aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/dgnc/dgnc_driver.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/dgnc/dgnc_driver.c')
-rw-r--r--drivers/staging/dgnc/dgnc_driver.c75
1 files changed, 21 insertions, 54 deletions
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index f177d3a258c2..805dc617e3a7 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -11,22 +11,6 @@
* but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- * NOTE TO LINUX KERNEL HACKERS: DO NOT REFORMAT THIS CODE!
- *
- * This is shared code between Digi's CVS archive and the
- * Linux Kernel sources.
- * Changing the source just for reformatting needlessly breaks
- * our CVS diff history.
- *
- * Send any bug fixes/changes to: Eng.Linux at digi dot com.
- * Thank you.
- *
*/
@@ -37,7 +21,6 @@
#include <linux/sched.h>
#include "dgnc_driver.h"
#include "dgnc_pci.h"
-#include "dpacompat.h"
#include "dgnc_mgmt.h"
#include "dgnc_tty.h"
#include "dgnc_cls.h"
@@ -60,7 +43,8 @@ static void dgnc_init_globals(void);
static int dgnc_found_board(struct pci_dev *pdev, int id);
static void dgnc_cleanup_board(struct dgnc_board *brd);
static void dgnc_poll_handler(ulong dummy);
-static int dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
+static int dgnc_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent);
static void dgnc_do_remap(struct dgnc_board *brd);
/*
@@ -92,8 +76,8 @@ static struct class *dgnc_class;
* Poller stuff
*/
static DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */
-static ulong dgnc_poll_time; /* Time of next poll */
-static uint dgnc_poll_stop; /* Used to tell poller to stop */
+static ulong dgnc_poll_time; /* Time of next poll */
+static uint dgnc_poll_stop; /* Used to tell poller to stop */
static struct timer_list dgnc_poll_timer;
@@ -139,14 +123,6 @@ static struct pci_driver dgnc_driver = {
.id_table = dgnc_pci_tbl,
};
-
-char *dgnc_state_text[] = {
- "Board Failed",
- "Board Found",
- "Board READY",
-};
-
-
/************************************************************************
*
* Driver load/unload functions
@@ -214,7 +190,7 @@ static int __init dgnc_init_module(void)
* If something went wrong in the scan, bail out of driver.
*/
if (rc < 0) {
- /* Only unregister the pci driver if it was actually registered. */
+ /* Only unregister if it was actually registered. */
if (dgnc_NumBoards)
pci_unregister_driver(&dgnc_driver);
else
@@ -251,9 +227,9 @@ static int dgnc_start(void)
* Register management/dpa devices
*/
rc = register_chrdev(0, "dgnc", &dgnc_BoardFops);
- if (rc <= 0) {
+ if (rc < 0) {
pr_err(DRVSTR ": Can't register dgnc driver device (%d)\n", rc);
- return -ENXIO;
+ return rc;
}
dgnc_Major = rc;
@@ -285,9 +261,7 @@ static int dgnc_start(void)
/* Start the poller */
spin_lock_irqsave(&dgnc_poll_lock, flags);
- init_timer(&dgnc_poll_timer);
- dgnc_poll_timer.function = dgnc_poll_handler;
- dgnc_poll_timer.data = 0;
+ setup_timer(&dgnc_poll_timer, dgnc_poll_handler, 0);
dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
dgnc_poll_timer.expires = dgnc_poll_time;
spin_unlock_irqrestore(&dgnc_poll_lock, flags);
@@ -364,7 +338,7 @@ static void dgnc_cleanup_board(struct dgnc_board *brd)
spin_lock_irqsave(&dgnc_global_lock, flags);
brd->msgbuf = NULL;
- printk("%s", brd->msgbuf_head);
+ dev_dbg(&brd->pdev->dev, "%s\n", brd->msgbuf_head);
kfree(brd->msgbuf_head);
brd->msgbuf_head = NULL;
spin_unlock_irqrestore(&dgnc_global_lock, flags);
@@ -410,7 +384,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
return -ENOMEM;
/* make a temporary message buffer for the boot messages */
- brd->msgbuf_head = kzalloc(sizeof(u8) * 8192, GFP_KERNEL);
+ brd->msgbuf_head = kcalloc(8192, sizeof(u8), GFP_KERNEL);
brd->msgbuf = brd->msgbuf_head;
if (!brd->msgbuf) {
@@ -553,7 +527,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
if (brd->re_map_membase) {
- /* After remap is complete, we need to read and store the dvid */
+ /* Read and store the dvid after remapping */
brd->dvid = readb(brd->re_map_membase + 0x8D);
/* Get and store the board VPD, if it exists */
@@ -574,29 +548,19 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
rc = dgnc_tty_register(brd);
if (rc < 0) {
- dgnc_tty_uninit(brd);
pr_err(DRVSTR ": Can't register tty devices (%d)\n", rc);
- brd->state = BOARD_FAILED;
- brd->dpastatus = BD_NOFEP;
goto failed;
}
rc = dgnc_finalize_board_init(brd);
if (rc < 0) {
pr_err(DRVSTR ": Can't finalize board init (%d)\n", rc);
- brd->state = BOARD_FAILED;
- brd->dpastatus = BD_NOFEP;
-
goto failed;
}
rc = dgnc_tty_init(brd);
if (rc < 0) {
- dgnc_tty_uninit(brd);
pr_err(DRVSTR ": Can't init tty devices (%d)\n", rc);
- brd->state = BOARD_FAILED;
- brd->dpastatus = BD_NOFEP;
-
goto failed;
}
@@ -606,11 +570,13 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
dgnc_create_ports_sysfiles(brd);
/* init our poll helper tasklet */
- tasklet_init(&brd->helper_tasklet, brd->bd_ops->tasklet, (unsigned long) brd);
+ tasklet_init(&brd->helper_tasklet,
+ brd->bd_ops->tasklet,
+ (unsigned long) brd);
spin_lock_irqsave(&dgnc_global_lock, flags);
brd->msgbuf = NULL;
- printk("%s", brd->msgbuf_head);
+ dev_dbg(&brd->pdev->dev, "%s\n", brd->msgbuf_head);
kfree(brd->msgbuf_head);
brd->msgbuf_head = NULL;
spin_unlock_irqrestore(&dgnc_global_lock, flags);
@@ -628,6 +594,9 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
return 0;
failed:
+ dgnc_tty_uninit(brd);
+ brd->state = BOARD_FAILED;
+ brd->dpastatus = BD_NOFEP;
return -ENXIO;
@@ -708,7 +677,7 @@ static void dgnc_poll_handler(ulong dummy)
spin_lock_irqsave(&brd->bd_lock, flags);
- /* If board is in a failed state, don't bother scheduling a tasklet */
+ /* If board is in a failed state don't schedule a tasklet */
if (brd->state == BOARD_FAILED) {
spin_unlock_irqrestore(&brd->bd_lock, flags);
continue;
@@ -729,11 +698,9 @@ static void dgnc_poll_handler(ulong dummy)
new_time = dgnc_poll_time - jiffies;
if ((ulong) new_time >= 2 * dgnc_poll_tick)
- dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
+ dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
- init_timer(&dgnc_poll_timer);
- dgnc_poll_timer.function = dgnc_poll_handler;
- dgnc_poll_timer.data = 0;
+ setup_timer(&dgnc_poll_timer, dgnc_poll_handler, 0);
dgnc_poll_timer.expires = dgnc_poll_time;
spin_unlock_irqrestore(&dgnc_poll_lock, flags);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.