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author | Oliver Hartkopp <socketcan@hartkopp.net> | 2013-04-13 21:35:49 +0200 |
---|---|---|
committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-04-16 12:39:14 +0200 |
commit | 06e1d1d71876c75bf4a9d3b310c1b4df34e8be69 (patch) | |
tree | 0f2a63b251e240c86500051d961a931f2b0752bc /drivers/net/can/sja1000/sja1000.c | |
parent | Merge branch 'sync_multiple' (diff) | |
download | linux-06e1d1d71876c75bf4a9d3b310c1b4df34e8be69.tar.xz linux-06e1d1d71876c75bf4a9d3b310c1b4df34e8be69.zip |
can: sja1000: use common prefix for all sja1000 defines
This is a follow up patch to:
f901b6b can: sja1000: fix define conflict on SH
That patch fixed a define conflict between the SH architecture and the sja1000
driver, by addind a prefix to one macro only. This patch consistently renames
the prefix of the SJA1000 controller registers from "REG_" to "SJA1000_".
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/sja1000/sja1000.c')
-rw-r--r-- | drivers/net/can/sja1000/sja1000.c | 126 |
1 files changed, 64 insertions, 62 deletions
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index e4df307eaa90..7164a999f50f 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -91,14 +91,14 @@ static void sja1000_write_cmdreg(struct sja1000_priv *priv, u8 val) * the write_reg() operation - especially on SMP systems. */ spin_lock_irqsave(&priv->cmdreg_lock, flags); - priv->write_reg(priv, REG_CMR, val); - priv->read_reg(priv, SJA1000_REG_SR); + priv->write_reg(priv, SJA1000_CMR, val); + priv->read_reg(priv, SJA1000_SR); spin_unlock_irqrestore(&priv->cmdreg_lock, flags); } static int sja1000_is_absent(struct sja1000_priv *priv) { - return (priv->read_reg(priv, REG_MOD) == 0xFF); + return (priv->read_reg(priv, SJA1000_MOD) == 0xFF); } static int sja1000_probe_chip(struct net_device *dev) @@ -116,11 +116,11 @@ static int sja1000_probe_chip(struct net_device *dev) static void set_reset_mode(struct net_device *dev) { struct sja1000_priv *priv = netdev_priv(dev); - unsigned char status = priv->read_reg(priv, REG_MOD); + unsigned char status = priv->read_reg(priv, SJA1000_MOD); int i; /* disable interrupts */ - priv->write_reg(priv, REG_IER, IRQ_OFF); + priv->write_reg(priv, SJA1000_IER, IRQ_OFF); for (i = 0; i < 100; i++) { /* check reset bit */ @@ -129,9 +129,10 @@ static void set_reset_mode(struct net_device *dev) return; } - priv->write_reg(priv, REG_MOD, MOD_RM); /* reset chip */ + /* reset chip */ + priv->write_reg(priv, SJA1000_MOD, MOD_RM); udelay(10); - status = priv->read_reg(priv, REG_MOD); + status = priv->read_reg(priv, SJA1000_MOD); } netdev_err(dev, "setting SJA1000 into reset mode failed!\n"); @@ -140,7 +141,7 @@ static void set_reset_mode(struct net_device *dev) static void set_normal_mode(struct net_device *dev) { struct sja1000_priv *priv = netdev_priv(dev); - unsigned char status = priv->read_reg(priv, REG_MOD); + unsigned char status = priv->read_reg(priv, SJA1000_MOD); int i; for (i = 0; i < 100; i++) { @@ -149,22 +150,22 @@ static void set_normal_mode(struct net_device *dev) priv->can.state = CAN_STATE_ERROR_ACTIVE; /* enable interrupts */ if (priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING) - priv->write_reg(priv, REG_IER, IRQ_ALL); + priv->write_reg(priv, SJA1000_IER, IRQ_ALL); else - priv->write_reg(priv, REG_IER, + priv->write_reg(priv, SJA1000_IER, IRQ_ALL & ~IRQ_BEI); return; } /* set chip to normal mode */ if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) - priv->write_reg(priv, REG_MOD, MOD_LOM); + priv->write_reg(priv, SJA1000_MOD, MOD_LOM); else - priv->write_reg(priv, REG_MOD, 0x00); + priv->write_reg(priv, SJA1000_MOD, 0x00); udelay(10); - status = priv->read_reg(priv, REG_MOD); + status = priv->read_reg(priv, SJA1000_MOD); } netdev_err(dev, "setting SJA1000 into normal mode failed!\n"); @@ -179,9 +180,9 @@ static void sja1000_start(struct net_device *dev) set_reset_mode(dev); /* Clear error counters and error code capture */ - priv->write_reg(priv, REG_TXERR, 0x0); - priv->write_reg(priv, REG_RXERR, 0x0); - priv->read_reg(priv, REG_ECC); + priv->write_reg(priv, SJA1000_TXERR, 0x0); + priv->write_reg(priv, SJA1000_RXERR, 0x0); + priv->read_reg(priv, SJA1000_ECC); /* leave reset mode */ set_normal_mode(dev); @@ -217,8 +218,8 @@ static int sja1000_set_bittiming(struct net_device *dev) netdev_info(dev, "setting BTR0=0x%02x BTR1=0x%02x\n", btr0, btr1); - priv->write_reg(priv, REG_BTR0, btr0); - priv->write_reg(priv, REG_BTR1, btr1); + priv->write_reg(priv, SJA1000_BTR0, btr0); + priv->write_reg(priv, SJA1000_BTR1, btr1); return 0; } @@ -228,8 +229,8 @@ static int sja1000_get_berr_counter(const struct net_device *dev, { struct sja1000_priv *priv = netdev_priv(dev); - bec->txerr = priv->read_reg(priv, REG_TXERR); - bec->rxerr = priv->read_reg(priv, REG_RXERR); + bec->txerr = priv->read_reg(priv, SJA1000_TXERR); + bec->rxerr = priv->read_reg(priv, SJA1000_RXERR); return 0; } @@ -247,20 +248,20 @@ static void chipset_init(struct net_device *dev) struct sja1000_priv *priv = netdev_priv(dev); /* set clock divider and output control register */ - priv->write_reg(priv, REG_CDR, priv->cdr | CDR_PELICAN); + priv->write_reg(priv, SJA1000_CDR, priv->cdr | CDR_PELICAN); /* set acceptance filter (accept all) */ - priv->write_reg(priv, REG_ACCC0, 0x00); - priv->write_reg(priv, REG_ACCC1, 0x00); - priv->write_reg(priv, REG_ACCC2, 0x00); - priv->write_reg(priv, REG_ACCC3, 0x00); + priv->write_reg(priv, SJA1000_ACCC0, 0x00); + priv->write_reg(priv, SJA1000_ACCC1, 0x00); + priv->write_reg(priv, SJA1000_ACCC2, 0x00); + priv->write_reg(priv, SJA1000_ACCC3, 0x00); - priv->write_reg(priv, REG_ACCM0, 0xFF); - priv->write_reg(priv, REG_ACCM1, 0xFF); - priv->write_reg(priv, REG_ACCM2, 0xFF); - priv->write_reg(priv, REG_ACCM3, 0xFF); + priv->write_reg(priv, SJA1000_ACCM0, 0xFF); + priv->write_reg(priv, SJA1000_ACCM1, 0xFF); + priv->write_reg(priv, SJA1000_ACCM2, 0xFF); + priv->write_reg(priv, SJA1000_ACCM3, 0xFF); - priv->write_reg(priv, REG_OCR, priv->ocr | OCR_MODE_NORMAL); + priv->write_reg(priv, SJA1000_OCR, priv->ocr | OCR_MODE_NORMAL); } /* @@ -289,21 +290,21 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb, id = cf->can_id; if (id & CAN_RTR_FLAG) - fi |= FI_RTR; + fi |= SJA1000_FI_RTR; if (id & CAN_EFF_FLAG) { - fi |= FI_FF; - dreg = EFF_BUF; - priv->write_reg(priv, REG_FI, fi); - priv->write_reg(priv, REG_ID1, (id & 0x1fe00000) >> (5 + 16)); - priv->write_reg(priv, REG_ID2, (id & 0x001fe000) >> (5 + 8)); - priv->write_reg(priv, REG_ID3, (id & 0x00001fe0) >> 5); - priv->write_reg(priv, REG_ID4, (id & 0x0000001f) << 3); + fi |= SJA1000_FI_FF; + dreg = SJA1000_EFF_BUF; + priv->write_reg(priv, SJA1000_FI, fi); + priv->write_reg(priv, SJA1000_ID1, (id & 0x1fe00000) >> 21); + priv->write_reg(priv, SJA1000_ID2, (id & 0x001fe000) >> 13); + priv->write_reg(priv, SJA1000_ID3, (id & 0x00001fe0) >> 5); + priv->write_reg(priv, SJA1000_ID4, (id & 0x0000001f) << 3); } else { - dreg = SFF_BUF; - priv->write_reg(priv, REG_FI, fi); - priv->write_reg(priv, REG_ID1, (id & 0x000007f8) >> 3); - priv->write_reg(priv, REG_ID2, (id & 0x00000007) << 5); + dreg = SJA1000_SFF_BUF; + priv->write_reg(priv, SJA1000_FI, fi); + priv->write_reg(priv, SJA1000_ID1, (id & 0x000007f8) >> 3); + priv->write_reg(priv, SJA1000_ID2, (id & 0x00000007) << 5); } for (i = 0; i < dlc; i++) @@ -335,25 +336,25 @@ static void sja1000_rx(struct net_device *dev) if (skb == NULL) return; - fi = priv->read_reg(priv, REG_FI); + fi = priv->read_reg(priv, SJA1000_FI); - if (fi & FI_FF) { + if (fi & SJA1000_FI_FF) { /* extended frame format (EFF) */ - dreg = EFF_BUF; - id = (priv->read_reg(priv, REG_ID1) << (5 + 16)) - | (priv->read_reg(priv, REG_ID2) << (5 + 8)) - | (priv->read_reg(priv, REG_ID3) << 5) - | (priv->read_reg(priv, REG_ID4) >> 3); + dreg = SJA1000_EFF_BUF; + id = (priv->read_reg(priv, SJA1000_ID1) << 21) + | (priv->read_reg(priv, SJA1000_ID2) << 13) + | (priv->read_reg(priv, SJA1000_ID3) << 5) + | (priv->read_reg(priv, SJA1000_ID4) >> 3); id |= CAN_EFF_FLAG; } else { /* standard frame format (SFF) */ - dreg = SFF_BUF; - id = (priv->read_reg(priv, REG_ID1) << 3) - | (priv->read_reg(priv, REG_ID2) >> 5); + dreg = SJA1000_SFF_BUF; + id = (priv->read_reg(priv, SJA1000_ID1) << 3) + | (priv->read_reg(priv, SJA1000_ID2) >> 5); } cf->can_dlc = get_can_dlc(fi & 0x0F); - if (fi & FI_RTR) { + if (fi & SJA1000_FI_RTR) { id |= CAN_RTR_FLAG; } else { for (i = 0; i < cf->can_dlc; i++) @@ -414,7 +415,7 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) priv->can.can_stats.bus_error++; stats->rx_errors++; - ecc = priv->read_reg(priv, REG_ECC); + ecc = priv->read_reg(priv, SJA1000_ECC); cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR; @@ -448,7 +449,7 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) if (isrc & IRQ_ALI) { /* arbitration lost interrupt */ netdev_dbg(dev, "arbitration lost interrupt\n"); - alc = priv->read_reg(priv, REG_ALC); + alc = priv->read_reg(priv, SJA1000_ALC); priv->can.can_stats.arbitration_lost++; stats->tx_errors++; cf->can_id |= CAN_ERR_LOSTARB; @@ -457,8 +458,8 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) if (state != priv->can.state && (state == CAN_STATE_ERROR_WARNING || state == CAN_STATE_ERROR_PASSIVE)) { - uint8_t rxerr = priv->read_reg(priv, REG_RXERR); - uint8_t txerr = priv->read_reg(priv, REG_TXERR); + uint8_t rxerr = priv->read_reg(priv, SJA1000_RXERR); + uint8_t txerr = priv->read_reg(priv, SJA1000_TXERR); cf->can_id |= CAN_ERR_CRTL; if (state == CAN_STATE_ERROR_WARNING) { priv->can.can_stats.error_warning++; @@ -494,15 +495,16 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id) int n = 0; /* Shared interrupts and IRQ off? */ - if (priv->read_reg(priv, REG_IER) == IRQ_OFF) + if (priv->read_reg(priv, SJA1000_IER) == IRQ_OFF) return IRQ_NONE; if (priv->pre_irq) priv->pre_irq(priv); - while ((isrc = priv->read_reg(priv, REG_IR)) && (n < SJA1000_MAX_IRQ)) { + while ((isrc = priv->read_reg(priv, SJA1000_IR)) && + (n < SJA1000_MAX_IRQ)) { n++; - status = priv->read_reg(priv, SJA1000_REG_SR); + status = priv->read_reg(priv, SJA1000_SR); /* check for absent controller due to hw unplug */ if (status == 0xFF && sja1000_is_absent(priv)) return IRQ_NONE; @@ -519,7 +521,7 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id) } else { /* transmission complete */ stats->tx_bytes += - priv->read_reg(priv, REG_FI) & 0xf; + priv->read_reg(priv, SJA1000_FI) & 0xf; stats->tx_packets++; can_get_echo_skb(dev, 0); } @@ -530,7 +532,7 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id) /* receive interrupt */ while (status & SR_RBS) { sja1000_rx(dev); - status = priv->read_reg(priv, SJA1000_REG_SR); + status = priv->read_reg(priv, SJA1000_SR); /* check for absent controller */ if (status == 0xFF && sja1000_is_absent(priv)) return IRQ_NONE; |