aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/can/mscan
diff options
context:
space:
mode:
authorWolfram Sang <w.sang@pengutronix.de>2009-11-16 07:57:45 -0500
committerDavid S. Miller <davem@davemloft.net>2009-11-17 06:54:00 -0500
commit0285e7ceaaec9ef2d2e74dd37e2b557c0e017b5c (patch)
tree8c0ec34c81f52b15cee294fdb576b1d674343a0d /drivers/net/can/mscan
parent622ed7e9cfa931cefc423562d414cb6cd0b08991 (diff)
net/can/mscan: trivial fixes
- remove whitespaces - use ! and ?: when apropriate - make braces consistent Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can/mscan')
-rw-r--r--drivers/net/can/mscan/mpc52xx_can.c16
-rw-r--r--drivers/net/can/mscan/mscan.c25
2 files changed, 18 insertions, 23 deletions
diff --git a/drivers/net/can/mscan/mpc52xx_can.c b/drivers/net/can/mscan/mpc52xx_can.c
index 4707a82f1ae0..34ae2baec5d1 100644
--- a/drivers/net/can/mscan/mpc52xx_can.c
+++ b/drivers/net/can/mscan/mpc52xx_can.c
@@ -34,7 +34,6 @@
34 34
35#include "mscan.h" 35#include "mscan.h"
36 36
37
38#define DRV_NAME "mpc5xxx_can" 37#define DRV_NAME "mpc5xxx_can"
39 38
40static struct of_device_id mpc52xx_cdm_ids[] __devinitdata = { 39static struct of_device_id mpc52xx_cdm_ids[] __devinitdata = {
@@ -71,15 +70,10 @@ static unsigned int __devinit mpc52xx_can_xtal_freq(struct of_device *of)
71 70
72 if (in_8(&cdm->ipb_clk_sel) & 0x1) 71 if (in_8(&cdm->ipb_clk_sel) & 0x1)
73 freq *= 2; 72 freq *= 2;
74 val = in_be32(&cdm->rstcfg); 73 val = in_be32(&cdm->rstcfg);
75 if (val & (1 << 5)) 74
76 freq *= 8; 75 freq *= (val & (1 << 5)) ? 8 : 4;
77 else 76 freq /= (val & (1 << 6)) ? 12 : 16;
78 freq *= 4;
79 if (val & (1 << 6))
80 freq /= 12;
81 else
82 freq /= 16;
83 77
84 iounmap(cdm); 78 iounmap(cdm);
85 79
@@ -222,7 +216,7 @@ static int mpc5xxx_can_resume(struct of_device *ofdev)
222 struct mscan_regs *regs = (struct mscan_regs *)priv->reg_base; 216 struct mscan_regs *regs = (struct mscan_regs *)priv->reg_base;
223 217
224 regs->canctl0 |= MSCAN_INITRQ; 218 regs->canctl0 |= MSCAN_INITRQ;
225 while ((regs->canctl1 & MSCAN_INITAK) == 0) 219 while (!(regs->canctl1 & MSCAN_INITAK))
226 udelay(10); 220 udelay(10);
227 221
228 regs->canctl1 = saved_regs.canctl1; 222 regs->canctl1 = saved_regs.canctl1;
diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c
index 2539ebe21bc4..6394de840427 100644
--- a/drivers/net/can/mscan/mscan.c
+++ b/drivers/net/can/mscan/mscan.c
@@ -69,7 +69,6 @@ static int mscan_set_mode(struct net_device *dev, u8 mode)
69 u8 canctl1; 69 u8 canctl1;
70 70
71 if (mode != MSCAN_NORMAL_MODE) { 71 if (mode != MSCAN_NORMAL_MODE) {
72
73 if (priv->tx_active) { 72 if (priv->tx_active) {
74 /* Abort transfers before going to sleep */# 73 /* Abort transfers before going to sleep */#
75 out_8(&regs->cantarq, priv->tx_active); 74 out_8(&regs->cantarq, priv->tx_active);
@@ -78,7 +77,7 @@ static int mscan_set_mode(struct net_device *dev, u8 mode)
78 } 77 }
79 78
80 canctl1 = in_8(&regs->canctl1); 79 canctl1 = in_8(&regs->canctl1);
81 if ((mode & MSCAN_SLPRQ) && (canctl1 & MSCAN_SLPAK) == 0) { 80 if ((mode & MSCAN_SLPRQ) && !(canctl1 & MSCAN_SLPAK)) {
82 out_8(&regs->canctl0, 81 out_8(&regs->canctl0,
83 in_8(&regs->canctl0) | MSCAN_SLPRQ); 82 in_8(&regs->canctl0) | MSCAN_SLPRQ);
84 for (i = 0; i < MSCAN_SET_MODE_RETRIES; i++) { 83 for (i = 0; i < MSCAN_SET_MODE_RETRIES; i++) {
@@ -105,7 +104,7 @@ static int mscan_set_mode(struct net_device *dev, u8 mode)
105 priv->can.state = CAN_STATE_SLEEPING; 104 priv->can.state = CAN_STATE_SLEEPING;
106 } 105 }
107 106
108 if ((mode & MSCAN_INITRQ) && (canctl1 & MSCAN_INITAK) == 0) { 107 if ((mode & MSCAN_INITRQ) && !(canctl1 & MSCAN_INITAK)) {
109 out_8(&regs->canctl0, 108 out_8(&regs->canctl0,
110 in_8(&regs->canctl0) | MSCAN_INITRQ); 109 in_8(&regs->canctl0) | MSCAN_INITRQ);
111 for (i = 0; i < MSCAN_SET_MODE_RETRIES; i++) { 110 for (i = 0; i < MSCAN_SET_MODE_RETRIES; i++) {
@@ -233,7 +232,8 @@ static netdev_tx_t mscan_start_xmit(struct sk_buff *skb, struct net_device *dev)
233 232
234 if (!rtr) { 233 if (!rtr) {
235 void __iomem *data = &regs->tx.dsr1_0; 234 void __iomem *data = &regs->tx.dsr1_0;
236 u16 *payload = (u16 *) frame->data; 235 u16 *payload = (u16 *)frame->data;
236
237 /* It is safe to write into dsr[dlc+1] */ 237 /* It is safe to write into dsr[dlc+1] */
238 for (i = 0; i < (frame->can_dlc + 1) / 2; i++) { 238 for (i = 0; i < (frame->can_dlc + 1) / 2; i++) {
239 out_be16(data, *payload++); 239 out_be16(data, *payload++);
@@ -300,7 +300,8 @@ static void mscan_get_rx_frame(struct net_device *dev, struct can_frame *frame)
300 300
301 if (!(frame->can_id & CAN_RTR_FLAG)) { 301 if (!(frame->can_id & CAN_RTR_FLAG)) {
302 void __iomem *data = &regs->rx.dsr1_0; 302 void __iomem *data = &regs->rx.dsr1_0;
303 u16 *payload = (u16 *) frame->data; 303 u16 *payload = (u16 *)frame->data;
304
304 for (i = 0; i < (frame->can_dlc + 1) / 2; i++) { 305 for (i = 0; i < (frame->can_dlc + 1) / 2; i++) {
305 *payload++ = in_be16(data); 306 *payload++ = in_be16(data);
306 data += 2 + _MSCAN_RESERVED_DSR_SIZE; 307 data += 2 + _MSCAN_RESERVED_DSR_SIZE;
@@ -326,8 +327,9 @@ static void mscan_get_err_frame(struct net_device *dev, struct can_frame *frame,
326 frame->data[1] = CAN_ERR_CRTL_RX_OVERFLOW; 327 frame->data[1] = CAN_ERR_CRTL_RX_OVERFLOW;
327 stats->rx_over_errors++; 328 stats->rx_over_errors++;
328 stats->rx_errors++; 329 stats->rx_errors++;
329 } else 330 } else {
330 frame->data[1] = 0; 331 frame->data[1] = 0;
332 }
331 333
332 old_state = check_set_state(dev, canrflg); 334 old_state = check_set_state(dev, canrflg);
333 /* State changed */ 335 /* State changed */
@@ -339,7 +341,6 @@ static void mscan_get_err_frame(struct net_device *dev, struct can_frame *frame,
339 if ((priv->shadow_statflg & MSCAN_RSTAT_MSK) < 341 if ((priv->shadow_statflg & MSCAN_RSTAT_MSK) <
340 (canrflg & MSCAN_RSTAT_MSK)) 342 (canrflg & MSCAN_RSTAT_MSK))
341 frame->data[1] |= CAN_ERR_CRTL_RX_WARNING; 343 frame->data[1] |= CAN_ERR_CRTL_RX_WARNING;
342
343 if ((priv->shadow_statflg & MSCAN_TSTAT_MSK) < 344 if ((priv->shadow_statflg & MSCAN_TSTAT_MSK) <
344 (canrflg & MSCAN_TSTAT_MSK)) 345 (canrflg & MSCAN_TSTAT_MSK))
345 frame->data[1] |= CAN_ERR_CRTL_TX_WARNING; 346 frame->data[1] |= CAN_ERR_CRTL_TX_WARNING;
@@ -397,7 +398,7 @@ static int mscan_rx_poll(struct napi_struct *napi, int quota)
397 398
398 if (canrflg & MSCAN_RXF) 399 if (canrflg & MSCAN_RXF)
399 mscan_get_rx_frame(dev, frame); 400 mscan_get_rx_frame(dev, frame);
400 else if (canrflg & MSCAN_ERR_IF) 401 else if (canrflg & MSCAN_ERR_IF)
401 mscan_get_err_frame(dev, frame, canrflg); 402 mscan_get_err_frame(dev, frame, canrflg);
402 403
403 stats->rx_packets++; 404 stats->rx_packets++;
@@ -429,7 +430,6 @@ static irqreturn_t mscan_isr(int irq, void *dev_id)
429 cantflg = in_8(&regs->cantflg) & cantier; 430 cantflg = in_8(&regs->cantflg) & cantier;
430 431
431 if (cantier && cantflg) { 432 if (cantier && cantflg) {
432
433 struct list_head *tmp, *pos; 433 struct list_head *tmp, *pos;
434 434
435 list_for_each_safe(pos, tmp, &priv->tx_head) { 435 list_for_each_safe(pos, tmp, &priv->tx_head) {
@@ -452,8 +452,9 @@ static irqreturn_t mscan_isr(int irq, void *dev_id)
452 clear_bit(F_TX_WAIT_ALL, &priv->flags); 452 clear_bit(F_TX_WAIT_ALL, &priv->flags);
453 clear_bit(F_TX_PROGRESS, &priv->flags); 453 clear_bit(F_TX_PROGRESS, &priv->flags);
454 priv->cur_pri = 0; 454 priv->cur_pri = 0;
455 } else 455 } else {
456 dev->trans_start = jiffies; 456 dev->trans_start = jiffies;
457 }
457 458
458 if (!test_bit(F_TX_WAIT_ALL, &priv->flags)) 459 if (!test_bit(F_TX_WAIT_ALL, &priv->flags))
459 netif_wake_queue(dev); 460 netif_wake_queue(dev);
@@ -470,15 +471,15 @@ static irqreturn_t mscan_isr(int irq, void *dev_id)
470 out_8(&regs->canrier, 0); 471 out_8(&regs->canrier, 0);
471 napi_schedule(&priv->napi); 472 napi_schedule(&priv->napi);
472 ret = IRQ_HANDLED; 473 ret = IRQ_HANDLED;
473 } else 474 } else {
474 clear_bit(F_RX_PROGRESS, &priv->flags); 475 clear_bit(F_RX_PROGRESS, &priv->flags);
476 }
475 } 477 }
476 return ret; 478 return ret;
477} 479}
478 480
479static int mscan_do_set_mode(struct net_device *dev, enum can_mode mode) 481static int mscan_do_set_mode(struct net_device *dev, enum can_mode mode)
480{ 482{
481
482 struct mscan_priv *priv = netdev_priv(dev); 483 struct mscan_priv *priv = netdev_priv(dev);
483 int ret = 0; 484 int ret = 0;
484 485