David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ASIX AX8817X based USB 2.0 Ethernet Devices |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 3 | * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com> |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 4 | * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 5 | * Copyright (C) 2006 James Painter <jamie.painter@iname.com> |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 6 | * Copyright (c) 2002-2003 TiVo Inc. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
Jeff Kirsher | 9cb0007 | 2013-12-06 06:28:46 -0800 | [diff] [blame] | 19 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 20 | */ |
| 21 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 22 | #include "asix.h" |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 23 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 24 | int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 25 | u16 size, void *data, int in_pm) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 26 | { |
Ming Lei | 0bc69ef | 2012-10-24 19:46:55 +0000 | [diff] [blame] | 27 | int ret; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 28 | int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16); |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 29 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 30 | BUG_ON(!dev); |
| 31 | |
| 32 | if (!in_pm) |
| 33 | fn = usbnet_read_cmd; |
| 34 | else |
| 35 | fn = usbnet_read_cmd_nopm; |
| 36 | |
| 37 | ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 38 | value, index, data, size); |
| 39 | |
| 40 | if (unlikely(ret < 0)) |
| 41 | netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n", |
| 42 | index, ret); |
| 43 | |
Ming Lei | 0bc69ef | 2012-10-24 19:46:55 +0000 | [diff] [blame] | 44 | return ret; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 45 | } |
| 46 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 47 | int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 48 | u16 size, void *data, int in_pm) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 49 | { |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 50 | int ret; |
| 51 | int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16); |
| 52 | |
| 53 | BUG_ON(!dev); |
| 54 | |
| 55 | if (!in_pm) |
| 56 | fn = usbnet_write_cmd; |
| 57 | else |
| 58 | fn = usbnet_write_cmd_nopm; |
| 59 | |
| 60 | ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 61 | value, index, data, size); |
| 62 | |
| 63 | if (unlikely(ret < 0)) |
| 64 | netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n", |
| 65 | index, ret); |
| 66 | |
| 67 | return ret; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 68 | } |
| 69 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 70 | void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
| 71 | u16 size, void *data) |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 72 | { |
Ming Lei | 0bc69ef | 2012-10-24 19:46:55 +0000 | [diff] [blame] | 73 | usbnet_write_cmd_async(dev, cmd, |
| 74 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 75 | value, index, data, size); |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 76 | } |
| 77 | |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 78 | int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb, |
| 79 | struct asix_rx_fixup_info *rx) |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 80 | { |
Eric Dumazet | a9e0aca | 2012-03-14 20:18:32 +0000 | [diff] [blame] | 81 | int offset = 0; |
Dean Jenkins | 7b0378f | 2015-10-02 14:29:04 +0100 | [diff] [blame] | 82 | u16 size; |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 83 | |
Dean Jenkins | 3f30b15 | 2015-10-02 14:29:07 +0100 | [diff] [blame] | 84 | /* When an Ethernet frame spans multiple URB socket buffers, |
| 85 | * do a sanity test for the Data header synchronisation. |
| 86 | * Attempt to detect the situation of the previous socket buffer having |
| 87 | * been truncated or a socket buffer was missing. These situations |
| 88 | * cause a discontinuity in the data stream and therefore need to avoid |
| 89 | * appending bad data to the end of the current netdev socket buffer. |
| 90 | * Also avoid unnecessarily discarding a good current netdev socket |
| 91 | * buffer. |
| 92 | */ |
| 93 | if (rx->remaining && (rx->remaining + sizeof(u32) <= skb->len)) { |
John Stultz | cd9e2e5 | 2016-05-16 20:36:15 -0700 | [diff] [blame] | 94 | offset = ((rx->remaining + 1) & 0xfffe); |
Dean Jenkins | 3f30b15 | 2015-10-02 14:29:07 +0100 | [diff] [blame] | 95 | rx->header = get_unaligned_le32(skb->data + offset); |
| 96 | offset = 0; |
| 97 | |
| 98 | size = (u16)(rx->header & 0x7ff); |
| 99 | if (size != ((~rx->header >> 16) & 0x7ff)) { |
| 100 | netdev_err(dev->net, "asix_rx_fixup() Data Header synchronisation was lost, remaining %d\n", |
| 101 | rx->remaining); |
Dean Jenkins | 6a57081 | 2015-10-02 14:29:08 +0100 | [diff] [blame] | 102 | if (rx->ax_skb) { |
| 103 | kfree_skb(rx->ax_skb); |
| 104 | rx->ax_skb = NULL; |
| 105 | /* Discard the incomplete netdev Ethernet frame |
| 106 | * and assume the Data header is at the start of |
| 107 | * the current URB socket buffer. |
| 108 | */ |
| 109 | } |
Dean Jenkins | 3f30b15 | 2015-10-02 14:29:07 +0100 | [diff] [blame] | 110 | rx->remaining = 0; |
| 111 | } |
| 112 | } |
| 113 | |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 114 | while (offset + sizeof(u16) <= skb->len) { |
Dean Jenkins | 7b0378f | 2015-10-02 14:29:04 +0100 | [diff] [blame] | 115 | u16 copy_length; |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 116 | unsigned char *data; |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 117 | |
Dean Jenkins | 7b0378f | 2015-10-02 14:29:04 +0100 | [diff] [blame] | 118 | if (!rx->remaining) { |
Dean Jenkins | 3bfc69a | 2015-10-02 14:29:05 +0100 | [diff] [blame] | 119 | if (skb->len - offset == sizeof(u16)) { |
| 120 | rx->header = get_unaligned_le16( |
| 121 | skb->data + offset); |
| 122 | rx->split_head = true; |
| 123 | offset += sizeof(u16); |
| 124 | break; |
| 125 | } |
| 126 | |
| 127 | if (rx->split_head == true) { |
| 128 | rx->header |= (get_unaligned_le16( |
| 129 | skb->data + offset) << 16); |
| 130 | rx->split_head = false; |
| 131 | offset += sizeof(u16); |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 132 | } else { |
| 133 | rx->header = get_unaligned_le32(skb->data + |
| 134 | offset); |
| 135 | offset += sizeof(u32); |
| 136 | } |
Marek Vasut | bc466e6 | 2011-07-26 16:44:46 +0000 | [diff] [blame] | 137 | |
Dean Jenkins | 7b0378f | 2015-10-02 14:29:04 +0100 | [diff] [blame] | 138 | /* take frame length from Data header 32-bit word */ |
| 139 | size = (u16)(rx->header & 0x7ff); |
| 140 | if (size != ((~rx->header >> 16) & 0x7ff)) { |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 141 | netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n", |
| 142 | rx->header, offset); |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 143 | return 0; |
| 144 | } |
Dean Jenkins | 9a5ccd8 | 2015-10-02 14:29:06 +0100 | [diff] [blame] | 145 | if (size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) { |
stephen hemminger | b70183d | 2015-12-17 17:51:16 -0800 | [diff] [blame] | 146 | netdev_dbg(dev->net, "asix_rx_fixup() Bad RX Length %d\n", |
Dean Jenkins | 9a5ccd8 | 2015-10-02 14:29:06 +0100 | [diff] [blame] | 147 | size); |
| 148 | return 0; |
| 149 | } |
| 150 | |
Dean Jenkins | 6a57081 | 2015-10-02 14:29:08 +0100 | [diff] [blame] | 151 | /* Sometimes may fail to get a netdev socket buffer but |
| 152 | * continue to process the URB socket buffer so that |
| 153 | * synchronisation of the Ethernet frame Data header |
| 154 | * word is maintained. |
| 155 | */ |
Dean Jenkins | 7b0378f | 2015-10-02 14:29:04 +0100 | [diff] [blame] | 156 | rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, size); |
Neil Jones | 3f78d1f | 2010-05-17 17:18:28 -0700 | [diff] [blame] | 157 | |
Dean Jenkins | 9a5ccd8 | 2015-10-02 14:29:06 +0100 | [diff] [blame] | 158 | rx->remaining = size; |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 159 | } |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 160 | |
Dean Jenkins | 7b0378f | 2015-10-02 14:29:04 +0100 | [diff] [blame] | 161 | if (rx->remaining > skb->len - offset) { |
| 162 | copy_length = skb->len - offset; |
| 163 | rx->remaining -= copy_length; |
| 164 | } else { |
| 165 | copy_length = rx->remaining; |
| 166 | rx->remaining = 0; |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 167 | } |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 168 | |
Dean Jenkins | 6a57081 | 2015-10-02 14:29:08 +0100 | [diff] [blame] | 169 | if (rx->ax_skb) { |
| 170 | data = skb_put(rx->ax_skb, copy_length); |
| 171 | memcpy(data, skb->data + offset, copy_length); |
| 172 | if (!rx->remaining) |
| 173 | usbnet_skb_return(dev, rx->ax_skb); |
| 174 | } |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 175 | |
Dean Jenkins | 7b0378f | 2015-10-02 14:29:04 +0100 | [diff] [blame] | 176 | offset += (copy_length + 1) & 0xfffe; |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 177 | } |
| 178 | |
Eric Dumazet | a9e0aca | 2012-03-14 20:18:32 +0000 | [diff] [blame] | 179 | if (skb->len != offset) { |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 180 | netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d, %d\n", |
| 181 | skb->len, offset); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 182 | return 0; |
| 183 | } |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 184 | |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 185 | return 1; |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 186 | } |
| 187 | |
Lucas Stach | 8b5b6f5 | 2013-01-16 04:24:07 +0000 | [diff] [blame] | 188 | int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb) |
| 189 | { |
| 190 | struct asix_common_private *dp = dev->driver_priv; |
| 191 | struct asix_rx_fixup_info *rx = &dp->rx_fixup_info; |
| 192 | |
| 193 | return asix_rx_fixup_internal(dev, skb, rx); |
| 194 | } |
| 195 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 196 | struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, |
| 197 | gfp_t flags) |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 198 | { |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 199 | int padlen; |
| 200 | int headroom = skb_headroom(skb); |
| 201 | int tailroom = skb_tailroom(skb); |
| 202 | u32 packet_len; |
| 203 | u32 padbytes = 0xffff0000; |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 204 | |
Ingo van Lil | 2a58094 | 2012-04-23 22:05:38 +0000 | [diff] [blame] | 205 | padlen = ((skb->len + 4) & (dev->maxpacket - 1)) ? 0 : 4; |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 206 | |
Eric Dumazet | 95162d6 | 2012-07-05 04:31:01 +0000 | [diff] [blame] | 207 | /* We need to push 4 bytes in front of frame (packet_len) |
| 208 | * and maybe add 4 bytes after the end (if padlen is 4) |
| 209 | * |
| 210 | * Avoid skb_copy_expand() expensive call, using following rules : |
| 211 | * - We are allowed to push 4 bytes in headroom if skb_header_cloned() |
| 212 | * is false (and if we have 4 bytes of headroom) |
| 213 | * - We are allowed to put 4 bytes at tail if skb_cloned() |
| 214 | * is false (and if we have 4 bytes of tailroom) |
| 215 | * |
| 216 | * TCP packets for example are cloned, but skb_header_release() |
| 217 | * was called in tcp stack, allowing us to use headroom for our needs. |
| 218 | */ |
| 219 | if (!skb_header_cloned(skb) && |
| 220 | !(padlen && skb_cloned(skb)) && |
| 221 | headroom + tailroom >= 4 + padlen) { |
| 222 | /* following should not happen, but better be safe */ |
| 223 | if (headroom < 4 || |
| 224 | tailroom < padlen) { |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 225 | skb->data = memmove(skb->head + 4, skb->data, skb->len); |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 226 | skb_set_tail_pointer(skb, skb->len); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 227 | } |
| 228 | } else { |
| 229 | struct sk_buff *skb2; |
Eric Dumazet | 95162d6 | 2012-07-05 04:31:01 +0000 | [diff] [blame] | 230 | |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 231 | skb2 = skb_copy_expand(skb, 4, padlen, flags); |
| 232 | dev_kfree_skb_any(skb); |
| 233 | skb = skb2; |
| 234 | if (!skb) |
| 235 | return NULL; |
| 236 | } |
| 237 | |
Eric Dumazet | 95162d6 | 2012-07-05 04:31:01 +0000 | [diff] [blame] | 238 | packet_len = ((skb->len ^ 0x0000ffff) << 16) + skb->len; |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 239 | skb_push(skb, 4); |
David Hollis | 57e4f04 | 2007-02-05 12:03:03 -0500 | [diff] [blame] | 240 | cpu_to_le32s(&packet_len); |
Arnaldo Carvalho de Melo | 27d7ff4 | 2007-03-31 11:55:19 -0300 | [diff] [blame] | 241 | skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len)); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 242 | |
Ingo van Lil | 2a58094 | 2012-04-23 22:05:38 +0000 | [diff] [blame] | 243 | if (padlen) { |
David Hollis | 57e4f04 | 2007-02-05 12:03:03 -0500 | [diff] [blame] | 244 | cpu_to_le32s(&padbytes); |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 245 | memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes)); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 246 | skb_put(skb, sizeof(padbytes)); |
| 247 | } |
Ben Hutchings | 1e9e39f | 2015-02-26 19:34:37 +0000 | [diff] [blame] | 248 | |
Ben Hutchings | 7a1e890 | 2015-03-25 21:41:33 +0100 | [diff] [blame] | 249 | usbnet_set_skb_tx_stats(skb, 1, 0); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 250 | return skb; |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 251 | } |
| 252 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 253 | int asix_set_sw_mii(struct usbnet *dev, int in_pm) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 254 | { |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 255 | int ret; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 256 | ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL, in_pm); |
| 257 | |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 258 | if (ret < 0) |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 259 | netdev_err(dev->net, "Failed to enable software MII access\n"); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 260 | return ret; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 261 | } |
| 262 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 263 | int asix_set_hw_mii(struct usbnet *dev, int in_pm) |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 264 | { |
| 265 | int ret; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 266 | ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL, in_pm); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 267 | if (ret < 0) |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 268 | netdev_err(dev->net, "Failed to enable hardware MII access\n"); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 269 | return ret; |
| 270 | } |
| 271 | |
Christian Riesch | 16626b0 | 2012-07-13 05:26:31 +0000 | [diff] [blame] | 272 | int asix_read_phy_addr(struct usbnet *dev, int internal) |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 273 | { |
Christian Riesch | 16626b0 | 2012-07-13 05:26:31 +0000 | [diff] [blame] | 274 | int offset = (internal ? 1 : 0); |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 275 | u8 buf[2]; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 276 | int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf, 0); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 277 | |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 278 | netdev_dbg(dev->net, "asix_get_phy_addr()\n"); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 279 | |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 280 | if (ret < 0) { |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 281 | netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret); |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 282 | goto out; |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 283 | } |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 284 | netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n", |
| 285 | *((__le16 *)buf)); |
Christian Riesch | 16626b0 | 2012-07-13 05:26:31 +0000 | [diff] [blame] | 286 | ret = buf[offset]; |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 287 | |
| 288 | out: |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 289 | return ret; |
| 290 | } |
| 291 | |
Christian Riesch | 16626b0 | 2012-07-13 05:26:31 +0000 | [diff] [blame] | 292 | int asix_get_phy_addr(struct usbnet *dev) |
| 293 | { |
| 294 | /* return the address of the internal phy */ |
| 295 | return asix_read_phy_addr(dev, 1); |
| 296 | } |
| 297 | |
| 298 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 299 | int asix_sw_reset(struct usbnet *dev, u8 flags, int in_pm) |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 300 | { |
| 301 | int ret; |
| 302 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 303 | ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL, in_pm); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 304 | if (ret < 0) |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 305 | netdev_err(dev->net, "Failed to send software reset: %02x\n", ret); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 306 | |
| 307 | return ret; |
| 308 | } |
| 309 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 310 | u16 asix_read_rx_ctl(struct usbnet *dev, int in_pm) |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 311 | { |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 312 | __le16 v; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 313 | int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v, in_pm); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 314 | |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 315 | if (ret < 0) { |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 316 | netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret); |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 317 | goto out; |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 318 | } |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 319 | ret = le16_to_cpu(v); |
| 320 | out: |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 321 | return ret; |
| 322 | } |
| 323 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 324 | int asix_write_rx_ctl(struct usbnet *dev, u16 mode, int in_pm) |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 325 | { |
| 326 | int ret; |
| 327 | |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 328 | netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode); |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 329 | ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL, in_pm); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 330 | if (ret < 0) |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 331 | netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n", |
| 332 | mode, ret); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 333 | |
| 334 | return ret; |
| 335 | } |
| 336 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 337 | u16 asix_read_medium_status(struct usbnet *dev, int in_pm) |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 338 | { |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 339 | __le16 v; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 340 | int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, |
| 341 | 0, 0, 2, &v, in_pm); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 342 | |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 343 | if (ret < 0) { |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 344 | netdev_err(dev->net, "Error reading Medium Status register: %02x\n", |
| 345 | ret); |
Grant Grundler | 83e1b91 | 2011-10-04 09:55:18 +0000 | [diff] [blame] | 346 | return ret; /* TODO: callers not checking for error ret */ |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 347 | } |
Grant Grundler | 83e1b91 | 2011-10-04 09:55:18 +0000 | [diff] [blame] | 348 | |
| 349 | return le16_to_cpu(v); |
| 350 | |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 351 | } |
| 352 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 353 | int asix_write_medium_mode(struct usbnet *dev, u16 mode, int in_pm) |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 354 | { |
| 355 | int ret; |
| 356 | |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 357 | netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode); |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 358 | ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, |
| 359 | mode, 0, 0, NULL, in_pm); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 360 | if (ret < 0) |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 361 | netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n", |
| 362 | mode, ret); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 363 | |
| 364 | return ret; |
| 365 | } |
| 366 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 367 | int asix_write_gpio(struct usbnet *dev, u16 value, int sleep, int in_pm) |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 368 | { |
| 369 | int ret; |
| 370 | |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 371 | netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value); |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 372 | ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL, in_pm); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 373 | if (ret < 0) |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 374 | netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n", |
| 375 | value, ret); |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 376 | |
| 377 | if (sleep) |
| 378 | msleep(sleep); |
| 379 | |
| 380 | return ret; |
| 381 | } |
| 382 | |
| 383 | /* |
| 384 | * AX88772 & AX88178 have a 16-bit RX_CTL value |
| 385 | */ |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 386 | void asix_set_multicast(struct net_device *net) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 387 | { |
| 388 | struct usbnet *dev = netdev_priv(net); |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 389 | struct asix_data *data = (struct asix_data *)&dev->data; |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 390 | u16 rx_ctl = AX_DEFAULT_RX_CTL; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 391 | |
| 392 | if (net->flags & IFF_PROMISC) { |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 393 | rx_ctl |= AX_RX_CTL_PRO; |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 394 | } else if (net->flags & IFF_ALLMULTI || |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 395 | netdev_mc_count(net) > AX_MAX_MCAST) { |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 396 | rx_ctl |= AX_RX_CTL_AMALL; |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 397 | } else if (netdev_mc_empty(net)) { |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 398 | /* just broadcast and directed */ |
| 399 | } else { |
| 400 | /* We use the 20 byte dev->data |
| 401 | * for our 8 byte filter buffer |
| 402 | * to avoid allocating memory that |
| 403 | * is tricky to free later */ |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 404 | struct netdev_hw_addr *ha; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 405 | u32 crc_bits; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 406 | |
| 407 | memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); |
| 408 | |
| 409 | /* Build the multicast hash filter. */ |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 410 | netdev_for_each_mc_addr(ha, net) { |
| 411 | crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 412 | data->multi_filter[crc_bits >> 3] |= |
| 413 | 1 << (crc_bits & 7); |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 414 | } |
| 415 | |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 416 | asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 417 | AX_MCAST_FILTER_SIZE, data->multi_filter); |
| 418 | |
David Hollis | 933a27d | 2006-07-29 10:12:50 -0400 | [diff] [blame] | 419 | rx_ctl |= AX_RX_CTL_AM; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 420 | } |
| 421 | |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 422 | asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 423 | } |
| 424 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 425 | int asix_mdio_read(struct net_device *netdev, int phy_id, int loc) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 426 | { |
| 427 | struct usbnet *dev = netdev_priv(netdev); |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 428 | __le16 res; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 429 | u8 smsr; |
| 430 | int i = 0; |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 431 | int ret; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 432 | |
Arnd Bergmann | a9fc633 | 2006-10-09 00:08:02 +0200 | [diff] [blame] | 433 | mutex_lock(&dev->phy_mutex); |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 434 | do { |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 435 | ret = asix_set_sw_mii(dev, 0); |
Guenter Roeck | 610df1d | 2016-10-13 16:43:16 -0700 | [diff] [blame] | 436 | if (ret == -ENODEV || ret == -ETIMEDOUT) |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 437 | break; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 438 | usleep_range(1000, 1100); |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 439 | ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, |
| 440 | 0, 0, 1, &smsr, 0); |
| 441 | } while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV)); |
Guenter Roeck | 610df1d | 2016-10-13 16:43:16 -0700 | [diff] [blame] | 442 | if (ret == -ENODEV || ret == -ETIMEDOUT) { |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 443 | mutex_unlock(&dev->phy_mutex); |
| 444 | return ret; |
| 445 | } |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 446 | |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 447 | asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 448 | (__u16)loc, 2, &res, 0); |
| 449 | asix_set_hw_mii(dev, 0); |
Arnd Bergmann | a9fc633 | 2006-10-09 00:08:02 +0200 | [diff] [blame] | 450 | mutex_unlock(&dev->phy_mutex); |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 451 | |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 452 | netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 453 | phy_id, loc, le16_to_cpu(res)); |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 454 | |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 455 | return le16_to_cpu(res); |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 456 | } |
| 457 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 458 | void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 459 | { |
| 460 | struct usbnet *dev = netdev_priv(netdev); |
Al Viro | 51bf297 | 2007-12-22 17:42:36 +0000 | [diff] [blame] | 461 | __le16 res = cpu_to_le16(val); |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 462 | u8 smsr; |
| 463 | int i = 0; |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 464 | int ret; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 465 | |
Joe Perches | 60b8675 | 2010-02-17 10:30:23 +0000 | [diff] [blame] | 466 | netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 467 | phy_id, loc, val); |
| 468 | |
Arnd Bergmann | a9fc633 | 2006-10-09 00:08:02 +0200 | [diff] [blame] | 469 | mutex_lock(&dev->phy_mutex); |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 470 | do { |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 471 | ret = asix_set_sw_mii(dev, 0); |
| 472 | if (ret == -ENODEV) |
| 473 | break; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 474 | usleep_range(1000, 1100); |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 475 | ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, |
| 476 | 0, 0, 1, &smsr, 0); |
| 477 | } while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV)); |
| 478 | if (ret == -ENODEV) { |
| 479 | mutex_unlock(&dev->phy_mutex); |
| 480 | return; |
| 481 | } |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 482 | |
| 483 | asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, |
| 484 | (__u16)loc, 2, &res, 0); |
| 485 | asix_set_hw_mii(dev, 0); |
| 486 | mutex_unlock(&dev->phy_mutex); |
| 487 | } |
| 488 | |
| 489 | int asix_mdio_read_nopm(struct net_device *netdev, int phy_id, int loc) |
| 490 | { |
| 491 | struct usbnet *dev = netdev_priv(netdev); |
| 492 | __le16 res; |
| 493 | u8 smsr; |
| 494 | int i = 0; |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 495 | int ret; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 496 | |
| 497 | mutex_lock(&dev->phy_mutex); |
| 498 | do { |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 499 | ret = asix_set_sw_mii(dev, 1); |
Guenter Roeck | 610df1d | 2016-10-13 16:43:16 -0700 | [diff] [blame] | 500 | if (ret == -ENODEV || ret == -ETIMEDOUT) |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 501 | break; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 502 | usleep_range(1000, 1100); |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 503 | ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, |
| 504 | 0, 0, 1, &smsr, 1); |
| 505 | } while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV)); |
Guenter Roeck | 610df1d | 2016-10-13 16:43:16 -0700 | [diff] [blame] | 506 | if (ret == -ENODEV || ret == -ETIMEDOUT) { |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 507 | mutex_unlock(&dev->phy_mutex); |
| 508 | return ret; |
| 509 | } |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 510 | |
| 511 | asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, |
| 512 | (__u16)loc, 2, &res, 1); |
| 513 | asix_set_hw_mii(dev, 1); |
| 514 | mutex_unlock(&dev->phy_mutex); |
| 515 | |
| 516 | netdev_dbg(dev->net, "asix_mdio_read_nopm() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", |
| 517 | phy_id, loc, le16_to_cpu(res)); |
| 518 | |
| 519 | return le16_to_cpu(res); |
| 520 | } |
| 521 | |
| 522 | void |
| 523 | asix_mdio_write_nopm(struct net_device *netdev, int phy_id, int loc, int val) |
| 524 | { |
| 525 | struct usbnet *dev = netdev_priv(netdev); |
| 526 | __le16 res = cpu_to_le16(val); |
| 527 | u8 smsr; |
| 528 | int i = 0; |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 529 | int ret; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 530 | |
| 531 | netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", |
| 532 | phy_id, loc, val); |
| 533 | |
| 534 | mutex_lock(&dev->phy_mutex); |
| 535 | do { |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 536 | ret = asix_set_sw_mii(dev, 1); |
| 537 | if (ret == -ENODEV) |
| 538 | break; |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 539 | usleep_range(1000, 1100); |
Robert Foss | 8a46f66 | 2016-08-29 09:32:16 -0400 | [diff] [blame] | 540 | ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, |
| 541 | 0, 0, 1, &smsr, 1); |
| 542 | } while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV)); |
| 543 | if (ret == -ENODEV) { |
| 544 | mutex_unlock(&dev->phy_mutex); |
| 545 | return; |
| 546 | } |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 547 | |
| 548 | asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, |
| 549 | (__u16)loc, 2, &res, 1); |
| 550 | asix_set_hw_mii(dev, 1); |
Arnd Bergmann | a9fc633 | 2006-10-09 00:08:02 +0200 | [diff] [blame] | 551 | mutex_unlock(&dev->phy_mutex); |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 552 | } |
| 553 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 554 | void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 555 | { |
| 556 | struct usbnet *dev = netdev_priv(net); |
| 557 | u8 opt; |
| 558 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 559 | if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, |
| 560 | 0, 0, 1, &opt, 0) < 0) { |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 561 | wolinfo->supported = 0; |
| 562 | wolinfo->wolopts = 0; |
| 563 | return; |
| 564 | } |
| 565 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC; |
| 566 | wolinfo->wolopts = 0; |
allan | f87ce5b | 2011-12-22 20:38:51 +0000 | [diff] [blame] | 567 | if (opt & AX_MONITOR_LINK) |
| 568 | wolinfo->wolopts |= WAKE_PHY; |
| 569 | if (opt & AX_MONITOR_MAGIC) |
| 570 | wolinfo->wolopts |= WAKE_MAGIC; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 571 | } |
| 572 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 573 | int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 574 | { |
| 575 | struct usbnet *dev = netdev_priv(net); |
| 576 | u8 opt = 0; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 577 | |
| 578 | if (wolinfo->wolopts & WAKE_PHY) |
| 579 | opt |= AX_MONITOR_LINK; |
| 580 | if (wolinfo->wolopts & WAKE_MAGIC) |
| 581 | opt |= AX_MONITOR_MAGIC; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 582 | |
David Hollis | 48b1be6 | 2006-03-28 20:15:42 -0500 | [diff] [blame] | 583 | if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 584 | opt, 0, 0, NULL, 0) < 0) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 585 | return -EINVAL; |
| 586 | |
| 587 | return 0; |
| 588 | } |
| 589 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 590 | int asix_get_eeprom_len(struct net_device *net) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 591 | { |
Christian Riesch | ceb02c9 | 2012-07-19 00:23:06 +0000 | [diff] [blame] | 592 | return AX_EEPROM_LEN; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 593 | } |
| 594 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 595 | int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
| 596 | u8 *data) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 597 | { |
| 598 | struct usbnet *dev = netdev_priv(net); |
Christian Riesch | ceb02c9 | 2012-07-19 00:23:06 +0000 | [diff] [blame] | 599 | u16 *eeprom_buff; |
| 600 | int first_word, last_word; |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 601 | int i; |
| 602 | |
Christian Riesch | ceb02c9 | 2012-07-19 00:23:06 +0000 | [diff] [blame] | 603 | if (eeprom->len == 0) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 604 | return -EINVAL; |
| 605 | |
| 606 | eeprom->magic = AX_EEPROM_MAGIC; |
| 607 | |
Christian Riesch | ceb02c9 | 2012-07-19 00:23:06 +0000 | [diff] [blame] | 608 | first_word = eeprom->offset >> 1; |
| 609 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; |
| 610 | |
| 611 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), |
| 612 | GFP_KERNEL); |
| 613 | if (!eeprom_buff) |
| 614 | return -ENOMEM; |
| 615 | |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 616 | /* ax8817x returns 2 bytes from eeprom on read */ |
Christian Riesch | ceb02c9 | 2012-07-19 00:23:06 +0000 | [diff] [blame] | 617 | for (i = first_word; i <= last_word; i++) { |
| 618 | if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, i, 0, 2, |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 619 | &eeprom_buff[i - first_word], 0) < 0) { |
Christian Riesch | ceb02c9 | 2012-07-19 00:23:06 +0000 | [diff] [blame] | 620 | kfree(eeprom_buff); |
| 621 | return -EIO; |
| 622 | } |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 623 | } |
Christian Riesch | ceb02c9 | 2012-07-19 00:23:06 +0000 | [diff] [blame] | 624 | |
| 625 | memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); |
| 626 | kfree(eeprom_buff); |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 627 | return 0; |
| 628 | } |
| 629 | |
Christian Riesch | cb7b24c | 2012-07-19 00:23:07 +0000 | [diff] [blame] | 630 | int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
| 631 | u8 *data) |
| 632 | { |
| 633 | struct usbnet *dev = netdev_priv(net); |
| 634 | u16 *eeprom_buff; |
| 635 | int first_word, last_word; |
| 636 | int i; |
| 637 | int ret; |
| 638 | |
| 639 | netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n", |
| 640 | eeprom->len, eeprom->offset, eeprom->magic); |
| 641 | |
| 642 | if (eeprom->len == 0) |
| 643 | return -EINVAL; |
| 644 | |
| 645 | if (eeprom->magic != AX_EEPROM_MAGIC) |
| 646 | return -EINVAL; |
| 647 | |
| 648 | first_word = eeprom->offset >> 1; |
| 649 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; |
| 650 | |
| 651 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), |
| 652 | GFP_KERNEL); |
| 653 | if (!eeprom_buff) |
| 654 | return -ENOMEM; |
| 655 | |
| 656 | /* align data to 16 bit boundaries, read the missing data from |
| 657 | the EEPROM */ |
| 658 | if (eeprom->offset & 1) { |
| 659 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, first_word, 0, 2, |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 660 | &eeprom_buff[0], 0); |
Christian Riesch | cb7b24c | 2012-07-19 00:23:07 +0000 | [diff] [blame] | 661 | if (ret < 0) { |
| 662 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word); |
| 663 | goto free; |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | if ((eeprom->offset + eeprom->len) & 1) { |
| 668 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, last_word, 0, 2, |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 669 | &eeprom_buff[last_word - first_word], 0); |
Christian Riesch | cb7b24c | 2012-07-19 00:23:07 +0000 | [diff] [blame] | 670 | if (ret < 0) { |
| 671 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word); |
| 672 | goto free; |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len); |
| 677 | |
| 678 | /* write data to EEPROM */ |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 679 | ret = asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0x0000, 0, 0, NULL, 0); |
Christian Riesch | cb7b24c | 2012-07-19 00:23:07 +0000 | [diff] [blame] | 680 | if (ret < 0) { |
| 681 | netdev_err(net, "Failed to enable EEPROM write\n"); |
| 682 | goto free; |
| 683 | } |
| 684 | msleep(20); |
| 685 | |
| 686 | for (i = first_word; i <= last_word; i++) { |
| 687 | netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n", |
| 688 | i, eeprom_buff[i - first_word]); |
| 689 | ret = asix_write_cmd(dev, AX_CMD_WRITE_EEPROM, i, |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 690 | eeprom_buff[i - first_word], 0, NULL, 0); |
Christian Riesch | cb7b24c | 2012-07-19 00:23:07 +0000 | [diff] [blame] | 691 | if (ret < 0) { |
| 692 | netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", |
| 693 | i); |
| 694 | goto free; |
| 695 | } |
| 696 | msleep(20); |
| 697 | } |
| 698 | |
Robert Foss | d9fe64e | 2016-08-29 09:32:15 -0400 | [diff] [blame] | 699 | ret = asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0x0000, 0, 0, NULL, 0); |
Christian Riesch | cb7b24c | 2012-07-19 00:23:07 +0000 | [diff] [blame] | 700 | if (ret < 0) { |
| 701 | netdev_err(net, "Failed to disable EEPROM write\n"); |
| 702 | goto free; |
| 703 | } |
| 704 | |
| 705 | ret = 0; |
| 706 | free: |
| 707 | kfree(eeprom_buff); |
| 708 | return ret; |
| 709 | } |
| 710 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 711 | void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 712 | { |
| 713 | /* Inherit standard device info */ |
| 714 | usbnet_get_drvinfo(net, info); |
Jiri Pirko | 7826d43 | 2013-01-06 00:44:26 +0000 | [diff] [blame] | 715 | strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); |
| 716 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); |
David Brownell | 2e55cc7 | 2005-08-31 09:53:10 -0700 | [diff] [blame] | 717 | } |
| 718 | |
Christian Riesch | 607740b | 2012-07-13 05:26:30 +0000 | [diff] [blame] | 719 | int asix_set_mac_address(struct net_device *net, void *p) |
Jussi Kivilinna | 7f29a3b | 2010-03-09 12:24:38 +0000 | [diff] [blame] | 720 | { |
| 721 | struct usbnet *dev = netdev_priv(net); |
| 722 | struct asix_data *data = (struct asix_data *)&dev->data; |
| 723 | struct sockaddr *addr = p; |
| 724 | |
| 725 | if (netif_running(net)) |
| 726 | return -EBUSY; |
| 727 | if (!is_valid_ether_addr(addr->sa_data)) |
| 728 | return -EADDRNOTAVAIL; |
| 729 | |
| 730 | memcpy(net->dev_addr, addr->sa_data, ETH_ALEN); |
| 731 | |
| 732 | /* We use the 20 byte dev->data |
| 733 | * for our 6 byte mac buffer |
| 734 | * to avoid allocating memory that |
| 735 | * is tricky to free later */ |
| 736 | memcpy(data->mac_addr, addr->sa_data, ETH_ALEN); |
| 737 | asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, |
| 738 | data->mac_addr); |
| 739 | |
| 740 | return 0; |
| 741 | } |