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Re: [Linux-fbdev-devel] + viafb-switch-to-seq_file.patch added to -mm tree
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From: Florian T. S. <Flo...@gm...> - 2009-09-05 14:21:11
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ak...@li... schrieb:
> The patch titled
> viafb: switch to seq_file
> has been added to the -mm tree. Its filename is
> viafb-switch-to-seq_file.patch
> ------------------------------------------------------
> Subject: viafb: switch to seq_file
> From: Alexey Dobriyan <ado...@gm...>
>
> Signed-off-by: Alexey Dobriyan <ado...@gm...>
> Cc: Florian Tobias Schandinat <Flo...@gm...>
> Cc: Scott Fang <Sco...@vi...>
> Cc: Joseph Chan <Jos...@vi...>
> Signed-off-by: Andrew Morton <ak...@li...>
Acked-by: Florian Tobias Schandinat <Flo...@gm...>
This patch doesn't change anything viafb specific and as far as I can
say it does all proc and seq_file things right.
Also it does not conflict with or depend on any of my patches.
Thanks,
Florian Tobias Schandinat
> ---
>
> drivers/video/via/viafbdev.c | 179 ++++++++++++++++++++-------------
> 1 file changed, 110 insertions(+), 69 deletions(-)
>
> diff -puN drivers/video/via/viafbdev.c~viafb-switch-to-seq_file drivers/video/via/viafbdev.c
> --- a/drivers/video/via/viafbdev.c~viafb-switch-to-seq_file
> +++ a/drivers/video/via/viafbdev.c
> @@ -20,6 +20,7 @@
> */
>
> #include <linux/module.h>
> +#include <linux/seq_file.h>
> #define _MASTER_FILE
>
> #include "global.h"
> @@ -1479,10 +1480,8 @@ static void parse_dvi_port(void)
> * DVP1Driving, DFPHigh, DFPLow CR96, SR2A[5], SR1B[1], SR2A[4], SR1E[2],
> * CR9B, SR65, CR97, CR99
> */
> -static int viafb_dvp0_proc_read(char *buf, char **start, off_t offset,
> -int count, int *eof, void *data)
> +static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
> {
> - int len = 0;
> u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
> dvp0_data_dri =
> (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
> @@ -1491,13 +1490,17 @@ int count, int *eof, void *data)
> (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
> (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
> dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
> - len +=
> - sprintf(buf + len, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
> - *eof = 1; /*Inform kernel end of data */
> - return len;
> + seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
> + return 0;
> }
> -static int viafb_dvp0_proc_write(struct file *file,
> - const char __user *buffer, unsigned long count, void *data)
> +
> +static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
> +{
> + return single_open(file, viafb_dvp0_proc_show, NULL);
> +}
> +
> +static ssize_t viafb_dvp0_proc_write(struct file *file,
> + const char __user *buffer, size_t count, loff_t *pos)
> {
> char buf[20], *value, *pbuf;
> u8 reg_val = 0;
> @@ -1541,21 +1544,33 @@ static int viafb_dvp0_proc_write(struct
> }
> return count;
> }
> -static int viafb_dvp1_proc_read(char *buf, char **start, off_t offset,
> - int count, int *eof, void *data)
> +
> +static const struct file_operations viafb_dvp0_proc_fops = {
> + .owner = THIS_MODULE,
> + .open = viafb_dvp0_proc_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> + .write = viafb_dvp0_proc_write,
> +};
> +
> +static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
> {
> - int len = 0;
> u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
> dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
> dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
> dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
> - len +=
> - sprintf(buf + len, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
> - *eof = 1; /*Inform kernel end of data */
> - return len;
> + seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
> + return 0;
> +}
> +
> +static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
> +{
> + return single_open(file, viafb_dvp1_proc_show, NULL);
> }
> -static int viafb_dvp1_proc_write(struct file *file,
> - const char __user *buffer, unsigned long count, void *data)
> +
> +static ssize_t viafb_dvp1_proc_write(struct file *file,
> + const char __user *buffer, size_t count, loff_t *pos)
> {
> char buf[20], *value, *pbuf;
> u8 reg_val = 0;
> @@ -1594,18 +1609,30 @@ static int viafb_dvp1_proc_write(struct
> return count;
> }
>
> -static int viafb_dfph_proc_read(char *buf, char **start, off_t offset,
> - int count, int *eof, void *data)
> +static const struct file_operations viafb_dvp1_proc_fops = {
> + .owner = THIS_MODULE,
> + .open = viafb_dvp1_proc_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> + .write = viafb_dvp1_proc_write,
> +};
> +
> +static int viafb_dfph_proc_show(struct seq_file *m, void *v)
> {
> - int len = 0;
> u8 dfp_high = 0;
> dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
> - len += sprintf(buf + len, "%x\n", dfp_high);
> - *eof = 1; /*Inform kernel end of data */
> - return len;
> + seq_printf(m, "%x\n", dfp_high);
> + return 0;
> }
> -static int viafb_dfph_proc_write(struct file *file,
> - const char __user *buffer, unsigned long count, void *data)
> +
> +static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
> +{
> + return single_open(file, viafb_dfph_proc_show, NULL);
> +}
> +
> +static ssize_t viafb_dfph_proc_write(struct file *file,
> + const char __user *buffer, size_t count, loff_t *pos)
> {
> char buf[20];
> u8 reg_val = 0;
> @@ -1620,18 +1647,31 @@ static int viafb_dfph_proc_write(struct
> viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
> return count;
> }
> -static int viafb_dfpl_proc_read(char *buf, char **start, off_t offset,
> - int count, int *eof, void *data)
> +
> +static const struct file_operations viafb_dfph_proc_fops = {
> + .owner = THIS_MODULE,
> + .open = viafb_dfph_proc_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> + .write = viafb_dfph_proc_write,
> +};
> +
> +static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
> {
> - int len = 0;
> u8 dfp_low = 0;
> dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
> - len += sprintf(buf + len, "%x\n", dfp_low);
> - *eof = 1; /*Inform kernel end of data */
> - return len;
> + seq_printf(m, "%x\n", dfp_low);
> + return 0;
> +}
> +
> +static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
> +{
> + return single_open(file, viafb_dfpl_proc_show, NULL);
> }
> -static int viafb_dfpl_proc_write(struct file *file,
> - const char __user *buffer, unsigned long count, void *data)
> +
> +static ssize_t viafb_dfpl_proc_write(struct file *file,
> + const char __user *buffer, size_t count, loff_t *pos)
> {
> char buf[20];
> u8 reg_val = 0;
> @@ -1646,10 +1686,18 @@ static int viafb_dfpl_proc_write(struct
> viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
> return count;
> }
> -static int viafb_vt1636_proc_read(char *buf, char **start,
> - off_t offset, int count, int *eof, void *data)
> +
> +static const struct file_operations viafb_dfpl_proc_fops = {
> + .owner = THIS_MODULE,
> + .open = viafb_dfpl_proc_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> + .write = viafb_dfpl_proc_write,
> +};
> +
> +static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
> {
> - int len = 0;
> u8 vt1636_08 = 0, vt1636_09 = 0;
> switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
> case VT1636_LVDS:
> @@ -1659,7 +1707,7 @@ static int viafb_vt1636_proc_read(char *
> vt1636_09 =
> viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
> &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
> - len += sprintf(buf + len, "%x %x\n", vt1636_08, vt1636_09);
> + seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
> break;
> default:
> break;
> @@ -1672,16 +1720,21 @@ static int viafb_vt1636_proc_read(char *
> vt1636_09 =
> viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
> &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
> - len += sprintf(buf + len, " %x %x\n", vt1636_08, vt1636_09);
> + seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
> break;
> default:
> break;
> }
> - *eof = 1; /*Inform kernel end of data */
> - return len;
> + return 0;
> +}
> +
> +static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
> +{
> + return single_open(file, viafb_vt1636_proc_show, NULL);
> }
> -static int viafb_vt1636_proc_write(struct file *file,
> - const char __user *buffer, unsigned long count, void *data)
> +
> +static ssize_t viafb_vt1636_proc_write(struct file *file,
> + const char __user *buffer, size_t count, loff_t *pos)
> {
> char buf[30], *value, *pbuf;
> struct IODATA reg_val;
> @@ -1770,39 +1823,27 @@ static int viafb_vt1636_proc_write(struc
> return count;
> }
>
> +static const struct file_operations viafb_vt1636_proc_fops = {
> + .owner = THIS_MODULE,
> + .open = viafb_vt1636_proc_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> + .write = viafb_vt1636_proc_write,
> +};
> +
> static void viafb_init_proc(struct proc_dir_entry **viafb_entry)
> {
> - struct proc_dir_entry *entry;
> *viafb_entry = proc_mkdir("viafb", NULL);
> if (viafb_entry) {
> - entry = create_proc_entry("dvp0", 0, *viafb_entry);
> - if (entry) {
> - entry->read_proc = viafb_dvp0_proc_read;
> - entry->write_proc = viafb_dvp0_proc_write;
> - }
> - entry = create_proc_entry("dvp1", 0, *viafb_entry);
> - if (entry) {
> - entry->read_proc = viafb_dvp1_proc_read;
> - entry->write_proc = viafb_dvp1_proc_write;
> - }
> - entry = create_proc_entry("dfph", 0, *viafb_entry);
> - if (entry) {
> - entry->read_proc = viafb_dfph_proc_read;
> - entry->write_proc = viafb_dfph_proc_write;
> - }
> - entry = create_proc_entry("dfpl", 0, *viafb_entry);
> - if (entry) {
> - entry->read_proc = viafb_dfpl_proc_read;
> - entry->write_proc = viafb_dfpl_proc_write;
> - }
> + proc_create("dvp0", 0, *viafb_entry, &viafb_dvp0_proc_fops);
> + proc_create("dvp1", 0, *viafb_entry, &viafb_dvp1_proc_fops);
> + proc_create("dfph", 0, *viafb_entry, &viafb_dfph_proc_fops);
> + proc_create("dfpl", 0, *viafb_entry, &viafb_dfpl_proc_fops);
> if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.
> lvds_chip_name || VT1636_LVDS ==
> viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
> - entry = create_proc_entry("vt1636", 0, *viafb_entry);
> - if (entry) {
> - entry->read_proc = viafb_vt1636_proc_read;
> - entry->write_proc = viafb_vt1636_proc_write;
> - }
> + proc_create("vt1636", 0, *viafb_entry, &viafb_vt1636_proc_fops);
> }
>
> }
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