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path: root/drivers/media/usb/em28xx/em28xx-core.c
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Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-core.c')
-rw-r--r--drivers/media/usb/em28xx/em28xx-core.c206
1 files changed, 105 insertions, 101 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
index eebd5d7088d0..19ccff41c7eb 100644
--- a/drivers/media/usb/em28xx/em28xx-core.c
+++ b/drivers/media/usb/em28xx/em28xx-core.c
@@ -22,6 +22,8 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include "em28xx.h"
+
#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/list.h>
@@ -32,8 +34,6 @@
#include <sound/ac97_codec.h>
#include <media/v4l2-common.h>
-#include "em28xx.h"
-
#define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \
"Markus Rechberger <mrechberger@gmail.com>, " \
"Mauro Carvalho Chehab <mchehab@infradead.org>, " \
@@ -48,27 +48,31 @@ MODULE_VERSION(EM28XX_VERSION);
static unsigned int core_debug;
module_param(core_debug, int, 0644);
-MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
+MODULE_PARM_DESC(core_debug, "enable debug messages [core and isoc]");
-#define em28xx_coredbg(fmt, arg...) do {\
- if (core_debug) \
- printk(KERN_INFO "%s %s :"fmt, \
- dev->name, __func__ , ##arg); } while (0)
+#define em28xx_coredbg(fmt, arg...) do { \
+ if (core_debug) \
+ dev_printk(KERN_DEBUG, &dev->intf->dev, \
+ "core: %s: " fmt, __func__, ## arg); \
+} while (0)
static unsigned int reg_debug;
module_param(reg_debug, int, 0644);
MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
-#define em28xx_regdbg(fmt, arg...) do {\
- if (reg_debug) \
- printk(KERN_INFO "%s %s :"fmt, \
- dev->name, __func__ , ##arg); } while (0)
-/* FIXME */
-#define em28xx_isocdbg(fmt, arg...) do {\
- if (core_debug) \
- printk(KERN_INFO "%s %s :"fmt, \
- dev->name, __func__ , ##arg); } while (0)
+#define em28xx_regdbg(fmt, arg...) do { \
+ if (reg_debug) \
+ dev_printk(KERN_DEBUG, &dev->intf->dev, \
+ "reg: %s: " fmt, __func__, ## arg); \
+} while (0)
+
+/* FIXME: don't abuse core_debug */
+#define em28xx_isocdbg(fmt, arg...) do { \
+ if (core_debug) \
+ dev_printk(KERN_DEBUG, &dev->intf->dev, \
+ "core: %s: " fmt, __func__, ## arg); \
+} while (0)
/*
* em28xx_read_reg_req()
@@ -78,7 +82,8 @@ int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
char *buf, int len)
{
int ret;
- int pipe = usb_rcvctrlpipe(dev->udev, 0);
+ struct usb_device *udev = interface_to_usbdev(dev->intf);
+ int pipe = usb_rcvctrlpipe(udev, 0);
if (dev->disconnected)
return -ENODEV;
@@ -86,23 +91,22 @@ int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
if (len > URB_MAX_CTRL_SIZE)
return -EINVAL;
- if (reg_debug) {
- printk(KERN_DEBUG "(pipe 0x%08x): "
- "IN: %02x %02x %02x %02x %02x %02x %02x %02x ",
- pipe,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- req, 0, 0,
- reg & 0xff, reg >> 8,
- len & 0xff, len >> 8);
- }
+ em28xx_regdbg("(pipe 0x%08x): IN: %02x %02x %02x %02x %02x %02x %02x %02x ",
+ pipe, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ req, 0, 0,
+ reg & 0xff, reg >> 8,
+ len & 0xff, len >> 8);
mutex_lock(&dev->ctrl_urb_lock);
- ret = usb_control_msg(dev->udev, pipe, req,
+ ret = usb_control_msg(udev, pipe, req,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0000, reg, dev->urb_buf, len, HZ);
if (ret < 0) {
- if (reg_debug)
- printk(" failed!\n");
+ em28xx_regdbg("(pipe 0x%08x): IN: %02x %02x %02x %02x %02x %02x %02x %02x failed\n",
+ pipe, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ req, 0, 0,
+ reg & 0xff, reg >> 8,
+ len & 0xff, len >> 8);
mutex_unlock(&dev->ctrl_urb_lock);
return usb_translate_errors(ret);
}
@@ -112,14 +116,11 @@ int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
mutex_unlock(&dev->ctrl_urb_lock);
- if (reg_debug) {
- int byte;
-
- printk("<<<");
- for (byte = 0; byte < len; byte++)
- printk(" %02x", (unsigned char)buf[byte]);
- printk("\n");
- }
+ em28xx_regdbg("(pipe 0x%08x): IN: %02x %02x %02x %02x %02x %02x %02x %02x failed <<< %*ph\n",
+ pipe, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ req, 0, 0,
+ reg & 0xff, reg >> 8,
+ len & 0xff, len >> 8, len, buf);
return ret;
}
@@ -154,7 +155,8 @@ int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
int len)
{
int ret;
- int pipe = usb_sndctrlpipe(dev->udev, 0);
+ struct usb_device *udev = interface_to_usbdev(dev->intf);
+ int pipe = usb_sndctrlpipe(udev, 0);
if (dev->disconnected)
return -ENODEV;
@@ -162,25 +164,16 @@ int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
return -EINVAL;
- if (reg_debug) {
- int byte;
-
- printk(KERN_DEBUG "(pipe 0x%08x): "
- "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
- pipe,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- req, 0, 0,
- reg & 0xff, reg >> 8,
- len & 0xff, len >> 8);
-
- for (byte = 0; byte < len; byte++)
- printk(" %02x", (unsigned char)buf[byte]);
- printk("\n");
- }
+ em28xx_regdbg("(pipe 0x%08x): OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>> %*ph\n",
+ pipe,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ req, 0, 0,
+ reg & 0xff, reg >> 8,
+ len & 0xff, len >> 8, len, buf);
mutex_lock(&dev->ctrl_urb_lock);
memcpy(dev->urb_buf, buf, len);
- ret = usb_control_msg(dev->udev, pipe, req,
+ ret = usb_control_msg(udev, pipe, req,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0000, reg, dev->urb_buf, len, HZ);
mutex_unlock(&dev->ctrl_urb_lock);
@@ -267,7 +260,8 @@ static int em28xx_is_ac97_ready(struct em28xx *dev)
msleep(5);
}
- em28xx_warn("AC97 command still being executed: not handled properly!\n");
+ dev_warn(&dev->intf->dev,
+ "AC97 command still being executed: not handled properly!\n");
return -EBUSY;
}
@@ -360,8 +354,9 @@ static int set_ac97_input(struct em28xx *dev)
ret = em28xx_write_ac97(dev, inputs[i].reg, 0x8000);
if (ret < 0)
- em28xx_warn("couldn't setup AC97 register %d\n",
- inputs[i].reg);
+ dev_warn(&dev->intf->dev,
+ "couldn't setup AC97 register %d\n",
+ inputs[i].reg);
}
return 0;
}
@@ -444,8 +439,9 @@ int em28xx_audio_analog_set(struct em28xx *dev)
for (i = 0; i < ARRAY_SIZE(outputs); i++) {
ret = em28xx_write_ac97(dev, outputs[i].reg, 0x8000);
if (ret < 0)
- em28xx_warn("couldn't setup AC97 register %d\n",
- outputs[i].reg);
+ dev_warn(&dev->intf->dev,
+ "couldn't setup AC97 register %d\n",
+ outputs[i].reg);
}
}
@@ -482,8 +478,9 @@ int em28xx_audio_analog_set(struct em28xx *dev)
ret = em28xx_write_ac97(dev, outputs[i].reg,
vol);
if (ret < 0)
- em28xx_warn("couldn't setup AC97 register %d\n",
- outputs[i].reg);
+ dev_warn(&dev->intf->dev,
+ "couldn't setup AC97 register %d\n",
+ outputs[i].reg);
}
if (dev->ctl_aoutput & EM28XX_AOUT_PCM_IN) {
@@ -519,7 +516,7 @@ int em28xx_audio_setup(struct em28xx *dev)
/* See how this device is configured */
cfg = em28xx_read_reg(dev, EM28XX_R00_CHIPCFG);
- em28xx_info("Config register raw data: 0x%02x\n", cfg);
+ dev_info(&dev->intf->dev, "Config register raw data: 0x%02x\n", cfg);
if (cfg < 0) { /* Register read error */
/* Be conservative */
dev->int_audio_type = EM28XX_INT_AUDIO_AC97;
@@ -540,8 +537,8 @@ int em28xx_audio_setup(struct em28xx *dev)
i2s_samplerates = 5;
else
i2s_samplerates = 3;
- em28xx_info("I2S Audio (%d sample rate(s))\n",
- i2s_samplerates);
+ dev_info(&dev->intf->dev, "I2S Audio (%d sample rate(s))\n",
+ i2s_samplerates);
/* Skip the code that does AC97 vendor detection */
dev->audio_mode.ac97 = EM28XX_NO_AC97;
goto init_audio;
@@ -558,7 +555,8 @@ int em28xx_audio_setup(struct em28xx *dev)
* Note: (some) em2800 devices without eeprom reports 0x91 on
* CHIPCFG register, even not having an AC97 chip
*/
- em28xx_warn("AC97 chip type couldn't be determined\n");
+ dev_warn(&dev->intf->dev,
+ "AC97 chip type couldn't be determined\n");
dev->audio_mode.ac97 = EM28XX_NO_AC97;
if (dev->usb_audio_type == EM28XX_USB_AUDIO_VENDOR)
dev->usb_audio_type = EM28XX_USB_AUDIO_NONE;
@@ -571,13 +569,13 @@ int em28xx_audio_setup(struct em28xx *dev)
goto init_audio;
vid = vid1 << 16 | vid2;
- em28xx_warn("AC97 vendor ID = 0x%08x\n", vid);
+ dev_warn(&dev->intf->dev, "AC97 vendor ID = 0x%08x\n", vid);
feat = em28xx_read_ac97(dev, AC97_RESET);
if (feat < 0)
goto init_audio;
- em28xx_warn("AC97 features = 0x%04x\n", feat);
+ dev_warn(&dev->intf->dev, "AC97 features = 0x%04x\n", feat);
/* Try to identify what audio processor we have */
if (((vid == 0xffffffff) || (vid == 0x83847650)) && (feat == 0x6a90))
@@ -589,17 +587,20 @@ init_audio:
/* Reports detected AC97 processor */
switch (dev->audio_mode.ac97) {
case EM28XX_NO_AC97:
- em28xx_info("No AC97 audio processor\n");
+ dev_info(&dev->intf->dev, "No AC97 audio processor\n");
break;
case EM28XX_AC97_EM202:
- em28xx_info("Empia 202 AC97 audio processor detected\n");
+ dev_info(&dev->intf->dev,
+ "Empia 202 AC97 audio processor detected\n");
break;
case EM28XX_AC97_SIGMATEL:
- em28xx_info("Sigmatel audio processor detected (stac 97%02x)\n",
- vid & 0xff);
+ dev_info(&dev->intf->dev,
+ "Sigmatel audio processor detected (stac 97%02x)\n",
+ vid & 0xff);
break;
case EM28XX_AC97_OTHER:
- em28xx_warn("Unknown AC97 audio processor detected!\n");
+ dev_warn(&dev->intf->dev,
+ "Unknown AC97 audio processor detected!\n");
break;
default:
break;
@@ -798,6 +799,7 @@ void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode)
{
struct urb *urb;
struct em28xx_usb_bufs *usb_bufs;
+ struct usb_device *udev = interface_to_usbdev(dev->intf);
int i;
em28xx_isocdbg("em28xx: called em28xx_uninit_usb_xfer in mode %d\n",
@@ -817,7 +819,7 @@ void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode)
usb_unlink_urb(urb);
if (usb_bufs->transfer_buffer[i]) {
- usb_free_coherent(dev->udev,
+ usb_free_coherent(udev,
urb->transfer_buffer_length,
usb_bufs->transfer_buffer[i],
urb->transfer_dma);
@@ -871,9 +873,10 @@ int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
int num_bufs, int max_pkt_size, int packet_multiplier)
{
struct em28xx_usb_bufs *usb_bufs;
+ struct urb *urb;
+ struct usb_device *udev = interface_to_usbdev(dev->intf);
int i;
int sb_size, pipe;
- struct urb *urb;
int j, k;
em28xx_isocdbg("em28xx: called em28xx_alloc_isoc in mode %d\n", mode);
@@ -883,21 +886,23 @@ int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
if (mode == EM28XX_DIGITAL_MODE) {
if ((xfer_bulk && !dev->dvb_ep_bulk) ||
(!xfer_bulk && !dev->dvb_ep_isoc)) {
- em28xx_errdev("no endpoint for DVB mode and transfer type %d\n",
- xfer_bulk > 0);
+ dev_err(&dev->intf->dev,
+ "no endpoint for DVB mode and transfer type %d\n",
+ xfer_bulk > 0);
return -EINVAL;
}
usb_bufs = &dev->usb_ctl.digital_bufs;
} else if (mode == EM28XX_ANALOG_MODE) {
if ((xfer_bulk && !dev->analog_ep_bulk) ||
(!xfer_bulk && !dev->analog_ep_isoc)) {
- em28xx_errdev("no endpoint for analog mode and transfer type %d\n",
- xfer_bulk > 0);
+ dev_err(&dev->intf->dev,
+ "no endpoint for analog mode and transfer type %d\n",
+ xfer_bulk > 0);
return -EINVAL;
}
usb_bufs = &dev->usb_ctl.analog_bufs;
} else {
- em28xx_errdev("invalid mode selected\n");
+ dev_err(&dev->intf->dev, "invalid mode selected\n");
return -EINVAL;
}
@@ -907,15 +912,12 @@ int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
usb_bufs->num_bufs = num_bufs;
usb_bufs->urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
- if (!usb_bufs->urb) {
- em28xx_errdev("cannot alloc memory for usb buffers\n");
+ if (!usb_bufs->urb)
return -ENOMEM;
- }
usb_bufs->transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
GFP_KERNEL);
if (!usb_bufs->transfer_buffer) {
- em28xx_errdev("cannot allocate memory for usb transfer\n");
kfree(usb_bufs->urb);
return -ENOMEM;
}
@@ -939,33 +941,33 @@ int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
}
usb_bufs->urb[i] = urb;
- usb_bufs->transfer_buffer[i] = usb_alloc_coherent(dev->udev,
+ usb_bufs->transfer_buffer[i] = usb_alloc_coherent(udev,
sb_size, GFP_KERNEL, &urb->transfer_dma);
if (!usb_bufs->transfer_buffer[i]) {
- em28xx_err("unable to allocate %i bytes for transfer"
- " buffer %i%s\n",
- sb_size, i,
- in_interrupt() ? " while in int" : "");
+ dev_err(&dev->intf->dev,
+ "unable to allocate %i bytes for transfer buffer %i%s\n",
+ sb_size, i,
+ in_interrupt() ? " while in int" : "");
em28xx_uninit_usb_xfer(dev, mode);
return -ENOMEM;
}
memset(usb_bufs->transfer_buffer[i], 0, sb_size);
if (xfer_bulk) { /* bulk */
- pipe = usb_rcvbulkpipe(dev->udev,
+ pipe = usb_rcvbulkpipe(udev,
mode == EM28XX_ANALOG_MODE ?
dev->analog_ep_bulk :
dev->dvb_ep_bulk);
- usb_fill_bulk_urb(urb, dev->udev, pipe,
+ usb_fill_bulk_urb(urb, udev, pipe,
usb_bufs->transfer_buffer[i], sb_size,
em28xx_irq_callback, dev);
urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
} else { /* isoc */
- pipe = usb_rcvisocpipe(dev->udev,
+ pipe = usb_rcvisocpipe(udev,
mode == EM28XX_ANALOG_MODE ?
dev->analog_ep_isoc :
dev->dvb_ep_isoc);
- usb_fill_int_urb(urb, dev->udev, pipe,
+ usb_fill_int_urb(urb, udev, pipe,
usb_bufs->transfer_buffer[i], sb_size,
em28xx_irq_callback, dev, 1);
urb->transfer_flags = URB_ISO_ASAP |
@@ -997,6 +999,7 @@ int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
struct em28xx_dmaqueue *dma_q = &dev->vidq;
struct em28xx_dmaqueue *vbi_dma_q = &dev->vbiq;
struct em28xx_usb_bufs *usb_bufs;
+ struct usb_device *udev = interface_to_usbdev(dev->intf);
int i;
int rc;
int alloc;
@@ -1023,10 +1026,11 @@ int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
}
if (xfer_bulk) {
- rc = usb_clear_halt(dev->udev, usb_bufs->urb[0]->pipe);
+ rc = usb_clear_halt(udev, usb_bufs->urb[0]->pipe);
if (rc < 0) {
- em28xx_err("failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
- rc);
+ dev_err(&dev->intf->dev,
+ "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
+ rc);
em28xx_uninit_usb_xfer(dev, mode);
return rc;
}
@@ -1041,8 +1045,8 @@ int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
for (i = 0; i < usb_bufs->num_bufs; i++) {
rc = usb_submit_urb(usb_bufs->urb[i], GFP_ATOMIC);
if (rc) {
- em28xx_err("submit of urb %i failed (error=%i)\n", i,
- rc);
+ dev_err(&dev->intf->dev,
+ "submit of urb %i failed (error=%i)\n", i, rc);
em28xx_uninit_usb_xfer(dev, mode);
return rc;
}
@@ -1075,7 +1079,7 @@ int em28xx_register_extension(struct em28xx_ops *ops)
ops->init(dev);
}
mutex_unlock(&em28xx_devlist_mutex);
- printk(KERN_INFO "em28xx: Registered (%s) extension\n", ops->name);
+ pr_info("em28xx: Registered (%s) extension\n", ops->name);
return 0;
}
EXPORT_SYMBOL(em28xx_register_extension);
@@ -1090,7 +1094,7 @@ void em28xx_unregister_extension(struct em28xx_ops *ops)
}
list_del(&ops->next);
mutex_unlock(&em28xx_devlist_mutex);
- printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name);
+ pr_info("em28xx: Removed (%s) extension\n", ops->name);
}
EXPORT_SYMBOL(em28xx_unregister_extension);
@@ -1124,7 +1128,7 @@ int em28xx_suspend_extension(struct em28xx *dev)
{
const struct em28xx_ops *ops = NULL;
- em28xx_info("Suspending extensions\n");
+ dev_info(&dev->intf->dev, "Suspending extensions\n");
mutex_lock(&em28xx_devlist_mutex);
list_for_each_entry(ops, &em28xx_extension_devlist, next) {
if (ops->suspend)
@@ -1138,7 +1142,7 @@ int em28xx_resume_extension(struct em28xx *dev)
{
const struct em28xx_ops *ops = NULL;
- em28xx_info("Resuming extensions\n");
+ dev_info(&dev->intf->dev, "Resuming extensions\n");
mutex_lock(&em28xx_devlist_mutex);
list_for_each_entry(ops, &em28xx_extension_devlist, next) {
if (ops->resume)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.