Tidy up the multi-line comments at the beginning of the file to follow the CodingStyle. Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx> Cc: Ian Abbott <abbotti@xxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/staging/comedi/drivers/pcmuio.c | 142 ++++++++++++++++---------------- 1 file changed, 72 insertions(+), 70 deletions(-) diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c index 15c8a9a..9d8b780 100644 --- a/drivers/staging/comedi/drivers/pcmuio.c +++ b/drivers/staging/comedi/drivers/pcmuio.c @@ -1,75 +1,77 @@ /* - comedi/drivers/pcmuio.c - Driver for Winsystems PC-104 based 48-channel and 96-channel DIO boards. - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 2006 Calin A. Culianu <calin@xxxxxxxxx> - - 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. -*/ + * pcmuio.c + * Comedi driver for Winsystems PC-104 based 48/96-channel DIO boards. + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 2006 Calin A. Culianu <calin@xxxxxxxxx> + * + * 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. + */ + /* -Driver: pcmuio -Description: A driver for the PCM-UIO48A and PCM-UIO96A boards from Winsystems. -Devices: [Winsystems] PCM-UIO48A (pcmuio48), PCM-UIO96A (pcmuio96) -Author: Calin Culianu <calin@xxxxxxxxx> -Updated: Fri, 13 Jan 2006 12:01:01 -0500 -Status: works - -A driver for the relatively straightforward-to-program PCM-UIO48A and -PCM-UIO96A boards from Winsystems. These boards use either one or two -(in the 96-DIO version) WS16C48 ASIC HighDensity I/O Chips (HDIO). -This chip is interesting in that each I/O line is individually -programmable for INPUT or OUTPUT (thus comedi_dio_config can be done -on a per-channel basis). Also, each chip supports edge-triggered -interrupts for the first 24 I/O lines. Of course, since the -96-channel version of the board has two ASICs, it can detect polarity -changes on up to 48 I/O lines. Since this is essentially an (non-PnP) -ISA board, I/O Address and IRQ selection are done through jumpers on -the board. You need to pass that information to this driver as the -first and second comedi_config option, respectively. Note that the -48-channel version uses 16 bytes of IO memory and the 96-channel -version uses 32-bytes (in case you are worried about conflicts). The -48-channel board is split into two 24-channel comedi subdevices. -The 96-channel board is split into 4 24-channel DIO subdevices. - -Note that IRQ support has been added, but it is untested. - -To use edge-detection IRQ support, pass the IRQs of both ASICS -(for the 96 channel version) or just 1 ASIC (for 48-channel version). -Then, use use comedi_commands with TRIG_NOW. -Your callback will be called each time an edge is triggered, and the data -values will be two sample_t's, which should be concatenated to form one -32-bit unsigned int. This value is the mask of channels that had -edges detected from your channel list. Note that the bits positions -in the mask correspond to positions in your chanlist when you specified -the command and *not* channel id's! - -To set the polarity of the edge-detection interrupts pass a nonzero value for -either CR_RANGE or CR_AREF for edge-up polarity, or a zero value for both -CR_RANGE and CR_AREF if you want edge-down polarity. - -In the 48-channel version: - -On subdev 0, the first 24 channels channels are edge-detect channels. - -In the 96-channel board you have the collowing channels that can do edge detection: - -subdev 0, channels 0-24 (first 24 channels of 1st ASIC) -subdev 2, channels 0-24 (first 24 channels of 2nd ASIC) - -Configuration Options: - [0] - I/O port base address - [1] - IRQ (for first ASIC, or first 24 channels) - [2] - IRQ for second ASIC (pcmuio96 only - IRQ for chans 48-72 .. can be the same as first irq!) -*/ + * Driver: pcmuio + * Description: Winsystems PC-104 based 48/96-channel DIO boards. + * Devices: (Winsystems) PCM-UIO48A [pcmuio48] + * (Winsystems) PCM-UIO96A [pcmuio96] + * Author: Calin Culianu <calin@xxxxxxxxx> + * Updated: Fri, 13 Jan 2006 12:01:01 -0500 + * Status: works + * + * A driver for the relatively straightforward-to-program PCM-UIO48A and + * PCM-UIO96A boards from Winsystems. These boards use either one or two + * (in the 96-DIO version) WS16C48 ASIC HighDensity I/O Chips (HDIO). This + * chip is interesting in that each I/O line is individually programmable + * for INPUT or OUTPUT (thus comedi_dio_config can be done on a per-channel + * basis). Also, each chip supports edge-triggered interrupts for the first + * 24 I/O lines. Of course, since the 96-channel version of the board has + * two ASICs, it can detect polarity changes on up to 48 I/O lines. Since + * this is essentially an (non-PnP) ISA board, I/O Address and IRQ selection + * are done through jumpers on the board. You need to pass that information + * to this driver as the first and second comedi_config option, respectively. + * Note that the 48-channel version uses 16 bytes of IO memory and the 96- + * channel version uses 32-bytes (in case you are worried about conflicts). + * The 48-channel board is split into two 24-channel comedi subdevices. The + * 96-channel board is split into 4 24-channel DIO subdevices. + * + * Note that IRQ support has been added, but it is untested. + * + * To use edge-detection IRQ support, pass the IRQs of both ASICS (for the + * 96 channel version) or just 1 ASIC (for 48-channel version). Then, use + * comedi_commands with TRIG_NOW. Your callback will be called each time an + * edge is triggered, and the data values will be two sample_t's, which + * should be concatenated to form one 32-bit unsigned int. This value is + * the mask of channels that had edges detected from your channel list. Note + * that the bits positions in the mask correspond to positions in your + * chanlist when you specified the command and *not* channel id's! + * + * To set the polarity of the edge-detection interrupts pass a nonzero value + * for either CR_RANGE or CR_AREF for edge-up polarity, or a zero value for + * both CR_RANGE and CR_AREF if you want edge-down polarity. + * + * In the 48-channel version: + * + * On subdev 0, the first 24 channels channels are edge-detect channels. + * + * In the 96-channel board you have the following channels that can do edge + * detection: + * + * subdev 0, channels 0-24 (first 24 channels of 1st ASIC) + * subdev 2, channels 0-24 (first 24 channels of 2nd ASIC) + * + * Configuration Options: + * [0] - I/O port base address + * [1] - IRQ (for first ASIC, or first 24 channels) + * [2] - IRQ (for second ASIC, pcmuio96 only - IRQ for chans 48-72 + * can be the same as first irq!) + */ #include <linux/interrupt.h> #include <linux/slab.h> -- 1.8.1.4 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
