60 #define to_ks8851_spi(ks) container_of((ks), struct ks8851_net_spi, ks8851)  argument
77  * @ks: The chip state
82 static void ks8851_lock_spi(struct ks8851_net *ks, unsigned long *flags)  in ks8851_lock_spi()  argument
84 	struct ks8851_net_spi *kss = to_ks8851_spi(ks);  in ks8851_lock_spi()
91  * @ks: The chip state
96 static void ks8851_unlock_spi(struct ks8851_net *ks, unsigned long *flags)  in ks8851_unlock_spi()  argument
98 	struct ks8851_net_spi *kss = to_ks8851_spi(ks);  in ks8851_unlock_spi()
112  * @ks: The chip state
118 static void ks8851_wrreg16_spi(struct ks8851_net *ks, unsigned int reg,  in ks8851_wrreg16_spi()  argument
121 	struct ks8851_net_spi *kss = to_ks8851_spi(ks);  in ks8851_wrreg16_spi()
136 		netdev_err(ks->netdev, "spi_sync() failed\n");  in ks8851_wrreg16_spi()
141  * @ks: The device state
149 static void ks8851_rdreg(struct ks8851_net *ks, unsigned int op,  in ks8851_rdreg()  argument
152 	struct ks8851_net_spi *kss = to_ks8851_spi(ks);  in ks8851_rdreg()
155 	__le16 *txb = (__le16 *)ks->txd;  in ks8851_rdreg()
156 	u8 *trx = ks->rxd;  in ks8851_rdreg()
184 		netdev_err(ks->netdev, "read: spi_sync() failed\n");  in ks8851_rdreg()
193  * @ks: The chip information
198 static unsigned int ks8851_rdreg16_spi(struct ks8851_net *ks, unsigned int reg)  in ks8851_rdreg16_spi()  argument
202 	ks8851_rdreg(ks, MK_OP(reg & 2 ? 0xC : 0x3, reg), (u8 *)&rx, 2);  in ks8851_rdreg16_spi()
208  * @ks: The device state.
215 static void ks8851_rdfifo_spi(struct ks8851_net *ks, u8 *buff, unsigned int len)  in ks8851_rdfifo_spi()  argument
217 	struct ks8851_net_spi *kss = to_ks8851_spi(ks);  in ks8851_rdfifo_spi()
223 	netif_dbg(ks, rx_status, ks->netdev,  in ks8851_rdfifo_spi()
240 		netdev_err(ks->netdev, "%s: spi_sync() failed\n", __func__);  in ks8851_rdfifo_spi()
245  * @ks: The device state.
254 static void ks8851_wrfifo_spi(struct ks8851_net *ks, struct sk_buff *txp,  in ks8851_wrfifo_spi()  argument
257 	struct ks8851_net_spi *kss = to_ks8851_spi(ks);  in ks8851_wrfifo_spi()
263 	netif_dbg(ks, tx_queued, ks->netdev, "%s: skb %p, %d@%p, irq %d\n",  in ks8851_wrfifo_spi()
266 	fid = ks->fid++;  in ks8851_wrfifo_spi()
273 	ks->txh.txb[1] = KS_SPIOP_TXFIFO;  in ks8851_wrfifo_spi()
274 	ks->txh.txw[1] = cpu_to_le16(fid);  in ks8851_wrfifo_spi()
275 	ks->txh.txw[2] = cpu_to_le16(txp->len);  in ks8851_wrfifo_spi()
277 	xfer->tx_buf = &ks->txh.txb[1];  in ks8851_wrfifo_spi()
288 		netdev_err(ks->netdev, "%s: spi_sync() failed\n", __func__);  in ks8851_wrfifo_spi()
305  * @ks: The device state
308 static void ks8851_rx_skb_spi(struct ks8851_net *ks, struct sk_buff *skb)  in ks8851_rx_skb_spi()  argument
325 	struct ks8851_net *ks;  in ks8851_tx_work()  local
331 	ks = &kss->ks8851;  in ks8851_tx_work()
332 	last = skb_queue_empty(&ks->txq);  in ks8851_tx_work()
334 	ks8851_lock_spi(ks, &flags);  in ks8851_tx_work()
337 		txb = skb_dequeue(&ks->txq);  in ks8851_tx_work()
338 		last = skb_queue_empty(&ks->txq);  in ks8851_tx_work()
343 			ks8851_wrreg16_spi(ks, KS_RXQCR,  in ks8851_tx_work()
344 					   ks->rc_rxqcr | RXQCR_SDA);  in ks8851_tx_work()
345 			ks8851_wrfifo_spi(ks, txb, last);  in ks8851_tx_work()
346 			ks8851_wrreg16_spi(ks, KS_RXQCR, ks->rc_rxqcr);  in ks8851_tx_work()
347 			ks8851_wrreg16_spi(ks, KS_TXQCR, TXQCR_METFE);  in ks8851_tx_work()
349 			ks8851_done_tx(ks, txb);  in ks8851_tx_work()
353 	tx_space = ks8851_rdreg16_spi(ks, KS_TXMIR);  in ks8851_tx_work()
355 	spin_lock(&ks->statelock);  in ks8851_tx_work()
356 	ks->queued_len -= dequeued_len;  in ks8851_tx_work()
357 	ks->tx_space = tx_space;  in ks8851_tx_work()
358 	spin_unlock(&ks->statelock);  in ks8851_tx_work()
360 	ks8851_unlock_spi(ks, &flags);  in ks8851_tx_work()
365  * @ks: The device state
367 static void ks8851_flush_tx_work_spi(struct ks8851_net *ks)  in ks8851_flush_tx_work_spi()  argument
369 	struct ks8851_net_spi *kss = to_ks8851_spi(ks);  in ks8851_flush_tx_work_spi()
391 	struct ks8851_net *ks = netdev_priv(dev);  in ks8851_start_xmit_spi()  local
395 	kss = to_ks8851_spi(ks);  in ks8851_start_xmit_spi()
397 	netif_dbg(ks, tx_queued, ks->netdev,  in ks8851_start_xmit_spi()
400 	spin_lock(&ks->statelock);  in ks8851_start_xmit_spi()
402 	if (ks->queued_len + needed > ks->tx_space) {  in ks8851_start_xmit_spi()
406 		ks->queued_len += needed;  in ks8851_start_xmit_spi()
407 		skb_queue_tail(&ks->txq, skb);  in ks8851_start_xmit_spi()
410 	spin_unlock(&ks->statelock);  in ks8851_start_xmit_spi()
422 	struct ks8851_net *ks;  in ks8851_probe_spi()  local
430 	ks = netdev_priv(netdev);  in ks8851_probe_spi()
432 	ks->lock = ks8851_lock_spi;  in ks8851_probe_spi()
433 	ks->unlock = ks8851_unlock_spi;  in ks8851_probe_spi()
434 	ks->rdreg16 = ks8851_rdreg16_spi;  in ks8851_probe_spi()
435 	ks->wrreg16 = ks8851_wrreg16_spi;  in ks8851_probe_spi()
436 	ks->rdfifo = ks8851_rdfifo_spi;  in ks8851_probe_spi()
437 	ks->wrfifo = ks8851_wrfifo_spi;  in ks8851_probe_spi()
438 	ks->start_xmit = ks8851_start_xmit_spi;  in ks8851_probe_spi()
439 	ks->rx_skb = ks8851_rx_skb_spi;  in ks8851_probe_spi()
440 	ks->flush_tx_work = ks8851_flush_tx_work_spi;  in ks8851_probe_spi()
448 	ks->rc_ier = STD_IRQ;  in ks8851_probe_spi()
450 	kss = to_ks8851_spi(ks);  in ks8851_probe_spi()