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path: root/drivers/staging/dgap/dgap_fep5.c
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Diffstat (limited to 'drivers/staging/dgap/dgap_fep5.c')
-rw-r--r--drivers/staging/dgap/dgap_fep5.c112
1 files changed, 51 insertions, 61 deletions
diff --git a/drivers/staging/dgap/dgap_fep5.c b/drivers/staging/dgap/dgap_fep5.c
index 794cf9db8b83..f75831a422e8 100644
--- a/drivers/staging/dgap/dgap_fep5.c
+++ b/drivers/staging/dgap/dgap_fep5.c
@@ -6,16 +6,6 @@
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * 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!
*
@@ -39,6 +29,7 @@
#include <asm/uaccess.h> /* For copy_from_user/copy_to_user */
#include <linux/tty.h>
#include <linux/tty_flip.h> /* For tty_schedule_flip */
+#include <linux/slab.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
#include <linux/sched.h>
@@ -75,7 +66,7 @@ void dgap_do_config_load(uchar __user *uaddr, int len)
char buf[U2BSIZE];
int n;
- to_addr = dgap_config_buf = dgap_driver_kzmalloc(len + 1, GFP_ATOMIC);
+ to_addr = dgap_config_buf = kzalloc(len + 1, GFP_ATOMIC);
if (!dgap_config_buf) {
DPR_INIT(("dgap_do_config_load - unable to allocate memory for file\n"));
dgap_driver_state = DRIVER_NEED_CONFIG_LOAD;
@@ -99,7 +90,7 @@ void dgap_do_config_load(uchar __user *uaddr, int len)
to_addr += n;
from_addr += n;
n = U2BSIZE;
- }
+ }
dgap_config_buf[orig_len] = '\0';
@@ -130,8 +121,8 @@ int dgap_after_config_loaded(void)
/*
* allocate flip buffer for board.
*/
- dgap_Board[i]->flipbuf = dgap_driver_kzmalloc(MYFLIPLEN, GFP_ATOMIC);
- dgap_Board[i]->flipflagbuf = dgap_driver_kzmalloc(MYFLIPLEN, GFP_ATOMIC);
+ dgap_Board[i]->flipbuf = kzalloc(MYFLIPLEN, GFP_ATOMIC);
+ dgap_Board[i]->flipflagbuf = kzalloc(MYFLIPLEN, GFP_ATOMIC);
}
return rc;
@@ -166,9 +157,9 @@ static int dgap_usertoboard(struct board_t *brd, char *to_addr, char __user *fro
/* increment counts */
len -= n;
to_addr += n;
- from_addr += n;
+ from_addr += n;
n = U2BSIZE;
- }
+ }
return 0;
}
@@ -195,7 +186,7 @@ void dgap_do_bios_load(struct board_t *brd, uchar __user *ubios, int len)
*/
for (i = 0; i < 16; i++)
writeb(0, addr + POSTAREA + i);
-
+
/*
* Download bios
*/
@@ -364,7 +355,7 @@ static void dgap_do_reset_board(struct board_t *brd)
int i = 0;
if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase || !brd->re_map_port) {
- DPR_INIT(("dgap_do_reset_board() start. bad values. brd: %p mem: %p io: %p\n",
+ DPR_INIT(("dgap_do_reset_board() start. bad values. brd: %p mem: %p io: %p\n",
brd, brd ? brd->re_map_membase : 0, brd ? brd->re_map_port : 0));
return;
}
@@ -470,7 +461,7 @@ static void dgap_get_vpd(struct board_t *brd)
/*
* To get to the OTPROM memory, we have to send the boards base
- * address or'ed with 1 into the PCI Rom Address location.
+ * address or'ed with 1 into the PCI Rom Address location.
*/
magic = brd->membase | 0x01;
pci_write_config_dword(brd->pdev, PCI_ROM_ADDRESS, magic);
@@ -492,7 +483,7 @@ static void dgap_get_vpd(struct board_t *brd)
* for the VPD offset.
*/
while (base_offset <= EXPANSION_ROM_SIZE) {
-
+
/*
* Lots of magic numbers here.
*
@@ -551,7 +542,7 @@ static void dgap_get_vpd(struct board_t *brd)
*/
void dgap_poll_tasklet(unsigned long data)
{
- struct board_t *bd = (struct board_t *) data;
+ struct board_t *bd = (struct board_t *) data;
ulong lock_flags;
ulong lock_flags2;
char *vaddr;
@@ -816,13 +807,13 @@ out:
*
*=======================================================================*/
void dgap_cmdb(struct channel_t *ch, uchar cmd, uchar byte1, uchar byte2, uint ncmds)
-{
+{
char *vaddr = NULL;
struct cm_t *cm_addr = NULL;
uint count;
uint n;
u16 head;
- u16 tail;
+ u16 tail;
if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
return;
@@ -833,7 +824,7 @@ void dgap_cmdb(struct channel_t *ch, uchar cmd, uchar byte1, uchar byte2, uint n
if (ch->ch_bd->state == BOARD_FAILED) {
DPR_CORE(("%s:%d board is in failed state.\n", __FILE__, __LINE__));
return;
- }
+ }
/*
* Make sure the pointers are in range before
@@ -847,13 +838,13 @@ void dgap_cmdb(struct channel_t *ch, uchar cmd, uchar byte1, uchar byte2, uint n
cm_addr = (struct cm_t *) (vaddr + CMDBUF);
head = readw(&(cm_addr->cm_head));
- /*
+ /*
* Forget it if pointers out of range.
*/
if (head >= (CMDMAX - CMDSTART) || (head & 03)) {
DPR_CORE(("%s:%d pointers out of range, failing board!\n", __FILE__, __LINE__));
ch->ch_bd->state = BOARD_FAILED;
- return;
+ return;
}
/*
@@ -869,7 +860,7 @@ void dgap_cmdb(struct channel_t *ch, uchar cmd, uchar byte1, uchar byte2, uint n
writew(head, &(cm_addr->cm_head));
/*
- * Wait if necessary before updating the head
+ * Wait if necessary before updating the head
* pointer to limit the number of outstanding
* commands to the FEP. If the time spent waiting
* is outlandish, declare the FEP dead.
@@ -890,14 +881,14 @@ void dgap_cmdb(struct channel_t *ch, uchar cmd, uchar byte1, uchar byte2, uint n
return;
}
udelay(10);
- }
+ }
}
/*=======================================================================
*
* dgap_cmdw - Sends a 1 word command to the FEP.
- *
+ *
* ch - Pointer to channel structure.
* cmd - Command to be sent.
* word - Integer containing word to be sent.
@@ -936,7 +927,7 @@ void dgap_cmdw(struct channel_t *ch, uchar cmd, u16 word, uint ncmds)
cm_addr = (struct cm_t *) (vaddr + CMDBUF);
head = readw(&(cm_addr->cm_head));
- /*
+ /*
* Forget it if pointers out of range.
*/
if (head >= (CMDMAX - CMDSTART) || (head & 03)) {
@@ -958,7 +949,7 @@ void dgap_cmdw(struct channel_t *ch, uchar cmd, u16 word, uint ncmds)
/*
* Wait if necessary before updating the head
- * pointer to limit the number of outstanding
+ * pointer to limit the number of outstanding
* commands to the FEP. If the time spent waiting
* is outlandish, declare the FEP dead.
*/
@@ -978,7 +969,7 @@ void dgap_cmdw(struct channel_t *ch, uchar cmd, u16 word, uint ncmds)
return;
}
udelay(10);
- }
+ }
}
@@ -986,7 +977,7 @@ void dgap_cmdw(struct channel_t *ch, uchar cmd, u16 word, uint ncmds)
/*=======================================================================
*
* dgap_cmdw_ext - Sends a extended word command to the FEP.
- *
+ *
* ch - Pointer to channel structure.
* cmd - Command to be sent.
* word - Integer containing word to be sent.
@@ -1025,7 +1016,7 @@ static void dgap_cmdw_ext(struct channel_t *ch, u16 cmd, u16 word, uint ncmds)
cm_addr = (struct cm_t *) (vaddr + CMDBUF);
head = readw(&(cm_addr->cm_head));
- /*
+ /*
* Forget it if pointers out of range.
*/
if (head >= (CMDMAX - CMDSTART) || (head & 03)) {
@@ -1060,7 +1051,7 @@ static void dgap_cmdw_ext(struct channel_t *ch, u16 cmd, u16 word, uint ncmds)
/*
* Wait if necessary before updating the head
- * pointer to limit the number of outstanding
+ * pointer to limit the number of outstanding
* commands to the FEP. If the time spent waiting
* is outlandish, declare the FEP dead.
*/
@@ -1080,7 +1071,7 @@ static void dgap_cmdw_ext(struct channel_t *ch, u16 cmd, u16 word, uint ncmds)
return;
}
udelay(10);
- }
+ }
}
@@ -1102,7 +1093,7 @@ void dgap_wmove(struct channel_t *ch, char *buf, uint cnt)
if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
return;
-
+
/*
* Check parameters.
*/
@@ -1172,9 +1163,9 @@ uint dgap_get_custom_baud(struct channel_t *ch)
/*
* Go get from fep mem, what the fep
- * believes the custom baud rate is.
+ * believes the custom baud rate is.
*/
- offset = ((((*(unsigned short *)(vaddr + ECS_SEG)) << 4) +
+ offset = ((((*(unsigned short *)(vaddr + ECS_SEG)) << 4) +
(ch->ch_portnum * 0x28) + LINE_SPEED));
value = readw(vaddr + offset);
@@ -1210,7 +1201,7 @@ void dgap_firmware_reset_port(struct channel_t *ch)
/*=======================================================================
- *
+ *
* dgap_param - Set Digi parameters.
*
* struct tty_struct * - TTY for port.
@@ -1244,7 +1235,7 @@ int dgap_param(struct tty_struct *tty)
if (!bd || bd->magic != DGAP_BOARD_MAGIC)
return -ENXIO;
- bs = ch->ch_bs;
+ bs = ch->ch_bs;
if (!bs)
return -ENXIO;
@@ -1284,13 +1275,13 @@ int dgap_param(struct tty_struct *tty)
/*
* Now go get from fep mem, what the fep
- * believes the custom baud rate is.
+ * believes the custom baud rate is.
*/
ch->ch_baud_info = ch->ch_custom_speed = dgap_get_custom_baud(ch);
DPR_PARAM(("param: Got %d speed\n", ch->ch_custom_speed));
- /* Handle transition from B0 */
+ /* Handle transition from B0 */
if (ch->ch_flags & CH_BAUD0) {
ch->ch_flags &= ~(CH_BAUD0);
ch->ch_mval |= (D_RTS(ch)|D_DTR(ch));
@@ -1352,7 +1343,7 @@ int dgap_param(struct tty_struct *tty)
baud = 0;
}
- if (baud == 0)
+ if (baud == 0)
baud = 9600;
ch->ch_baud_info = baud;
@@ -1425,7 +1416,7 @@ int dgap_param(struct tty_struct *tty)
dgap_cmdw(ch, SCFLAG, (u16) cflag, 0);
}
- /* Handle transition from B0 */
+ /* Handle transition from B0 */
if (ch->ch_flags & CH_BAUD0) {
ch->ch_flags &= ~(CH_BAUD0);
ch->ch_mval |= (D_RTS(ch)|D_DTR(ch));
@@ -1475,7 +1466,7 @@ int dgap_param(struct tty_struct *tty)
if (ch->ch_digi.digi_flags & RTSPACE)
hflow |= D_RTS(ch);
if (ch->ch_digi.digi_flags & DTRPACE)
- hflow |= D_DTR(ch);
+ hflow |= D_DTR(ch);
if (ch->ch_digi.digi_flags & CTSPACE)
hflow |= D_CTS(ch);
if (ch->ch_digi.digi_flags & DSRPACE)
@@ -1488,7 +1479,7 @@ int dgap_param(struct tty_struct *tty)
/* Okay to have channel and board locks held calling this */
dgap_cmdb(ch, SHFLOW, (uchar) hflow, 0xff, 0);
- }
+ }
/*
@@ -1507,7 +1498,7 @@ int dgap_param(struct tty_struct *tty)
}
/*
- * Set modem control lines.
+ * Set modem control lines.
*/
mval ^= ch->ch_mforce & (mval ^ ch->ch_mval);
@@ -1524,12 +1515,12 @@ int dgap_param(struct tty_struct *tty)
}
/*
- * Read modem signals, and then call carrier function.
+ * Read modem signals, and then call carrier function.
*/
ch->ch_mistat = readb(&(bs->m_stat));
dgap_carrier(ch);
- /*
+ /*
* Set the start and stop characters.
*/
if (ch->ch_startc != ch->ch_fepstartc || ch->ch_stopc != ch->ch_fepstopc) {
@@ -1542,7 +1533,7 @@ int dgap_param(struct tty_struct *tty)
/*
* Set the Auxiliary start and stop characters.
- */
+ */
if (ch->ch_astartc != ch->ch_fepastartc || ch->ch_astopc != ch->ch_fepastopc) {
ch->ch_fepastartc = ch->ch_astartc;
ch->ch_fepastopc = ch->ch_astopc;
@@ -1609,7 +1600,7 @@ void dgap_parity_scan(struct channel_t *ch, unsigned char *cbuf, unsigned char *
} else {
/* save value examination in next state */
ch->pscan_savechar = c;
- ch->pscan_state = 2;
+ ch->pscan_state = 2;
}
break;
@@ -1637,7 +1628,7 @@ void dgap_parity_scan(struct channel_t *ch, unsigned char *cbuf, unsigned char *
count += 1;
ch->pscan_state = 0;
- }
+ }
}
*len = count;
DPR_PSCAN(("dgap_parity_scan finish\n"));
@@ -1721,9 +1712,8 @@ static int dgap_event(struct board_t *bd)
/*
* Make sure the interrupt is valid.
*/
- if ( port >= bd->nasync) {
+ if (port >= bd->nasync)
goto next;
- }
if (!(reason & (IFMODEM | IFBREAK | IFTLW | IFTEM | IFDATA))) {
goto next;
@@ -1779,7 +1769,7 @@ static int dgap_event(struct board_t *bd)
}
/*
- * Process Modem change signals.
+ * Process Modem change signals.
*/
if (reason & IFMODEM) {
ch->ch_mistat = modem;
@@ -1813,7 +1803,7 @@ static int dgap_event(struct board_t *bd)
ch->ch_tun.un_flags &= ~UN_LOW;
if (ch->ch_tun.un_flags & UN_ISOPEN) {
- if ((ch->ch_tun.un_tty->flags &
+ if ((ch->ch_tun.un_tty->flags &
(1 << TTY_DO_WRITE_WAKEUP)) &&
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
ch->ch_tun.un_tty->ldisc->ops->write_wakeup)
@@ -1841,7 +1831,7 @@ static int dgap_event(struct board_t *bd)
if (ch->ch_pun.un_flags & UN_LOW) {
ch->ch_pun.un_flags &= ~UN_LOW;
if (ch->ch_pun.un_flags & UN_ISOPEN) {
- if ((ch->ch_pun.un_tty->flags &
+ if ((ch->ch_pun.un_tty->flags &
(1 << TTY_DO_WRITE_WAKEUP)) &&
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
ch->ch_pun.un_tty->ldisc->ops->write_wakeup)
@@ -1879,7 +1869,7 @@ static int dgap_event(struct board_t *bd)
if (ch->ch_tun.un_flags & UN_EMPTY) {
ch->ch_tun.un_flags &= ~UN_EMPTY;
if (ch->ch_tun.un_flags & UN_ISOPEN) {
- if ((ch->ch_tun.un_tty->flags &
+ if ((ch->ch_tun.un_tty->flags &
(1 << TTY_DO_WRITE_WAKEUP)) &&
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
ch->ch_tun.un_tty->ldisc->ops->write_wakeup)
@@ -1905,7 +1895,7 @@ static int dgap_event(struct board_t *bd)
if (ch->ch_pun.un_flags & UN_EMPTY) {
ch->ch_pun.un_flags &= ~UN_EMPTY;
if (ch->ch_pun.un_flags & UN_ISOPEN) {
- if ((ch->ch_pun.un_tty->flags &
+ if ((ch->ch_pun.un_tty->flags &
(1 << TTY_DO_WRITE_WAKEUP)) &&
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
ch->ch_pun.un_tty->ldisc->ops->write_wakeup)
@@ -1945,4 +1935,4 @@ next:
DGAP_UNLOCK(bd->bd_lock, lock_flags);
return 0;
-}
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.