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can: EG20T PCH: add prefix to macro

For easy to readable/identifiable, add prefix "PCH_" to all of #define macros.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
wifi-calibration
Tomoya 2010-11-17 01:13:16 +00:00 committed by David S. Miller
parent 30dfe2c050
commit 086b5650dc
1 changed files with 187 additions and 200 deletions

View File

@ -32,49 +32,47 @@
#include <linux/can/dev.h>
#include <linux/can/error.h>
#define MAX_MSG_OBJ 32
#define MSG_OBJ_RX 0 /* The receive message object flag. */
#define MSG_OBJ_TX 1 /* The transmit message object flag. */
#define PCH_MAX_MSG_OBJ 32
#define PCH_MSG_OBJ_RX 0 /* The receive message object flag. */
#define PCH_MSG_OBJ_TX 1 /* The transmit message object flag. */
#define ENABLE 1 /* The enable flag */
#define DISABLE 0 /* The disable flag */
#define CAN_CTRL_INIT 0x0001 /* The INIT bit of CANCONT register. */
#define CAN_CTRL_IE 0x0002 /* The IE bit of CAN control register */
#define CAN_CTRL_IE_SIE_EIE 0x000e
#define CAN_CTRL_CCE 0x0040
#define CAN_CTRL_OPT 0x0080 /* The OPT bit of CANCONT register. */
#define CAN_OPT_SILENT 0x0008 /* The Silent bit of CANOPT reg. */
#define CAN_OPT_LBACK 0x0010 /* The LoopBack bit of CANOPT reg. */
#define CAN_CMASK_RX_TX_SET 0x00f3
#define CAN_CMASK_RX_TX_GET 0x0073
#define CAN_CMASK_ALL 0xff
#define CAN_CMASK_RDWR 0x80
#define CAN_CMASK_ARB 0x20
#define CAN_CMASK_CTRL 0x10
#define CAN_CMASK_MASK 0x40
#define CAN_CMASK_NEWDAT 0x04
#define CAN_CMASK_CLRINTPND 0x08
#define PCH_ENABLE 1 /* The enable flag */
#define PCH_DISABLE 0 /* The disable flag */
#define PCH_CTRL_INIT 0x0001 /* The INIT bit of CANCONT register. */
#define PCH_CTRL_IE 0x0002 /* The IE bit of CAN control register */
#define PCH_CTRL_IE_SIE_EIE 0x000e
#define PCH_CTRL_CCE 0x0040
#define PCH_CTRL_OPT 0x0080 /* The OPT bit of CANCONT register. */
#define PCH_OPT_SILENT 0x0008 /* The Silent bit of CANOPT reg. */
#define PCH_OPT_LBACK 0x0010 /* The LoopBack bit of CANOPT reg. */
#define PCH_CMASK_RX_TX_SET 0x00f3
#define PCH_CMASK_RX_TX_GET 0x0073
#define PCH_CMASK_ALL 0xff
#define PCH_CMASK_RDWR 0x80
#define PCH_CMASK_ARB 0x20
#define PCH_CMASK_CTRL 0x10
#define PCH_CMASK_MASK 0x40
#define PCH_CMASK_NEWDAT 0x04
#define PCH_CMASK_CLRINTPND 0x08
#define PCH_IF_MCONT_NEWDAT 0x8000
#define PCH_IF_MCONT_INTPND 0x2000
#define PCH_IF_MCONT_UMASK 0x1000
#define PCH_IF_MCONT_TXIE 0x0800
#define PCH_IF_MCONT_RXIE 0x0400
#define PCH_IF_MCONT_RMTEN 0x0200
#define PCH_IF_MCONT_TXRQXT 0x0100
#define PCH_IF_MCONT_EOB 0x0080
#define PCH_IF_MCONT_DLC 0x000f
#define PCH_IF_MCONT_MSGLOST 0x4000
#define PCH_MASK2_MDIR_MXTD 0xc000
#define PCH_ID2_DIR 0x2000
#define PCH_ID2_XTD 0x4000
#define PCH_ID_MSGVAL 0x8000
#define PCH_IF_CREQ_BUSY 0x8000
#define CAN_IF_MCONT_NEWDAT 0x8000
#define CAN_IF_MCONT_INTPND 0x2000
#define CAN_IF_MCONT_UMASK 0x1000
#define CAN_IF_MCONT_TXIE 0x0800
#define CAN_IF_MCONT_RXIE 0x0400
#define CAN_IF_MCONT_RMTEN 0x0200
#define CAN_IF_MCONT_TXRQXT 0x0100
#define CAN_IF_MCONT_EOB 0x0080
#define CAN_IF_MCONT_DLC 0x000f
#define CAN_IF_MCONT_MSGLOST 0x4000
#define CAN_MASK2_MDIR_MXTD 0xc000
#define CAN_ID2_DIR 0x2000
#define CAN_ID_MSGVAL 0x8000
#define CAN_STATUS_INT 0x8000
#define CAN_IF_CREQ_BUSY 0x8000
#define CAN_ID2_XTD 0x4000
#define CAN_REC 0x00007f00
#define CAN_TEC 0x000000ff
#define PCH_STATUS_INT 0x8000
#define PCH_REC 0x00007f00
#define PCH_TEC 0x000000ff
#define PCH_RX_OK 0x00000010
#define PCH_TX_OK 0x00000008
@ -93,26 +91,15 @@
#define PCH_CRC_ERR (PCH_LEC1 | PCH_LEC2)
/* bit position of certain controller bits. */
#define BIT_BITT_BRP 0
#define BIT_BITT_SJW 6
#define BIT_BITT_TSEG1 8
#define BIT_BITT_TSEG2 12
#define BIT_IF1_MCONT_RXIE 10
#define BIT_IF2_MCONT_TXIE 11
#define BIT_BRPE_BRPE 6
#define BIT_ES_TXERRCNT 0
#define BIT_ES_RXERRCNT 8
#define MSK_BITT_BRP 0x3f
#define MSK_BITT_SJW 0xc0
#define MSK_BITT_TSEG1 0xf00
#define MSK_BITT_TSEG2 0x7000
#define MSK_BRPE_BRPE 0x3c0
#define MSK_BRPE_GET 0x0f
#define MSK_CTRL_IE_SIE_EIE 0x07
#define MSK_MCONT_TXIE 0x08
#define MSK_MCONT_RXIE 0x10
#define PCH_CAN_NO_TX_BUFF 1
#define COUNTER_LIMIT 10
#define PCH_BIT_BRP 0
#define PCH_BIT_SJW 6
#define PCH_BIT_TSEG1 8
#define PCH_BIT_TSEG2 12
#define PCH_BIT_BRPE_BRPE 6
#define PCH_MSK_BITT_BRP 0x3f
#define PCH_MSK_BRPE_BRPE 0x3c0
#define PCH_MSK_CTRL_IE_SIE_EIE 0x07
#define PCH_COUNTER_LIMIT 10
#define PCH_CAN_CLK 50000000 /* 50MHz */
@ -181,14 +168,14 @@ struct pch_can_priv {
struct can_priv can;
unsigned int can_num;
struct pci_dev *dev;
unsigned int tx_enable[MAX_MSG_OBJ];
unsigned int rx_enable[MAX_MSG_OBJ];
unsigned int rx_link[MAX_MSG_OBJ];
unsigned int tx_enable[PCH_MAX_MSG_OBJ];
unsigned int rx_enable[PCH_MAX_MSG_OBJ];
unsigned int rx_link[PCH_MAX_MSG_OBJ];
unsigned int int_enables;
unsigned int int_stat;
struct net_device *ndev;
spinlock_t msgif_reg_lock; /* Message Interface Registers Access Lock*/
unsigned int msg_obj[MAX_MSG_OBJ];
unsigned int msg_obj[PCH_MAX_MSG_OBJ];
struct pch_can_regs __iomem *regs;
struct napi_struct napi;
unsigned int tx_obj; /* Point next Tx Obj index */
@ -228,11 +215,11 @@ static void pch_can_set_run_mode(struct pch_can_priv *priv,
{
switch (mode) {
case PCH_CAN_RUN:
pch_can_bit_clear(&priv->regs->cont, CAN_CTRL_INIT);
pch_can_bit_clear(&priv->regs->cont, PCH_CTRL_INIT);
break;
case PCH_CAN_STOP:
pch_can_bit_set(&priv->regs->cont, CAN_CTRL_INIT);
pch_can_bit_set(&priv->regs->cont, PCH_CTRL_INIT);
break;
default:
@ -246,30 +233,30 @@ static void pch_can_set_optmode(struct pch_can_priv *priv)
u32 reg_val = ioread32(&priv->regs->opt);
if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
reg_val |= CAN_OPT_SILENT;
reg_val |= PCH_OPT_SILENT;
if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK)
reg_val |= CAN_OPT_LBACK;
reg_val |= PCH_OPT_LBACK;
pch_can_bit_set(&priv->regs->cont, CAN_CTRL_OPT);
pch_can_bit_set(&priv->regs->cont, PCH_CTRL_OPT);
iowrite32(reg_val, &priv->regs->opt);
}
static void pch_can_set_int_custom(struct pch_can_priv *priv)
{
/* Clearing the IE, SIE and EIE bits of Can control register. */
pch_can_bit_clear(&priv->regs->cont, CAN_CTRL_IE_SIE_EIE);
pch_can_bit_clear(&priv->regs->cont, PCH_CTRL_IE_SIE_EIE);
/* Appropriately setting them. */
pch_can_bit_set(&priv->regs->cont,
((priv->int_enables & MSK_CTRL_IE_SIE_EIE) << 1));
((priv->int_enables & PCH_MSK_CTRL_IE_SIE_EIE) << 1));
}
/* This function retrieves interrupt enabled for the CAN device. */
static void pch_can_get_int_enables(struct pch_can_priv *priv, u32 *enables)
{
/* Obtaining the status of IE, SIE and EIE interrupt bits. */
*enables = ((ioread32(&priv->regs->cont) & CAN_CTRL_IE_SIE_EIE) >> 1);
*enables = ((ioread32(&priv->regs->cont) & PCH_CTRL_IE_SIE_EIE) >> 1);
}
static void pch_can_set_int_enables(struct pch_can_priv *priv,
@ -277,19 +264,19 @@ static void pch_can_set_int_enables(struct pch_can_priv *priv,
{
switch (interrupt_no) {
case PCH_CAN_ENABLE:
pch_can_bit_set(&priv->regs->cont, CAN_CTRL_IE);
pch_can_bit_set(&priv->regs->cont, PCH_CTRL_IE);
break;
case PCH_CAN_DISABLE:
pch_can_bit_clear(&priv->regs->cont, CAN_CTRL_IE);
pch_can_bit_clear(&priv->regs->cont, PCH_CTRL_IE);
break;
case PCH_CAN_ALL:
pch_can_bit_set(&priv->regs->cont, CAN_CTRL_IE_SIE_EIE);
pch_can_bit_set(&priv->regs->cont, PCH_CTRL_IE_SIE_EIE);
break;
case PCH_CAN_NONE:
pch_can_bit_clear(&priv->regs->cont, CAN_CTRL_IE_SIE_EIE);
pch_can_bit_clear(&priv->regs->cont, PCH_CTRL_IE_SIE_EIE);
break;
default:
@ -300,12 +287,12 @@ static void pch_can_set_int_enables(struct pch_can_priv *priv,
static void pch_can_check_if_busy(u32 __iomem *creq_addr, u32 num)
{
u32 counter = COUNTER_LIMIT;
u32 counter = PCH_COUNTER_LIMIT;
u32 ifx_creq;
iowrite32(num, creq_addr);
while (counter) {
ifx_creq = ioread32(creq_addr) & CAN_IF_CREQ_BUSY;
ifx_creq = ioread32(creq_addr) & PCH_IF_CREQ_BUSY;
if (!ifx_creq)
break;
counter--;
@ -322,22 +309,22 @@ static void pch_can_set_rx_enable(struct pch_can_priv *priv, u32 buff_num,
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
/* Reading the receive buffer data from RAM to Interface1 registers */
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, buff_num);
/* Setting the IF1MASK1 register to access MsgVal and RxIE bits */
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_ARB | CAN_CMASK_CTRL,
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_ARB | PCH_CMASK_CTRL,
&priv->regs->if1_cmask);
if (set == ENABLE) {
if (set == PCH_ENABLE) {
/* Setting the MsgVal and RxIE bits */
pch_can_bit_set(&priv->regs->if1_mcont, CAN_IF_MCONT_RXIE);
pch_can_bit_set(&priv->regs->if1_id2, CAN_ID_MSGVAL);
pch_can_bit_set(&priv->regs->if1_mcont, PCH_IF_MCONT_RXIE);
pch_can_bit_set(&priv->regs->if1_id2, PCH_ID_MSGVAL);
} else if (set == DISABLE) {
} else if (set == PCH_DISABLE) {
/* Resetting the MsgVal and RxIE bits */
pch_can_bit_clear(&priv->regs->if1_mcont, CAN_IF_MCONT_RXIE);
pch_can_bit_clear(&priv->regs->if1_id2, CAN_ID_MSGVAL);
pch_can_bit_clear(&priv->regs->if1_mcont, PCH_IF_MCONT_RXIE);
pch_can_bit_clear(&priv->regs->if1_id2, PCH_ID_MSGVAL);
}
pch_can_check_if_busy(&priv->regs->if1_creq, buff_num);
@ -350,8 +337,8 @@ static void pch_can_rx_enable_all(struct pch_can_priv *priv)
/* Traversing to obtain the object configured as receivers. */
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_RX)
pch_can_set_rx_enable(priv, i + 1, ENABLE);
if (priv->msg_obj[i] == PCH_MSG_OBJ_RX)
pch_can_set_rx_enable(priv, i + 1, PCH_ENABLE);
}
}
@ -361,8 +348,8 @@ static void pch_can_rx_disable_all(struct pch_can_priv *priv)
/* Traversing to obtain the object configured as receivers. */
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_RX)
pch_can_set_rx_enable(priv, i + 1, DISABLE);
if (priv->msg_obj[i] == PCH_MSG_OBJ_RX)
pch_can_set_rx_enable(priv, i + 1, PCH_DISABLE);
}
}
@ -373,22 +360,22 @@ static void pch_can_set_tx_enable(struct pch_can_priv *priv, u32 buff_num,
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
/* Reading the Msg buffer from Message RAM to Interface2 registers. */
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if2_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if2_cmask);
pch_can_check_if_busy(&priv->regs->if2_creq, buff_num);
/* Setting the IF2CMASK register for accessing the
MsgVal and TxIE bits */
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_ARB | CAN_CMASK_CTRL,
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_ARB | PCH_CMASK_CTRL,
&priv->regs->if2_cmask);
if (set == ENABLE) {
if (set == PCH_ENABLE) {
/* Setting the MsgVal and TxIE bits */
pch_can_bit_set(&priv->regs->if2_mcont, CAN_IF_MCONT_TXIE);
pch_can_bit_set(&priv->regs->if2_id2, CAN_ID_MSGVAL);
} else if (set == DISABLE) {
pch_can_bit_set(&priv->regs->if2_mcont, PCH_IF_MCONT_TXIE);
pch_can_bit_set(&priv->regs->if2_id2, PCH_ID_MSGVAL);
} else if (set == PCH_DISABLE) {
/* Resetting the MsgVal and TxIE bits. */
pch_can_bit_clear(&priv->regs->if2_mcont, CAN_IF_MCONT_TXIE);
pch_can_bit_clear(&priv->regs->if2_id2, CAN_ID_MSGVAL);
pch_can_bit_clear(&priv->regs->if2_mcont, PCH_IF_MCONT_TXIE);
pch_can_bit_clear(&priv->regs->if2_id2, PCH_ID_MSGVAL);
}
pch_can_check_if_busy(&priv->regs->if2_creq, buff_num);
@ -401,8 +388,8 @@ static void pch_can_tx_enable_all(struct pch_can_priv *priv)
/* Traversing to obtain the object configured as transmit object. */
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_TX)
pch_can_set_tx_enable(priv, i + 1, ENABLE);
if (priv->msg_obj[i] == PCH_MSG_OBJ_TX)
pch_can_set_tx_enable(priv, i + 1, PCH_ENABLE);
}
}
@ -412,8 +399,8 @@ static void pch_can_tx_disable_all(struct pch_can_priv *priv)
/* Traversing to obtain the object configured as transmit object. */
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_TX)
pch_can_set_tx_enable(priv, i + 1, DISABLE);
if (priv->msg_obj[i] == PCH_MSG_OBJ_TX)
pch_can_set_tx_enable(priv, i + 1, PCH_DISABLE);
}
}
@ -423,15 +410,15 @@ static void pch_can_get_rx_enable(struct pch_can_priv *priv, u32 buff_num,
unsigned long flags;
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, buff_num);
if (((ioread32(&priv->regs->if1_id2)) & CAN_ID_MSGVAL) &&
if (((ioread32(&priv->regs->if1_id2)) & PCH_ID_MSGVAL) &&
((ioread32(&priv->regs->if1_mcont)) &
CAN_IF_MCONT_RXIE))
*enable = ENABLE;
PCH_IF_MCONT_RXIE))
*enable = PCH_ENABLE;
else
*enable = DISABLE;
*enable = PCH_DISABLE;
spin_unlock_irqrestore(&priv->msgif_reg_lock, flags);
}
@ -441,15 +428,15 @@ static void pch_can_get_tx_enable(struct pch_can_priv *priv, u32 buff_num,
unsigned long flags;
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if2_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if2_cmask);
pch_can_check_if_busy(&priv->regs->if2_creq, buff_num);
if (((ioread32(&priv->regs->if2_id2)) & CAN_ID_MSGVAL) &&
if (((ioread32(&priv->regs->if2_id2)) & PCH_ID_MSGVAL) &&
((ioread32(&priv->regs->if2_mcont)) &
CAN_IF_MCONT_TXIE)) {
*enable = ENABLE;
PCH_IF_MCONT_TXIE)) {
*enable = PCH_ENABLE;
} else {
*enable = DISABLE;
*enable = PCH_DISABLE;
}
spin_unlock_irqrestore(&priv->msgif_reg_lock, flags);
}
@ -465,13 +452,13 @@ static void pch_can_set_rx_buffer_link(struct pch_can_priv *priv,
unsigned long flags;
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, buffer_num);
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_CTRL, &priv->regs->if1_cmask);
if (set == ENABLE)
pch_can_bit_clear(&priv->regs->if1_mcont, CAN_IF_MCONT_EOB);
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_CTRL, &priv->regs->if1_cmask);
if (set == PCH_ENABLE)
pch_can_bit_clear(&priv->regs->if1_mcont, PCH_IF_MCONT_EOB);
else
pch_can_bit_set(&priv->regs->if1_mcont, CAN_IF_MCONT_EOB);
pch_can_bit_set(&priv->regs->if1_mcont, PCH_IF_MCONT_EOB);
pch_can_check_if_busy(&priv->regs->if1_creq, buffer_num);
spin_unlock_irqrestore(&priv->msgif_reg_lock, flags);
@ -483,13 +470,13 @@ static void pch_can_get_rx_buffer_link(struct pch_can_priv *priv,
unsigned long flags;
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, buffer_num);
if (ioread32(&priv->regs->if1_mcont) & CAN_IF_MCONT_EOB)
*link = DISABLE;
if (ioread32(&priv->regs->if1_mcont) & PCH_IF_MCONT_EOB)
*link = PCH_DISABLE;
else
*link = ENABLE;
*link = PCH_ENABLE;
spin_unlock_irqrestore(&priv->msgif_reg_lock, flags);
}
@ -498,7 +485,7 @@ static void pch_can_clear_buffers(struct pch_can_priv *priv)
int i;
for (i = 0; i < PCH_RX_OBJ_NUM; i++) {
iowrite32(CAN_CMASK_RX_TX_SET, &priv->regs->if1_cmask);
iowrite32(PCH_CMASK_RX_TX_SET, &priv->regs->if1_cmask);
iowrite32(0xffff, &priv->regs->if1_mask1);
iowrite32(0xffff, &priv->regs->if1_mask2);
iowrite32(0x0, &priv->regs->if1_id1);
@ -508,14 +495,14 @@ static void pch_can_clear_buffers(struct pch_can_priv *priv)
iowrite32(0x0, &priv->regs->if1_dataa2);
iowrite32(0x0, &priv->regs->if1_datab1);
iowrite32(0x0, &priv->regs->if1_datab2);
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_MASK |
CAN_CMASK_ARB | CAN_CMASK_CTRL,
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_MASK |
PCH_CMASK_ARB | PCH_CMASK_CTRL,
&priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, i+1);
}
for (i = i; i < PCH_OBJ_NUM; i++) {
iowrite32(CAN_CMASK_RX_TX_SET, &priv->regs->if2_cmask);
iowrite32(PCH_CMASK_RX_TX_SET, &priv->regs->if2_cmask);
iowrite32(0xffff, &priv->regs->if2_mask1);
iowrite32(0xffff, &priv->regs->if2_mask2);
iowrite32(0x0, &priv->regs->if2_id1);
@ -525,8 +512,8 @@ static void pch_can_clear_buffers(struct pch_can_priv *priv)
iowrite32(0x0, &priv->regs->if2_dataa2);
iowrite32(0x0, &priv->regs->if2_datab1);
iowrite32(0x0, &priv->regs->if2_datab2);
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_MASK |
CAN_CMASK_ARB | CAN_CMASK_CTRL,
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_MASK |
PCH_CMASK_ARB | PCH_CMASK_CTRL,
&priv->regs->if2_cmask);
pch_can_check_if_busy(&priv->regs->if2_creq, i+1);
}
@ -540,8 +527,8 @@ static void pch_can_config_rx_tx_buffers(struct pch_can_priv *priv)
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_RX) {
iowrite32(CAN_CMASK_RX_TX_GET,
if (priv->msg_obj[i] == PCH_MSG_OBJ_RX) {
iowrite32(PCH_CMASK_RX_TX_GET,
&priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, i+1);
@ -549,48 +536,48 @@ static void pch_can_config_rx_tx_buffers(struct pch_can_priv *priv)
iowrite32(0x0, &priv->regs->if1_id2);
pch_can_bit_set(&priv->regs->if1_mcont,
CAN_IF_MCONT_UMASK);
PCH_IF_MCONT_UMASK);
/* Set FIFO mode set to 0 except last Rx Obj*/
pch_can_bit_clear(&priv->regs->if1_mcont,
CAN_IF_MCONT_EOB);
PCH_IF_MCONT_EOB);
/* In case FIFO mode, Last EoB of Rx Obj must be 1 */
if (i == (PCH_RX_OBJ_NUM - 1))
pch_can_bit_set(&priv->regs->if1_mcont,
CAN_IF_MCONT_EOB);
PCH_IF_MCONT_EOB);
iowrite32(0, &priv->regs->if1_mask1);
pch_can_bit_clear(&priv->regs->if1_mask2,
0x1fff | CAN_MASK2_MDIR_MXTD);
0x1fff | PCH_MASK2_MDIR_MXTD);
/* Setting CMASK for writing */
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_MASK |
CAN_CMASK_ARB | CAN_CMASK_CTRL,
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_MASK |
PCH_CMASK_ARB | PCH_CMASK_CTRL,
&priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, i+1);
} else if (priv->msg_obj[i] == MSG_OBJ_TX) {
iowrite32(CAN_CMASK_RX_TX_GET,
} else if (priv->msg_obj[i] == PCH_MSG_OBJ_TX) {
iowrite32(PCH_CMASK_RX_TX_GET,
&priv->regs->if2_cmask);
pch_can_check_if_busy(&priv->regs->if2_creq, i+1);
/* Resetting DIR bit for reception */
iowrite32(0x0, &priv->regs->if2_id1);
iowrite32(0x0, &priv->regs->if2_id2);
pch_can_bit_set(&priv->regs->if2_id2, CAN_ID2_DIR);
pch_can_bit_set(&priv->regs->if2_id2, PCH_ID2_DIR);
/* Setting EOB bit for transmitter */
iowrite32(CAN_IF_MCONT_EOB, &priv->regs->if2_mcont);
iowrite32(PCH_IF_MCONT_EOB, &priv->regs->if2_mcont);
pch_can_bit_set(&priv->regs->if2_mcont,
CAN_IF_MCONT_UMASK);
PCH_IF_MCONT_UMASK);
iowrite32(0, &priv->regs->if2_mask1);
pch_can_bit_clear(&priv->regs->if2_mask2, 0x1fff);
/* Setting CMASK for writing */
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_MASK |
CAN_CMASK_ARB | CAN_CMASK_CTRL,
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_MASK |
PCH_CMASK_ARB | PCH_CMASK_CTRL,
&priv->regs->if2_cmask);
pch_can_check_if_busy(&priv->regs->if2_creq, i+1);
@ -632,39 +619,39 @@ static void pch_can_release(struct pch_can_priv *priv)
/* This function clears interrupt(s) from the CAN device. */
static void pch_can_int_clr(struct pch_can_priv *priv, u32 mask)
{
if (mask == CAN_STATUS_INT) {
if (mask == PCH_STATUS_INT) {
ioread32(&priv->regs->stat);
return;
}
/* Clear interrupt for transmit object */
if (priv->msg_obj[mask - 1] == MSG_OBJ_TX) {
if (priv->msg_obj[mask - 1] == PCH_MSG_OBJ_TX) {
/* Setting CMASK for clearing interrupts for
frame transmission. */
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_CTRL | CAN_CMASK_ARB,
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_CTRL | PCH_CMASK_ARB,
&priv->regs->if2_cmask);
/* Resetting the ID registers. */
pch_can_bit_set(&priv->regs->if2_id2,
CAN_ID2_DIR | (0x7ff << 2));
PCH_ID2_DIR | (0x7ff << 2));
iowrite32(0x0, &priv->regs->if2_id1);
/* Claring NewDat, TxRqst & IntPnd */
pch_can_bit_clear(&priv->regs->if2_mcont,
CAN_IF_MCONT_NEWDAT | CAN_IF_MCONT_INTPND |
CAN_IF_MCONT_TXRQXT);
PCH_IF_MCONT_NEWDAT | PCH_IF_MCONT_INTPND |
PCH_IF_MCONT_TXRQXT);
pch_can_check_if_busy(&priv->regs->if2_creq, mask);
} else if (priv->msg_obj[mask - 1] == MSG_OBJ_RX) {
} else if (priv->msg_obj[mask - 1] == PCH_MSG_OBJ_RX) {
/* Setting CMASK for clearing the reception interrupts. */
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_CTRL | CAN_CMASK_ARB,
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_CTRL | PCH_CMASK_ARB,
&priv->regs->if1_cmask);
/* Clearing the Dir bit. */
pch_can_bit_clear(&priv->regs->if1_id2, CAN_ID2_DIR);
pch_can_bit_clear(&priv->regs->if1_id2, PCH_ID2_DIR);
/* Clearing NewDat & IntPnd */
pch_can_bit_clear(&priv->regs->if1_mcont,
CAN_IF_MCONT_NEWDAT | CAN_IF_MCONT_INTPND);
PCH_IF_MCONT_NEWDAT | PCH_IF_MCONT_INTPND);
pch_can_check_if_busy(&priv->regs->if1_creq, mask);
}
@ -712,9 +699,9 @@ static void pch_can_error(struct net_device *ndev, u32 status)
priv->can.can_stats.error_warning++;
cf->can_id |= CAN_ERR_CRTL;
errc = ioread32(&priv->regs->errc);
if (((errc & CAN_REC) >> 8) > 96)
if (((errc & PCH_REC) >> 8) > 96)
cf->data[1] |= CAN_ERR_CRTL_RX_WARNING;
if ((errc & CAN_TEC) > 96)
if ((errc & PCH_TEC) > 96)
cf->data[1] |= CAN_ERR_CRTL_TX_WARNING;
dev_warn(&ndev->dev,
"%s -> Error Counter is more than 96.\n", __func__);
@ -725,9 +712,9 @@ static void pch_can_error(struct net_device *ndev, u32 status)
state = CAN_STATE_ERROR_PASSIVE;
cf->can_id |= CAN_ERR_CRTL;
errc = ioread32(&priv->regs->errc);
if (((errc & CAN_REC) >> 8) > 127)
if (((errc & PCH_REC) >> 8) > 127)
cf->data[1] |= CAN_ERR_CRTL_RX_PASSIVE;
if ((errc & CAN_TEC) > 127)
if ((errc & PCH_TEC) > 127)
cf->data[1] |= CAN_ERR_CRTL_TX_PASSIVE;
dev_err(&ndev->dev,
"%s -> CAN controller is ERROR PASSIVE .\n", __func__);
@ -795,20 +782,20 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 int_stat)
struct net_device_stats *stats = &(priv->ndev->stats);
/* Reading the messsage object from the Message RAM */
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, int_stat);
/* Reading the MCONT register. */
reg = ioread32(&priv->regs->if1_mcont);
reg &= 0xffff;
for (k = int_stat; !(reg & CAN_IF_MCONT_EOB); k++) {
for (k = int_stat; !(reg & PCH_IF_MCONT_EOB); k++) {
/* If MsgLost bit set. */
if (reg & CAN_IF_MCONT_MSGLOST) {
if (reg & PCH_IF_MCONT_MSGLOST) {
dev_err(&priv->ndev->dev, "Msg Obj is overwritten.\n");
pch_can_bit_clear(&priv->regs->if1_mcont,
CAN_IF_MCONT_MSGLOST);
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_CTRL,
PCH_IF_MCONT_MSGLOST);
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_CTRL,
&priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, k);
@ -828,7 +815,7 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 int_stat)
rcv_pkts++;
goto RX_NEXT;
}
if (!(reg & CAN_IF_MCONT_NEWDAT))
if (!(reg & PCH_IF_MCONT_NEWDAT))
goto RX_NEXT;
skb = alloc_can_skb(priv->ndev, &cf);
@ -836,7 +823,7 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 int_stat)
return -ENOMEM;
/* Get Received data */
ide = ((ioread32(&priv->regs->if1_id2)) & CAN_ID2_XTD) >> 14;
ide = ((ioread32(&priv->regs->if1_id2)) & PCH_ID2_XTD) >> 14;
if (ide) {
id = (ioread32(&priv->regs->if1_id1) & 0xffff);
id |= (((ioread32(&priv->regs->if1_id2)) &
@ -848,7 +835,7 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 int_stat)
cf->can_id = (id & CAN_SFF_MASK);
}
rtr = (ioread32(&priv->regs->if1_id2) & CAN_ID2_DIR);
rtr = (ioread32(&priv->regs->if1_id2) & PCH_ID2_DIR);
if (rtr) {
cf->can_dlc = 0;
cf->can_id |= CAN_RTR_FLAG;
@ -871,15 +858,15 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 int_stat)
stats->rx_bytes += cf->can_dlc;
if (k < PCH_FIFO_THRESH) {
iowrite32(CAN_CMASK_RDWR | CAN_CMASK_CTRL |
CAN_CMASK_ARB, &priv->regs->if1_cmask);
iowrite32(PCH_CMASK_RDWR | PCH_CMASK_CTRL |
PCH_CMASK_ARB, &priv->regs->if1_cmask);
/* Clearing the Dir bit. */
pch_can_bit_clear(&priv->regs->if1_id2, CAN_ID2_DIR);
pch_can_bit_clear(&priv->regs->if1_id2, PCH_ID2_DIR);
/* Clearing NewDat & IntPnd */
pch_can_bit_clear(&priv->regs->if1_mcont,
CAN_IF_MCONT_INTPND);
PCH_IF_MCONT_INTPND);
pch_can_check_if_busy(&priv->regs->if1_creq, k);
} else if (k > PCH_FIFO_THRESH) {
pch_can_int_clr(priv, k);
@ -890,7 +877,7 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 int_stat)
}
RX_NEXT:
/* Reading the messsage object from the Message RAM */
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if1_cmask);
pch_can_check_if_busy(&priv->regs->if1_creq, k + 1);
reg = ioread32(&priv->regs->if1_mcont);
}
@ -913,7 +900,7 @@ static int pch_can_rx_poll(struct napi_struct *napi, int quota)
return 0;
INT_STAT:
if (int_stat == CAN_STATUS_INT) {
if (int_stat == PCH_STATUS_INT) {
reg_stat = ioread32(&priv->regs->stat);
if (reg_stat & (PCH_BUS_OFF | PCH_LEC_ALL)) {
if ((reg_stat & PCH_LEC_ALL) != PCH_LEC_ALL)
@ -922,7 +909,7 @@ INT_STAT:
if (reg_stat & PCH_TX_OK) {
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if2_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if2_cmask);
pch_can_check_if_busy(&priv->regs->if2_creq,
ioread32(&priv->regs->intr));
spin_unlock_irqrestore(&priv->msgif_reg_lock, flags);
@ -933,7 +920,7 @@ INT_STAT:
pch_can_bit_clear(&priv->regs->stat, PCH_RX_OK);
int_stat = pch_can_int_pending(priv);
if (int_stat == CAN_STATUS_INT)
if (int_stat == PCH_STATUS_INT)
goto INT_STAT;
}
@ -945,14 +932,14 @@ MSG_OBJ:
if (rcv_pkts < 0)
return 0;
} else if ((int_stat > PCH_RX_OBJ_NUM) && (int_stat <= PCH_OBJ_NUM)) {
if (priv->msg_obj[int_stat - 1] == MSG_OBJ_TX) {
if (priv->msg_obj[int_stat - 1] == PCH_MSG_OBJ_TX) {
/* Handle transmission interrupt */
can_get_echo_skb(ndev, int_stat - PCH_RX_OBJ_NUM - 1);
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
iowrite32(CAN_CMASK_RX_TX_GET | CAN_CMASK_CLRINTPND,
iowrite32(PCH_CMASK_RX_TX_GET | PCH_CMASK_CLRINTPND,
&priv->regs->if2_cmask);
dlc = ioread32(&priv->regs->if2_mcont) &
CAN_IF_MCONT_DLC;
PCH_IF_MCONT_DLC;
pch_can_check_if_busy(&priv->regs->if2_creq, int_stat);
spin_unlock_irqrestore(&priv->msgif_reg_lock, flags);
if (dlc > 8)
@ -963,7 +950,7 @@ MSG_OBJ:
}
int_stat = pch_can_int_pending(priv);
if (int_stat == CAN_STATUS_INT)
if (int_stat == PCH_STATUS_INT)
goto INT_STAT;
else if (int_stat >= 1 && int_stat <= 32)
goto MSG_OBJ;
@ -983,17 +970,17 @@ static int pch_set_bittiming(struct net_device *ndev)
u32 brp;
/* Setting the CCE bit for accessing the Can Timing register. */
pch_can_bit_set(&priv->regs->cont, CAN_CTRL_CCE);
pch_can_bit_set(&priv->regs->cont, PCH_CTRL_CCE);
brp = (bt->tq) / (1000000000/PCH_CAN_CLK) - 1;
canbit = brp & MSK_BITT_BRP;
canbit |= (bt->sjw - 1) << BIT_BITT_SJW;
canbit |= (bt->phase_seg1 + bt->prop_seg - 1) << BIT_BITT_TSEG1;
canbit |= (bt->phase_seg2 - 1) << BIT_BITT_TSEG2;
bepe = (brp & MSK_BRPE_BRPE) >> BIT_BRPE_BRPE;
canbit = brp & PCH_MSK_BITT_BRP;
canbit |= (bt->sjw - 1) << PCH_BIT_SJW;
canbit |= (bt->phase_seg1 + bt->prop_seg - 1) << PCH_BIT_TSEG1;
canbit |= (bt->phase_seg2 - 1) << PCH_BIT_TSEG2;
bepe = (brp & PCH_MSK_BRPE_BRPE) >> PCH_BIT_BRPE_BRPE;
iowrite32(canbit, &priv->regs->bitt);
iowrite32(bepe, &priv->regs->brpe);
pch_can_bit_clear(&priv->regs->cont, CAN_CTRL_CCE);
pch_can_bit_clear(&priv->regs->cont, PCH_CTRL_CCE);
return 0;
}
@ -1137,19 +1124,19 @@ static netdev_tx_t pch_xmit(struct sk_buff *skb, struct net_device *ndev)
spin_lock_irqsave(&priv->msgif_reg_lock, flags);
/* Reading the Msg Obj from the Msg RAM to the Interface register. */
iowrite32(CAN_CMASK_RX_TX_GET, &priv->regs->if2_cmask);
iowrite32(PCH_CMASK_RX_TX_GET, &priv->regs->if2_cmask);
pch_can_check_if_busy(&priv->regs->if2_creq, tx_buffer_avail);
/* Setting the CMASK register. */
pch_can_bit_set(&priv->regs->if2_cmask, CAN_CMASK_ALL);
pch_can_bit_set(&priv->regs->if2_cmask, PCH_CMASK_ALL);
/* If ID extended is set. */
pch_can_bit_clear(&priv->regs->if2_id1, 0xffff);
pch_can_bit_clear(&priv->regs->if2_id2, 0x1fff | CAN_ID2_XTD);
pch_can_bit_clear(&priv->regs->if2_id2, 0x1fff | PCH_ID2_XTD);
if (cf->can_id & CAN_EFF_FLAG) {
pch_can_bit_set(&priv->regs->if2_id1, cf->can_id & 0xffff);
pch_can_bit_set(&priv->regs->if2_id2,
((cf->can_id >> 16) & 0x1fff) | CAN_ID2_XTD);
((cf->can_id >> 16) & 0x1fff) | PCH_ID2_XTD);
} else {
pch_can_bit_set(&priv->regs->if2_id1, 0);
pch_can_bit_set(&priv->regs->if2_id2,
@ -1158,7 +1145,7 @@ static netdev_tx_t pch_xmit(struct sk_buff *skb, struct net_device *ndev)
/* If remote frame has to be transmitted.. */
if (cf->can_id & CAN_RTR_FLAG)
pch_can_bit_clear(&priv->regs->if2_id2, CAN_ID2_DIR);
pch_can_bit_clear(&priv->regs->if2_id2, PCH_ID2_DIR);
for (i = 0, j = 0; i < cf->can_dlc; j++) {
iowrite32(le32_to_cpu(cf->data[i++]),
@ -1177,12 +1164,12 @@ static netdev_tx_t pch_xmit(struct sk_buff *skb, struct net_device *ndev)
/* Clearing IntPend, NewDat & TxRqst */
pch_can_bit_clear(&priv->regs->if2_mcont,
CAN_IF_MCONT_NEWDAT | CAN_IF_MCONT_INTPND |
CAN_IF_MCONT_TXRQXT);
PCH_IF_MCONT_NEWDAT | PCH_IF_MCONT_INTPND |
PCH_IF_MCONT_TXRQXT);
/* Setting NewDat, TxRqst bits */
pch_can_bit_set(&priv->regs->if2_mcont,
CAN_IF_MCONT_NEWDAT | CAN_IF_MCONT_TXRQXT);
PCH_IF_MCONT_NEWDAT | PCH_IF_MCONT_TXRQXT);
pch_can_check_if_busy(&priv->regs->if2_creq, tx_buffer_avail);
@ -1245,7 +1232,7 @@ static int pch_can_suspend(struct pci_dev *pdev, pm_message_t state)
/* Save Tx buffer enable state */
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_TX)
if (priv->msg_obj[i] == PCH_MSG_OBJ_TX)
pch_can_get_tx_enable(priv, i + 1,
&(priv->tx_enable[i]));
}
@ -1255,7 +1242,7 @@ static int pch_can_suspend(struct pci_dev *pdev, pm_message_t state)
/* Save Rx buffer enable state */
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_RX) {
if (priv->msg_obj[i] == PCH_MSG_OBJ_RX) {
pch_can_get_rx_enable(priv, i + 1,
&(priv->rx_enable[i]));
pch_can_get_rx_buffer_link(priv, i + 1,
@ -1313,7 +1300,7 @@ static int pch_can_resume(struct pci_dev *pdev)
/* Enabling the transmit buffer. */
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_TX) {
if (priv->msg_obj[i] == PCH_MSG_OBJ_TX) {
pch_can_set_tx_enable(priv, i + 1,
priv->tx_enable[i]);
}
@ -1321,7 +1308,7 @@ static int pch_can_resume(struct pci_dev *pdev)
/* Configuring the receive buffer and enabling them. */
for (i = 0; i < PCH_OBJ_NUM; i++) {
if (priv->msg_obj[i] == MSG_OBJ_RX) {
if (priv->msg_obj[i] == PCH_MSG_OBJ_RX) {
/* Restore buffer link */
pch_can_set_rx_buffer_link(priv, i + 1,
priv->rx_link[i]);
@ -1349,8 +1336,8 @@ static int pch_can_get_berr_counter(const struct net_device *dev,
{
struct pch_can_priv *priv = netdev_priv(dev);
bec->txerr = ioread32(&priv->regs->errc) & CAN_TEC;
bec->rxerr = (ioread32(&priv->regs->errc) & CAN_REC) >> 8;
bec->txerr = ioread32(&priv->regs->errc) & PCH_TEC;
bec->rxerr = (ioread32(&priv->regs->errc) & PCH_REC) >> 8;
return 0;
}
@ -1410,10 +1397,10 @@ static int __devinit pch_can_probe(struct pci_dev *pdev,
priv->can.clock.freq = PCH_CAN_CLK; /* Hz */
for (index = 0; index < PCH_RX_OBJ_NUM;)
priv->msg_obj[index++] = MSG_OBJ_RX;
priv->msg_obj[index++] = PCH_MSG_OBJ_RX;
for (index = index; index < PCH_OBJ_NUM;)
priv->msg_obj[index++] = MSG_OBJ_TX;
priv->msg_obj[index++] = PCH_MSG_OBJ_TX;
netif_napi_add(ndev, &priv->napi, pch_can_rx_poll, PCH_RX_OBJ_NUM);