public/fpgafs
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some smaller updates.

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This commit is contained in:
Benjamin Krill 2011-03-23 21:36:58 +00:00
parent 46b296ff92
commit ee5bc62c1e
3 changed files with 17 additions and 17 deletions
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2
fpgafs.h
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@ -31,7 +31,7 @@ enum {
struct fpga_context {
char *load_buf;
unsigned int lldrv;
int lldrv;
int bla;
};

23
fpgafs_lldrv_dbg.c
View File

@ -29,7 +29,7 @@
static char *mem;
static unsigned int stat;
static int do_cmd(u32 cmd, u32 data)
static int do_cmd(uint32_t cmd, uint32_t data)
{
switch(cmd) {
case BLA:
@ -44,7 +44,7 @@ static int do_cmd(u32 cmd, u32 data)
static int fpgafs_stat_dbg(struct fpga_context *ctx, unsigned char *buf, int len)
{
//struct fpga_context *ctx = file->private_data;
u32 data;
uint32_t data;
data=stat;
if (copy_to_user(buf, &data, sizeof(data)))
@ -55,7 +55,7 @@ static int fpgafs_stat_dbg(struct fpga_context *ctx, unsigned char *buf, int len
static int fpgafs_cmd_dbg(struct fpga_context *ctx, const char __user *buf, int len)
{
u32 data, __user *udata;
uint32_t data, __user *udata;
if (len < 4)
return -EINVAL;
@ -73,8 +73,8 @@ static int fpgafs_cmd_dbg(struct fpga_context *ctx, const char __user *buf, int
static int fpgafs_send_data_dbg(struct fpga_context *ctx, const char __user *buf, int len)
{
u32 cp = 0;
u8 __user *usr;
uint32_t cp = 0;
uint8_t __user *usr;
if (mem == NULL)
return -EBUSY;
@ -88,7 +88,7 @@ static int fpgafs_send_data_dbg(struct fpga_context *ctx, const char __user *buf
return -EFAULT;
while (cp < len) {
usr = (u8*)&buf[cp];
usr = (uint8_t*)&buf[cp];
if (__get_user(mem[cp], usr))
return -EFAULT;
cp++;
@ -122,9 +122,8 @@ static int fpgafs_read_load_dbg(struct fpga_context *ctx, unsigned char *buf, in
static int fpgafs_write_load_dbg(struct fpga_context *ctx, const char __user *buf, int len)
{
u32 cp = 0;
u8 __user *usr;
uint32_t cp = 0;
uint8_t __user *usr;
if (ctx->load_buf != NULL)
return -EBUSY;
@ -134,10 +133,10 @@ static int fpgafs_write_load_dbg(struct fpga_context *ctx, const char __user *bu
if (!access_ok(VERIFY_READ, buf, len))
return -EFAULT;
ctx->load_buf = kmalloc(len,GFP_USER);
ctx->load_buf = kmalloc(len, GFP_USER);
while (cp < len) {
usr = (u8*)&buf[cp];
usr = (uint8_t*)&buf[cp];
if (__get_user(ctx->load_buf[cp], usr))
return -EFAULT;
cp++;
@ -149,7 +148,7 @@ static int fpgafs_write_load_dbg(struct fpga_context *ctx, const char __user *bu
static int fpgafs_init_dbg(void)
{
mem = kmalloc(MEM_SIZE,GFP_USER);
mem = kmalloc(MEM_SIZE, GFP_USER);
return 0;
}

9
llmgmt.c
View File

@ -101,7 +101,7 @@ ssize_t fpgafs_read_lldrv(struct file *file, char __user *buf,
struct fpga_context *fcur = (struct fpga_context*)file->private_data;
size_t l = (len > 5)?5:len;
if (fcur->lldrv > -1) {
if (copy_to_user(buf, lldrv[fcur->lldrv]->name, l))
if (copy_to_user(buf, lldrv[fcur->lldrv]->name, l) < 0)
return -EFAULT;
} else {
return -EBUSY;
@ -130,11 +130,13 @@ ssize_t fpgafs_write_lldrv(struct file *file, const char __user *buf,
for(i=0; i < FPGAFS_MAX_LLDRV; i++)
if (lldrv[i] != NULL) {
for (cp = 0; cp < l; cp++) {
printk("%d: %c %c\n", cp, lldrv[i]->name[cp], tmp[cp]);
if (lldrv[i]->name[cp] != tmp[cp])
break;
}
if (cp == l) {
fcur->lldrv = i;
printk("lldrv = %d\n", i);
return l;
}
}
@ -165,10 +167,9 @@ ssize_t fpgafs_write_cmd(struct file *file, const char __user *buf,
/* low level un-/register functions */
int fpgafs_register_lldrv(struct fpgafs_lldrv *drv)
{
unsigned long flags;
int i;
spin_lock_irqsave(&fpgafs_lldrv_lock, flags);
spin_lock(&fpgafs_lldrv_lock);
if (lldrv_count == FPGAFS_MAX_LLDRV)
return -EBUSY;
@ -186,7 +187,7 @@ int fpgafs_register_lldrv(struct fpgafs_lldrv *drv)
lldrv_count++;
spin_unlock_irqrestore(&fpgafs_lldrv_lock, flags);
spin_unlock(&fpgafs_lldrv_lock);
return 0;
}
EXPORT_SYMBOL_GPL(fpgafs_register_lldrv);