diff options
Diffstat (limited to 'drivers/net/can/pch_can.c')
| -rw-r--r-- | drivers/net/can/pch_can.c | 391 |
1 files changed, 189 insertions, 202 deletions
diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 672718261c68..c523e3dd5d10 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -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 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 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_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 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 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); |
