/* comedi/drivers/ni_atmio.c Hardware driver for NI AT-MIO E series cards COMEDI - Linux Control and Measurement Device Interface Copyright (C) 1997-2001 David A. Schleef 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_atmio Description: National Instruments AT-MIO-E series Author: ds Devices: [National Instruments] AT-MIO-16E-1 (ni_atmio), AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3, AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10 Status: works Updated: Thu May 1 20:03:02 CDT 2003 The driver has 2.6 kernel isapnp support, and will automatically probe for a supported board if the I/O base is left unspecified with comedi_config. However, many of the isapnp id numbers are unknown. If your board is not recognized, please send the output of 'cat /proc/isapnp' (you may need to modprobe the isa-pnp module for /proc/isapnp to exist) so the id numbers for your board can be added to the driver. Otherwise, you can use the isapnptools package to configure your board. Use isapnp to configure the I/O base and IRQ for the board, and then pass the same values as parameters in comedi_config. A sample isapnp.conf file is included in the etc/ directory of Comedilib. Comedilib includes a utility to autocalibrate these boards. The boards seem to boot into a state where the all calibration DACs are at one extreme of their range, thus the default calibration is terrible. Calibration at boot is strongly encouraged. To use the extended digital I/O on some of the boards, enable the 8255 driver when configuring the Comedi source tree. External triggering is supported for some events. The channel index (scan_begin_arg, etc.) maps to PFI0 - PFI9. Some of the more esoteric triggering possibilities of these boards are not supported. */ /* The real guts of the driver is in ni_mio_common.c, which is included both here and in ni_pcimio.c Interrupt support added by Truxton Fulton References for specifications: 340747b.pdf Register Level Programmer Manual (obsolete) 340747c.pdf Register Level Programmer Manual (new) DAQ-STC reference manual Other possibly relevant info: 320517c.pdf User manual (obsolete) 320517f.pdf User manual (new) 320889a.pdf delete 320906c.pdf maximum signal ratings 321066a.pdf about 16x 321791a.pdf discontinuation of at-mio-16e-10 rev. c 321808a.pdf about at-mio-16e-10 rev P 321837a.pdf discontinuation of at-mio-16de-10 rev d 321838a.pdf about at-mio-16de-10 rev N ISSUES: need to deal with external reference for DAC, and other DAC properties in board properties deal with at-mio-16de-10 revision D to N changes, etc. */ #include #include "../comedidev.h" #include #include #include "ni_stc.h" #include "8255.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 = 44, .isapnp_id = 0x0000, /* XXX unknown */ .name = "at-mio-16e-1", .n_adchan = 16, .adbits = 12, .ai_fifo_depth = 8192, .alwaysdither = 0, .gainlkup = ai_gain_16, .ai_speed = 800, .n_aochan = 2, .aobits = 12, .ao_fifo_depth = 2048, .ao_range_table = &range_ni_E_ao_ext, .ao_unipolar = 1, .ao_speed = 1000, .has_8255 = 0, .num_p0_dio_channels = 8, .caldac = {mb88341}, }, {.device_id = 25, .isapnp_id = 0x1900, .name = "at-mio-16e-2", .n_adchan = 16, .adbits = 12, .ai_fifo_depth = 2048, .alwaysdither = 0, .gainlkup = ai_gain_16, .ai_speed = 2000, .n_aochan = 2, .aobits = 12, .ao_fifo_depth = 2048, .ao_range_table = &range_ni_E_ao_ext, .ao_unipolar = 1, .ao_speed = 1000, .has_8255 = 0, .num_p0_dio_channels = 8, .caldac = {mb88341}, }, {.device_id = 36, .isapnp_id = 0x2400, .name = "at-mio-16e-10", .n_adchan = 16, .adbits = 12, .ai_fifo_depth = 512, .alwaysdither = 0, .gainlkup = ai_gain_16, .ai_speed = 10000, .n_aochan = 2, .aobits = 12, .ao_fifo_depth = 0, .ao_range_table = &range_ni_E_ao_ext, .ao_unipolar = 1, .ao_speed = 10000, .num_p0_dio_channels = 8, .caldac = {ad8804_debug}, .has_8255 = 0, }, {.device_id = 37, .isapnp_id = 0x2500, .name = "at-mio-16de-10", .n_adchan = 16, .adbits = 12, .ai_fifo_depth = 512, .alwaysdither = 0, .gainlkup = ai_gain_16, .ai_speed = 10000, .n_aochan = 2, .aobits = 12, .ao_fifo_depth = 0, .ao_range_table = &range_ni_E_ao_ext, .ao_unipolar = 1, .ao_speed = 10000, .num_p0_dio_channels = 8, .caldac = {ad8804_debug}, .has_8255 = 1, }, {.device_id = 38, .isapnp_id = 0x2600, .name = "at-mio-64e-3", .n_adchan = 64, .adbits = 12, .ai_fifo_depth = 2048, .alwaysdither = 0, .gainlkup = ai_gain_16, .ai_speed = 2000, .n_aochan = 2, .aobits = 12, .ao_fifo_depth = 2048, .ao_range_table = &range_ni_E_ao_ext, .ao_unipolar = 1, .ao_speed = 1000, .has_8255 = 0, .num_p0_dio_channels = 8, .caldac = {ad8804_debug}, }, {.device_id = 39, .isapnp_id = 0x2700, .name = "at-mio-16xe-50", .n_adchan = 16, .adbits = 16, .ai_fifo_depth = 512, .alwaysdither = 1, .gainlkup = ai_gain_8, .ai_speed = 50000, .n_aochan = 2, .aobits = 12, .ao_fifo_depth = 0, .ao_range_table = &range_bipolar10, .ao_unipolar = 0, .ao_speed = 50000, .num_p0_dio_channels = 8, .caldac = {dac8800, dac8043}, .has_8255 = 0, }, {.device_id = 50, .isapnp_id = 0x0000, /* XXX unknown */ .name = "at-mio-16xe-10", .n_adchan = 16, .adbits = 16, .ai_fifo_depth = 512, .alwaysdither = 1, .gainlkup = ai_gain_14, .ai_speed = 10000, .n_aochan = 2, .aobits = 16, .ao_fifo_depth = 2048, .ao_range_table = &range_ni_E_ao_ext, .ao_unipolar = 1, .ao_speed = 1000, .num_p0_dio_channels = 8, .caldac = {dac8800, dac8043, ad8522}, .has_8255 = 0, }, {.device_id = 51, .isapnp_id = 0x0000, /* XXX unknown */ .name = "at-ai-16xe-10", .n_adchan = 16, .adbits = 16, .ai_fifo_depth = 512, .alwaysdither = 1, /* unknown */ .gainlkup = ai_gain_14, .ai_speed = 10000, .n_aochan = 0, .aobits = 0, .ao_fifo_depth = 0, .ao_unipolar = 0, .num_p0_dio_channels = 8, .caldac = {dac8800, dac8043, ad8522}, .has_8255 = 0, } }; static const int ni_irqpin[] = { -1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7 }; #define interrupt_pin(a) (ni_irqpin[(a)]) #define IRQ_POLARITY 0 #define NI_E_IRQ_FLAGS 0 struct ni_private { struct pnp_dev *isapnp_dev; 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 * AT-MIO devices map the low 8 STC registers to iobase+addr*2. */ static void ni_atmio_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 ni_atmio_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 struct pnp_device_id device_ids[] = { {.id = "NIC1900", .driver_data = 0}, {.id = "NIC2400", .driver_data = 0}, {.id = "NIC2500", .driver_data = 0}, {.id = "NIC2600", .driver_data = 0}, {.id = "NIC2700", .driver_data = 0}, {.id = ""} }; MODULE_DEVICE_TABLE(pnp, device_ids); static int ni_atmio_attach(struct comedi_device *dev, struct comedi_devconfig *it); static int ni_atmio_detach(struct comedi_device *dev); static struct comedi_driver driver_atmio = { .driver_name = "ni_atmio", .module = THIS_MODULE, .attach = ni_atmio_attach, .detach = ni_atmio_detach, }; static int __init driver_atmio_init_module(void) { return comedi_driver_register(&driver_atmio); } static void __exit driver_atmio_cleanup_module(void) { comedi_driver_unregister(&driver_atmio); } module_init(driver_atmio_init_module); module_exit(driver_atmio_cleanup_module); #include "ni_mio_common.c" static int ni_getboardtype(struct comedi_device *dev); /* clean up allocated resources */ static int ni_atmio_detach(struct comedi_device *dev) { mio_common_detach(dev); if (dev->iobase) release_region(dev->iobase, NI_SIZE); if (dev->irq) free_irq(dev->irq, dev); if (devpriv->isapnp_dev) pnp_device_detach(devpriv->isapnp_dev); return 0; } static int ni_isapnp_find_board(struct pnp_dev **dev) { struct pnp_dev *isapnp_dev = NULL; int i; for (i = 0; i < n_ni_boards; i++) { isapnp_dev = pnp_find_dev(NULL, ISAPNP_VENDOR('N', 'I', 'C'), ISAPNP_FUNCTION(ni_boards[i]. isapnp_id), NULL); if (isapnp_dev == NULL || isapnp_dev->card == NULL) continue; if (pnp_device_attach(isapnp_dev) < 0) { printk ("ni_atmio: %s found but already active, skipping.\n", ni_boards[i].name); continue; } if (pnp_activate_dev(isapnp_dev) < 0) { pnp_device_detach(isapnp_dev); return -EAGAIN; } if (!pnp_port_valid(isapnp_dev, 0) || !pnp_irq_valid(isapnp_dev, 0)) { pnp_device_detach(isapnp_dev); printk("ni_atmio: pnp invalid port or irq, aborting\n"); return -ENOMEM; } break; } if (i == n_ni_boards) return -ENODEV; *dev = isapnp_dev; return 0; } static int ni_atmio_attach(struct comedi_device *dev, struct comedi_devconfig *it) { struct pnp_dev *isapnp_dev; int ret; unsigned long iobase; int board; unsigned int irq; /* allocate private area */ ret = ni_alloc_private(dev); if (ret < 0) return ret; devpriv->stc_writew = &ni_atmio_win_out; devpriv->stc_readw = &ni_atmio_win_in; devpriv->stc_writel = &win_out2; devpriv->stc_readl = &win_in2; iobase = it->options[0]; irq = it->options[1]; isapnp_dev = NULL; if (iobase == 0) { ret = ni_isapnp_find_board(&isapnp_dev); if (ret < 0) return ret; iobase = pnp_port_start(isapnp_dev, 0); irq = pnp_irq(isapnp_dev, 0); devpriv->isapnp_dev = isapnp_dev; } /* reserve our I/O region */ printk("comedi%d: ni_atmio: 0x%04lx", dev->minor, iobase); if (!request_region(iobase, NI_SIZE, "ni_atmio")) { printk(" I/O port conflict\n"); return -EIO; } dev->iobase = iobase; #ifdef DEBUG /* board existence sanity check */ { int i; printk(" board fingerprint:"); for (i = 0; i < 16; i += 2) { printk(" %04x %02x", inw(dev->iobase + i), inb(dev->iobase + i + 1)); } } #endif /* get board type */ board = ni_getboardtype(dev); if (board < 0) return -EIO; dev->board_ptr = ni_boards + board; printk(" %s", boardtype.name); dev->board_name = boardtype.name; /* irq stuff */ if (irq != 0) { if (irq > 15 || ni_irqpin[irq] == -1) { printk(" invalid irq %u\n", irq); return -EINVAL; } printk(" ( irq = %u )", irq); ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS, "ni_atmio", dev); if (ret < 0) { printk(" irq not available\n"); return -EINVAL; } dev->irq = irq; } /* generic E series stuff in ni_mio_common.c */ ret = ni_E_init(dev, it); if (ret < 0) return ret; return 0; } static int ni_getboardtype(struct comedi_device *dev) { int device_id = ni_read_eeprom(dev, 511); int i; for (i = 0; i < n_ni_boards; i++) { if (ni_boards[i].device_id == device_id) return i; } if (device_id == 255) printk(" can't find board\n"); else if (device_id == 0) printk(" EEPROM read error (?) or device not found\n"); else printk(" unknown device ID %d -- contact author\n", device_id); return -1; }