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Commit d68f6837 authored by Tomoya's avatar Tomoya Committed by David S. Miller
Browse files

can: EG20T PCH: Enumerate LEC macros 



For easy to readable, LEC #define macros are replaced to enums.

Signed-off-by: default avatarTomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 15ffc8fd

drivers/net/can/pch_can.c

+41 −36
Original line number Diff line number Diff line
@@ -71,21 +71,12 @@ 
#define PCH_REC			0x00007f00

#define PCH_TEC			0x000000ff





#define PCH_TX_OK		BIT(3)

#define PCH_RX_OK		BIT(4)

#define PCH_EPASSIV		BIT(5)

#define PCH_EWARN		BIT(6)

#define PCH_BUS_OFF		BIT(7)

#define PCH_LEC0		BIT(0)

#define PCH_LEC1		BIT(1)

#define PCH_LEC2		BIT(2)

#define PCH_LEC_ALL		(PCH_LEC0 | PCH_LEC1 | PCH_LEC2)

#define PCH_STUF_ERR		PCH_LEC0

#define PCH_FORM_ERR		PCH_LEC1

#define PCH_ACK_ERR		(PCH_LEC0 | PCH_LEC1)

#define PCH_BIT1_ERR		PCH_LEC2

#define PCH_BIT0_ERR		(PCH_LEC0 | PCH_LEC2)

#define PCH_CRC_ERR		(PCH_LEC1 | PCH_LEC2)



/* bit position of certain controller bits. */

#define PCH_BIT_BRP		0
@@ -117,6 +108,16 @@ enum pch_ifreg { 
	PCH_TX_IFREG,

};



enum pch_can_err {

	PCH_STUF_ERR = 1,

	PCH_FORM_ERR,

	PCH_ACK_ERR,

	PCH_BIT1_ERR,

	PCH_BIT0_ERR,

	PCH_CRC_ERR,

	PCH_LEC_ALL,

};



enum pch_can_mode {

	PCH_CAN_ENABLE,

	PCH_CAN_DISABLE,
@@ -620,7 +621,7 @@ static void pch_can_error(struct net_device *ndev, u32 status) 
	struct sk_buff *skb;

	struct pch_can_priv *priv = netdev_priv(ndev);

	struct can_frame *cf;

	u32 errc;

	u32 errc, lec;

	struct net_device_stats *stats = &(priv->ndev->stats);

	enum can_state state = priv->can.state;
@@ -665,35 +666,39 @@ static void pch_can_error(struct net_device *ndev, u32 status) 
			"%s -> CAN controller is ERROR PASSIVE .\n", __func__);

	}



	if (status & PCH_LEC_ALL) {

		priv->can.can_stats.bus_error++;

		stats->rx_errors++;

		switch (status & PCH_LEC_ALL) {

	lec = status & PCH_LEC_ALL;

	switch (lec) {

	case PCH_STUF_ERR:

		cf->data[2] |= CAN_ERR_PROT_STUFF;

		priv->can.can_stats.bus_error++;

		stats->rx_errors++;

		break;

	case PCH_FORM_ERR:

		cf->data[2] |= CAN_ERR_PROT_FORM;

		priv->can.can_stats.bus_error++;

		stats->rx_errors++;

		break;

	case PCH_ACK_ERR:

			cf->data[2] |= CAN_ERR_PROT_LOC_ACK |

				       CAN_ERR_PROT_LOC_ACK_DEL;

		cf->can_id |= CAN_ERR_ACK;

		priv->can.can_stats.bus_error++;

		stats->rx_errors++;

		break;

	case PCH_BIT1_ERR:

	case PCH_BIT0_ERR:

		cf->data[2] |= CAN_ERR_PROT_BIT;

		priv->can.can_stats.bus_error++;

		stats->rx_errors++;

		break;

	case PCH_CRC_ERR:

		cf->data[2] |= CAN_ERR_PROT_LOC_CRC_SEQ |

			       CAN_ERR_PROT_LOC_CRC_DEL;

		priv->can.can_stats.bus_error++;

		stats->rx_errors++;

		break;

		default:

			iowrite32(status | PCH_LEC_ALL, &priv->regs->stat);

	case PCH_LEC_ALL: /* Written by CPU. No error status */

		break;

	}



	}



	priv->can.state = state;

	netif_rx(skb);