diff options
Diffstat (limited to 'drivers/isdn/hisax/teles_cs.c')
| -rw-r--r-- | drivers/isdn/hisax/teles_cs.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/teles_cs.c b/drivers/isdn/hisax/teles_cs.c new file mode 100644 index 000000000..b8dd14958 --- /dev/null +++ b/drivers/isdn/hisax/teles_cs.c @@ -0,0 +1,200 @@ +/* $Id: teles_cs.c,v 1.1.2.2 2004/01/25 15:07:06 keil Exp $ */ +/*====================================================================== + + A teles S0 PCMCIA client driver + + Based on skeleton by David Hinds, dhinds@allegro.stanford.edu + Written by Christof Petig, christof.petig@wtal.de + + Also inspired by ELSA PCMCIA driver + by Klaus Lichtenwalder <Lichtenwalder@ACM.org> + + Extensions to new hisax_pcmcia by Karsten Keil + + minor changes to be compatible with kernel 2.4.x + by Jan.Schubert@GMX.li + + ======================================================================*/ + +#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 <asm/io.h> + +#include <pcmcia/cistpl.h> +#include <pcmcia/cisreg.h> +#include <pcmcia/ds.h> +#include "hisax_cfg.h" + +MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Teles PCMCIA cards"); +MODULE_AUTHOR("Christof Petig, christof.petig@wtal.de, Karsten Keil, kkeil@suse.de"); +MODULE_LICENSE("GPL"); + + +/*====================================================================*/ + +/* Parameters that can be set with 'insmod' */ + +static int protocol = 2; /* EURO-ISDN Default */ +module_param(protocol, int, 0); + +static int teles_cs_config(struct pcmcia_device *link); +static void teles_cs_release(struct pcmcia_device *link); +static void teles_detach(struct pcmcia_device *p_dev); + +typedef struct local_info_t { + struct pcmcia_device *p_dev; + int busy; + int cardnr; +} local_info_t; + +static int teles_probe(struct pcmcia_device *link) +{ + local_info_t *local; + + dev_dbg(&link->dev, "teles_attach()\n"); + + /* Allocate space for private device-specific data */ + local = kzalloc(sizeof(local_info_t), GFP_KERNEL); + if (!local) return -ENOMEM; + local->cardnr = -1; + + local->p_dev = link; + link->priv = local; + + link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; + + return teles_cs_config(link); +} /* teles_attach */ + +static void teles_detach(struct pcmcia_device *link) +{ + local_info_t *info = link->priv; + + dev_dbg(&link->dev, "teles_detach(0x%p)\n", link); + + info->busy = 1; + teles_cs_release(link); + + kfree(info); +} /* teles_detach */ + +static int teles_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data) +{ + int j; + + p_dev->io_lines = 5; + p_dev->resource[0]->end = 96; + p_dev->resource[0]->flags &= IO_DATA_PATH_WIDTH; + p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; + + if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) { + printk(KERN_INFO "(teles_cs: looks like the 96 model)\n"); + if (!pcmcia_request_io(p_dev)) + return 0; + } else { + printk(KERN_INFO "(teles_cs: looks like the 97 model)\n"); + for (j = 0x2f0; j > 0x100; j -= 0x10) { + p_dev->resource[0]->start = j; + if (!pcmcia_request_io(p_dev)) + return 0; + } + } + return -ENODEV; +} + +static int teles_cs_config(struct pcmcia_device *link) +{ + int i; + IsdnCard_t icard; + + dev_dbg(&link->dev, "teles_config(0x%p)\n", link); + + i = pcmcia_loop_config(link, teles_cs_configcheck, NULL); + if (i != 0) + goto cs_failed; + + if (!link->irq) + goto cs_failed; + + i = pcmcia_enable_device(link); + if (i != 0) + goto cs_failed; + + icard.para[0] = link->irq; + icard.para[1] = link->resource[0]->start; + icard.protocol = protocol; + icard.typ = ISDN_CTYPE_TELESPCMCIA; + + i = hisax_init_pcmcia(link, &(((local_info_t *)link->priv)->busy), &icard); + if (i < 0) { + printk(KERN_ERR "teles_cs: failed to initialize Teles PCMCIA %d at i/o %#x\n", + i, (unsigned int) link->resource[0]->start); + teles_cs_release(link); + return -ENODEV; + } + + ((local_info_t *)link->priv)->cardnr = i; + return 0; + +cs_failed: + teles_cs_release(link); + return -ENODEV; +} /* teles_cs_config */ + +static void teles_cs_release(struct pcmcia_device *link) +{ + local_info_t *local = link->priv; + + dev_dbg(&link->dev, "teles_cs_release(0x%p)\n", link); + + if (local) { + if (local->cardnr >= 0) { + /* no unregister function with hisax */ + HiSax_closecard(local->cardnr); + } + } + + pcmcia_disable_device(link); +} /* teles_cs_release */ + +static int teles_suspend(struct pcmcia_device *link) +{ + local_info_t *dev = link->priv; + + dev->busy = 1; + + return 0; +} + +static int teles_resume(struct pcmcia_device *link) +{ + local_info_t *dev = link->priv; + + dev->busy = 0; + + return 0; +} + + +static const struct pcmcia_device_id teles_ids[] = { + PCMCIA_DEVICE_PROD_ID12("TELES", "S0/PC", 0x67b50eae, 0xe9e70119), + PCMCIA_DEVICE_NULL, +}; +MODULE_DEVICE_TABLE(pcmcia, teles_ids); + +static struct pcmcia_driver teles_cs_driver = { + .owner = THIS_MODULE, + .name = "teles_cs", + .probe = teles_probe, + .remove = teles_detach, + .id_table = teles_ids, + .suspend = teles_suspend, + .resume = teles_resume, +}; +module_pcmcia_driver(teles_cs_driver); |