caif-hsi: Replace platform device with ops structure.
Remove use of struct platform_device, and replace it with struct cfhsi_ops. Updated variable names in the same spirit: cfhsi_get_dev to cfhsi_get_ops, cfhsi->dev to cfhsi->ops and, cfhsi->dev.drv to cfhsi->ops->cb_ops. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sjur Brændeland
David S. Miller
parent
c412540063
commit
1c385f1fdf
2 changed files with 70 additions and 77 deletions
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@ -11,7 +11,6 @@
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/netdevice.h>
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#include <linux/string.h>
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#include <linux/list.h>
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@ -184,7 +183,7 @@ static int cfhsi_flush_fifo(struct cfhsi *cfhsi)
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__func__);
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do {
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ret = cfhsi->dev->cfhsi_fifo_occupancy(cfhsi->dev,
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ret = cfhsi->ops->cfhsi_fifo_occupancy(cfhsi->ops,
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&fifo_occupancy);
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if (ret) {
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netdev_warn(cfhsi->ndev,
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@ -197,8 +196,8 @@ static int cfhsi_flush_fifo(struct cfhsi *cfhsi)
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fifo_occupancy = min(sizeof(buffer), fifo_occupancy);
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set_bit(CFHSI_FLUSH_FIFO, &cfhsi->bits);
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ret = cfhsi->dev->cfhsi_rx(buffer, fifo_occupancy,
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cfhsi->dev);
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ret = cfhsi->ops->cfhsi_rx(buffer, fifo_occupancy,
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cfhsi->ops);
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if (ret) {
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clear_bit(CFHSI_FLUSH_FIFO, &cfhsi->bits);
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netdev_warn(cfhsi->ndev,
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@ -371,7 +370,7 @@ static void cfhsi_start_tx(struct cfhsi *cfhsi)
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}
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/* Set up new transfer. */
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res = cfhsi->dev->cfhsi_tx(cfhsi->tx_buf, len, cfhsi->dev);
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res = cfhsi->ops->cfhsi_tx(cfhsi->tx_buf, len, cfhsi->ops);
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if (WARN_ON(res < 0))
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netdev_err(cfhsi->ndev, "%s: TX error %d.\n",
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__func__, res);
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@ -410,11 +409,11 @@ static void cfhsi_tx_done(struct cfhsi *cfhsi)
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return;
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}
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static void cfhsi_tx_done_cb(struct cfhsi_drv *drv)
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static void cfhsi_tx_done_cb(struct cfhsi_cb_ops *cb_ops)
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{
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struct cfhsi *cfhsi;
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cfhsi = container_of(drv, struct cfhsi, drv);
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cfhsi = container_of(cb_ops, struct cfhsi, cb_ops);
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netdev_dbg(cfhsi->ndev, "%s.\n",
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__func__);
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@ -476,8 +475,8 @@ static int cfhsi_rx_desc(struct cfhsi_desc *desc, struct cfhsi *cfhsi)
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skb->dev = cfhsi->ndev;
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/*
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* We are called from a arch specific platform device.
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* Unfortunately we don't know what context we're
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* We are in a callback handler and
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* unfortunately we don't know what context we're
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* running in.
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*/
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if (in_interrupt())
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@ -607,7 +606,7 @@ static int cfhsi_rx_pld(struct cfhsi_desc *desc, struct cfhsi *cfhsi)
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skb->dev = cfhsi->ndev;
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/*
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* We're called from a platform device,
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* We're called in callback from HSI
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* and don't know the context we're running in.
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*/
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if (in_interrupt())
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@ -711,8 +710,8 @@ static void cfhsi_rx_done(struct cfhsi *cfhsi)
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netdev_dbg(cfhsi->ndev, "%s: Start RX.\n",
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__func__);
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res = cfhsi->dev->cfhsi_rx(rx_ptr, rx_len,
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cfhsi->dev);
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res = cfhsi->ops->cfhsi_rx(rx_ptr, rx_len,
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cfhsi->ops);
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if (WARN_ON(res < 0)) {
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netdev_err(cfhsi->ndev, "%s: RX error %d.\n",
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__func__, res);
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@ -765,11 +764,11 @@ static void cfhsi_rx_slowpath(unsigned long arg)
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cfhsi_rx_done(cfhsi);
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}
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static void cfhsi_rx_done_cb(struct cfhsi_drv *drv)
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static void cfhsi_rx_done_cb(struct cfhsi_cb_ops *cb_ops)
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{
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struct cfhsi *cfhsi;
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cfhsi = container_of(drv, struct cfhsi, drv);
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cfhsi = container_of(cb_ops, struct cfhsi, cb_ops);
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netdev_dbg(cfhsi->ndev, "%s.\n",
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__func__);
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@ -803,7 +802,7 @@ static void cfhsi_wake_up(struct work_struct *work)
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}
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/* Activate wake line. */
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cfhsi->dev->cfhsi_wake_up(cfhsi->dev);
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cfhsi->ops->cfhsi_wake_up(cfhsi->ops);
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netdev_dbg(cfhsi->ndev, "%s: Start waiting.\n",
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__func__);
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@ -819,7 +818,7 @@ static void cfhsi_wake_up(struct work_struct *work)
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__func__, ret);
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clear_bit(CFHSI_WAKE_UP, &cfhsi->bits);
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cfhsi->dev->cfhsi_wake_down(cfhsi->dev);
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cfhsi->ops->cfhsi_wake_down(cfhsi->ops);
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return;
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} else if (!ret) {
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bool ca_wake = false;
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@ -830,14 +829,14 @@ static void cfhsi_wake_up(struct work_struct *work)
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__func__);
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/* Check FIFO to check if modem has sent something. */
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WARN_ON(cfhsi->dev->cfhsi_fifo_occupancy(cfhsi->dev,
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WARN_ON(cfhsi->ops->cfhsi_fifo_occupancy(cfhsi->ops,
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&fifo_occupancy));
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netdev_dbg(cfhsi->ndev, "%s: Bytes in FIFO: %u.\n",
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__func__, (unsigned) fifo_occupancy);
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/* Check if we misssed the interrupt. */
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WARN_ON(cfhsi->dev->cfhsi_get_peer_wake(cfhsi->dev,
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WARN_ON(cfhsi->ops->cfhsi_get_peer_wake(cfhsi->ops,
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&ca_wake));
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if (ca_wake) {
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@ -852,7 +851,7 @@ static void cfhsi_wake_up(struct work_struct *work)
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}
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clear_bit(CFHSI_WAKE_UP, &cfhsi->bits);
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cfhsi->dev->cfhsi_wake_down(cfhsi->dev);
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cfhsi->ops->cfhsi_wake_down(cfhsi->ops);
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return;
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}
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wake_ack:
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@ -865,7 +864,7 @@ wake_ack:
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/* Resume read operation. */
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netdev_dbg(cfhsi->ndev, "%s: Start RX.\n", __func__);
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res = cfhsi->dev->cfhsi_rx(cfhsi->rx_ptr, cfhsi->rx_len, cfhsi->dev);
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res = cfhsi->ops->cfhsi_rx(cfhsi->rx_ptr, cfhsi->rx_len, cfhsi->ops);
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if (WARN_ON(res < 0))
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netdev_err(cfhsi->ndev, "%s: RX err %d.\n", __func__, res);
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@ -896,7 +895,7 @@ wake_ack:
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if (likely(len > 0)) {
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/* Set up new transfer. */
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res = cfhsi->dev->cfhsi_tx(cfhsi->tx_buf, len, cfhsi->dev);
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res = cfhsi->ops->cfhsi_tx(cfhsi->tx_buf, len, cfhsi->ops);
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if (WARN_ON(res < 0)) {
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netdev_err(cfhsi->ndev, "%s: TX error %d.\n",
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__func__, res);
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@ -923,7 +922,7 @@ static void cfhsi_wake_down(struct work_struct *work)
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return;
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/* Deactivate wake line. */
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cfhsi->dev->cfhsi_wake_down(cfhsi->dev);
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cfhsi->ops->cfhsi_wake_down(cfhsi->ops);
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/* Wait for acknowledge. */
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ret = CFHSI_WAKE_TOUT;
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@ -942,7 +941,7 @@ static void cfhsi_wake_down(struct work_struct *work)
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netdev_err(cfhsi->ndev, "%s: Timeout.\n", __func__);
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/* Check if we misssed the interrupt. */
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WARN_ON(cfhsi->dev->cfhsi_get_peer_wake(cfhsi->dev,
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WARN_ON(cfhsi->ops->cfhsi_get_peer_wake(cfhsi->ops,
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&ca_wake));
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if (!ca_wake)
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netdev_err(cfhsi->ndev, "%s: CA Wake missed !.\n",
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@ -951,7 +950,7 @@ static void cfhsi_wake_down(struct work_struct *work)
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/* Check FIFO occupancy. */
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while (retry) {
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WARN_ON(cfhsi->dev->cfhsi_fifo_occupancy(cfhsi->dev,
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WARN_ON(cfhsi->ops->cfhsi_fifo_occupancy(cfhsi->ops,
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&fifo_occupancy));
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if (!fifo_occupancy)
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@ -969,8 +968,7 @@ static void cfhsi_wake_down(struct work_struct *work)
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clear_bit(CFHSI_AWAKE, &cfhsi->bits);
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/* Cancel pending RX requests. */
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cfhsi->dev->cfhsi_rx_cancel(cfhsi->dev);
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cfhsi->ops->cfhsi_rx_cancel(cfhsi->ops);
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}
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static void cfhsi_out_of_sync(struct work_struct *work)
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@ -984,11 +982,11 @@ static void cfhsi_out_of_sync(struct work_struct *work)
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rtnl_unlock();
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}
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static void cfhsi_wake_up_cb(struct cfhsi_drv *drv)
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static void cfhsi_wake_up_cb(struct cfhsi_cb_ops *cb_ops)
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{
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struct cfhsi *cfhsi = NULL;
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cfhsi = container_of(drv, struct cfhsi, drv);
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cfhsi = container_of(cb_ops, struct cfhsi, cb_ops);
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netdev_dbg(cfhsi->ndev, "%s.\n",
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__func__);
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@ -1003,11 +1001,11 @@ static void cfhsi_wake_up_cb(struct cfhsi_drv *drv)
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queue_work(cfhsi->wq, &cfhsi->wake_up_work);
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}
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static void cfhsi_wake_down_cb(struct cfhsi_drv *drv)
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static void cfhsi_wake_down_cb(struct cfhsi_cb_ops *cb_ops)
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{
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struct cfhsi *cfhsi = NULL;
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cfhsi = container_of(drv, struct cfhsi, drv);
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cfhsi = container_of(cb_ops, struct cfhsi, cb_ops);
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netdev_dbg(cfhsi->ndev, "%s.\n",
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__func__);
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@ -1110,7 +1108,7 @@ static int cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
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WARN_ON(!len);
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/* Set up new transfer. */
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res = cfhsi->dev->cfhsi_tx(cfhsi->tx_buf, len, cfhsi->dev);
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res = cfhsi->ops->cfhsi_tx(cfhsi->tx_buf, len, cfhsi->ops);
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if (WARN_ON(res < 0)) {
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netdev_err(cfhsi->ndev, "%s: TX error %d.\n",
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__func__, res);
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@ -1125,19 +1123,19 @@ static int cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
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return 0;
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}
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static const struct net_device_ops cfhsi_ops;
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static const struct net_device_ops cfhsi_netdevops;
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static void cfhsi_setup(struct net_device *dev)
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{
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int i;
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struct cfhsi *cfhsi = netdev_priv(dev);
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dev->features = 0;
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dev->netdev_ops = &cfhsi_ops;
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dev->type = ARPHRD_CAIF;
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dev->flags = IFF_POINTOPOINT | IFF_NOARP;
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dev->mtu = CFHSI_MAX_CAIF_FRAME_SZ;
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dev->tx_queue_len = 0;
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dev->destructor = free_netdev;
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dev->netdev_ops = &cfhsi_netdevops;
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for (i = 0; i < CFHSI_PRIO_LAST; ++i)
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skb_queue_head_init(&cfhsi->qhead[i]);
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cfhsi->cfdev.link_select = CAIF_LINK_HIGH_BANDW;
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@ -1213,10 +1211,10 @@ static int cfhsi_open(struct net_device *ndev)
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spin_lock_init(&cfhsi->lock);
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/* Set up the driver. */
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cfhsi->drv.tx_done_cb = cfhsi_tx_done_cb;
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cfhsi->drv.rx_done_cb = cfhsi_rx_done_cb;
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cfhsi->drv.wake_up_cb = cfhsi_wake_up_cb;
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cfhsi->drv.wake_down_cb = cfhsi_wake_down_cb;
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cfhsi->cb_ops.tx_done_cb = cfhsi_tx_done_cb;
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cfhsi->cb_ops.rx_done_cb = cfhsi_rx_done_cb;
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cfhsi->cb_ops.wake_up_cb = cfhsi_wake_up_cb;
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cfhsi->cb_ops.wake_down_cb = cfhsi_wake_down_cb;
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/* Initialize the work queues. */
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INIT_WORK(&cfhsi->wake_up_work, cfhsi_wake_up);
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@ -1230,7 +1228,7 @@ static int cfhsi_open(struct net_device *ndev)
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clear_bit(CFHSI_AWAKE, &cfhsi->bits);
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/* Create work thread. */
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cfhsi->wq = create_singlethread_workqueue(cfhsi->pdev->name);
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cfhsi->wq = create_singlethread_workqueue(cfhsi->ndev->name);
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if (!cfhsi->wq) {
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netdev_err(cfhsi->ndev, "%s: Failed to create work queue.\n",
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__func__);
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@ -1257,7 +1255,7 @@ static int cfhsi_open(struct net_device *ndev)
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cfhsi->aggregation_timer.function = cfhsi_aggregation_tout;
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/* Activate HSI interface. */
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res = cfhsi->dev->cfhsi_up(cfhsi->dev);
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res = cfhsi->ops->cfhsi_up(cfhsi->ops);
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if (res) {
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netdev_err(cfhsi->ndev,
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"%s: can't activate HSI interface: %d.\n",
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@ -1275,7 +1273,7 @@ static int cfhsi_open(struct net_device *ndev)
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return res;
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err_net_reg:
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cfhsi->dev->cfhsi_down(cfhsi->dev);
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cfhsi->ops->cfhsi_down(cfhsi->ops);
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err_activate:
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destroy_workqueue(cfhsi->wq);
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err_create_wq:
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@ -1305,7 +1303,7 @@ static int cfhsi_close(struct net_device *ndev)
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del_timer_sync(&cfhsi->aggregation_timer);
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/* Cancel pending RX request (if any) */
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cfhsi->dev->cfhsi_rx_cancel(cfhsi->dev);
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cfhsi->ops->cfhsi_rx_cancel(cfhsi->ops);
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/* Destroy workqueue */
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destroy_workqueue(cfhsi->wq);
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@ -1318,7 +1316,7 @@ static int cfhsi_close(struct net_device *ndev)
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cfhsi_abort_tx(cfhsi);
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/* Deactivate interface */
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cfhsi->dev->cfhsi_down(cfhsi->dev);
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cfhsi->ops->cfhsi_down(cfhsi->ops);
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/* Free buffers. */
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kfree(tx_buf);
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@ -1335,7 +1333,7 @@ static void cfhsi_uninit(struct net_device *dev)
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list_del(&cfhsi->list);
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}
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static const struct net_device_ops cfhsi_ops = {
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static const struct net_device_ops cfhsi_netdevops = {
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.ndo_uninit = cfhsi_uninit,
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.ndo_open = cfhsi_open,
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.ndo_stop = cfhsi_close,
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@ -1419,7 +1417,7 @@ static int caif_hsi_newlink(struct net *src_net, struct net_device *dev,
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struct nlattr *tb[], struct nlattr *data[])
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{
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struct cfhsi *cfhsi = NULL;
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struct platform_device *(*get_dev)(void);
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struct cfhsi_ops *(*get_ops)(void);
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ASSERT_RTNL();
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@ -1427,36 +1425,31 @@ static int caif_hsi_newlink(struct net *src_net, struct net_device *dev,
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cfhsi_netlink_parms(data, cfhsi);
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dev_net_set(cfhsi->ndev, src_net);
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get_dev = symbol_get(cfhsi_get_device);
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if (!get_dev) {
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pr_err("%s: failed to get the cfhsi device symbol\n", __func__);
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get_ops = symbol_get(cfhsi_get_ops);
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if (!get_ops) {
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pr_err("%s: failed to get the cfhsi_ops\n", __func__);
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return -ENODEV;
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}
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/* Assign the HSI device. */
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cfhsi->pdev = (*get_dev)();
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if (!cfhsi->pdev) {
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pr_err("%s: failed to get the cfhsi device\n", __func__);
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cfhsi->ops = (*get_ops)();
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if (!cfhsi->ops) {
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pr_err("%s: failed to get the cfhsi_ops\n", __func__);
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goto err;
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}
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/* Assign the HSI device. */
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cfhsi->dev = cfhsi->pdev->dev.platform_data;
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/* Assign the driver to this HSI device. */
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cfhsi->dev->drv = &cfhsi->drv;
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cfhsi->ops->cb_ops = &cfhsi->cb_ops;
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if (register_netdevice(dev)) {
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pr_warn("%s: device rtml registration failed\n", __func__);
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pr_warn("%s: caif_hsi device registration failed\n", __func__);
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goto err;
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}
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/* Add CAIF HSI device to list. */
|
||||
list_add_tail(&cfhsi->list, &cfhsi_list);
|
||||
|
||||
return 0;
|
||||
err:
|
||||
symbol_put(cfhsi_get_device);
|
||||
symbol_put(cfhsi_get_ops);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -93,25 +93,25 @@ struct cfhsi_desc {
|
|||
#endif
|
||||
|
||||
/* Structure implemented by the CAIF HSI driver. */
|
||||
struct cfhsi_drv {
|
||||
void (*tx_done_cb) (struct cfhsi_drv *drv);
|
||||
void (*rx_done_cb) (struct cfhsi_drv *drv);
|
||||
void (*wake_up_cb) (struct cfhsi_drv *drv);
|
||||
void (*wake_down_cb) (struct cfhsi_drv *drv);
|
||||
struct cfhsi_cb_ops {
|
||||
void (*tx_done_cb) (struct cfhsi_cb_ops *drv);
|
||||
void (*rx_done_cb) (struct cfhsi_cb_ops *drv);
|
||||
void (*wake_up_cb) (struct cfhsi_cb_ops *drv);
|
||||
void (*wake_down_cb) (struct cfhsi_cb_ops *drv);
|
||||
};
|
||||
|
||||
/* Structure implemented by HSI device. */
|
||||
struct cfhsi_dev {
|
||||
int (*cfhsi_up) (struct cfhsi_dev *dev);
|
||||
int (*cfhsi_down) (struct cfhsi_dev *dev);
|
||||
int (*cfhsi_tx) (u8 *ptr, int len, struct cfhsi_dev *dev);
|
||||
int (*cfhsi_rx) (u8 *ptr, int len, struct cfhsi_dev *dev);
|
||||
int (*cfhsi_wake_up) (struct cfhsi_dev *dev);
|
||||
int (*cfhsi_wake_down) (struct cfhsi_dev *dev);
|
||||
int (*cfhsi_get_peer_wake) (struct cfhsi_dev *dev, bool *status);
|
||||
int (*cfhsi_fifo_occupancy)(struct cfhsi_dev *dev, size_t *occupancy);
|
||||
int (*cfhsi_rx_cancel)(struct cfhsi_dev *dev);
|
||||
struct cfhsi_drv *drv;
|
||||
struct cfhsi_ops {
|
||||
int (*cfhsi_up) (struct cfhsi_ops *dev);
|
||||
int (*cfhsi_down) (struct cfhsi_ops *dev);
|
||||
int (*cfhsi_tx) (u8 *ptr, int len, struct cfhsi_ops *dev);
|
||||
int (*cfhsi_rx) (u8 *ptr, int len, struct cfhsi_ops *dev);
|
||||
int (*cfhsi_wake_up) (struct cfhsi_ops *dev);
|
||||
int (*cfhsi_wake_down) (struct cfhsi_ops *dev);
|
||||
int (*cfhsi_get_peer_wake) (struct cfhsi_ops *dev, bool *status);
|
||||
int (*cfhsi_fifo_occupancy) (struct cfhsi_ops *dev, size_t *occupancy);
|
||||
int (*cfhsi_rx_cancel)(struct cfhsi_ops *dev);
|
||||
struct cfhsi_cb_ops *cb_ops;
|
||||
};
|
||||
|
||||
/* Structure holds status of received CAIF frames processing */
|
||||
|
|
@ -138,8 +138,8 @@ struct cfhsi {
|
|||
struct net_device *ndev;
|
||||
struct platform_device *pdev;
|
||||
struct sk_buff_head qhead[CFHSI_PRIO_LAST];
|
||||
struct cfhsi_drv drv;
|
||||
struct cfhsi_dev *dev;
|
||||
struct cfhsi_cb_ops cb_ops;
|
||||
struct cfhsi_ops *ops;
|
||||
int tx_state;
|
||||
struct cfhsi_rx_state rx_state;
|
||||
unsigned long inactivity_timeout;
|
||||
|
|
@ -190,6 +190,6 @@ enum ifla_caif_hsi {
|
|||
__IFLA_CAIF_HSI_MAX
|
||||
};
|
||||
|
||||
extern struct platform_device *cfhsi_get_device(void);
|
||||
extern struct cfhsi_ops *cfhsi_get_ops(void);
|
||||
|
||||
#endif /* CAIF_HSI_H_ */
|
||||
|
|
|
|||
Loading…
Reference in a new issue