/drivers/staging/comedi/drivers/ni_mio_cs.c
https://bitbucket.org/cyanogenmod/android_kernel_asus_tf300t · C · 459 lines · 324 code · 80 blank · 55 comment · 20 complexity · 401d1fb124ce67bbb8ab3e03594246ca MD5 · raw file
- /*
- comedi/drivers/ni_mio_cs.c
- Hardware driver for NI PCMCIA MIO E series cards
- COMEDI - Linux Control and Measurement Device Interface
- Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /*
- Driver: ni_mio_cs
- Description: National Instruments DAQCard E series
- Author: ds
- Status: works
- Devices: [National Instruments] DAQCard-AI-16XE-50 (ni_mio_cs),
- DAQCard-AI-16E-4, DAQCard-6062E, DAQCard-6024E, DAQCard-6036E
- Updated: Thu Oct 23 19:43:17 CDT 2003
- See the notes in the ni_atmio.o driver.
- */
- /*
- The real guts of the driver is in ni_mio_common.c, which is
- included by all the E series drivers.
- References for specifications:
- 341080a.pdf DAQCard E Series Register Level Programmer Manual
- */
- #include "../comedidev.h"
- #include <linux/delay.h>
- #include "ni_stc.h"
- #include "8255.h"
- #include <pcmcia/cistpl.h>
- #include <pcmcia/ds.h>
- #undef DEBUG
- #define ATMIO 1
- #undef PCIMIO
- /*
- * AT specific setup
- */
- #define NI_SIZE 0x20
- #define MAX_N_CALDACS 32
- static const struct ni_board_struct ni_boards[] = {
- {.device_id = 0x010d,
- .name = "DAQCard-ai-16xe-50",
- .n_adchan = 16,
- .adbits = 16,
- .ai_fifo_depth = 1024,
- .alwaysdither = 0,
- .gainlkup = ai_gain_8,
- .ai_speed = 5000,
- .n_aochan = 0,
- .aobits = 0,
- .ao_fifo_depth = 0,
- .ao_unipolar = 0,
- .num_p0_dio_channels = 8,
- .has_8255 = 0,
- .caldac = {dac8800, dac8043},
- },
- {.device_id = 0x010c,
- .name = "DAQCard-ai-16e-4",
- .n_adchan = 16,
- .adbits = 12,
- .ai_fifo_depth = 1024,
- .alwaysdither = 0,
- .gainlkup = ai_gain_16,
- .ai_speed = 4000,
- .n_aochan = 0,
- .aobits = 0,
- .ao_fifo_depth = 0,
- .ao_unipolar = 0,
- .num_p0_dio_channels = 8,
- .has_8255 = 0,
- .caldac = {mb88341}, /* verified */
- },
- {.device_id = 0x02c4,
- .name = "DAQCard-6062E",
- .n_adchan = 16,
- .adbits = 12,
- .ai_fifo_depth = 8192,
- .alwaysdither = 0,
- .gainlkup = ai_gain_16,
- .ai_speed = 2000,
- .n_aochan = 2,
- .aobits = 12,
- .ao_fifo_depth = 2048,
- .ao_range_table = &range_bipolar10,
- .ao_unipolar = 0,
- .ao_speed = 1176,
- .num_p0_dio_channels = 8,
- .has_8255 = 0,
- .caldac = {ad8804_debug}, /* verified */
- },
- {.device_id = 0x075e,
- .name = "DAQCard-6024E", /* specs incorrect! */
- .n_adchan = 16,
- .adbits = 12,
- .ai_fifo_depth = 1024,
- .alwaysdither = 0,
- .gainlkup = ai_gain_4,
- .ai_speed = 5000,
- .n_aochan = 2,
- .aobits = 12,
- .ao_fifo_depth = 0,
- .ao_range_table = &range_bipolar10,
- .ao_unipolar = 0,
- .ao_speed = 1000000,
- .num_p0_dio_channels = 8,
- .has_8255 = 0,
- .caldac = {ad8804_debug},
- },
- {.device_id = 0x0245,
- .name = "DAQCard-6036E", /* specs incorrect! */
- .n_adchan = 16,
- .adbits = 16,
- .ai_fifo_depth = 1024,
- .alwaysdither = 1,
- .gainlkup = ai_gain_4,
- .ai_speed = 5000,
- .n_aochan = 2,
- .aobits = 16,
- .ao_fifo_depth = 0,
- .ao_range_table = &range_bipolar10,
- .ao_unipolar = 0,
- .ao_speed = 1000000,
- .num_p0_dio_channels = 8,
- .has_8255 = 0,
- .caldac = {ad8804_debug},
- },
- #if 0
- {.device_id = 0x0000, /* unknown */
- .name = "DAQCard-6715",
- .n_adchan = 0,
- .n_aochan = 8,
- .aobits = 12,
- .ao_671x = 8192,
- .num_p0_dio_channels = 8,
- .caldac = {mb88341, mb88341},
- },
- #endif
- /* N.B. Update ni_mio_cs_ids[] when entries added above. */
- };
- #define interrupt_pin(a) 0
- #define IRQ_POLARITY 1
- #define NI_E_IRQ_FLAGS IRQF_SHARED
- struct ni_private {
- struct pcmcia_device *link;
- NI_PRIVATE_COMMON};
- #define devpriv ((struct ni_private *)dev->private)
- /* How we access registers */
- #define ni_writel(a, b) (outl((a), (b)+dev->iobase))
- #define ni_readl(a) (inl((a)+dev->iobase))
- #define ni_writew(a, b) (outw((a), (b)+dev->iobase))
- #define ni_readw(a) (inw((a)+dev->iobase))
- #define ni_writeb(a, b) (outb((a), (b)+dev->iobase))
- #define ni_readb(a) (inb((a)+dev->iobase))
- /* How we access windowed registers */
- /* We automatically take advantage of STC registers that can be
- * read/written directly in the I/O space of the board. The
- * DAQCard devices map the low 8 STC registers to iobase+addr*2. */
- static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
- {
- unsigned long flags;
- spin_lock_irqsave(&devpriv->window_lock, flags);
- if (addr < 8) {
- ni_writew(data, addr * 2);
- } else {
- ni_writew(addr, Window_Address);
- ni_writew(data, Window_Data);
- }
- spin_unlock_irqrestore(&devpriv->window_lock, flags);
- }
- static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
- {
- unsigned long flags;
- uint16_t ret;
- spin_lock_irqsave(&devpriv->window_lock, flags);
- if (addr < 8) {
- ret = ni_readw(addr * 2);
- } else {
- ni_writew(addr, Window_Address);
- ret = ni_readw(Window_Data);
- }
- spin_unlock_irqrestore(&devpriv->window_lock, flags);
- return ret;
- }
- static int mio_cs_attach(struct comedi_device *dev,
- struct comedi_devconfig *it);
- static int mio_cs_detach(struct comedi_device *dev);
- static struct comedi_driver driver_ni_mio_cs = {
- .driver_name = "ni_mio_cs",
- .module = THIS_MODULE,
- .attach = mio_cs_attach,
- .detach = mio_cs_detach,
- };
- #include "ni_mio_common.c"
- static int ni_getboardtype(struct comedi_device *dev,
- struct pcmcia_device *link);
- /* clean up allocated resources */
- /* called when driver is removed */
- static int mio_cs_detach(struct comedi_device *dev)
- {
- mio_common_detach(dev);
- /* PCMCIA layer frees the IO region */
- if (dev->irq)
- free_irq(dev->irq, dev);
- return 0;
- }
- static void mio_cs_config(struct pcmcia_device *link);
- static void cs_release(struct pcmcia_device *link);
- static void cs_detach(struct pcmcia_device *);
- static struct pcmcia_device *cur_dev = NULL;
- static int cs_attach(struct pcmcia_device *link)
- {
- cur_dev = link;
- mio_cs_config(link);
- return 0;
- }
- static void cs_release(struct pcmcia_device *link)
- {
- pcmcia_disable_device(link);
- }
- static void cs_detach(struct pcmcia_device *link)
- {
- DPRINTK("cs_detach(link=%p)\n", link);
- cs_release(link);
- }
- static int mio_cs_suspend(struct pcmcia_device *link)
- {
- DPRINTK("pm suspend\n");
- return 0;
- }
- static int mio_cs_resume(struct pcmcia_device *link)
- {
- DPRINTK("pm resume\n");
- return 0;
- }
- static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev, void *priv_data)
- {
- int base, ret;
- p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
- p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
- for (base = 0x000; base < 0x400; base += 0x20) {
- p_dev->resource[0]->start = base;
- ret = pcmcia_request_io(p_dev);
- if (!ret)
- return 0;
- }
- return -ENODEV;
- }
- static void mio_cs_config(struct pcmcia_device *link)
- {
- int ret;
- DPRINTK("mio_cs_config(link=%p)\n", link);
- link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
- ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
- if (ret) {
- dev_warn(&link->dev, "no configuration found\n");
- return;
- }
- if (!link->irq)
- dev_info(&link->dev, "no IRQ available\n");
- ret = pcmcia_enable_device(link);
- }
- static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
- {
- struct pcmcia_device *link;
- unsigned int irq;
- int ret;
- DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
- link = cur_dev; /* XXX hack */
- if (!link)
- return -EIO;
- dev->driver = &driver_ni_mio_cs;
- dev->iobase = link->resource[0]->start;
- irq = link->irq;
- printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
- dev->minor, dev->driver->driver_name, dev->iobase, irq);
- #if 0
- {
- int i;
- printk(" board fingerprint:");
- for (i = 0; i < 32; i += 2) {
- printk(" %04x %02x", inw(dev->iobase + i),
- inb(dev->iobase + i + 1));
- }
- printk("\n");
- printk(" board fingerprint (windowed):");
- for (i = 0; i < 10; i++)
- printk(" 0x%04x", win_in(i));
- printk("\n");
- }
- #endif
- dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
- printk(" %s", boardtype.name);
- dev->board_name = boardtype.name;
- ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
- "ni_mio_cs", dev);
- if (ret < 0) {
- printk(" irq not available\n");
- return -EINVAL;
- }
- dev->irq = irq;
- /* allocate private area */
- ret = ni_alloc_private(dev);
- if (ret < 0)
- return ret;
- devpriv->stc_writew = &mio_cs_win_out;
- devpriv->stc_readw = &mio_cs_win_in;
- devpriv->stc_writel = &win_out2;
- devpriv->stc_readl = &win_in2;
- ret = ni_E_init(dev, it);
- if (ret < 0)
- return ret;
- return 0;
- }
- static int ni_getboardtype(struct comedi_device *dev,
- struct pcmcia_device *link)
- {
- int i;
- for (i = 0; i < n_ni_boards; i++) {
- if (ni_boards[i].device_id == link->card_id)
- return i;
- }
- printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
- return 0;
- }
- #ifdef MODULE
- static const struct pcmcia_device_id ni_mio_cs_ids[] = {
- PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d), /* DAQCard-ai-16xe-50 */
- PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c), /* DAQCard-ai-16e-4 */
- PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4), /* DAQCard-6062E */
- PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e), /* DAQCard-6024E */
- PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245), /* DAQCard-6036E */
- PCMCIA_DEVICE_NULL
- };
- MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
- MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
- MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
- MODULE_LICENSE("GPL");
- struct pcmcia_driver ni_mio_cs_driver = {
- .probe = &cs_attach,
- .remove = &cs_detach,
- .suspend = &mio_cs_suspend,
- .resume = &mio_cs_resume,
- .id_table = ni_mio_cs_ids,
- .owner = THIS_MODULE,
- .name = "ni_mio_cs",
- };
- int init_module(void)
- {
- pcmcia_register_driver(&ni_mio_cs_driver);
- comedi_driver_register(&driver_ni_mio_cs);
- return 0;
- }
- void cleanup_module(void)
- {
- pcmcia_unregister_driver(&ni_mio_cs_driver);
- #if 0
- while (cur_dev != NULL)
- cs_detach(cur_dev->handle);
- #endif
- comedi_driver_unregister(&driver_ni_mio_cs);
- }
- #endif