diff options
author | Steven Toth <stoth@kernellabs.com> | 2010-07-31 16:17:51 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-10-21 07:55:12 -0200 |
commit | 0b62ceb03545099f0ab43a787cef5307b34b2fe4 (patch) | |
tree | b63d010d27d9bb9506c70a87f32267ec5aaa2d57 /drivers/media/video | |
parent | 6d152c200e8630dcebcac094d4beff37c1288281 (diff) |
[media] saa7164: collect/show the firmware debugging via a thread
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video')
-rw-r--r-- | drivers/media/video/saa7164/saa7164-api.c | 5 | ||||
-rw-r--r-- | drivers/media/video/saa7164/saa7164-core.c | 88 | ||||
-rw-r--r-- | drivers/media/video/saa7164/saa7164.h | 10 |
3 files changed, 92 insertions, 11 deletions
diff --git a/drivers/media/video/saa7164/saa7164-api.c b/drivers/media/video/saa7164/saa7164-api.c index 01cf4ab13b0..cf8337dd7bd 100644 --- a/drivers/media/video/saa7164/saa7164-api.c +++ b/drivers/media/video/saa7164/saa7164-api.c @@ -24,7 +24,7 @@ #include "saa7164.h" -int saa7164_api_collect_debug(struct saa7164_dev *dev, struct seq_file *m) +int saa7164_api_collect_debug(struct saa7164_dev *dev) { tmComResDebugGetData_t d; u8 more = 255; @@ -45,8 +45,7 @@ int saa7164_api_collect_debug(struct saa7164_dev *dev, struct seq_file *m) if (d.dwResult != SAA_OK) break; - seq_printf(m, "%s", d.ucDebugData); - + printk(KERN_INFO "saa7164[%d]-FWMSG: %s", dev->nr, d.ucDebugData); } return 0; diff --git a/drivers/media/video/saa7164/saa7164-core.c b/drivers/media/video/saa7164/saa7164-core.c index 9f97785447f..db4b39cb72a 100644 --- a/drivers/media/video/saa7164/saa7164-core.c +++ b/drivers/media/video/saa7164/saa7164-core.c @@ -1112,15 +1112,51 @@ static int saa7164_proc_show(struct seq_file *m, void *v) dev = list_entry(list, struct saa7164_dev, devlist); seq_printf(m, "%s = %p\n", dev->name, dev); - if (dev->board != SAA7164_BOARD_UNKNOWN) { - seq_printf(m, "Firmware messages ----->\n"); - saa7164_api_collect_debug(dev, m); - seq_printf(m, "<---- Firmware messages\n"); - } - /* Lock the bus from any other access */ b = &dev->bus; mutex_lock(&b->lock); + + seq_printf(m, " .m_pdwSetWritePos = 0x%x (0x%08x)\n", + b->m_dwSetReadPos, saa7164_readl(b->m_dwSetReadPos)); + + 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_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); + + seq_printf(m, " %02x", *(b->m_pdwSetRing + i)); + + if (++c == 16) { + seq_printf(m, "\n"); + c = 0; + } + } + + 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); + + seq_printf(m, " %02x", *(b->m_pdwGetRing + i)); + + if (++c == 16) { + seq_printf(m, "\n"); + c = 0; + } + } + mutex_unlock(&b->lock); } @@ -1152,6 +1188,31 @@ static int saa7164_proc_create(void) } #endif +static int saa7164_thread_function(void *data) +{ + struct saa7164_dev *dev = data; + + dprintk(DBGLVL_THR, "thread started\n"); + + set_freezable(); + + while (1) { + msleep_interruptible(100); + if (kthread_should_stop()) + break; + try_to_freeze(); + + dprintk(DBGLVL_THR, "thread running\n"); + + /* Dump the firmware debug message to console */ + saa7164_api_collect_debug(dev); + + } + + dprintk(DBGLVL_THR, "thread exiting\n"); + return 0; +} + static int __devinit saa7164_initdev(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { @@ -1313,6 +1374,14 @@ static int __devinit saa7164_initdev(struct pci_dev *pci_dev, } saa7164_api_set_debug(dev, fw_debug); + if (fw_debug) { + dev->kthread = kthread_run(saa7164_thread_function, dev, + "saa7164 debug"); + if (!dev->kthread) + printk(KERN_ERR "%s() Failed to create " + "debug kernel thread\n", __func__); + } + } /* != BOARD_UNKNOWN */ else printk(KERN_ERR "%s() Unsupported board detected, " @@ -1340,8 +1409,13 @@ static void __devexit saa7164_finidev(struct pci_dev *pci_dev) { struct saa7164_dev *dev = pci_get_drvdata(pci_dev); - if (dev->board != SAA7164_BOARD_UNKNOWN) + if (dev->board != SAA7164_BOARD_UNKNOWN) { + if (fw_debug && dev->kthread) { + kthread_stop(dev->kthread); + dev->kthread = NULL; + } saa7164_api_set_debug(dev, 0x00); + } saa7164_histogram_print(&dev->ports[ SAA7164_PORT_ENC1 ], &dev->ports[ SAA7164_PORT_ENC1 ].irq_interval); diff --git a/drivers/media/video/saa7164/saa7164.h b/drivers/media/video/saa7164/saa7164.h index e2de805c30c..88b9b91bf4f 100644 --- a/drivers/media/video/saa7164/saa7164.h +++ b/drivers/media/video/saa7164/saa7164.h @@ -51,6 +51,8 @@ #include <linux/version.h> #include <linux/mutex.h> #include <linux/crc32.h> +#include <linux/kthread.h> +#include <linux/freezer.h> #include <media/tuner.h> #include <media/tveeprom.h> @@ -109,6 +111,7 @@ #define DBGLVL_BUF 512 #define DBGLVL_ENC 1024 #define DBGLVL_VBI 2048 +#define DBGLVL_THR 4096 #define SAA7164_NORMS ( V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_443 ) @@ -471,6 +474,11 @@ struct saa7164_dev { /* Deferred command/api interrupts handling */ struct work_struct workcmd; + /* A kernel thread to monitor the firmware log, used + * only in debug mode. + */ + struct task_struct *kthread; + }; extern struct list_head saa7164_devlist; @@ -542,7 +550,7 @@ int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect); int saa7164_api_get_videomux(struct saa7164_port *port); int saa7164_api_set_vbi_format(struct saa7164_port *port); int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level); -int saa7164_api_collect_debug(struct saa7164_dev *dev, struct seq_file *m); +int saa7164_api_collect_debug(struct saa7164_dev *dev); /* ----------------------------------------------------------- */ /* saa7164-cards.c */ |