diff options
Diffstat (limited to 'drivers/media/pci/saa7164/saa7164-core.c')
| -rw-r--r-- | drivers/media/pci/saa7164/saa7164-core.c | 166 |
1 files changed, 105 insertions, 61 deletions
diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c index 9ae04e18e6c6..126d085be9a7 100644 --- a/drivers/media/pci/saa7164/saa7164-core.c +++ b/drivers/media/pci/saa7164/saa7164-core.c @@ -13,12 +13,10 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/interrupt.h> +#include <linux/debugfs.h> #include <linux/delay.h> #include <asm/div64.h> -#ifdef CONFIG_PROC_FS -#include <linux/proc_fs.h> -#endif #include "saa7164.h" MODULE_DESCRIPTION("Driver for NXP SAA7164 based TV cards"); @@ -1045,92 +1043,138 @@ static void saa7164_dev_unregister(struct saa7164_dev *dev) return; } -#ifdef CONFIG_PROC_FS -static int saa7164_proc_show(struct seq_file *m, void *v) +#ifdef CONFIG_DEBUG_FS +static void *saa7164_seq_start(struct seq_file *s, loff_t *pos) { struct saa7164_dev *dev; - struct tmComResBusInfo *b; - struct list_head *list; - int i, c; + loff_t index = *pos; - if (saa7164_devcount == 0) - return 0; + mutex_lock(&devlist); + list_for_each_entry(dev, &saa7164_devlist, devlist) { + if (index-- == 0) { + mutex_unlock(&devlist); + return dev; + } + } + mutex_unlock(&devlist); - list_for_each(list, &saa7164_devlist) { - dev = list_entry(list, struct saa7164_dev, devlist); - seq_printf(m, "%s = %p\n", dev->name, dev); + return NULL; +} - /* Lock the bus from any other access */ - b = &dev->bus; - mutex_lock(&b->lock); +static void *saa7164_seq_next(struct seq_file *s, void *v, loff_t *pos) +{ + struct saa7164_dev *dev = v; + void *ret; - seq_printf(m, " .m_pdwSetWritePos = 0x%x (0x%08x)\n", - b->m_dwSetReadPos, saa7164_readl(b->m_dwSetReadPos)); + mutex_lock(&devlist); + if (list_is_last(&dev->devlist, &saa7164_devlist)) + ret = NULL; + else + ret = list_next_entry(dev, devlist); + mutex_unlock(&devlist); - seq_printf(m, " .m_pdwSetReadPos = 0x%x (0x%08x)\n", - b->m_dwSetWritePos, saa7164_readl(b->m_dwSetWritePos)); + ++*pos; - seq_printf(m, " .m_pdwGetWritePos = 0x%x (0x%08x)\n", - b->m_dwGetReadPos, saa7164_readl(b->m_dwGetReadPos)); + return ret; +} - seq_printf(m, " .m_pdwGetReadPos = 0x%x (0x%08x)\n", - b->m_dwGetWritePos, saa7164_readl(b->m_dwGetWritePos)); - c = 0; - seq_printf(m, "\n Set Ring:\n"); - seq_printf(m, "\n addr 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n"); - for (i = 0; i < b->m_dwSizeSetRing; i++) { - if (c == 0) - seq_printf(m, " %04x:", i); +static void saa7164_seq_stop(struct seq_file *s, void *v) +{ +} - seq_printf(m, " %02x", readb(b->m_pdwSetRing + i)); +static int saa7164_seq_show(struct seq_file *m, void *v) +{ + struct saa7164_dev *dev = v; + struct tmComResBusInfo *b; + int i, c; - if (++c == 16) { - seq_printf(m, "\n"); - c = 0; - } - } + seq_printf(m, "%s = %p\n", dev->name, dev); - c = 0; - seq_printf(m, "\n Get Ring:\n"); - seq_printf(m, "\n addr 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n"); - for (i = 0; i < b->m_dwSizeGetRing; i++) { - if (c == 0) - seq_printf(m, " %04x:", i); + /* Lock the bus from any other access */ + b = &dev->bus; + mutex_lock(&b->lock); - seq_printf(m, " %02x", readb(b->m_pdwGetRing + i)); + seq_printf(m, " .m_pdwSetWritePos = 0x%x (0x%08x)\n", + b->m_dwSetReadPos, saa7164_readl(b->m_dwSetReadPos)); - if (++c == 16) { - seq_printf(m, "\n"); - c = 0; - } + seq_printf(m, " .m_pdwSetReadPos = 0x%x (0x%08x)\n", + b->m_dwSetWritePos, saa7164_readl(b->m_dwSetWritePos)); + + seq_printf(m, " .m_pdwGetWritePos = 0x%x (0x%08x)\n", + b->m_dwGetReadPos, saa7164_readl(b->m_dwGetReadPos)); + + seq_printf(m, " .m_pdwGetReadPos = 0x%x (0x%08x)\n", + b->m_dwGetWritePos, saa7164_readl(b->m_dwGetWritePos)); + c = 0; + seq_puts(m, "\n Set Ring:\n"); + seq_puts(m, "\n addr 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n"); + for (i = 0; i < b->m_dwSizeSetRing; i++) { + if (c == 0) + seq_printf(m, " %04x:", i); + + seq_printf(m, " %02x", readb(b->m_pdwSetRing + i)); + + if (++c == 16) { + seq_puts(m, "\n"); + c = 0; } + } - mutex_unlock(&b->lock); + c = 0; + seq_puts(m, "\n Get Ring:\n"); + seq_puts(m, "\n addr 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n"); + for (i = 0; i < b->m_dwSizeGetRing; i++) { + if (c == 0) + seq_printf(m, " %04x:", i); + seq_printf(m, " %02x", readb(b->m_pdwGetRing + i)); + + if (++c == 16) { + seq_puts(m, "\n"); + c = 0; + } } + mutex_unlock(&b->lock); + return 0; } -static struct proc_dir_entry *saa7164_pe; +static const struct seq_operations saa7164_seq_ops = { + .start = saa7164_seq_start, + .next = saa7164_seq_next, + .stop = saa7164_seq_stop, + .show = saa7164_seq_show, +}; -static int saa7164_proc_create(void) +static int saa7164_open(struct inode *inode, struct file *file) { - saa7164_pe = proc_create_single("saa7164", 0444, NULL, saa7164_proc_show); - if (!saa7164_pe) - return -ENOMEM; + return seq_open(file, &saa7164_seq_ops); +} - return 0; +static const struct file_operations saa7164_operations = { + .owner = THIS_MODULE, + .open = saa7164_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static struct dentry *saa7614_dentry; + +static void __init saa7164_debugfs_create(void) +{ + saa7614_dentry = debugfs_create_file("saa7164", 0444, NULL, NULL, + &saa7164_operations); } -static void saa7164_proc_destroy(void) +static void __exit saa7164_debugfs_remove(void) { - if (saa7164_pe) - remove_proc_entry("saa7164", NULL); + debugfs_remove(saa7614_dentry); } #else -static int saa7164_proc_create(void) { return 0; } -static void saa7164_proc_destroy(void) {} +static void saa7164_debugfs_create(void) { } +static void saa7164_debugfs_remove(void) { } #endif static int saa7164_thread_function(void *data) @@ -1507,7 +1551,7 @@ static int __init saa7164_init(void) if (ret) return ret; - saa7164_proc_create(); + saa7164_debugfs_create(); pr_info("saa7164 driver loaded\n"); @@ -1516,7 +1560,7 @@ static int __init saa7164_init(void) static void __exit saa7164_fini(void) { - saa7164_proc_destroy(); + saa7164_debugfs_remove(); pci_unregister_driver(&saa7164_pci_driver); } |