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authorJiri Slaby <jirislaby@gmail.com>2007-05-08 03:36:46 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 14:15:25 -0400
commit3046d50ea58676759453faeefccf57fbc9b72a90 (patch)
tree957a990822e43aa21c93aac0513734b658bbf308 /drivers/char/cyclades.c
parent31b4f0a118a7ade8444059ec898af8f07de206e9 (diff)
Char: cyclades, simplify variables initialization
- do not init static variables to 0 - simplify cy_init_card -- use memset(0) and do not zero each element separately, also reorder init, so that same entries are inited at one place Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/cyclades.c')
-rw-r--r--drivers/char/cyclades.c156
1 files changed, 44 insertions, 112 deletions
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 738903d707f7..9088c93895fd 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -718,8 +718,8 @@ static unsigned int cy_isa_addresses[] = {
718#define NR_ISA_ADDRS ARRAY_SIZE(cy_isa_addresses) 718#define NR_ISA_ADDRS ARRAY_SIZE(cy_isa_addresses)
719 719
720#ifdef MODULE 720#ifdef MODULE
721static long maddr[NR_CARDS] = { 0, }; 721static long maddr[NR_CARDS];
722static int irq[NR_CARDS] = { 0, }; 722static int irq[NR_CARDS];
723 723
724module_param_array(maddr, long, NULL, 0); 724module_param_array(maddr, long, NULL, 0);
725module_param_array(irq, int, NULL, 0); 725module_param_array(irq, int, NULL, 0);
@@ -4505,6 +4505,8 @@ static void __devinit cy_init_card(struct cyclades_card *cinfo,
4505 unsigned short chip_number; 4505 unsigned short chip_number;
4506 int index, port; 4506 int index, port;
4507 4507
4508 spin_lock_init(&cinfo->card_lock);
4509
4508 if (IS_CYC_Z(*cinfo)) { /* Cyclades-Z */ 4510 if (IS_CYC_Z(*cinfo)) { /* Cyclades-Z */
4509 mailbox = readl(&((struct RUNTIME_9060 __iomem *) 4511 mailbox = readl(&((struct RUNTIME_9060 __iomem *)
4510 cinfo->ctl_addr)->mail_box_0); 4512 cinfo->ctl_addr)->mail_box_0);
@@ -4512,104 +4514,47 @@ static void __devinit cy_init_card(struct cyclades_card *cinfo,
4512 cinfo->intr_enabled = 0; 4514 cinfo->intr_enabled = 0;
4513 cinfo->nports = 0; /* Will be correctly set later, after 4515 cinfo->nports = 0; /* Will be correctly set later, after
4514 Z FW is loaded */ 4516 Z FW is loaded */
4515 spin_lock_init(&cinfo->card_lock); 4517 } else {
4516 for (port = cinfo->first_line; 4518 index = cinfo->bus_index;
4517 port < cinfo->first_line + nports; port++) { 4519 nports = cinfo->nports = CyPORTS_PER_CHIP * cinfo->num_chips;
4518 info = &cy_port[port]; 4520 }
4519 info->magic = CYCLADES_MAGIC; 4521
4522 for (port = cinfo->first_line; port < cinfo->first_line + nports;
4523 port++) {
4524 info = &cy_port[port];
4525 memset(info, 0, sizeof(*info));
4526 info->magic = CYCLADES_MAGIC;
4527 info->card = board;
4528 info->line = port;
4529 info->flags = STD_COM_FLAGS;
4530 info->closing_wait = CLOSING_WAIT_DELAY;
4531 info->close_delay = 5 * HZ / 10;
4532
4533 INIT_WORK(&info->tqueue, do_softint);
4534 init_waitqueue_head(&info->open_wait);
4535 init_waitqueue_head(&info->close_wait);
4536 init_waitqueue_head(&info->shutdown_wait);
4537 init_waitqueue_head(&info->delta_msr_wait);
4538
4539 if (IS_CYC_Z(*cinfo)) {
4520 info->type = PORT_STARTECH; 4540 info->type = PORT_STARTECH;
4521 info->card = board;
4522 info->line = port;
4523 info->chip_rev = 0;
4524 info->flags = STD_COM_FLAGS;
4525 info->tty = NULL;
4526 if (mailbox == ZO_V1) 4541 if (mailbox == ZO_V1)
4527 info->xmit_fifo_size = CYZ_FIFO_SIZE; 4542 info->xmit_fifo_size = CYZ_FIFO_SIZE;
4528 else 4543 else
4529 info->xmit_fifo_size = 4544 info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE;
4530 4 * CYZ_FIFO_SIZE;
4531 info->cor1 = 0;
4532 info->cor2 = 0;
4533 info->cor3 = 0;
4534 info->cor4 = 0;
4535 info->cor5 = 0;
4536 info->tbpr = 0;
4537 info->tco = 0;
4538 info->rbpr = 0;
4539 info->rco = 0;
4540 info->custom_divisor = 0;
4541 info->close_delay = 5 * HZ / 10;
4542 info->closing_wait = CLOSING_WAIT_DELAY;
4543 info->icount.cts = info->icount.dsr =
4544 info->icount.rng = info->icount.dcd = 0;
4545 info->icount.rx = info->icount.tx = 0;
4546 info->icount.frame = info->icount.parity = 0;
4547 info->icount.overrun = info->icount.brk = 0;
4548 info->x_char = 0;
4549 info->event = 0;
4550 info->count = 0;
4551 info->blocked_open = 0;
4552 info->default_threshold = 0;
4553 info->default_timeout = 0;
4554 INIT_WORK(&info->tqueue, do_softint);
4555 init_waitqueue_head(&info->open_wait);
4556 init_waitqueue_head(&info->close_wait);
4557 init_waitqueue_head(&info->shutdown_wait);
4558 init_waitqueue_head(&info->delta_msr_wait);
4559 /* info->session */
4560 /* info->pgrp */
4561 info->read_status_mask = 0;
4562 /* info->timeout */
4563 /* Bentson's vars */
4564 info->jiffies[0] = 0;
4565 info->jiffies[1] = 0;
4566 info->jiffies[2] = 0;
4567 info->rflush_count = 0;
4568#ifdef CONFIG_CYZ_INTR 4545#ifdef CONFIG_CYZ_INTR
4569 init_timer(&cyz_rx_full_timer[port]); 4546 init_timer(&cyz_rx_full_timer[port]);
4570 cyz_rx_full_timer[port].function = NULL; 4547 cyz_rx_full_timer[port].function = NULL;
4571#endif 4548#endif
4572 } 4549 } else {
4573#ifndef CONFIG_CYZ_INTR
4574 if (!timer_pending(&cyz_timerlist)) {
4575 mod_timer(&cyz_timerlist, jiffies + 1);
4576#ifdef CY_PCI_DEBUG
4577 printk(KERN_DEBUG "Cyclades-Z polling initialized\n");
4578#endif
4579 }
4580#endif /* CONFIG_CYZ_INTR */
4581
4582 } else { /* Cyclom-Y of some kind */
4583 index = cinfo->bus_index;
4584 spin_lock_init(&cinfo->card_lock);
4585 cinfo->nports = CyPORTS_PER_CHIP * cinfo->num_chips;
4586 for (port = cinfo->first_line;
4587 port < cinfo->first_line + cinfo->nports; port++) {
4588 info = &cy_port[port];
4589 info->magic = CYCLADES_MAGIC;
4590 info->type = PORT_CIRRUS; 4550 info->type = PORT_CIRRUS;
4591 info->card = board;
4592 info->line = port;
4593 info->flags = STD_COM_FLAGS;
4594 info->tty = NULL;
4595 info->xmit_fifo_size = CyMAX_CHAR_FIFO; 4551 info->xmit_fifo_size = CyMAX_CHAR_FIFO;
4596 info->cor1 = 4552 info->cor1 = CyPARITY_NONE | Cy_1_STOP | Cy_8_BITS;
4597 CyPARITY_NONE | Cy_1_STOP | Cy_8_BITS;
4598 info->cor2 = CyETC; 4553 info->cor2 = CyETC;
4599 info->cor3 = 0x08; /* _very_ small rcv threshold */ 4554 info->cor3 = 0x08; /* _very_ small rcv threshold */
4600 info->cor4 = 0; 4555
4601 info->cor5 = 0;
4602 info->custom_divisor = 0;
4603 info->close_delay = 5 * HZ / 10;
4604 info->closing_wait = CLOSING_WAIT_DELAY;
4605 info->icount.cts = info->icount.dsr =
4606 info->icount.rng = info->icount.dcd = 0;
4607 info->icount.rx = info->icount.tx = 0;
4608 info->icount.frame = info->icount.parity = 0;
4609 info->icount.overrun = info->icount.brk = 0;
4610 chip_number = (port - cinfo->first_line) / 4; 4556 chip_number = (port - cinfo->first_line) / 4;
4611 if ((info->chip_rev = 4557 if ((info->chip_rev = readb(cinfo->base_addr +
4612 readb(cinfo->base_addr +
4613 (cy_chip_offset[chip_number] << 4558 (cy_chip_offset[chip_number] <<
4614 index) + (CyGFRCR << index))) >= 4559 index) + (CyGFRCR << index))) >=
4615 CD1400_REV_J) { 4560 CD1400_REV_J) {
@@ -4618,35 +4563,28 @@ static void __devinit cy_init_card(struct cyclades_card *cinfo,
4618 info->tco = baud_co_60[13]; /* Tx CO */ 4563 info->tco = baud_co_60[13]; /* Tx CO */
4619 info->rbpr = baud_bpr_60[13]; /* Rx BPR */ 4564 info->rbpr = baud_bpr_60[13]; /* Rx BPR */
4620 info->rco = baud_co_60[13]; /* Rx CO */ 4565 info->rco = baud_co_60[13]; /* Rx CO */
4621 info->rflow = 0;
4622 info->rtsdtr_inv = 1; 4566 info->rtsdtr_inv = 1;
4623 } else { 4567 } else {
4624 info->tbpr = baud_bpr_25[13]; /* Tx BPR */ 4568 info->tbpr = baud_bpr_25[13]; /* Tx BPR */
4625 info->tco = baud_co_25[13]; /* Tx CO */ 4569 info->tco = baud_co_25[13]; /* Tx CO */
4626 info->rbpr = baud_bpr_25[13]; /* Rx BPR */ 4570 info->rbpr = baud_bpr_25[13]; /* Rx BPR */
4627 info->rco = baud_co_25[13]; /* Rx CO */ 4571 info->rco = baud_co_25[13]; /* Rx CO */
4628 info->rflow = 0;
4629 info->rtsdtr_inv = 0; 4572 info->rtsdtr_inv = 0;
4630 } 4573 }
4631 info->x_char = 0; 4574 info->read_status_mask = CyTIMEOUT | CySPECHAR |
4632 info->event = 0; 4575 CyBREAK | CyPARITY | CyFRAME | CyOVERRUN;
4633 info->count = 0;
4634 info->blocked_open = 0;
4635 info->default_threshold = 0;
4636 info->default_timeout = 0;
4637 INIT_WORK(&info->tqueue, do_softint);
4638 init_waitqueue_head(&info->open_wait);
4639 init_waitqueue_head(&info->close_wait);
4640 init_waitqueue_head(&info->shutdown_wait);
4641 init_waitqueue_head(&info->delta_msr_wait);
4642 /* info->session */
4643 /* info->pgrp */
4644 info->read_status_mask =
4645 CyTIMEOUT | CySPECHAR | CyBREAK
4646 | CyPARITY | CyFRAME | CyOVERRUN;
4647 /* info->timeout */
4648 } 4576 }
4577
4649 } 4578 }
4579
4580#ifndef CONFIG_CYZ_INTR
4581 if (IS_CYC_Z(*cinfo) && !timer_pending(&cyz_timerlist)) {
4582 mod_timer(&cyz_timerlist, jiffies + 1);
4583#ifdef CY_PCI_DEBUG
4584 printk(KERN_DEBUG "Cyclades-Z polling initialized\n");
4585#endif
4586 }
4587#endif
4650} 4588}
4651 4589
4652/* initialize chips on Cyclom-Y card -- return number of valid 4590/* initialize chips on Cyclom-Y card -- return number of valid
@@ -5369,12 +5307,6 @@ static int __init cy_init(void)
5369 goto err_frtty; 5307 goto err_frtty;
5370 } 5308 }
5371 5309
5372 for (i = 0; i < NR_CARDS; i++) {
5373 /* base_addr=0 indicates board not found */
5374 cy_card[i].base_addr = NULL;
5375 }
5376
5377 /* invalidate remaining cy_port structures */
5378 for (i = 0; i < NR_PORTS; i++) { 5310 for (i = 0; i < NR_PORTS; i++) {
5379 cy_port[i].line = -1; 5311 cy_port[i].line = -1;
5380 cy_port[i].magic = -1; 5312 cy_port[i].magic = -1;
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