--- /dev/null
+/*
+
+ comedi/drivers/adl_pci9111.c
+
+ Hardware driver for PCI9111 ADLink cards:
+
+ PCI-9111HR
+
+ Copyright (C) 2002-2005 Emmanuel Pacaud <emmanuel.pacaud@univ-poitiers.fr>
+
+ 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: adl_pci9111
+Description: Adlink PCI-9111HR
+Author: Emmanuel Pacaud <emmanuel.pacaud@univ-poitiers.fr>
+Devices: [ADLink] PCI-9111HR (adl_pci9111)
+Status: experimental
+
+Supports:
+
+ - ai_insn read
+ - ao_insn read/write
+ - di_insn read
+ - do_insn read/write
+ - ai_do_cmd mode with the following sources:
+
+ - start_src TRIG_NOW
+ - scan_begin_src TRIG_FOLLOW TRIG_TIMER TRIG_EXT
+ - convert_src TRIG_TIMER TRIG_EXT
+ - scan_end_src TRIG_COUNT
+ - stop_src TRIG_COUNT TRIG_NONE
+
+ The scanned channels must be consecutive and start from 0. They must
+ all have the same range and aref.
+
+Configuration options:
+
+ [0] - PCI bus number (optional)
+ [1] - PCI slot number (optional)
+
+ If bus/slot is not specified, the first available PCI
+ device will be used.
+
+*/
+
+/*
+CHANGELOG:
+
+ 2005/02/17 Extend AI streaming capabilities. Now, scan_begin_arg can be
+ a multiple of chanlist_len*convert_arg.
+ 2002/02/19 Fixed the two's complement conversion in pci9111_(hr_)ai_get_data.
+ 2002/02/18 Added external trigger support for analog input.
+
+TODO:
+
+ - Really test implemented functionality.
+ - Add support for the PCI-9111DG with a probe routine to identify the card type
+ (perhaps with the help of the channel number readback of the A/D Data register).
+ - Add external multiplexer support.
+
+*/
+
+#include "../comedidev.h"
+
+#include <linux/delay.h>
+
+#include "8253.h"
+#include "comedi_pci.h"
+#include "comedi_fc.h"
+
+#define PCI9111_DRIVER_NAME "adl_pci9111"
+#define PCI9111_HR_DEVICE_ID 0x9111
+
+// TODO: Add other pci9111 board id
+
+#define PCI9111_IO_RANGE 0x0100
+
+#define PCI9111_FIFO_HALF_SIZE 512
+
+#define PCI9111_AI_CHANNEL_NBR 16
+
+#define PCI9111_AI_RESOLUTION 12
+#define PCI9111_AI_RESOLUTION_MASK 0x0FFF
+#define PCI9111_AI_RESOLUTION_2_CMP_BIT 0x0800
+
+#define PCI9111_HR_AI_RESOLUTION 16
+#define PCI9111_HR_AI_RESOLUTION_MASK 0xFFFF
+#define PCI9111_HR_AI_RESOLUTION_2_CMP_BIT 0x8000
+
+#define PCI9111_AI_ACQUISITION_PERIOD_MIN_NS 10000
+#define PCI9111_AO_CHANNEL_NBR 1
+#define PCI9111_AO_RESOLUTION 12
+#define PCI9111_AO_RESOLUTION_MASK 0x0FFF
+#define PCI9111_DI_CHANNEL_NBR 16
+#define PCI9111_DO_CHANNEL_NBR 16
+#define PCI9111_DO_MASK 0xFFFF
+
+#define PCI9111_RANGE_SETTING_DELAY 10
+#define PCI9111_AI_INSTANT_READ_UDELAY_US 2
+#define PCI9111_AI_INSTANT_READ_TIMEOUT 100
+
+#define PCI9111_8254_CLOCK_PERIOD_NS 500
+
+#define PCI9111_8254_COUNTER_0 0x00
+#define PCI9111_8254_COUNTER_1 0x40
+#define PCI9111_8254_COUNTER_2 0x80
+#define PCI9111_8254_COUNTER_LATCH 0x00
+#define PCI9111_8254_READ_LOAD_LSB_ONLY 0x10
+#define PCI9111_8254_READ_LOAD_MSB_ONLY 0x20
+#define PCI9111_8254_READ_LOAD_LSB_MSB 0x30
+#define PCI9111_8254_MODE_0 0x00
+#define PCI9111_8254_MODE_1 0x02
+#define PCI9111_8254_MODE_2 0x04
+#define PCI9111_8254_MODE_3 0x06
+#define PCI9111_8254_MODE_4 0x08
+#define PCI9111_8254_MODE_5 0x0A
+#define PCI9111_8254_BINARY_COUNTER 0x00
+#define PCI9111_8254_BCD_COUNTER 0x01
+
+/* IO address map */
+
+#define PCI9111_REGISTER_AD_FIFO_VALUE 0x00 // AD Data stored in FIFO
+#define PCI9111_REGISTER_DA_OUTPUT 0x00
+#define PCI9111_REGISTER_DIGITAL_IO 0x02
+#define PCI9111_REGISTER_EXTENDED_IO_PORTS 0x04
+#define PCI9111_REGISTER_AD_CHANNEL_CONTROL 0x06 // Channel selection
+#define PCI9111_REGISTER_AD_CHANNEL_READBACK 0x06
+#define PCI9111_REGISTER_INPUT_SIGNAL_RANGE 0x08
+#define PCI9111_REGISTER_RANGE_STATUS_READBACK 0x08
+#define PCI9111_REGISTER_TRIGGER_MODE_CONTROL 0x0A
+#define PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK 0x0A
+#define PCI9111_REGISTER_SOFTWARE_TRIGGER 0x0E
+#define PCI9111_REGISTER_INTERRUPT_CONTROL 0x0C
+#define PCI9111_REGISTER_8254_COUNTER_0 0x40
+#define PCI9111_REGISTER_8254_COUNTER_1 0x42
+#define PCI9111_REGISTER_8254_COUNTER_2 0X44
+#define PCI9111_REGISTER_8254_CONTROL 0x46
+#define PCI9111_REGISTER_INTERRUPT_CLEAR 0x48
+
+#define PCI9111_TRIGGER_MASK 0x0F
+#define PCI9111_PTRG_OFF (0 << 3)
+#define PCI9111_PTRG_ON (1 << 3)
+#define PCI9111_EITS_EXTERNAL (1 << 2)
+#define PCI9111_EITS_INTERNAL (0 << 2)
+#define PCI9111_TPST_SOFTWARE_TRIGGER (0 << 1)
+#define PCI9111_TPST_TIMER_PACER (1 << 1)
+#define PCI9111_ASCAN_ON (1 << 0)
+#define PCI9111_ASCAN_OFF (0 << 0)
+
+#define PCI9111_ISC0_SET_IRQ_ON_ENDING_OF_AD_CONVERSION (0 << 0)
+#define PCI9111_ISC0_SET_IRQ_ON_FIFO_HALF_FULL (1 << 0)
+#define PCI9111_ISC1_SET_IRQ_ON_TIMER_TICK (0 << 1)
+#define PCI9111_ISC1_SET_IRQ_ON_EXT_TRG (1 << 1)
+#define PCI9111_FFEN_SET_FIFO_ENABLE (0 << 2)
+#define PCI9111_FFEN_SET_FIFO_DISABLE (1 << 2)
+
+#define PCI9111_CHANNEL_MASK 0x0F
+
+#define PCI9111_RANGE_MASK 0x07
+#define PCI9111_FIFO_EMPTY_MASK 0x10
+#define PCI9111_FIFO_HALF_FULL_MASK 0x20
+#define PCI9111_FIFO_FULL_MASK 0x40
+#define PCI9111_AD_BUSY_MASK 0x80
+
+#define PCI9111_IO_BASE dev->iobase
+
+/*
+ * Define inlined function
+ */
+
+#define pci9111_trigger_and_autoscan_get() \
+ (inb(PCI9111_IO_BASE+PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK)&0x0F)
+
+#define pci9111_trigger_and_autoscan_set(flags) \
+ outb(flags,PCI9111_IO_BASE+PCI9111_REGISTER_TRIGGER_MODE_CONTROL)
+
+#define pci9111_interrupt_and_fifo_get() \
+ ((inb(PCI9111_IO_BASE+PCI9111_REGISTER_AD_MODE_INTERRUPT_READBACK) >> 4) &0x03)
+
+#define pci9111_interrupt_and_fifo_set(flags) \
+ outb(flags,PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CONTROL)
+
+#define pci9111_interrupt_clear() \
+ outb(0,PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CLEAR)
+
+#define pci9111_software_trigger() \
+ outb(0,PCI9111_IO_BASE+PCI9111_REGISTER_SOFTWARE_TRIGGER)
+
+#define pci9111_fifo_reset() \
+ outb(PCI9111_FFEN_SET_FIFO_ENABLE,PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CONTROL); \
+ outb(PCI9111_FFEN_SET_FIFO_DISABLE,PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CONTROL); \
+ outb(PCI9111_FFEN_SET_FIFO_ENABLE,PCI9111_IO_BASE+PCI9111_REGISTER_INTERRUPT_CONTROL)
+
+#define pci9111_is_fifo_full() \
+ ((inb(PCI9111_IO_BASE+PCI9111_REGISTER_RANGE_STATUS_READBACK)& \
+ PCI9111_FIFO_FULL_MASK)==0)
+
+#define pci9111_is_fifo_half_full() \
+ ((inb(PCI9111_IO_BASE+PCI9111_REGISTER_RANGE_STATUS_READBACK)& \
+ PCI9111_FIFO_HALF_FULL_MASK)==0)
+
+#define pci9111_is_fifo_empty() \
+ ((inb(PCI9111_IO_BASE+PCI9111_REGISTER_RANGE_STATUS_READBACK)& \
+ PCI9111_FIFO_EMPTY_MASK)==0)
+
+#define pci9111_ai_channel_set(channel) \
+ outb((channel)&PCI9111_CHANNEL_MASK,PCI9111_IO_BASE+PCI9111_REGISTER_AD_CHANNEL_CONTROL)
+
+#define pci9111_ai_channel_get() \
+ inb(PCI9111_IO_BASE+PCI9111_REGISTER_AD_CHANNEL_READBACK)&PCI9111_CHANNEL_MASK
+
+#define pci9111_ai_range_set(range) \
+ outb((range)&PCI9111_RANGE_MASK,PCI9111_IO_BASE+PCI9111_REGISTER_INPUT_SIGNAL_RANGE)
+
+#define pci9111_ai_range_get() \
+ inb(PCI9111_IO_BASE+PCI9111_REGISTER_RANGE_STATUS_READBACK)&PCI9111_RANGE_MASK
+
+#define pci9111_ai_get_data() \
+ ((inw(PCI9111_IO_BASE+PCI9111_REGISTER_AD_FIFO_VALUE)>>4)&PCI9111_AI_RESOLUTION_MASK) \
+ ^ PCI9111_AI_RESOLUTION_2_CMP_BIT
+
+#define pci9111_hr_ai_get_data() \
+ (inw(PCI9111_IO_BASE+PCI9111_REGISTER_AD_FIFO_VALUE) & PCI9111_HR_AI_RESOLUTION_MASK) \
+ ^ PCI9111_HR_AI_RESOLUTION_2_CMP_BIT
+
+#define pci9111_ao_set_data(data) \
+ outw(data&PCI9111_AO_RESOLUTION_MASK,PCI9111_IO_BASE+PCI9111_REGISTER_DA_OUTPUT)
+
+#define pci9111_di_get_bits() \
+ inw(PCI9111_IO_BASE+PCI9111_REGISTER_DIGITAL_IO)
+
+#define pci9111_do_set_bits(bits) \
+ outw(bits,PCI9111_IO_BASE+PCI9111_REGISTER_DIGITAL_IO)
+
+#define pci9111_8254_control_set(flags) \
+ outb(flags,PCI9111_IO_BASE+PCI9111_REGISTER_8254_CONTROL)
+
+#define pci9111_8254_counter_0_set(data) \
+ outb(data & 0xFF, PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_0); \
+ outb( (data >> 8) & 0xFF, PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_0)
+
+#define pci9111_8254_counter_1_set(data) \
+ outb(data & 0xFF, PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_1); \
+ outb( (data >> 8) & 0xFF, PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_1)
+
+#define pci9111_8254_counter_2_set(data) \
+ outb(data & 0xFF, PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_2); \
+ outb( (data >> 8) & 0xFF, PCI9111_IO_BASE+PCI9111_REGISTER_8254_COUNTER_2)
+
+//
+// Function prototypes
+//
+
+static int pci9111_attach(comedi_device * dev, comedi_devconfig * it);
+static int pci9111_detach(comedi_device * dev);
+static void pci9111_ai_munge(comedi_device * dev, comedi_subdevice * s,
+ void *data, unsigned int num_bytes, unsigned int start_chan_index);
+
+static const comedi_lrange pci9111_hr_ai_range = {
+ 5,
+ {
+ BIP_RANGE(10),
+ BIP_RANGE(5),
+ BIP_RANGE(2.5),
+ BIP_RANGE(1.25),
+ BIP_RANGE(0.625)
+ }
+};
+
+static DEFINE_PCI_DEVICE_TABLE(pci9111_pci_table) = {
+ {PCI_VENDOR_ID_ADLINK, PCI9111_HR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0,
+ 0, 0},
+ //{ PCI_VENDOR_ID_ADLINK, PCI9111_HG_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ {0}
+};
+
+MODULE_DEVICE_TABLE(pci, pci9111_pci_table);
+
+//
+// Board specification structure
+//
+
+typedef struct {
+ const char *name; // driver name
+ int device_id;
+ int ai_channel_nbr; // num of A/D chans
+ int ao_channel_nbr; // num of D/A chans
+ int ai_resolution; // resolution of A/D
+ int ai_resolution_mask;
+ int ao_resolution; // resolution of D/A
+ int ao_resolution_mask;
+ const comedi_lrange *ai_range_list; // rangelist for A/D
+ const comedi_lrange *ao_range_list; // rangelist for D/A
+ unsigned int ai_acquisition_period_min_ns;
+} pci9111_board_struct;
+
+static const pci9111_board_struct pci9111_boards[] = {
+ {
+ name: "pci9111_hr",
+ device_id:PCI9111_HR_DEVICE_ID,
+ ai_channel_nbr:PCI9111_AI_CHANNEL_NBR,
+ ao_channel_nbr:PCI9111_AO_CHANNEL_NBR,
+ ai_resolution:PCI9111_HR_AI_RESOLUTION,
+ ai_resolution_mask:PCI9111_HR_AI_RESOLUTION_MASK,
+ ao_resolution:PCI9111_AO_RESOLUTION,
+ ao_resolution_mask:PCI9111_AO_RESOLUTION_MASK,
+ ai_range_list:&pci9111_hr_ai_range,
+ ao_range_list:&range_bipolar10,
+ ai_acquisition_period_min_ns:PCI9111_AI_ACQUISITION_PERIOD_MIN_NS}
+};
+
+#define pci9111_board_nbr \
+ (sizeof(pci9111_boards)/sizeof(pci9111_board_struct))
+
+static comedi_driver pci9111_driver = {
+ driver_name:PCI9111_DRIVER_NAME,
+ module:THIS_MODULE,
+ attach:pci9111_attach,
+ detach:pci9111_detach,
+};
+
+COMEDI_PCI_INITCLEANUP(pci9111_driver, pci9111_pci_table);
+
+//
+// Private data structure
+//
+
+typedef struct {
+ struct pci_dev *pci_device;
+ unsigned long io_range; // PCI6503 io range
+
+ unsigned long lcr_io_base; // Local configuration register base address
+ unsigned long lcr_io_range;
+
+ int stop_counter;
+ int stop_is_none;
+
+ unsigned int scan_delay;
+ unsigned int chanlist_len;
+ unsigned int chunk_counter;
+ unsigned int chunk_num_samples;
+
+ int ao_readback; // Last written analog output data
+
+ int timer_divisor_1; // Divisor values for the 8254 timer pacer
+ int timer_divisor_2;
+
+ int is_valid; // Is device valid
+
+ sampl_t ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
+} pci9111_private_data_struct;
+
+#define dev_private ((pci9111_private_data_struct *)dev->private)
+
+// ------------------------------------------------------------------
+//
+// PLX9050 SECTION
+//
+// ------------------------------------------------------------------
+
+#define PLX9050_REGISTER_INTERRUPT_CONTROL 0x4c
+
+#define PLX9050_LINTI1_ENABLE (1 << 0)
+#define PLX9050_LINTI1_ACTIVE_HIGH (1 << 1)
+#define PLX9050_LINTI1_STATUS (1 << 2)
+#define PLX9050_LINTI2_ENABLE (1 << 3)
+#define PLX9050_LINTI2_ACTIVE_HIGH (1 << 4)
+#define PLX9050_LINTI2_STATUS (1 << 5)
+#define PLX9050_PCI_INTERRUPT_ENABLE (1 << 6)
+#define PLX9050_SOFTWARE_INTERRUPT (1 << 7)
+
+static void plx9050_interrupt_control(unsigned long io_base,
+ bool LINTi1_enable,
+ bool LINTi1_active_high,
+ bool LINTi2_enable, bool LINTi2_active_high, bool interrupt_enable)
+{
+ int flags = 0;
+
+ if (LINTi1_enable)
+ flags |= PLX9050_LINTI1_ENABLE;
+ if (LINTi1_active_high)
+ flags |= PLX9050_LINTI1_ACTIVE_HIGH;
+ if (LINTi2_enable)
+ flags |= PLX9050_LINTI2_ENABLE;
+ if (LINTi2_active_high)
+ flags |= PLX9050_LINTI2_ACTIVE_HIGH;
+
+ if (interrupt_enable)
+ flags |= PLX9050_PCI_INTERRUPT_ENABLE;
+
+ outb(flags, io_base + PLX9050_REGISTER_INTERRUPT_CONTROL);
+}
+
+// ------------------------------------------------------------------
+//
+// MISCELLANEOUS SECTION
+//
+// ------------------------------------------------------------------
+
+//
+// 8254 timer
+//
+
+static void pci9111_timer_set(comedi_device * dev)
+{
+ pci9111_8254_control_set(PCI9111_8254_COUNTER_0 |
+ PCI9111_8254_READ_LOAD_LSB_MSB |
+ PCI9111_8254_MODE_0 | PCI9111_8254_BINARY_COUNTER);
+
+ pci9111_8254_control_set(PCI9111_8254_COUNTER_1 |
+ PCI9111_8254_READ_LOAD_LSB_MSB |
+ PCI9111_8254_MODE_2 | PCI9111_8254_BINARY_COUNTER);
+
+ pci9111_8254_control_set(PCI9111_8254_COUNTER_2 |
+ PCI9111_8254_READ_LOAD_LSB_MSB |
+ PCI9111_8254_MODE_2 | PCI9111_8254_BINARY_COUNTER);
+
+ comedi_udelay(1);
+
+ pci9111_8254_counter_2_set(dev_private->timer_divisor_2);
+ pci9111_8254_counter_1_set(dev_private->timer_divisor_1);
+}
+
+typedef enum {
+ software,
+ timer_pacer,
+ external
+} pci9111_trigger_sources;
+
+static void pci9111_trigger_source_set(comedi_device * dev,
+ pci9111_trigger_sources source)
+{
+ int flags;
+
+ flags = pci9111_trigger_and_autoscan_get() & 0x09;
+
+ switch (source) {
+ case software:
+ flags |= PCI9111_EITS_INTERNAL | PCI9111_TPST_SOFTWARE_TRIGGER;
+ break;
+
+ case timer_pacer:
+ flags |= PCI9111_EITS_INTERNAL | PCI9111_TPST_TIMER_PACER;
+ break;
+
+ case external:
+ flags |= PCI9111_EITS_EXTERNAL;
+ break;
+ }
+
+ pci9111_trigger_and_autoscan_set(flags);
+}
+
+static void pci9111_pretrigger_set(comedi_device * dev, bool pretrigger)
+{
+ int flags;
+
+ flags = pci9111_trigger_and_autoscan_get() & 0x07;
+
+ if (pretrigger)
+ flags |= PCI9111_PTRG_ON;
+
+ pci9111_trigger_and_autoscan_set(flags);
+}
+
+static void pci9111_autoscan_set(comedi_device * dev, bool autoscan)
+{
+ int flags;
+
+ flags = pci9111_trigger_and_autoscan_get() & 0x0e;
+
+ if (autoscan)
+ flags |= PCI9111_ASCAN_ON;
+
+ pci9111_trigger_and_autoscan_set(flags);
+}
+
+typedef enum {
+ irq_on_eoc,
+ irq_on_fifo_half_full
+} pci9111_ISC0_sources;
+
+typedef enum {
+ irq_on_timer_tick,
+ irq_on_external_trigger
+} pci9111_ISC1_sources;
+
+static void pci9111_interrupt_source_set(comedi_device * dev,
+ pci9111_ISC0_sources irq_0_source, pci9111_ISC1_sources irq_1_source)
+{
+ int flags;
+
+ flags = pci9111_interrupt_and_fifo_get() & 0x04;
+
+ if (irq_0_source == irq_on_fifo_half_full)
+ flags |= PCI9111_ISC0_SET_IRQ_ON_FIFO_HALF_FULL;
+
+ if (irq_1_source == irq_on_external_trigger)
+ flags |= PCI9111_ISC1_SET_IRQ_ON_EXT_TRG;
+
+ pci9111_interrupt_and_fifo_set(flags);
+}
+
+// ------------------------------------------------------------------
+//
+// HARDWARE TRIGGERED ANALOG INPUT SECTION
+//
+// ------------------------------------------------------------------
+
+//
+// Cancel analog input autoscan
+//
+
+#undef AI_DO_CMD_DEBUG
+
+static int pci9111_ai_cancel(comedi_device * dev, comedi_subdevice * s)
+{
+ // Disable interrupts
+
+ plx9050_interrupt_control(dev_private->lcr_io_base, true, true, true,
+ true, false);
+
+ pci9111_trigger_source_set(dev, software);
+
+ pci9111_autoscan_set(dev, false);
+
+ pci9111_fifo_reset();
+
+#ifdef AI_DO_CMD_DEBUG
+ printk(PCI9111_DRIVER_NAME ": ai_cancel\n");
+#endif
+
+ return 0;
+}
+
+//
+// Test analog input command
+//
+
+#define pci9111_check_trigger_src(src,flags) \
+ tmp = src; \
+ src &= flags; \
+ if (!src || tmp != src) error++
+
+static int
+pci9111_ai_do_cmd_test(comedi_device * dev,
+ comedi_subdevice * s, comedi_cmd * cmd)
+{
+ int tmp;
+ int error = 0;
+ int range, reference;
+ int i;
+ pci9111_board_struct *board = (pci9111_board_struct *) dev->board_ptr;
+
+ // Step 1 : check if trigger are trivialy valid
+
+ pci9111_check_trigger_src(cmd->start_src, TRIG_NOW);
+ pci9111_check_trigger_src(cmd->scan_begin_src,
+ TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
+ pci9111_check_trigger_src(cmd->convert_src, TRIG_TIMER | TRIG_EXT);
+ pci9111_check_trigger_src(cmd->scan_end_src, TRIG_COUNT);
+ pci9111_check_trigger_src(cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+
+ if (error)
+ return 1;
+
+ // step 2 : make sure trigger sources are unique and mutually compatible
+
+ if (cmd->start_src != TRIG_NOW)
+ error++;
+
+ if ((cmd->scan_begin_src != TRIG_TIMER) &&
+ (cmd->scan_begin_src != TRIG_FOLLOW) &&
+ (cmd->scan_begin_src != TRIG_EXT))
+ error++;
+
+ if ((cmd->convert_src != TRIG_TIMER) && (cmd->convert_src != TRIG_EXT)) {
+ error++;
+ }
+ if ((cmd->convert_src == TRIG_TIMER) &&
+ !((cmd->scan_begin_src == TRIG_TIMER) ||
+ (cmd->scan_begin_src == TRIG_FOLLOW))) {
+ error++;
+ }
+ if ((cmd->convert_src == TRIG_EXT) &&
+ !((cmd->scan_begin_src == TRIG_EXT) ||
+ (cmd->scan_begin_src == TRIG_FOLLOW))) {
+ error++;
+ }
+
+ if (cmd->scan_end_src != TRIG_COUNT)
+ error++;
+ if ((cmd->stop_src != TRIG_COUNT) && (cmd->stop_src != TRIG_NONE))
+ error++;
+
+ if (error)
+ return 2;
+
+ // Step 3 : make sure arguments are trivialy compatible
+
+ if (cmd->chanlist_len < 1) {
+ cmd->chanlist_len = 1;
+ error++;
+ }
+
+ if (cmd->chanlist_len > board->ai_channel_nbr) {
+ cmd->chanlist_len = board->ai_channel_nbr;
+ error++;
+ }
+
+ if ((cmd->start_src == TRIG_NOW) && (cmd->start_arg != 0)) {
+ cmd->start_arg = 0;
+ error++;
+ }
+
+ if ((cmd->convert_src == TRIG_TIMER) &&
+ (cmd->convert_arg < board->ai_acquisition_period_min_ns)) {
+ cmd->convert_arg = board->ai_acquisition_period_min_ns;
+ error++;
+ }
+ if ((cmd->convert_src == TRIG_EXT) && (cmd->convert_arg != 0)) {
+ cmd->convert_arg = 0;
+ error++;
+ }
+
+ if ((cmd->scan_begin_src == TRIG_TIMER) &&
+ (cmd->scan_begin_arg < board->ai_acquisition_period_min_ns)) {
+ cmd->scan_begin_arg = board->ai_acquisition_period_min_ns;
+ error++;
+ }
+ if ((cmd->scan_begin_src == TRIG_FOLLOW) && (cmd->scan_begin_arg != 0)) {
+ cmd->scan_begin_arg = 0;
+ error++;
+ }
+ if ((cmd->scan_begin_src == TRIG_EXT) && (cmd->scan_begin_arg != 0)) {
+ cmd->scan_begin_arg = 0;
+ error++;
+ }
+
+ if ((cmd->scan_end_src == TRIG_COUNT) &&
+ (cmd->scan_end_arg != cmd->chanlist_len)) {
+ cmd->scan_end_arg = cmd->chanlist_len;
+ error++;
+ }
+
+ if ((cmd->stop_src == TRIG_COUNT) && (cmd->stop_arg < 1)) {
+ cmd->stop_arg = 1;
+ error++;
+ }
+ if ((cmd->stop_src == TRIG_NONE) && (cmd->stop_arg != 0)) {
+ cmd->stop_arg = 0;
+ error++;
+ }
+
+ if (error)
+ return 3;
+
+ // Step 4 : fix up any arguments
+
+ if (cmd->convert_src == TRIG_TIMER) {
+ tmp = cmd->convert_arg;
+ i8253_cascade_ns_to_timer_2div(PCI9111_8254_CLOCK_PERIOD_NS,
+ &(dev_private->timer_divisor_1),
+ &(dev_private->timer_divisor_2),
+ &(cmd->convert_arg), cmd->flags & TRIG_ROUND_MASK);
+ if (tmp != cmd->convert_arg)
+ error++;
+ }
+ // There's only one timer on this card, so the scan_begin timer must
+ // be a multiple of chanlist_len*convert_arg
+
+ if (cmd->scan_begin_src == TRIG_TIMER) {
+
+ unsigned int scan_begin_min;
+ unsigned int scan_begin_arg;
+ unsigned int scan_factor;
+
+ scan_begin_min = cmd->chanlist_len * cmd->convert_arg;
+
+ if (cmd->scan_begin_arg != scan_begin_min) {
+ if (scan_begin_min < cmd->scan_begin_arg) {
+ scan_factor =
+ cmd->scan_begin_arg / scan_begin_min;
+ scan_begin_arg = scan_factor * scan_begin_min;
+ if (cmd->scan_begin_arg != scan_begin_arg) {
+ cmd->scan_begin_arg = scan_begin_arg;
+ error++;
+ }
+ } else {
+ cmd->scan_begin_arg = scan_begin_min;
+ error++;
+ }
+ }
+ }
+
+ if (error)
+ return 4;
+
+ // Step 5 : check channel list
+
+ if (cmd->chanlist) {
+
+ range = CR_RANGE(cmd->chanlist[0]);
+ reference = CR_AREF(cmd->chanlist[0]);
+
+ if (cmd->chanlist_len > 1) {
+ for (i = 0; i < cmd->chanlist_len; i++) {
+ if (CR_CHAN(cmd->chanlist[i]) != i) {
+ comedi_error(dev,
+ "entries in chanlist must be consecutive "
+ "channels,counting upwards from 0\n");
+ error++;
+ }
+ if (CR_RANGE(cmd->chanlist[i]) != range) {
+ comedi_error(dev,
+ "entries in chanlist must all have the same gain\n");
+ error++;
+ }
+ if (CR_AREF(cmd->chanlist[i]) != reference) {
+ comedi_error(dev,
+ "entries in chanlist must all have the same reference\n");
+ error++;
+ }
+ }
+ } else {
+ if ((CR_CHAN(cmd->chanlist[0]) >
+ (board->ai_channel_nbr - 1))
+ || (CR_CHAN(cmd->chanlist[0]) < 0)) {
+ comedi_error(dev,
+ "channel number is out of limits\n");
+ error++;
+ }
+ }
+ }
+
+ if (error)
+ return 5;
+
+ return 0;
+
+}
+
+//
+// Analog input command
+//
+
+static int pci9111_ai_do_cmd(comedi_device * dev, comedi_subdevice * subdevice)
+{
+ comedi_cmd *async_cmd = &subdevice->async->cmd;
+
+ if (!dev->irq) {
+ comedi_error(dev,
+ "no irq assigned for PCI9111, cannot do hardware conversion");
+ return -1;
+ }
+ // Set channel scan limit
+ //
+ // PCI9111 allows only scanning from channel 0 to channel n
+ //
+ // TODO: handle the case of an external multiplexer
+ //
+
+ if (async_cmd->chanlist_len > 1) {
+ pci9111_ai_channel_set((async_cmd->chanlist_len) - 1);
+ pci9111_autoscan_set(dev, true);
+ } else {
+ pci9111_ai_channel_set(CR_CHAN(async_cmd->chanlist[0]));
+ pci9111_autoscan_set(dev, false);
+ }
+
+ // Set gain
+ //
+ // This is the same gain on every channel
+ //
+
+ pci9111_ai_range_set(CR_RANGE(async_cmd->chanlist[0]));
+
+ /* Set counter */
+
+ switch (async_cmd->stop_src) {
+ case TRIG_COUNT:
+ dev_private->stop_counter =
+ async_cmd->stop_arg * async_cmd->chanlist_len;
+ dev_private->stop_is_none = 0;
+ break;
+
+ case TRIG_NONE:
+ dev_private->stop_counter = 0;
+ dev_private->stop_is_none = 1;
+ break;
+
+ default:
+ comedi_error(dev, "Invalid stop trigger");
+ return -1;
+ }
+
+ // Set timer pacer
+
+ dev_private->scan_delay = 0;
+ switch (async_cmd->convert_src) {
+ case TRIG_TIMER:
+ i8253_cascade_ns_to_timer_2div(PCI9111_8254_CLOCK_PERIOD_NS,
+ &(dev_private->timer_divisor_1),
+ &(dev_private->timer_divisor_2),
+ &(async_cmd->convert_arg),
+ async_cmd->flags & TRIG_ROUND_MASK);
+#ifdef AI_DO_CMD_DEBUG
+ printk(PCI9111_DRIVER_NAME ": divisors = %d, %d\n",
+ dev_private->timer_divisor_1,
+ dev_private->timer_divisor_2);
+#endif
+
+ pci9111_trigger_source_set(dev, software);
+ pci9111_timer_set(dev);
+ pci9111_fifo_reset();
+ pci9111_interrupt_source_set(dev, irq_on_fifo_half_full,
+ irq_on_timer_tick);
+ pci9111_trigger_source_set(dev, timer_pacer);
+ plx9050_interrupt_control(dev_private->lcr_io_base, true, true,
+ false, true, true);
+
+ dev_private->scan_delay =
+ (async_cmd->scan_begin_arg / (async_cmd->convert_arg *
+ async_cmd->chanlist_len)) - 1;
+
+ break;
+
+ case TRIG_EXT:
+
+ pci9111_trigger_source_set(dev, external);
+ pci9111_fifo_reset();
+ pci9111_interrupt_source_set(dev, irq_on_fifo_half_full,
+ irq_on_timer_tick);
+ plx9050_interrupt_control(dev_private->lcr_io_base, true, true,
+ false, true, true);
+
+ break;
+
+ default:
+ comedi_error(dev, "Invalid convert trigger");
+ return -1;
+ }
+
+ dev_private->stop_counter *= (1 + dev_private->scan_delay);
+ dev_private->chanlist_len = async_cmd->chanlist_len;
+ dev_private->chunk_counter = 0;
+ dev_private->chunk_num_samples =
+ dev_private->chanlist_len * (1 + dev_private->scan_delay);
+
+#ifdef AI_DO_CMD_DEBUG
+ printk(PCI9111_DRIVER_NAME ": start interruptions!\n");
+ printk(PCI9111_DRIVER_NAME ": trigger source = %2x\n",
+ pci9111_trigger_and_autoscan_get());
+ printk(PCI9111_DRIVER_NAME ": irq source = %2x\n",
+ pci9111_interrupt_and_fifo_get());
+ printk(PCI9111_DRIVER_NAME ": ai_do_cmd\n");
+ printk(PCI9111_DRIVER_NAME ": stop counter = %d\n",
+ dev_private->stop_counter);
+ printk(PCI9111_DRIVER_NAME ": scan delay = %d\n",
+ dev_private->scan_delay);
+ printk(PCI9111_DRIVER_NAME ": chanlist_len = %d\n",
+ dev_private->chanlist_len);
+ printk(PCI9111_DRIVER_NAME ": chunk num samples = %d\n",
+ dev_private->chunk_num_samples);
+#endif
+
+ return 0;
+}
+
+static void pci9111_ai_munge(comedi_device * dev, comedi_subdevice * s,
+ void *data, unsigned int num_bytes, unsigned int start_chan_index)
+{
+ unsigned int i, num_samples = num_bytes / sizeof(sampl_t);
+ sampl_t *array = data;
+ int resolution =
+ ((pci9111_board_struct *) dev->board_ptr)->ai_resolution;
+
+ for (i = 0; i < num_samples; i++) {
+ if (resolution == PCI9111_HR_AI_RESOLUTION)
+ array[i] =
+ (array[i] & PCI9111_HR_AI_RESOLUTION_MASK) ^
+ PCI9111_HR_AI_RESOLUTION_2_CMP_BIT;
+ else
+ array[i] =
+ ((array[i] >> 4) & PCI9111_AI_RESOLUTION_MASK) ^
+ PCI9111_AI_RESOLUTION_2_CMP_BIT;
+ }
+}
+
+// ------------------------------------------------------------------
+//
+// INTERRUPT SECTION
+//
+// ------------------------------------------------------------------
+
+#undef INTERRUPT_DEBUG
+
+static irqreturn_t pci9111_interrupt(int irq, void *p_device PT_REGS_ARG)
+{
+ comedi_device *dev = p_device;
+ comedi_subdevice *subdevice = dev->read_subdev;
+ comedi_async *async;
+ unsigned long irq_flags;
+ unsigned char intcsr;
+
+ if (!dev->attached) {
+ // Ignore interrupt before device fully attached.
+ // Might not even have allocated subdevices yet!
+ return IRQ_NONE;
+ }
+
+ async = subdevice->async;
+
+ comedi_spin_lock_irqsave(&dev->spinlock, irq_flags);
+
+ // Check if we are source of interrupt
+ intcsr = inb(dev_private->lcr_io_base +
+ PLX9050_REGISTER_INTERRUPT_CONTROL);
+ if (!(((intcsr & PLX9050_PCI_INTERRUPT_ENABLE) != 0)
+ && (((intcsr & (PLX9050_LINTI1_ENABLE |
+ PLX9050_LINTI1_STATUS))
+ ==
+ (PLX9050_LINTI1_ENABLE |
+ PLX9050_LINTI1_STATUS))
+ || ((intcsr & (PLX9050_LINTI2_ENABLE |
+ PLX9050_LINTI2_STATUS))
+ ==
+ (PLX9050_LINTI2_ENABLE |
+ PLX9050_LINTI2_STATUS))))) {
+ // Not the source of the interrupt.
+ // (N.B. not using PLX9050_SOFTWARE_INTERRUPT)
+ comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+ return IRQ_NONE;
+ }
+
+ if ((intcsr & (PLX9050_LINTI1_ENABLE | PLX9050_LINTI1_STATUS)) ==
+ (PLX9050_LINTI1_ENABLE | PLX9050_LINTI1_STATUS)) {
+ // Interrupt comes from fifo_half-full signal
+
+ if (pci9111_is_fifo_full()) {
+ comedi_spin_unlock_irqrestore(&dev->spinlock,
+ irq_flags);
+ comedi_error(dev, PCI9111_DRIVER_NAME " fifo overflow");
+ pci9111_interrupt_clear();
+ pci9111_ai_cancel(dev, subdevice);
+ async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA;
+ comedi_event(dev, subdevice);
+
+ return IRQ_HANDLED;
+ }
+
+ if (pci9111_is_fifo_half_full()) {
+ unsigned int num_samples;
+ unsigned int bytes_written = 0;
+
+#ifdef INTERRUPT_DEBUG
+ printk(PCI9111_DRIVER_NAME ": fifo is half full\n");
+#endif
+
+ num_samples =
+ PCI9111_FIFO_HALF_SIZE >
+ dev_private->stop_counter
+ && !dev_private->stop_is_none ? dev_private->
+ stop_counter : PCI9111_FIFO_HALF_SIZE;
+ insw(PCI9111_IO_BASE + PCI9111_REGISTER_AD_FIFO_VALUE,
+ dev_private->ai_bounce_buffer, num_samples);
+
+ if (dev_private->scan_delay < 1) {
+ bytes_written =
+ cfc_write_array_to_buffer(subdevice,
+ dev_private->ai_bounce_buffer,
+ num_samples * sizeof(sampl_t));
+ } else {
+ int position = 0;
+ int to_read;
+
+ while (position < num_samples) {
+ if (dev_private->chunk_counter <
+ dev_private->chanlist_len) {
+ to_read =
+ dev_private->
+ chanlist_len -
+ dev_private->
+ chunk_counter;
+
+ if (to_read >
+ num_samples - position)
+ to_read =
+ num_samples -
+ position;
+
+ bytes_written +=
+ cfc_write_array_to_buffer
+ (subdevice,
+ dev_private->
+ ai_bounce_buffer +
+ position,
+ to_read *
+ sizeof(sampl_t));
+ } else {
+ to_read =
+ dev_private->
+ chunk_num_samples -
+ dev_private->
+ chunk_counter;
+ if (to_read >
+ num_samples - position)
+ to_read =
+ num_samples -
+ position;
+
+ bytes_written +=
+ sizeof(sampl_t) *
+ to_read;
+ }
+
+ position += to_read;
+ dev_private->chunk_counter += to_read;
+
+ if (dev_private->chunk_counter >=
+ dev_private->chunk_num_samples)
+ dev_private->chunk_counter = 0;
+ }
+ }
+
+ dev_private->stop_counter -=
+ bytes_written / sizeof(sampl_t);
+ }
+ }
+
+ if ((dev_private->stop_counter == 0) && (!dev_private->stop_is_none)) {
+ async->events |= COMEDI_CB_EOA;
+ pci9111_ai_cancel(dev, subdevice);
+ }
+
+ /* Very important, otherwise another interrupt request will be inserted
+ * and will cause driver hangs on processing interrupt event. */
+
+ pci9111_interrupt_clear();
+
+ comedi_spin_unlock_irqrestore(&dev->spinlock, irq_flags);
+
+ comedi_event(dev, subdevice);
+
+ return IRQ_HANDLED;
+}
+
+// ------------------------------------------------------------------
+//
+// INSTANT ANALOG INPUT OUTPUT SECTION
+//
+// ------------------------------------------------------------------
+
+//
+// analog instant input
+//
+
+#undef AI_INSN_DEBUG
+
+static int pci9111_ai_insn_read(comedi_device * dev,
+ comedi_subdevice * subdevice, comedi_insn * insn, lsampl_t * data)
+{
+ int resolution =
+ ((pci9111_board_struct *) dev->board_ptr)->ai_resolution;
+
+ int timeout, i;
+
+#ifdef AI_INSN_DEBUG
+ printk(PCI9111_DRIVER_NAME ": ai_insn set c/r/n = %2x/%2x/%2x\n",
+ CR_CHAN((&insn->chanspec)[0]),
+ CR_RANGE((&insn->chanspec)[0]), insn->n);
+#endif
+
+ pci9111_ai_channel_set(CR_CHAN((&insn->chanspec)[0]));
+
+ if ((pci9111_ai_range_get()) != CR_RANGE((&insn->chanspec)[0])) {
+ pci9111_ai_range_set(CR_RANGE((&insn->chanspec)[0]));
+ }
+
+ pci9111_fifo_reset();
+
+ for (i = 0; i < insn->n; i++) {
+ pci9111_software_trigger();
+
+ timeout = PCI9111_AI_INSTANT_READ_TIMEOUT;
+
+ while (timeout--) {
+ if (!pci9111_is_fifo_empty())
+ goto conversion_done;
+ }
+
+ comedi_error(dev, "A/D read timeout");
+ data[i] = 0;
+ pci9111_fifo_reset();
+ return -ETIME;
+
+ conversion_done:
+
+ if (resolution == PCI9111_HR_AI_RESOLUTION) {
+ data[i] = pci9111_hr_ai_get_data();
+ } else {
+ data[i] = pci9111_ai_get_data();
+ }
+ }
+
+#ifdef AI_INSN_DEBUG
+ printk(PCI9111_DRIVER_NAME ": ai_insn get c/r/t = %2x/%2x/%2x\n",
+ pci9111_ai_channel_get(),
+ pci9111_ai_range_get(), pci9111_trigger_and_autoscan_get());
+#endif
+
+ return i;
+}
+
+//
+// Analog instant output
+//
+
+static int
+pci9111_ao_insn_write(comedi_device * dev,
+ comedi_subdevice * s, comedi_insn * insn, lsampl_t * data)
+{
+ int i;
+
+ for (i = 0; i < insn->n; i++) {
+ pci9111_ao_set_data(data[i]);
+ dev_private->ao_readback = data[i];
+ }
+
+ return i;
+}
+
+//
+// Analog output readback
+//
+
+static int pci9111_ao_insn_read(comedi_device * dev,
+ comedi_subdevice * s, comedi_insn * insn, lsampl_t * data)
+{
+ int i;
+
+ for (i = 0; i < insn->n; i++) {
+ data[i] = dev_private->ao_readback & PCI9111_AO_RESOLUTION_MASK;
+ }
+
+ return i;
+}
+
+// ------------------------------------------------------------------
+//
+// DIGITAL INPUT OUTPUT SECTION
+//
+// ------------------------------------------------------------------
+
+//
+// Digital inputs
+//
+
+static int pci9111_di_insn_bits(comedi_device * dev,
+ comedi_subdevice * subdevice, comedi_insn * insn, lsampl_t * data)
+{
+ lsampl_t bits;
+
+ bits = pci9111_di_get_bits();
+ data[1] = bits;
+
+ return 2;
+}
+
+//
+// Digital outputs
+//
+
+static int pci9111_do_insn_bits(comedi_device * dev,
+ comedi_subdevice * subdevice, comedi_insn * insn, lsampl_t * data)
+{
+ lsampl_t bits;
+
+ // Only set bits that have been masked
+ // data[0] = mask
+ // data[1] = bit state
+
+ data[0] &= PCI9111_DO_MASK;
+
+ bits = subdevice->state;
+ bits &= ~data[0];
+ bits |= data[0] & data[1];
+ subdevice->state = bits;
+
+ pci9111_do_set_bits(bits);
+
+ data[1] = bits;
+
+ return 2;
+}
+
+// ------------------------------------------------------------------
+//
+// INITIALISATION SECTION
+//
+// ------------------------------------------------------------------
+
+//
+// Reset device
+//
+
+static int pci9111_reset(comedi_device * dev)
+{
+ // Set trigger source to software
+
+ plx9050_interrupt_control(dev_private->lcr_io_base, true, true, true,
+ true, false);
+
+ pci9111_trigger_source_set(dev, software);
+ pci9111_pretrigger_set(dev, false);
+ pci9111_autoscan_set(dev, false);
+
+ // Reset 8254 chip
+
+ dev_private->timer_divisor_1 = 0;
+ dev_private->timer_divisor_2 = 0;
+
+ pci9111_timer_set(dev);
+
+ return 0;
+}
+
+//
+// Attach
+//
+// - Register PCI device
+// - Declare device driver capability
+//
+
+static int pci9111_attach(comedi_device * dev, comedi_devconfig * it)
+{
+ comedi_subdevice *subdevice;
+ unsigned long io_base, io_range, lcr_io_base, lcr_io_range;
+ struct pci_dev *pci_device;
+ int error, i;
+ const pci9111_board_struct *board;
+
+ if (alloc_private(dev, sizeof(pci9111_private_data_struct)) < 0) {
+ return -ENOMEM;
+ }
+ //
+ // Probe the device to determine what device in the series it is.
+ //
+
+ printk("comedi%d: " PCI9111_DRIVER_NAME " driver\n", dev->minor);
+
+ for (pci_device = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
+ pci_device != NULL;
+ pci_device =
+ pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pci_device)) {
+ if (pci_device->vendor == PCI_VENDOR_ID_ADLINK) {
+ for (i = 0; i < pci9111_board_nbr; i++) {
+ if (pci9111_boards[i].device_id ==
+ pci_device->device) {
+ // was a particular bus/slot requested?
+ if ((it->options[0] != 0)
+ || (it->options[1] != 0)) {
+ // are we on the wrong bus/slot?
+ if (pci_device->bus->number !=
+ it->options[0]
+ || PCI_SLOT(pci_device->
+ devfn) !=
+ it->options[1]) {
+ continue;
+ }
+ }
+
+ dev->board_ptr = pci9111_boards + i;
+ board = (pci9111_board_struct *) dev->
+ board_ptr;
+ dev_private->pci_device = pci_device;
+ goto found;
+ }
+ }
+ }
+ }
+
+ printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
+ dev->minor, it->options[0], it->options[1]);
+ return -EIO;
+
+ found:
+
+ printk("comedi%d: found %s (b:s:f=%d:%d:%d) , irq=%d\n",
+ dev->minor,
+ pci9111_boards[i].name,
+ pci_device->bus->number,
+ PCI_SLOT(pci_device->devfn),
+ PCI_FUNC(pci_device->devfn), pci_device->irq);
+
+ // TODO: Warn about non-tested boards.
+
+ switch (board->device_id) {
+ };
+
+ // Read local configuration register base address [PCI_BASE_ADDRESS #1].
+
+ lcr_io_base = pci_resource_start(pci_device, 1);
+ lcr_io_range = pci_resource_len(pci_device, 1);
+
+ printk("comedi%d: local configuration registers at address 0x%4lx [0x%4lx]\n", dev->minor, lcr_io_base, lcr_io_range);
+
+ // Enable PCI device and request regions
+ if (comedi_pci_enable(pci_device, PCI9111_DRIVER_NAME) < 0) {
+ printk("comedi%d: Failed to enable PCI device and request regions\n", dev->minor);
+ return -EIO;
+ }
+ // Read PCI6308 register base address [PCI_BASE_ADDRESS #2].
+
+ io_base = pci_resource_start(pci_device, 2);
+ io_range = pci_resource_len(pci_device, 2);
+
+ printk("comedi%d: 6503 registers at address 0x%4lx [0x%4lx]\n",
+ dev->minor, io_base, io_range);
+
+ dev->iobase = io_base;
+ dev->board_name = board->name;
+ dev_private->io_range = io_range;
+ dev_private->is_valid = 0;
+ dev_private->lcr_io_base = lcr_io_base;
+ dev_private->lcr_io_range = lcr_io_range;
+
+ pci9111_reset(dev);
+
+ // Irq setup
+
+ dev->irq = 0;
+ if (pci_device->irq > 0) {
+ if (comedi_request_irq(pci_device->irq,
+ pci9111_interrupt,
+ IRQF_SHARED, PCI9111_DRIVER_NAME, dev) != 0) {
+ printk("comedi%d: unable to allocate irq %u\n",
+ dev->minor, pci_device->irq);
+ return -EINVAL;
+ }
+ }
+ dev->irq = pci_device->irq;
+
+ //
+ // TODO: Add external multiplexer setup (according to option[2]).
+ //
+
+ if ((error = alloc_subdevices(dev, 4)) < 0)
+ return error;
+
+ subdevice = dev->subdevices + 0;
+ dev->read_subdev = subdevice;
+
+ subdevice->type = COMEDI_SUBD_AI;
+ subdevice->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_CMD_READ;
+
+ //
+ // TODO: Add external multiplexer data
+ //
+ // if (devpriv->usemux) { subdevice->n_chan = devpriv->usemux; }
+ // else { subdevice->n_chan = this_board->n_aichan; }
+ //
+
+ subdevice->n_chan = board->ai_channel_nbr;
+ subdevice->maxdata = board->ai_resolution_mask;
+ subdevice->len_chanlist = board->ai_channel_nbr;
+ subdevice->range_table = board->ai_range_list;
+ subdevice->cancel = pci9111_ai_cancel;
+ subdevice->insn_read = pci9111_ai_insn_read;
+ subdevice->do_cmdtest = pci9111_ai_do_cmd_test;
+ subdevice->do_cmd = pci9111_ai_do_cmd;
+ subdevice->munge = pci9111_ai_munge;
+
+ subdevice = dev->subdevices + 1;
+ subdevice->type = COMEDI_SUBD_AO;
+ subdevice->subdev_flags = SDF_WRITABLE | SDF_COMMON;
+ subdevice->n_chan = board->ao_channel_nbr;
+ subdevice->maxdata = board->ao_resolution_mask;
+ subdevice->len_chanlist = board->ao_channel_nbr;
+ subdevice->range_table = board->ao_range_list;
+ subdevice->insn_write = pci9111_ao_insn_write;
+ subdevice->insn_read = pci9111_ao_insn_read;
+
+ subdevice = dev->subdevices + 2;
+ subdevice->type = COMEDI_SUBD_DI;
+ subdevice->subdev_flags = SDF_READABLE;
+ subdevice->n_chan = PCI9111_DI_CHANNEL_NBR;
+ subdevice->maxdata = 1;
+ subdevice->range_table = &range_digital;
+ subdevice->insn_bits = pci9111_di_insn_bits;
+
+ subdevice = dev->subdevices + 3;
+ subdevice->type = COMEDI_SUBD_DO;
+ subdevice->subdev_flags = SDF_READABLE | SDF_WRITABLE;
+ subdevice->n_chan = PCI9111_DO_CHANNEL_NBR;
+ subdevice->maxdata = 1;
+ subdevice->range_table = &range_digital;
+ subdevice->insn_bits = pci9111_do_insn_bits;
+
+ dev_private->is_valid = 1;
+
+ return 0;
+}
+
+//
+// Detach
+//
+
+static int pci9111_detach(comedi_device * dev)
+{
+ // Reset device
+
+ if (dev->private != 0) {
+ if (dev_private->is_valid)
+ pci9111_reset(dev);
+
+ }
+ // Release previously allocated irq
+
+ if (dev->irq != 0) {
+ comedi_free_irq(dev->irq, dev);
+ }
+
+ if (dev_private != 0 && dev_private->pci_device != 0) {
+ if (dev->iobase) {
+ comedi_pci_disable(dev_private->pci_device);
+ }
+ pci_dev_put(dev_private->pci_device);
+ }
+
+ return 0;
+}
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff