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#define __KERNEL__
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#define MODULE
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/pci.h>
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#include <linux/wrapper.h>
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#include <asm/uaccess.h>
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#include <asm/uaccess.h>
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#include <spartan_kint.h> //IOCTL definitions
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#include <spartan_kint.h> //IOCTL definitions
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// define vendor and device ID here - currently this definitions specify reference designs from insight electronic
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// define vendor and device ID here - currently this definitions specify reference designs from insight electronic
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#endif
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#endif
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#ifdef __VGA__
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#ifdef __VGA__
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#define OC_PCI_VENDOR 0x1895
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#define OC_PCI_VENDOR 0x1895
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#define OC_PCI_DEVICE 0x0001
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#define OC_PCI_DEVICE 0x0001
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#endif
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#endif
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#ifdef __OC_TEST__
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#define OC_PCI_VENDOR 0x1895
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#define OC_PCI_DEVICE 0x0001
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#define __VGA__
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#endif
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// if someone wants specific major number assigned to spartan board - specify it here
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// if someone wants specific major number assigned to spartan board - specify it here
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// if 0 is used, kernel assigns it automaticaly
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// if 0 is used, kernel assigns it automaticaly
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#ifdef __SDRAM__
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#ifdef __SDRAM__
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#define REQUESTED_MAJOR 243
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#define REQUESTED_MAJOR 0
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#endif
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#endif
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#ifdef __VGA__
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#ifdef __VGA__
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#define REQUESTED_MAJOR 244
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#define REQUESTED_MAJOR 0
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#endif
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#endif
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// if compiling module for kernel 2.4 - leave this defined
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// if compiling module for kernel 2.4 - leave this defined
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// for kernel 2.2 - comment this out
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// for kernel 2.2 - comment this out
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#define KERNEL_VER_24
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#define KERNEL_VER_24
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// memory mapped or IO mapped region definitions
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// memory mapped or IO mapped region definitions
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#define SPARTAN_MEM_MAPPED 0
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#define SPARTAN_MEM_MAPPED 0
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#define SPARTAN_IO_MAPPED 1
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#define SPARTAN_IO_MAPPED 1
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#ifdef __VGA__
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#ifdef __VGA__
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#ifdef __OC_TEST__
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#define VIDEO_SZ (16384)
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#else
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#define VIDEO_SZ (640*480)
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#define VIDEO_SZ (640*480)
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#endif
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#endif
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#endif
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// structure for holding board information
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// structure for holding board information
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// (6 base addresses, mapping, page etc.
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// (6 base addresses, mapping, page etc.
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static struct our_dev
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static struct our_dev
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{
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{
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for(i = 0; i < VIDEO_SZ; i++) {
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for(i = 0; i < VIDEO_SZ; i++) {
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get_user(*((char *)(pspartan_dev.video_vbase + i)), ((char *)(arg + i)));
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get_user(*((char *)(pspartan_dev.video_vbase + i)), ((char *)(arg + i)));
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}
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}
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return 0;
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return 0;
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case SPARTAN_IOC_GET_VIDEO_BUFF:
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for(i = 0; i < VIDEO_SZ; i++) {
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put_user(*((char *)(pspartan_dev.video_vbase + i)), ((char *)(arg + i))) ;
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}
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return 0 ;
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#endif
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#endif
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default:
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default:
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return -EINVAL ;
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return -EINVAL ;
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}
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}
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}
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}
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unsigned long current_address = pspartan_dev.page_addr + pspartan_dev.base_page_offset + pspartan_dev.offset ;
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unsigned long current_address = pspartan_dev.page_addr + pspartan_dev.base_page_offset + pspartan_dev.offset ;
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unsigned long actual_count ;
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unsigned long actual_count ;
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unsigned long offset = pspartan_dev.offset ;
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unsigned long offset = pspartan_dev.offset ;
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int resource_num = pspartan_dev.current_resource ;
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int resource_num = pspartan_dev.current_resource ;
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int i;
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int i;
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int value;
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unsigned int value;
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unsigned int *kern_buf ;
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unsigned int *kern_buf_tmp ;
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unsigned long size = pspartan_dev.base_size[resource_num] ;
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unsigned long size = pspartan_dev.base_size[resource_num] ;
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int result ;
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int result ;
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if (pspartan_dev.current_resource < 0)
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if (pspartan_dev.current_resource < 0)
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// verify range if it is OK to copy from
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// verify range if it is OK to copy from
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if ((result = verify_area(VERIFY_WRITE, buf, actual_count)))
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if ((result = verify_area(VERIFY_WRITE, buf, actual_count)))
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return result ;
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return result ;
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kern_buf = kmalloc(actual_count, GFP_KERNEL | GFP_DMA) ;
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kern_buf_tmp = kern_buf ;
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if (kern_buf <= 0)
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return 0 ;
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memcpy_fromio(kern_buf, current_address, actual_count) ;
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i = actual_count/4;
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i = actual_count/4;
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while(i--) {
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while(i--) {
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value = readl(current_address);
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// value = readl(current_address);
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put_user(value, ((int *)buf));
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value = *(kern_buf) ;
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put_user(value, ((unsigned int *)buf));
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buf += 4;
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buf += 4;
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current_address += 4;
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++kern_buf ;
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// current_address += 4;
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}
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}
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kfree(kern_buf_tmp);
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pspartan_dev.offset = pspartan_dev.offset + actual_count ;
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pspartan_dev.offset = pspartan_dev.offset + actual_count ;
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*(offset_out) = pspartan_dev.offset ;
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*(offset_out) = pspartan_dev.offset ;
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return actual_count ;
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return actual_count ;
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int resource_num = pspartan_dev.current_resource ;
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int resource_num = pspartan_dev.current_resource ;
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int i;
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int i;
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int value;
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int value;
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unsigned long size = pspartan_dev.base_size[resource_num] ;
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unsigned long size = pspartan_dev.base_size[resource_num] ;
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int result ;
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int result ;
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int *kern_buf ;
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int *kern_buf_tmp ;
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if (pspartan_dev.current_resource < 0)
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if (pspartan_dev.current_resource < 0)
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return -ENODEV ;
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return -ENODEV ;
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if (offset == size)
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if (offset == size)
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// verify range if it is OK to copy from
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// verify range if it is OK to copy from
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if ((result = verify_area(VERIFY_READ, buf, actual_count)))
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if ((result = verify_area(VERIFY_READ, buf, actual_count)))
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return result ;
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return result ;
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kern_buf = kmalloc(actual_count, GFP_KERNEL | GFP_DMA) ;
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kern_buf_tmp = kern_buf ;
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if (kern_buf <= 0)
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return 0 ;
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i = actual_count/4;
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i = actual_count/4;
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while(i--) {
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while(i--) {
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get_user(value, ((int *)buf));
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get_user(value, ((int *)buf));
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writel(value, current_address);
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//writel(value, current_address);
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*kern_buf = value ;
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buf += 4;
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buf += 4;
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current_address += 4;
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//current_address += 4;
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++kern_buf ;
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}
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}
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memcpy_toio(current_address, kern_buf_tmp, actual_count) ;
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kfree(kern_buf_tmp) ;
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pspartan_dev.offset = pspartan_dev.offset + actual_count ;
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pspartan_dev.offset = pspartan_dev.offset + actual_count ;
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*(offset_out) = pspartan_dev.offset ;
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*(offset_out) = pspartan_dev.offset ;
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return actual_count ;
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return actual_count ;
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printk("<1> spartan device with major number %d unregistered succesfully \n", pspartan_dev.major);
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printk("<1> spartan device with major number %d unregistered succesfully \n", pspartan_dev.major);
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return ;
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return ;
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}
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}
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}
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}
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No newline at end of file
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No newline at end of file
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MODULE_LICENSE("GPL") ;
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No newline at end of file
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No newline at end of file
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