add cmd and stat into lldrv structure
git-svn-id: svn+ssh://en.codiert.org/home/staff/ben/dev/misc.svn/projects/fpgafs@418 766a2236-cff9-0310-b0c0-a81a5f92509a
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0ae8873d37
commit
11248b2a79
50
files.c
50
files.c
@ -9,20 +9,6 @@
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#include <linux/pagemap.h>
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#include <linux/pagemap.h>
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#include "fpgafs.h"
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#include "fpgafs.h"
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static unsigned int stat;
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static int do_cmd(u32 cmd, u32 data)
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{
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switch(cmd) {
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case BLA:
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stat = data;
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break;
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default:
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return -EFAULT;
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}
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return 0;
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}
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/* generic open function for all pipe-like files */
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/* generic open function for all pipe-like files */
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static int fpgafs_open(struct inode *inode, struct file *file)
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static int fpgafs_open(struct inode *inode, struct file *file)
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{
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{
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@ -32,46 +18,14 @@ static int fpgafs_open(struct inode *inode, struct file *file)
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return nonseekable_open(inode, file);
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return nonseekable_open(inode, file);
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}
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}
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static ssize_t fpgafs_stat_read(struct file *file, char __user *buf,
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size_t len, loff_t *pos)
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{
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//struct fpga_context *ctx = file->private_data;
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u32 data;
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data=stat;
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if (copy_to_user(buf, &data, sizeof(data)))
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return -EFAULT;
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return 4;
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}
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static ssize_t fpgafs_cmd_write(struct file *file, const char __user *buf,
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size_t len, loff_t *pos)
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{
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u32 data, __user *udata;
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if (len < 4)
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return -EINVAL;
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udata = (void __user *)buf;
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if (!access_ok(VERIFY_READ, buf, len))
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return -EFAULT;
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if (__get_user(data, udata))
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return -EFAULT;
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do_cmd(BLA,data);
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return 4;
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}
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static const struct file_operations fpgafs_stat_fops = {
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static const struct file_operations fpgafs_stat_fops = {
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.open = fpgafs_open,
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.open = fpgafs_open,
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.read = fpgafs_stat_read,
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.read = fpgafs_read_stat,
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};
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};
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static const struct file_operations fpgafs_cmd_fops = {
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static const struct file_operations fpgafs_cmd_fops = {
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.open = fpgafs_open,
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.open = fpgafs_open,
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.write = fpgafs_cmd_write,
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.write = fpgafs_write_cmd,
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};
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};
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static const struct file_operations fpgafs_load_fops = {
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static const struct file_operations fpgafs_load_fops = {
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8
fpgafs.h
8
fpgafs.h
@ -44,6 +44,9 @@ struct fpgafs_lldrv {
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int (*send) (struct fpga_context *ctx, const char __user *buf, int len);
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int (*send) (struct fpga_context *ctx, const char __user *buf, int len);
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int (*recv) (struct fpga_context *ctx, unsigned char *buf, int len);
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int (*recv) (struct fpga_context *ctx, unsigned char *buf, int len);
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int (*cmd) (struct fpga_context *ctx, const char __user *buf, int len);
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int (*stat) (struct fpga_context *ctx, unsigned char *buf, int len);
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int (*read_load) (struct fpga_context *ctx, unsigned char *buf, int len);
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int (*read_load) (struct fpga_context *ctx, unsigned char *buf, int len);
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int (*write_load) (struct fpga_context *ctx, const char __user *buf, int len);
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int (*write_load) (struct fpga_context *ctx, const char __user *buf, int len);
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};
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};
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@ -66,6 +69,11 @@ ssize_t fpgafs_write_lldrv(struct file *file, const char __user *buf,
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ssize_t fpgafs_read_lldrv(struct file *file, char __user *buf,
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ssize_t fpgafs_read_lldrv(struct file *file, char __user *buf,
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size_t len, loff_t *pos);
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size_t len, loff_t *pos);
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ssize_t fpgafs_read_stat(struct file *file, char __user *buf,
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size_t len, loff_t *pos);
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ssize_t fpgafs_write_cmd(struct file *file, const char __user *buf,
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size_t len, loff_t *pos);
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struct fpga_context* alloc_fpga_context(void);
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struct fpga_context* alloc_fpga_context(void);
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void free_fpga_context(struct fpga_context *ctx);
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void free_fpga_context(struct fpga_context *ctx);
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#endif /* FPGAFS_H */
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#endif /* FPGAFS_H */
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@ -11,6 +11,49 @@
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#define MEM_SIZE 255
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#define MEM_SIZE 255
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/* some test memory */
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/* some test memory */
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static char *mem;
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static char *mem;
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static unsigned int stat;
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static int do_cmd(u32 cmd, u32 data)
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{
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switch(cmd) {
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case BLA:
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stat = data;
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break;
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default:
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return -EFAULT;
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}
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return 0;
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}
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static int fpgafs_stat_dbg(struct fpga_context *ctx, unsigned char *buf, int len)
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{
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//struct fpga_context *ctx = file->private_data;
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u32 data;
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data=stat;
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if (copy_to_user(buf, &data, sizeof(data)))
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return -EFAULT;
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return 4;
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}
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static int fpgafs_cmd_dbg(struct fpga_context *ctx, const char __user *buf, int len)
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{
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u32 data, __user *udata;
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if (len < 4)
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return -EINVAL;
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udata = (void __user *)buf;
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if (!access_ok(VERIFY_READ, buf, len))
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return -EFAULT;
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if (__get_user(data, udata))
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return -EFAULT;
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do_cmd(BLA,data);
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return 4;
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}
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static int fpgafs_send_data_dbg(struct fpga_context *ctx, const char __user *buf, int len)
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static int fpgafs_send_data_dbg(struct fpga_context *ctx, const char __user *buf, int len)
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{
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{
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@ -106,6 +149,8 @@ static struct fpgafs_lldrv fpgafs_lldrv_dbg = {
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.exit = fpgafs_exit_dbg,
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.exit = fpgafs_exit_dbg,
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.send = &fpgafs_send_data_dbg,
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.send = &fpgafs_send_data_dbg,
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.recv = &fpgafs_recv_data_dbg,
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.recv = &fpgafs_recv_data_dbg,
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.stat = &fpgafs_stat_dbg,
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.cmd = &fpgafs_cmd_dbg,
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.read_load = &fpgafs_read_load_dbg,
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.read_load = &fpgafs_read_load_dbg,
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.write_load = &fpgafs_write_load_dbg,
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.write_load = &fpgafs_write_load_dbg,
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};
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};
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18
llmgmt.c
18
llmgmt.c
@ -128,6 +128,24 @@ ssize_t fpgafs_write_lldrv(struct file *file, const char __user *buf,
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}
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}
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//EXPORT_SYMBOL_GPL(fpgafs_write_lldrv);
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//EXPORT_SYMBOL_GPL(fpgafs_write_lldrv);
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ssize_t fpgafs_read_stat(struct file *file, char __user *buf,
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size_t len, loff_t *pos)
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{
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struct fpga_context *fcur = (struct fpga_context*)file->private_data;
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return (fcur->lldrv > -1) ?
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lldrv[fcur->lldrv]->stat(fcur, buf, len)
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: -EBUSY;
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}
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ssize_t fpgafs_write_cmd(struct file *file, const char __user *buf,
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size_t len, loff_t *pos)
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{
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struct fpga_context *fcur = (struct fpga_context*)file->private_data;
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return (fcur->lldrv > -1) ?
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lldrv[fcur->lldrv]->cmd(fcur, buf, len)
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: -EBUSY;
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}
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/* low level un-/register functions */
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/* low level un-/register functions */
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int fpgafs_register_lldrv(struct fpgafs_lldrv *drv)
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int fpgafs_register_lldrv(struct fpgafs_lldrv *drv)
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{
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{
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