | rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma); |
| 381 | rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma); |
| 382 | rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma); |
| 383 | rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma); |
| 384 | |
| 385 | /* TODO: necessary? specs indicate not */ |
| 386 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
| 387 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG2); |
| 388 | rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3)); |
| 389 | if (priv->r8185) { |
| 390 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG2); |
| 391 | rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4)); |
| 392 | } |
| 393 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
| 394 | |
| 395 | /* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */ |
| 396 | |
| 397 | /* TODO: turn off hw wep on rtl8180 */ |
| 398 | |
| 399 | rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0); |
| 400 | |
| 401 | if (priv->r8185) { |
| 402 | rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); |
| 403 | rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81); |
| 404 | rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0); |
| 405 | |
| 406 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); |
| 407 | |
| 408 | /* TODO: set ClkRun enable? necessary? */ |
| 409 | reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE); |
| 410 | rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6)); |
| 411 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
| 412 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); |
| 413 | rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2)); |
| 414 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
| 415 | } else { |
| 416 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1); |
| 417 | rtl818x_iowrite8(priv, &priv->map->SECURITY, 0); |
| 418 | |
| 419 | rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6); |
| 420 | rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C); |
| 421 | } |
| 422 | |
| 423 | priv->rf->init(dev); |
| 424 | if (priv->r8185) |
| 425 | rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); |
| 426 | return 0; |
| 427 | } |
| 428 | |
| 429 | static int rtl8180_init_rx_ring(struct ieee80211_hw *dev) |
| 430 | { |
| 431 | struct rtl8180_priv *priv = dev->priv; |
| 432 | struct rtl8180_rx_desc *entry; |
| 433 | int i; |
| 434 | |
| 435 | priv->rx_ring = pci_alloc_consistent(priv->pdev, |
| 436 | sizeof(*priv->rx_ring) * 32, |
| 437 | &priv->rx_ring_dma); |
| 438 | |
| 439 | if (!priv->rx_ring || (unsigned long)priv->rx_ring & 0xFF) { |
| 440 | printk(KERN_ERR "%s: Cannot allocate RX ring\n", |
| 441 | wiphy_name(dev->wiphy)); |
| 442 | return -ENOMEM; |
| 443 | } |
| 444 | |
| 445 | memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * 32); |
| 446 | priv->rx_idx = 0; |
| 447 | |
| 448 | for (i = 0; i < 32; i++) { |
| 449 | struct sk_buff *skb = dev_alloc_skb(MAX_RX_SIZE); |
| 450 | dma_addr_t *mapping; |
| 451 | entry = &priv->rx_ring[i]; |
| 452 | if (!skb) |
| 453 | return 0; |
| 454 | |
| 455 | priv->rx_buf[i] = skb; |
| 456 | mapping = (dma_addr_t *)skb->cb; |
| 457 | *mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb), |
| 458 | MAX_RX_SIZE, PCI_DMA_FROMDEVICE); |
| 459 | entry->rx_buf = cpu_to_le32(*mapping); |
| 460 | entry->flags = cpu_to_le32(RTL8180_RX_DESC_FLAG_OWN | |
| 461 | MAX_RX_SIZE); |
| 462 | } |
| 463 | entry->flags |= cpu_to_le32(RTL8180_RX_DESC_FLAG_EOR); |
| 464 | return 0; |
| 465 | } |
| 466 | |
| 467 | static void rtl8180_free_rx_ring(struct ieee80211_hw *dev) |
| 468 | { |
| 469 | struct rtl8180_priv *priv = dev->priv; |
| 470 | int i; |
| 471 | |
| 472 | for (i = 0; i < 32; i++) { |
| 473 | struct sk_buff *skb = priv->rx_buf[i]; |
| 474 | if (!skb) |
| 475 | continue; |
| 476 | |
| 477 | pci_unmap_single(priv->pdev, |
| 478 | *((dma_addr_t *)skb->cb), |
| 479 | MAX_RX_SIZE, PCI_DMA_FROMDEVICE); |
| 480 | kfree_skb(skb); |
| 481 | } |
| 482 | |
| 483 | pci_free_consistent(priv->pdev, sizeof(*priv->rx_ring) * 32, |
| 484 | priv->rx_ring, priv->rx_ring_dma); |
| 485 | priv->rx_ring = NULL; |
| 486 | } |
| 487 | |
| 488 | static int rtl8180_init_tx_ring(struct ieee80211_hw *dev, |
| 489 | unsigned int prio, unsigned int entries) |
| 490 | { |
| 491 | struct rtl8180_priv *priv = dev->priv; |
| 492 | struct rtl8180_tx_desc *ring; |
| 493 | dma_addr_t dma; |
| 494 | int i; |
| 495 | |
| 496 | ring = pci_alloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma); |
| 497 | if (!ring || (unsigned long)ring & 0xFF) { |
| 498 | printk(KERN_ERR "%s: Cannot allocate TX ring (prio = %d)\n", |
| 499 | wiphy_name(dev->wiphy), prio); |
| 500 | return -ENOMEM; |
| 501 | } |
| 502 | |
| 503 | memset(ring, 0, sizeof(*ring)*entries); |
| 504 | priv->tx_ring[prio].desc = ring; |
| 505 | priv->tx_ring[prio].dma = dma; |
| 506 | priv->tx_ring[prio].idx = 0; |
| 507 | priv->tx_ring[prio].entries = entries; |
| 508 | skb_queue_head_init(&priv->tx_ring[prio].queue); |
| 509 | |
| 510 | for (i = 0; i < entries; i++) |
| 511 | ring[i].next_tx_desc = |
| 512 | cpu_to_le32((u32)dma + ((i + 1) % entries) * sizeof(*ring)); |
| 513 | |
| 514 | return 0; |
| 515 | } |
| 516 | |
| 517 | static void rtl8180_free_tx_ring(struct ieee80211_hw *dev, unsigned int prio) |
| 518 | { |
| 519 | struct rtl8180_priv *priv = dev->priv; |
| 520 | struct rtl8180_tx_ring *ring = &priv->tx_ring[prio]; |
| 521 | |
| 522 | while (skb_queue_len(&ring->queue)) { |
| 523 | struct rtl8180_tx_desc *entry = &ring->desc[ring->idx]; |
| 524 | struct sk_buff *skb = __skb_dequeue(&ring->queue); |
| 525 | |
| 526 | pci_unmap_single(priv->pdev, le32_to_cpu(entry->tx_buf), |
| 527 | skb->len, PCI_DMA_TODEVICE); |
| 528 | kfree(*((struct ieee80211_tx_control **) skb->cb)); |
| 529 | kfree_skb(skb); |
| 530 | ring->idx = (ring->idx + 1) % ring->entries; |
| 531 | } |
| 532 | |
| 533 | pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries, |
| 534 | ring->desc, ring->dma); |
| 535 | ring->desc = NULL; |
| 536 | } |
| 537 | |
| 538 | static int rtl8180_start(struct ieee80211_hw *dev) |
| 539 | { |
| 540 | struct rtl8180_priv *priv = dev->priv; |
| 541 | int ret, i; |
| 542 | u32 reg; |
| 543 | |
| 544 | ret = rtl8180_init_rx_ring(dev); |
| 545 | if (ret) |
| 546 | return ret; |
| 547 | |
| 548 | for (i = 0; i < 4; i++) |
| 549 | if ((ret = rtl8180_init_tx_ring(dev, i, 16))) |
| 550 | goto err_free_rings; |
| 551 | |
| 552 | ret = rtl8180_init_hw(dev); |
| 553 | if (ret) |
| 554 | goto err_free_rings; |
| 555 | |
| 556 | rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma); |
| 557 | rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma); |
| 558 | rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma); |
| 559 | rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma); |
| 560 | rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma); |
| 561 | |
| 562 | ret = request_irq(priv->pdev->irq, &rtl8180_interrupt, |
| 563 | IRQF_SHARED, KBUILD_MODNAME, dev); |
| 564 | if (ret) { |
| 565 | printk(KERN_ERR "%s: failed to register IRQ handler\n", |
| 566 | wiphy_name(dev->wiphy)); |
| 567 | goto err_free_rings; |
| 568 | } |
| 569 | |
| 570 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF); |
| 571 | |
| 572 | rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0); |
| 573 | rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0); |
| 574 | |
| 575 | reg = RTL818X_RX_CONF_ONLYERLPKT | |
| 576 | RTL818X_RX_CONF_RX_AUTORESETPHY | |
| 577 | RTL818X_RX_CONF_MGMT | |
| 578 | RTL818X_RX_CONF_DATA | |
| 579 | (7 << 8 /* MAX RX DMA */) | |
| 580 | RTL818X_RX_CONF_BROADCAST | |
| 581 | RTL818X_RX_CONF_NICMAC; |
| 582 | |
| 583 | if (priv->r8185) |
| 584 | reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2; |
| 585 | else { |
| 586 | reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1) |
| 587 | ? RTL818X_RX_CONF_CSDM1 : 0; |
| 588 | reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2) |
| 589 | ? RTL818X_RX_CONF_CSDM2 : 0; |
| 590 | } |
| 591 | |
| 592 | priv->rx_conf = reg; |
| 593 | rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg); |
| 594 | |
| 595 | if (priv->r8185) { |
| 596 | reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); |
| 597 | reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT; |
| 598 | reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT; |
| 599 | rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); |
| 600 | |
| 601 | reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); |
| 602 | reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT; |
| 603 | reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT; |
| 604 | reg |= RTL818X_TX_AGC_CTL_FEEDBACK_ANT; |
| 605 | rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); |
| 606 | |
| 607 | /* disable early TX */ |
| 608 | rtl818x_iowrite8(priv, (u8 __iomem *)priv->map + 0xec, 0x3f); |
| 609 | } |
| 610 | |
| 611 | reg = rtl818x_ioread32(priv, &priv->map->TX_CONF); |
| 612 | reg |= (6 << 21 /* MAX TX DMA */) | |
| 613 | RTL818X_TX_CONF_NO_ICV; |
| 614 | |
| 615 | if (priv->r8185) |
| 616 | reg &= ~RTL818X_TX_CONF_PROBE_DTS; |
| 617 | else |
| 618 | reg &= ~RTL818X_TX_CONF_HW_SEQNUM; |
| 619 | |
| 620 | /* different meaning, same value on both rtl8185 and rtl8180 */ |
| 621 | reg &= ~RTL818X_TX_CONF_SAT_HWPLCP; |
| 622 | |
| 623 | rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); |
| 624 | |
| 625 | reg = rtl818x_ioread8(priv, &priv->map->CMD); |
| 626 | reg |= RTL818X_CMD_RX_ENABLE; |
| 627 | reg |= RTL818X_CMD_TX_ENABLE; |
| 628 | rtl818x_iowrite8(priv, &priv->map->CMD, reg); |
| 629 | |
| 630 | priv->mode = IEEE80211_IF_TYPE_MNTR; |
| 631 | return 0; |
| 632 | |
| 633 | err_free_rings: |
| 634 | rtl8180_free_rx_ring(dev); |
| 635 | for (i = 0; i < 4; i++) |
| 636 | if (priv->tx_ring[i].desc) |
| 637 | rtl8180_free_tx_ring(dev, i); |
| 638 | |
| 639 | return ret; |
| 640 | } |
| 641 | |
| 642 | static void rtl8180_stop(struct ieee80211_hw *dev) |
| 643 | { |
| 644 | struct rtl8180_priv *priv = dev->priv; |
| 645 | u8 reg; |
| 646 | int i; |
| 647 | |
| 648 | priv->mode = IEEE80211_IF_TYPE_INVALID; |
| 649 | |
| 650 | rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); |
| 651 | |
| 652 | reg = rtl818x_ioread8(priv, &priv->map->CMD); |
| 653 | reg &= ~RTL818X_CMD_TX_ENABLE; |
| 654 | reg &= ~RTL818X_CMD_RX_ENABLE; |
| 655 | rtl818x_iowrite8(priv, &priv->map->CMD, reg); |
| 656 | |
| 657 | priv->rf->stop(dev); |
| 658 | |
| 659 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
| 660 | reg = rtl818x_ioread8(priv, &priv->map->CONFIG4); |
| 661 | rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF); |
| 662 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
| 663 | |
| 664 | free_irq(priv->pdev->irq, dev); |
| 665 | |
| 666 | rtl8180_free_rx_ring(dev); |
| 667 | for (i = 0; i < 4; i++) |
| 668 | rtl8180_free_tx_ring(dev, i); |
| 669 | } |
| 670 | |
| 671 | static int rtl8180_add_interface(struct ieee80211_hw *dev, |
| 672 | struct ieee80211_if_init_conf *conf) |
| 673 | { |
| 674 | struct rtl8180_priv *priv = dev->priv; |
| 675 | |
| 676 | if (priv->mode != IEEE80211_IF_TYPE_MNTR) |
| 677 | return -EOPNOTSUPP; |
| 678 | |
| 679 | switch (conf->type) { |
| 680 | case IEEE80211_IF_TYPE_STA: |
| 681 | priv->mode = conf->type; |
| 682 | break; |
| 683 | default: |
| 684 | return -EOPNOTSUPP; |
| 685 | } |
| 686 | |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 687 | priv->vif = conf->vif; |
| 688 | |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 689 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); |
| 690 | rtl818x_iowrite32(priv, (__le32 __iomem *)&priv->map->MAC[0], |
Al Viro | 717ddc0 | 2008-03-16 22:43:06 +0000 | [diff] [blame^] | 691 | le32_to_cpu(*(__le32 *)conf->mac_addr)); |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 692 | rtl818x_iowrite16(priv, (__le16 __iomem *)&priv->map->MAC[4], |
Al Viro | 717ddc0 | 2008-03-16 22:43:06 +0000 | [diff] [blame^] | 693 | le16_to_cpu(*(__le16 *)(conf->mac_addr + 4))); |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 694 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
| 695 | |
| 696 | return 0; |
| 697 | } |
| 698 | |
| 699 | static void rtl8180_remove_interface(struct ieee80211_hw *dev, |
| 700 | struct ieee80211_if_init_conf *conf) |
| 701 | { |
| 702 | struct rtl8180_priv *priv = dev->priv; |
| 703 | priv->mode = IEEE80211_IF_TYPE_MNTR; |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 704 | priv->vif = NULL; |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 705 | } |
| 706 | |
| 707 | static int rtl8180_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) |
| 708 | { |
| 709 | struct rtl8180_priv *priv = dev->priv; |
| 710 | |
| 711 | priv->rf->set_chan(dev, conf); |
| 712 | |
| 713 | return 0; |
| 714 | } |
| 715 | |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 716 | static int rtl8180_config_interface(struct ieee80211_hw *dev, |
| 717 | struct ieee80211_vif *vif, |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 718 | struct ieee80211_if_conf *conf) |
| 719 | { |
| 720 | struct rtl8180_priv *priv = dev->priv; |
| 721 | int i; |
| 722 | |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 723 | for (i = 0; i < ETH_ALEN; i++) |
| 724 | rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]); |
| 725 | |
| 726 | if (is_valid_ether_addr(conf->bssid)) |
| 727 | rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA); |
| 728 | else |
| 729 | rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK); |
| 730 | |
| 731 | return 0; |
| 732 | } |
| 733 | |
| 734 | static void rtl8180_configure_filter(struct ieee80211_hw *dev, |
| 735 | unsigned int changed_flags, |
| 736 | unsigned int *total_flags, |
| 737 | int mc_count, struct dev_addr_list *mclist) |
| 738 | { |
| 739 | struct rtl8180_priv *priv = dev->priv; |
| 740 | |
| 741 | if (changed_flags & FIF_FCSFAIL) |
| 742 | priv->rx_conf ^= RTL818X_RX_CONF_FCS; |
| 743 | if (changed_flags & FIF_CONTROL) |
| 744 | priv->rx_conf ^= RTL818X_RX_CONF_CTRL; |
| 745 | if (changed_flags & FIF_OTHER_BSS) |
| 746 | priv->rx_conf ^= RTL818X_RX_CONF_MONITOR; |
| 747 | if (*total_flags & FIF_ALLMULTI || mc_count > 0) |
| 748 | priv->rx_conf |= RTL818X_RX_CONF_MULTICAST; |
| 749 | else |
| 750 | priv->rx_conf &= ~RTL818X_RX_CONF_MULTICAST; |
| 751 | |
| 752 | *total_flags = 0; |
| 753 | |
| 754 | if (priv->rx_conf & RTL818X_RX_CONF_FCS) |
| 755 | *total_flags |= FIF_FCSFAIL; |
| 756 | if (priv->rx_conf & RTL818X_RX_CONF_CTRL) |
| 757 | *total_flags |= FIF_CONTROL; |
| 758 | if (priv->rx_conf & RTL818X_RX_CONF_MONITOR) |
| 759 | *total_flags |= FIF_OTHER_BSS; |
| 760 | if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST) |
| 761 | *total_flags |= FIF_ALLMULTI; |
| 762 | |
| 763 | rtl818x_iowrite32(priv, &priv->map->RX_CONF, priv->rx_conf); |
| 764 | } |
| 765 | |
| 766 | static const struct ieee80211_ops rtl8180_ops = { |
| 767 | .tx = rtl8180_tx, |
| 768 | .start = rtl8180_start, |
| 769 | .stop = rtl8180_stop, |
| 770 | .add_interface = rtl8180_add_interface, |
| 771 | .remove_interface = rtl8180_remove_interface, |
| 772 | .config = rtl8180_config, |
| 773 | .config_interface = rtl8180_config_interface, |
| 774 | .configure_filter = rtl8180_configure_filter, |
| 775 | }; |
| 776 | |
| 777 | static void rtl8180_eeprom_register_read(struct eeprom_93cx6 *eeprom) |
| 778 | { |
| 779 | struct ieee80211_hw *dev = eeprom->data; |
| 780 | struct rtl8180_priv *priv = dev->priv; |
| 781 | u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); |
| 782 | |
| 783 | eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE; |
| 784 | eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ; |
| 785 | eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK; |
| 786 | eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS; |
| 787 | } |
| 788 | |
| 789 | static void rtl8180_eeprom_register_write(struct eeprom_93cx6 *eeprom) |
| 790 | { |
| 791 | struct ieee80211_hw *dev = eeprom->data; |
| 792 | struct rtl8180_priv *priv = dev->priv; |
| 793 | u8 reg = 2 << 6; |
| 794 | |
| 795 | if (eeprom->reg_data_in) |
| 796 | reg |= RTL818X_EEPROM_CMD_WRITE; |
| 797 | if (eeprom->reg_data_out) |
| 798 | reg |= RTL818X_EEPROM_CMD_READ; |
| 799 | if (eeprom->reg_data_clock) |
| 800 | reg |= RTL818X_EEPROM_CMD_CK; |
| 801 | if (eeprom->reg_chip_select) |
| 802 | reg |= RTL818X_EEPROM_CMD_CS; |
| 803 | |
| 804 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg); |
| 805 | rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); |
| 806 | udelay(10); |
| 807 | } |
| 808 | |
| 809 | static int __devinit rtl8180_probe(struct pci_dev *pdev, |
| 810 | const struct pci_device_id *id) |
| 811 | { |
| 812 | struct ieee80211_hw *dev; |
| 813 | struct rtl8180_priv *priv; |
| 814 | unsigned long mem_addr, mem_len; |
| 815 | unsigned int io_addr, io_len; |
| 816 | int err, i; |
| 817 | struct eeprom_93cx6 eeprom; |
| 818 | const char *chip_name, *rf_name = NULL; |
| 819 | u32 reg; |
| 820 | u16 eeprom_val; |
| 821 | DECLARE_MAC_BUF(mac); |
| 822 | |
| 823 | err = pci_enable_device(pdev); |
| 824 | if (err) { |
| 825 | printk(KERN_ERR "%s (rtl8180): Cannot enable new PCI device\n", |
| 826 | pci_name(pdev)); |
| 827 | return err; |
| 828 | } |
| 829 | |
| 830 | err = pci_request_regions(pdev, KBUILD_MODNAME); |
| 831 | if (err) { |
| 832 | printk(KERN_ERR "%s (rtl8180): Cannot obtain PCI resources\n", |
| 833 | pci_name(pdev)); |
| 834 | return err; |
| 835 | } |
| 836 | |
| 837 | io_addr = pci_resource_start(pdev, 0); |
| 838 | io_len = pci_resource_len(pdev, 0); |
| 839 | mem_addr = pci_resource_start(pdev, 1); |
| 840 | mem_len = pci_resource_len(pdev, 1); |
| 841 | |
| 842 | if (mem_len < sizeof(struct rtl818x_csr) || |
| 843 | io_len < sizeof(struct rtl818x_csr)) { |
| 844 | printk(KERN_ERR "%s (rtl8180): Too short PCI resources\n", |
| 845 | pci_name(pdev)); |
| 846 | err = -ENOMEM; |
| 847 | goto err_free_reg; |
| 848 | } |
| 849 | |
| 850 | if ((err = pci_set_dma_mask(pdev, 0xFFFFFF00ULL)) || |
| 851 | (err = pci_set_consistent_dma_mask(pdev, 0xFFFFFF00ULL))) { |
| 852 | printk(KERN_ERR "%s (rtl8180): No suitable DMA available\n", |
| 853 | pci_name(pdev)); |
| 854 | goto err_free_reg; |
| 855 | } |
| 856 | |
| 857 | pci_set_master(pdev); |
| 858 | |
| 859 | dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8180_ops); |
| 860 | if (!dev) { |
| 861 | printk(KERN_ERR "%s (rtl8180): ieee80211 alloc failed\n", |
| 862 | pci_name(pdev)); |
| 863 | err = -ENOMEM; |
| 864 | goto err_free_reg; |
| 865 | } |
| 866 | |
| 867 | priv = dev->priv; |
| 868 | priv->pdev = pdev; |
| 869 | |
| 870 | SET_IEEE80211_DEV(dev, &pdev->dev); |
| 871 | pci_set_drvdata(pdev, dev); |
| 872 | |
| 873 | priv->map = pci_iomap(pdev, 1, mem_len); |
| 874 | if (!priv->map) |
| 875 | priv->map = pci_iomap(pdev, 0, io_len); |
| 876 | |
| 877 | if (!priv->map) { |
| 878 | printk(KERN_ERR "%s (rtl8180): Cannot map device memory\n", |
| 879 | pci_name(pdev)); |
| 880 | goto err_free_dev; |
| 881 | } |
| 882 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 883 | BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels)); |
| 884 | BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates)); |
| 885 | |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 886 | memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels)); |
| 887 | memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates)); |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 888 | |
| 889 | priv->band.band = IEEE80211_BAND_2GHZ; |
| 890 | priv->band.channels = priv->channels; |
| 891 | priv->band.n_channels = ARRAY_SIZE(rtl818x_channels); |
| 892 | priv->band.bitrates = priv->rates; |
| 893 | priv->band.n_bitrates = 4; |
| 894 | dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; |
| 895 | |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 896 | dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | |
| 897 | IEEE80211_HW_RX_INCLUDES_FCS; |
| 898 | dev->queues = 1; |
| 899 | dev->max_rssi = 65; |
| 900 | |
| 901 | reg = rtl818x_ioread32(priv, &priv->map->TX_CONF); |
| 902 | reg &= RTL818X_TX_CONF_HWVER_MASK; |
| 903 | switch (reg) { |
| 904 | case RTL818X_TX_CONF_R8180_ABCD: |
| 905 | chip_name = "RTL8180"; |
| 906 | break; |
| 907 | case RTL818X_TX_CONF_R8180_F: |
| 908 | chip_name = "RTL8180vF"; |
| 909 | break; |
| 910 | case RTL818X_TX_CONF_R8185_ABC: |
| 911 | chip_name = "RTL8185"; |
| 912 | break; |
| 913 | case RTL818X_TX_CONF_R8185_D: |
| 914 | chip_name = "RTL8185vD"; |
| 915 | break; |
| 916 | default: |
| 917 | printk(KERN_ERR "%s (rtl8180): Unknown chip! (0x%x)\n", |
| 918 | pci_name(pdev), reg >> 25); |
| 919 | goto err_iounmap; |
| 920 | } |
| 921 | |
| 922 | priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC; |
| 923 | if (priv->r8185) { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 924 | priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates); |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 925 | pci_try_set_mwi(pdev); |
| 926 | } |
| 927 | |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 928 | eeprom.data = dev; |
| 929 | eeprom.register_read = rtl8180_eeprom_register_read; |
| 930 | eeprom.register_write = rtl8180_eeprom_register_write; |
| 931 | if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6)) |
| 932 | eeprom.width = PCI_EEPROM_WIDTH_93C66; |
| 933 | else |
| 934 | eeprom.width = PCI_EEPROM_WIDTH_93C46; |
| 935 | |
| 936 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_PROGRAM); |
| 937 | rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); |
| 938 | udelay(10); |
| 939 | |
| 940 | eeprom_93cx6_read(&eeprom, 0x06, &eeprom_val); |
| 941 | eeprom_val &= 0xFF; |
| 942 | switch (eeprom_val) { |
| 943 | case 1: rf_name = "Intersil"; |
| 944 | break; |
| 945 | case 2: rf_name = "RFMD"; |
| 946 | break; |
| 947 | case 3: priv->rf = &sa2400_rf_ops; |
| 948 | break; |
| 949 | case 4: priv->rf = &max2820_rf_ops; |
| 950 | break; |
| 951 | case 5: priv->rf = &grf5101_rf_ops; |
| 952 | break; |
| 953 | case 9: priv->rf = rtl8180_detect_rf(dev); |
| 954 | break; |
| 955 | case 10: |
| 956 | rf_name = "RTL8255"; |
| 957 | break; |
| 958 | default: |
| 959 | printk(KERN_ERR "%s (rtl8180): Unknown RF! (0x%x)\n", |
| 960 | pci_name(pdev), eeprom_val); |
| 961 | goto err_iounmap; |
| 962 | } |
| 963 | |
| 964 | if (!priv->rf) { |
| 965 | printk(KERN_ERR "%s (rtl8180): %s RF frontend not supported!\n", |
| 966 | pci_name(pdev), rf_name); |
| 967 | goto err_iounmap; |
| 968 | } |
| 969 | |
| 970 | eeprom_93cx6_read(&eeprom, 0x17, &eeprom_val); |
| 971 | priv->csthreshold = eeprom_val >> 8; |
| 972 | if (!priv->r8185) { |
| 973 | __le32 anaparam; |
| 974 | eeprom_93cx6_multiread(&eeprom, 0xD, (__le16 *)&anaparam, 2); |
| 975 | priv->anaparam = le32_to_cpu(anaparam); |
| 976 | eeprom_93cx6_read(&eeprom, 0x19, &priv->rfparam); |
| 977 | } |
| 978 | |
| 979 | eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *)dev->wiphy->perm_addr, 3); |
| 980 | if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { |
| 981 | printk(KERN_WARNING "%s (rtl8180): Invalid hwaddr! Using" |
| 982 | " randomly generated MAC addr\n", pci_name(pdev)); |
| 983 | random_ether_addr(dev->wiphy->perm_addr); |
| 984 | } |
| 985 | |
| 986 | /* CCK TX power */ |
| 987 | for (i = 0; i < 14; i += 2) { |
| 988 | u16 txpwr; |
| 989 | eeprom_93cx6_read(&eeprom, 0x10 + (i >> 1), &txpwr); |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 990 | priv->channels[i].hw_value = txpwr & 0xFF; |
| 991 | priv->channels[i + 1].hw_value = txpwr >> 8; |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 992 | } |
| 993 | |
| 994 | /* OFDM TX power */ |
| 995 | if (priv->r8185) { |
| 996 | for (i = 0; i < 14; i += 2) { |
| 997 | u16 txpwr; |
| 998 | eeprom_93cx6_read(&eeprom, 0x20 + (i >> 1), &txpwr); |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 999 | priv->channels[i].hw_value |= (txpwr & 0xFF) << 8; |
| 1000 | priv->channels[i + 1].hw_value |= txpwr & 0xFF00; |
Michael Wu | f653211 | 2007-10-14 14:43:16 -0400 | [diff] [blame] | 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); |
| 1005 | |
| 1006 | spin_lock_init(&priv->lock); |
| 1007 | |
| 1008 | err = ieee80211_register_hw(dev); |
| 1009 | if (err) { |
| 1010 | printk(KERN_ERR "%s (rtl8180): Cannot register device\n", |
| 1011 | pci_name(pdev)); |
| 1012 | goto err_iounmap; |
| 1013 | } |
| 1014 | |
| 1015 | printk(KERN_INFO "%s: hwaddr %s, %s + %s\n", |
| 1016 | wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr), |
| 1017 | chip_name, priv->rf->name); |
| 1018 | |
| 1019 | return 0; |
| 1020 | |
| 1021 | err_iounmap: |
| 1022 | iounmap(priv->map); |
| 1023 | |
| 1024 | err_free_dev: |
| 1025 | pci_set_drvdata(pdev, NULL); |
| 1026 | ieee80211_free_hw(dev); |
| 1027 | |
| 1028 | err_free_reg: |
| 1029 | pci_release_regions(pdev); |
| 1030 | pci_disable_device(pdev); |
| 1031 | return err; |
| 1032 | } |
| 1033 | |
| 1034 | static void __devexit rtl8180_remove(struct pci_dev *pdev) |
| 1035 | { |
| 1036 | struct ieee80211_hw *dev = pci_get_drvdata(pdev); |
| 1037 | struct rtl8180_priv *priv; |
| 1038 | |
| 1039 | if (!dev) |
| 1040 | return; |
| 1041 | |
| 1042 | ieee80211_unregister_hw(dev); |
| 1043 | |
| 1044 | priv = dev->priv; |
| 1045 | |
| 1046 | pci_iounmap(pdev, priv->map); |
| 1047 | pci_release_regions(pdev); |
| 1048 | pci_disable_device(pdev); |
| 1049 | ieee80211_free_hw(dev); |
| 1050 | } |
| 1051 | |
| 1052 | #ifdef CONFIG_PM |
| 1053 | static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state) |
| 1054 | { |
| 1055 | pci_save_state(pdev); |
| 1056 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 1057 | return 0; |
| 1058 | } |
| 1059 | |
| 1060 | static int rtl8180_resume(struct pci_dev *pdev) |
| 1061 | { |
| 1062 | pci_set_power_state(pdev, PCI_D0); |
| 1063 | pci_restore_state(pdev); |
| 1064 | return 0; |
| 1065 | } |
| 1066 | |
| 1067 | #endif /* CONFIG_PM */ |
| 1068 | |
| 1069 | static struct pci_driver rtl8180_driver = { |
| 1070 | .name = KBUILD_MODNAME, |
| 1071 | .id_table = rtl8180_table, |
| 1072 | .probe = rtl8180_probe, |
| 1073 | .remove = __devexit_p(rtl8180_remove), |
| 1074 | #ifdef CONFIG_PM |
| 1075 | .suspend = rtl8180_suspend, |
| 1076 | .resume = rtl8180_resume, |
| 1077 | #endif /* CONFIG_PM */ |
| 1078 | }; |
| 1079 | |
| 1080 | static int __init rtl8180_init(void) |
| 1081 | { |
| 1082 | return pci_register_driver(&rtl8180_driver); |
| 1083 | } |
| 1084 | |
| 1085 | static void __exit rtl8180_exit(void) |
| 1086 | { |
| 1087 | pci_unregister_driver(&rtl8180_driver); |
| 1088 | } |
| 1089 | |
| 1090 | module_init(rtl8180_init); |
| 1091 | module_exit(rtl8180_exit); |