diff options
Diffstat (limited to 'drivers/staging/isdn/avm/avm_cs.c')
| -rw-r--r-- | drivers/staging/isdn/avm/avm_cs.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/drivers/staging/isdn/avm/avm_cs.c b/drivers/staging/isdn/avm/avm_cs.c new file mode 100644 index 000000000000..62b8030ee331 --- /dev/null +++ b/drivers/staging/isdn/avm/avm_cs.c @@ -0,0 +1,166 @@ +/* $Id: avm_cs.c,v 1.4.6.3 2001/09/23 22:24:33 kai Exp $ + * + * A PCMCIA client driver for AVM B1/M1/M2 + * + * Copyright 1999 by Carsten Paeth <calle@calle.de> + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/ptrace.h> +#include <linux/string.h> +#include <linux/tty.h> +#include <linux/serial.h> +#include <linux/major.h> +#include <asm/io.h> + +#include <pcmcia/cistpl.h> +#include <pcmcia/ciscode.h> +#include <pcmcia/ds.h> +#include <pcmcia/cisreg.h> + +#include <linux/skbuff.h> +#include <linux/capi.h> +#include <linux/b1lli.h> +#include <linux/b1pcmcia.h> + +/*====================================================================*/ + +MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2"); +MODULE_AUTHOR("Carsten Paeth"); +MODULE_LICENSE("GPL"); + +/*====================================================================*/ + +static int avmcs_config(struct pcmcia_device *link); +static void avmcs_release(struct pcmcia_device *link); +static void avmcs_detach(struct pcmcia_device *p_dev); + +static int avmcs_probe(struct pcmcia_device *p_dev) +{ + /* General socket configuration */ + p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; + p_dev->config_index = 1; + p_dev->config_regs = PRESENT_OPTION; + + return avmcs_config(p_dev); +} /* avmcs_attach */ + + +static void avmcs_detach(struct pcmcia_device *link) +{ + avmcs_release(link); +} /* avmcs_detach */ + +static int avmcs_configcheck(struct pcmcia_device *p_dev, void *priv_data) +{ + p_dev->resource[0]->end = 16; + p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; + p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; + + return pcmcia_request_io(p_dev); +} + +static int avmcs_config(struct pcmcia_device *link) +{ + int i = -1; + char devname[128]; + int cardtype; + int (*addcard)(unsigned int port, unsigned irq); + + devname[0] = 0; + if (link->prod_id[1]) + strlcpy(devname, link->prod_id[1], sizeof(devname)); + + /* + * find IO port + */ + if (pcmcia_loop_config(link, avmcs_configcheck, NULL)) + return -ENODEV; + + do { + if (!link->irq) { + /* undo */ + pcmcia_disable_device(link); + break; + } + + /* + * configure the PCMCIA socket + */ + i = pcmcia_enable_device(link); + if (i != 0) { + pcmcia_disable_device(link); + break; + } + + } while (0); + + if (devname[0]) { + char *s = strrchr(devname, ' '); + if (!s) + s = devname; + else s++; + if (strcmp("M1", s) == 0) { + cardtype = AVM_CARDTYPE_M1; + } else if (strcmp("M2", s) == 0) { + cardtype = AVM_CARDTYPE_M2; + } else { + cardtype = AVM_CARDTYPE_B1; + } + } else + cardtype = AVM_CARDTYPE_B1; + + /* If any step failed, release any partially configured state */ + if (i != 0) { + avmcs_release(link); + return -ENODEV; + } + + + switch (cardtype) { + case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break; + case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break; + default: + case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break; + } + if ((i = (*addcard)(link->resource[0]->start, link->irq)) < 0) { + dev_err(&link->dev, + "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n", + (unsigned int) link->resource[0]->start, link->irq); + avmcs_release(link); + return -ENODEV; + } + return 0; + +} /* avmcs_config */ + + +static void avmcs_release(struct pcmcia_device *link) +{ + b1pcmcia_delcard(link->resource[0]->start, link->irq); + pcmcia_disable_device(link); +} /* avmcs_release */ + + +static const struct pcmcia_device_id avmcs_ids[] = { + PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335), + PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430), + PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a), + PCMCIA_DEVICE_NULL +}; +MODULE_DEVICE_TABLE(pcmcia, avmcs_ids); + +static struct pcmcia_driver avmcs_driver = { + .owner = THIS_MODULE, + .name = "avm_cs", + .probe = avmcs_probe, + .remove = avmcs_detach, + .id_table = avmcs_ids, +}; +module_pcmcia_driver(avmcs_driver); |