| /* |
| * 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> |
| #include <pcmcia/cs.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, |
| cistpl_cftable_entry_t *cfg, |
| cistpl_cftable_entry_t *dflt, |
| unsigned int vcc, |
| void *priv_data) |
| { |
| struct ipw_dev *ipw = priv_data; |
| struct resource *io_resource; |
| memreq_t memreq_attr_memory; |
| memreq_t memreq_common_memory; |
| int ret; |
| |
| p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| p_dev->io.BasePort1 = cfg->io.win[0].base; |
| p_dev->io.NumPorts1 = cfg->io.win[0].len; |
| p_dev->io.IOAddrLines = 16; |
| |
| p_dev->irq.IRQInfo1 = cfg->irq.IRQInfo1; |
| |
| /* 0x40 causes it to generate level mode interrupts. */ |
| /* 0x04 enables IREQ pin. */ |
| p_dev->conf.ConfigIndex = cfg->index | 0x44; |
| ret = pcmcia_request_io(p_dev, &p_dev->io); |
| if (ret) |
| return ret; |
| |
| io_resource = request_region(p_dev->io.BasePort1, p_dev->io.NumPorts1, |
| IPWIRELESS_PCCARD_NAME); |
| |
| if (cfg->mem.nwin == 0) |
| return 0; |
| |
| ipw->request_common_memory.Attributes = |
| WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE; |
| ipw->request_common_memory.Base = cfg->mem.win[0].host_addr; |
| ipw->request_common_memory.Size = cfg->mem.win[0].len; |
| if (ipw->request_common_memory.Size < 0x1000) |
| ipw->request_common_memory.Size = 0x1000; |
| ipw->request_common_memory.AccessSpeed = 0; |
| |
| ret = pcmcia_request_window(p_dev, &ipw->request_common_memory, |
| &ipw->handle_common_memory); |
| |
| if (ret != 0) |
| goto exit1; |
| |
| memreq_common_memory.CardOffset = cfg->mem.win[0].card_addr; |
| memreq_common_memory.Page = 0; |
| |
| ret = pcmcia_map_mem_page(p_dev, ipw->handle_common_memory, |
| &memreq_common_memory); |
| |
| if (ret != 0) |
| goto exit2; |
| |
| ipw->is_v2_card = cfg->mem.win[0].len == 0x100; |
| |
| ipw->common_memory = ioremap(ipw->request_common_memory.Base, |
| ipw->request_common_memory.Size); |
| request_mem_region(ipw->request_common_memory.Base, |
| ipw->request_common_memory.Size, |
| IPWIRELESS_PCCARD_NAME); |
| |
| ipw->request_attr_memory.Attributes = |
| WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE; |
| ipw->request_attr_memory.Base = 0; |
| ipw->request_attr_memory.Size = 0; /* this used to be 0x1000 */ |
| ipw->request_attr_memory.AccessSpeed = 0; |
| |
| ret = pcmcia_request_window(p_dev, &ipw->request_attr_memory, |
| &ipw->handle_attr_memory); |
| |
| if (ret != 0) |
| goto exit2; |
| |
| memreq_attr_memory.CardOffset = 0; |
| memreq_attr_memory.Page = 0; |
| |
| ret = pcmcia_map_mem_page(p_dev, ipw->handle_attr_memory, |
| &memreq_attr_memory); |
| |
| if (ret != 0) |
| goto exit3; |
| |
| ipw->attr_memory = ioremap(ipw->request_attr_memory.Base, |
| ipw->request_attr_memory.Size); |
| request_mem_region(ipw->request_attr_memory.Base, |
| ipw->request_attr_memory.Size, IPWIRELESS_PCCARD_NAME); |
| |
| return 0; |
| |
| exit3: |
| pcmcia_release_window(p_dev, ipw->handle_attr_memory); |
| exit2: |
| if (ipw->common_memory) { |
| release_mem_region(ipw->request_common_memory.Base, |
| ipw->request_common_memory.Size); |
| iounmap(ipw->common_memory); |
| pcmcia_release_window(p_dev, ipw->handle_common_memory); |
| } else |
| pcmcia_release_window(p_dev, ipw->handle_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; |
| |
| ret = pcmcia_loop_config(link, ipwireless_probe, ipw); |
| if (ret != 0) |
| return ret; |
| |
| link->conf.Attributes = CONF_ENABLE_IRQ; |
| link->conf.IntType = INT_MEMORY_AND_IO; |
| |
| link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT; |
| link->irq.Handler = ipwireless_interrupt; |
| link->irq.Instance = ipw->hardware; |
| |
| INIT_WORK(&ipw->work_reboot, signalled_reboot_work); |
| |
| ipwireless_init_hardware_v1(ipw->hardware, link->io.BasePort1, |
| ipw->attr_memory, ipw->common_memory, |
| ipw->is_v2_card, signalled_reboot_callback, |
| ipw); |
| |
| ret = pcmcia_request_irq(link, &link->irq); |
| |
| 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 0x%04x-0x%04x, irq %d\n", |
| (unsigned int) link->io.BasePort1, |
| (unsigned int) (link->io.BasePort1 + |
| link->io.NumPorts1 - 1), |
| (unsigned int) link->irq.AssignedIRQ); |
| if (ipw->attr_memory && ipw->common_memory) |
| printk(KERN_INFO IPWIRELESS_PCCARD_NAME |
| ": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n", |
| ipw->request_attr_memory.Base, |
| ipw->request_attr_memory.Base |
| + ipw->request_attr_memory.Size - 1, |
| ipw->request_common_memory.Base, |
| ipw->request_common_memory.Base |
| + ipw->request_common_memory.Size - 1); |
| |
| ipw->network = ipwireless_network_create(ipw->hardware); |
| if (!ipw->network) |
| goto exit; |
| |
| ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network, |
| ipw->nodes); |
| 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_request_configuration(link, &link->conf); |
| |
| if (ret != 0) |
| goto exit; |
| |
| link->dev_node = &ipw->nodes[0]; |
| |
| return 0; |
| |
| exit: |
| if (ipw->attr_memory) { |
| release_mem_region(ipw->request_attr_memory.Base, |
| ipw->request_attr_memory.Size); |
| iounmap(ipw->attr_memory); |
| pcmcia_release_window(link, ipw->handle_attr_memory); |
| } |
| if (ipw->common_memory) { |
| release_mem_region(ipw->request_common_memory.Base, |
| ipw->request_common_memory.Size); |
| iounmap(ipw->common_memory); |
| pcmcia_release_window(link, ipw->handle_common_memory); |
| } |
| pcmcia_disable_device(link); |
| return -1; |
| } |
| |
| static void release_ipwireless(struct ipw_dev *ipw) |
| { |
| pcmcia_disable_device(ipw->link); |
| |
| if (ipw->common_memory) { |
| release_mem_region(ipw->request_common_memory.Base, |
| ipw->request_common_memory.Size); |
| iounmap(ipw->common_memory); |
| } |
| if (ipw->attr_memory) { |
| release_mem_region(ipw->request_attr_memory.Base, |
| ipw->request_attr_memory.Size); |
| iounmap(ipw->attr_memory); |
| } |
| if (ipw->common_memory) |
| pcmcia_release_window(ipw->link, ipw->handle_common_memory); |
| if (ipw->attr_memory) |
| pcmcia_release_window(ipw->link, ipw->handle_attr_memory); |
| |
| /* Break the link with Card Services */ |
| 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; |
| link->irq.Instance = ipw; |
| |
| /* Link this device into our device list. */ |
| link->dev_node = &ipw->nodes[0]; |
| |
| 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, |
| .drv = { .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; |
| |
| printk(KERN_INFO IPWIRELESS_PCCARD_NAME " " |
| IPWIRELESS_PCMCIA_VERSION " by " IPWIRELESS_PCMCIA_AUTHOR "\n"); |
| |
| 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) |
| { |
| printk(KERN_INFO IPWIRELESS_PCCARD_NAME " " |
| IPWIRELESS_PCMCIA_VERSION " removed\n"); |
| |
| 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"); |