diff options
Diffstat (limited to 'drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c')
| -rw-r--r-- | drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c | 513 |
1 files changed, 513 insertions, 0 deletions
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c new file mode 100644 index 0000000..2163eae --- /dev/null +++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c @@ -0,0 +1,513 @@ +/*--------------------------------------------------------------------------- + FT1000 driver for Flarion Flash OFDM NIC Device + + Copyright (C) 1999 David A. Hinds. All Rights Reserved. + Copyright (C) 2002 Flarion Technologies, All rights reserved. + Copyright (C) 2006 Patrik Ostrihon, All rights reserved. + Copyright (C) 2006 ProWeb Consulting, a.s, All rights reserved. + + The initial developer of the original code is David A. Hinds + <dahinds@users.sourceforge.net>. Portions created by David A. Hinds. + + This file was modified to support the Flarion Flash OFDM NIC Device + by Wai Chan (w.chan@flarion.com). + + Port for kernel 2.6 created by Patrik Ostrihon (patrik.ostrihon@pwc.sk) + + 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. You should have received a copy of the GNU General Public + License along with this program; if not, write to the + Free Software Foundation, Inc., 59 Temple Place - + Suite 330, Boston, MA 02111-1307, USA. +-----------------------------------------------------------------------------*/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/ptrace.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/timer.h> +#include <linux/ioport.h> +#include <linux/delay.h> + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +//#include <pcmcia/version.h> // Slavius 21.10.2009 removed from kernel +#include <pcmcia/cs_types.h> +#include <pcmcia/cs.h> +#include <pcmcia/cistpl.h> +#include <pcmcia/cisreg.h> +#include <pcmcia/ds.h> + +#include <asm/io.h> +#include <asm/system.h> +#include <asm/byteorder.h> +#include <asm/uaccess.h> + +#include "ft1000_cs.h" // Slavius 21.10.2009 because CS_SUCCESS constant is missing due to removed pcmcia/version.h + +/*====================================================================*/ + +/* Module parameters */ + +#define INT_MODULE_PARM(n, v) static int n = v; MODULE_PARM(n, "i") + +MODULE_AUTHOR("Wai Chan"); +MODULE_DESCRIPTION("FT1000 PCMCIA driver"); +MODULE_LICENSE("GPL"); + +/* Newer, simpler way of listing specific interrupts */ + +/* The old way: bit map of interrupts to choose from */ +/* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */ + +/* + All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If + you do not define PCMCIA_DEBUG at all, all the debug code will be + left out. If you compile with PCMCIA_DEBUG=0, the debug code will + be present but disabled. +*/ +#ifdef FT_DEBUG +#define DEBUG(n, args...) printk(KERN_DEBUG args) +#else +#define DEBUG(n, args...) +#endif + +/*====================================================================*/ + +struct net_device *init_ft1000_card(int, int, unsigned char *, + void *ft1000_reset, struct pcmcia_device * link, + struct device *fdev); +void stop_ft1000_card(struct net_device *); + +static int ft1000_config(struct pcmcia_device *link); +static void ft1000_release(struct pcmcia_device *link); + +/* + The attach() and detach() entry points are used to create and destroy + "instances" of the driver, where each instance represents everything + needed to manage one actual PCMCIA card. +*/ + +static void ft1000_detach(struct pcmcia_device *link); +static int ft1000_attach(struct pcmcia_device *link); + +typedef struct local_info_t { + struct pcmcia_device *link; + struct net_device *dev; +} local_info_t; + +#define MAX_ASIC_RESET_CNT 10 +#define COR_DEFAULT 0x55 + +/*====================================================================*/ + +static void ft1000_reset(struct pcmcia_device * link) +{ + conf_reg_t reg; + + DEBUG(0, "ft1000_cs:ft1000_reset is called................\n"); + + /* Soft-Reset card */ + reg.Action = CS_WRITE; + reg.Offset = CISREG_COR; + reg.Value = COR_SOFT_RESET; + pcmcia_access_configuration_register(link, ®); + + /* Wait until the card has acknowledged our reset */ + udelay(2); + + /* Restore original COR configuration index */ + /* Need at least 2 write to respond */ + reg.Action = CS_WRITE; + reg.Offset = CISREG_COR; + reg.Value = COR_DEFAULT; + pcmcia_access_configuration_register(link, ®); + + /* Wait until the card has finished restarting */ + udelay(1); + + reg.Action = CS_WRITE; + reg.Offset = CISREG_COR; + reg.Value = COR_DEFAULT; + pcmcia_access_configuration_register(link, ®); + + /* Wait until the card has finished restarting */ + udelay(1); + + reg.Action = CS_WRITE; + reg.Offset = CISREG_COR; + reg.Value = COR_DEFAULT; + pcmcia_access_configuration_register(link, ®); + + /* Wait until the card has finished restarting */ + udelay(1); + +} + +/*====================================================================*/ + +static int get_tuple_first(struct pcmcia_device *link, tuple_t * tuple, + cisparse_t * parse) +{ + int i; + i = pcmcia_get_first_tuple(link, tuple); + if (i != CS_SUCCESS) + return i; + i = pcmcia_get_tuple_data(link, tuple); + if (i != CS_SUCCESS) + return i; + return pcmcia_parse_tuple(tuple, parse); // Slavius 21.10.2009 removed unused link parameter +} + +static int get_tuple_next(struct pcmcia_device *link, tuple_t * tuple, + cisparse_t * parse) +{ + int i; + i = pcmcia_get_next_tuple(link, tuple); + if (i != CS_SUCCESS) + return i; + i = pcmcia_get_tuple_data(link, tuple); + if (i != CS_SUCCESS) + return i; + return pcmcia_parse_tuple(tuple, parse); // Slavius 21.10.2009 removed unused link parameter +} + +/*====================================================================== + + +======================================================================*/ + +static int ft1000_attach(struct pcmcia_device *link) +{ + + local_info_t *local; + + DEBUG(0, "ft1000_cs: ft1000_attach()\n"); + + local = kmalloc(sizeof(local_info_t), GFP_KERNEL); + if (!local) { + return -ENOMEM; + } + memset(local, 0, sizeof(local_info_t)); + local->link = link; + + link->priv = local; + local->dev = NULL; + + link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; + link->irq.IRQInfo1 = IRQ_LEVEL_ID; + link->conf.Attributes = CONF_ENABLE_IRQ; + link->conf.IntType = INT_MEMORY_AND_IO; + link->irq.Handler = NULL; + + return ft1000_config(link); +} /* ft1000_attach */ + +/*====================================================================== + + 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 ft1000_detach(struct pcmcia_device *link) +{ + struct net_device *dev = ((local_info_t *) link->priv)->dev; + + DEBUG(0, "ft1000_cs: ft1000_detach(0x%p)\n", link); + + if (link == NULL) { + DEBUG(0,"ft1000_cs:ft1000_detach: Got a NULL pointer\n"); + return; + } + + if (dev) { + stop_ft1000_card(dev); + } + + ft1000_release(link); + + /* This points to the parent local_info_t struct */ + free_netdev(dev); + +} /* ft1000_detach */ + +/*====================================================================== + + ft1000_config() is scheduled to run after a CARD_INSERTION event + is received, to configure the PCMCIA socket, and to make the + device available to the system. + +======================================================================*/ + +#define CS_CHECK(fn, ret) \ + do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) + +#define CFG_CHECK(fn, ret) \ + last_fn = (fn); if ((last_ret = (ret)) != 0) goto next_entry + +static int ft1000_config(struct pcmcia_device * link) +{ + tuple_t tuple; + cisparse_t parse; + int last_fn, last_ret, i; + u_char buf[64]; + cistpl_lan_node_id_t *node_id; + cistpl_cftable_entry_t dflt = { 0 }; + cistpl_cftable_entry_t *cfg; + unsigned char mac_address[6]; + + DEBUG(0, "ft1000_cs: ft1000_config(0x%p)\n", link); + + /* + This reads the card's CONFIG tuple to find its configuration + registers. + */ +// tuple.DesiredTuple = CISTPL_CONFIG; +// tuple.Attributes = 0; + tuple.TupleData = buf; + tuple.TupleDataMax = sizeof(buf); + tuple.TupleOffset = 0; +// CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple)); +// CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple)); +// CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse)); +// link->conf.ConfigBase = parse.config.base; +// link->conf.Present = parse.config.rmask[0]; + + /* + In this loop, we scan the CIS for configuration table entries, + each of which describes a valid card configuration, including + voltage, IO window, memory window, and interrupt settings. + + We make no assumptions about the card to be configured: we use + just the information available in the CIS. In an ideal world, + this would work for any PCMCIA card, but it requires a complete + and accurate CIS. In practice, a driver usually "knows" most of + these things without consulting the CIS, and most client drivers + will only use the CIS to fill in implementation-defined details. + */ + tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; + tuple.Attributes = 0; + CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple)); + while (1) { + cfg = &(parse.cftable_entry); + CFG_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple)); + CFG_CHECK(ParseTuple, + pcmcia_parse_tuple(&tuple, &parse)); // Slavius 21.10.2009 removed unused link parameter + + if (cfg->flags & CISTPL_CFTABLE_DEFAULT) + dflt = *cfg; + if (cfg->index == 0) + goto next_entry; + link->conf.ConfigIndex = cfg->index; + + /* Do we need to allocate an interrupt? */ + if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) + link->conf.Attributes |= CONF_ENABLE_IRQ; + + /* IO window settings */ + link->io.NumPorts1 = link->io.NumPorts2 = 0; + if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { + cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; + link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; + if (!(io->flags & CISTPL_IO_8BIT)) { + DEBUG(0, "ft1000_cs: IO_DATA_PATH_WIDTH_16\n"); + link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; + } + if (!(io->flags & CISTPL_IO_16BIT)) { + DEBUG(0, "ft1000_cs: IO_DATA_PATH_WIDTH_8\n"); + link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; + } + link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; + link->io.BasePort1 = io->win[0].base; + link->io.NumPorts1 = io->win[0].len; + if (io->nwin > 1) { + link->io.Attributes2 = link->io.Attributes1; + link->io.BasePort2 = io->win[1].base; + link->io.NumPorts2 = io->win[1].len; + } + /* This reserves IO space but doesn't actually enable it */ + pcmcia_request_io(link, &link->io); + } + + break; + + next_entry: + last_ret = pcmcia_get_next_tuple(link, &tuple); + } + if (last_ret != CS_SUCCESS) { + cs_error(link, RequestIO, last_ret); + goto failed; + } + + /* + Allocate an interrupt line. Note that this does not assign a + handler to the interrupt, unless the 'Handler' member of the + irq structure is initialized. + */ + CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); + + /* + This actually configures the PCMCIA socket -- setting up + the I/O windows and the interrupt mapping, and putting the + card and host interface into "Memory and IO" mode. + */ + CS_CHECK(RequestConfiguration, + pcmcia_request_configuration(link, &link->conf)); + + /* Get MAC address from tuples */ + + tuple.Attributes = tuple.TupleOffset = 0; + tuple.TupleData = buf; + tuple.TupleDataMax = sizeof(buf); + + /* Check for a LAN function extension tuple */ + tuple.DesiredTuple = CISTPL_FUNCE; + i = get_tuple_first(link, &tuple, &parse); + while (i == CS_SUCCESS) { + if (parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID) + break; + i = get_tuple_next(link, &tuple, &parse); + } + + if (i == CS_SUCCESS) { + node_id = (cistpl_lan_node_id_t *) parse.funce.data; + if (node_id->nb == 6) { + for (i = 0; i < 6; i++) + mac_address[i] = node_id->id[i]; + } + } + + ((local_info_t *) link->priv)->dev = + init_ft1000_card(link->irq.AssignedIRQ, link->io.BasePort1, + &mac_address[0], ft1000_reset, link, + &handle_to_dev(link)); + + /* + At this point, the dev_node_t structure(s) need to be + initialized and arranged in a linked list at link->dev. + */ + + /* Finally, report what we've done */ + + return 0; + +cs_failed: + cs_error(link, last_fn, last_ret); +failed: + ft1000_release(link); + return -ENODEV; + +} /* ft1000_config */ + +/*====================================================================== + + After a card is removed, ft1000_release() will unregister the + device, and release the PCMCIA configuration. If the device is + still open, this will be postponed until it is closed. + +======================================================================*/ + +static void ft1000_release(struct pcmcia_device * link) +{ + + DEBUG(0, "ft1000_cs: ft1000_release(0x%p)\n", link); + + /* + If the device is currently in use, we won't release until it + is actually closed, because until then, we can't be sure that + no one will try to access the device or its data structures. + */ + + /* Unlink the device chain */ + link->dev_node = NULL; + + /* + In a normal driver, additional code may be needed to release + other kernel data structures associated with this device. + */ + + /* Don't bother checking to see if these succeed or not */ + + pcmcia_disable_device(link); +} /* ft1000_release */ + +/*====================================================================== + + The card status event handler. Mostly, this schedules other + stuff to run after an event is received. + + When a CARD_REMOVAL event is received, we immediately set a + private flag to block future accesses to this device. All the + functions that actually access the device should check this flag + to make sure the card is still present. + +======================================================================*/ + +static int ft1000_suspend(struct pcmcia_device *link) +{ + struct net_device *dev = ((local_info_t *) link->priv)->dev; + + DEBUG(1, "ft1000_cs: ft1000_event(0x%06x)\n", event); + + if (link->open) + netif_device_detach(dev); + return 0; +} + +static int ft1000_resume(struct pcmcia_device *link) +{ +/* struct net_device *dev = link->priv; + */ + return 0; +} + + + +/*====================================================================*/ + +static struct pcmcia_device_id ft1000_ids[] = { + PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x0100), + PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x1000), + PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x1300), + PCMCIA_DEVICE_NULL, +}; + +MODULE_DEVICE_TABLE(pcmcia, ft1000_ids); + +static struct pcmcia_driver ft1000_cs_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "ft1000_cs", + }, + .probe = ft1000_attach, + .remove = ft1000_detach, + .id_table = ft1000_ids, + .suspend = ft1000_suspend, + .resume = ft1000_resume, +}; + +static int __init init_ft1000_cs(void) +{ + DEBUG(0, "ft1000_cs: loading\n"); + return pcmcia_register_driver(&ft1000_cs_driver); +} + +static void __exit exit_ft1000_cs(void) +{ + DEBUG(0, "ft1000_cs: unloading\n"); + pcmcia_unregister_driver(&ft1000_cs_driver); +} + +module_init(init_ft1000_cs); +module_exit(exit_ft1000_cs); |
