2010-11-30 04:16:48

by Tomoya MORINAGA

Subject: [PATCH net-next-2.6 v6 03/20] can: EG20T PCH: Enumerate LEC macros

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

Signed-off-by: Tomoya MORINAGA <[email protected]>
---
drivers/net/can/pch_can.c | 77 ++++++++++++++++++++++++---------------------
1 files changed, 41 insertions(+), 36 deletions(-)

diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c
index 982ff2d..2d4ab0f 100644
--- a/drivers/net/can/pch_can.c
+++ b/drivers/net/can/pch_can.c
@@ -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;

@@ -665,33 +666,37 @@ static void pch_can_error(struct net_device *ndev, u32 status)
"%s -> CAN controller is ERROR PASSIVE .\n", __func__);
}

- if (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++;
- switch (status & PCH_LEC_ALL) {
- case PCH_STUF_ERR:
- cf->data[2] |= CAN_ERR_PROT_STUFF;
- break;
- case PCH_FORM_ERR:
- cf->data[2] |= CAN_ERR_PROT_FORM;
- break;
- case PCH_ACK_ERR:
- cf->data[2] |= CAN_ERR_PROT_LOC_ACK |
- CAN_ERR_PROT_LOC_ACK_DEL;
- break;
- case PCH_BIT1_ERR:
- case PCH_BIT0_ERR:
- cf->data[2] |= CAN_ERR_PROT_BIT;
- break;
- case PCH_CRC_ERR:
- cf->data[2] |= CAN_ERR_PROT_LOC_CRC_SEQ |
- CAN_ERR_PROT_LOC_CRC_DEL;
- break;
- default:
- iowrite32(status | PCH_LEC_ALL, &priv->regs->stat);
- break;
- }
-
+ 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->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;
+ case PCH_LEC_ALL: /* Written by CPU. No error status */
+ break;
}

priv->can.state = state;
--
1.6.0.6

2010-12-02 21:05:50

by David Miller

Subject: Re: [PATCH net-next-2.6 v6 03/20] can: EG20T PCH: Enumerate LEC macros

From: Tomoya MORINAGA <[email protected]>
Date: Tue, 30 Nov 2010 13:16:15 +0900

> For easy to readable, LEC #define macros are replaced to enums.
>
> Signed-off-by: Tomoya MORINAGA <[email protected]>

Applied.