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mt76: add usb implementation of {wr,rd}_rp

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Add USB implementation for read and write reg pair routines.
The actual implementation can use mcu related routines according to
MCU state

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Stanislaw Gruszka
2018-09-09 22:32:38 +02:00
committed by Felix Fietkau
parent db0f04f324
commit f1638c7cd6
7 changed files with 149 additions and 83 deletions
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54
drivers/net/wireless/mediatek/mt76/usb.c
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@@ -186,6 +186,60 @@ void mt76u_single_wr(struct mt76_dev *dev, const u8 req,
}
EXPORT_SYMBOL_GPL(mt76u_single_wr);
static int
mt76u_req_wr_rp(struct mt76_dev *dev, u32 base,
const struct mt76_reg_pair *data, int len)
{
struct mt76_usb *usb = &dev->usb;
mutex_lock(&usb->usb_ctrl_mtx);
while (len > 0) {
__mt76u_wr(dev, base + data->reg, data->value);
len--;
data++;
}
mutex_unlock(&usb->usb_ctrl_mtx);
return 0;
}
int mt76u_wr_rp(struct mt76_dev *dev, u32 base,
const struct mt76_reg_pair *data, int n)
{
if (test_bit(MT76_STATE_MCU_RUNNING, &dev->state))
return mt76u_mcu_wr_rp(dev, base, data, n);
else
return mt76u_req_wr_rp(dev, base, data, n);
}
EXPORT_SYMBOL_GPL(mt76u_wr_rp);
static int
mt76u_req_rd_rp(struct mt76_dev *dev, u32 base, struct mt76_reg_pair *data,
int len)
{
struct mt76_usb *usb = &dev->usb;
mutex_lock(&usb->usb_ctrl_mtx);
while (len > 0) {
data->value = __mt76u_rr(dev, base + data->reg);
len--;
data++;
}
mutex_unlock(&usb->usb_ctrl_mtx);
return 0;
}
int mt76u_rd_rp(struct mt76_dev *dev, u32 base,
struct mt76_reg_pair *data, int n)
{
if (test_bit(MT76_STATE_MCU_RUNNING, &dev->state))
return mt76u_mcu_rd_rp(dev, base, data, n);
else
return mt76u_req_rd_rp(dev, base, data, n);
}
EXPORT_SYMBOL_GPL(mt76u_rd_rp);
static int
mt76u_set_endpoints(struct usb_interface *intf,
struct mt76_usb *usb)