Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 374 insertions, 0 deletions

diff --git a/drivers/cdrom/isp16.c b/drivers/cdrom/isp16.c
new file mode 100644
index 0000000..8e68d85
--- /dev/null
+++ b/drivers/cdrom/isp16.c
@@ -0,0 +1,374 @@
+/* -- ISP16 cdrom detection and configuration
+ *
+ *    Copyright (c) 1995,1996 Eric van der Maarel <H.T.M.v.d.Maarel@marin.nl>
+ *
+ *    Version 0.6
+ *
+ *    History:
+ *    0.5 First release.
+ *        Was included in the sjcd and optcd cdrom drivers.
+ *    0.6 First "stand-alone" version.
+ *        Removed sound configuration.
+ *        Added "module" support.
+ *
+ *      9 November 1999 -- Make kernel-parameter implementation work with 2.3.x 
+ *	                   Removed init_module & cleanup_module in favor of 
+ *			   module_init & module_exit.
+ *			   Torben Mathiasen <tmm@image.dk>
+ *
+ *     19 June 2004     -- check_region() converted to request_region()
+ *                         and return statement cleanups.
+ *                         Jesper Juhl <juhl-lkml@dif.dk>
+ *
+ *    Detect cdrom interface on ISP16 sound card.
+ *    Configure cdrom interface.
+ *
+ *    Algorithm for the card with OPTi 82C928 taken
+ *    from the CDSETUP.SYS driver for MSDOS,
+ *    by OPTi Computers, version 2.03.
+ *    Algorithm for the card with OPTi 82C929 as communicated
+ *    to me by Vadim Model and Leo Spiekman.
+ *
+ *    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.
+ *
+ */
+
+#define ISP16_VERSION_MAJOR 0
+#define ISP16_VERSION_MINOR 6
+
+#include <linux/module.h>
+
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include "isp16.h"
+
+static short isp16_detect(void);
+static short isp16_c928__detect(void);
+static short isp16_c929__detect(void);
+static short isp16_cdi_config(int base, u_char drive_type, int irq,
+			      int dma);
+static short isp16_type;	/* dependent on type of interface card */
+static u_char isp16_ctrl;
+static u_short isp16_enable_port;
+
+static int isp16_cdrom_base = ISP16_CDROM_IO_BASE;
+static int isp16_cdrom_irq = ISP16_CDROM_IRQ;
+static int isp16_cdrom_dma = ISP16_CDROM_DMA;
+static char *isp16_cdrom_type = ISP16_CDROM_TYPE;
+
+module_param(isp16_cdrom_base, int, 0);
+module_param(isp16_cdrom_irq, int, 0);
+module_param(isp16_cdrom_dma, int, 0);
+module_param(isp16_cdrom_type, charp, 0);
+
+#define ISP16_IN(p) (outb(isp16_ctrl,ISP16_CTRL_PORT), inb(p))
+#define ISP16_OUT(p,b) (outb(isp16_ctrl,ISP16_CTRL_PORT), outb(b,p))
+
+#ifndef MODULE
+
+static int
+__init isp16_setup(char *str)
+{
+	int ints[4];
+
+	(void) get_options(str, ARRAY_SIZE(ints), ints);
+	if (ints[0] > 0)
+		isp16_cdrom_base = ints[1];
+	if (ints[0] > 1)
+		isp16_cdrom_irq = ints[2];
+	if (ints[0] > 2)
+		isp16_cdrom_dma = ints[3];
+	if (str)
+		isp16_cdrom_type = str;
+
+	return 1;
+}
+
+__setup("isp16=", isp16_setup);
+
+#endif				/* MODULE */
+
+/*
+ *  ISP16 initialisation.
+ *
+ */
+static int __init isp16_init(void)
+{
+	u_char expected_drive;
+
+	printk(KERN_INFO
+	       "ISP16: configuration cdrom interface, version %d.%d.\n",
+	       ISP16_VERSION_MAJOR, ISP16_VERSION_MINOR);
+
+	if (!strcmp(isp16_cdrom_type, "noisp16")) {
+		printk("ISP16: no cdrom interface configured.\n");
+		return 0;
+	}
+
+	if (!request_region(ISP16_IO_BASE, ISP16_IO_SIZE, "isp16")) {
+		printk("ISP16: i/o ports already in use.\n");
+		goto out;
+	}
+
+	if ((isp16_type = isp16_detect()) < 0) {
+		printk("ISP16: no cdrom interface found.\n");
+		goto cleanup_out;
+	}
+
+	printk(KERN_INFO
+	       "ISP16: cdrom interface (with OPTi 82C92%d chip) detected.\n",
+	       (isp16_type == 2) ? 9 : 8);
+
+	if (!strcmp(isp16_cdrom_type, "Sanyo"))
+		expected_drive =
+		    (isp16_type ? ISP16_SANYO1 : ISP16_SANYO0);
+	else if (!strcmp(isp16_cdrom_type, "Sony"))
+		expected_drive = ISP16_SONY;
+	else if (!strcmp(isp16_cdrom_type, "Panasonic"))
+		expected_drive =
+		    (isp16_type ? ISP16_PANASONIC1 : ISP16_PANASONIC0);
+	else if (!strcmp(isp16_cdrom_type, "Mitsumi"))
+		expected_drive = ISP16_MITSUMI;
+	else {
+		printk("ISP16: %s not supported by cdrom interface.\n",
+		       isp16_cdrom_type);
+		goto cleanup_out;
+	}
+
+	if (isp16_cdi_config(isp16_cdrom_base, expected_drive,
+			     isp16_cdrom_irq, isp16_cdrom_dma) < 0) {
+		printk
+		    ("ISP16: cdrom interface has not been properly configured.\n");
+		goto cleanup_out;
+	}
+	printk(KERN_INFO
+	       "ISP16: cdrom interface set up with io base 0x%03X, irq %d, dma %d,"
+	       " type %s.\n", isp16_cdrom_base, isp16_cdrom_irq,
+	       isp16_cdrom_dma, isp16_cdrom_type);
+	return 0;
+
+cleanup_out:
+	release_region(ISP16_IO_BASE, ISP16_IO_SIZE);
+out:
+	return -EIO;
+}
+
+static short __init isp16_detect(void)
+{
+
+	if (isp16_c929__detect() >= 0)
+		return 2;
+	else
+		return (isp16_c928__detect());
+}
+
+static short __init isp16_c928__detect(void)
+{
+	u_char ctrl;
+	u_char enable_cdrom;
+	u_char io;
+	short i = -1;
+
+	isp16_ctrl = ISP16_C928__CTRL;
+	isp16_enable_port = ISP16_C928__ENABLE_PORT;
+
+	/* read' and write' are a special read and write, respectively */
+
+	/* read' ISP16_CTRL_PORT, clear last two bits and write' back the result */
+	ctrl = ISP16_IN(ISP16_CTRL_PORT) & 0xFC;
+	ISP16_OUT(ISP16_CTRL_PORT, ctrl);
+
+	/* read' 3,4 and 5-bit from the cdrom enable port */
+	enable_cdrom = ISP16_IN(ISP16_C928__ENABLE_PORT) & 0x38;
+
+	if (!(enable_cdrom & 0x20)) {	/* 5-bit not set */
+		/* read' last 2 bits of ISP16_IO_SET_PORT */
+		io = ISP16_IN(ISP16_IO_SET_PORT) & 0x03;
+		if (((io & 0x01) << 1) == (io & 0x02)) {	/* bits are the same */
+			if (io == 0) {	/* ...the same and 0 */
+				i = 0;
+				enable_cdrom |= 0x20;
+			} else {	/* ...the same and 1 *//* my card, first time 'round */
+				i = 1;
+				enable_cdrom |= 0x28;
+			}
+			ISP16_OUT(ISP16_C928__ENABLE_PORT, enable_cdrom);
+		} else {	/* bits are not the same */
+			ISP16_OUT(ISP16_CTRL_PORT, ctrl);
+			return i;	/* -> not detected: possibly incorrect conclusion */
+		}
+	} else if (enable_cdrom == 0x20)
+		i = 0;
+	else if (enable_cdrom == 0x28)	/* my card, already initialised */
+		i = 1;
+
+	ISP16_OUT(ISP16_CTRL_PORT, ctrl);
+
+	return i;
+}
+
+static short __init isp16_c929__detect(void)
+{
+	u_char ctrl;
+	u_char tmp;
+
+	isp16_ctrl = ISP16_C929__CTRL;
+	isp16_enable_port = ISP16_C929__ENABLE_PORT;
+
+	/* read' and write' are a special read and write, respectively */
+
+	/* read' ISP16_CTRL_PORT and save */
+	ctrl = ISP16_IN(ISP16_CTRL_PORT);
+
+	/* write' zero to the ctrl port and get response */
+	ISP16_OUT(ISP16_CTRL_PORT, 0);
+	tmp = ISP16_IN(ISP16_CTRL_PORT);
+
+	if (tmp != 2)		/* isp16 with 82C929 not detected */
+		return -1;
+
+	/* restore ctrl port value */
+	ISP16_OUT(ISP16_CTRL_PORT, ctrl);
+
+	return 2;
+}
+
+static short __init
+isp16_cdi_config(int base, u_char drive_type, int irq, int dma)
+{
+	u_char base_code;
+	u_char irq_code;
+	u_char dma_code;
+	u_char i;
+
+	if ((drive_type == ISP16_MITSUMI) && (dma != 0))
+		printk("ISP16: Mitsumi cdrom drive has no dma support.\n");
+
+	switch (base) {
+	case 0x340:
+		base_code = ISP16_BASE_340;
+		break;
+	case 0x330:
+		base_code = ISP16_BASE_330;
+		break;
+	case 0x360:
+		base_code = ISP16_BASE_360;
+		break;
+	case 0x320:
+		base_code = ISP16_BASE_320;
+		break;
+	default:
+		printk
+		    ("ISP16: base address 0x%03X not supported by cdrom interface.\n",
+		     base);
+		return -1;
+	}
+	switch (irq) {
+	case 0:
+		irq_code = ISP16_IRQ_X;
+		break;		/* disable irq */
+	case 5:
+		irq_code = ISP16_IRQ_5;
+		printk("ISP16: irq 5 shouldn't be used by cdrom interface,"
+		       " due to possible conflicts with the sound card.\n");
+		break;
+	case 7:
+		irq_code = ISP16_IRQ_7;
+		printk("ISP16: irq 7 shouldn't be used by cdrom interface,"
+		       " due to possible conflicts with the sound card.\n");
+		break;
+	case 3:
+		irq_code = ISP16_IRQ_3;
+		break;
+	case 9:
+		irq_code = ISP16_IRQ_9;
+		break;
+	case 10:
+		irq_code = ISP16_IRQ_10;
+		break;
+	case 11:
+		irq_code = ISP16_IRQ_11;
+		break;
+	default:
+		printk("ISP16: irq %d not supported by cdrom interface.\n",
+		       irq);
+		return -1;
+	}
+	switch (dma) {
+	case 0:
+		dma_code = ISP16_DMA_X;
+		break;		/* disable dma */
+	case 1:
+		printk("ISP16: dma 1 cannot be used by cdrom interface,"
+		       " due to conflict with the sound card.\n");
+		return -1;
+		break;
+	case 3:
+		dma_code = ISP16_DMA_3;
+		break;
+	case 5:
+		dma_code = ISP16_DMA_5;
+		break;
+	case 6:
+		dma_code = ISP16_DMA_6;
+		break;
+	case 7:
+		dma_code = ISP16_DMA_7;
+		break;
+	default:
+		printk("ISP16: dma %d not supported by cdrom interface.\n",
+		       dma);
+		return -1;
+	}
+
+	if (drive_type != ISP16_SONY && drive_type != ISP16_PANASONIC0 &&
+	    drive_type != ISP16_PANASONIC1 && drive_type != ISP16_SANYO0 &&
+	    drive_type != ISP16_SANYO1 && drive_type != ISP16_MITSUMI &&
+	    drive_type != ISP16_DRIVE_X) {
+		printk
+		    ("ISP16: drive type (code 0x%02X) not supported by cdrom"
+		     " interface.\n", drive_type);
+		return -1;
+	}
+
+	/* set type of interface */
+	i = ISP16_IN(ISP16_DRIVE_SET_PORT) & ISP16_DRIVE_SET_MASK;	/* clear some bits */
+	ISP16_OUT(ISP16_DRIVE_SET_PORT, i | drive_type);
+
+	/* enable cdrom on interface with 82C929 chip */
+	if (isp16_type > 1)
+		ISP16_OUT(isp16_enable_port, ISP16_ENABLE_CDROM);
+
+	/* set base address, irq and dma */
+	i = ISP16_IN(ISP16_IO_SET_PORT) & ISP16_IO_SET_MASK;	/* keep some bits */
+	ISP16_OUT(ISP16_IO_SET_PORT, i | base_code | irq_code | dma_code);
+
+	return 0;
+}
+
+static void __exit isp16_exit(void)
+{
+	release_region(ISP16_IO_BASE, ISP16_IO_SIZE);
+	printk(KERN_INFO "ISP16: module released.\n");
+}
+
+module_init(isp16_init);
+module_exit(isp16_exit);
+
+MODULE_LICENSE("GPL");