diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_daq_dio24.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_daq_dio24.c | 130 |
1 files changed, 8 insertions, 122 deletions
diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c index 773ae2044e0e..c9c28584db67 100644 --- a/drivers/staging/comedi/drivers/ni_daq_dio24.c +++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c @@ -48,7 +48,6 @@ the PCMCIA interface. #include "8255.h" -#include <pcmcia/cs.h> #include <pcmcia/cistpl.h> #include <pcmcia/cisreg.h> #include <pcmcia/ds.h> @@ -187,47 +186,20 @@ static int dio24_detach(struct comedi_device *dev) return 0; }; -/* PCMCIA crap -- watch your words! */ - static void dio24_config(struct pcmcia_device *link); static void dio24_release(struct pcmcia_device *link); static int dio24_cs_suspend(struct pcmcia_device *p_dev); static int dio24_cs_resume(struct pcmcia_device *p_dev); -/* - 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 int dio24_cs_attach(struct pcmcia_device *); static void dio24_cs_detach(struct pcmcia_device *); -/* - You'll also need to prototype all the functions that will actually - be used to talk to your device. See 'memory_cs' for a good example - of a fully self-sufficient driver; the other drivers rely more or - less on other parts of the kernel. -*/ - struct local_info_t { struct pcmcia_device *link; int stop; struct bus_operations *bus; }; -/*====================================================================== - - dio24_cs_attach() creates an "instance" of the driver, allocating - local data structures for one device. The device is registered - with Card Services. - - The dev_link 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 dio24_cs_attach(struct pcmcia_device *link) { struct local_info_t *local; @@ -243,16 +215,6 @@ static int dio24_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* - General socket configuration defaults can go here. In this - client, we assume very little, and rely on the CIS for almost - everything. In most clients, many details (i.e., number, sizes, - and attributes of IO windows) are fixed by the nature of the - device, and can be hard-wired here. - */ - link->conf.Attributes = 0; - link->conf.IntType = INT_MEMORY_AND_IO; - pcmcia_cur_dev = link; dio24_config(link); @@ -260,15 +222,6 @@ static int dio24_cs_attach(struct pcmcia_device *link) return 0; } /* dio24_cs_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 dio24_cs_detach(struct pcmcia_device *link) { @@ -284,54 +237,13 @@ static void dio24_cs_detach(struct pcmcia_device *link) } /* dio24_cs_detach */ -/*====================================================================== - - dio24_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. - -======================================================================*/ - static int dio24_pcmcia_config_loop(struct pcmcia_device *p_dev, - cistpl_cftable_entry_t *cfg, - cistpl_cftable_entry_t *dflt, - unsigned int vcc, void *priv_data) { - if (cfg->index == 0) - return -ENODEV; - - /* Does this card need audio output? */ - if (cfg->flags & CISTPL_CFTABLE_AUDIO) { - p_dev->conf.Attributes |= CONF_ENABLE_SPKR; - p_dev->conf.Status = CCSR_AUDIO_ENA; - } - - /* Do we need to allocate an interrupt? */ - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; - - /* IO window settings */ - p_dev->resource[0]->end = p_dev->resource[1]->end = 0; - if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { - cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; - p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK; - p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; - p_dev->resource[0]->flags |= - pcmcia_io_cfg_data_width(io->flags); - p_dev->resource[0]->start = io->win[0].base; - p_dev->resource[0]->end = io->win[0].len; - if (io->nwin > 1) { - p_dev->resource[1]->flags = p_dev->resource[0]->flags; - p_dev->resource[1]->start = io->win[1].base; - p_dev->resource[1]->end = io->win[1].len; - } - /* This reserves IO space but doesn't actually enable it */ - if (pcmcia_request_io(p_dev) != 0) - return -ENODEV; - } + if (p_dev->config_index == 0) + return -EINVAL; - /* If we got this far, we're cool! */ - return 0; + return pcmcia_request_io(p_dev); } static void dio24_config(struct pcmcia_device *link) @@ -342,6 +254,9 @@ static void dio24_config(struct pcmcia_device *link) dev_dbg(&link->dev, "dio24_config\n"); + link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_AUDIO | + CONF_AUTO_SET_IO; + ret = pcmcia_loop_config(link, dio24_pcmcia_config_loop, NULL); if (ret) { dev_warn(&link->dev, "no configuration found\n"); @@ -351,25 +266,10 @@ static void dio24_config(struct pcmcia_device *link) if (!link->irq) goto failed; - /* - 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. - */ - ret = pcmcia_request_configuration(link, &link->conf); + ret = pcmcia_enable_device(link); if (ret) goto failed; - /* Finally, report what we've done */ - dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); - if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq); - if (link->resource[0]) - printk(" & %pR", link->resource[0]); - if (link->resource[1]) - printk(" & %pR", link->resource[1]); - printk("\n"); - return; failed: @@ -385,18 +285,6 @@ static void dio24_release(struct pcmcia_device *link) pcmcia_disable_device(link); } /* dio24_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 dio24_cs_suspend(struct pcmcia_device *link) { struct local_info_t *local = link->priv; @@ -435,9 +323,7 @@ struct pcmcia_driver dio24_cs_driver = { .resume = dio24_cs_resume, .id_table = dio24_cs_ids, .owner = THIS_MODULE, - .drv = { - .name = "ni_daq_dio24", - }, + .name = "ni_daq_dio24", }; static int __init init_dio24_cs(void) |