/*
* imon.c: input and display driver for SoundGraph iMON IR/VFD/LCD
*
- * Copyright(C) 2009 Jarod Wilson <jarod@wilsonet.com>
+ * Copyright(C) 2010 Jarod Wilson <jarod@wilsonet.com>
* Portions based on the original lirc_imon driver,
* Copyright(C) 2004 Venky Raju(dev@venky.ws)
*
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
+
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kernel.h>
struct input_dev *idev; /* input device for panel & IR mouse */
struct input_dev *touch; /* input device for touchscreen */
+ spinlock_t kc_lock; /* make sure we get keycodes right */
u32 kc; /* current input keycode */
u32 last_keycode; /* last reported input keycode */
u32 rc_scancode; /* the computed remote scancode */
{ 0x000100000000ffeell, KEY_VOLUMEUP },
{ 0x010000000000ffeell, KEY_VOLUMEDOWN },
{ 0x000000000100ffeell, KEY_MUTE },
+ /* 0xffdc iMON MCE VFD */
+ { 0x00010000ffffffeell, KEY_VOLUMEUP },
+ { 0x01000000ffffffeell, KEY_VOLUMEDOWN },
/* iMON Knob values */
{ 0x000100ffffffffeell, KEY_VOLUMEUP },
{ 0x010000ffffffffeell, KEY_VOLUMEDOWN },
subminor = iminor(inode);
interface = usb_find_interface(&imon_driver, subminor);
if (!interface) {
- err("%s: could not find interface for minor %d",
- __func__, subminor);
+ pr_err("could not find interface for minor %d\n", subminor);
retval = -ENODEV;
goto exit;
}
ictx = usb_get_intfdata(interface);
if (!ictx) {
- err("%s: no context found for minor %d", __func__, subminor);
+ pr_err("no context found for minor %d\n", subminor);
retval = -ENODEV;
goto exit;
}
mutex_lock(&ictx->lock);
if (!ictx->display_supported) {
- err("%s: display not supported by device", __func__);
+ pr_err("display not supported by device\n");
retval = -ENODEV;
} else if (ictx->display_isopen) {
- err("%s: display port is already open", __func__);
+ pr_err("display port is already open\n");
retval = -EBUSY;
} else {
ictx->display_isopen = true;
ictx = file->private_data;
if (!ictx) {
- err("%s: no context for device", __func__);
+ pr_err("no context for device\n");
return -ENODEV;
}
mutex_lock(&ictx->lock);
if (!ictx->display_supported) {
- err("%s: display not supported by device", __func__);
+ pr_err("display not supported by device\n");
retval = -ENODEV;
} else if (!ictx->display_isopen) {
- err("%s: display is not open", __func__);
+ pr_err("display is not open\n");
retval = -EIO;
} else {
ictx->display_isopen = false;
if (retval) {
ictx->tx.busy = false;
smp_rmb(); /* ensure later readers know we're not busy */
- err("%s: error submitting urb(%d)", __func__, retval);
+ pr_err("error submitting urb(%d)\n", retval);
} else {
/* Wait for transmission to complete (or abort) */
mutex_unlock(&ictx->lock);
retval = wait_for_completion_interruptible(
&ictx->tx.finished);
if (retval)
- err("%s: task interrupted", __func__);
+ pr_err("task interrupted\n");
mutex_lock(&ictx->lock);
retval = ictx->tx.status;
if (retval)
- err("%s: packet tx failed (%d)", __func__, retval);
+ pr_err("packet tx failed (%d)\n", retval);
}
kfree(control_req);
0x00, 0x00, 0x00, 0x20 };
if (!ictx) {
- err("%s: no context for device", __func__);
+ pr_err("no context for device\n");
return -ENODEV;
}
if (!ictx->dev_present_intf0) {
- err("%s: no iMON device present", __func__);
+ pr_err("no iMON device present\n");
return -ENODEV;
}
int i;
if (!ictx) {
- err("%s: no context for device", __func__);
+ pr_err("no context for device\n");
return -ENODEV;
}
memcpy(ictx->usb_tx_buf, clock_enable_pkt[i], 8);
retval = send_packet(ictx);
if (retval) {
- err("%s: send_packet failed for packet %d",
- __func__, i);
+ pr_err("send_packet failed for packet %d\n", i);
break;
}
}
ictx = file->private_data;
if (!ictx) {
- err("%s: no context for device", __func__);
+ pr_err("no context for device\n");
return -ENODEV;
}
mutex_lock(&ictx->lock);
if (!ictx->dev_present_intf0) {
- err("%s: no iMON device present", __func__);
+ pr_err("no iMON device present\n");
retval = -ENODEV;
goto exit;
}
if (n_bytes <= 0 || n_bytes > 32) {
- err("%s: invalid payload size", __func__);
+ pr_err("invalid payload size\n");
retval = -EINVAL;
goto exit;
}
retval = send_packet(ictx);
if (retval) {
- err("%s: send packet failed for packet #%d",
- __func__, seq/2);
+ pr_err("send packet failed for packet #%d\n", seq / 2);
goto exit;
} else {
seq += 2;
ictx->usb_tx_buf[7] = (unsigned char) seq;
retval = send_packet(ictx);
if (retval)
- err("%s: send packet failed for packet #%d",
- __func__, seq / 2);
+ pr_err("send packet failed for packet #%d\n", seq / 2);
exit:
mutex_unlock(&ictx->lock);
ictx = file->private_data;
if (!ictx) {
- err("%s: no context for device", __func__);
+ pr_err("no context for device\n");
return -ENODEV;
}
mutex_lock(&ictx->lock);
if (!ictx->display_supported) {
- err("%s: no iMON display present", __func__);
+ pr_err("no iMON display present\n");
retval = -ENODEV;
goto exit;
}
if (n_bytes != 8) {
- err("%s: invalid payload size: %d (expecting 8)",
- __func__, (int) n_bytes);
+ pr_err("invalid payload size: %d (expected 8)\n", (int)n_bytes);
retval = -EINVAL;
goto exit;
}
retval = send_packet(ictx);
if (retval) {
- err("%s: send packet failed!", __func__);
+ pr_err("send packet failed!\n");
goto exit;
} else {
dev_dbg(ictx->dev, "%s: write %d bytes to LCD\n",
u8 right_shift = 1;
bool mouse_input = true;
int dir = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ictx->kc_lock, flags);
/* newer iMON device PAD or mouse button */
if (ictx->product != 0xffdc && (buf[0] & 0x01) && len == 5) {
} else
mouse_input = false;
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
+
if (mouse_input) {
dev_dbg(ictx->dev, "sending mouse data via input subsystem\n");
buf[1] >> right_shift & 0x1);
}
input_sync(ictx->idev);
+ spin_lock_irqsave(&ictx->kc_lock, flags);
ictx->last_keycode = ictx->kc;
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
}
return mouse_input;
char rel_x = 0x00, rel_y = 0x00;
u16 timeout, threshold;
u32 scancode = KEY_RESERVED;
+ unsigned long flags;
/*
* The imon directional pad functions more like a touchpad. Bytes 3 & 4
dir = stabilize((int)rel_x, (int)rel_y,
timeout, threshold);
if (!dir) {
+ spin_lock_irqsave(&ictx->kc_lock,
+ flags);
ictx->kc = KEY_UNKNOWN;
+ spin_unlock_irqrestore(&ictx->kc_lock,
+ flags);
return;
}
buf[2] = dir & 0xFF;
dir = stabilize((int)rel_x, (int)rel_y,
timeout, threshold);
if (!dir) {
+ spin_lock_irqsave(&ictx->kc_lock, flags);
ictx->kc = KEY_UNKNOWN;
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
return;
}
buf[2] = dir & 0xFF;
}
}
- if (scancode)
+ if (scancode) {
+ spin_lock_irqsave(&ictx->kc_lock, flags);
ictx->kc = imon_remote_key_lookup(ictx, scancode);
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
+ }
}
/**
unsigned char *buf, u8 ktype)
{
int press_type = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ictx->kc_lock, flags);
/* key release of 0x02XXXXXX key */
if (ictx->kc == KEY_RESERVED && buf[0] == 0x02 && buf[3] == 0x00)
else
press_type = 1;
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
+
return press_type;
}
int len = urb->actual_length;
unsigned char *buf = urb->transfer_buffer;
struct device *dev = ictx->dev;
+ unsigned long flags;
u32 kc;
bool norelease = false;
int i;
}
}
+ spin_lock_irqsave(&ictx->kc_lock, flags);
/* keyboard/mouse mode toggle button */
if (kc == KEY_KEYBOARD && !ictx->release_code) {
ictx->last_keycode = kc;
ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1;
dev_dbg(dev, "toggling to %s mode\n",
ictx->pad_mouse ? "mouse" : "keyboard");
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
return;
} else {
ictx->pad_mouse = 0;
}
ictx->kc = kc;
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
/* send touchscreen events through input subsystem if touchpad data */
if (ictx->display_type == IMON_DISPLAY_TYPE_VGA && len == 8 &&
if (press_type < 0)
goto not_input_data;
+ spin_lock_irqsave(&ictx->kc_lock, flags);
if (ictx->kc == KEY_UNKNOWN)
goto unknown_key;
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
if (ktype != IMON_KEY_PANEL) {
if (press_type == 0)
else {
ir_keydown(ictx->rdev, ictx->rc_scancode,
ictx->rc_toggle);
+ spin_lock_irqsave(&ictx->kc_lock, flags);
ictx->last_keycode = ictx->kc;
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
}
return;
}
/* Only panel type events left to process now */
+ spin_lock_irqsave(&ictx->kc_lock, flags);
+
/* KEY_MUTE repeats from knob need to be suppressed */
if (ictx->kc == KEY_MUTE && ictx->kc == ictx->last_keycode) {
do_gettimeofday(&t);
msec = tv2int(&t, &prev_time);
prev_time = t;
- if (msec < idev->rep[REP_DELAY])
+ if (msec < idev->rep[REP_DELAY]) {
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
return;
+ }
}
+ kc = ictx->kc;
- input_report_key(idev, ictx->kc, press_type);
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
+
+ input_report_key(idev, kc, press_type);
input_sync(idev);
/* panel keys don't generate a release */
- input_report_key(idev, ictx->kc, 0);
+ input_report_key(idev, kc, 0);
input_sync(idev);
- ictx->last_keycode = ictx->kc;
+ ictx->last_keycode = kc;
return;
unknown_key:
+ spin_unlock_irqrestore(&ictx->kc_lock, flags);
dev_info(dev, "%s: unknown keypress, code 0x%llx\n", __func__,
(long long)scancode);
return;
usb_submit_urb(ictx->rx_urb_intf1, GFP_ATOMIC);
}
+/*
+ * The 0x15c2:0xffdc device ID was used for umpteen different imon
+ * devices, and all of them constantly spew interrupts, even when there
+ * is no actual data to report. However, byte 6 of this buffer looks like
+ * its unique across device variants, so we're trying to key off that to
+ * figure out which display type (if any) and what IR protocol the device
+ * actually supports. These devices have their IR protocol hard-coded into
+ * their firmware, they can't be changed on the fly like the newer hardware.
+ */
+static void imon_get_ffdc_type(struct imon_context *ictx)
+{
+ u8 ffdc_cfg_byte = ictx->usb_rx_buf[6];
+ u8 detected_display_type = IMON_DISPLAY_TYPE_NONE;
+ u64 allowed_protos = IR_TYPE_OTHER;
+
+ switch (ffdc_cfg_byte) {
+ /* iMON Knob, no display, iMON IR + vol knob */
+ case 0x21:
+ dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR");
+ ictx->display_supported = false;
+ break;
+ /* iMON 2.4G LT (usb stick), no display, iMON RF */
+ case 0x4e:
+ dev_info(ictx->dev, "0xffdc iMON 2.4G LT, iMON RF");
+ ictx->display_supported = false;
+ ictx->rf_device = true;
+ break;
+ /* iMON VFD, no IR (does have vol knob tho) */
+ case 0x35:
+ dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR");
+ detected_display_type = IMON_DISPLAY_TYPE_VFD;
+ break;
+ /* iMON VFD, iMON IR */
+ case 0x24:
+ case 0x85:
+ dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR");
+ detected_display_type = IMON_DISPLAY_TYPE_VFD;
+ break;
+ /* iMON VFD, MCE IR */
+ case 0x9e:
+ dev_info(ictx->dev, "0xffdc iMON VFD, MCE IR");
+ detected_display_type = IMON_DISPLAY_TYPE_VFD;
+ allowed_protos = IR_TYPE_RC6;
+ break;
+ /* iMON LCD, MCE IR */
+ case 0x9f:
+ dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR");
+ detected_display_type = IMON_DISPLAY_TYPE_LCD;
+ allowed_protos = IR_TYPE_RC6;
+ break;
+ default:
+ dev_info(ictx->dev, "Unknown 0xffdc device, "
+ "defaulting to VFD and iMON IR");
+ detected_display_type = IMON_DISPLAY_TYPE_VFD;
+ break;
+ }
+
+ printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte);
+
+ ictx->display_type = detected_display_type;
+ ictx->props->allowed_protos = allowed_protos;
+ ictx->ir_type = allowed_protos;
+}
+
+static void imon_set_display_type(struct imon_context *ictx)
+{
+ u8 configured_display_type = IMON_DISPLAY_TYPE_VFD;
+
+ /*
+ * Try to auto-detect the type of display if the user hasn't set
+ * it by hand via the display_type modparam. Default is VFD.
+ */
+
+ if (display_type == IMON_DISPLAY_TYPE_AUTO) {
+ switch (ictx->product) {
+ case 0xffdc:
+ /* set in imon_get_ffdc_type() */
+ configured_display_type = ictx->display_type;
+ break;
+ case 0x0034:
+ case 0x0035:
+ configured_display_type = IMON_DISPLAY_TYPE_VGA;
+ break;
+ case 0x0038:
+ case 0x0039:
+ case 0x0045:
+ configured_display_type = IMON_DISPLAY_TYPE_LCD;
+ break;
+ case 0x003c:
+ case 0x0041:
+ case 0x0042:
+ case 0x0043:
+ configured_display_type = IMON_DISPLAY_TYPE_NONE;
+ ictx->display_supported = false;
+ break;
+ case 0x0036:
+ case 0x0044:
+ default:
+ configured_display_type = IMON_DISPLAY_TYPE_VFD;
+ break;
+ }
+ } else {
+ configured_display_type = display_type;
+ if (display_type == IMON_DISPLAY_TYPE_NONE)
+ ictx->display_supported = false;
+ else
+ ictx->display_supported = true;
+ dev_info(ictx->dev, "%s: overriding display type to %d via "
+ "modparam\n", __func__, display_type);
+ }
+
+ ictx->display_type = configured_display_type;
+}
+
static struct input_dev *imon_init_rdev(struct imon_context *ictx)
{
struct input_dev *rdev;
struct ir_dev_props *props;
int ret;
+ char *ir_codes = NULL;
+ const unsigned char fp_packet[] = { 0x40, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x88 };
rdev = input_allocate_device();
props = kzalloc(sizeof(*props), GFP_KERNEL);
props->change_protocol = imon_ir_change_protocol;
ictx->props = props;
- ret = ir_input_register(rdev, RC_MAP_IMON_PAD, props, MOD_NAME);
+ /* Enable front-panel buttons and/or knobs */
+ memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet));
+ ret = send_packet(ictx);
+ /* Not fatal, but warn about it */
+ if (ret)
+ dev_info(ictx->dev, "panel buttons/knobs setup failed\n");
+
+ if (ictx->product == 0xffdc)
+ imon_get_ffdc_type(ictx);
+
+ imon_set_display_type(ictx);
+
+ if (ictx->ir_type == IR_TYPE_RC6)
+ ir_codes = RC_MAP_IMON_MCE;
+ else
+ ir_codes = RC_MAP_IMON_PAD;
+
+ ret = ir_input_register(rdev, ir_codes, props, MOD_NAME);
if (ret < 0) {
dev_err(ictx->dev, "remote input dev register failed\n");
goto out;
/* Input endpoint is mandatory */
if (!ir_ep_found)
- err("%s: no valid input (IR) endpoint found.", __func__);
+ pr_err("no valid input (IR) endpoint found\n");
ictx->tx_control = tx_control;
}
mutex_init(&ictx->lock);
+ spin_lock_init(&ictx->kc_lock);
mutex_lock(&ictx->lock);
ret = usb_submit_urb(ictx->rx_urb_intf0, GFP_KERNEL);
if (ret) {
- err("%s: usb_submit_urb failed for intf0 (%d)",
- __func__, ret);
+ pr_err("usb_submit_urb failed for intf0 (%d)\n", ret);
goto urb_submit_failed;
}
rx_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!rx_urb) {
- err("%s: usb_alloc_urb failed for IR urb", __func__);
+ pr_err("usb_alloc_urb failed for IR urb\n");
goto rx_urb_alloc_failed;
}
ret = usb_submit_urb(ictx->rx_urb_intf1, GFP_KERNEL);
if (ret) {
- err("%s: usb_submit_urb failed for intf1 (%d)",
- __func__, ret);
+ pr_err("usb_submit_urb failed for intf1 (%d)\n", ret);
goto urb_submit_failed;
}
return NULL;
}
-/*
- * The 0x15c2:0xffdc device ID was used for umpteen different imon
- * devices, and all of them constantly spew interrupts, even when there
- * is no actual data to report. However, byte 6 of this buffer looks like
- * its unique across device variants, so we're trying to key off that to
- * figure out which display type (if any) and what IR protocol the device
- * actually supports. These devices have their IR protocol hard-coded into
- * their firmware, they can't be changed on the fly like the newer hardware.
- */
-static void imon_get_ffdc_type(struct imon_context *ictx)
-{
- u8 ffdc_cfg_byte = ictx->usb_rx_buf[6];
- u8 detected_display_type = IMON_DISPLAY_TYPE_NONE;
- u64 allowed_protos = IR_TYPE_OTHER;
-
- switch (ffdc_cfg_byte) {
- /* iMON Knob, no display, iMON IR + vol knob */
- case 0x21:
- dev_info(ictx->dev, "0xffdc iMON Knob, iMON IR");
- ictx->display_supported = false;
- break;
- /* iMON 2.4G LT (usb stick), no display, iMON RF */
- case 0x4e:
- dev_info(ictx->dev, "0xffdc iMON 2.4G LT, iMON RF");
- ictx->display_supported = false;
- ictx->rf_device = true;
- break;
- /* iMON VFD, no IR (does have vol knob tho) */
- case 0x35:
- dev_info(ictx->dev, "0xffdc iMON VFD + knob, no IR");
- detected_display_type = IMON_DISPLAY_TYPE_VFD;
- break;
- /* iMON VFD, iMON IR */
- case 0x24:
- case 0x85:
- dev_info(ictx->dev, "0xffdc iMON VFD, iMON IR");
- detected_display_type = IMON_DISPLAY_TYPE_VFD;
- break;
- /* iMON LCD, MCE IR */
- case 0x9e:
- case 0x9f:
- dev_info(ictx->dev, "0xffdc iMON LCD, MCE IR");
- detected_display_type = IMON_DISPLAY_TYPE_LCD;
- allowed_protos = IR_TYPE_RC6;
- break;
- default:
- dev_info(ictx->dev, "Unknown 0xffdc device, "
- "defaulting to VFD and iMON IR");
- detected_display_type = IMON_DISPLAY_TYPE_VFD;
- break;
- }
-
- printk(KERN_CONT " (id 0x%02x)\n", ffdc_cfg_byte);
-
- ictx->display_type = detected_display_type;
- ictx->props->allowed_protos = allowed_protos;
- ictx->ir_type = allowed_protos;
-}
-
-static void imon_set_display_type(struct imon_context *ictx,
- struct usb_interface *intf)
-{
- u8 configured_display_type = IMON_DISPLAY_TYPE_VFD;
-
- /*
- * Try to auto-detect the type of display if the user hasn't set
- * it by hand via the display_type modparam. Default is VFD.
- */
-
- if (display_type == IMON_DISPLAY_TYPE_AUTO) {
- switch (ictx->product) {
- case 0xffdc:
- /* set in imon_get_ffdc_type() */
- configured_display_type = ictx->display_type;
- break;
- case 0x0034:
- case 0x0035:
- configured_display_type = IMON_DISPLAY_TYPE_VGA;
- break;
- case 0x0038:
- case 0x0039:
- case 0x0045:
- configured_display_type = IMON_DISPLAY_TYPE_LCD;
- break;
- case 0x003c:
- case 0x0041:
- case 0x0042:
- case 0x0043:
- configured_display_type = IMON_DISPLAY_TYPE_NONE;
- ictx->display_supported = false;
- break;
- case 0x0036:
- case 0x0044:
- default:
- configured_display_type = IMON_DISPLAY_TYPE_VFD;
- break;
- }
- } else {
- configured_display_type = display_type;
- if (display_type == IMON_DISPLAY_TYPE_NONE)
- ictx->display_supported = false;
- else
- ictx->display_supported = true;
- dev_info(ictx->dev, "%s: overriding display type to %d via "
- "modparam\n", __func__, display_type);
- }
-
- ictx->display_type = configured_display_type;
-}
-
static void imon_init_display(struct imon_context *ictx,
struct usb_interface *intf)
{
struct imon_context *ictx = NULL;
struct imon_context *first_if_ctx = NULL;
u16 vendor, product;
- const unsigned char fp_packet[] = { 0x40, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x88 };
code_length = BUF_CHUNK_SIZE * 8;
if (ifnum == 0) {
ictx = imon_init_intf0(interface);
if (!ictx) {
- err("%s: failed to initialize context!\n", __func__);
+ pr_err("failed to initialize context!\n");
ret = -ENODEV;
goto fail;
}
/* this is the secondary interface on the device */
ictx = imon_init_intf1(interface, first_if_ctx);
if (!ictx) {
- err("%s: failed to attach to context!\n", __func__);
+ pr_err("failed to attach to context!\n");
ret = -ENODEV;
goto fail;
}
usb_set_intfdata(interface, ictx);
if (ifnum == 0) {
- /* Enable front-panel buttons and/or knobs */
- memcpy(ictx->usb_tx_buf, &fp_packet, sizeof(fp_packet));
- ret = send_packet(ictx);
- /* Not fatal, but warn about it */
- if (ret)
- dev_info(dev, "failed to enable panel buttons "
- "and/or knobs\n");
-
- if (product == 0xffdc)
- imon_get_ffdc_type(ictx);
-
- imon_set_display_type(ictx, interface);
-
if (product == 0xffdc && ictx->rf_device) {
sysfs_err = sysfs_create_group(&interface->dev.kobj,
&imon_rf_attribute_group);
if (sysfs_err)
- err("%s: Could not create RF sysfs entries(%d)",
- __func__, sysfs_err);
+ pr_err("Could not create RF sysfs entries(%d)\n",
+ sysfs_err);
}
if (ictx->display_supported)
rc = usb_register(&imon_driver);
if (rc) {
- err("%s: usb register failed(%d)", __func__, rc);
+ pr_err("usb register failed(%d)\n", rc);
rc = -ENODEV;
}
projects / cascardo / linux.git / blobdiff