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Message-ID: <20190509161109.10499-2-dmurphy@ti.com>
Date: Thu, 9 May 2019 11:11:06 -0500
From: Dan Murphy <dmurphy@...com>
To: <wg@...ndegger.com>, <mkl@...gutronix.de>, <davem@...emloft.net>
CC: <linux-can@...r.kernel.org>, <netdev@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Dan Murphy <dmurphy@...com>
Subject: [PATCH v12 2/5] can: m_can: Rename m_can_priv to m_can_classdev
Rename the common m_can_priv class structure to
m_can_classdev as this is more descriptive.
Acked-by: Wolfgang Grandegger <wg@...ndegger.com>
Signed-off-by: Dan Murphy <dmurphy@...com>
---
v12 - Rebased on top of changes made in (can: m_can: Create a m_can platform framework) -
https://lore.kernel.org/patchwork/patch/1052303/
v11 - No changes - https://lore.kernel.org/patchwork/patch/1051181/
v10 - No changes - https://lore.kernel.org/patchwork/patch/1050489/
v9 - Made additional changes on new code to make priv->cdev other wise no changes
https://lore.kernel.org/patchwork/patch/1050121/
v8 - Made additional changes on new code to make priv->cdev, and updated the
header file class_dev variable to be consistent. - https://lore.kernel.org/patchwork/patch/1047979/
v7 - Fixed remaining checkpatch issues, renamed priv to cdev - https://lore.kernel.org/patchwork/patch/1047219/
v6 - No changes only rebase changes possibly can squash into the first patch -
https://lore.kernel.org/patchwork/patch/1042444/
drivers/net/can/m_can/m_can.c | 532 +++++++++++++------------
drivers/net/can/m_can/m_can.h | 28 +-
drivers/net/can/m_can/m_can_platform.c | 16 +-
3 files changed, 290 insertions(+), 286 deletions(-)
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 5f88ff605341..923c53204d7d 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -320,57 +320,57 @@ enum m_can_reg {
#define TX_EVENT_MM_SHIFT TX_BUF_MM_SHIFT
#define TX_EVENT_MM_MASK (0xff << TX_EVENT_MM_SHIFT)
-static inline u32 m_can_read(struct m_can_priv *priv, enum m_can_reg reg)
+static inline u32 m_can_read(struct m_can_classdev *cdev, enum m_can_reg reg)
{
- return priv->ops->read_reg(priv, reg);
+ return cdev->ops->read_reg(cdev, reg);
}
-static inline void m_can_write(struct m_can_priv *priv, enum m_can_reg reg,
+static inline void m_can_write(struct m_can_classdev *cdev, enum m_can_reg reg,
u32 val)
{
- priv->ops->write_reg(priv, reg, val);
+ cdev->ops->write_reg(cdev, reg, val);
}
-static u32 m_can_fifo_read(struct m_can_priv *priv,
+static u32 m_can_fifo_read(struct m_can_classdev *cdev,
u32 fgi, unsigned int offset)
{
- u32 addr_offset = priv->mcfg[MRAM_RXF0].off + fgi * RXF0_ELEMENT_SIZE +
+ u32 addr_offset = cdev->mcfg[MRAM_RXF0].off + fgi * RXF0_ELEMENT_SIZE +
offset;
- return priv->ops->read_fifo(priv, addr_offset);
+ return cdev->ops->read_fifo(cdev, addr_offset);
}
-static void m_can_fifo_write(struct m_can_priv *priv,
+static void m_can_fifo_write(struct m_can_classdev *cdev,
u32 fpi, unsigned int offset, u32 val)
{
- u32 addr_offset = priv->mcfg[MRAM_TXB].off + fpi * TXB_ELEMENT_SIZE +
+ u32 addr_offset = cdev->mcfg[MRAM_TXB].off + fpi * TXB_ELEMENT_SIZE +
offset;
- priv->ops->write_fifo(priv, addr_offset, val);
+ cdev->ops->write_fifo(cdev, addr_offset, val);
}
-static inline void m_can_fifo_write_no_off(struct m_can_priv *priv,
+static inline void m_can_fifo_write_no_off(struct m_can_classdev *cdev,
u32 fpi, u32 val)
{
- priv->ops->write_fifo(priv, fpi, val);
+ cdev->ops->write_fifo(cdev, fpi, val);
}
-static u32 m_can_txe_fifo_read(struct m_can_priv *priv, u32 fgi, u32 offset)
+static u32 m_can_txe_fifo_read(struct m_can_classdev *cdev, u32 fgi, u32 offset)
{
- u32 addr_offset = priv->mcfg[MRAM_TXE].off + fgi * TXE_ELEMENT_SIZE +
+ u32 addr_offset = cdev->mcfg[MRAM_TXE].off + fgi * TXE_ELEMENT_SIZE +
offset;
- return priv->ops->read_fifo(priv, addr_offset);
+ return cdev->ops->read_fifo(cdev, addr_offset);
}
-static inline bool m_can_tx_fifo_full(struct m_can_priv *priv)
+static inline bool m_can_tx_fifo_full(struct m_can_classdev *cdev)
{
- return !!(m_can_read(priv, M_CAN_TXFQS) & TXFQS_TFQF);
+ return !!(m_can_read(cdev, M_CAN_TXFQS) & TXFQS_TFQF);
}
-void m_can_config_endisable(struct m_can_priv *priv, bool enable)
+void m_can_config_endisable(struct m_can_classdev *cdev, bool enable)
{
- u32 cccr = m_can_read(priv, M_CAN_CCCR);
+ u32 cccr = m_can_read(cdev, M_CAN_CCCR);
u32 timeout = 10;
u32 val = 0;
@@ -384,21 +384,21 @@ void m_can_config_endisable(struct m_can_priv *priv, bool enable)
cccr &= ~CCCR_CSR;
/* enable m_can configuration */
- m_can_write(priv, M_CAN_CCCR, cccr | CCCR_INIT);
+ m_can_write(cdev, M_CAN_CCCR, cccr | CCCR_INIT);
udelay(5);
/* CCCR.CCE can only be set/reset while CCCR.INIT = '1' */
- m_can_write(priv, M_CAN_CCCR, cccr | CCCR_INIT | CCCR_CCE);
+ m_can_write(cdev, M_CAN_CCCR, cccr | CCCR_INIT | CCCR_CCE);
} else {
- m_can_write(priv, M_CAN_CCCR, cccr & ~(CCCR_INIT | CCCR_CCE));
+ m_can_write(cdev, M_CAN_CCCR, cccr & ~(CCCR_INIT | CCCR_CCE));
}
/* there's a delay for module initialization */
if (enable)
val = CCCR_INIT | CCCR_CCE;
- while ((m_can_read(priv, M_CAN_CCCR) & (CCCR_INIT | CCCR_CCE)) != val) {
+ while ((m_can_read(cdev, M_CAN_CCCR) & (CCCR_INIT | CCCR_CCE)) != val) {
if (timeout == 0) {
- netdev_warn(priv->net, "Failed to init module\n");
+ netdev_warn(cdev->net, "Failed to init module\n");
return;
}
timeout--;
@@ -406,38 +406,38 @@ void m_can_config_endisable(struct m_can_priv *priv, bool enable)
}
}
-static inline void m_can_enable_all_interrupts(struct m_can_priv *priv)
+static inline void m_can_enable_all_interrupts(struct m_can_classdev *cdev)
{
/* Only interrupt line 0 is used in this driver */
- m_can_write(priv, M_CAN_ILE, ILE_EINT0);
+ m_can_write(cdev, M_CAN_ILE, ILE_EINT0);
}
-static inline void m_can_disable_all_interrupts(struct m_can_priv *priv)
+static inline void m_can_disable_all_interrupts(struct m_can_classdev *cdev)
{
- m_can_write(priv, M_CAN_ILE, 0x0);
+ m_can_write(cdev, M_CAN_ILE, 0x0);
}
static void m_can_clean(struct net_device *net)
{
- struct m_can_priv *priv = netdev_priv(net);
+ struct m_can_classdev *cdev = netdev_priv(net);
- if (priv->tx_skb) {
+ if (cdev->tx_skb) {
int putidx = 0;
net->stats.tx_errors++;
- if (priv->version > 30)
- putidx = ((m_can_read(priv, M_CAN_TXFQS) &
+ if (cdev->version > 30)
+ putidx = ((m_can_read(cdev, M_CAN_TXFQS) &
TXFQS_TFQPI_MASK) >> TXFQS_TFQPI_SHIFT);
- can_free_echo_skb(priv->net, putidx);
- priv->tx_skb = NULL;
+ can_free_echo_skb(cdev->net, putidx);
+ cdev->tx_skb = NULL;
}
}
static void m_can_read_fifo(struct net_device *dev, u32 rxfs)
{
struct net_device_stats *stats = &dev->stats;
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
struct canfd_frame *cf;
struct sk_buff *skb;
u32 id, fgi, dlc;
@@ -445,7 +445,7 @@ static void m_can_read_fifo(struct net_device *dev, u32 rxfs)
/* calculate the fifo get index for where to read data */
fgi = (rxfs & RXFS_FGI_MASK) >> RXFS_FGI_SHIFT;
- dlc = m_can_fifo_read(priv, fgi, M_CAN_FIFO_DLC);
+ dlc = m_can_fifo_read(cdev, fgi, M_CAN_FIFO_DLC);
if (dlc & RX_BUF_FDF)
skb = alloc_canfd_skb(dev, &cf);
else
@@ -460,7 +460,7 @@ static void m_can_read_fifo(struct net_device *dev, u32 rxfs)
else
cf->len = get_can_dlc((dlc >> 16) & 0x0F);
- id = m_can_fifo_read(priv, fgi, M_CAN_FIFO_ID);
+ id = m_can_fifo_read(cdev, fgi, M_CAN_FIFO_ID);
if (id & RX_BUF_XTD)
cf->can_id = (id & CAN_EFF_MASK) | CAN_EFF_FLAG;
else
@@ -479,12 +479,12 @@ static void m_can_read_fifo(struct net_device *dev, u32 rxfs)
for (i = 0; i < cf->len; i += 4)
*(u32 *)(cf->data + i) =
- m_can_fifo_read(priv, fgi,
+ m_can_fifo_read(cdev, fgi,
M_CAN_FIFO_DATA(i / 4));
}
/* acknowledge rx fifo 0 */
- m_can_write(priv, M_CAN_RXF0A, fgi);
+ m_can_write(cdev, M_CAN_RXF0A, fgi);
stats->rx_packets++;
stats->rx_bytes += cf->len;
@@ -494,11 +494,11 @@ static void m_can_read_fifo(struct net_device *dev, u32 rxfs)
static int m_can_do_rx_poll(struct net_device *dev, int quota)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
u32 pkts = 0;
u32 rxfs;
- rxfs = m_can_read(priv, M_CAN_RXF0S);
+ rxfs = m_can_read(cdev, M_CAN_RXF0S);
if (!(rxfs & RXFS_FFL_MASK)) {
netdev_dbg(dev, "no messages in fifo0\n");
return 0;
@@ -512,7 +512,7 @@ static int m_can_do_rx_poll(struct net_device *dev, int quota)
quota--;
pkts++;
- rxfs = m_can_read(priv, M_CAN_RXF0S);
+ rxfs = m_can_read(cdev, M_CAN_RXF0S);
}
if (pkts)
@@ -547,12 +547,12 @@ static int m_can_handle_lost_msg(struct net_device *dev)
static int m_can_handle_lec_err(struct net_device *dev,
enum m_can_lec_type lec_type)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
struct net_device_stats *stats = &dev->stats;
struct can_frame *cf;
struct sk_buff *skb;
- priv->can.can_stats.bus_error++;
+ cdev->can.can_stats.bus_error++;
stats->rx_errors++;
/* propagate the error condition to the CAN stack */
@@ -604,51 +604,51 @@ static int m_can_handle_lec_err(struct net_device *dev,
static int __m_can_get_berr_counter(const struct net_device *dev,
struct can_berr_counter *bec)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
unsigned int ecr;
- ecr = m_can_read(priv, M_CAN_ECR);
+ ecr = m_can_read(cdev, M_CAN_ECR);
bec->rxerr = (ecr & ECR_REC_MASK) >> ECR_REC_SHIFT;
bec->txerr = (ecr & ECR_TEC_MASK) >> ECR_TEC_SHIFT;
return 0;
}
-static int m_can_clk_start(struct m_can_priv *priv)
+static int m_can_clk_start(struct m_can_classdev *cdev)
{
int err;
- if (priv->pm_clock_support == 0)
+ if (cdev->pm_clock_support == 0)
return 0;
- err = pm_runtime_get_sync(priv->dev);
+ err = pm_runtime_get_sync(cdev->dev);
if (err < 0) {
- pm_runtime_put_noidle(priv->dev);
+ pm_runtime_put_noidle(cdev->dev);
return err;
}
return 0;
}
-static void m_can_clk_stop(struct m_can_priv *priv)
+static void m_can_clk_stop(struct m_can_classdev *cdev)
{
- if (priv->pm_clock_support)
- pm_runtime_put_sync(priv->dev);
+ if (cdev->pm_clock_support)
+ pm_runtime_put_sync(cdev->dev);
}
static int m_can_get_berr_counter(const struct net_device *dev,
struct can_berr_counter *bec)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
int err;
- err = m_can_clk_start(priv);
+ err = m_can_clk_start(cdev);
if (err)
return err;
__m_can_get_berr_counter(dev, bec);
- m_can_clk_stop(priv);
+ m_can_clk_stop(cdev);
return 0;
}
@@ -656,7 +656,7 @@ static int m_can_get_berr_counter(const struct net_device *dev,
static int m_can_handle_state_change(struct net_device *dev,
enum can_state new_state)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
struct net_device_stats *stats = &dev->stats;
struct can_frame *cf;
struct sk_buff *skb;
@@ -666,19 +666,19 @@ static int m_can_handle_state_change(struct net_device *dev,
switch (new_state) {
case CAN_STATE_ERROR_ACTIVE:
/* error warning state */
- priv->can.can_stats.error_warning++;
- priv->can.state = CAN_STATE_ERROR_WARNING;
+ cdev->can.can_stats.error_warning++;
+ cdev->can.state = CAN_STATE_ERROR_WARNING;
break;
case CAN_STATE_ERROR_PASSIVE:
/* error passive state */
- priv->can.can_stats.error_passive++;
- priv->can.state = CAN_STATE_ERROR_PASSIVE;
+ cdev->can.can_stats.error_passive++;
+ cdev->can.state = CAN_STATE_ERROR_PASSIVE;
break;
case CAN_STATE_BUS_OFF:
/* bus-off state */
- priv->can.state = CAN_STATE_BUS_OFF;
- m_can_disable_all_interrupts(priv);
- priv->can.can_stats.bus_off++;
+ cdev->can.state = CAN_STATE_BUS_OFF;
+ m_can_disable_all_interrupts(cdev);
+ cdev->can.can_stats.bus_off++;
can_bus_off(dev);
break;
default:
@@ -705,7 +705,7 @@ static int m_can_handle_state_change(struct net_device *dev,
case CAN_STATE_ERROR_PASSIVE:
/* error passive state */
cf->can_id |= CAN_ERR_CRTL;
- ecr = m_can_read(priv, M_CAN_ECR);
+ ecr = m_can_read(cdev, M_CAN_ECR);
if (ecr & ECR_RP)
cf->data[1] |= CAN_ERR_CRTL_RX_PASSIVE;
if (bec.txerr > 127)
@@ -730,25 +730,25 @@ static int m_can_handle_state_change(struct net_device *dev,
static int m_can_handle_state_errors(struct net_device *dev, u32 psr)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
int work_done = 0;
if ((psr & PSR_EW) &&
- (priv->can.state != CAN_STATE_ERROR_WARNING)) {
+ (cdev->can.state != CAN_STATE_ERROR_WARNING)) {
netdev_dbg(dev, "entered error warning state\n");
work_done += m_can_handle_state_change(dev,
CAN_STATE_ERROR_WARNING);
}
if ((psr & PSR_EP) &&
- (priv->can.state != CAN_STATE_ERROR_PASSIVE)) {
+ (cdev->can.state != CAN_STATE_ERROR_PASSIVE)) {
netdev_dbg(dev, "entered error passive state\n");
work_done += m_can_handle_state_change(dev,
CAN_STATE_ERROR_PASSIVE);
}
if ((psr & PSR_BO) &&
- (priv->can.state != CAN_STATE_BUS_OFF)) {
+ (cdev->can.state != CAN_STATE_BUS_OFF)) {
netdev_dbg(dev, "entered error bus off state\n");
work_done += m_can_handle_state_change(dev,
CAN_STATE_BUS_OFF);
@@ -783,14 +783,14 @@ static inline bool is_lec_err(u32 psr)
static int m_can_handle_bus_errors(struct net_device *dev, u32 irqstatus,
u32 psr)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
int work_done = 0;
if (irqstatus & IR_RF0L)
work_done += m_can_handle_lost_msg(dev);
/* handle lec errors on the bus */
- if ((priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING) &&
+ if ((cdev->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING) &&
is_lec_err(psr))
work_done += m_can_handle_lec_err(dev, psr & LEC_UNUSED);
@@ -802,15 +802,15 @@ static int m_can_handle_bus_errors(struct net_device *dev, u32 irqstatus,
static int m_can_rx_handler(struct net_device *dev, int quota)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
int work_done = 0;
u32 irqstatus, psr;
- irqstatus = priv->irqstatus | m_can_read(priv, M_CAN_IR);
+ irqstatus = cdev->irqstatus | m_can_read(cdev, M_CAN_IR);
if (!irqstatus)
goto end;
- psr = m_can_read(priv, M_CAN_PSR);
+ psr = m_can_read(cdev, M_CAN_PSR);
if (irqstatus & IR_ERR_STATE)
work_done += m_can_handle_state_errors(dev, psr);
@@ -825,11 +825,11 @@ static int m_can_rx_handler(struct net_device *dev, int quota)
static int m_can_rx_peripheral(struct net_device *dev)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
m_can_rx_handler(dev, 1);
- m_can_enable_all_interrupts(priv);
+ m_can_enable_all_interrupts(cdev);
return 0;
}
@@ -837,13 +837,13 @@ static int m_can_rx_peripheral(struct net_device *dev)
static int m_can_poll(struct napi_struct *napi, int quota)
{
struct net_device *dev = napi->dev;
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
int work_done;
work_done = m_can_rx_handler(dev, quota);
if (work_done < quota) {
napi_complete_done(napi, work_done);
- m_can_enable_all_interrupts(priv);
+ m_can_enable_all_interrupts(cdev);
}
return work_done;
@@ -857,11 +857,11 @@ static void m_can_echo_tx_event(struct net_device *dev)
int i = 0;
unsigned int msg_mark;
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
struct net_device_stats *stats = &dev->stats;
/* read tx event fifo status */
- m_can_txefs = m_can_read(priv, M_CAN_TXEFS);
+ m_can_txefs = m_can_read(cdev, M_CAN_TXEFS);
/* Get Tx Event fifo element count */
txe_count = (m_can_txefs & TXEFS_EFFL_MASK)
@@ -870,15 +870,15 @@ static void m_can_echo_tx_event(struct net_device *dev)
/* Get and process all sent elements */
for (i = 0; i < txe_count; i++) {
/* retrieve get index */
- fgi = (m_can_read(priv, M_CAN_TXEFS) & TXEFS_EFGI_MASK)
+ fgi = (m_can_read(cdev, M_CAN_TXEFS) & TXEFS_EFGI_MASK)
>> TXEFS_EFGI_SHIFT;
/* get message marker */
- msg_mark = (m_can_txe_fifo_read(priv, fgi, 4) &
+ msg_mark = (m_can_txe_fifo_read(cdev, fgi, 4) &
TX_EVENT_MM_MASK) >> TX_EVENT_MM_SHIFT;
/* ack txe element */
- m_can_write(priv, M_CAN_TXEFA, (TXEFA_EFAI_MASK &
+ m_can_write(cdev, M_CAN_TXEFA, (TXEFA_EFAI_MASK &
(fgi << TXEFA_EFAI_SHIFT)));
/* update stats */
@@ -890,20 +890,20 @@ static void m_can_echo_tx_event(struct net_device *dev)
static irqreturn_t m_can_isr(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
struct net_device_stats *stats = &dev->stats;
u32 ir;
- ir = m_can_read(priv, M_CAN_IR);
+ ir = m_can_read(cdev, M_CAN_IR);
if (!ir)
return IRQ_NONE;
/* ACK all irqs */
if (ir & IR_ALL_INT)
- m_can_write(priv, M_CAN_IR, ir);
+ m_can_write(cdev, M_CAN_IR, ir);
- if (priv->ops->clear_interrupts)
- priv->ops->clear_interrupts(priv);
+ if (cdev->ops->clear_interrupts)
+ cdev->ops->clear_interrupts(cdev);
/* schedule NAPI in case of
* - rx IRQ
@@ -911,15 +911,15 @@ static irqreturn_t m_can_isr(int irq, void *dev_id)
* - bus error IRQ and bus error reporting
*/
if ((ir & IR_RF0N) || (ir & IR_ERR_ALL_30X)) {
- priv->irqstatus = ir;
- m_can_disable_all_interrupts(priv);
- if (!priv->is_peripheral)
- napi_schedule(&priv->napi);
+ cdev->irqstatus = ir;
+ m_can_disable_all_interrupts(cdev);
+ if (!cdev->is_peripheral)
+ napi_schedule(&cdev->napi);
else
m_can_rx_peripheral(dev);
}
- if (priv->version == 30) {
+ if (cdev->version == 30) {
if (ir & IR_TC) {
/* Transmission Complete Interrupt*/
stats->tx_bytes += can_get_echo_skb(dev, 0);
@@ -933,7 +933,7 @@ static irqreturn_t m_can_isr(int irq, void *dev_id)
m_can_echo_tx_event(dev);
can_led_event(dev, CAN_LED_EVENT_TX);
if (netif_queue_stopped(dev) &&
- !m_can_tx_fifo_full(priv))
+ !m_can_tx_fifo_full(cdev))
netif_wake_queue(dev);
}
}
@@ -991,9 +991,9 @@ static const struct can_bittiming_const m_can_data_bittiming_const_31X = {
static int m_can_set_bittiming(struct net_device *dev)
{
- struct m_can_priv *priv = netdev_priv(dev);
- const struct can_bittiming *bt = &priv->can.bittiming;
- const struct can_bittiming *dbt = &priv->can.data_bittiming;
+ struct m_can_classdev *cdev = netdev_priv(dev);
+ const struct can_bittiming *bt = &cdev->can.bittiming;
+ const struct can_bittiming *dbt = &cdev->can.data_bittiming;
u16 brp, sjw, tseg1, tseg2;
u32 reg_btp;
@@ -1003,9 +1003,9 @@ static int m_can_set_bittiming(struct net_device *dev)
tseg2 = bt->phase_seg2 - 1;
reg_btp = (brp << NBTP_NBRP_SHIFT) | (sjw << NBTP_NSJW_SHIFT) |
(tseg1 << NBTP_NTSEG1_SHIFT) | (tseg2 << NBTP_NTSEG2_SHIFT);
- m_can_write(priv, M_CAN_NBTP, reg_btp);
+ m_can_write(cdev, M_CAN_NBTP, reg_btp);
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD) {
+ if (cdev->can.ctrlmode & CAN_CTRLMODE_FD) {
reg_btp = 0;
brp = dbt->brp - 1;
sjw = dbt->sjw - 1;
@@ -1027,7 +1027,7 @@ static int m_can_set_bittiming(struct net_device *dev)
/* Equation based on Bosch's M_CAN User Manual's
* Transmitter Delay Compensation Section
*/
- tdco = (priv->can.clock.freq / 1000) *
+ tdco = (cdev->can.clock.freq / 1000) *
ssp / dbt->bitrate;
/* Max valid TDCO value is 127 */
@@ -1038,7 +1038,7 @@ static int m_can_set_bittiming(struct net_device *dev)
}
reg_btp |= DBTP_TDC;
- m_can_write(priv, M_CAN_TDCR,
+ m_can_write(cdev, M_CAN_TDCR,
tdco << TDCR_TDCO_SHIFT);
}
@@ -1047,7 +1047,7 @@ static int m_can_set_bittiming(struct net_device *dev)
(tseg1 << DBTP_DTSEG1_SHIFT) |
(tseg2 << DBTP_DTSEG2_SHIFT);
- m_can_write(priv, M_CAN_DBTP, reg_btp);
+ m_can_write(cdev, M_CAN_DBTP, reg_btp);
}
return 0;
@@ -1064,63 +1064,63 @@ static int m_can_set_bittiming(struct net_device *dev)
*/
static void m_can_chip_config(struct net_device *dev)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
u32 cccr, test;
- m_can_config_endisable(priv, true);
+ m_can_config_endisable(cdev, true);
/* RX Buffer/FIFO Element Size 64 bytes data field */
- m_can_write(priv, M_CAN_RXESC, M_CAN_RXESC_64BYTES);
+ m_can_write(cdev, M_CAN_RXESC, M_CAN_RXESC_64BYTES);
/* Accept Non-matching Frames Into FIFO 0 */
- m_can_write(priv, M_CAN_GFC, 0x0);
+ m_can_write(cdev, M_CAN_GFC, 0x0);
- if (priv->version == 30) {
+ if (cdev->version == 30) {
/* only support one Tx Buffer currently */
- m_can_write(priv, M_CAN_TXBC, (1 << TXBC_NDTB_SHIFT) |
- priv->mcfg[MRAM_TXB].off);
+ m_can_write(cdev, M_CAN_TXBC, (1 << TXBC_NDTB_SHIFT) |
+ cdev->mcfg[MRAM_TXB].off);
} else {
/* TX FIFO is used for newer IP Core versions */
- m_can_write(priv, M_CAN_TXBC,
- (priv->mcfg[MRAM_TXB].num << TXBC_TFQS_SHIFT) |
- (priv->mcfg[MRAM_TXB].off));
+ m_can_write(cdev, M_CAN_TXBC,
+ (cdev->mcfg[MRAM_TXB].num << TXBC_TFQS_SHIFT) |
+ (cdev->mcfg[MRAM_TXB].off));
}
/* support 64 bytes payload */
- m_can_write(priv, M_CAN_TXESC, TXESC_TBDS_64BYTES);
+ m_can_write(cdev, M_CAN_TXESC, TXESC_TBDS_64BYTES);
/* TX Event FIFO */
- if (priv->version == 30) {
- m_can_write(priv, M_CAN_TXEFC, (1 << TXEFC_EFS_SHIFT) |
- priv->mcfg[MRAM_TXE].off);
+ if (cdev->version == 30) {
+ m_can_write(cdev, M_CAN_TXEFC, (1 << TXEFC_EFS_SHIFT) |
+ cdev->mcfg[MRAM_TXE].off);
} else {
/* Full TX Event FIFO is used */
- m_can_write(priv, M_CAN_TXEFC,
- ((priv->mcfg[MRAM_TXE].num << TXEFC_EFS_SHIFT)
+ m_can_write(cdev, M_CAN_TXEFC,
+ ((cdev->mcfg[MRAM_TXE].num << TXEFC_EFS_SHIFT)
& TXEFC_EFS_MASK) |
- priv->mcfg[MRAM_TXE].off);
+ cdev->mcfg[MRAM_TXE].off);
}
/* rx fifo configuration, blocking mode, fifo size 1 */
- m_can_write(priv, M_CAN_RXF0C,
- (priv->mcfg[MRAM_RXF0].num << RXFC_FS_SHIFT) |
- priv->mcfg[MRAM_RXF0].off);
+ m_can_write(cdev, M_CAN_RXF0C,
+ (cdev->mcfg[MRAM_RXF0].num << RXFC_FS_SHIFT) |
+ cdev->mcfg[MRAM_RXF0].off);
- m_can_write(priv, M_CAN_RXF1C,
- (priv->mcfg[MRAM_RXF1].num << RXFC_FS_SHIFT) |
- priv->mcfg[MRAM_RXF1].off);
+ m_can_write(cdev, M_CAN_RXF1C,
+ (cdev->mcfg[MRAM_RXF1].num << RXFC_FS_SHIFT) |
+ cdev->mcfg[MRAM_RXF1].off);
- cccr = m_can_read(priv, M_CAN_CCCR);
- test = m_can_read(priv, M_CAN_TEST);
+ cccr = m_can_read(cdev, M_CAN_CCCR);
+ test = m_can_read(cdev, M_CAN_TEST);
test &= ~TEST_LBCK;
- if (priv->version == 30) {
+ if (cdev->version == 30) {
/* Version 3.0.x */
cccr &= ~(CCCR_TEST | CCCR_MON |
(CCCR_CMR_MASK << CCCR_CMR_SHIFT) |
(CCCR_CME_MASK << CCCR_CME_SHIFT));
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD)
+ if (cdev->can.ctrlmode & CAN_CTRLMODE_FD)
cccr |= CCCR_CME_CANFD_BRS << CCCR_CME_SHIFT;
} else {
@@ -1129,61 +1129,61 @@ static void m_can_chip_config(struct net_device *dev)
CCCR_NISO);
/* Only 3.2.x has NISO Bit implemented */
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD_NON_ISO)
+ if (cdev->can.ctrlmode & CAN_CTRLMODE_FD_NON_ISO)
cccr |= CCCR_NISO;
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD)
+ if (cdev->can.ctrlmode & CAN_CTRLMODE_FD)
cccr |= (CCCR_BRSE | CCCR_FDOE);
}
/* Loopback Mode */
- if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK) {
+ if (cdev->can.ctrlmode & CAN_CTRLMODE_LOOPBACK) {
cccr |= CCCR_TEST | CCCR_MON;
test |= TEST_LBCK;
}
/* Enable Monitoring (all versions) */
- if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
+ if (cdev->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
cccr |= CCCR_MON;
/* Write config */
- m_can_write(priv, M_CAN_CCCR, cccr);
- m_can_write(priv, M_CAN_TEST, test);
+ m_can_write(cdev, M_CAN_CCCR, cccr);
+ m_can_write(cdev, M_CAN_TEST, test);
/* Enable interrupts */
- m_can_write(priv, M_CAN_IR, IR_ALL_INT);
- if (!(priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING))
- if (priv->version == 30)
- m_can_write(priv, M_CAN_IE, IR_ALL_INT &
+ m_can_write(cdev, M_CAN_IR, IR_ALL_INT);
+ if (!(cdev->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING))
+ if (cdev->version == 30)
+ m_can_write(cdev, M_CAN_IE, IR_ALL_INT &
~(IR_ERR_LEC_30X));
else
- m_can_write(priv, M_CAN_IE, IR_ALL_INT &
+ m_can_write(cdev, M_CAN_IE, IR_ALL_INT &
~(IR_ERR_LEC_31X));
else
- m_can_write(priv, M_CAN_IE, IR_ALL_INT);
+ m_can_write(cdev, M_CAN_IE, IR_ALL_INT);
/* route all interrupts to INT0 */
- m_can_write(priv, M_CAN_ILS, ILS_ALL_INT0);
+ m_can_write(cdev, M_CAN_ILS, ILS_ALL_INT0);
/* set bittiming params */
m_can_set_bittiming(dev);
- m_can_config_endisable(priv, false);
+ m_can_config_endisable(cdev, false);
- if (priv->ops->init)
- priv->ops->init(priv);
+ if (cdev->ops->init)
+ cdev->ops->init(cdev);
}
static void m_can_start(struct net_device *dev)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
/* basic m_can configuration */
m_can_chip_config(dev);
- priv->can.state = CAN_STATE_ERROR_ACTIVE;
+ cdev->can.state = CAN_STATE_ERROR_ACTIVE;
- m_can_enable_all_interrupts(priv);
+ m_can_enable_all_interrupts(cdev);
}
static int m_can_set_mode(struct net_device *dev, enum can_mode mode)
@@ -1206,7 +1206,7 @@ static int m_can_set_mode(struct net_device *dev, enum can_mode mode)
* else it returns the release and step coded as:
* return value = 10 * <release> + 1 * <step>
*/
-static int m_can_check_core_release(struct m_can_priv *priv)
+static int m_can_check_core_release(struct m_can_classdev *cdev)
{
u32 crel_reg;
u8 rel;
@@ -1216,7 +1216,7 @@ static int m_can_check_core_release(struct m_can_priv *priv)
/* Read Core Release Version and split into version number
* Example: Version 3.2.1 => rel = 3; step = 2; substep = 1;
*/
- crel_reg = m_can_read(priv, M_CAN_CREL);
+ crel_reg = m_can_read(cdev, M_CAN_CREL);
rel = (u8)((crel_reg & CREL_REL_MASK) >> CREL_REL_SHIFT);
step = (u8)((crel_reg & CREL_STEP_MASK) >> CREL_STEP_SHIFT);
@@ -1234,19 +1234,19 @@ static int m_can_check_core_release(struct m_can_priv *priv)
/* Selectable Non ISO support only in version 3.2.x
* This function checks if the bit is writable.
*/
-static bool m_can_niso_supported(struct m_can_priv *priv)
+static bool m_can_niso_supported(struct m_can_classdev *cdev)
{
u32 cccr_reg, cccr_poll = 0;
int niso_timeout = -ETIMEDOUT;
int i;
- m_can_config_endisable(priv, true);
- cccr_reg = m_can_read(priv, M_CAN_CCCR);
+ m_can_config_endisable(cdev, true);
+ cccr_reg = m_can_read(cdev, M_CAN_CCCR);
cccr_reg |= CCCR_NISO;
- m_can_write(priv, M_CAN_CCCR, cccr_reg);
+ m_can_write(cdev, M_CAN_CCCR, cccr_reg);
for (i = 0; i <= 10; i++) {
- cccr_poll = m_can_read(priv, M_CAN_CCCR);
+ cccr_poll = m_can_read(cdev, M_CAN_CCCR);
if (cccr_poll == cccr_reg) {
niso_timeout = 0;
break;
@@ -1257,15 +1257,15 @@ static bool m_can_niso_supported(struct m_can_priv *priv)
/* Clear NISO */
cccr_reg &= ~(CCCR_NISO);
- m_can_write(priv, M_CAN_CCCR, cccr_reg);
+ m_can_write(cdev, M_CAN_CCCR, cccr_reg);
- m_can_config_endisable(priv, false);
+ m_can_config_endisable(cdev, false);
/* return false if time out (-ETIMEDOUT), else return true */
return !niso_timeout;
}
-static int m_can_dev_setup(struct m_can_priv *m_can_dev)
+static int m_can_dev_setup(struct m_can_classdev *m_can_dev)
{
struct net_device *dev = m_can_dev->net;
int m_can_version;
@@ -1342,30 +1342,32 @@ static int m_can_dev_setup(struct m_can_priv *m_can_dev)
static void m_can_stop(struct net_device *dev)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
/* disable all interrupts */
- m_can_disable_all_interrupts(priv);
+ m_can_disable_all_interrupts(cdev);
/* set the state as STOPPED */
- priv->can.state = CAN_STATE_STOPPED;
+ cdev->can.state = CAN_STATE_STOPPED;
}
static int m_can_close(struct net_device *dev)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
netif_stop_queue(dev);
- if (!priv->is_peripheral)
- napi_disable(&priv->napi);
+
+ if (!cdev->is_peripheral)
+ napi_disable(&cdev->napi);
+
m_can_stop(dev);
- m_can_clk_stop(priv);
+ m_can_clk_stop(cdev);
free_irq(dev->irq, dev);
- if (priv->is_peripheral) {
- priv->tx_skb = NULL;
- destroy_workqueue(priv->tx_wq);
- priv->tx_wq = NULL;
+ if (cdev->is_peripheral) {
+ cdev->tx_skb = NULL;
+ destroy_workqueue(cdev->tx_wq);
+ cdev->tx_wq = NULL;
}
close_candev(dev);
@@ -1376,23 +1378,23 @@ static int m_can_close(struct net_device *dev)
static int m_can_next_echo_skb_occupied(struct net_device *dev, int putidx)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
/*get wrap around for loopback skb index */
- unsigned int wrap = priv->can.echo_skb_max;
+ unsigned int wrap = cdev->can.echo_skb_max;
int next_idx;
/* calculate next index */
next_idx = (++putidx >= wrap ? 0 : putidx);
/* check if occupied */
- return !!priv->can.echo_skb[next_idx];
+ return !!cdev->can.echo_skb[next_idx];
}
-static netdev_tx_t m_can_tx_handler(struct m_can_priv *priv)
+static netdev_tx_t m_can_tx_handler(struct m_can_classdev *cdev)
{
- struct canfd_frame *cf = (struct canfd_frame *)priv->tx_skb->data;
- struct net_device *dev = priv->net;
- struct sk_buff *skb = priv->tx_skb;
+ struct canfd_frame *cf = (struct canfd_frame *)cdev->tx_skb->data;
+ struct net_device *dev = cdev->net;
+ struct sk_buff *skb = cdev->tx_skb;
u32 id, cccr, fdflags;
int i;
int putidx;
@@ -1409,23 +1411,23 @@ static netdev_tx_t m_can_tx_handler(struct m_can_priv *priv)
if (cf->can_id & CAN_RTR_FLAG)
id |= TX_BUF_RTR;
- if (priv->version == 30) {
+ if (cdev->version == 30) {
netif_stop_queue(dev);
/* message ram configuration */
- m_can_fifo_write(priv, 0, M_CAN_FIFO_ID, id);
- m_can_fifo_write(priv, 0, M_CAN_FIFO_DLC,
+ m_can_fifo_write(cdev, 0, M_CAN_FIFO_ID, id);
+ m_can_fifo_write(cdev, 0, M_CAN_FIFO_DLC,
can_len2dlc(cf->len) << 16);
for (i = 0; i < cf->len; i += 4)
- m_can_fifo_write(priv, 0,
+ m_can_fifo_write(cdev, 0,
M_CAN_FIFO_DATA(i / 4),
*(u32 *)(cf->data + i));
can_put_echo_skb(skb, dev, 0);
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD) {
- cccr = m_can_read(priv, M_CAN_CCCR);
+ if (cdev->can.ctrlmode & CAN_CTRLMODE_FD) {
+ cccr = m_can_read(cdev, M_CAN_CCCR);
cccr &= ~(CCCR_CMR_MASK << CCCR_CMR_SHIFT);
if (can_is_canfd_skb(skb)) {
if (cf->flags & CANFD_BRS)
@@ -1437,21 +1439,22 @@ static netdev_tx_t m_can_tx_handler(struct m_can_priv *priv)
} else {
cccr |= CCCR_CMR_CAN << CCCR_CMR_SHIFT;
}
- m_can_write(priv, M_CAN_CCCR, cccr);
+ m_can_write(cdev, M_CAN_CCCR, cccr);
}
- m_can_write(priv, M_CAN_TXBTIE, 0x1);
- m_can_write(priv, M_CAN_TXBAR, 0x1);
+ m_can_write(cdev, M_CAN_TXBTIE, 0x1);
+ m_can_write(cdev, M_CAN_TXBAR, 0x1);
/* End of xmit function for version 3.0.x */
} else {
/* Transmit routine for version >= v3.1.x */
/* Check if FIFO full */
- if (m_can_tx_fifo_full(priv)) {
+ if (m_can_tx_fifo_full(cdev)) {
/* This shouldn't happen */
netif_stop_queue(dev);
netdev_warn(dev,
"TX queue active although FIFO is full.");
- if (priv->is_peripheral) {
+
+ if (cdev->is_peripheral) {
kfree_skb(skb);
dev->stats.tx_dropped++;
return NETDEV_TX_OK;
@@ -1461,10 +1464,10 @@ static netdev_tx_t m_can_tx_handler(struct m_can_priv *priv)
}
/* get put index for frame */
- putidx = ((m_can_read(priv, M_CAN_TXFQS) & TXFQS_TFQPI_MASK)
+ putidx = ((m_can_read(cdev, M_CAN_TXFQS) & TXFQS_TFQPI_MASK)
>> TXFQS_TFQPI_SHIFT);
/* Write ID Field to FIFO Element */
- m_can_fifo_write(priv, putidx, M_CAN_FIFO_ID, id);
+ m_can_fifo_write(cdev, putidx, M_CAN_FIFO_ID, id);
/* get CAN FD configuration of frame */
fdflags = 0;
@@ -1479,14 +1482,14 @@ static netdev_tx_t m_can_tx_handler(struct m_can_priv *priv)
* it is used in TX interrupt for
* sending the correct echo frame
*/
- m_can_fifo_write(priv, putidx, M_CAN_FIFO_DLC,
+ m_can_fifo_write(cdev, putidx, M_CAN_FIFO_DLC,
((putidx << TX_BUF_MM_SHIFT) &
TX_BUF_MM_MASK) |
(can_len2dlc(cf->len) << 16) |
fdflags | TX_BUF_EFC);
for (i = 0; i < cf->len; i += 4)
- m_can_fifo_write(priv, putidx, M_CAN_FIFO_DATA(i / 4),
+ m_can_fifo_write(cdev, putidx, M_CAN_FIFO_DATA(i / 4),
*(u32 *)(cf->data + i));
/* Push loopback echo.
@@ -1495,10 +1498,10 @@ static netdev_tx_t m_can_tx_handler(struct m_can_priv *priv)
can_put_echo_skb(skb, dev, putidx);
/* Enable TX FIFO element to start transfer */
- m_can_write(priv, M_CAN_TXBAR, (1 << putidx));
+ m_can_write(cdev, M_CAN_TXBAR, (1 << putidx));
/* stop network queue if fifo full */
- if (m_can_tx_fifo_full(priv) ||
+ if (m_can_tx_fifo_full(cdev) ||
m_can_next_echo_skb_occupied(dev, putidx))
netif_stop_queue(dev);
}
@@ -1508,27 +1511,28 @@ static netdev_tx_t m_can_tx_handler(struct m_can_priv *priv)
static void m_can_tx_work_queue(struct work_struct *ws)
{
- struct m_can_priv *priv = container_of(ws, struct m_can_priv,
+ struct m_can_classdev *cdev = container_of(ws, struct m_can_classdev,
tx_work);
- m_can_tx_handler(priv);
- priv->tx_skb = NULL;
+
+ m_can_tx_handler(cdev);
+ cdev->tx_skb = NULL;
}
static netdev_tx_t m_can_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
if (can_dropped_invalid_skb(dev, skb))
return NETDEV_TX_OK;
- if (priv->is_peripheral) {
- if (priv->tx_skb) {
+ if (cdev->is_peripheral) {
+ if (cdev->tx_skb) {
netdev_err(dev, "hard_xmit called while tx busy\n");
return NETDEV_TX_BUSY;
}
- if (priv->can.state == CAN_STATE_BUS_OFF) {
+ if (cdev->can.state == CAN_STATE_BUS_OFF) {
m_can_clean(dev);
} else {
/* Need to stop the queue to avoid numerous requests
@@ -1536,13 +1540,13 @@ static netdev_tx_t m_can_start_xmit(struct sk_buff *skb,
* a queueing mechanism that will queue the skbs and
* process them in order.
*/
- priv->tx_skb = skb;
- netif_stop_queue(priv->net);
- queue_work(priv->tx_wq, &priv->tx_work);
+ cdev->tx_skb = skb;
+ netif_stop_queue(cdev->net);
+ queue_work(cdev->tx_wq, &cdev->tx_work);
}
} else {
- priv->tx_skb = skb;
- return m_can_tx_handler(priv);
+ cdev->tx_skb = skb;
+ return m_can_tx_handler(cdev);
}
return NETDEV_TX_OK;
@@ -1550,10 +1554,10 @@ static netdev_tx_t m_can_start_xmit(struct sk_buff *skb,
static int m_can_open(struct net_device *dev)
{
- struct m_can_priv *priv = netdev_priv(dev);
+ struct m_can_classdev *cdev = netdev_priv(dev);
int err;
- err = m_can_clk_start(priv);
+ err = m_can_clk_start(cdev);
if (err)
return err;
@@ -1565,16 +1569,16 @@ static int m_can_open(struct net_device *dev)
}
/* register interrupt handler */
- if (priv->is_peripheral) {
- priv->tx_skb = NULL;
- priv->tx_wq = alloc_workqueue("mcan_wq",
+ if (cdev->is_peripheral) {
+ cdev->tx_skb = NULL;
+ cdev->tx_wq = alloc_workqueue("mcan_wq",
WQ_FREEZABLE | WQ_MEM_RECLAIM, 0);
- if (!priv->tx_wq) {
+ if (!cdev->tx_wq) {
err = -ENOMEM;
goto out_wq_fail;
}
- INIT_WORK(&priv->tx_work, m_can_tx_work_queue);
+ INIT_WORK(&cdev->tx_work, m_can_tx_work_queue);
err = request_threaded_irq(dev->irq, NULL, m_can_isr,
IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
@@ -1594,20 +1598,20 @@ static int m_can_open(struct net_device *dev)
can_led_event(dev, CAN_LED_EVENT_OPEN);
- if (!priv->is_peripheral)
- napi_enable(&priv->napi);
+ if (!cdev->is_peripheral)
+ napi_enable(&cdev->napi);
netif_start_queue(dev);
return 0;
exit_irq_fail:
- if (priv->is_peripheral)
- destroy_workqueue(priv->tx_wq);
+ if (cdev->is_peripheral)
+ destroy_workqueue(cdev->tx_wq);
out_wq_fail:
close_candev(dev);
exit_disable_clks:
- m_can_clk_stop(priv);
+ m_can_clk_stop(cdev);
return err;
}
@@ -1626,61 +1630,61 @@ static int register_m_can_dev(struct net_device *dev)
return register_candev(dev);
}
-static void m_can_of_parse_mram(struct m_can_priv *priv,
+static void m_can_of_parse_mram(struct m_can_classdev *cdev,
const u32 *mram_config_vals)
{
- priv->mcfg[MRAM_SIDF].off = mram_config_vals[0];
- priv->mcfg[MRAM_SIDF].num = mram_config_vals[1];
- priv->mcfg[MRAM_XIDF].off = priv->mcfg[MRAM_SIDF].off +
- priv->mcfg[MRAM_SIDF].num * SIDF_ELEMENT_SIZE;
- priv->mcfg[MRAM_XIDF].num = mram_config_vals[2];
- priv->mcfg[MRAM_RXF0].off = priv->mcfg[MRAM_XIDF].off +
- priv->mcfg[MRAM_XIDF].num * XIDF_ELEMENT_SIZE;
- priv->mcfg[MRAM_RXF0].num = mram_config_vals[3] &
+ cdev->mcfg[MRAM_SIDF].off = mram_config_vals[0];
+ cdev->mcfg[MRAM_SIDF].num = mram_config_vals[1];
+ cdev->mcfg[MRAM_XIDF].off = cdev->mcfg[MRAM_SIDF].off +
+ cdev->mcfg[MRAM_SIDF].num * SIDF_ELEMENT_SIZE;
+ cdev->mcfg[MRAM_XIDF].num = mram_config_vals[2];
+ cdev->mcfg[MRAM_RXF0].off = cdev->mcfg[MRAM_XIDF].off +
+ cdev->mcfg[MRAM_XIDF].num * XIDF_ELEMENT_SIZE;
+ cdev->mcfg[MRAM_RXF0].num = mram_config_vals[3] &
(RXFC_FS_MASK >> RXFC_FS_SHIFT);
- priv->mcfg[MRAM_RXF1].off = priv->mcfg[MRAM_RXF0].off +
- priv->mcfg[MRAM_RXF0].num * RXF0_ELEMENT_SIZE;
- priv->mcfg[MRAM_RXF1].num = mram_config_vals[4] &
+ cdev->mcfg[MRAM_RXF1].off = cdev->mcfg[MRAM_RXF0].off +
+ cdev->mcfg[MRAM_RXF0].num * RXF0_ELEMENT_SIZE;
+ cdev->mcfg[MRAM_RXF1].num = mram_config_vals[4] &
(RXFC_FS_MASK >> RXFC_FS_SHIFT);
- priv->mcfg[MRAM_RXB].off = priv->mcfg[MRAM_RXF1].off +
- priv->mcfg[MRAM_RXF1].num * RXF1_ELEMENT_SIZE;
- priv->mcfg[MRAM_RXB].num = mram_config_vals[5];
- priv->mcfg[MRAM_TXE].off = priv->mcfg[MRAM_RXB].off +
- priv->mcfg[MRAM_RXB].num * RXB_ELEMENT_SIZE;
- priv->mcfg[MRAM_TXE].num = mram_config_vals[6];
- priv->mcfg[MRAM_TXB].off = priv->mcfg[MRAM_TXE].off +
- priv->mcfg[MRAM_TXE].num * TXE_ELEMENT_SIZE;
- priv->mcfg[MRAM_TXB].num = mram_config_vals[7] &
+ cdev->mcfg[MRAM_RXB].off = cdev->mcfg[MRAM_RXF1].off +
+ cdev->mcfg[MRAM_RXF1].num * RXF1_ELEMENT_SIZE;
+ cdev->mcfg[MRAM_RXB].num = mram_config_vals[5];
+ cdev->mcfg[MRAM_TXE].off = cdev->mcfg[MRAM_RXB].off +
+ cdev->mcfg[MRAM_RXB].num * RXB_ELEMENT_SIZE;
+ cdev->mcfg[MRAM_TXE].num = mram_config_vals[6];
+ cdev->mcfg[MRAM_TXB].off = cdev->mcfg[MRAM_TXE].off +
+ cdev->mcfg[MRAM_TXE].num * TXE_ELEMENT_SIZE;
+ cdev->mcfg[MRAM_TXB].num = mram_config_vals[7] &
(TXBC_NDTB_MASK >> TXBC_NDTB_SHIFT);
- dev_dbg(priv->dev,
+ dev_dbg(cdev->dev,
"sidf 0x%x %d xidf 0x%x %d rxf0 0x%x %d rxf1 0x%x %d rxb 0x%x %d txe 0x%x %d txb 0x%x %d\n",
- priv->mcfg[MRAM_SIDF].off, priv->mcfg[MRAM_SIDF].num,
- priv->mcfg[MRAM_XIDF].off, priv->mcfg[MRAM_XIDF].num,
- priv->mcfg[MRAM_RXF0].off, priv->mcfg[MRAM_RXF0].num,
- priv->mcfg[MRAM_RXF1].off, priv->mcfg[MRAM_RXF1].num,
- priv->mcfg[MRAM_RXB].off, priv->mcfg[MRAM_RXB].num,
- priv->mcfg[MRAM_TXE].off, priv->mcfg[MRAM_TXE].num,
- priv->mcfg[MRAM_TXB].off, priv->mcfg[MRAM_TXB].num);
+ cdev->mcfg[MRAM_SIDF].off, cdev->mcfg[MRAM_SIDF].num,
+ cdev->mcfg[MRAM_XIDF].off, cdev->mcfg[MRAM_XIDF].num,
+ cdev->mcfg[MRAM_RXF0].off, cdev->mcfg[MRAM_RXF0].num,
+ cdev->mcfg[MRAM_RXF1].off, cdev->mcfg[MRAM_RXF1].num,
+ cdev->mcfg[MRAM_RXB].off, cdev->mcfg[MRAM_RXB].num,
+ cdev->mcfg[MRAM_TXE].off, cdev->mcfg[MRAM_TXE].num,
+ cdev->mcfg[MRAM_TXB].off, cdev->mcfg[MRAM_TXB].num);
}
-void m_can_init_ram(struct m_can_priv *priv)
+void m_can_init_ram(struct m_can_classdev *cdev)
{
int end, i, start;
/* initialize the entire Message RAM in use to avoid possible
* ECC/parity checksum errors when reading an uninitialized buffer
*/
- start = priv->mcfg[MRAM_SIDF].off;
- end = priv->mcfg[MRAM_TXB].off +
- priv->mcfg[MRAM_TXB].num * TXB_ELEMENT_SIZE;
+ start = cdev->mcfg[MRAM_SIDF].off;
+ end = cdev->mcfg[MRAM_TXB].off +
+ cdev->mcfg[MRAM_TXB].num * TXB_ELEMENT_SIZE;
for (i = start; i < end; i += 4)
- m_can_fifo_write_no_off(priv, i, 0x0);
+ m_can_fifo_write_no_off(cdev, i, 0x0);
}
EXPORT_SYMBOL_GPL(m_can_init_ram);
-int m_can_class_get_clocks(struct m_can_priv *m_can_dev)
+int m_can_class_get_clocks(struct m_can_classdev *m_can_dev)
{
int ret = 0;
@@ -1696,9 +1700,9 @@ int m_can_class_get_clocks(struct m_can_priv *m_can_dev)
}
EXPORT_SYMBOL_GPL(m_can_class_get_clocks);
-struct m_can_priv *m_can_class_allocate_dev(struct device *dev)
+struct m_can_classdev *m_can_class_allocate_dev(struct device *dev)
{
- struct m_can_priv *class_dev = NULL;
+ struct m_can_classdev *class_dev = NULL;
u32 mram_config_vals[MRAM_CFG_LEN];
struct net_device *net_dev;
u32 tx_fifo_size;
@@ -1727,7 +1731,7 @@ struct m_can_priv *m_can_class_allocate_dev(struct device *dev)
class_dev = netdev_priv(net_dev);
if (!class_dev) {
- dev_err(dev, "Failed to init netdev private");
+ dev_err(dev, "Failed to init netdev cdevate");
goto out;
}
@@ -1741,7 +1745,7 @@ struct m_can_priv *m_can_class_allocate_dev(struct device *dev)
}
EXPORT_SYMBOL_GPL(m_can_class_allocate_dev);
-int m_can_class_register(struct m_can_priv *m_can_dev)
+int m_can_class_register(struct m_can_classdev *m_can_dev)
{
int ret;
@@ -1789,18 +1793,18 @@ EXPORT_SYMBOL_GPL(m_can_class_register);
int m_can_class_suspend(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
- struct m_can_priv *priv = netdev_priv(ndev);
+ struct m_can_classdev *cdev = netdev_priv(ndev);
if (netif_running(ndev)) {
netif_stop_queue(ndev);
netif_device_detach(ndev);
m_can_stop(ndev);
- m_can_clk_stop(priv);
+ m_can_clk_stop(cdev);
}
pinctrl_pm_select_sleep_state(dev);
- priv->can.state = CAN_STATE_SLEEPING;
+ cdev->can.state = CAN_STATE_SLEEPING;
return 0;
}
@@ -1809,20 +1813,20 @@ EXPORT_SYMBOL_GPL(m_can_class_suspend);
int m_can_class_resume(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
- struct m_can_priv *priv = netdev_priv(ndev);
+ struct m_can_classdev *cdev = netdev_priv(ndev);
pinctrl_pm_select_default_state(dev);
- priv->can.state = CAN_STATE_ERROR_ACTIVE;
+ cdev->can.state = CAN_STATE_ERROR_ACTIVE;
if (netif_running(ndev)) {
int ret;
- ret = m_can_clk_start(priv);
+ ret = m_can_clk_start(cdev);
if (ret)
return ret;
- m_can_init_ram(priv);
+ m_can_init_ram(cdev);
m_can_start(ndev);
netif_device_attach(ndev);
netif_start_queue(ndev);
@@ -1832,7 +1836,7 @@ int m_can_class_resume(struct device *dev)
}
EXPORT_SYMBOL_GPL(m_can_class_resume);
-void m_can_class_unregister(struct m_can_priv *m_can_dev)
+void m_can_class_unregister(struct m_can_classdev *m_can_dev)
{
unregister_candev(m_can_dev->net);
diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h
index 5671f5423887..49f42b50627a 100644
--- a/drivers/net/can/m_can/m_can.h
+++ b/drivers/net/can/m_can/m_can.h
@@ -57,19 +57,19 @@ struct mram_cfg {
u8 num;
};
-struct m_can_priv;
+struct m_can_classdev;
struct m_can_ops {
/* Device specific call backs */
- int (*clear_interrupts)(struct m_can_priv *m_can_class);
- u32 (*read_reg)(struct m_can_priv *m_can_class, int reg);
- int (*write_reg)(struct m_can_priv *m_can_class, int reg, int val);
- u32 (*read_fifo)(struct m_can_priv *m_can_class, int addr_offset);
- int (*write_fifo)(struct m_can_priv *m_can_class, int addr_offset,
+ int (*clear_interrupts)(struct m_can_classdev *cdev);
+ u32 (*read_reg)(struct m_can_classdev *cdev, int reg);
+ int (*write_reg)(struct m_can_classdev *cdev, int reg, int val);
+ u32 (*read_fifo)(struct m_can_classdev *cdev, int addr_offset);
+ int (*write_fifo)(struct m_can_classdev *cdev, int addr_offset,
int val);
- int (*init)(struct m_can_priv *m_can_class);
+ int (*init)(struct m_can_classdev *cdev);
};
-struct m_can_priv {
+struct m_can_classdev {
struct can_priv can;
struct napi_struct napi;
struct net_device *net;
@@ -98,12 +98,12 @@ struct m_can_priv {
struct mram_cfg mcfg[MRAM_CFG_NUM];
};
-struct m_can_priv *m_can_class_allocate_dev(struct device *dev);
-int m_can_class_register(struct m_can_priv *m_can_dev);
-void m_can_class_unregister(struct m_can_priv *m_can_dev);
-int m_can_class_get_clocks(struct m_can_priv *m_can_dev);
-void m_can_init_ram(struct m_can_priv *priv);
-void m_can_config_endisable(struct m_can_priv *priv, bool enable);
+struct m_can_classdev *m_can_class_allocate_dev(struct device *dev);
+int m_can_class_register(struct m_can_classdev *cdev);
+void m_can_class_unregister(struct m_can_classdev *cdev);
+int m_can_class_get_clocks(struct m_can_classdev *cdev);
+void m_can_init_ram(struct m_can_classdev *priv);
+void m_can_config_endisable(struct m_can_classdev *priv, bool enable);
int m_can_class_suspend(struct device *dev);
int m_can_class_resume(struct device *dev);
diff --git a/drivers/net/can/m_can/m_can_platform.c b/drivers/net/can/m_can/m_can_platform.c
index 026053f62f77..c2989e0431f2 100644
--- a/drivers/net/can/m_can/m_can_platform.c
+++ b/drivers/net/can/m_can/m_can_platform.c
@@ -14,7 +14,7 @@ struct m_can_plat_priv {
void __iomem *mram_base;
};
-static u32 iomap_read_reg(struct m_can_priv *cdev, int reg)
+static u32 iomap_read_reg(struct m_can_classdev *cdev, int reg)
{
struct m_can_plat_priv *priv =
(struct m_can_plat_priv *)cdev->device_data;
@@ -22,7 +22,7 @@ static u32 iomap_read_reg(struct m_can_priv *cdev, int reg)
return readl(priv->base + reg);
}
-static u32 iomap_read_fifo(struct m_can_priv *cdev, int offset)
+static u32 iomap_read_fifo(struct m_can_classdev *cdev, int offset)
{
struct m_can_plat_priv *priv =
(struct m_can_plat_priv *)cdev->device_data;
@@ -30,7 +30,7 @@ static u32 iomap_read_fifo(struct m_can_priv *cdev, int offset)
return readl(priv->mram_base + offset);
}
-static int iomap_write_reg(struct m_can_priv *cdev, int reg, int val)
+static int iomap_write_reg(struct m_can_classdev *cdev, int reg, int val)
{
struct m_can_plat_priv *priv =
(struct m_can_plat_priv *)cdev->device_data;
@@ -40,7 +40,7 @@ static int iomap_write_reg(struct m_can_priv *cdev, int reg, int val)
return 0;
}
-static int iomap_write_fifo(struct m_can_priv *cdev, int offset, int val)
+static int iomap_write_fifo(struct m_can_classdev *cdev, int offset, int val)
{
struct m_can_plat_priv *priv =
(struct m_can_plat_priv *)cdev->device_data;
@@ -59,7 +59,7 @@ static struct m_can_ops m_can_plat_ops = {
static int m_can_plat_probe(struct platform_device *pdev)
{
- struct m_can_priv *mcan_class;
+ struct m_can_classdev *mcan_class;
struct m_can_plat_priv *priv;
struct resource *res;
void __iomem *addr;
@@ -131,7 +131,7 @@ static __maybe_unused int m_can_resume(struct device *dev)
static int m_can_plat_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
- struct m_can_priv *mcan_class = netdev_priv(dev);
+ struct m_can_classdev *mcan_class = netdev_priv(dev);
m_can_class_unregister(mcan_class);
@@ -143,7 +143,7 @@ static int m_can_plat_remove(struct platform_device *pdev)
static int __maybe_unused m_can_runtime_suspend(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
- struct m_can_priv *mcan_class = netdev_priv(ndev);
+ struct m_can_classdev *mcan_class = netdev_priv(ndev);
m_can_class_suspend(dev);
@@ -156,7 +156,7 @@ static int __maybe_unused m_can_runtime_suspend(struct device *dev)
static int __maybe_unused m_can_runtime_resume(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
- struct m_can_priv *mcan_class = netdev_priv(ndev);
+ struct m_can_classdev *mcan_class = netdev_priv(ndev);
int err;
err = clk_prepare_enable(mcan_class->hclk);
--
2.21.0.5.gaeb582a983
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