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path: root/drivers/input/keyboard/hil_kbd.c
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Diffstat (limited to 'drivers/input/keyboard/hil_kbd.c')
-rw-r--r--drivers/input/keyboard/hil_kbd.c77
1 files changed, 43 insertions, 34 deletions
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 7143f37927c..18f4d417576 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -94,10 +94,12 @@ static void hil_kbd_process_record(struct hil_kbd *kbd)
idx = kbd->idx4/4;
p = data[idx - 1];
- if ((p & ~HIL_CMDCT_POL) ==
- (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL)) goto report;
- if ((p & ~HIL_CMDCT_RPL) ==
- (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL)) goto report;
+ if ((p & ~HIL_CMDCT_POL) ==
+ (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
+ goto report;
+ if ((p & ~HIL_CMDCT_RPL) ==
+ (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL))
+ goto report;
/* Not a poll response. See if we are loading config records. */
switch (p & HIL_PKT_DATA_MASK) {
@@ -107,27 +109,32 @@ static void hil_kbd_process_record(struct hil_kbd *kbd)
for (; i < HIL_KBD_MAX_LENGTH; i++)
kbd->idd[i] = 0;
break;
+
case HIL_CMD_RSC:
for (i = 0; i < idx; i++)
kbd->rsc[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
for (; i < HIL_KBD_MAX_LENGTH; i++)
kbd->rsc[i] = 0;
break;
+
case HIL_CMD_EXD:
for (i = 0; i < idx; i++)
kbd->exd[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
for (; i < HIL_KBD_MAX_LENGTH; i++)
kbd->exd[i] = 0;
break;
+
case HIL_CMD_RNM:
for (i = 0; i < idx; i++)
kbd->rnm[i] = kbd->data[i] & HIL_PKT_DATA_MASK;
for (; i < HIL_KBD_MAX_LENGTH + 1; i++)
kbd->rnm[i] = '\0';
break;
+
default:
/* These occur when device isn't present */
- if (p == (HIL_ERR_INT | HIL_PKT_CMD)) break;
+ if (p == (HIL_ERR_INT | HIL_PKT_CMD))
+ break;
/* Anything else we'd like to know about. */
printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
break;
@@ -139,16 +146,19 @@ static void hil_kbd_process_record(struct hil_kbd *kbd)
switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) {
case HIL_POL_CHARTYPE_NONE:
break;
+
case HIL_POL_CHARTYPE_ASCII:
while (cnt < idx - 1)
input_report_key(dev, kbd->data[cnt++] & 0x7f, 1);
break;
+
case HIL_POL_CHARTYPE_RSVD1:
case HIL_POL_CHARTYPE_RSVD2:
case HIL_POL_CHARTYPE_BINARY:
while (cnt < idx - 1)
input_report_key(dev, kbd->data[cnt++], 1);
break;
+
case HIL_POL_CHARTYPE_SET1:
while (cnt < idx - 1) {
unsigned int key;
@@ -161,6 +171,7 @@ static void hil_kbd_process_record(struct hil_kbd *kbd)
input_report_key(dev, key, !up);
}
break;
+
case HIL_POL_CHARTYPE_SET2:
while (cnt < idx - 1) {
unsigned int key;
@@ -173,6 +184,7 @@ static void hil_kbd_process_record(struct hil_kbd *kbd)
input_report_key(dev, key, !up);
}
break;
+
case HIL_POL_CHARTYPE_SET3:
while (cnt < idx - 1) {
unsigned int key;
@@ -191,42 +203,43 @@ static void hil_kbd_process_record(struct hil_kbd *kbd)
up(&kbd->sem);
}
-static void hil_kbd_process_err(struct hil_kbd *kbd) {
+static void hil_kbd_process_err(struct hil_kbd *kbd)
+{
printk(KERN_WARNING PREFIX "errored HIL packet\n");
kbd->idx4 = 0;
up(&kbd->sem);
}
-static irqreturn_t hil_kbd_interrupt(struct serio *serio,
- unsigned char data, unsigned int flags)
+static irqreturn_t hil_kbd_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
{
struct hil_kbd *kbd;
hil_packet packet;
int idx;
kbd = serio_get_drvdata(serio);
- if (kbd == NULL) {
- BUG();
- return IRQ_HANDLED;
- }
+ BUG_ON(kbd == NULL);
if (kbd->idx4 >= (HIL_KBD_MAX_LENGTH * sizeof(hil_packet))) {
hil_kbd_process_err(kbd);
return IRQ_HANDLED;
}
idx = kbd->idx4/4;
- if (!(kbd->idx4 % 4)) kbd->data[idx] = 0;
+ if (!(kbd->idx4 % 4))
+ kbd->data[idx] = 0;
packet = kbd->data[idx];
packet |= ((hil_packet)data) << ((3 - (kbd->idx4 % 4)) * 8);
kbd->data[idx] = packet;
/* Records of N 4-byte hil_packets must terminate with a command. */
- if ((++(kbd->idx4)) % 4) return IRQ_HANDLED;
+ if ((++(kbd->idx4)) % 4)
+ return IRQ_HANDLED;
if ((packet & 0xffff0000) != HIL_ERR_INT) {
hil_kbd_process_err(kbd);
return IRQ_HANDLED;
}
- if (packet & HIL_PKT_CMD) hil_kbd_process_record(kbd);
+ if (packet & HIL_PKT_CMD)
+ hil_kbd_process_record(kbd);
return IRQ_HANDLED;
}
@@ -235,10 +248,7 @@ static void hil_kbd_disconnect(struct serio *serio)
struct hil_kbd *kbd;
kbd = serio_get_drvdata(serio);
- if (kbd == NULL) {
- BUG();
- return;
- }
+ BUG_ON(kbd == NULL);
serio_close(serio);
input_unregister_device(kbd->dev);
@@ -267,34 +277,34 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
serio_set_drvdata(serio, kbd);
kbd->serio = serio;
- init_MUTEX_LOCKED(&(kbd->sem));
+ init_MUTEX_LOCKED(&kbd->sem);
/* Get device info. MLC driver supplies devid/status/etc. */
serio->write(serio, 0);
serio->write(serio, 0);
serio->write(serio, HIL_PKT_CMD >> 8);
serio->write(serio, HIL_CMD_IDD);
- down(&(kbd->sem));
+ down(&kbd->sem);
serio->write(serio, 0);
serio->write(serio, 0);
serio->write(serio, HIL_PKT_CMD >> 8);
serio->write(serio, HIL_CMD_RSC);
- down(&(kbd->sem));
+ down(&kbd->sem);
serio->write(serio, 0);
serio->write(serio, 0);
serio->write(serio, HIL_PKT_CMD >> 8);
serio->write(serio, HIL_CMD_RNM);
- down(&(kbd->sem));
+ down(&kbd->sem);
serio->write(serio, 0);
serio->write(serio, 0);
serio->write(serio, HIL_PKT_CMD >> 8);
serio->write(serio, HIL_CMD_EXD);
- down(&(kbd->sem));
+ down(&kbd->sem);
- up(&(kbd->sem));
+ up(&kbd->sem);
did = kbd->idd[0];
idd = kbd->idd + 1;
@@ -310,12 +320,11 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
goto bail2;
}
- if(HIL_IDD_NUM_BUTTONS(idd) || HIL_IDD_NUM_AXES_PER_SET(*idd)) {
+ if (HIL_IDD_NUM_BUTTONS(idd) || HIL_IDD_NUM_AXES_PER_SET(*idd)) {
printk(KERN_INFO PREFIX "keyboards only, no combo devices supported.\n");
goto bail2;
}
-
kbd->dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
kbd->dev->ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
kbd->dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
@@ -344,8 +353,8 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
serio->write(serio, 0);
serio->write(serio, HIL_PKT_CMD >> 8);
serio->write(serio, HIL_CMD_EK1); /* Enable Keyswitch Autorepeat 1 */
- down(&(kbd->sem));
- up(&(kbd->sem));
+ down(&kbd->sem);
+ up(&kbd->sem);
return 0;
bail2:
@@ -374,20 +383,20 @@ static struct serio_driver hil_kbd_serio_drv = {
},
.description = "HP HIL keyboard driver",
.id_table = hil_kbd_ids,
- .connect = hil_kbd_connect,
- .disconnect = hil_kbd_disconnect,
- .interrupt = hil_kbd_interrupt
+ .connect = hil_kbd_connect,
+ .disconnect = hil_kbd_disconnect,
+ .interrupt = hil_kbd_interrupt
};
static int __init hil_kbd_init(void)
{
return serio_register_driver(&hil_kbd_serio_drv);
}
-
+
static void __exit hil_kbd_exit(void)
{
serio_unregister_driver(&hil_kbd_serio_drv);
}
-
+
module_init(hil_kbd_init);
module_exit(hil_kbd_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 18:20:01 +0000