rt2x00: rt2800pci: move initialization functions to the rt2800mmio module

Move the functions into a separate module, in order
to make those usable from other modules.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 169 insertions, 159 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
index c42bea56ec15..7e8c22445b7b 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -689,6 +689,169 @@ void rt2800mmio_queue_init(struct data_queue *queue)
 }
 EXPORT_SYMBOL_GPL(rt2800mmio_queue_init);
 
+/*
+ * Initialization functions.
+ */
+bool rt2800mmio_get_entry_state(struct queue_entry *entry)
+{
+        struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
+        u32 word;
+
+        if (entry->queue->qid == QID_RX) {
+                rt2x00_desc_read(entry_priv->desc, 1, &word);
+
+                return (!rt2x00_get_field32(word, RXD_W1_DMA_DONE));
+        } else {
+                rt2x00_desc_read(entry_priv->desc, 1, &word);
+
+                return (!rt2x00_get_field32(word, TXD_W1_DMA_DONE));
+        }
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_get_entry_state);
+
+void rt2800mmio_clear_entry(struct queue_entry *entry)
+{
+        struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
+        struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+        struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+        u32 word;
+
+        if (entry->queue->qid == QID_RX) {
+                rt2x00_desc_read(entry_priv->desc, 0, &word);
+                rt2x00_set_field32(&word, RXD_W0_SDP0, skbdesc->skb_dma);
+                rt2x00_desc_write(entry_priv->desc, 0, word);
+
+                rt2x00_desc_read(entry_priv->desc, 1, &word);
+                rt2x00_set_field32(&word, RXD_W1_DMA_DONE, 0);
+                rt2x00_desc_write(entry_priv->desc, 1, word);
+
+                /*
+                 * Set RX IDX in register to inform hardware that we have
+                 * handled this entry and it is available for reuse again.
+                 */
+                rt2x00mmio_register_write(rt2x00dev, RX_CRX_IDX,
+                                          entry->entry_idx);
+        } else {
+                rt2x00_desc_read(entry_priv->desc, 1, &word);
+                rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 1);
+                rt2x00_desc_write(entry_priv->desc, 1, word);
+        }
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_clear_entry);
+
+int rt2800mmio_init_queues(struct rt2x00_dev *rt2x00dev)
+{
+        struct queue_entry_priv_mmio *entry_priv;
+
+        /*
+         * Initialize registers.
+         */
+        entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
+        rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR0,
+                                  entry_priv->desc_dma);
+        rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT0,
+                                  rt2x00dev->tx[0].limit);
+        rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX0, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX0, 0);
+
+        entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
+        rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR1,
+                                  entry_priv->desc_dma);
+        rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT1,
+                                  rt2x00dev->tx[1].limit);
+        rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX1, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX1, 0);
+
+        entry_priv = rt2x00dev->tx[2].entries[0].priv_data;
+        rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR2,
+                                  entry_priv->desc_dma);
+        rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT2,
+                                  rt2x00dev->tx[2].limit);
+        rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX2, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX2, 0);
+
+        entry_priv = rt2x00dev->tx[3].entries[0].priv_data;
+        rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR3,
+                                  entry_priv->desc_dma);
+        rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT3,
+                                  rt2x00dev->tx[3].limit);
+        rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX3, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX3, 0);
+
+        rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR4, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT4, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX4, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX4, 0);
+
+        rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR5, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT5, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX5, 0);
+        rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX5, 0);
+
+        entry_priv = rt2x00dev->rx->entries[0].priv_data;
+        rt2x00mmio_register_write(rt2x00dev, RX_BASE_PTR,
+                                  entry_priv->desc_dma);
+        rt2x00mmio_register_write(rt2x00dev, RX_MAX_CNT,
+                                  rt2x00dev->rx[0].limit);
+        rt2x00mmio_register_write(rt2x00dev, RX_CRX_IDX,
+                                  rt2x00dev->rx[0].limit - 1);
+        rt2x00mmio_register_write(rt2x00dev, RX_DRX_IDX, 0);
+
+        rt2800_disable_wpdma(rt2x00dev);
+
+        rt2x00mmio_register_write(rt2x00dev, DELAY_INT_CFG, 0);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_init_queues);
+
+int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev)
+{
+        u32 reg;
+
+        /*
+         * Reset DMA indexes
+         */
+        rt2x00mmio_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
+        rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX0, 1);
+        rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX1, 1);
+        rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX2, 1);
+        rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX3, 1);
+        rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX4, 1);
+        rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX5, 1);
+        rt2x00_set_field32(&reg, WPDMA_RST_IDX_DRX_IDX0, 1);
+        rt2x00mmio_register_write(rt2x00dev, WPDMA_RST_IDX, reg);
+
+        rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f);
+        rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00);
+
+        if (rt2x00_is_pcie(rt2x00dev) &&
+            (rt2x00_rt(rt2x00dev, RT3090) ||
+             rt2x00_rt(rt2x00dev, RT3390) ||
+             rt2x00_rt(rt2x00dev, RT3572) ||
+             rt2x00_rt(rt2x00dev, RT3593) ||
+             rt2x00_rt(rt2x00dev, RT5390) ||
+             rt2x00_rt(rt2x00dev, RT5392) ||
+             rt2x00_rt(rt2x00dev, RT5592))) {
+                rt2x00mmio_register_read(rt2x00dev, AUX_CTRL, &reg);
+                rt2x00_set_field32(&reg, AUX_CTRL_FORCE_PCIE_CLK, 1);
+                rt2x00_set_field32(&reg, AUX_CTRL_WAKE_PCIE_EN, 1);
+                rt2x00mmio_register_write(rt2x00dev, AUX_CTRL, reg);
+        }
+
+        rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000003);
+
+        reg = 0;
+        rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_CSR, 1);
+        rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_BBP, 1);
+        rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+
+        rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_init_registers);
+
 MODULE_AUTHOR(DRV_PROJECT);
 MODULE_VERSION(DRV_VERSION);
 MODULE_DESCRIPTION("rt2800 MMIO library");
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.h b/drivers/net/wireless/rt2x00/rt2800mmio.h
index 676df2e62d45..392895a3208e 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.h
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.h
@@ -153,4 +153,10 @@ void rt2800mmio_kick_queue(struct data_queue *queue);
 void rt2800mmio_stop_queue(struct data_queue *queue);
 void rt2800mmio_queue_init(struct data_queue *queue);