pcmuio.c revision e4eae7c031e3eceed6dbc6358c15d55604fb31cd
16baef150380d561a4d695a6be4fc509821c23611Calin Culianu/* 29e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * pcmuio.c 39e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Comedi driver for Winsystems PC-104 based 48/96-channel DIO boards. 49e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 59e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * COMEDI - Linux Control and Measurement Device Interface 69e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Copyright (C) 2006 Calin A. Culianu <calin@ajvar.org> 79e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 89e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * This program is free software; you can redistribute it and/or modify 99e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * it under the terms of the GNU General Public License as published by 109e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * the Free Software Foundation; either version 2 of the License, or 119e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * (at your option) any later version. 129e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 139e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * This program is distributed in the hope that it will be useful, 149e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * but WITHOUT ANY WARRANTY; without even the implied warranty of 159e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 169e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * GNU General Public License for more details. 179e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten */ 186baef150380d561a4d695a6be4fc509821c23611Calin Culianu 196baef150380d561a4d695a6be4fc509821c23611Calin Culianu/* 209e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Driver: pcmuio 219e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Description: Winsystems PC-104 based 48/96-channel DIO boards. 229e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Devices: (Winsystems) PCM-UIO48A [pcmuio48] 239e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * (Winsystems) PCM-UIO96A [pcmuio96] 249e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Author: Calin Culianu <calin@ajvar.org> 259e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Updated: Fri, 13 Jan 2006 12:01:01 -0500 269e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Status: works 279e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 289e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * A driver for the relatively straightforward-to-program PCM-UIO48A and 299e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * PCM-UIO96A boards from Winsystems. These boards use either one or two 309e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * (in the 96-DIO version) WS16C48 ASIC HighDensity I/O Chips (HDIO). This 319e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * chip is interesting in that each I/O line is individually programmable 329e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * for INPUT or OUTPUT (thus comedi_dio_config can be done on a per-channel 339e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * basis). Also, each chip supports edge-triggered interrupts for the first 349e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 24 I/O lines. Of course, since the 96-channel version of the board has 359e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * two ASICs, it can detect polarity changes on up to 48 I/O lines. Since 369e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * this is essentially an (non-PnP) ISA board, I/O Address and IRQ selection 379e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * are done through jumpers on the board. You need to pass that information 389e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * to this driver as the first and second comedi_config option, respectively. 399e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Note that the 48-channel version uses 16 bytes of IO memory and the 96- 409e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * channel version uses 32-bytes (in case you are worried about conflicts). 419e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * The 48-channel board is split into two 24-channel comedi subdevices. The 429e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 96-channel board is split into 4 24-channel DIO subdevices. 439e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 449e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Note that IRQ support has been added, but it is untested. 459e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 469e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * To use edge-detection IRQ support, pass the IRQs of both ASICS (for the 479e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 96 channel version) or just 1 ASIC (for 48-channel version). Then, use 489e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * comedi_commands with TRIG_NOW. Your callback will be called each time an 499e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * edge is triggered, and the data values will be two sample_t's, which 509e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * should be concatenated to form one 32-bit unsigned int. This value is 519e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * the mask of channels that had edges detected from your channel list. Note 529e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * that the bits positions in the mask correspond to positions in your 539e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * chanlist when you specified the command and *not* channel id's! 549e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 559e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * To set the polarity of the edge-detection interrupts pass a nonzero value 569e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * for either CR_RANGE or CR_AREF for edge-up polarity, or a zero value for 579e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * both CR_RANGE and CR_AREF if you want edge-down polarity. 589e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 599e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * In the 48-channel version: 609e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 619e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * On subdev 0, the first 24 channels channels are edge-detect channels. 629e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 639e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * In the 96-channel board you have the following channels that can do edge 649e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * detection: 659e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 669e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * subdev 0, channels 0-24 (first 24 channels of 1st ASIC) 679e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * subdev 2, channels 0-24 (first 24 channels of 2nd ASIC) 689e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * 699e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * Configuration Options: 709e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * [0] - I/O port base address 719e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * [1] - IRQ (for first ASIC, or first 24 channels) 729e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * [2] - IRQ (for second ASIC, pcmuio96 only - IRQ for chans 48-72 739e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten * can be the same as first irq!) 749e1087b5ae4c31c812e3f8a35256d7922a1cdbd6H Hartley Sweeten */ 756baef150380d561a4d695a6be4fc509821c23611Calin Culianu 7625436dc9d84f1be60ff549c9ab712bba2835f284Greg Kroah-Hartman#include <linux/interrupt.h> 775a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 786baef150380d561a4d695a6be4fc509821c23611Calin Culianu 79f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten#include "../comedidev.h" 8033782dd5edf8db3cdb7c81a3523bf743dd0209b7H Hartley Sweeten 81f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten#include "comedi_fc.h" 826baef150380d561a4d695a6be4fc509821c23611Calin Culianu 83f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten/* 84f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * Register I/O map 85f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 86f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * Offset Page 0 Page 1 Page 2 Page 3 87f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * ------ ----------- ----------- ----------- ----------- 88f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x00 Port 0 I/O Port 0 I/O Port 0 I/O Port 0 I/O 89f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x01 Port 1 I/O Port 1 I/O Port 1 I/O Port 1 I/O 90f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x02 Port 2 I/O Port 2 I/O Port 2 I/O Port 2 I/O 91f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x03 Port 3 I/O Port 3 I/O Port 3 I/O Port 3 I/O 92f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x04 Port 4 I/O Port 4 I/O Port 4 I/O Port 4 I/O 93f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x05 Port 5 I/O Port 5 I/O Port 5 I/O Port 5 I/O 94f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x06 INT_PENDING INT_PENDING INT_PENDING INT_PENDING 95f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x07 Page/Lock Page/Lock Page/Lock Page/Lock 96f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x08 N/A POL_0 ENAB_0 INT_ID0 97f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x09 N/A POL_1 ENAB_1 INT_ID1 98f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten * 0x0a N/A POL_2 ENAB_2 INT_ID2 99f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten */ 100f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_PORT_REG(x) (0x00 + (x)) 101f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_INT_PENDING_REG 0x06 102f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_PAGE_LOCK_REG 0x07 103f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_LOCK_PORT(x) ((1 << (x)) & 0x3f) 104f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_PAGE(x) (((x) & 0x3) << 6) 105f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_PAGE_MASK PCMUIO_PAGE(3) 106f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_PAGE_POL 1 107f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_PAGE_ENAB 2 108f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_PAGE_INT_ID 3 109f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten#define PCMUIO_PAGE_REG(x) (0x08 + (x)) 110f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten 111288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define CHANS_PER_PORT 8 112288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define PORTS_PER_ASIC 6 113288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define INTR_PORTS_PER_ASIC 3 114288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten/* number of channels per comedi subdevice */ 115288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define MAX_CHANS_PER_SUBDEV 24 116288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define PORTS_PER_SUBDEV (MAX_CHANS_PER_SUBDEV / CHANS_PER_PORT) 117288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define CHANS_PER_ASIC (CHANS_PER_PORT * PORTS_PER_ASIC) 118288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define INTR_CHANS_PER_ASIC 24 119288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define INTR_PORTS_PER_SUBDEV (INTR_CHANS_PER_ASIC / CHANS_PER_PORT) 120288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define MAX_DIO_CHANS (PORTS_PER_ASIC * 2 * CHANS_PER_PORT) 121288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define MAX_ASICS (MAX_DIO_CHANS / CHANS_PER_ASIC) 1226baef150380d561a4d695a6be4fc509821c23611Calin Culianu 123288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten/* IO Memory sizes */ 124288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define ASIC_IOSIZE 0x10 125288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define PCMUIO48_IOSIZE ASIC_IOSIZE 126288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define PCMUIO96_IOSIZE (ASIC_IOSIZE * 2) 1276baef150380d561a4d695a6be4fc509821c23611Calin Culianu 128288201328ba804a5630c7a460534e668703f114fH Hartley Sweeten#define NUM_PAGED_REGS 3 1296baef150380d561a4d695a6be4fc509821c23611Calin Culianu 13070a6001aeffeaa12f2a1c21470e8f3bdfb6ef8e7Bill Pembertonstruct pcmuio_board { 1316baef150380d561a4d695a6be4fc509821c23611Calin Culianu const char *name; 1326baef150380d561a4d695a6be4fc509821c23611Calin Culianu const int num_asics; 1336baef150380d561a4d695a6be4fc509821c23611Calin Culianu const int num_channels_per_port; 1346baef150380d561a4d695a6be4fc509821c23611Calin Culianu const int num_ports; 13570a6001aeffeaa12f2a1c21470e8f3bdfb6ef8e7Bill Pemberton}; 1366baef150380d561a4d695a6be4fc509821c23611Calin Culianu 137fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweetenstatic const struct pcmuio_board pcmuio_boards[] = { 138fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten { 139fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten .name = "pcmuio48", 140fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten .num_asics = 1, 141fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten .num_ports = 6, 142fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten }, { 143fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten .name = "pcmuio96", 144fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten .num_asics = 2, 145fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten .num_ports = 12, 146fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten }, 147fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten}; 148fbe3bb17b9f9e18b771c30449916807c4c25e308H Hartley Sweeten 149e15849e54405152087cd343437747db8d931fcd7Bill Pembertonstruct pcmuio_subdev_private { 1506baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* mapping of halfwords (bytes) in port/chanarray to iobase */ 1516baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned long iobases[PORTS_PER_SUBDEV]; 1526baef150380d561a4d695a6be4fc509821c23611Calin Culianu 1536baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* The below is only used for intr subdevices */ 1546baef150380d561a4d695a6be4fc509821c23611Calin Culianu struct { 155365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* if non-negative, this subdev has an interrupt asic */ 156365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten int asic; 157365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* if nonnegative, the first channel id for interrupts */ 158365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten int first_chan; 159365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* 160365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * the number of asic channels in this 161365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * subdev that have interrutps 162365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten */ 163365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten int num_asic_chans; 164365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* 165365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * if nonnegative, the first channel id with 166365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * respect to the asic that has interrupts 167365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten */ 168365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten int asic_chan; 169365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* 170365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * subdev-relative channel mask for channels 171365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * we are interested in 172365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten */ 173365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten int enabled_mask; 1746baef150380d561a4d695a6be4fc509821c23611Calin Culianu int active; 1756baef150380d561a4d695a6be4fc509821c23611Calin Culianu int stop_count; 1766baef150380d561a4d695a6be4fc509821c23611Calin Culianu int continuous; 1776baef150380d561a4d695a6be4fc509821c23611Calin Culianu spinlock_t spinlock; 1786baef150380d561a4d695a6be4fc509821c23611Calin Culianu } intr; 179e15849e54405152087cd343437747db8d931fcd7Bill Pemberton}; 1806baef150380d561a4d695a6be4fc509821c23611Calin Culianu 181055f6636d9eb27bc13236e07739e019496c21221Bill Pembertonstruct pcmuio_private { 1826baef150380d561a4d695a6be4fc509821c23611Calin Culianu struct { 183365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* shadow of POLx registers */ 184365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten unsigned char pol[NUM_PAGED_REGS]; 185365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* shadow of ENABx registers */ 186365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten unsigned char enab[NUM_PAGED_REGS]; 1876baef150380d561a4d695a6be4fc509821c23611Calin Culianu int num; 1886baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned long iobase; 1896baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned int irq; 1906baef150380d561a4d695a6be4fc509821c23611Calin Culianu spinlock_t spinlock; 1916baef150380d561a4d695a6be4fc509821c23611Calin Culianu } asics[MAX_ASICS]; 192e15849e54405152087cd343437747db8d931fcd7Bill Pemberton struct pcmuio_subdev_private *sprivs; 193055f6636d9eb27bc13236e07739e019496c21221Bill Pemberton}; 1946baef150380d561a4d695a6be4fc509821c23611Calin Culianu 195e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweetenstatic void pcmuio_write(struct comedi_device *dev, unsigned int val, 196e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten int asic, int page, int port) 197e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten{ 198e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten unsigned long iobase = dev->iobase + (asic * ASIC_IOSIZE); 199e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten 200e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten if (page == 0) { 201e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten /* Port registers are valid for any page */ 202e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten outb(val & 0xff, iobase + PCMUIO_PORT_REG(port + 0)); 203e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten outb((val >> 8) & 0xff, iobase + PCMUIO_PORT_REG(port + 1)); 204e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten outb((val >> 16) & 0xff, iobase + PCMUIO_PORT_REG(port + 2)); 205e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten } else { 206e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten outb(PCMUIO_PAGE(page), iobase + PCMUIO_PAGE_LOCK_REG); 207e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten outb(val & 0xff, iobase + PCMUIO_PAGE_REG(0)); 208e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten outb((val >> 8) & 0xff, iobase + PCMUIO_PAGE_REG(1)); 209e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten outb((val >> 16) & 0xff, iobase + PCMUIO_PAGE_REG(2)); 210e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten } 211e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten} 212e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten 2130a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int pcmuio_dio_insn_bits(struct comedi_device *dev, 2140a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2150a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 2166baef150380d561a4d695a6be4fc509821c23611Calin Culianu{ 2178099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv = s->private; 2186baef150380d561a4d695a6be4fc509821c23611Calin Culianu int byte_no; 2196baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2206baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* NOTE: 2216baef150380d561a4d695a6be4fc509821c23611Calin Culianu reading a 0 means this channel was high 2226baef150380d561a4d695a6be4fc509821c23611Calin Culianu writine a 0 sets the channel high 2236baef150380d561a4d695a6be4fc509821c23611Calin Culianu reading a 1 means this channel was low 2246baef150380d561a4d695a6be4fc509821c23611Calin Culianu writing a 1 means set this channel low 2256baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2266baef150380d561a4d695a6be4fc509821c23611Calin Culianu Therefore everything is always inverted. */ 2276baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2286baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* The insn data is a mask in data[0] and the new data 2296baef150380d561a4d695a6be4fc509821c23611Calin Culianu * in data[1], each channel cooresponding to a bit. */ 2306baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2316baef150380d561a4d695a6be4fc509821c23611Calin Culianu s->state = 0; 2326baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2336baef150380d561a4d695a6be4fc509821c23611Calin Culianu for (byte_no = 0; byte_no < s->n_chan / CHANS_PER_PORT; ++byte_no) { 2346baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* address of 8-bit port */ 2356baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned long ioaddr = subpriv->iobases[byte_no], 2360a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral /* bit offset of port in 32-bit doubleword */ 2370a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral offset = byte_no * 8; 2386baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* this 8-bit port's data */ 2396baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned char byte = 0, 2400a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral /* The write mask for this port (if any) */ 2410a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral write_mask_byte = (data[0] >> offset) & 0xff, 2420a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral /* The data byte for this port */ 2430a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral data_byte = (data[1] >> offset) & 0xff; 2446baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2456baef150380d561a4d695a6be4fc509821c23611Calin Culianu byte = inb(ioaddr); /* read all 8-bits for this port */ 2466baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2476baef150380d561a4d695a6be4fc509821c23611Calin Culianu if (write_mask_byte) { 248365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten byte &= ~write_mask_byte; 249365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten byte |= ~data_byte & write_mask_byte; 2506baef150380d561a4d695a6be4fc509821c23611Calin Culianu outb(byte, ioaddr); 2516baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 2526baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* save the digital input lines for this byte.. */ 2536baef150380d561a4d695a6be4fc509821c23611Calin Culianu s->state |= ((unsigned int)byte) << offset; 2546baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 2556baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2566baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* now return the DIO lines to data[1] - note they came inverted! */ 2576baef150380d561a4d695a6be4fc509821c23611Calin Culianu data[1] = ~s->state; 2586baef150380d561a4d695a6be4fc509821c23611Calin Culianu 259a2714e3e42e746d6c8525c35fdcc58fb60c2830dH Hartley Sweeten return insn->n; 2606baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 2616baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2620a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int pcmuio_dio_insn_config(struct comedi_device *dev, 2630a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s, 2640a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_insn *insn, unsigned int *data) 2656baef150380d561a4d695a6be4fc509821c23611Calin Culianu{ 2668099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv = s->private; 2676baef150380d561a4d695a6be4fc509821c23611Calin Culianu int chan = CR_CHAN(insn->chanspec), byte_no = chan / 8, bit_no = 2680a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral chan % 8; 2696baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned long ioaddr; 2706baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned char byte; 2716baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2726baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* Compute ioaddr for this channel */ 2736baef150380d561a4d695a6be4fc509821c23611Calin Culianu ioaddr = subpriv->iobases[byte_no]; 2746baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2756baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* NOTE: 2766baef150380d561a4d695a6be4fc509821c23611Calin Culianu writing a 0 an IO channel's bit sets the channel to INPUT 2776baef150380d561a4d695a6be4fc509821c23611Calin Culianu and pulls the line high as well 2786baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2796baef150380d561a4d695a6be4fc509821c23611Calin Culianu writing a 1 to an IO channel's bit pulls the line low 2806baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2816baef150380d561a4d695a6be4fc509821c23611Calin Culianu All channels are implicitly always in OUTPUT mode -- but when 2826baef150380d561a4d695a6be4fc509821c23611Calin Culianu they are high they can be considered to be in INPUT mode.. 2836baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2846baef150380d561a4d695a6be4fc509821c23611Calin Culianu Thus, we only force channels low if the config request was INPUT, 2856baef150380d561a4d695a6be4fc509821c23611Calin Culianu otherwise we do nothing to the hardware. */ 2866baef150380d561a4d695a6be4fc509821c23611Calin Culianu 2876baef150380d561a4d695a6be4fc509821c23611Calin Culianu switch (data[0]) { 2886baef150380d561a4d695a6be4fc509821c23611Calin Culianu case INSN_CONFIG_DIO_OUTPUT: 2896baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* save to io_bits -- don't actually do anything since 2906baef150380d561a4d695a6be4fc509821c23611Calin Culianu all input channels are also output channels... */ 2916baef150380d561a4d695a6be4fc509821c23611Calin Culianu s->io_bits |= 1 << chan; 2926baef150380d561a4d695a6be4fc509821c23611Calin Culianu break; 2936baef150380d561a4d695a6be4fc509821c23611Calin Culianu case INSN_CONFIG_DIO_INPUT: 2946baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* write a 0 to the actual register representing the channel 2956baef150380d561a4d695a6be4fc509821c23611Calin Culianu to set it to 'input'. 0 means "float high". */ 2966baef150380d561a4d695a6be4fc509821c23611Calin Culianu byte = inb(ioaddr); 2976baef150380d561a4d695a6be4fc509821c23611Calin Culianu byte &= ~(1 << bit_no); 2986baef150380d561a4d695a6be4fc509821c23611Calin Culianu /**< set input channel to '0' */ 2996baef150380d561a4d695a6be4fc509821c23611Calin Culianu 300365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* 301365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * write out byte 302365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * This is the only time we actually affect the hardware 303365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * as all channels are implicitly output -- but input 304365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten * channels are set to float-high. 305365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten */ 3066baef150380d561a4d695a6be4fc509821c23611Calin Culianu outb(byte, ioaddr); 3076baef150380d561a4d695a6be4fc509821c23611Calin Culianu 3086baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* save to io_bits */ 3096baef150380d561a4d695a6be4fc509821c23611Calin Culianu s->io_bits &= ~(1 << chan); 3106baef150380d561a4d695a6be4fc509821c23611Calin Culianu break; 3116baef150380d561a4d695a6be4fc509821c23611Calin Culianu 3126baef150380d561a4d695a6be4fc509821c23611Calin Culianu case INSN_CONFIG_DIO_QUERY: 31325985edcedea6396277003854657b5f3cb31a628Lucas De Marchi /* retrieve from shadow register */ 3146baef150380d561a4d695a6be4fc509821c23611Calin Culianu data[1] = 3150a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; 3166baef150380d561a4d695a6be4fc509821c23611Calin Culianu return insn->n; 3176baef150380d561a4d695a6be4fc509821c23611Calin Culianu break; 3186baef150380d561a4d695a6be4fc509821c23611Calin Culianu 3196baef150380d561a4d695a6be4fc509821c23611Calin Culianu default: 3206baef150380d561a4d695a6be4fc509821c23611Calin Culianu return -EINVAL; 3216baef150380d561a4d695a6be4fc509821c23611Calin Culianu break; 3226baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 3236baef150380d561a4d695a6be4fc509821c23611Calin Culianu 3246baef150380d561a4d695a6be4fc509821c23611Calin Culianu return insn->n; 3256baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 3266baef150380d561a4d695a6be4fc509821c23611Calin Culianu 3276b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweetenstatic void switch_page(struct comedi_device *dev, int asic, int page) 3286b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten{ 32946317da71ee85dccc351735e8b463123f4d448a3H Hartley Sweeten outb(PCMUIO_PAGE(page), 330f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten dev->iobase + ASIC_IOSIZE * asic + PCMUIO_PAGE_LOCK_REG); 3316b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten} 3326b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 333da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic void init_asics(struct comedi_device *dev) 334e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten{ 335a28b59957d3ad01481c2ea87aca50cfdb85417f2H Hartley Sweeten const struct pcmuio_board *board = comedi_board(dev); 3366baef150380d561a4d695a6be4fc509821c23611Calin Culianu int asic; 3376baef150380d561a4d695a6be4fc509821c23611Calin Culianu 338a28b59957d3ad01481c2ea87aca50cfdb85417f2H Hartley Sweeten for (asic = 0; asic < board->num_asics; ++asic) { 3396baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* first, clear all the DIO port bits */ 340e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten pcmuio_write(dev, 0, asic, 0, 0); 341e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten pcmuio_write(dev, 0, asic, 0, 3); 3426baef150380d561a4d695a6be4fc509821c23611Calin Culianu 3436baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* Next, clear all the paged registers for each page */ 344e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten pcmuio_write(dev, 0, asic, PCMUIO_PAGE_POL, 0); 345e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten pcmuio_write(dev, 0, asic, PCMUIO_PAGE_ENAB, 0); 346e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten pcmuio_write(dev, 0, asic, PCMUIO_PAGE_INT_ID, 0); 3476baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 3486baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 3496baef150380d561a4d695a6be4fc509821c23611Calin Culianu 3506b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweetenstatic void pcmuio_stop_intr(struct comedi_device *dev, 3516b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten struct comedi_subdevice *s) 3526b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten{ 3538099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv = s->private; 354e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten int asic; 3556b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 3566b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten asic = subpriv->intr.asic; 3576b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten if (asic < 0) 3586b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten return; /* not an interrupt subdev */ 3596b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 3606b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.enabled_mask = 0; 3616b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.active = 0; 362920e2ffbe243fb0555b2c238e26fe7dbc03db98cH Hartley Sweeten s->async->inttrig = NULL; 363e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten 364e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten /* disable all intrs for this subdev.. */ 365e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten pcmuio_write(dev, 0, asic, PCMUIO_PAGE_ENAB, 0); 3666b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten} 3676b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 3683b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweetenstatic void pcmuio_handle_intr_subdev(struct comedi_device *dev, 3693b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten struct comedi_subdevice *s, 3703b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned triggered) 3713b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten{ 3723b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten struct pcmuio_subdev_private *subpriv = s->private; 3733b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned int len = s->async->cmd.chanlist_len; 3743b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned oldevents = s->async->events; 3753b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned int val = 0; 3763b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned long flags; 3773b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned mytrig; 3783b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned int i; 3793b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 3803b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten spin_lock_irqsave(&subpriv->intr.spinlock, flags); 3813b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 3823b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (!subpriv->intr.active) 3833b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten goto done; 3843b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 3853b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten mytrig = triggered >> subpriv->intr.asic_chan; 3863b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten mytrig &= ((0x1 << subpriv->intr.num_asic_chans) - 1); 3873b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten mytrig <<= subpriv->intr.first_chan; 3883b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 3893b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (!(mytrig & subpriv->intr.enabled_mask)) 3903b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten goto done; 3913b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 3923b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten for (i = 0; i < len; i++) { 3933b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned int chan = CR_CHAN(s->async->cmd.chanlist[i]); 3943b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (mytrig & (1U << chan)) 3953b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten val |= (1U << i); 3963b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 3973b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 3983b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* Write the scan to the buffer. */ 3993b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (comedi_buf_put(s->async, ((short *)&val)[0]) && 4003b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten comedi_buf_put(s->async, ((short *)&val)[1])) { 4013b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten s->async->events |= (COMEDI_CB_BLOCK | COMEDI_CB_EOS); 4023b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } else { 4033b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* Overflow! Stop acquisition!! */ 4043b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* TODO: STOP_ACQUISITION_CALL_HERE!! */ 4053b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten pcmuio_stop_intr(dev, s); 4063b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 4073b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 4083b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* Check for end of acquisition. */ 4093b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (!subpriv->intr.continuous) { 4103b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* stop_src == TRIG_COUNT */ 4113b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (subpriv->intr.stop_count > 0) { 4123b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten subpriv->intr.stop_count--; 4133b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (subpriv->intr.stop_count == 0) { 4143b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten s->async->events |= COMEDI_CB_EOA; 4153b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* TODO: STOP_ACQUISITION_CALL_HERE!! */ 4163b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten pcmuio_stop_intr(dev, s); 4173b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 4183b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 4193b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 4203b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 4213b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweetendone: 4223b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten spin_unlock_irqrestore(&subpriv->intr.spinlock, flags); 4233b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 4243b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (oldevents != s->async->events) 4253b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten comedi_event(dev, s); 4263b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten} 4273b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 4283b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweetenstatic int pcmuio_handle_asic_interrupt(struct comedi_device *dev, int asic) 4296baef150380d561a4d695a6be4fc509821c23611Calin Culianu{ 4309a1a6cf8ae5ca58171e117335b9983e3cfa2185cH Hartley Sweeten struct pcmuio_private *devpriv = dev->private; 4318099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv; 4323b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned long iobase = devpriv->asics[asic].iobase; 4333b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned triggered = 0; 4343b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten int got1 = 0; 4353b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned long flags; 4363b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned char int_pend; 43768720ae68a94444387d56bc5a166396e33e420a5H Hartley Sweeten int i; 4386baef150380d561a4d695a6be4fc509821c23611Calin Culianu 4393b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten spin_lock_irqsave(&devpriv->asics[asic].spinlock, flags); 4403b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 441f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten int_pend = inb(iobase + PCMUIO_INT_PENDING_REG) & 0x07; 4423b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (int_pend) { 4433b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten for (i = 0; i < INTR_PORTS_PER_ASIC; ++i) { 4443b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (int_pend & (0x1 << i)) { 4453b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten unsigned char val; 4463b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 447f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten switch_page(dev, asic, PCMUIO_PAGE_INT_ID); 448f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten val = inb(iobase + PCMUIO_PAGE_REG(i)); 4493b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (val) 4503b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* clear pending interrupt */ 451f45a1f26eae4cadbfeb65b4b36bfa3583f694066H Hartley Sweeten outb(0, iobase + PCMUIO_PAGE_REG(i)); 4523b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 4533b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten triggered |= (val << (i * 8)); 4546baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 4553b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 4566baef150380d561a4d695a6be4fc509821c23611Calin Culianu 4573b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten ++got1; 4583b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 4593b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 4603b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten spin_unlock_irqrestore(&devpriv->asics[asic].spinlock, flags); 4613b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 4623b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (triggered) { 4633b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten struct comedi_subdevice *s; 4643b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* TODO here: dispatch io lines to subdevs with commands.. */ 4653b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten for (i = 0; i < dev->n_subdevices; i++) { 4663b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten s = &dev->subdevices[i]; 4673b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten subpriv = s->private; 4683b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (subpriv->intr.asic == asic) { 4693b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* 4703b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten * This is an interrupt subdev, and it 4713b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten * matches this asic! 4723b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten */ 4733b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten pcmuio_handle_intr_subdev(dev, s, 4743b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten triggered); 4756baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 4763b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 4773b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten } 4783b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten return got1; 4793b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten} 4803b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten 4813b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweetenstatic irqreturn_t interrupt_pcmuio(int irq, void *d) 4823b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten{ 4833b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten struct comedi_device *dev = d; 4843b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten struct pcmuio_private *devpriv = dev->private; 4853b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten int got1 = 0; 4863b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten int asic; 4876baef150380d561a4d695a6be4fc509821c23611Calin Culianu 4883b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten for (asic = 0; asic < MAX_ASICS; ++asic) { 4893b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (irq == devpriv->asics[asic].irq) { 4903b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten /* it is an interrupt for ASIC #asic */ 4913b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten if (pcmuio_handle_asic_interrupt(dev, asic)) 4923b48c535802eb515069b4f2ff26f0601eabf51b8H Hartley Sweeten got1++; 4936baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 4946baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 4956baef150380d561a4d695a6be4fc509821c23611Calin Culianu if (!got1) 4966baef150380d561a4d695a6be4fc509821c23611Calin Culianu return IRQ_NONE; /* interrupt from other source */ 4976baef150380d561a4d695a6be4fc509821c23611Calin Culianu return IRQ_HANDLED; 4986baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 4996baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5000a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukralstatic int pcmuio_start_intr(struct comedi_device *dev, 5010a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral struct comedi_subdevice *s) 5026baef150380d561a4d695a6be4fc509821c23611Calin Culianu{ 5038099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv = s->private; 5049a1a6cf8ae5ca58171e117335b9983e3cfa2185cH Hartley Sweeten 5056baef150380d561a4d695a6be4fc509821c23611Calin Culianu if (!subpriv->intr.continuous && subpriv->intr.stop_count == 0) { 5066baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* An empty acquisition! */ 5076baef150380d561a4d695a6be4fc509821c23611Calin Culianu s->async->events |= COMEDI_CB_EOA; 5086baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.active = 0; 5096baef150380d561a4d695a6be4fc509821c23611Calin Culianu return 1; 5106baef150380d561a4d695a6be4fc509821c23611Calin Culianu } else { 5116baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned bits = 0, pol_bits = 0, n; 512e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten int asic; 513ea6d0d4cab4f4f2d6a88f3bce4707fe92696fd3fBill Pemberton struct comedi_cmd *cmd = &s->async->cmd; 5146baef150380d561a4d695a6be4fc509821c23611Calin Culianu 515c3744138715045adb316284ee7a1e608f0278f6cBill Pemberton asic = subpriv->intr.asic; 516c3744138715045adb316284ee7a1e608f0278f6cBill Pemberton if (asic < 0) 5176baef150380d561a4d695a6be4fc509821c23611Calin Culianu return 1; /* not an interrupt 5186baef150380d561a4d695a6be4fc509821c23611Calin Culianu subdev */ 5196baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.enabled_mask = 0; 5206baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.active = 1; 5216baef150380d561a4d695a6be4fc509821c23611Calin Culianu if (cmd->chanlist) { 5226baef150380d561a4d695a6be4fc509821c23611Calin Culianu for (n = 0; n < cmd->chanlist_len; n++) { 5236baef150380d561a4d695a6be4fc509821c23611Calin Culianu bits |= (1U << CR_CHAN(cmd->chanlist[n])); 5246baef150380d561a4d695a6be4fc509821c23611Calin Culianu pol_bits |= (CR_AREF(cmd->chanlist[n]) 5250a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral || CR_RANGE(cmd-> 5260a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral chanlist[n]) ? 1U : 0U) 5270a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral << CR_CHAN(cmd->chanlist[n]); 5286baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 5296baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 5306baef150380d561a4d695a6be4fc509821c23611Calin Culianu bits &= ((0x1 << subpriv->intr.num_asic_chans) - 5310a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral 1) << subpriv->intr.first_chan; 5326baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.enabled_mask = bits; 5336baef150380d561a4d695a6be4fc509821c23611Calin Culianu 534e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten /* set pol and enab intrs for this subdev.. */ 535e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten pcmuio_write(dev, pol_bits, asic, PCMUIO_PAGE_POL, 0); 536e4eae7c031e3eceed6dbc6358c15d55604fb31cdH Hartley Sweeten pcmuio_write(dev, bits, asic, PCMUIO_PAGE_ENAB, 0); 5376baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 5386baef150380d561a4d695a6be4fc509821c23611Calin Culianu return 0; 5396baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 5406baef150380d561a4d695a6be4fc509821c23611Calin Culianu 541da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic int pcmuio_cancel(struct comedi_device *dev, struct comedi_subdevice *s) 5426baef150380d561a4d695a6be4fc509821c23611Calin Culianu{ 5438099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv = s->private; 5446baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned long flags; 5456baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5465f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman spin_lock_irqsave(&subpriv->intr.spinlock, flags); 5476baef150380d561a4d695a6be4fc509821c23611Calin Culianu if (subpriv->intr.active) 5486baef150380d561a4d695a6be4fc509821c23611Calin Culianu pcmuio_stop_intr(dev, s); 5495f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman spin_unlock_irqrestore(&subpriv->intr.spinlock, flags); 5506baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5516baef150380d561a4d695a6be4fc509821c23611Calin Culianu return 0; 5526baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 5536baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5546baef150380d561a4d695a6be4fc509821c23611Calin Culianu/* 5556baef150380d561a4d695a6be4fc509821c23611Calin Culianu * Internal trigger function to start acquisition for an 'INTERRUPT' subdevice. 5566baef150380d561a4d695a6be4fc509821c23611Calin Culianu */ 5576baef150380d561a4d695a6be4fc509821c23611Calin Culianustatic int 558da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonpcmuio_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s, 5590a85b6f0ab0d2edb0d41b32697111ce0e4f43496Mithlesh Thukral unsigned int trignum) 5606baef150380d561a4d695a6be4fc509821c23611Calin Culianu{ 5618099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv = s->private; 5626baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned long flags; 5636baef150380d561a4d695a6be4fc509821c23611Calin Culianu int event = 0; 5646baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5656baef150380d561a4d695a6be4fc509821c23611Calin Culianu if (trignum != 0) 5666baef150380d561a4d695a6be4fc509821c23611Calin Culianu return -EINVAL; 5676baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5685f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman spin_lock_irqsave(&subpriv->intr.spinlock, flags); 569920e2ffbe243fb0555b2c238e26fe7dbc03db98cH Hartley Sweeten s->async->inttrig = NULL; 5700389245f0c5692111c0dc8d997fc4af72d789472Ravishankar karkala Mallikarjunayya if (subpriv->intr.active) 5716baef150380d561a4d695a6be4fc509821c23611Calin Culianu event = pcmuio_start_intr(dev, s); 5720389245f0c5692111c0dc8d997fc4af72d789472Ravishankar karkala Mallikarjunayya 5735f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman spin_unlock_irqrestore(&subpriv->intr.spinlock, flags); 5746baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5750389245f0c5692111c0dc8d997fc4af72d789472Ravishankar karkala Mallikarjunayya if (event) 5766baef150380d561a4d695a6be4fc509821c23611Calin Culianu comedi_event(dev, s); 5776baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5786baef150380d561a4d695a6be4fc509821c23611Calin Culianu return 1; 5796baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 5806baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5816baef150380d561a4d695a6be4fc509821c23611Calin Culianu/* 5826baef150380d561a4d695a6be4fc509821c23611Calin Culianu * 'do_cmd' function for an 'INTERRUPT' subdevice. 5836baef150380d561a4d695a6be4fc509821c23611Calin Culianu */ 584da91b2692e0939b307f9047192d2b9fe07793e7aBill Pembertonstatic int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s) 5856baef150380d561a4d695a6be4fc509821c23611Calin Culianu{ 5868099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv = s->private; 587ea6d0d4cab4f4f2d6a88f3bce4707fe92696fd3fBill Pemberton struct comedi_cmd *cmd = &s->async->cmd; 5886baef150380d561a4d695a6be4fc509821c23611Calin Culianu unsigned long flags; 5896baef150380d561a4d695a6be4fc509821c23611Calin Culianu int event = 0; 5906baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5915f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman spin_lock_irqsave(&subpriv->intr.spinlock, flags); 5926baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.active = 1; 5936baef150380d561a4d695a6be4fc509821c23611Calin Culianu 5946baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* Set up end of acquisition. */ 5956baef150380d561a4d695a6be4fc509821c23611Calin Culianu switch (cmd->stop_src) { 5966baef150380d561a4d695a6be4fc509821c23611Calin Culianu case TRIG_COUNT: 5976baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.continuous = 0; 5986baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.stop_count = cmd->stop_arg; 5996baef150380d561a4d695a6be4fc509821c23611Calin Culianu break; 6006baef150380d561a4d695a6be4fc509821c23611Calin Culianu default: 6016baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* TRIG_NONE */ 6026baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.continuous = 1; 6036baef150380d561a4d695a6be4fc509821c23611Calin Culianu subpriv->intr.stop_count = 0; 6046baef150380d561a4d695a6be4fc509821c23611Calin Culianu break; 6056baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 6066baef150380d561a4d695a6be4fc509821c23611Calin Culianu 6076baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* Set up start of acquisition. */ 6086baef150380d561a4d695a6be4fc509821c23611Calin Culianu switch (cmd->start_src) { 6096baef150380d561a4d695a6be4fc509821c23611Calin Culianu case TRIG_INT: 6106baef150380d561a4d695a6be4fc509821c23611Calin Culianu s->async->inttrig = pcmuio_inttrig_start_intr; 6116baef150380d561a4d695a6be4fc509821c23611Calin Culianu break; 6126baef150380d561a4d695a6be4fc509821c23611Calin Culianu default: 6136baef150380d561a4d695a6be4fc509821c23611Calin Culianu /* TRIG_NOW */ 6146baef150380d561a4d695a6be4fc509821c23611Calin Culianu event = pcmuio_start_intr(dev, s); 6156baef150380d561a4d695a6be4fc509821c23611Calin Culianu break; 6166baef150380d561a4d695a6be4fc509821c23611Calin Culianu } 6175f74ea14c07fee91d3bdbaad88bff6264c6200e6Greg Kroah-Hartman spin_unlock_irqrestore(&subpriv->intr.spinlock, flags); 6186baef150380d561a4d695a6be4fc509821c23611Calin Culianu 6190389245f0c5692111c0dc8d997fc4af72d789472Ravishankar karkala Mallikarjunayya if (event) 6206baef150380d561a4d695a6be4fc509821c23611Calin Culianu comedi_event(dev, s); 6216baef150380d561a4d695a6be4fc509821c23611Calin Culianu 6226baef150380d561a4d695a6be4fc509821c23611Calin Culianu return 0; 6236baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 6246baef150380d561a4d695a6be4fc509821c23611Calin Culianu 625f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweetenstatic int pcmuio_cmdtest(struct comedi_device *dev, 626f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten struct comedi_subdevice *s, 627f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten struct comedi_cmd *cmd) 6286baef150380d561a4d695a6be4fc509821c23611Calin Culianu{ 629f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten int err = 0; 630f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 631f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten /* Step 1 : check if triggers are trivially valid */ 632f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 633f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT); 634f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT); 635f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW); 636f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); 637f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); 638f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 639f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten if (err) 640f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten return 1; 641f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 642f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten /* Step 2a : make sure trigger sources are unique */ 643f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 644f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_is_unique(cmd->start_src); 645f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_is_unique(cmd->stop_src); 646f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 647f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten /* Step 2b : and mutually compatible */ 648f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 649f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten if (err) 650f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten return 2; 651f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 652f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten /* Step 3: check if arguments are trivially valid */ 653f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 654f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0); 655f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0); 656f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0); 657f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); 658f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 659f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten switch (cmd->stop_src) { 660f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten case TRIG_COUNT: 661f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten /* any count allowed */ 662f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten break; 663f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten case TRIG_NONE: 664f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0); 665f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten break; 666f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten default: 667f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten break; 668f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten } 669f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 670f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten if (err) 671f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten return 3; 672f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 673f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten /* step 4: fix up any arguments */ 674f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 675f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten /* if (err) return 4; */ 676f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten 677f95d45d114e1fd024bdee67beb80fce9b9c96126H Hartley Sweeten return 0; 6786baef150380d561a4d695a6be4fc509821c23611Calin Culianu} 6796baef150380d561a4d695a6be4fc509821c23611Calin Culianu 6806b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweetenstatic int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it) 6816b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten{ 682a28b59957d3ad01481c2ea87aca50cfdb85417f2H Hartley Sweeten const struct pcmuio_board *board = comedi_board(dev); 6836b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten struct comedi_subdevice *s; 6848099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_private *devpriv; 6858099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten struct pcmuio_subdev_private *subpriv; 6866b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten int sdev_no, chans_left, n_subdevs, port, asic, thisasic_chanct = 0; 6876b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten unsigned int irq[MAX_ASICS]; 6888b6c56949ffa83dbc2a6e8fa3f98b10a19372207H Hartley Sweeten int ret; 6896b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 6906b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten irq[0] = it->options[1]; 6916b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten irq[1] = it->options[2]; 6926b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 69335626c2efecd6dad6ef67124ae2604385b717ed7H Hartley Sweeten ret = comedi_request_region(dev, it->options[0], 69435626c2efecd6dad6ef67124ae2604385b717ed7H Hartley Sweeten board->num_asics * ASIC_IOSIZE); 69535626c2efecd6dad6ef67124ae2604385b717ed7H Hartley Sweeten if (ret) 69635626c2efecd6dad6ef67124ae2604385b717ed7H Hartley Sweeten return ret; 6976b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 698c34fa261b0ac3a862ccd3f71ee55a16b920dfc83H Hartley Sweeten devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); 699c34fa261b0ac3a862ccd3f71ee55a16b920dfc83H Hartley Sweeten if (!devpriv) 700c34fa261b0ac3a862ccd3f71ee55a16b920dfc83H Hartley Sweeten return -ENOMEM; 701c34fa261b0ac3a862ccd3f71ee55a16b920dfc83H Hartley Sweeten dev->private = devpriv; 7026b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7036b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten for (asic = 0; asic < MAX_ASICS; ++asic) { 7046b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten devpriv->asics[asic].num = asic; 7056b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten devpriv->asics[asic].iobase = dev->iobase + asic * ASIC_IOSIZE; 7066b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten spin_lock_init(&devpriv->asics[asic].spinlock); 7076b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 7086b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 709a28b59957d3ad01481c2ea87aca50cfdb85417f2H Hartley Sweeten chans_left = CHANS_PER_ASIC * board->num_asics; 71000b863964d3d24e7ae1dfb571e45707136c6cf42H Hartley Sweeten n_subdevs = (chans_left / MAX_CHANS_PER_SUBDEV) + 71100b863964d3d24e7ae1dfb571e45707136c6cf42H Hartley Sweeten (!!(chans_left % MAX_CHANS_PER_SUBDEV)); 71278110bb8dc4a7ff331bfa3cfe7d4e287cfb3f22bJoe Perches devpriv->sprivs = kcalloc(n_subdevs, 71378110bb8dc4a7ff331bfa3cfe7d4e287cfb3f22bJoe Perches sizeof(struct pcmuio_subdev_private), 71478110bb8dc4a7ff331bfa3cfe7d4e287cfb3f22bJoe Perches GFP_KERNEL); 71578110bb8dc4a7ff331bfa3cfe7d4e287cfb3f22bJoe Perches if (!devpriv->sprivs) 7166b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten return -ENOMEM; 717eea6838b1206b0ac90110f1a6f58e101aa496e99H Hartley Sweeten 7188b6c56949ffa83dbc2a6e8fa3f98b10a19372207H Hartley Sweeten ret = comedi_alloc_subdevices(dev, n_subdevs); 7198b6c56949ffa83dbc2a6e8fa3f98b10a19372207H Hartley Sweeten if (ret) 7208b6c56949ffa83dbc2a6e8fa3f98b10a19372207H Hartley Sweeten return ret; 7216b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7226b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten port = 0; 7236b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten asic = 0; 7246b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten for (sdev_no = 0; sdev_no < (int)dev->n_subdevices; ++sdev_no) { 7256b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten int byte_no; 7266b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 72768720ae68a94444387d56bc5a166396e33e420a5H Hartley Sweeten s = &dev->subdevices[sdev_no]; 7288099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten subpriv = &devpriv->sprivs[sdev_no]; 7298099a9841f1d9ff15de8f12cf1ba36b574d804c8H Hartley Sweeten s->private = subpriv; 7306b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->maxdata = 1; 7316b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->range_table = &range_digital; 7326b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->subdev_flags = SDF_READABLE | SDF_WRITABLE; 7336b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->type = COMEDI_SUBD_DIO; 7346b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->insn_bits = pcmuio_dio_insn_bits; 7356b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->insn_config = pcmuio_dio_insn_config; 7366b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->n_chan = min(chans_left, MAX_CHANS_PER_SUBDEV); 7376b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.asic = -1; 7386b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.first_chan = -1; 7396b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.asic_chan = -1; 7406b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.num_asic_chans = -1; 7416b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.active = 0; 7426b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->len_chanlist = 1; 7436b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7446b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten /* save the ioport address for each 'port' of 8 channels in the 7456b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subdevice */ 7466d28bea92c27c383dd224ca6327d84d0dde2e770H Hartley Sweeten for (byte_no = 0; byte_no < PORTS_PER_SUBDEV; 7476d28bea92c27c383dd224ca6327d84d0dde2e770H Hartley Sweeten ++byte_no, ++port) { 7486b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten if (port >= PORTS_PER_ASIC) { 7496b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten port = 0; 7506b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten ++asic; 7516b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten thisasic_chanct = 0; 7526b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 7536b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->iobases[byte_no] = 7546b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten devpriv->asics[asic].iobase + port; 7556b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7566b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten if (thisasic_chanct < 7576b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten CHANS_PER_PORT * INTR_PORTS_PER_ASIC 7586b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten && subpriv->intr.asic < 0) { 759365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* setup the interrupt subdevice */ 7606b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.asic = asic; 7616b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.active = 0; 7626b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.stop_count = 0; 7636b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.first_chan = byte_no * 8; 7646b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.asic_chan = thisasic_chanct; 7656b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten subpriv->intr.num_asic_chans = 7666b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->n_chan - subpriv->intr.first_chan; 7676b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten dev->read_subdev = s; 7686b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->subdev_flags |= SDF_CMD_READ; 7696b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->cancel = pcmuio_cancel; 7706b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->do_cmd = pcmuio_cmd; 7716b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->do_cmdtest = pcmuio_cmdtest; 7726b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten s->len_chanlist = subpriv->intr.num_asic_chans; 7736b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 7746b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten thisasic_chanct += CHANS_PER_PORT; 7756b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 7766b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten spin_lock_init(&subpriv->intr.spinlock); 7776b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7786b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten chans_left -= s->n_chan; 7796b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7806b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten if (!chans_left) { 781365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten /* reset to our first asic, to do intr subdevs */ 782365c473e1da54e209aa8c01da2084c896f18fb20H Hartley Sweeten asic = 0; 7836b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten port = 0; 7846b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 7856b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7866b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 7876b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7886b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten init_asics(dev); /* clear out all the registers, basically */ 7896b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 7906b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten for (asic = 0; irq[0] && asic < MAX_ASICS; ++asic) { 7916b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten if (irq[asic] 7926b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten && request_irq(irq[asic], interrupt_pcmuio, 793a28b59957d3ad01481c2ea87aca50cfdb85417f2H Hartley Sweeten IRQF_SHARED, board->name, dev)) { 7946b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten int i; 7956b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten /* unroll the allocated irqs.. */ 7966b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten for (i = asic - 1; i >= 0; --i) { 7976b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten free_irq(irq[i], dev); 7986b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten devpriv->asics[i].irq = irq[i] = 0; 7996b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 8006b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten irq[asic] = 0; 8016b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 8026b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten devpriv->asics[asic].irq = irq[asic]; 8036b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 8046b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 8056b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten if (irq[0]) { 806f41ad6675f2d5705a0fc1e210af8eb4a27dbacb4Ian Abbott dev_dbg(dev->class_dev, "irq: %u\n", irq[0]); 807a28b59957d3ad01481c2ea87aca50cfdb85417f2H Hartley Sweeten if (irq[1] && board->num_asics == 2) 808f41ad6675f2d5705a0fc1e210af8eb4a27dbacb4Ian Abbott dev_dbg(dev->class_dev, "second ASIC irq: %u\n", 809f41ad6675f2d5705a0fc1e210af8eb4a27dbacb4Ian Abbott irq[1]); 8106b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } else { 811f41ad6675f2d5705a0fc1e210af8eb4a27dbacb4Ian Abbott dev_dbg(dev->class_dev, "(IRQ mode disabled)\n"); 8126b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 8136b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 8146b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 8156b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten return 1; 8166b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten} 8176b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 818484ecc95d9cdfa8b2f7029e2f3409cf078aed4abH Hartley Sweetenstatic void pcmuio_detach(struct comedi_device *dev) 8196b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten{ 8209a1a6cf8ae5ca58171e117335b9983e3cfa2185cH Hartley Sweeten struct pcmuio_private *devpriv = dev->private; 8216b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten int i; 8226b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 8236b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten for (i = 0; i < MAX_ASICS; ++i) { 8246b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten if (devpriv->asics[i].irq) 8256b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten free_irq(devpriv->asics[i].irq, dev); 8266b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten } 8276b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten if (devpriv && devpriv->sprivs) 8286b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten kfree(devpriv->sprivs); 829a32c6d0084992d3e58a93120c9ce9527e80c651eH Hartley Sweeten comedi_legacy_detach(dev); 8306b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten} 8316b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten 832294f930d98be86fb4f34302c718a49719650857fH Hartley Sweetenstatic struct comedi_driver pcmuio_driver = { 8336b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten .driver_name = "pcmuio", 8346b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten .module = THIS_MODULE, 8356b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten .attach = pcmuio_attach, 8366b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten .detach = pcmuio_detach, 8376b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten .board_name = &pcmuio_boards[0].name, 8386b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten .offset = sizeof(struct pcmuio_board), 8396b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten .num_names = ARRAY_SIZE(pcmuio_boards), 8406b19f9c6bee7afcd1e5dee9528333b2aa52de404H Hartley Sweeten}; 841294f930d98be86fb4f34302c718a49719650857fH Hartley Sweetenmodule_comedi_driver(pcmuio_driver); 84290f703d30dd3e0c16ff80f35e34e511385a05ad5Arun Thomas 84390f703d30dd3e0c16ff80f35e34e511385a05ad5Arun ThomasMODULE_AUTHOR("Comedi http://www.comedi.org"); 84490f703d30dd3e0c16ff80f35e34e511385a05ad5Arun ThomasMODULE_DESCRIPTION("Comedi low-level driver"); 84590f703d30dd3e0c16ff80f35e34e511385a05ad5Arun ThomasMODULE_LICENSE("GPL"); 846