|  | /* | 
|  | * 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; | 
|  | int ret = pcmcia_reset_card(link->socket); | 
|  |  | 
|  | if (ret != 0) | 
|  | cs_error(link, ResetCard, ret); | 
|  | } | 
|  |  | 
|  | 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 config_ipwireless(struct ipw_dev *ipw) | 
|  | { | 
|  | struct pcmcia_device *link = ipw->link; | 
|  | int ret; | 
|  | tuple_t tuple; | 
|  | unsigned short buf[64]; | 
|  | cisparse_t parse; | 
|  | unsigned short cor_value; | 
|  | memreq_t memreq_attr_memory; | 
|  | memreq_t memreq_common_memory; | 
|  |  | 
|  | ipw->is_v2_card = 0; | 
|  |  | 
|  | tuple.Attributes = 0; | 
|  | tuple.TupleData = (cisdata_t *) buf; | 
|  | tuple.TupleDataMax = sizeof(buf); | 
|  | tuple.TupleOffset = 0; | 
|  |  | 
|  | tuple.DesiredTuple = RETURN_FIRST_TUPLE; | 
|  |  | 
|  | ret = pcmcia_get_first_tuple(link, &tuple); | 
|  |  | 
|  | while (ret == 0) { | 
|  | ret = pcmcia_get_tuple_data(link, &tuple); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, GetTupleData, ret); | 
|  | goto exit0; | 
|  | } | 
|  | ret = pcmcia_get_next_tuple(link, &tuple); | 
|  | } | 
|  |  | 
|  | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | 
|  |  | 
|  | ret = pcmcia_get_first_tuple(link, &tuple); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, GetFirstTuple, ret); | 
|  | goto exit0; | 
|  | } | 
|  |  | 
|  | ret = pcmcia_get_tuple_data(link, &tuple); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, GetTupleData, ret); | 
|  | goto exit0; | 
|  | } | 
|  |  | 
|  | ret = pcmcia_parse_tuple(&tuple, &parse); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, ParseTuple, ret); | 
|  | goto exit0; | 
|  | } | 
|  |  | 
|  | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | 
|  | link->io.BasePort1 = parse.cftable_entry.io.win[0].base; | 
|  | link->io.NumPorts1 = parse.cftable_entry.io.win[0].len; | 
|  | link->io.IOAddrLines = 16; | 
|  |  | 
|  | link->irq.IRQInfo1 = parse.cftable_entry.irq.IRQInfo1; | 
|  |  | 
|  | /* 0x40 causes it to generate level mode interrupts. */ | 
|  | /* 0x04 enables IREQ pin. */ | 
|  | cor_value = parse.cftable_entry.index | 0x44; | 
|  | link->conf.ConfigIndex = cor_value; | 
|  |  | 
|  | /* IRQ and I/O settings */ | 
|  | tuple.DesiredTuple = CISTPL_CONFIG; | 
|  |  | 
|  | ret = pcmcia_get_first_tuple(link, &tuple); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, GetFirstTuple, ret); | 
|  | goto exit0; | 
|  | } | 
|  |  | 
|  | ret = pcmcia_get_tuple_data(link, &tuple); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, GetTupleData, ret); | 
|  | goto exit0; | 
|  | } | 
|  |  | 
|  | ret = pcmcia_parse_tuple(&tuple, &parse); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, GetTupleData, ret); | 
|  | goto exit0; | 
|  | } | 
|  | link->conf.Attributes = CONF_ENABLE_IRQ; | 
|  | link->conf.ConfigBase = parse.config.base; | 
|  | link->conf.Present = parse.config.rmask[0]; | 
|  | 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; | 
|  |  | 
|  | ret = pcmcia_request_io(link, &link->io); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, RequestIO, ret); | 
|  | goto exit0; | 
|  | } | 
|  |  | 
|  | request_region(link->io.BasePort1, link->io.NumPorts1, | 
|  | IPWIRELESS_PCCARD_NAME); | 
|  |  | 
|  | /* memory settings */ | 
|  |  | 
|  | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | 
|  |  | 
|  | ret = pcmcia_get_first_tuple(link, &tuple); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, GetFirstTuple, ret); | 
|  | goto exit1; | 
|  | } | 
|  |  | 
|  | ret = pcmcia_get_tuple_data(link, &tuple); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, GetTupleData, ret); | 
|  | goto exit1; | 
|  | } | 
|  |  | 
|  | ret = pcmcia_parse_tuple(&tuple, &parse); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, ParseTuple, ret); | 
|  | goto exit1; | 
|  | } | 
|  |  | 
|  | if (parse.cftable_entry.mem.nwin > 0) { | 
|  | ipw->request_common_memory.Attributes = | 
|  | WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE; | 
|  | ipw->request_common_memory.Base = | 
|  | parse.cftable_entry.mem.win[0].host_addr; | 
|  | ipw->request_common_memory.Size = parse.cftable_entry.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(&link, &ipw->request_common_memory, | 
|  | &ipw->handle_common_memory); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, RequestWindow, ret); | 
|  | goto exit1; | 
|  | } | 
|  |  | 
|  | memreq_common_memory.CardOffset = | 
|  | parse.cftable_entry.mem.win[0].card_addr; | 
|  | memreq_common_memory.Page = 0; | 
|  |  | 
|  | ret = pcmcia_map_mem_page(ipw->handle_common_memory, | 
|  | &memreq_common_memory); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, MapMemPage, ret); | 
|  | goto exit1; | 
|  | } | 
|  |  | 
|  | ipw->is_v2_card = | 
|  | parse.cftable_entry.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(&link, &ipw->request_attr_memory, | 
|  | &ipw->handle_attr_memory); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, RequestWindow, ret); | 
|  | goto exit2; | 
|  | } | 
|  |  | 
|  | memreq_attr_memory.CardOffset = 0; | 
|  | memreq_attr_memory.Page = 0; | 
|  |  | 
|  | ret = pcmcia_map_mem_page(ipw->handle_attr_memory, | 
|  | &memreq_attr_memory); | 
|  |  | 
|  | if (ret != 0) { | 
|  | cs_error(link, MapMemPage, ret); | 
|  | goto exit2; | 
|  | } | 
|  |  | 
|  | 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); | 
|  | } | 
|  |  | 
|  | 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) { | 
|  | cs_error(link, RequestIRQ, ret); | 
|  | goto exit3; | 
|  | } | 
|  |  | 
|  | 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 exit3; | 
|  |  | 
|  | ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network, | 
|  | ipw->nodes); | 
|  | if (!ipw->tty) | 
|  | goto exit3; | 
|  |  | 
|  | 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) { | 
|  | cs_error(link, RequestConfiguration, ret); | 
|  | goto exit4; | 
|  | } | 
|  |  | 
|  | link->dev_node = &ipw->nodes[0]; | 
|  |  | 
|  | return 0; | 
|  |  | 
|  | exit4: | 
|  | pcmcia_disable_device(link); | 
|  | exit3: | 
|  | if (ipw->attr_memory) { | 
|  | release_mem_region(ipw->request_attr_memory.Base, | 
|  | ipw->request_attr_memory.Size); | 
|  | iounmap(ipw->attr_memory); | 
|  | pcmcia_release_window(ipw->handle_attr_memory); | 
|  | pcmcia_disable_device(link); | 
|  | } | 
|  | 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(ipw->handle_common_memory); | 
|  | } | 
|  | exit1: | 
|  | pcmcia_disable_device(link); | 
|  | exit0: | 
|  | 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->handle_common_memory); | 
|  | if (ipw->attr_memory) | 
|  | pcmcia_release_window(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) { | 
|  | cs_error(link, RegisterClient, ret); | 
|  | 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"); |