/* * IPWireless 3G PCMCIA Network Driver * * Original code * by Stephen Blackheath <stephen@blacksapphire.com>, * Ben Martel <benm@symmetric.co.nz> * * Copyrighted as follows: * Copyright (C) 2004 by Symmetric Systems Ltd (NZ) * * Various driver changes and rewrites, port to new kernels * Copyright (C) 2006-2007 Jiri Kosina * * Misc code cleanups and updates * Copyright (C) 2007 David Sterba */ #include "hardware.h" #include "network.h" #include "main.h" #include "tty.h" #include <linux/delay.h> #include <linux/init.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/sched.h> #include <linux/slab.h> #include <pcmcia/cisreg.h> #include <pcmcia/device_id.h> #include <pcmcia/ss.h> #include <pcmcia/ds.h> static struct pcmcia_device_id ipw_ids[] = { PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100), PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200), PCMCIA_DEVICE_NULL }; MODULE_DEVICE_TABLE(pcmcia, ipw_ids); static void ipwireless_detach(struct pcmcia_device *link); /* * Module params */ /* Debug mode: more verbose, print sent/recv bytes */ int ipwireless_debug; int ipwireless_loopback; int ipwireless_out_queue = 10; module_param_named(debug, ipwireless_debug, int, 0); module_param_named(loopback, ipwireless_loopback, int, 0); module_param_named(out_queue, ipwireless_out_queue, int, 0); MODULE_PARM_DESC(debug, "switch on debug messages [0]"); MODULE_PARM_DESC(loopback, "debug: enable ras_raw channel [0]"); MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]"); /* Executes in process context. */ static void signalled_reboot_work(struct work_struct *work_reboot) { struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev, work_reboot); struct pcmcia_device *link = ipw->link; pcmcia_reset_card(link->socket); } static void signalled_reboot_callback(void *callback_data) { struct ipw_dev *ipw = (struct ipw_dev *) callback_data; /* Delegate to process context. */ schedule_work(&ipw->work_reboot); } static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data) { struct ipw_dev *ipw = priv_data; struct resource *io_resource; int ret; p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; /* 0x40 causes it to generate level mode interrupts. */ /* 0x04 enables IREQ pin. */ p_dev->config_index |= 0x44; p_dev->io_lines = 16; ret = pcmcia_request_io(p_dev); if (ret) return ret; io_resource = request_region(p_dev->resource[0]->start, resource_size(p_dev->resource[0]), IPWIRELESS_PCCARD_NAME); p_dev->resource[2]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE; ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0); if (ret != 0) goto exit1; ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr); if (ret != 0) goto exit2; ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100; ipw->attr_memory = ioremap(p_dev->resource[2]->start, resource_size(p_dev->resource[2])); request_mem_region(p_dev->resource[2]->start, resource_size(p_dev->resource[2]), IPWIRELESS_PCCARD_NAME); p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE; p_dev->resource[3]->end = 0; /* this used to be 0x1000 */ ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0); if (ret != 0) goto exit2; ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0); if (ret != 0) goto exit3; ipw->attr_memory = ioremap(p_dev->resource[3]->start, resource_size(p_dev->resource[3])); request_mem_region(p_dev->resource[3]->start, resource_size(p_dev->resource[3]), IPWIRELESS_PCCARD_NAME); return 0; exit3: exit2: if (ipw->common_memory) { release_mem_region(p_dev->resource[2]->start, resource_size(p_dev->resource[2])); iounmap(ipw->common_memory); } exit1: release_resource(io_resource); pcmcia_disable_device(p_dev); return -1; } static int config_ipwireless(struct ipw_dev *ipw) { struct pcmcia_device *link = ipw->link; int ret = 0; ipw->is_v2_card = 0; link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM | CONF_ENABLE_IRQ; ret = pcmcia_loop_config(link, ipwireless_probe, ipw); if (ret != 0) return ret; INIT_WORK(&ipw->work_reboot, signalled_reboot_work); ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start, ipw->attr_memory, ipw->common_memory, ipw->is_v2_card, signalled_reboot_callback, ipw); ret = pcmcia_request_irq(link, ipwireless_interrupt); if (ret != 0) goto exit; printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n", ipw->is_v2_card ? "V2/V3" : "V1"); printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": I/O ports %pR, irq %d\n", link->resource[0], (unsigned int) link->irq); if (ipw->attr_memory && ipw->common_memory) printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": attr memory %pR, common memory %pR\n", link->resource[3], link->resource[2]); ipw->network = ipwireless_network_create(ipw->hardware); if (!ipw->network) goto exit; ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network); if (!ipw->tty) goto exit; ipwireless_init_hardware_v2_v3(ipw->hardware); /* * Do the RequestConfiguration last, because it enables interrupts. * Then we don't get any interrupts before we're ready for them. */ ret = pcmcia_enable_device(link); if (ret != 0) goto exit; return 0; exit: if (ipw->common_memory) { release_mem_region(link->resource[2]->start, resource_size(link->resource[2])); iounmap(ipw->common_memory); } if (ipw->attr_memory) { release_mem_region(link->resource[3]->start, resource_size(link->resource[3])); iounmap(ipw->attr_memory); } pcmcia_disable_device(link); return -1; } static void release_ipwireless(struct ipw_dev *ipw) { if (ipw->common_memory) { release_mem_region(ipw->link->resource[2]->start, resource_size(ipw->link->resource[2])); iounmap(ipw->common_memory); } if (ipw->attr_memory) { release_mem_region(ipw->link->resource[3]->start, resource_size(ipw->link->resource[3])); iounmap(ipw->attr_memory); } pcmcia_disable_device(ipw->link); } /* * ipwireless_attach() creates an "instance" of the driver, allocating * local data structures for one device (one interface). The device * is registered with Card Services. * * The pcmcia_device structure is initialized, but we don't actually * configure the card at this point -- we wait until we receive a * card insertion event. */ static int ipwireless_attach(struct pcmcia_device *link) { struct ipw_dev *ipw; int ret; ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL); if (!ipw) return -ENOMEM; ipw->link = link; link->priv = ipw; ipw->hardware = ipwireless_hardware_create(); if (!ipw->hardware) { kfree(ipw); return -ENOMEM; } /* RegisterClient will call config_ipwireless */ ret = config_ipwireless(ipw); if (ret != 0) { ipwireless_detach(link); return ret; } return 0; } /* * This deletes a driver "instance". The device is de-registered with * Card Services. If it has been released, all local data structures * are freed. Otherwise, the structures will be freed when the device * is released. */ static void ipwireless_detach(struct pcmcia_device *link) { struct ipw_dev *ipw = link->priv; release_ipwireless(ipw); if (ipw->tty != NULL) ipwireless_tty_free(ipw->tty); if (ipw->network != NULL) ipwireless_network_free(ipw->network); if (ipw->hardware != NULL) ipwireless_hardware_free(ipw->hardware); kfree(ipw); } static struct pcmcia_driver me = { .owner = THIS_MODULE, .probe = ipwireless_attach, .remove = ipwireless_detach, .name = IPWIRELESS_PCCARD_NAME, .id_table = ipw_ids }; /* * Module insertion : initialisation of the module. * Register the card with cardmgr... */ static int __init init_ipwireless(void) { int ret; ret = ipwireless_tty_init(); if (ret != 0) return ret; ret = pcmcia_register_driver(&me); if (ret != 0) ipwireless_tty_release(); return ret; } /* * Module removal */ static void __exit exit_ipwireless(void) { pcmcia_unregister_driver(&me); ipwireless_tty_release(); } module_init(init_ipwireless); module_exit(exit_ipwireless); MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR); MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION); MODULE_LICENSE("GPL");