On 12/05/2007 11:50 AM, bruno randolf wrote:
[...]
> +static int open_file_registers(struct inode *inode, struct file *file)
> +{
> + struct seq_file *s;
> + int res;
> + res = seq_open(file, ®ister_seq_ops);
> + s = (struct seq_file *)file->private_data;
you don't need to cast here (from void *).
> + s->private = inode->i_private;
> + return res;
> +}
> +
> +static const struct file_operations fops_registers = {
BTW. to prevent removing the module while having opened this debug stuff, you
should add:
.owner = THIS_MODULE,
> + .open = open_file_registers,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = seq_release
> +};
> +
> +
> +/* debugfs: TSF */
> +
> +static ssize_t read_file_tsf(struct file *file, char __user *user_buf,
> + size_t count, loff_t *ppos)
> +{
> + struct ath5k_softc *sc = file->private_data;
> + char buf[100];
> + snprintf(buf, 100, "0x%016llx\n", ath5k_hw_get_tsf64(sc->ah));
> + return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
> +}
> +
> +static ssize_t write_file_tsf(struct file *file,
> + const char __user *userbuf,
> + size_t count, loff_t *ppos)
> +{
> + struct ath5k_softc *sc = file->private_data;
> + if (strncmp(userbuf, "reset", 5) == 0) {
> + ath5k_hw_reset_tsf(sc->ah);
> + printk(KERN_INFO "debugfs reset TSF\n");
> + }
> + return count;
> +}
> +
> +static const struct file_operations fops_tsf = {
and here
> + .read = read_file_tsf,
> + .write = write_file_tsf,
> + .open = ath5k_debugfs_open,
> +};
> +
> +
> +/* debugfs: beacons */
> +
> +static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
> + size_t count, loff_t *ppos)
> +{
> + struct ath5k_softc *sc = file->private_data;
> + struct ath5k_hw *ah = sc->ah;
> +
> + char buf[1000];
> + int len = 0;
> + REG_PRINT_APPEND(AR5K_BEACON);
> + len += snprintf(buf+len, 1000-len, "\tbeacon period:\t%d\n",
> + ath5k_hw_reg_read(ah, AR5K_BEACON) & AR5K_BEACON_PERIOD);
> + len += snprintf(buf+len, 1000-len, "\tbeacon tim:\t%x\n",
> + (ath5k_hw_reg_read(ah, AR5K_BEACON) & AR5K_BEACON_TIM)
> + >> AR5K_BEACON_TIM_S);
> + len += snprintf(buf+len, 1000-len, "\tbeacons enabled: %s\n",
> + ath5k_hw_reg_read(ah, AR5K_BEACON) & AR5K_BEACON_ENABLE ?
> + "YES" : "NO");
> + REG_PRINT_APPEND(AR5K_TIMER0);
> + REG_PRINT_APPEND(AR5K_TIMER1);
> + REG_PRINT_APPEND(AR5K_TIMER2);
> + REG_PRINT_APPEND(AR5K_TIMER3);
> + REG_PRINT_APPEND(AR5K_LAST_TSTP);
> + REG_PRINT_APPEND(AR5K_BEACON_CNT);
> +
> + return simple_read_from_buffer(user_buf, count, ppos, buf, len);
> +}
> +
> +static ssize_t write_file_beacon(struct file *file,
> + const char __user *userbuf,
> + size_t count, loff_t *ppos)
> +{
> + struct ath5k_softc *sc = file->private_data;
> + struct ath5k_hw *ah = sc->ah;
> +
> + if (strncmp(userbuf, "disable", 7) == 0) {
> + AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
> + printk(KERN_INFO "debugfs disable beacons\n");
> + } else if (strncmp(userbuf, "enable", 6) == 0) {
> + AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
> + printk(KERN_INFO "debugfs enable beacons\n");
> + }
> + return count;
> +}
> +
> +static const struct file_operations fops_beacon = {
and here.
> + .read = read_file_beacon,
> + .write = write_file_beacon,
> + .open = ath5k_debugfs_open,
> +};
> +
> +
> +/* debugfs: reset */
> +
> +static ssize_t write_file_reset(struct file *file,
> + const char __user *userbuf,
> + size_t count, loff_t *ppos)
> +{
> + struct ath5k_softc *sc = file->private_data;
> + tasklet_schedule(&sc->restq);
> + return count;
> +}
> +
> +static const struct file_operations fops_reset = {
and here :)
> + .write = write_file_reset,
> + .open = ath5k_debugfs_open,
> +};
thanks,
--
Jiri Slaby (jirislaby@xxxxxxxxx)
Faculty of Informatics, Masaryk University
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