diff options
Diffstat (limited to 'drivers/net/wireless/atmel_cs.c')
| -rw-r--r-- | drivers/net/wireless/atmel_cs.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c new file mode 100644 index 000000000..7afc9c532 --- /dev/null +++ b/drivers/net/wireless/atmel_cs.c @@ -0,0 +1,286 @@ +/*** -*- linux-c -*- ********************************************************** + + Driver for Atmel at76c502 at76c504 and at76c506 wireless cards. + + Copyright 2000-2001 ATMEL Corporation. + Copyright 2003 Simon Kelley. + + This code was developed from version 2.1.1 of the Atmel drivers, + released by Atmel corp. under the GPL in December 2002. It also + includes code from the Linux aironet drivers (C) Benjamin Reed, + and the Linux PCMCIA package, (C) David Hinds. + + For all queries about this code, please contact the current author, + Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This software is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Atmel wireless lan drivers; if not, see + <http://www.gnu.org/licenses/>. + +******************************************************************************/ + +#ifdef __IN_PCMCIA_PACKAGE__ +#include <pcmcia/k_compat.h> +#endif +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/ptrace.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/netdevice.h> +#include <linux/moduleparam.h> +#include <linux/device.h> + +#include <pcmcia/cistpl.h> +#include <pcmcia/cisreg.h> +#include <pcmcia/ds.h> +#include <pcmcia/ciscode.h> + +#include <asm/io.h> +#include <linux/wireless.h> + +#include "atmel.h" + + +/*====================================================================*/ + +MODULE_AUTHOR("Simon Kelley"); +MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards"); + +/*====================================================================*/ + +static int atmel_config(struct pcmcia_device *link); +static void atmel_release(struct pcmcia_device *link); + +static void atmel_detach(struct pcmcia_device *p_dev); + +struct local_info { + struct net_device *eth_dev; +}; + +static int atmel_probe(struct pcmcia_device *p_dev) +{ + struct local_info *local; + + dev_dbg(&p_dev->dev, "atmel_attach()\n"); + + /* Allocate space for private device-specific data */ + local = kzalloc(sizeof(*local), GFP_KERNEL); + if (!local) + return -ENOMEM; + + p_dev->priv = local; + + return atmel_config(p_dev); +} /* atmel_attach */ + +static void atmel_detach(struct pcmcia_device *link) +{ + dev_dbg(&link->dev, "atmel_detach\n"); + + atmel_release(link); + + kfree(link->priv); +} + +/* Call-back function to interrogate PCMCIA-specific information + about the current existence of the card */ +static int card_present(void *arg) +{ + struct pcmcia_device *link = (struct pcmcia_device *)arg; + + if (pcmcia_dev_present(link)) + return 1; + + return 0; +} + +static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data) +{ + if (p_dev->config_index == 0) + return -EINVAL; + + return pcmcia_request_io(p_dev); +} + +static int atmel_config(struct pcmcia_device *link) +{ + struct local_info *dev; + int ret; + const struct pcmcia_device_id *did; + + dev = link->priv; + did = dev_get_drvdata(&link->dev); + + dev_dbg(&link->dev, "atmel_config\n"); + + link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | + CONF_AUTO_AUDIO | CONF_AUTO_SET_IO; + + if (pcmcia_loop_config(link, atmel_config_check, NULL)) + goto failed; + + if (!link->irq) { + dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); + goto failed; + } + + ret = pcmcia_enable_device(link); + if (ret) + goto failed; + + ((struct local_info *)link->priv)->eth_dev = + init_atmel_card(link->irq, + link->resource[0]->start, + did ? did->driver_info : ATMEL_FW_TYPE_NONE, + &link->dev, + card_present, + link); + if (!((struct local_info *)link->priv)->eth_dev) + goto failed; + + + return 0; + + failed: + atmel_release(link); + return -ENODEV; +} + +static void atmel_release(struct pcmcia_device *link) +{ + struct net_device *dev = ((struct local_info *)link->priv)->eth_dev; + + dev_dbg(&link->dev, "atmel_release\n"); + + if (dev) + stop_atmel_card(dev); + ((struct local_info *)link->priv)->eth_dev = NULL; + + pcmcia_disable_device(link); +} + +static int atmel_suspend(struct pcmcia_device *link) +{ + struct local_info *local = link->priv; + + netif_device_detach(local->eth_dev); + + return 0; +} + +static int atmel_resume(struct pcmcia_device *link) +{ + struct local_info *local = link->priv; + + atmel_open(local->eth_dev); + netif_device_attach(local->eth_dev); + + return 0; +} + +/*====================================================================*/ +/* We use the driver_info field to store the correct firmware type for a card. */ + +#define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \ + .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \ + PCMCIA_DEV_ID_MATCH_CARD_ID, \ + .manf_id = (manf), \ + .card_id = (card), \ + .driver_info = (kernel_ulong_t)(info), } + +#define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \ + .match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \ + PCMCIA_DEV_ID_MATCH_PROD_ID2, \ + .prod_id = { (v1), (v2), NULL, NULL }, \ + .prod_id_hash = { (vh1), (vh2), 0, 0 }, \ + .driver_info = (kernel_ulong_t)(info), } + +static const struct pcmcia_device_id atmel_ids[] = { + PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM), + PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM), + PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E), + PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502), + PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E), + PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502), + PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D), + PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E), + PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958), + PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504), + PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958), + PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502), + PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E), + PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502), + PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958), + PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502), + PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D), + PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502), + PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D), + PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D), + PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E), + PCMCIA_DEVICE_NULL +}; + +MODULE_DEVICE_TABLE(pcmcia, atmel_ids); + +static struct pcmcia_driver atmel_driver = { + .owner = THIS_MODULE, + .name = "atmel_cs", + .probe = atmel_probe, + .remove = atmel_detach, + .id_table = atmel_ids, + .suspend = atmel_suspend, + .resume = atmel_resume, +}; +module_pcmcia_driver(atmel_driver); + +/* + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 2 + of the License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + In addition: + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + 3. The name of the author may not be used to endorse or promote + products derived from this software without specific prior written + permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ |