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path: root/drivers/parport/daisy.c
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Diffstat (limited to 'drivers/parport/daisy.c')
-rw-r--r--drivers/parport/daisy.c212
1 files changed, 106 insertions, 106 deletions
diff --git a/drivers/parport/daisy.c b/drivers/parport/daisy.c
index fd41e28101e..83ee095ec6e 100644
--- a/drivers/parport/daisy.c
+++ b/drivers/parport/daisy.c
@@ -30,7 +30,7 @@
#undef DEBUG
#ifdef DEBUG
-#define DPRINTK(stuff...) printk (stuff)
+#define DPRINTK(stuff...) printk(stuff)
#else
#define DPRINTK(stuff...)
#endif
@@ -46,16 +46,16 @@ static DEFINE_SPINLOCK(topology_lock);
static int numdevs = 0;
/* Forward-declaration of lower-level functions. */
-static int mux_present (struct parport *port);
-static int num_mux_ports (struct parport *port);
-static int select_port (struct parport *port);
-static int assign_addrs (struct parport *port);
+static int mux_present(struct parport *port);
+static int num_mux_ports(struct parport *port);
+static int select_port(struct parport *port);
+static int assign_addrs(struct parport *port);
/* Add a device to the discovered topology. */
-static void add_dev (int devnum, struct parport *port, int daisy)
+static void add_dev(int devnum, struct parport *port, int daisy)
{
struct daisydev *newdev, **p;
- newdev = kmalloc (sizeof (struct daisydev), GFP_KERNEL);
+ newdev = kmalloc(sizeof(struct daisydev), GFP_KERNEL);
if (newdev) {
newdev->port = port;
newdev->daisy = daisy;
@@ -70,9 +70,9 @@ static void add_dev (int devnum, struct parport *port, int daisy)
}
/* Clone a parport (actually, make an alias). */
-static struct parport *clone_parport (struct parport *real, int muxport)
+static struct parport *clone_parport(struct parport *real, int muxport)
{
- struct parport *extra = parport_register_port (real->base,
+ struct parport *extra = parport_register_port(real->base,
real->irq,
real->dma,
real->ops);
@@ -88,7 +88,7 @@ static struct parport *clone_parport (struct parport *real, int muxport)
/* Discover the IEEE1284.3 topology on a port -- muxes and daisy chains.
* Return value is number of devices actually detected. */
-int parport_daisy_init (struct parport *port)
+int parport_daisy_init(struct parport *port)
{
int detected = 0;
char *deviceid;
@@ -103,26 +103,26 @@ again:
/* If mux present on normal port, need to create new
* parports for each extra port. */
- if (port->muxport < 0 && mux_present (port) &&
+ if (port->muxport < 0 && mux_present(port) &&
/* don't be fooled: a mux must have 2 or 4 ports. */
- ((num_ports = num_mux_ports (port)) == 2 || num_ports == 4)) {
+ ((num_ports = num_mux_ports(port)) == 2 || num_ports == 4)) {
/* Leave original as port zero. */
port->muxport = 0;
- printk (KERN_INFO
+ printk(KERN_INFO
"%s: 1st (default) port of %d-way multiplexor\n",
port->name, num_ports);
for (i = 1; i < num_ports; i++) {
/* Clone the port. */
- struct parport *extra = clone_parport (port, i);
+ struct parport *extra = clone_parport(port, i);
if (!extra) {
- if (signal_pending (current))
+ if (signal_pending(current))
break;
- schedule ();
+ schedule();
continue;
}
- printk (KERN_INFO
+ printk(KERN_INFO
"%s: %d%s port of %d-way multiplexor on %s\n",
extra->name, i + 1, th[i + 1], num_ports,
port->name);
@@ -135,34 +135,34 @@ again:
}
if (port->muxport >= 0)
- select_port (port);
+ select_port(port);
- parport_daisy_deselect_all (port);
- detected += assign_addrs (port);
+ parport_daisy_deselect_all(port);
+ detected += assign_addrs(port);
/* Count the potential legacy device at the end. */
- add_dev (numdevs++, port, -1);
+ add_dev(numdevs++, port, -1);
/* Find out the legacy device's IEEE 1284 device ID. */
- deviceid = kmalloc (1024, GFP_KERNEL);
+ deviceid = kmalloc(1024, GFP_KERNEL);
if (deviceid) {
- if (parport_device_id (numdevs - 1, deviceid, 1024) > 2)
+ if (parport_device_id(numdevs - 1, deviceid, 1024) > 2)
detected++;
- kfree (deviceid);
+ kfree(deviceid);
}
if (!detected && !last_try) {
/* No devices were detected. Perhaps they are in some
funny state; let's try to reset them and see if
they wake up. */
- parport_daisy_fini (port);
- parport_write_control (port, PARPORT_CONTROL_SELECT);
- udelay (50);
- parport_write_control (port,
+ parport_daisy_fini(port);
+ parport_write_control(port, PARPORT_CONTROL_SELECT);
+ udelay(50);
+ parport_write_control(port,
PARPORT_CONTROL_SELECT |
PARPORT_CONTROL_INIT);
- udelay (50);
+ udelay(50);
last_try = 1;
goto again;
}
@@ -171,7 +171,7 @@ again:
}
/* Forget about devices on a physical port. */
-void parport_daisy_fini (struct parport *port)
+void parport_daisy_fini(struct parport *port)
{
struct daisydev **p;
@@ -214,7 +214,7 @@ void parport_daisy_fini (struct parport *port)
* for parport_register_device().
**/
-struct pardevice *parport_open (int devnum, const char *name,
+struct pardevice *parport_open(int devnum, const char *name,
int (*pf) (void *), void (*kf) (void *),
void (*irqf) (int, void *, struct pt_regs *),
int flags, void *handle)
@@ -237,7 +237,7 @@ struct pardevice *parport_open (int devnum, const char *name,
port = parport_get_port(p->port);
spin_unlock(&topology_lock);
- dev = parport_register_device (port, name, pf, kf,
+ dev = parport_register_device(port, name, pf, kf,
irqf, flags, handle);
parport_put_port(port);
if (!dev)
@@ -248,13 +248,13 @@ struct pardevice *parport_open (int devnum, const char *name,
/* Check that there really is a device to select. */
if (daisy >= 0) {
int selected;
- parport_claim_or_block (dev);
+ parport_claim_or_block(dev);
selected = port->daisy;
- parport_release (dev);
+ parport_release(dev);
if (selected != daisy) {
/* No corresponding device. */
- parport_unregister_device (dev);
+ parport_unregister_device(dev);
return NULL;
}
}
@@ -270,9 +270,9 @@ struct pardevice *parport_open (int devnum, const char *name,
* parport_register_device().
**/
-void parport_close (struct pardevice *dev)
+void parport_close(struct pardevice *dev)
{
- parport_unregister_device (dev);
+ parport_unregister_device(dev);
}
/**
@@ -287,7 +287,7 @@ void parport_close (struct pardevice *dev)
* exists.
**/
-int parport_device_num (int parport, int mux, int daisy)
+int parport_device_num(int parport, int mux, int daisy)
{
int res = -ENXIO;
struct daisydev *dev;
@@ -305,16 +305,16 @@ int parport_device_num (int parport, int mux, int daisy)
}
/* Send a daisy-chain-style CPP command packet. */
-static int cpp_daisy (struct parport *port, int cmd)
+static int cpp_daisy(struct parport *port, int cmd)
{
unsigned char s;
- parport_data_forward (port);
- parport_write_data (port, 0xaa); udelay (2);
- parport_write_data (port, 0x55); udelay (2);
- parport_write_data (port, 0x00); udelay (2);
- parport_write_data (port, 0xff); udelay (2);
- s = parport_read_status (port) & (PARPORT_STATUS_BUSY
+ parport_data_forward(port);
+ parport_write_data(port, 0xaa); udelay(2);
+ parport_write_data(port, 0x55); udelay(2);
+ parport_write_data(port, 0x00); udelay(2);
+ parport_write_data(port, 0xff); udelay(2);
+ s = parport_read_status(port) & (PARPORT_STATUS_BUSY
| PARPORT_STATUS_PAPEROUT
| PARPORT_STATUS_SELECT
| PARPORT_STATUS_ERROR);
@@ -322,54 +322,54 @@ static int cpp_daisy (struct parport *port, int cmd)
| PARPORT_STATUS_PAPEROUT
| PARPORT_STATUS_SELECT
| PARPORT_STATUS_ERROR)) {
- DPRINTK (KERN_DEBUG "%s: cpp_daisy: aa5500ff(%02x)\n",
+ DPRINTK(KERN_DEBUG "%s: cpp_daisy: aa5500ff(%02x)\n",
port->name, s);
return -ENXIO;
}
- parport_write_data (port, 0x87); udelay (2);
- s = parport_read_status (port) & (PARPORT_STATUS_BUSY
+ parport_write_data(port, 0x87); udelay(2);
+ s = parport_read_status(port) & (PARPORT_STATUS_BUSY
| PARPORT_STATUS_PAPEROUT
| PARPORT_STATUS_SELECT
| PARPORT_STATUS_ERROR);
if (s != (PARPORT_STATUS_SELECT | PARPORT_STATUS_ERROR)) {
- DPRINTK (KERN_DEBUG "%s: cpp_daisy: aa5500ff87(%02x)\n",
+ DPRINTK(KERN_DEBUG "%s: cpp_daisy: aa5500ff87(%02x)\n",
port->name, s);
return -ENXIO;
}
- parport_write_data (port, 0x78); udelay (2);
- parport_write_data (port, cmd); udelay (2);
- parport_frob_control (port,
+ parport_write_data(port, 0x78); udelay(2);
+ parport_write_data(port, cmd); udelay(2);
+ parport_frob_control(port,
PARPORT_CONTROL_STROBE,
PARPORT_CONTROL_STROBE);
- udelay (1);
- s = parport_read_status (port);
- parport_frob_control (port, PARPORT_CONTROL_STROBE, 0);
- udelay (1);
- parport_write_data (port, 0xff); udelay (2);
+ udelay(1);
+ s = parport_read_status(port);
+ parport_frob_control(port, PARPORT_CONTROL_STROBE, 0);
+ udelay(1);
+ parport_write_data(port, 0xff); udelay(2);
return s;
}
/* Send a mux-style CPP command packet. */
-static int cpp_mux (struct parport *port, int cmd)
+static int cpp_mux(struct parport *port, int cmd)
{
unsigned char s;
int rc;
- parport_data_forward (port);
- parport_write_data (port, 0xaa); udelay (2);
- parport_write_data (port, 0x55); udelay (2);
- parport_write_data (port, 0xf0); udelay (2);
- parport_write_data (port, 0x0f); udelay (2);
- parport_write_data (port, 0x52); udelay (2);
- parport_write_data (port, 0xad); udelay (2);
- parport_write_data (port, cmd); udelay (2);
+ parport_data_forward(port);
+ parport_write_data(port, 0xaa); udelay(2);
+ parport_write_data(port, 0x55); udelay(2);
+ parport_write_data(port, 0xf0); udelay(2);
+ parport_write_data(port, 0x0f); udelay(2);
+ parport_write_data(port, 0x52); udelay(2);
+ parport_write_data(port, 0xad); udelay(2);
+ parport_write_data(port, cmd); udelay(2);
- s = parport_read_status (port);
+ s = parport_read_status(port);
if (!(s & PARPORT_STATUS_ACK)) {
- DPRINTK (KERN_DEBUG "%s: cpp_mux: aa55f00f52ad%02x(%02x)\n",
+ DPRINTK(KERN_DEBUG "%s: cpp_mux: aa55f00f52ad%02x(%02x)\n",
port->name, cmd, s);
return -EIO;
}
@@ -382,12 +382,12 @@ static int cpp_mux (struct parport *port, int cmd)
return rc;
}
-void parport_daisy_deselect_all (struct parport *port)
+void parport_daisy_deselect_all(struct parport *port)
{
- cpp_daisy (port, 0x30);
+ cpp_daisy(port, 0x30);
}
-int parport_daisy_select (struct parport *port, int daisy, int mode)
+int parport_daisy_select(struct parport *port, int daisy, int mode)
{
switch (mode)
{
@@ -395,14 +395,14 @@ int parport_daisy_select (struct parport *port, int daisy, int mode)
case IEEE1284_MODE_EPP:
case IEEE1284_MODE_EPPSL:
case IEEE1284_MODE_EPPSWE:
- return !(cpp_daisy (port, 0x20 + daisy) &
+ return !(cpp_daisy(port, 0x20 + daisy) &
PARPORT_STATUS_ERROR);
// For these modes we should switch to ECP mode:
case IEEE1284_MODE_ECP:
case IEEE1284_MODE_ECPRLE:
case IEEE1284_MODE_ECPSWE:
- return !(cpp_daisy (port, 0xd0 + daisy) &
+ return !(cpp_daisy(port, 0xd0 + daisy) &
PARPORT_STATUS_ERROR);
// Nothing was told for BECP in Daisy chain specification.
@@ -413,28 +413,28 @@ int parport_daisy_select (struct parport *port, int daisy, int mode)
case IEEE1284_MODE_BYTE:
case IEEE1284_MODE_COMPAT:
default:
- return !(cpp_daisy (port, 0xe0 + daisy) &
+ return !(cpp_daisy(port, 0xe0 + daisy) &
PARPORT_STATUS_ERROR);
}
}
-static int mux_present (struct parport *port)
+static int mux_present(struct parport *port)
{
- return cpp_mux (port, 0x51) == 3;
+ return cpp_mux(port, 0x51) == 3;
}
-static int num_mux_ports (struct parport *port)
+static int num_mux_ports(struct parport *port)
{
- return cpp_mux (port, 0x58);
+ return cpp_mux(port, 0x58);
}
-static int select_port (struct parport *port)
+static int select_port(struct parport *port)
{
int muxport = port->muxport;
- return cpp_mux (port, 0x60 + muxport) == muxport;
+ return cpp_mux(port, 0x60 + muxport) == muxport;
}
-static int assign_addrs (struct parport *port)
+static int assign_addrs(struct parport *port)
{
unsigned char s;
unsigned char daisy;
@@ -442,12 +442,12 @@ static int assign_addrs (struct parport *port)
int detected;
char *deviceid;
- parport_data_forward (port);
- parport_write_data (port, 0xaa); udelay (2);
- parport_write_data (port, 0x55); udelay (2);
- parport_write_data (port, 0x00); udelay (2);
- parport_write_data (port, 0xff); udelay (2);
- s = parport_read_status (port) & (PARPORT_STATUS_BUSY
+ parport_data_forward(port);
+ parport_write_data(port, 0xaa); udelay(2);
+ parport_write_data(port, 0x55); udelay(2);
+ parport_write_data(port, 0x00); udelay(2);
+ parport_write_data(port, 0xff); udelay(2);
+ s = parport_read_status(port) & (PARPORT_STATUS_BUSY
| PARPORT_STATUS_PAPEROUT
| PARPORT_STATUS_SELECT
| PARPORT_STATUS_ERROR);
@@ -455,40 +455,40 @@ static int assign_addrs (struct parport *port)
| PARPORT_STATUS_PAPEROUT
| PARPORT_STATUS_SELECT
| PARPORT_STATUS_ERROR)) {
- DPRINTK (KERN_DEBUG "%s: assign_addrs: aa5500ff(%02x)\n",
+ DPRINTK(KERN_DEBUG "%s: assign_addrs: aa5500ff(%02x)\n",
port->name, s);
return 0;
}
- parport_write_data (port, 0x87); udelay (2);
- s = parport_read_status (port) & (PARPORT_STATUS_BUSY
+ parport_write_data(port, 0x87); udelay(2);
+ s = parport_read_status(port) & (PARPORT_STATUS_BUSY
| PARPORT_STATUS_PAPEROUT
| PARPORT_STATUS_SELECT
| PARPORT_STATUS_ERROR);
if (s != (PARPORT_STATUS_SELECT | PARPORT_STATUS_ERROR)) {
- DPRINTK (KERN_DEBUG "%s: assign_addrs: aa5500ff87(%02x)\n",
+ DPRINTK(KERN_DEBUG "%s: assign_addrs: aa5500ff87(%02x)\n",
port->name, s);
return 0;
}
- parport_write_data (port, 0x78); udelay (2);
- s = parport_read_status (port);
+ parport_write_data(port, 0x78); udelay(2);
+ s = parport_read_status(port);
for (daisy = 0;
(s & (PARPORT_STATUS_PAPEROUT|PARPORT_STATUS_SELECT))
== (PARPORT_STATUS_PAPEROUT|PARPORT_STATUS_SELECT)
&& daisy < 4;
++daisy) {
- parport_write_data (port, daisy);
- udelay (2);
- parport_frob_control (port,
+ parport_write_data(port, daisy);
+ udelay(2);
+ parport_frob_control(port,
PARPORT_CONTROL_STROBE,
PARPORT_CONTROL_STROBE);
- udelay (1);
- parport_frob_control (port, PARPORT_CONTROL_STROBE, 0);
- udelay (1);
+ udelay(1);
+ parport_frob_control(port, PARPORT_CONTROL_STROBE, 0);
+ udelay(1);
- add_dev (numdevs++, port, daisy);
+ add_dev(numdevs++, port, daisy);
/* See if this device thought it was the last in the
* chain. */
@@ -499,21 +499,21 @@ static int assign_addrs (struct parport *port)
last_dev from next device or if last_dev does not
work status lines from some non-daisy chain
device. */
- s = parport_read_status (port);
+ s = parport_read_status(port);
}
- parport_write_data (port, 0xff); udelay (2);
+ parport_write_data(port, 0xff); udelay(2);
detected = numdevs - thisdev;
- DPRINTK (KERN_DEBUG "%s: Found %d daisy-chained devices\n", port->name,
+ DPRINTK(KERN_DEBUG "%s: Found %d daisy-chained devices\n", port->name,
detected);
/* Ask the new devices to introduce themselves. */
- deviceid = kmalloc (1024, GFP_KERNEL);
+ deviceid = kmalloc(1024, GFP_KERNEL);
if (!deviceid) return 0;
for (daisy = 0; thisdev < numdevs; thisdev++, daisy++)
- parport_device_id (thisdev, deviceid, 1024);
+ parport_device_id(thisdev, deviceid, 1024);
- kfree (deviceid);
+ kfree(deviceid);
return detected;
}