mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-18 18:23:53 +08:00
riscom8: coding style
Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox
Linus Torvalds
parent
8e8bcf16c2
commit
9492e13516
@ -33,7 +33,7 @@
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#include <linux/module.h>
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#include <asm/io.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/ioport.h>
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@ -49,7 +49,7 @@
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#include <linux/tty_flip.h>
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#include <linux/spinlock.h>
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#include <asm/uaccess.h>
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#include <linux/uaccess.h>
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#include "riscom8.h"
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#include "riscom8_reg.h"
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@ -58,7 +58,7 @@
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#define RISCOM_PARANOIA_CHECK
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/*
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* Crazy InteliCom/8 boards sometimes has swapped CTS & DSR signals.
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* Crazy InteliCom/8 boards sometimes have swapped CTS & DSR signals.
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* You can slightly speed up things by #undefing the following option,
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* if you are REALLY sure that your board is correct one.
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*/
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@ -112,7 +112,7 @@ static unsigned short rc_ioport[] = {
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#define RC_NIOPORT ARRAY_SIZE(rc_ioport)
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static inline int rc_paranoia_check(struct riscom_port const * port,
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static int rc_paranoia_check(struct riscom_port const *port,
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char *name, const char *routine)
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{
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#ifdef RISCOM_PARANOIA_CHECK
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@ -158,7 +158,8 @@ static inline struct riscom_board * port_Board(struct riscom_port const * port)
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}
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/* Input Byte from CL CD180 register */
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static inline unsigned char rc_in(struct riscom_board const * bp, unsigned short reg)
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static inline unsigned char rc_in(struct riscom_board const *bp,
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unsigned short reg)
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{
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return inb(bp->base + RC_TO_ISA(reg));
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}
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@ -171,7 +172,7 @@ static inline void rc_out(struct riscom_board const * bp, unsigned short reg,
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}
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/* Wait for Channel Command Register ready */
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static inline void rc_wait_CCR(struct riscom_board const * bp)
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static void rc_wait_CCR(struct riscom_board const *bp)
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{
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unsigned long delay;
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@ -187,7 +188,7 @@ static inline void rc_wait_CCR(struct riscom_board const * bp)
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* RISCom/8 probe functions.
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*/
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static inline int rc_request_io_range(struct riscom_board * const bp)
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static int rc_request_io_range(struct riscom_board * const bp)
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{
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int i;
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@ -205,7 +206,7 @@ out_release:
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return 1;
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}
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static inline void rc_release_io_range(struct riscom_board * const bp)
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static void rc_release_io_range(struct riscom_board * const bp)
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{
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int i;
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@ -229,8 +230,8 @@ static void __init rc_init_CD180(struct riscom_board const * bp)
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rc_out(bp, CD180_GIVR, RC_ID); /* Set ID for this chip */
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rc_out(bp, CD180_GICR, 0); /* Clear all bits */
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rc_out(bp, CD180_PILR1, RC_ACK_MINT); /* Prio for modem intr */
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rc_out(bp, CD180_PILR2, RC_ACK_TINT); /* Prio for transmitter intr */
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rc_out(bp, CD180_PILR3, RC_ACK_RINT); /* Prio for receiver intr */
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rc_out(bp, CD180_PILR2, RC_ACK_TINT); /* Prio for tx intr */
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rc_out(bp, CD180_PILR3, RC_ACK_RINT); /* Prio for rx intr */
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/* Setting up prescaler. We need 4 ticks per 1 ms */
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rc_out(bp, CD180_PPRH, (RC_OSCFREQ/(1000000/RISCOM_TPS)) >> 8);
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@ -312,7 +313,7 @@ out_release:
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*
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*/
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static inline struct riscom_port * rc_get_port(struct riscom_board const * bp,
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static struct riscom_port *rc_get_port(struct riscom_board const *bp,
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unsigned char const *what)
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{
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unsigned char channel;
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@ -321,23 +322,23 @@ static inline struct riscom_port * rc_get_port(struct riscom_board const * bp,
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channel = rc_in(bp, CD180_GICR) >> GICR_CHAN_OFF;
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if (channel < CD180_NCH) {
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port = &rc_port[board_No(bp) * RC_NPORT + channel];
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if (port->flags & ASYNC_INITIALIZED) {
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if (port->flags & ASYNC_INITIALIZED)
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return port;
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}
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}
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printk(KERN_ERR "rc%d: %s interrupt from invalid port %d\n",
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board_No(bp), what, channel);
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return NULL;
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}
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static inline void rc_receive_exc(struct riscom_board const * bp)
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static void rc_receive_exc(struct riscom_board const *bp)
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{
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struct riscom_port *port;
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struct tty_struct *tty;
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unsigned char status;
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unsigned char ch, flag;
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if (!(port = rc_get_port(bp, "Receive")))
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port = rc_get_port(bp, "Receive");
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if (port == NULL)
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return;
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tty = port->tty;
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@ -351,9 +352,8 @@ static inline void rc_receive_exc(struct riscom_board const * bp)
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status = rc_in(bp, CD180_RCSR) & port->mark_mask;
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#endif
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ch = rc_in(bp, CD180_RDR);
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if (!status) {
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if (!status)
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return;
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}
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if (status & RCSR_TOUT) {
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printk(KERN_WARNING "rc%d: port %d: Receiver timeout. "
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"Hardware problems ?\n",
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@ -375,7 +375,6 @@ static inline void rc_receive_exc(struct riscom_board const * bp)
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else if (status & RCSR_OE)
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flag = TTY_OVERRUN;
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else
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flag = TTY_NORMAL;
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@ -383,13 +382,14 @@ static inline void rc_receive_exc(struct riscom_board const * bp)
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tty_flip_buffer_push(tty);
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}
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static inline void rc_receive(struct riscom_board const * bp)
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static void rc_receive(struct riscom_board const *bp)
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{
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struct riscom_port *port;
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struct tty_struct *tty;
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unsigned char count;
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if (!(port = rc_get_port(bp, "Receive")))
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port = rc_get_port(bp, "Receive");
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if (port == NULL)
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return;
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tty = port->tty;
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@ -412,14 +412,14 @@ static inline void rc_receive(struct riscom_board const * bp)
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tty_flip_buffer_push(tty);
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}
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static inline void rc_transmit(struct riscom_board const * bp)
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static void rc_transmit(struct riscom_board const *bp)
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{
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struct riscom_port *port;
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struct tty_struct *tty;
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unsigned char count;
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if (!(port = rc_get_port(bp, "Transmit")))
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port = rc_get_port(bp, "Transmit");
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if (port == NULL)
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return;
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tty = port->tty;
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@ -451,7 +451,8 @@ static inline void rc_transmit(struct riscom_board const * bp)
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rc_out(bp, CD180_TDR, CD180_C_ESC);
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rc_out(bp, CD180_TDR, CD180_C_DELAY);
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rc_out(bp, CD180_TDR, count);
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if (!(port->break_length -= count))
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port->break_length -= count;
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if (port->break_length == 0)
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port->break_length--;
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} else {
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rc_out(bp, CD180_TDR, CD180_C_ESC);
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@ -481,13 +482,14 @@ static inline void rc_transmit(struct riscom_board const * bp)
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tty_wakeup(tty);
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}
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static inline void rc_check_modem(struct riscom_board const * bp)
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static void rc_check_modem(struct riscom_board const *bp)
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{
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struct riscom_port *port;
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struct tty_struct *tty;
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unsigned char mcr;
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if (!(port = rc_get_port(bp, "Modem")))
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port = rc_get_port(bp, "Modem");
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if (port == NULL)
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return;
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tty = port->tty;
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@ -550,10 +552,8 @@ static irqreturn_t rc_interrupt(int dummy, void * dev_id)
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if (status & RC_BSR_TOUT)
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printk(KERN_WARNING "rc%d: Got timeout. Hardware "
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"error?\n", board_No(bp));
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else if (status & RC_BSR_RINT) {
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ack = rc_in(bp, RC_ACK_RINT);
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if (ack == (RC_ID | GIVR_IT_RCV))
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rc_receive(bp);
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else if (ack == (RC_ID | GIVR_IT_REXC))
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@ -562,29 +562,23 @@ static irqreturn_t rc_interrupt(int dummy, void * dev_id)
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printk(KERN_WARNING "rc%d: Bad receive ack "
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"0x%02x.\n",
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board_No(bp), ack);
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} else if (status & RC_BSR_TINT) {
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ack = rc_in(bp, RC_ACK_TINT);
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if (ack == (RC_ID | GIVR_IT_TX))
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rc_transmit(bp);
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else
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printk(KERN_WARNING "rc%d: Bad transmit ack "
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"0x%02x.\n",
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board_No(bp), ack);
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} else /* if (status & RC_BSR_MINT) */ {
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ack = rc_in(bp, RC_ACK_MINT);
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if (ack == (RC_ID | GIVR_IT_MODEM))
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rc_check_modem(bp);
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else
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printk(KERN_WARNING "rc%d: Bad modem ack "
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"0x%02x.\n",
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board_No(bp), ack);
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}
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rc_out(bp, CD180_EOIR, 0); /* Mark end of interrupt */
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rc_out(bp, RC_CTOUT, 0); /* Clear timeout flag */
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}
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@ -638,13 +632,13 @@ static void rc_shutdown_board(struct riscom_board *bp)
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*/
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static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port)
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{
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struct tty_struct *tty;
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struct tty_struct *tty = port->tty;
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unsigned long baud;
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long tmp;
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unsigned char cor1 = 0, cor3 = 0;
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unsigned char mcor1 = 0, mcor2 = 0;
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if (!(tty = port->tty) || !tty->termios)
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if (tty == NULL || tty->termios == NULL)
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return;
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port->IER = 0;
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@ -706,7 +700,6 @@ static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port)
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cor1 |= COR1_8BITS;
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break;
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}
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if (C_CSTOPB(tty))
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cor1 |= COR1_2SB;
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@ -738,7 +731,8 @@ static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port)
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port->IER |= IER_DSR | IER_CTS;
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mcor1 |= MCOR1_DSRZD | MCOR1_CTSZD;
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mcor2 |= MCOR2_DSROD | MCOR2_CTSOD;
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tty->hw_stopped = !(rc_in(bp, CD180_MSVR) & (MSVR_CTS|MSVR_DSR));
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tty->hw_stopped = !(rc_in(bp, CD180_MSVR) &
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(MSVR_CTS|MSVR_DSR));
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#else
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port->COR2 |= COR2_CTSAE;
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#endif
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@ -797,26 +791,20 @@ static int rc_setup_port(struct riscom_board *bp, struct riscom_port *port)
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if (!port->xmit_buf) {
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/* We may sleep in get_zeroed_page() */
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unsigned long tmp;
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if (!(tmp = get_zeroed_page(GFP_KERNEL)))
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unsigned long tmp = get_zeroed_page(GFP_KERNEL);
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if (tmp == 0)
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return -ENOMEM;
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if (port->xmit_buf) {
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if (port->xmit_buf)
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free_page(tmp);
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return -ERESTARTSYS;
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}
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else
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port->xmit_buf = (unsigned char *) tmp;
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}
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spin_lock_irqsave(&riscom_lock, flags);
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if (port->tty)
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clear_bit(TTY_IO_ERROR, &port->tty->flags);
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if (port->count == 1)
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bp->count++;
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port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
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rc_change_speed(bp, port);
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port->flags |= ASYNC_INITIALIZED;
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@ -843,9 +831,8 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
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printk(KERN_INFO "rc%d: port %d: FIFO hits [ ",
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board_No(bp), port_No(port));
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for (i = 0; i < 10; i++) {
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for (i = 0; i < 10; i++)
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printk("%ld ", port->hits[i]);
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}
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printk("].\n");
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}
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#endif
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@ -854,7 +841,9 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
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port->xmit_buf = NULL;
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}
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if (!(tty = port->tty) || C_HUPCL(tty)) {
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tty = port->tty;
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if (tty == NULL || C_HUPCL(tty)) {
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/* Drop DTR */
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bp->DTR |= (1u << port_No(port));
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rc_out(bp, RC_DTR, bp->DTR);
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@ -879,7 +868,6 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
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board_No(bp), bp->count);
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bp->count = 0;
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}
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/*
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* If this is the last opened port on the board
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* shutdown whole board
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@ -888,7 +876,6 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
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rc_shutdown_board(bp);
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}
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static int block_til_ready(struct tty_struct *tty, struct file *filp,
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struct riscom_port *port)
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{
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@ -999,20 +986,18 @@ static int rc_open(struct tty_struct * tty, struct file * filp)
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if (rc_paranoia_check(port, tty->name, "rc_open"))
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return -ENODEV;
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if ((error = rc_setup_board(bp)))
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error = rc_setup_board(bp);
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if (error)
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return error;
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port->count++;
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tty->driver_data = port;
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port->tty = tty;
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if ((error = rc_setup_port(bp, port)))
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error = rc_setup_port(bp, port);
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if (error == 0)
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error = block_til_ready(tty, filp, port);
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return error;
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if ((error = block_til_ready(tty, filp, port)))
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return error;
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return 0;
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}
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static void rc_flush_buffer(struct tty_struct *tty)
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@ -1024,15 +1009,12 @@ static void rc_flush_buffer(struct tty_struct *tty)
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return;
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spin_lock_irqsave(&riscom_lock, flags);
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port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
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spin_unlock_irqrestore(&riscom_lock, flags);
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tty_wakeup(tty);
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}
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static void rc_close(struct tty_struct *tty, struct file *filp)
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{
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struct riscom_port *port = (struct riscom_port *) tty->driver_data;
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@ -1102,9 +1084,8 @@ static void rc_close(struct tty_struct * tty, struct file * filp)
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tty->closing = 0;
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port->tty = NULL;
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if (port->blocked_open) {
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if (port->close_delay) {
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if (port->close_delay)
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msleep_interruptible(jiffies_to_msecs(port->close_delay));
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}
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wake_up_interruptible(&port->open_wait);
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}
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port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
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@ -1295,7 +1276,7 @@ static int rc_tiocmset(struct tty_struct *tty, struct file *file,
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return 0;
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}
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static inline void rc_send_break(struct riscom_port * port, unsigned long length)
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static void rc_send_break(struct riscom_port *port, unsigned long length)
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{
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struct riscom_board *bp = port_Board(port);
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unsigned long flags;
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@ -1315,7 +1296,7 @@ static inline void rc_send_break(struct riscom_port * port, unsigned long length
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spin_unlock_irqrestore(&riscom_lock, flags);
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}
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static inline int rc_set_serial_info(struct riscom_port * port,
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static int rc_set_serial_info(struct riscom_port *port,
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struct serial_struct __user *newinfo)
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{
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struct serial_struct tmp;
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@ -1363,7 +1344,7 @@ static inline int rc_set_serial_info(struct riscom_port * port,
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return 0;
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}
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static inline int rc_get_serial_info(struct riscom_port * port,
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static int rc_get_serial_info(struct riscom_port *port,
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struct serial_struct __user *retinfo)
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{
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struct serial_struct tmp;
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@ -1384,7 +1365,6 @@ static inline int rc_get_serial_info(struct riscom_port * port,
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static int rc_ioctl(struct tty_struct *tty, struct file *filp,
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unsigned int cmd, unsigned long arg)
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{
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struct riscom_port *port = (struct riscom_port *)tty->driver_data;
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void __user *argp = (void __user *)arg;
|
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@ -1433,11 +1413,9 @@ static void rc_throttle(struct tty_struct * tty)
|
||||
|
||||
if (rc_paranoia_check(port, tty->name, "rc_throttle"))
|
||||
return;
|
||||
|
||||
bp = port_Board(port);
|
||||
|
||||
spin_lock_irqsave(&riscom_lock, flags);
|
||||
|
||||
port->MSVR &= ~MSVR_RTS;
|
||||
rc_out(bp, CD180_CAR, port_No(port));
|
||||
if (I_IXOFF(tty)) {
|
||||
@ -1446,7 +1424,6 @@ static void rc_throttle(struct tty_struct * tty)
|
||||
rc_wait_CCR(bp);
|
||||
}
|
||||
rc_out(bp, CD180_MSVR, port->MSVR);
|
||||
|
||||
spin_unlock_irqrestore(&riscom_lock, flags);
|
||||
}
|
||||
|
||||
@ -1458,11 +1435,9 @@ static void rc_unthrottle(struct tty_struct * tty)
|
||||
|
||||
if (rc_paranoia_check(port, tty->name, "rc_unthrottle"))
|
||||
return;
|
||||
|
||||
bp = port_Board(port);
|
||||
|
||||
spin_lock_irqsave(&riscom_lock, flags);
|
||||
|
||||
port->MSVR |= MSVR_RTS;
|
||||
rc_out(bp, CD180_CAR, port_No(port));
|
||||
if (I_IXOFF(tty)) {
|
||||
@ -1471,7 +1446,6 @@ static void rc_unthrottle(struct tty_struct * tty)
|
||||
rc_wait_CCR(bp);
|
||||
}
|
||||
rc_out(bp, CD180_MSVR, port->MSVR);
|
||||
|
||||
spin_unlock_irqrestore(&riscom_lock, flags);
|
||||
}
|
||||
|
||||
@ -1487,11 +1461,9 @@ static void rc_stop(struct tty_struct * tty)
|
||||
bp = port_Board(port);
|
||||
|
||||
spin_lock_irqsave(&riscom_lock, flags);
|
||||
|
||||
port->IER &= ~IER_TXRDY;
|
||||
rc_out(bp, CD180_CAR, port_No(port));
|
||||
rc_out(bp, CD180_IER, port->IER);
|
||||
|
||||
spin_unlock_irqrestore(&riscom_lock, flags);
|
||||
}
|
||||
|
||||
@ -1513,7 +1485,6 @@ static void rc_start(struct tty_struct * tty)
|
||||
rc_out(bp, CD180_CAR, port_No(port));
|
||||
rc_out(bp, CD180_IER, port->IER);
|
||||
}
|
||||
|
||||
spin_unlock_irqrestore(&riscom_lock, flags);
|
||||
}
|
||||
|
||||
@ -1534,7 +1505,8 @@ static void rc_hangup(struct tty_struct * tty)
|
||||
wake_up_interruptible(&port->open_wait);
|
||||
}
|
||||
|
||||
static void rc_set_termios(struct tty_struct * tty, struct ktermios * old_termios)
|
||||
static void rc_set_termios(struct tty_struct *tty,
|
||||
struct ktermios *old_termios)
|
||||
{
|
||||
struct riscom_port *port = (struct riscom_port *)tty->driver_data;
|
||||
unsigned long flags;
|
||||
@ -1542,10 +1514,6 @@ static void rc_set_termios(struct tty_struct * tty, struct ktermios * old_termio
|
||||
if (rc_paranoia_check(port, tty->name, "rc_set_termios"))
|
||||
return;
|
||||
|
||||
if (tty->termios->c_cflag == old_termios->c_cflag &&
|
||||
tty->termios->c_iflag == old_termios->c_iflag)
|
||||
return;
|
||||
|
||||
spin_lock_irqsave(&riscom_lock, flags);
|
||||
rc_change_speed(port_Board(port), port);
|
||||
spin_unlock_irqrestore(&riscom_lock, flags);
|
||||
@ -1598,14 +1566,13 @@ static int __init rc_init_drivers(void)
|
||||
riscom_driver->init_termios.c_ospeed = 9600;
|
||||
riscom_driver->flags = TTY_DRIVER_REAL_RAW;
|
||||
tty_set_operations(riscom_driver, &riscom_ops);
|
||||
if ((error = tty_register_driver(riscom_driver))) {
|
||||
error = tty_register_driver(riscom_driver);
|
||||
if (error != 0) {
|
||||
put_tty_driver(riscom_driver);
|
||||
printk(KERN_ERR "rc: Couldn't register RISCom/8 driver, "
|
||||
"error = %d\n",
|
||||
error);
|
||||
"error = %d\n", error);
|
||||
return 1;
|
||||
}
|
||||
|
||||
memset(rc_port, 0, sizeof(rc_port));
|
||||
for (i = 0; i < RC_NPORT * RC_NBOARD; i++) {
|
||||
rc_port[i].magic = RISCOM8_MAGIC;
|
||||
@ -1614,7 +1581,6 @@ static int __init rc_init_drivers(void)
|
||||
init_waitqueue_head(&rc_port[i].open_wait);
|
||||
init_waitqueue_head(&rc_port[i].close_wait);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -1675,7 +1641,6 @@ static int __init riscom8_init(void)
|
||||
for (i = 0; i < RC_NBOARD; i++)
|
||||
if (rc_board[i].base && !rc_probe(&rc_board[i]))
|
||||
found++;
|
||||
|
||||
if (!found) {
|
||||
rc_release_drivers();
|
||||
printk(no_boards_msg);
|
||||
@ -1738,4 +1703,3 @@ static void __exit riscom8_exit_module (void)
|
||||
|
||||
module_init(riscom8_init_module);
|
||||
module_exit(riscom8_exit_module);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user