Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Linux device driver for PCI based Prism54 |
| 4 | * |
| 5 | * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 6 | * Copyright (c) 2008, Christian Lamparter <chunkeey@web.de> |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 7 | * |
| 8 | * Based on the islsm (softmac prism54) driver, which is: |
| 9 | * Copyright 2004-2006 Jean-Baptiste Note <jean-baptiste.note@m4x.org>, et al. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License version 2 as |
| 13 | * published by the Free Software Foundation. |
| 14 | */ |
| 15 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 16 | #include <linux/pci.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 17 | #include <linux/slab.h> |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 18 | #include <linux/firmware.h> |
| 19 | #include <linux/etherdevice.h> |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/completion.h> |
Paul Gortmaker | 9d9779e | 2011-07-03 15:21:01 -0400 | [diff] [blame] | 22 | #include <linux/module.h> |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 23 | #include <net/mac80211.h> |
| 24 | |
| 25 | #include "p54.h" |
Christian Lamparter | d8c9210 | 2009-06-23 10:39:45 -0500 | [diff] [blame] | 26 | #include "lmac.h" |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 27 | #include "p54pci.h" |
| 28 | |
| 29 | MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); |
| 30 | MODULE_DESCRIPTION("Prism54 PCI wireless driver"); |
| 31 | MODULE_LICENSE("GPL"); |
| 32 | MODULE_ALIAS("prism54pci"); |
Christian Lamparter | 9a8675d | 2008-10-18 23:04:15 +0200 | [diff] [blame] | 33 | MODULE_FIRMWARE("isl3886pci"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 34 | |
Benoit Taine | 9baa3c3 | 2014-08-08 15:56:03 +0200 | [diff] [blame] | 35 | static const struct pci_device_id p54p_table[] = { |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 36 | /* Intersil PRISM Duette/Prism GT Wireless LAN adapter */ |
| 37 | { PCI_DEVICE(0x1260, 0x3890) }, |
| 38 | /* 3COM 3CRWE154G72 Wireless LAN adapter */ |
| 39 | { PCI_DEVICE(0x10b7, 0x6001) }, |
| 40 | /* Intersil PRISM Indigo Wireless LAN adapter */ |
| 41 | { PCI_DEVICE(0x1260, 0x3877) }, |
| 42 | /* Intersil PRISM Javelin/Xbow Wireless LAN adapter */ |
| 43 | { PCI_DEVICE(0x1260, 0x3886) }, |
Joerg Albert | 50900f1 | 2010-06-13 14:22:23 +0200 | [diff] [blame] | 44 | /* Intersil PRISM Xbow Wireless LAN adapter (Symbol AP-300) */ |
| 45 | { PCI_DEVICE(0x1260, 0xffff) }, |
Andrew Morton | 90f4dd0 | 2007-09-16 15:08:37 -0700 | [diff] [blame] | 46 | { }, |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 47 | }; |
| 48 | |
| 49 | MODULE_DEVICE_TABLE(pci, p54p_table); |
| 50 | |
| 51 | static int p54p_upload_firmware(struct ieee80211_hw *dev) |
| 52 | { |
| 53 | struct p54p_priv *priv = dev->priv; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 54 | __le32 reg; |
| 55 | int err; |
Al Viro | 8160c03 | 2007-12-21 22:02:23 -0500 | [diff] [blame] | 56 | __le32 *data; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 57 | u32 remains, left, device_addr; |
| 58 | |
Al Viro | 8160c03 | 2007-12-21 22:02:23 -0500 | [diff] [blame] | 59 | P54P_WRITE(int_enable, cpu_to_le32(0)); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 60 | P54P_READ(int_enable); |
| 61 | udelay(10); |
| 62 | |
| 63 | reg = P54P_READ(ctrl_stat); |
| 64 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| 65 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT); |
| 66 | P54P_WRITE(ctrl_stat, reg); |
| 67 | P54P_READ(ctrl_stat); |
| 68 | udelay(10); |
| 69 | |
| 70 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); |
| 71 | P54P_WRITE(ctrl_stat, reg); |
| 72 | wmb(); |
| 73 | udelay(10); |
| 74 | |
| 75 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| 76 | P54P_WRITE(ctrl_stat, reg); |
| 77 | wmb(); |
| 78 | |
Christian Lamparter | 40db0b2 | 2008-11-16 12:20:32 +0100 | [diff] [blame] | 79 | /* wait for the firmware to reset properly */ |
| 80 | mdelay(10); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 81 | |
Christian Lamparter | 40db0b2 | 2008-11-16 12:20:32 +0100 | [diff] [blame] | 82 | err = p54_parse_firmware(dev, priv->firmware); |
| 83 | if (err) |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 84 | return err; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 85 | |
Christian Lamparter | e365f16 | 2008-12-26 19:09:34 +0100 | [diff] [blame] | 86 | if (priv->common.fw_interface != FW_LM86) { |
| 87 | dev_err(&priv->pdev->dev, "wrong firmware, " |
| 88 | "please get a LM86(PCI) firmware a try again.\n"); |
| 89 | return -EINVAL; |
| 90 | } |
| 91 | |
Christian Lamparter | 40db0b2 | 2008-11-16 12:20:32 +0100 | [diff] [blame] | 92 | data = (__le32 *) priv->firmware->data; |
| 93 | remains = priv->firmware->size; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 94 | device_addr = ISL38XX_DEV_FIRMWARE_ADDR; |
| 95 | while (remains) { |
| 96 | u32 i = 0; |
| 97 | left = min((u32)0x1000, remains); |
| 98 | P54P_WRITE(direct_mem_base, cpu_to_le32(device_addr)); |
| 99 | P54P_READ(int_enable); |
| 100 | |
| 101 | device_addr += 0x1000; |
| 102 | while (i < left) { |
| 103 | P54P_WRITE(direct_mem_win[i], *data++); |
| 104 | i += sizeof(u32); |
| 105 | } |
| 106 | |
| 107 | remains -= left; |
| 108 | P54P_READ(int_enable); |
| 109 | } |
| 110 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 111 | reg = P54P_READ(ctrl_stat); |
| 112 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN); |
| 113 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| 114 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT); |
| 115 | P54P_WRITE(ctrl_stat, reg); |
| 116 | P54P_READ(ctrl_stat); |
| 117 | udelay(10); |
| 118 | |
| 119 | reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET); |
| 120 | P54P_WRITE(ctrl_stat, reg); |
| 121 | wmb(); |
| 122 | udelay(10); |
| 123 | |
| 124 | reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET); |
| 125 | P54P_WRITE(ctrl_stat, reg); |
| 126 | wmb(); |
| 127 | udelay(10); |
| 128 | |
Christian Lamparter | 7cb7707 | 2008-09-01 22:48:51 +0200 | [diff] [blame] | 129 | /* wait for the firmware to boot properly */ |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 130 | mdelay(100); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 131 | |
Christian Lamparter | 7cb7707 | 2008-09-01 22:48:51 +0200 | [diff] [blame] | 132 | return 0; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 133 | } |
| 134 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 135 | static void p54p_refill_rx_ring(struct ieee80211_hw *dev, |
| 136 | int ring_index, struct p54p_desc *ring, u32 ring_limit, |
Quintin Pitts | 5988f38 | 2010-04-09 21:37:38 +0200 | [diff] [blame] | 137 | struct sk_buff **rx_buf, u32 index) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 138 | { |
| 139 | struct p54p_priv *priv = dev->priv; |
Dmitry Torokhov | eb76bf2 | 2007-11-02 01:55:36 -0400 | [diff] [blame] | 140 | struct p54p_ring_control *ring_control = priv->ring_control; |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 141 | u32 limit, idx, i; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 142 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 143 | idx = le32_to_cpu(ring_control->host_idx[ring_index]); |
| 144 | limit = idx; |
Christian Lamparter | 103823d | 2010-04-15 14:17:07 +0200 | [diff] [blame] | 145 | limit -= index; |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 146 | limit = ring_limit - limit; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 147 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 148 | i = idx % ring_limit; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 149 | while (limit-- > 1) { |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 150 | struct p54p_desc *desc = &ring[i]; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 151 | |
| 152 | if (!desc->host_addr) { |
| 153 | struct sk_buff *skb; |
| 154 | dma_addr_t mapping; |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 155 | skb = dev_alloc_skb(priv->common.rx_mtu + 32); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 156 | if (!skb) |
| 157 | break; |
| 158 | |
| 159 | mapping = pci_map_single(priv->pdev, |
| 160 | skb_tail_pointer(skb), |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 161 | priv->common.rx_mtu + 32, |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 162 | PCI_DMA_FROMDEVICE); |
Christian Lamparter | 288c8ce | 2010-01-17 23:17:29 +0100 | [diff] [blame] | 163 | |
| 164 | if (pci_dma_mapping_error(priv->pdev, mapping)) { |
| 165 | dev_kfree_skb_any(skb); |
| 166 | dev_err(&priv->pdev->dev, |
| 167 | "RX DMA Mapping error\n"); |
| 168 | break; |
| 169 | } |
| 170 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 171 | desc->host_addr = cpu_to_le32(mapping); |
| 172 | desc->device_addr = 0; // FIXME: necessary? |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 173 | desc->len = cpu_to_le16(priv->common.rx_mtu + 32); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 174 | desc->flags = 0; |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 175 | rx_buf[i] = skb; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 176 | } |
| 177 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 178 | i++; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 179 | idx++; |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 180 | i %= ring_limit; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 181 | } |
| 182 | |
| 183 | wmb(); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 184 | ring_control->host_idx[ring_index] = cpu_to_le32(idx); |
| 185 | } |
| 186 | |
| 187 | static void p54p_check_rx_ring(struct ieee80211_hw *dev, u32 *index, |
| 188 | int ring_index, struct p54p_desc *ring, u32 ring_limit, |
| 189 | struct sk_buff **rx_buf) |
| 190 | { |
| 191 | struct p54p_priv *priv = dev->priv; |
| 192 | struct p54p_ring_control *ring_control = priv->ring_control; |
| 193 | struct p54p_desc *desc; |
| 194 | u32 idx, i; |
| 195 | |
| 196 | i = (*index) % ring_limit; |
| 197 | (*index) = idx = le32_to_cpu(ring_control->device_idx[ring_index]); |
| 198 | idx %= ring_limit; |
| 199 | while (i != idx) { |
| 200 | u16 len; |
| 201 | struct sk_buff *skb; |
Christian Lamparter | 0bf719d | 2011-02-11 01:48:42 +0100 | [diff] [blame] | 202 | dma_addr_t dma_addr; |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 203 | desc = &ring[i]; |
| 204 | len = le16_to_cpu(desc->len); |
| 205 | skb = rx_buf[i]; |
| 206 | |
Christian Lamparter | 0c25970 | 2008-08-31 22:15:40 +0200 | [diff] [blame] | 207 | if (!skb) { |
| 208 | i++; |
| 209 | i %= ring_limit; |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 210 | continue; |
Christian Lamparter | 0c25970 | 2008-08-31 22:15:40 +0200 | [diff] [blame] | 211 | } |
Christian Lamparter | f5300e0 | 2010-01-18 00:07:38 +0100 | [diff] [blame] | 212 | |
| 213 | if (unlikely(len > priv->common.rx_mtu)) { |
| 214 | if (net_ratelimit()) |
| 215 | dev_err(&priv->pdev->dev, "rx'd frame size " |
| 216 | "exceeds length threshold.\n"); |
| 217 | |
| 218 | len = priv->common.rx_mtu; |
| 219 | } |
Christian Lamparter | 0bf719d | 2011-02-11 01:48:42 +0100 | [diff] [blame] | 220 | dma_addr = le32_to_cpu(desc->host_addr); |
| 221 | pci_dma_sync_single_for_cpu(priv->pdev, dma_addr, |
| 222 | priv->common.rx_mtu + 32, PCI_DMA_FROMDEVICE); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 223 | skb_put(skb, len); |
| 224 | |
| 225 | if (p54_rx(dev, skb)) { |
Christian Lamparter | 0bf719d | 2011-02-11 01:48:42 +0100 | [diff] [blame] | 226 | pci_unmap_single(priv->pdev, dma_addr, |
| 227 | priv->common.rx_mtu + 32, PCI_DMA_FROMDEVICE); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 228 | rx_buf[i] = NULL; |
Christian Lamparter | 0bf719d | 2011-02-11 01:48:42 +0100 | [diff] [blame] | 229 | desc->host_addr = cpu_to_le32(0); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 230 | } else { |
| 231 | skb_trim(skb, 0); |
Christian Lamparter | 0bf719d | 2011-02-11 01:48:42 +0100 | [diff] [blame] | 232 | pci_dma_sync_single_for_device(priv->pdev, dma_addr, |
| 233 | priv->common.rx_mtu + 32, PCI_DMA_FROMDEVICE); |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 234 | desc->len = cpu_to_le16(priv->common.rx_mtu + 32); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 235 | } |
| 236 | |
| 237 | i++; |
| 238 | i %= ring_limit; |
| 239 | } |
| 240 | |
Quintin Pitts | 5988f38 | 2010-04-09 21:37:38 +0200 | [diff] [blame] | 241 | p54p_refill_rx_ring(dev, ring_index, ring, ring_limit, rx_buf, *index); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 242 | } |
| 243 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 244 | static void p54p_check_tx_ring(struct ieee80211_hw *dev, u32 *index, |
| 245 | int ring_index, struct p54p_desc *ring, u32 ring_limit, |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 246 | struct sk_buff **tx_buf) |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 247 | { |
| 248 | struct p54p_priv *priv = dev->priv; |
| 249 | struct p54p_ring_control *ring_control = priv->ring_control; |
| 250 | struct p54p_desc *desc; |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 251 | struct sk_buff *skb; |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 252 | u32 idx, i; |
| 253 | |
| 254 | i = (*index) % ring_limit; |
Hans de Goede | 0250ece | 2010-04-22 19:52:16 +0200 | [diff] [blame] | 255 | (*index) = idx = le32_to_cpu(ring_control->device_idx[ring_index]); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 256 | idx %= ring_limit; |
| 257 | |
| 258 | while (i != idx) { |
| 259 | desc = &ring[i]; |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 260 | |
| 261 | skb = tx_buf[i]; |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 262 | tx_buf[i] = NULL; |
| 263 | |
| 264 | pci_unmap_single(priv->pdev, le32_to_cpu(desc->host_addr), |
| 265 | le16_to_cpu(desc->len), PCI_DMA_TODEVICE); |
| 266 | |
| 267 | desc->host_addr = 0; |
| 268 | desc->device_addr = 0; |
| 269 | desc->len = 0; |
| 270 | desc->flags = 0; |
| 271 | |
Christian Lamparter | b92f7d3 | 2010-01-22 08:01:11 +0100 | [diff] [blame] | 272 | if (skb && FREE_AFTER_TX(skb)) |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 273 | p54_free_skb(dev, skb); |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 274 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 275 | i++; |
| 276 | i %= ring_limit; |
| 277 | } |
| 278 | } |
| 279 | |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 280 | static void p54p_tasklet(unsigned long dev_id) |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 281 | { |
| 282 | struct ieee80211_hw *dev = (struct ieee80211_hw *)dev_id; |
| 283 | struct p54p_priv *priv = dev->priv; |
| 284 | struct p54p_ring_control *ring_control = priv->ring_control; |
| 285 | |
Hans de Goede | d4cde88 | 2010-04-22 19:52:43 +0200 | [diff] [blame] | 286 | p54p_check_tx_ring(dev, &priv->tx_idx_mgmt, 3, ring_control->tx_mgmt, |
| 287 | ARRAY_SIZE(ring_control->tx_mgmt), |
| 288 | priv->tx_buf_mgmt); |
| 289 | |
| 290 | p54p_check_tx_ring(dev, &priv->tx_idx_data, 1, ring_control->tx_data, |
| 291 | ARRAY_SIZE(ring_control->tx_data), |
| 292 | priv->tx_buf_data); |
| 293 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 294 | p54p_check_rx_ring(dev, &priv->rx_idx_mgmt, 2, ring_control->rx_mgmt, |
| 295 | ARRAY_SIZE(ring_control->rx_mgmt), priv->rx_buf_mgmt); |
| 296 | |
| 297 | p54p_check_rx_ring(dev, &priv->rx_idx_data, 0, ring_control->rx_data, |
| 298 | ARRAY_SIZE(ring_control->rx_data), priv->rx_buf_data); |
| 299 | |
| 300 | wmb(); |
| 301 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE)); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 302 | } |
| 303 | |
| 304 | static irqreturn_t p54p_interrupt(int irq, void *dev_id) |
| 305 | { |
| 306 | struct ieee80211_hw *dev = dev_id; |
| 307 | struct p54p_priv *priv = dev->priv; |
| 308 | __le32 reg; |
| 309 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 310 | reg = P54P_READ(int_ident); |
Al Viro | 8160c03 | 2007-12-21 22:02:23 -0500 | [diff] [blame] | 311 | if (unlikely(reg == cpu_to_le32(0xFFFFFFFF))) { |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 312 | goto out; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 313 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 314 | P54P_WRITE(int_ack, reg); |
| 315 | |
| 316 | reg &= P54P_READ(int_enable); |
| 317 | |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 318 | if (reg & cpu_to_le32(ISL38XX_INT_IDENT_UPDATE)) |
| 319 | tasklet_schedule(&priv->tasklet); |
| 320 | else if (reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 321 | complete(&priv->boot_comp); |
| 322 | |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 323 | out: |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 324 | return reg ? IRQ_HANDLED : IRQ_NONE; |
| 325 | } |
| 326 | |
Christian Lamparter | 0a5ec96 | 2008-12-14 15:05:42 +0100 | [diff] [blame] | 327 | static void p54p_tx(struct ieee80211_hw *dev, struct sk_buff *skb) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 328 | { |
Christian Lamparter | b92f7d3 | 2010-01-22 08:01:11 +0100 | [diff] [blame] | 329 | unsigned long flags; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 330 | struct p54p_priv *priv = dev->priv; |
Dmitry Torokhov | eb76bf2 | 2007-11-02 01:55:36 -0400 | [diff] [blame] | 331 | struct p54p_ring_control *ring_control = priv->ring_control; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 332 | struct p54p_desc *desc; |
| 333 | dma_addr_t mapping; |
Christian Lamparter | 1816fcd | 2011-05-07 11:16:08 +0200 | [diff] [blame] | 334 | u32 idx, i; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 335 | |
| 336 | spin_lock_irqsave(&priv->lock, flags); |
Dmitry Torokhov | eb76bf2 | 2007-11-02 01:55:36 -0400 | [diff] [blame] | 337 | idx = le32_to_cpu(ring_control->host_idx[1]); |
| 338 | i = idx % ARRAY_SIZE(ring_control->tx_data); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 339 | |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 340 | mapping = pci_map_single(priv->pdev, skb->data, skb->len, |
| 341 | PCI_DMA_TODEVICE); |
Christian Lamparter | 288c8ce | 2010-01-17 23:17:29 +0100 | [diff] [blame] | 342 | if (pci_dma_mapping_error(priv->pdev, mapping)) { |
| 343 | spin_unlock_irqrestore(&priv->lock, flags); |
| 344 | p54_free_skb(dev, skb); |
| 345 | dev_err(&priv->pdev->dev, "TX DMA mapping error\n"); |
| 346 | return ; |
| 347 | } |
| 348 | priv->tx_buf_data[i] = skb; |
| 349 | |
Dmitry Torokhov | eb76bf2 | 2007-11-02 01:55:36 -0400 | [diff] [blame] | 350 | desc = &ring_control->tx_data[i]; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 351 | desc->host_addr = cpu_to_le32(mapping); |
John W. Linville | 27df605 | 2008-10-22 16:41:55 -0400 | [diff] [blame] | 352 | desc->device_addr = ((struct p54_hdr *)skb->data)->req_id; |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 353 | desc->len = cpu_to_le16(skb->len); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 354 | desc->flags = 0; |
| 355 | |
| 356 | wmb(); |
Dmitry Torokhov | eb76bf2 | 2007-11-02 01:55:36 -0400 | [diff] [blame] | 357 | ring_control->host_idx[1] = cpu_to_le32(idx + 1); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 358 | spin_unlock_irqrestore(&priv->lock, flags); |
| 359 | |
| 360 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE)); |
| 361 | P54P_READ(dev_int); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 362 | } |
| 363 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 364 | static void p54p_stop(struct ieee80211_hw *dev) |
| 365 | { |
| 366 | struct p54p_priv *priv = dev->priv; |
Dmitry Torokhov | eb76bf2 | 2007-11-02 01:55:36 -0400 | [diff] [blame] | 367 | struct p54p_ring_control *ring_control = priv->ring_control; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 368 | unsigned int i; |
| 369 | struct p54p_desc *desc; |
| 370 | |
Al Viro | 8160c03 | 2007-12-21 22:02:23 -0500 | [diff] [blame] | 371 | P54P_WRITE(int_enable, cpu_to_le32(0)); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 372 | P54P_READ(int_enable); |
| 373 | udelay(10); |
| 374 | |
| 375 | free_irq(priv->pdev->irq, dev); |
| 376 | |
Christian Lamparter | b92f7d3 | 2010-01-22 08:01:11 +0100 | [diff] [blame] | 377 | tasklet_kill(&priv->tasklet); |
| 378 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 379 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET)); |
| 380 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 381 | for (i = 0; i < ARRAY_SIZE(priv->rx_buf_data); i++) { |
Dmitry Torokhov | eb76bf2 | 2007-11-02 01:55:36 -0400 | [diff] [blame] | 382 | desc = &ring_control->rx_data[i]; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 383 | if (desc->host_addr) |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 384 | pci_unmap_single(priv->pdev, |
| 385 | le32_to_cpu(desc->host_addr), |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 386 | priv->common.rx_mtu + 32, |
| 387 | PCI_DMA_FROMDEVICE); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 388 | kfree_skb(priv->rx_buf_data[i]); |
| 389 | priv->rx_buf_data[i] = NULL; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 390 | } |
| 391 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 392 | for (i = 0; i < ARRAY_SIZE(priv->rx_buf_mgmt); i++) { |
| 393 | desc = &ring_control->rx_mgmt[i]; |
| 394 | if (desc->host_addr) |
| 395 | pci_unmap_single(priv->pdev, |
| 396 | le32_to_cpu(desc->host_addr), |
Christian Lamparter | 4e416a6 | 2008-09-01 22:48:41 +0200 | [diff] [blame] | 397 | priv->common.rx_mtu + 32, |
| 398 | PCI_DMA_FROMDEVICE); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 399 | kfree_skb(priv->rx_buf_mgmt[i]); |
| 400 | priv->rx_buf_mgmt[i] = NULL; |
| 401 | } |
| 402 | |
| 403 | for (i = 0; i < ARRAY_SIZE(priv->tx_buf_data); i++) { |
Dmitry Torokhov | eb76bf2 | 2007-11-02 01:55:36 -0400 | [diff] [blame] | 404 | desc = &ring_control->tx_data[i]; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 405 | if (desc->host_addr) |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 406 | pci_unmap_single(priv->pdev, |
| 407 | le32_to_cpu(desc->host_addr), |
| 408 | le16_to_cpu(desc->len), |
| 409 | PCI_DMA_TODEVICE); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 410 | |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 411 | p54_free_skb(dev, priv->tx_buf_data[i]); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 412 | priv->tx_buf_data[i] = NULL; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 413 | } |
| 414 | |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 415 | for (i = 0; i < ARRAY_SIZE(priv->tx_buf_mgmt); i++) { |
| 416 | desc = &ring_control->tx_mgmt[i]; |
| 417 | if (desc->host_addr) |
| 418 | pci_unmap_single(priv->pdev, |
| 419 | le32_to_cpu(desc->host_addr), |
| 420 | le16_to_cpu(desc->len), |
| 421 | PCI_DMA_TODEVICE); |
| 422 | |
Christian Lamparter | b92f30d | 2008-10-15 04:07:16 +0200 | [diff] [blame] | 423 | p54_free_skb(dev, priv->tx_buf_mgmt[i]); |
Christian Lamparter | 7262d59 | 2008-08-24 22:30:38 +0200 | [diff] [blame] | 424 | priv->tx_buf_mgmt[i] = NULL; |
| 425 | } |
| 426 | |
| 427 | memset(ring_control, 0, sizeof(*ring_control)); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 428 | } |
| 429 | |
Christian Lamparter | 3596162 | 2008-10-22 14:19:56 +0200 | [diff] [blame] | 430 | static int p54p_open(struct ieee80211_hw *dev) |
| 431 | { |
| 432 | struct p54p_priv *priv = dev->priv; |
| 433 | int err; |
Nicholas Mc Guire | 961d1bbe | 2015-01-20 06:26:17 +0100 | [diff] [blame] | 434 | long timeout; |
Christian Lamparter | 3596162 | 2008-10-22 14:19:56 +0200 | [diff] [blame] | 435 | |
| 436 | init_completion(&priv->boot_comp); |
Julia Lawall | 8fbd90b | 2009-11-18 08:25:43 +0000 | [diff] [blame] | 437 | err = request_irq(priv->pdev->irq, p54p_interrupt, |
Christian Lamparter | 3596162 | 2008-10-22 14:19:56 +0200 | [diff] [blame] | 438 | IRQF_SHARED, "p54pci", dev); |
| 439 | if (err) { |
Christian Lamparter | ad5e72e | 2009-03-05 21:30:37 +0100 | [diff] [blame] | 440 | dev_err(&priv->pdev->dev, "failed to register IRQ handler\n"); |
Christian Lamparter | 3596162 | 2008-10-22 14:19:56 +0200 | [diff] [blame] | 441 | return err; |
| 442 | } |
| 443 | |
| 444 | memset(priv->ring_control, 0, sizeof(*priv->ring_control)); |
| 445 | err = p54p_upload_firmware(dev); |
| 446 | if (err) { |
| 447 | free_irq(priv->pdev->irq, dev); |
| 448 | return err; |
| 449 | } |
| 450 | priv->rx_idx_data = priv->tx_idx_data = 0; |
| 451 | priv->rx_idx_mgmt = priv->tx_idx_mgmt = 0; |
| 452 | |
| 453 | p54p_refill_rx_ring(dev, 0, priv->ring_control->rx_data, |
Quintin Pitts | 5988f38 | 2010-04-09 21:37:38 +0200 | [diff] [blame] | 454 | ARRAY_SIZE(priv->ring_control->rx_data), priv->rx_buf_data, 0); |
Christian Lamparter | 3596162 | 2008-10-22 14:19:56 +0200 | [diff] [blame] | 455 | |
| 456 | p54p_refill_rx_ring(dev, 2, priv->ring_control->rx_mgmt, |
Quintin Pitts | 5988f38 | 2010-04-09 21:37:38 +0200 | [diff] [blame] | 457 | ARRAY_SIZE(priv->ring_control->rx_mgmt), priv->rx_buf_mgmt, 0); |
Christian Lamparter | 3596162 | 2008-10-22 14:19:56 +0200 | [diff] [blame] | 458 | |
| 459 | P54P_WRITE(ring_control_base, cpu_to_le32(priv->ring_control_dma)); |
| 460 | P54P_READ(ring_control_base); |
| 461 | wmb(); |
| 462 | udelay(10); |
| 463 | |
| 464 | P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_INIT)); |
| 465 | P54P_READ(int_enable); |
| 466 | wmb(); |
| 467 | udelay(10); |
| 468 | |
| 469 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET)); |
| 470 | P54P_READ(dev_int); |
| 471 | |
Nicholas Mc Guire | 961d1bbe | 2015-01-20 06:26:17 +0100 | [diff] [blame] | 472 | timeout = wait_for_completion_interruptible_timeout( |
| 473 | &priv->boot_comp, HZ); |
| 474 | if (timeout <= 0) { |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 475 | wiphy_err(dev->wiphy, "Cannot boot firmware!\n"); |
Christian Lamparter | 3596162 | 2008-10-22 14:19:56 +0200 | [diff] [blame] | 476 | p54p_stop(dev); |
Nicholas Mc Guire | 961d1bbe | 2015-01-20 06:26:17 +0100 | [diff] [blame] | 477 | return timeout ? -ERESTARTSYS : -ETIMEDOUT; |
Christian Lamparter | 3596162 | 2008-10-22 14:19:56 +0200 | [diff] [blame] | 478 | } |
| 479 | |
| 480 | P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_UPDATE)); |
| 481 | P54P_READ(int_enable); |
| 482 | wmb(); |
| 483 | udelay(10); |
| 484 | |
| 485 | P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE)); |
| 486 | P54P_READ(dev_int); |
| 487 | wmb(); |
| 488 | udelay(10); |
| 489 | |
| 490 | return 0; |
| 491 | } |
| 492 | |
Larry Finger | 95a96e0 | 2012-07-24 21:16:42 +0200 | [diff] [blame] | 493 | static void p54p_firmware_step2(const struct firmware *fw, |
| 494 | void *context) |
| 495 | { |
| 496 | struct p54p_priv *priv = context; |
| 497 | struct ieee80211_hw *dev = priv->common.hw; |
| 498 | struct pci_dev *pdev = priv->pdev; |
| 499 | int err; |
| 500 | |
| 501 | if (!fw) { |
| 502 | dev_err(&pdev->dev, "Cannot find firmware (isl3886pci)\n"); |
| 503 | err = -ENOENT; |
| 504 | goto out; |
| 505 | } |
| 506 | |
| 507 | priv->firmware = fw; |
| 508 | |
| 509 | err = p54p_open(dev); |
| 510 | if (err) |
| 511 | goto out; |
| 512 | err = p54_read_eeprom(dev); |
| 513 | p54p_stop(dev); |
| 514 | if (err) |
| 515 | goto out; |
| 516 | |
| 517 | err = p54_register_common(dev, &pdev->dev); |
| 518 | if (err) |
| 519 | goto out; |
| 520 | |
| 521 | out: |
| 522 | |
| 523 | complete(&priv->fw_loaded); |
| 524 | |
| 525 | if (err) { |
| 526 | struct device *parent = pdev->dev.parent; |
| 527 | |
| 528 | if (parent) |
| 529 | device_lock(parent); |
| 530 | |
| 531 | /* |
| 532 | * This will indirectly result in a call to p54p_remove. |
| 533 | * Hence, we don't need to bother with freeing any |
| 534 | * allocated ressources at all. |
| 535 | */ |
| 536 | device_release_driver(&pdev->dev); |
| 537 | |
| 538 | if (parent) |
| 539 | device_unlock(parent); |
| 540 | } |
| 541 | |
| 542 | pci_dev_put(pdev); |
| 543 | } |
| 544 | |
Bill Pemberton | 337b563 | 2012-12-03 09:56:38 -0500 | [diff] [blame] | 545 | static int p54p_probe(struct pci_dev *pdev, |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 546 | const struct pci_device_id *id) |
| 547 | { |
| 548 | struct p54p_priv *priv; |
| 549 | struct ieee80211_hw *dev; |
| 550 | unsigned long mem_addr, mem_len; |
| 551 | int err; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 552 | |
Larry Finger | 95a96e0 | 2012-07-24 21:16:42 +0200 | [diff] [blame] | 553 | pci_dev_get(pdev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 554 | err = pci_enable_device(pdev); |
| 555 | if (err) { |
Christian Lamparter | ad5e72e | 2009-03-05 21:30:37 +0100 | [diff] [blame] | 556 | dev_err(&pdev->dev, "Cannot enable new PCI device\n"); |
Pan Bian | 8149069 | 2019-04-17 17:41:23 +0800 | [diff] [blame] | 557 | goto err_put; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 558 | } |
| 559 | |
| 560 | mem_addr = pci_resource_start(pdev, 0); |
| 561 | mem_len = pci_resource_len(pdev, 0); |
| 562 | if (mem_len < sizeof(struct p54p_csr)) { |
Christian Lamparter | ad5e72e | 2009-03-05 21:30:37 +0100 | [diff] [blame] | 563 | dev_err(&pdev->dev, "Too short PCI resources\n"); |
Alexey Khoroshilov | 6960af6 | 2013-01-03 00:06:47 +0400 | [diff] [blame] | 564 | err = -ENODEV; |
Christian Lamparter | 40db0b2 | 2008-11-16 12:20:32 +0100 | [diff] [blame] | 565 | goto err_disable_dev; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 566 | } |
| 567 | |
Christian Lamparter | 32ddf07 | 2008-08-08 21:17:37 +0200 | [diff] [blame] | 568 | err = pci_request_regions(pdev, "p54pci"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 569 | if (err) { |
Christian Lamparter | ad5e72e | 2009-03-05 21:30:37 +0100 | [diff] [blame] | 570 | dev_err(&pdev->dev, "Cannot obtain PCI resources\n"); |
Christian Lamparter | 40db0b2 | 2008-11-16 12:20:32 +0100 | [diff] [blame] | 571 | goto err_disable_dev; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 572 | } |
| 573 | |
Alexey Khoroshilov | 6960af6 | 2013-01-03 00:06:47 +0400 | [diff] [blame] | 574 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 575 | if (!err) |
| 576 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 577 | if (err) { |
Christian Lamparter | ad5e72e | 2009-03-05 21:30:37 +0100 | [diff] [blame] | 578 | dev_err(&pdev->dev, "No suitable DMA available\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 579 | goto err_free_reg; |
| 580 | } |
| 581 | |
| 582 | pci_set_master(pdev); |
| 583 | pci_try_set_mwi(pdev); |
| 584 | |
| 585 | pci_write_config_byte(pdev, 0x40, 0); |
| 586 | pci_write_config_byte(pdev, 0x41, 0); |
| 587 | |
| 588 | dev = p54_init_common(sizeof(*priv)); |
| 589 | if (!dev) { |
Christian Lamparter | ad5e72e | 2009-03-05 21:30:37 +0100 | [diff] [blame] | 590 | dev_err(&pdev->dev, "ieee80211 alloc failed\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 591 | err = -ENOMEM; |
| 592 | goto err_free_reg; |
| 593 | } |
| 594 | |
| 595 | priv = dev->priv; |
| 596 | priv->pdev = pdev; |
| 597 | |
Larry Finger | 95a96e0 | 2012-07-24 21:16:42 +0200 | [diff] [blame] | 598 | init_completion(&priv->fw_loaded); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 599 | SET_IEEE80211_DEV(dev, &pdev->dev); |
| 600 | pci_set_drvdata(pdev, dev); |
| 601 | |
| 602 | priv->map = ioremap(mem_addr, mem_len); |
| 603 | if (!priv->map) { |
Christian Lamparter | ad5e72e | 2009-03-05 21:30:37 +0100 | [diff] [blame] | 604 | dev_err(&pdev->dev, "Cannot map device memory\n"); |
| 605 | err = -ENOMEM; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 606 | goto err_free_dev; |
| 607 | } |
| 608 | |
| 609 | priv->ring_control = pci_alloc_consistent(pdev, sizeof(*priv->ring_control), |
| 610 | &priv->ring_control_dma); |
| 611 | if (!priv->ring_control) { |
Christian Lamparter | ad5e72e | 2009-03-05 21:30:37 +0100 | [diff] [blame] | 612 | dev_err(&pdev->dev, "Cannot allocate rings\n"); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 613 | err = -ENOMEM; |
| 614 | goto err_iounmap; |
| 615 | } |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 616 | priv->common.open = p54p_open; |
| 617 | priv->common.stop = p54p_stop; |
| 618 | priv->common.tx = p54p_tx; |
| 619 | |
| 620 | spin_lock_init(&priv->lock); |
Christian Lamparter | d713804 | 2010-01-17 23:19:25 +0100 | [diff] [blame] | 621 | tasklet_init(&priv->tasklet, p54p_tasklet, (unsigned long)dev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 622 | |
Larry Finger | 95a96e0 | 2012-07-24 21:16:42 +0200 | [diff] [blame] | 623 | err = request_firmware_nowait(THIS_MODULE, 1, "isl3886pci", |
| 624 | &priv->pdev->dev, GFP_KERNEL, |
| 625 | priv, p54p_firmware_step2); |
| 626 | if (!err) |
| 627 | return 0; |
Christian Lamparter | 40db0b2 | 2008-11-16 12:20:32 +0100 | [diff] [blame] | 628 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 629 | pci_free_consistent(pdev, sizeof(*priv->ring_control), |
| 630 | priv->ring_control, priv->ring_control_dma); |
| 631 | |
| 632 | err_iounmap: |
| 633 | iounmap(priv->map); |
| 634 | |
| 635 | err_free_dev: |
Christian Lamparter | d8c9210 | 2009-06-23 10:39:45 -0500 | [diff] [blame] | 636 | p54_free_common(dev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 637 | |
| 638 | err_free_reg: |
| 639 | pci_release_regions(pdev); |
Christian Lamparter | 40db0b2 | 2008-11-16 12:20:32 +0100 | [diff] [blame] | 640 | err_disable_dev: |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 641 | pci_disable_device(pdev); |
Pan Bian | 8149069 | 2019-04-17 17:41:23 +0800 | [diff] [blame] | 642 | err_put: |
Larry Finger | 95a96e0 | 2012-07-24 21:16:42 +0200 | [diff] [blame] | 643 | pci_dev_put(pdev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 644 | return err; |
| 645 | } |
| 646 | |
Bill Pemberton | 337b563 | 2012-12-03 09:56:38 -0500 | [diff] [blame] | 647 | static void p54p_remove(struct pci_dev *pdev) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 648 | { |
| 649 | struct ieee80211_hw *dev = pci_get_drvdata(pdev); |
| 650 | struct p54p_priv *priv; |
| 651 | |
| 652 | if (!dev) |
| 653 | return; |
| 654 | |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 655 | priv = dev->priv; |
Larry Finger | 95a96e0 | 2012-07-24 21:16:42 +0200 | [diff] [blame] | 656 | wait_for_completion(&priv->fw_loaded); |
| 657 | p54_unregister_common(dev); |
Christian Lamparter | 40db0b2 | 2008-11-16 12:20:32 +0100 | [diff] [blame] | 658 | release_firmware(priv->firmware); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 659 | pci_free_consistent(pdev, sizeof(*priv->ring_control), |
| 660 | priv->ring_control, priv->ring_control_dma); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 661 | iounmap(priv->map); |
| 662 | pci_release_regions(pdev); |
| 663 | pci_disable_device(pdev); |
Christian Lamparter | d8c9210 | 2009-06-23 10:39:45 -0500 | [diff] [blame] | 664 | p54_free_common(dev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 665 | } |
| 666 | |
Hauke Mehrtens | 8882349 | 2012-11-29 23:27:16 +0100 | [diff] [blame] | 667 | #ifdef CONFIG_PM_SLEEP |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 668 | static int p54p_suspend(struct device *device) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 669 | { |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 670 | struct pci_dev *pdev = to_pci_dev(device); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 671 | |
| 672 | pci_save_state(pdev); |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 673 | pci_set_power_state(pdev, PCI_D3hot); |
| 674 | pci_disable_device(pdev); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 675 | return 0; |
| 676 | } |
| 677 | |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 678 | static int p54p_resume(struct device *device) |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 679 | { |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 680 | struct pci_dev *pdev = to_pci_dev(device); |
| 681 | int err; |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 682 | |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 683 | err = pci_reenable_device(pdev); |
| 684 | if (err) |
| 685 | return err; |
| 686 | return pci_set_power_state(pdev, PCI_D0); |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 687 | } |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 688 | |
Hauke Mehrtens | 8882349 | 2012-11-29 23:27:16 +0100 | [diff] [blame] | 689 | static SIMPLE_DEV_PM_OPS(p54pci_pm_ops, p54p_suspend, p54p_resume); |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 690 | |
| 691 | #define P54P_PM_OPS (&p54pci_pm_ops) |
| 692 | #else |
| 693 | #define P54P_PM_OPS (NULL) |
Hauke Mehrtens | 8882349 | 2012-11-29 23:27:16 +0100 | [diff] [blame] | 694 | #endif /* CONFIG_PM_SLEEP */ |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 695 | |
| 696 | static struct pci_driver p54p_driver = { |
Christian Lamparter | 32ddf07 | 2008-08-08 21:17:37 +0200 | [diff] [blame] | 697 | .name = "p54pci", |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 698 | .id_table = p54p_table, |
| 699 | .probe = p54p_probe, |
Bill Pemberton | 337b563 | 2012-12-03 09:56:38 -0500 | [diff] [blame] | 700 | .remove = p54p_remove, |
Christian Lamparter | 2662768 | 2012-03-03 21:25:19 +0100 | [diff] [blame] | 701 | .driver.pm = P54P_PM_OPS, |
Michael Wu | eff1a59 | 2007-09-25 18:11:01 -0700 | [diff] [blame] | 702 | }; |
| 703 | |
Axel Lin | 5b0a3b7 | 2012-04-14 10:38:36 +0800 | [diff] [blame] | 704 | module_pci_driver(p54p_driver); |