patch-2.4.18 linux/drivers/sound/cs4281/cs4281_wrapper.h

• Lines: 55
• Date: Wed Jan 16 21:05:19 2002
• Orig file: linux.orig/drivers/sound/cs4281/cs4281_wrapper.h
• Orig date: Thu Jan 1 00:00:00 1970

diff -Naur -X /home/marcelo/lib/dontdiff linux.orig/drivers/sound/cs4281/cs4281_wrapper.h linux/drivers/sound/cs4281/cs4281_wrapper.h
@@ -0,0 +1,54 @@
+/*******************************************************************************
+*
+*      "cs4281_wrapper.h" --  Cirrus Logic-Crystal CS4281 linux audio driver.
+*
+*      Copyright (C) 2000,2001  Cirrus Logic Corp.  
+*            -- tom woller (twoller@crystal.cirrus.com) or
+*               (audio@crystal.cirrus.com).
+*
+*      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.
+*
+* 12/22/00 trw - new file. 
+* 04/18/01 trw - rework entire wrapper logic.
+*
+*******************************************************************************/
+#ifndef __CS4281_WRAPPER_H
+#define __CS4281_WRAPPER_H
+
+/* 2.4.x wrapper */
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,12)
+static int cs4281_null_suspend(struct pci_dev *pcidev, u32 unused) { return 0; }
+static int cs4281_null_resume(struct pci_dev *pcidev) { return 0; }
+#else
+#define no_llseek cs4281_llseek
+static loff_t cs4281_llseek(struct file *file, loff_t offset, int origin)
+{
+	return -ESPIPE;
+}
+void cs4281_null_suspend(struct pci_dev *pcidev) { return; }
+void cs4281_null_resume(struct pci_dev *pcidev) { return; }
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3)
+/* Some versions of 2.4.2 resolve pci_set_dma_mask and some do not... 
+*  but 2.4.0 definitely does not 
+*/
+#define pci_set_dma_mask(dev,data) 0;
+#else
+#endif
+#define cs4x_mem_map_reserve(page) mem_map_reserve(page)
+#define cs4x_mem_map_unreserve(page) mem_map_unreserve(page)
+
+#endif /* #ifndef __CS4281_WRAPPER_H */