1 files changed, 287 insertions, 16 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/sdio.c b/drivers/net/wireless/mediatek/mt76/sdio.c
index 783a15635ec5..c99acc21225e 100644
--- a/drivers/net/wireless/mediatek/mt76/sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/sdio.c
@@ -16,9 +16,290 @@
 #include <linux/kthread.h>
 
 #include "mt76.h"
+#include "sdio.h"
 
-static int
-mt76s_alloc_rx_queue(struct mt76_dev *dev, enum mt76_rxq_id qid)
+static u32 mt76s_read_whisr(struct mt76_dev *dev)
+{
+	return sdio_readl(dev->sdio.func, MCR_WHISR, NULL);
+}
+
+u32 mt76s_read_pcr(struct mt76_dev *dev)
+{
+	struct mt76_sdio *sdio = &dev->sdio;
+
+	return sdio_readl(sdio->func, MCR_WHLPCR, NULL);
+}
+EXPORT_SYMBOL_GPL(mt76s_read_pcr);
+
+static u32 mt76s_read_mailbox(struct mt76_dev *dev, u32 offset)
+{
+	struct sdio_func *func = dev->sdio.func;
+	u32 val = ~0, status;
+	int err;
+
+	sdio_claim_host(func);
+
+	sdio_writel(func, offset, MCR_H2DSM0R, &err);
+	if (err < 0) {
+		dev_err(dev->dev, "failed setting address [err=%d]\n", err);
+		goto out;
+	}
+
+	sdio_writel(func, H2D_SW_INT_READ, MCR_WSICR, &err);
+	if (err < 0) {
+		dev_err(dev->dev, "failed setting read mode [err=%d]\n", err);
+		goto out;
+	}
+
+	err = readx_poll_timeout(mt76s_read_whisr, dev, status,
+				 status & H2D_SW_INT_READ, 0, 1000000);
+	if (err < 0) {
+		dev_err(dev->dev, "query whisr timeout\n");
+		goto out;
+	}
+
+	sdio_writel(func, H2D_SW_INT_READ, MCR_WHISR, &err);
+	if (err < 0) {
+		dev_err(dev->dev, "failed setting read mode [err=%d]\n", err);
+		goto out;
+	}
+
+	val = sdio_readl(func, MCR_H2DSM0R, &err);
+	if (err < 0) {
+		dev_err(dev->dev, "failed reading h2dsm0r [err=%d]\n", err);
+		goto out;
+	}
+
+	if (val != offset) {
+		dev_err(dev->dev, "register mismatch\n");
+		val = ~0;
+		goto out;
+	}
+
+	val = sdio_readl(func, MCR_D2HRM1R, &err);
+	if (err < 0)
+		dev_err(dev->dev, "failed reading d2hrm1r [err=%d]\n", err);
+
+out:
+	sdio_release_host(func);
+
+	return val;
+}
+
+static void mt76s_write_mailbox(struct mt76_dev *dev, u32 offset, u32 val)
+{
+	struct sdio_func *func = dev->sdio.func;
+	u32 status;
+	int err;
+
+	sdio_claim_host(func);
+
+	sdio_writel(func, offset, MCR_H2DSM0R, &err);
+	if (err < 0) {
+		dev_err(dev->dev, "failed setting address [err=%d]\n", err);
+		goto out;
+	}
+
+	sdio_writel(func, val, MCR_H2DSM1R, &err);
+	if (err < 0) {
+		dev_err(dev->dev,
+			"failed setting write value [err=%d]\n", err);
+		goto out;
+	}
+
+	sdio_writel(func, H2D_SW_INT_WRITE, MCR_WSICR, &err);
+	if (err < 0) {
+		dev_err(dev->dev, "failed setting write mode [err=%d]\n", err);
+		goto out;
+	}
+
+	err = readx_poll_timeout(mt76s_read_whisr, dev, status,
+				 status & H2D_SW_INT_WRITE, 0, 1000000);
+	if (err < 0) {
+		dev_err(dev->dev, "query whisr timeout\n");
+		goto out;
+	}
+
+	sdio_writel(func, H2D_SW_INT_WRITE, MCR_WHISR, &err);
+	if (err < 0) {
+		dev_err(dev->dev, "failed setting write mode [err=%d]\n", err);
+		goto out;
+	}
+
+	val = sdio_readl(func, MCR_H2DSM0R, &err);
+	if (err < 0) {
+		dev_err(dev->dev, "failed reading h2dsm0r [err=%d]\n", err);
+		goto out;
+	}
+
+	if (val != offset)
+		dev_err(dev->dev, "register mismatch\n");
+
+out:
+	sdio_release_host(func);
+}
+
+u32 mt76s_rr(struct mt76_dev *dev, u32 offset)
+{
+	if (test_bit(MT76_STATE_MCU_RUNNING, &dev->phy.state))
+		return dev->mcu_ops->mcu_rr(dev, offset);
+	else
+		return mt76s_read_mailbox(dev, offset);
+}
+EXPORT_SYMBOL_GPL(mt76s_rr);
+
+void mt76s_wr(struct mt76_dev *dev, u32 offset, u32 val)
+{
+	if (test_bit(MT76_STATE_MCU_RUNNING, &dev->phy.state))
+		dev->mcu_ops->mcu_wr(dev, offset, val);
+	else
+		mt76s_write_mailbox(dev, offset, val);
+}
+EXPORT_SYMBOL_GPL(mt76s_wr);
+
+u32 mt76s_rmw(struct mt76_dev *dev, u32 offset, u32 mask, u32 val)
+{
+	val |= mt76s_rr(dev, offset) & ~mask;
+	mt76s_wr(dev, offset, val);
+
+	return val;
+}
+EXPORT_SYMBOL_GPL(mt76s_rmw);
+
+void mt76s_write_copy(struct mt76_dev *dev, u32 offset,
+		      const void *data, int len)
+{
+	const u32 *val = data;
+	int i;
+
+	for (i = 0; i < len / sizeof(u32); i++) {
+		mt76s_wr(dev, offset, val[i]);
+		offset += sizeof(u32);
+	}
+}
+EXPORT_SYMBOL_GPL(mt76s_write_copy);
+
+void mt76s_read_copy(struct mt76_dev *dev, u32 offset,
+		     void *data, int len)
+{
+	u32 *val = data;
+	int i;
+
+	for (i = 0; i < len / sizeof(u32); i++) {
+		val[i] = mt76s_rr(dev, offset);
+		offset += sizeof(u32);
+	}
+}
+EXPORT_SYMBOL_GPL(mt76s_read_copy);
+
+int mt76s_wr_rp(struct mt76_dev *dev, u32 base,
+		const struct mt76_reg_pair *data,
+		int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++) {
+		mt76s_wr(dev, data->reg, data->value);
+		data++;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mt76s_wr_rp);
+
+int mt76s_rd_rp(struct mt76_dev *dev, u32 base,
+		struct mt76_reg_pair *data, int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++) {
+		data->value = mt76s_rr(dev, data->reg);
+		data++;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mt76s_rd_rp);
+
+int mt76s_hw_init(struct mt76_dev *dev, struct sdio_func *func, int hw_ver)
+{
+	u32 status, ctrl;
+	int ret;
+
+	dev->sdio.hw_ver = hw_ver;
+
+	sdio_claim_host(func);
+
+	ret = sdio_enable_func(func);
+	if (ret < 0)
+		goto release;
+
+	/* Get ownership from the device */
+	sdio_writel(func, WHLPCR_INT_EN_CLR | WHLPCR_FW_OWN_REQ_CLR,
+		    MCR_WHLPCR, &ret);
+	if (ret < 0)
+		goto disable_func;
+
+	ret = readx_poll_timeout(mt76s_read_pcr, dev, status,
+				 status & WHLPCR_IS_DRIVER_OWN, 2000, 1000000);
+	if (ret < 0) {
+		dev_err(dev->dev, "Cannot get ownership from device");
+		goto disable_func;
+	}
+
+	ret = sdio_set_block_size(func, 512);
+	if (ret < 0)
+		goto disable_func;
+
+	/* Enable interrupt */
+	sdio_writel(func, WHLPCR_INT_EN_SET, MCR_WHLPCR, &ret);
+	if (ret < 0)
+		goto disable_func;
+
+	ctrl = WHIER_RX0_DONE_INT_EN | WHIER_TX_DONE_INT_EN;
+	if (hw_ver == MT76_CONNAC2_SDIO)
+		ctrl |= WHIER_RX1_DONE_INT_EN;
+	sdio_writel(func, ctrl, MCR_WHIER, &ret);
+	if (ret < 0)
+		goto disable_func;
+
+	switch (hw_ver) {
+	case MT76_CONNAC_SDIO:
+		/* set WHISR as read clear and Rx aggregation number as 16 */
+		ctrl = FIELD_PREP(MAX_HIF_RX_LEN_NUM, 16);
+		break;
+	default:
+		ctrl = sdio_readl(func, MCR_WHCR, &ret);
+		if (ret < 0)
+			goto disable_func;
+		ctrl &= ~MAX_HIF_RX_LEN_NUM_CONNAC2;
+		ctrl &= ~W_INT_CLR_CTRL; /* read clear */
+		ctrl |= FIELD_PREP(MAX_HIF_RX_LEN_NUM_CONNAC2, 0);
+		break;
+	}
+
+	sdio_writel(func, ctrl, MCR_WHCR, &ret);
+	if (ret < 0)
+		goto disable_func;
+
+	ret = sdio_claim_irq(func, mt76s_sdio_irq);
+	if (ret < 0)
+		goto disable_func;
+
+	sdio_release_host(func);
+
+	return 0;
+
+disable_func:
+	sdio_disable_func(func);
+release:
+	sdio_release_host(func);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mt76s_hw_init);
+
+int mt76s_alloc_rx_queue(struct mt76_dev *dev, enum mt76_rxq_id qid)
 {
 	struct mt76_queue *q = &dev->q_rx[qid];
 
@@ -35,6 +316,7 @@ mt76s_alloc_rx_queue(struct mt76_dev *dev, enum mt76_rxq_id qid)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(mt76s_alloc_rx_queue);
 
 static struct mt76_queue *mt76s_alloc_tx_queue(struct mt76_dev *dev)
 {
@@ -56,7 +338,7 @@ static struct mt76_queue *mt76s_alloc_tx_queue(struct mt76_dev *dev)
 	return q;
 }
 
-static int mt76s_alloc_tx(struct mt76_dev *dev)
+int mt76s_alloc_tx(struct mt76_dev *dev)
 {
 	struct mt76_queue *q;
 	int i;
@@ -79,18 +361,7 @@ static int mt76s_alloc_tx(struct mt76_dev *dev)
 
 	return 0;
 }
-
-int mt76s_alloc_queues(struct mt76_dev *dev)
-{
-	int err;
-
-	err = mt76s_alloc_rx_queue(dev, MT_RXQ_MAIN);
-	if (err < 0)
-		return err;
-
-	return mt76s_alloc_tx(dev);
-}
-EXPORT_SYMBOL_GPL(mt76s_alloc_queues);
+EXPORT_SYMBOL_GPL(mt76s_alloc_tx);
 
 static struct mt76_queue_entry *
 mt76s_get_next_rx_entry(struct mt76_queue *q)
@@ -328,7 +599,7 @@ void mt76s_deinit(struct mt76_dev *dev)
 	cancel_work_sync(&sdio->stat_work);
 	clear_bit(MT76_READING_STATS, &dev->phy.state);
 
-	mt76_tx_status_check(dev, NULL, true);
+	mt76_tx_status_check(dev, true);
 
 	sdio_claim_host(sdio->func);
 	sdio_release_irq(sdio->func);