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path: root/drivers/net/wireless/rt2x00/rt2800pci.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800pci.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800pci.c951
1 files changed, 21 insertions, 930 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index f8f2abbfbb65..b504455b4fec 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -37,14 +37,13 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/platform_device.h>
#include <linux/eeprom_93cx6.h>
#include "rt2x00.h"
#include "rt2x00mmio.h"
#include "rt2x00pci.h"
-#include "rt2x00soc.h"
#include "rt2800lib.h"
+#include "rt2800mmio.h"
#include "rt2800.h"
#include "rt2800pci.h"
@@ -90,27 +89,6 @@ static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token)
rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
}
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
-static int rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev)
-{
- void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
-
- if (!base_addr)
- return -ENOMEM;
-
- memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
-
- iounmap(base_addr);
- return 0;
-}
-#else
-static inline int rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev)
-{
- return -ENOMEM;
-}
-#endif /* CONFIG_SOC_RT288X || CONFIG_SOC_RT305X */
-
-#ifdef CONFIG_PCI
static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
{
struct rt2x00_dev *rt2x00dev = eeprom->data;
@@ -183,112 +161,6 @@ static inline int rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
{
return rt2800_read_eeprom_efuse(rt2x00dev);
}
-#else
-static inline int rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev)
-{
- return -EOPNOTSUPP;
-}
-
-static inline int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev)
-{
- return 0;
-}
-
-static inline int rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
-{
- return -EOPNOTSUPP;
-}
-#endif /* CONFIG_PCI */
-
-/*
- * Queue handlers.
- */
-static void rt2800pci_start_queue(struct data_queue *queue)
-{
- struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
- u32 reg;
-
- switch (queue->qid) {
- case QID_RX:
- rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
- rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 1);
- rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
- break;
- case QID_BEACON:
- rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 1);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 1);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 1);
- rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
-
- rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, &reg);
- rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER, 1);
- rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg);
- break;
- default:
- break;
- }
-}
-
-static void rt2800pci_kick_queue(struct data_queue *queue)
-{
- struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
- struct queue_entry *entry;
-
- switch (queue->qid) {
- case QID_AC_VO:
- case QID_AC_VI:
- case QID_AC_BE:
- case QID_AC_BK:
- entry = rt2x00queue_get_entry(queue, Q_INDEX);
- rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX(queue->qid),
- entry->entry_idx);
- break;
- case QID_MGMT:
- entry = rt2x00queue_get_entry(queue, Q_INDEX);
- rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX(5),
- entry->entry_idx);
- break;
- default:
- break;
- }
-}
-
-static void rt2800pci_stop_queue(struct data_queue *queue)
-{
- struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
- u32 reg;
-
- switch (queue->qid) {
- case QID_RX:
- rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
- rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 0);
- rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
- break;
- case QID_BEACON:
- rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 0);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 0);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 0);
- rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
-
- rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, &reg);
- rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER, 0);
- rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg);
-
- /*
- * Wait for current invocation to finish. The tasklet
- * won't be scheduled anymore afterwards since we disabled
- * the TBTT and PRE TBTT timer.
- */
- tasklet_kill(&rt2x00dev->tbtt_tasklet);
- tasklet_kill(&rt2x00dev->pretbtt_tasklet);
-
- break;
- default:
- break;
- }
-}
/*
* Firmware functions
@@ -332,217 +204,13 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
}
/*
- * Initialization functions.
- */
-static bool rt2800pci_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));
- }
-}
-
-static void rt2800pci_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);
- }
-}
-
-static int rt2800pci_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;
-}
-
-/*
* Device state switch handlers.
*/
-static void rt2800pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
- enum dev_state state)
-{
- u32 reg;
- unsigned long flags;
-
- /*
- * When interrupts are being enabled, the interrupt registers
- * should clear the register to assure a clean state.
- */
- if (state == STATE_RADIO_IRQ_ON) {
- rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
- rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
- }
-
- spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags);
- reg = 0;
- if (state == STATE_RADIO_IRQ_ON) {
- rt2x00_set_field32(&reg, INT_MASK_CSR_RX_DONE, 1);
- rt2x00_set_field32(&reg, INT_MASK_CSR_TBTT, 1);
- rt2x00_set_field32(&reg, INT_MASK_CSR_PRE_TBTT, 1);
- rt2x00_set_field32(&reg, INT_MASK_CSR_TX_FIFO_STATUS, 1);
- rt2x00_set_field32(&reg, INT_MASK_CSR_AUTO_WAKEUP, 1);
- }
- rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
- spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags);
-
- if (state == STATE_RADIO_IRQ_OFF) {
- /*
- * Wait for possibly running tasklets to finish.
- */
- tasklet_kill(&rt2x00dev->txstatus_tasklet);
- tasklet_kill(&rt2x00dev->rxdone_tasklet);
- tasklet_kill(&rt2x00dev->autowake_tasklet);
- tasklet_kill(&rt2x00dev->tbtt_tasklet);
- tasklet_kill(&rt2x00dev->pretbtt_tasklet);
- }
-}
-
-static int rt2800pci_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;
-}
-
static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
{
int retval;
- /* Wait for DMA, ignore error until we initialize queues. */
- rt2800_wait_wpdma_ready(rt2x00dev);
-
- if (unlikely(rt2800pci_init_queues(rt2x00dev)))
- return -EIO;
-
- retval = rt2800_enable_radio(rt2x00dev);
+ retval = rt2800mmio_enable_radio(rt2x00dev);
if (retval)
return retval;
@@ -559,15 +227,6 @@ static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
return retval;
}
-static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev)
-{
- if (rt2x00_is_soc(rt2x00dev)) {
- rt2800_disable_radio(rt2x00dev);
- rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);
- rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0);
- }
-}
-
static int rt2800pci_set_state(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
@@ -601,12 +260,11 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
* After the radio has been disabled, the device should
* be put to sleep for powersaving.
*/
- rt2800pci_disable_radio(rt2x00dev);
rt2800pci_set_state(rt2x00dev, STATE_SLEEP);
break;
case STATE_RADIO_IRQ_ON:
case STATE_RADIO_IRQ_OFF:
- rt2800pci_toggle_irq(rt2x00dev, state);
+ rt2800mmio_toggle_irq(rt2x00dev, state);
break;
case STATE_DEEP_SLEEP:
case STATE_SLEEP:
@@ -627,479 +285,13 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
}
/*
- * TX descriptor initialization
- */
-static __le32 *rt2800pci_get_txwi(struct queue_entry *entry)
-{
- return (__le32 *) entry->skb->data;
-}
-
-static void rt2800pci_write_tx_desc(struct queue_entry *entry,
- struct txentry_desc *txdesc)
-{
- struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
- struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
- __le32 *txd = entry_priv->desc;
- u32 word;
- const unsigned int txwi_size = entry->queue->winfo_size;
-
- /*
- * The buffers pointed by SD_PTR0/SD_LEN0 and SD_PTR1/SD_LEN1
- * must contains a TXWI structure + 802.11 header + padding + 802.11
- * data. We choose to have SD_PTR0/SD_LEN0 only contains TXWI and
- * SD_PTR1/SD_LEN1 contains 802.11 header + padding + 802.11
- * data. It means that LAST_SEC0 is always 0.
- */
-
- /*
- * Initialize TX descriptor
- */
- word = 0;
- rt2x00_set_field32(&word, TXD_W0_SD_PTR0, skbdesc->skb_dma);
- rt2x00_desc_write(txd, 0, word);
-
- word = 0;
- rt2x00_set_field32(&word, TXD_W1_SD_LEN1, entry->skb->len);
- rt2x00_set_field32(&word, TXD_W1_LAST_SEC1,
- !test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
- rt2x00_set_field32(&word, TXD_W1_BURST,
- test_bit(ENTRY_TXD_BURST, &txdesc->flags));
- rt2x00_set_field32(&word, TXD_W1_SD_LEN0, txwi_size);
- rt2x00_set_field32(&word, TXD_W1_LAST_SEC0, 0);
- rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 0);
- rt2x00_desc_write(txd, 1, word);
-
- word = 0;
- rt2x00_set_field32(&word, TXD_W2_SD_PTR1,
- skbdesc->skb_dma + txwi_size);
- rt2x00_desc_write(txd, 2, word);
-
- word = 0;
- rt2x00_set_field32(&word, TXD_W3_WIV,
- !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags));
- rt2x00_set_field32(&word, TXD_W3_QSEL, 2);
- rt2x00_desc_write(txd, 3, word);
-
- /*
- * Register descriptor details in skb frame descriptor.
- */
- skbdesc->desc = txd;
- skbdesc->desc_len = TXD_DESC_SIZE;
-}
-
-/*
- * RX control handlers
- */
-static void rt2800pci_fill_rxdone(struct queue_entry *entry,
- struct rxdone_entry_desc *rxdesc)
-{
- struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
- __le32 *rxd = entry_priv->desc;
- u32 word;
-
- rt2x00_desc_read(rxd, 3, &word);
-
- if (rt2x00_get_field32(word, RXD_W3_CRC_ERROR))
- rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
-
- /*
- * Unfortunately we don't know the cipher type used during
- * decryption. This prevents us from correct providing
- * correct statistics through debugfs.
- */
- rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W3_CIPHER_ERROR);
-
- if (rt2x00_get_field32(word, RXD_W3_DECRYPTED)) {
- /*
- * Hardware has stripped IV/EIV data from 802.11 frame during
- * decryption. Unfortunately the descriptor doesn't contain
- * any fields with the EIV/IV data either, so they can't
- * be restored by rt2x00lib.
- */
- rxdesc->flags |= RX_FLAG_IV_STRIPPED;
-
- /*
- * The hardware has already checked the Michael Mic and has
- * stripped it from the frame. Signal this to mac80211.
- */
- rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
-
- if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
- rxdesc->flags |= RX_FLAG_DECRYPTED;
- else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
- rxdesc->flags |= RX_FLAG_MMIC_ERROR;
- }
-
- if (rt2x00_get_field32(word, RXD_W3_MY_BSS))
- rxdesc->dev_flags |= RXDONE_MY_BSS;
-
- if (rt2x00_get_field32(word, RXD_W3_L2PAD))
- rxdesc->dev_flags |= RXDONE_L2PAD;
-
- /*
- * Process the RXWI structure that is at the start of the buffer.
- */
- rt2800_process_rxwi(entry, rxdesc);
-}
-
-/*
- * Interrupt functions.
- */
-static void rt2800pci_wakeup(struct rt2x00_dev *rt2x00dev)
-{
- struct ieee80211_conf conf = { .flags = 0 };
- struct rt2x00lib_conf libconf = { .conf = &conf };
-
- rt2800_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
-}
-
-static bool rt2800pci_txdone_entry_check(struct queue_entry *entry, u32 status)
-{
- __le32 *txwi;
- u32 word;
- int wcid, tx_wcid;
-
- wcid = rt2x00_get_field32(status, TX_STA_FIFO_WCID);
-
- txwi = rt2800_drv_get_txwi(entry);
- rt2x00_desc_read(txwi, 1, &word);
- tx_wcid = rt2x00_get_field32(word, TXWI_W1_WIRELESS_CLI_ID);
-
- return (tx_wcid == wcid);
-}
-
-static bool rt2800pci_txdone_find_entry(struct queue_entry *entry, void *data)
-{
- u32 status = *(u32 *)data;
-
- /*
- * rt2800pci hardware might reorder frames when exchanging traffic
- * with multiple BA enabled STAs.
- *
- * For example, a tx queue
- * [ STA1 | STA2 | STA1 | STA2 ]
- * can result in tx status reports
- * [ STA1 | STA1 | STA2 | STA2 ]
- * when the hw decides to aggregate the frames for STA1 into one AMPDU.
- *
- * To mitigate this effect, associate the tx status to the first frame
- * in the tx queue with a matching wcid.
- */
- if (rt2800pci_txdone_entry_check(entry, status) &&
- !test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
- /*
- * Got a matching frame, associate the tx status with
- * the frame
- */
- entry->status = status;
- set_bit(ENTRY_DATA_STATUS_SET, &entry->flags);
- return true;
- }
-
- /* Check the next frame */
- return false;
-}
-
-static bool rt2800pci_txdone_match_first(struct queue_entry *entry, void *data)
-{
- u32 status = *(u32 *)data;
-
- /*
- * Find the first frame without tx status and assign this status to it
- * regardless if it matches or not.
- */
- if (!test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
- /*
- * Got a matching frame, associate the tx status with
- * the frame
- */
- entry->status = status;
- set_bit(ENTRY_DATA_STATUS_SET, &entry->flags);
- return true;
- }
-
- /* Check the next frame */
- return false;
-}
-static bool rt2800pci_txdone_release_entries(struct queue_entry *entry,
- void *data)
-{
- if (test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
- rt2800_txdone_entry(entry, entry->status,
- rt2800pci_get_txwi(entry));
- return false;
- }
-
- /* No more frames to release */
- return true;
-}
-
-static bool rt2800pci_txdone(struct rt2x00_dev *rt2x00dev)
-{
- struct data_queue *queue;
- u32 status;
- u8 qid;
- int max_tx_done = 16;
-
- while (kfifo_get(&rt2x00dev->txstatus_fifo, &status)) {
- qid = rt2x00_get_field32(status, TX_STA_FIFO_PID_QUEUE);
- if (unlikely(qid >= QID_RX)) {
- /*
- * Unknown queue, this shouldn't happen. Just drop
- * this tx status.
- */
- rt2x00_warn(rt2x00dev, "Got TX status report with unexpected pid %u, dropping\n",
- qid);
- break;
- }
-
- queue = rt2x00queue_get_tx_queue(rt2x00dev, qid);
- if (unlikely(queue == NULL)) {
- /*
- * The queue is NULL, this shouldn't happen. Stop
- * processing here and drop the tx status
- */
- rt2x00_warn(rt2x00dev, "Got TX status for an unavailable queue %u, dropping\n",
- qid);
- break;
- }
-
- if (unlikely(rt2x00queue_empty(queue))) {
- /*
- * The queue is empty. Stop processing here
- * and drop the tx status.
- */
- rt2x00_warn(rt2x00dev, "Got TX status for an empty queue %u, dropping\n",
- qid);
- break;
- }
-
- /*
- * Let's associate this tx status with the first
- * matching frame.
- */
- if (!rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
- Q_INDEX, &status,
- rt2800pci_txdone_find_entry)) {
- /*
- * We cannot match the tx status to any frame, so just
- * use the first one.
- */
- if (!rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
- Q_INDEX, &status,
- rt2800pci_txdone_match_first)) {
- rt2x00_warn(rt2x00dev, "No frame found for TX status on queue %u, dropping\n",
- qid);
- break;
- }
- }
-
- /*
- * Release all frames with a valid tx status.
- */
- rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
- Q_INDEX, NULL,
- rt2800pci_txdone_release_entries);
-
- if (--max_tx_done == 0)
- break;
- }
-
- return !max_tx_done;
-}
-
-static inline void rt2800pci_enable_interrupt(struct rt2x00_dev *rt2x00dev,
- struct rt2x00_field32 irq_field)
-{
- u32 reg;
-
- /*
- * Enable a single interrupt. The interrupt mask register
- * access needs locking.
- */
- spin_lock_irq(&rt2x00dev->irqmask_lock);
- rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR, &reg);
- rt2x00_set_field32(&reg, irq_field, 1);
- rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
- spin_unlock_irq(&rt2x00dev->irqmask_lock);
-}
-
-static void rt2800pci_txstatus_tasklet(unsigned long data)
-{
- struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- if (rt2800pci_txdone(rt2x00dev))
- tasklet_schedule(&rt2x00dev->txstatus_tasklet);
-
- /*
- * No need to enable the tx status interrupt here as we always
- * leave it enabled to minimize the possibility of a tx status
- * register overflow. See comment in interrupt handler.
- */
-}
-
-static void rt2800pci_pretbtt_tasklet(unsigned long data)
-{
- struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- rt2x00lib_pretbtt(rt2x00dev);
- if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_PRE_TBTT);
-}
-
-static void rt2800pci_tbtt_tasklet(unsigned long data)
-{
- struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- struct rt2800_drv_data *drv_data = rt2x00dev->drv_data;
- u32 reg;
-
- rt2x00lib_beacondone(rt2x00dev);
-
- if (rt2x00dev->intf_ap_count) {
- /*
- * The rt2800pci hardware tbtt timer is off by 1us per tbtt
- * causing beacon skew and as a result causing problems with
- * some powersaving clients over time. Shorten the beacon
- * interval every 64 beacons by 64us to mitigate this effect.
- */
- if (drv_data->tbtt_tick == (BCN_TBTT_OFFSET - 2)) {
- rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL,
- (rt2x00dev->beacon_int * 16) - 1);
- rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
- } else if (drv_data->tbtt_tick == (BCN_TBTT_OFFSET - 1)) {
- rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL,
- (rt2x00dev->beacon_int * 16));
- rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
- }
- drv_data->tbtt_tick++;
- drv_data->tbtt_tick %= BCN_TBTT_OFFSET;
- }
-
- if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_TBTT);
-}
-
-static void rt2800pci_rxdone_tasklet(unsigned long data)
-{
- struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- if (rt2x00mmio_rxdone(rt2x00dev))
- tasklet_schedule(&rt2x00dev->rxdone_tasklet);
- else if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_RX_DONE);
-}
-
-static void rt2800pci_autowake_tasklet(unsigned long data)
-{
- struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- rt2800pci_wakeup(rt2x00dev);
- if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_AUTO_WAKEUP);
-}
-
-static void rt2800pci_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
-{
- u32 status;
- int i;
-
- /*
- * The TX_FIFO_STATUS interrupt needs special care. We should
- * read TX_STA_FIFO but we should do it immediately as otherwise
- * the register can overflow and we would lose status reports.
- *
- * Hence, read the TX_STA_FIFO register and copy all tx status
- * reports into a kernel FIFO which is handled in the txstatus
- * tasklet. We use a tasklet to process the tx status reports
- * because we can schedule the tasklet multiple times (when the
- * interrupt fires again during tx status processing).
- *
- * Furthermore we don't disable the TX_FIFO_STATUS
- * interrupt here but leave it enabled so that the TX_STA_FIFO
- * can also be read while the tx status tasklet gets executed.
- *
- * Since we have only one producer and one consumer we don't
- * need to lock the kfifo.
- */
- for (i = 0; i < rt2x00dev->tx->limit; i++) {
- rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO, &status);
-
- if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID))
- break;
-
- if (!kfifo_put(&rt2x00dev->txstatus_fifo, &status)) {
- rt2x00_warn(rt2x00dev, "TX status FIFO overrun, drop tx status report\n");
- break;
- }
- }
-
- /* Schedule the tasklet for processing the tx status. */
- tasklet_schedule(&rt2x00dev->txstatus_tasklet);
-}
-
-static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance)
-{
- struct rt2x00_dev *rt2x00dev = dev_instance;
- u32 reg, mask;
-
- /* Read status and ACK all interrupts */
- rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
- rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
-
- if (!reg)
- return IRQ_NONE;
-
- if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- return IRQ_HANDLED;
-
- /*
- * Since INT_MASK_CSR and INT_SOURCE_CSR use the same bits
- * for interrupts and interrupt masks we can just use the value of
- * INT_SOURCE_CSR to create the interrupt mask.
- */
- mask = ~reg;
-
- if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) {
- rt2800pci_txstatus_interrupt(rt2x00dev);
- /*
- * Never disable the TX_FIFO_STATUS interrupt.
- */
- rt2x00_set_field32(&mask, INT_MASK_CSR_TX_FIFO_STATUS, 1);
- }
-
- if (rt2x00_get_field32(reg, INT_SOURCE_CSR_PRE_TBTT))
- tasklet_hi_schedule(&rt2x00dev->pretbtt_tasklet);
-
- if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TBTT))
- tasklet_hi_schedule(&rt2x00dev->tbtt_tasklet);
-
- if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RX_DONE))
- tasklet_schedule(&rt2x00dev->rxdone_tasklet);
-
- if (rt2x00_get_field32(reg, INT_SOURCE_CSR_AUTO_WAKEUP))
- tasklet_schedule(&rt2x00dev->autowake_tasklet);
-
- /*
- * Disable all interrupts for which a tasklet was scheduled right now,
- * the tasklet will reenable the appropriate interrupts.
- */
- spin_lock(&rt2x00dev->irqmask_lock);
- rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR, &reg);
- reg &= mask;
- rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
- spin_unlock(&rt2x00dev->irqmask_lock);
-
- return IRQ_HANDLED;
-}
-
-/*
* Device probe functions.
*/
static int rt2800pci_read_eeprom(struct rt2x00_dev *rt2x00dev)
{
int retval;
- if (rt2x00_is_soc(rt2x00dev))
- retval = rt2800pci_read_eeprom_soc(rt2x00dev);
- else if (rt2800pci_efuse_detect(rt2x00dev))
+ if (rt2800pci_efuse_detect(rt2x00dev))
retval = rt2800pci_read_eeprom_efuse(rt2x00dev);
else
retval = rt2800pci_read_eeprom_pci(rt2x00dev);
@@ -1145,25 +337,25 @@ static const struct rt2800_ops rt2800pci_rt2800_ops = {
.read_eeprom = rt2800pci_read_eeprom,
.hwcrypt_disabled = rt2800pci_hwcrypt_disabled,
.drv_write_firmware = rt2800pci_write_firmware,
- .drv_init_registers = rt2800pci_init_registers,
- .drv_get_txwi = rt2800pci_get_txwi,
+ .drv_init_registers = rt2800mmio_init_registers,
+ .drv_get_txwi = rt2800mmio_get_txwi,
};
static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
- .irq_handler = rt2800pci_interrupt,
- .txstatus_tasklet = rt2800pci_txstatus_tasklet,
- .pretbtt_tasklet = rt2800pci_pretbtt_tasklet,
- .tbtt_tasklet = rt2800pci_tbtt_tasklet,
- .rxdone_tasklet = rt2800pci_rxdone_tasklet,
- .autowake_tasklet = rt2800pci_autowake_tasklet,
+ .irq_handler = rt2800mmio_interrupt,
+ .txstatus_tasklet = rt2800mmio_txstatus_tasklet,
+ .pretbtt_tasklet = rt2800mmio_pretbtt_tasklet,
+ .tbtt_tasklet = rt2800mmio_tbtt_tasklet,
+ .rxdone_tasklet = rt2800mmio_rxdone_tasklet,
+ .autowake_tasklet = rt2800mmio_autowake_tasklet,
.probe_hw = rt2800_probe_hw,
.get_firmware_name = rt2800pci_get_firmware_name,
.check_firmware = rt2800_check_firmware,
.load_firmware = rt2800_load_firmware,
.initialize = rt2x00mmio_initialize,
.uninitialize = rt2x00mmio_uninitialize,
- .get_entry_state = rt2800pci_get_entry_state,
- .clear_entry = rt2800pci_clear_entry,
+ .get_entry_state = rt2800mmio_get_entry_state,
+ .clear_entry = rt2800mmio_clear_entry,
.set_device_state = rt2800pci_set_device_state,
.rfkill_poll = rt2800_rfkill_poll,
.link_stats = rt2800_link_stats,
@@ -1171,15 +363,15 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
.link_tuner = rt2800_link_tuner,
.gain_calibration = rt2800_gain_calibration,
.vco_calibration = rt2800_vco_calibration,
- .start_queue = rt2800pci_start_queue,
- .kick_queue = rt2800pci_kick_queue,
- .stop_queue = rt2800pci_stop_queue,
+ .start_queue = rt2800mmio_start_queue,
+ .kick_queue = rt2800mmio_kick_queue,
+ .stop_queue = rt2800mmio_stop_queue,
.flush_queue = rt2x00mmio_flush_queue,
- .write_tx_desc = rt2800pci_write_tx_desc,
+ .write_tx_desc = rt2800mmio_write_tx_desc,
.write_tx_data = rt2800_write_tx_data,
.write_beacon = rt2800_write_beacon,
.clear_beacon = rt2800_clear_beacon,
- .fill_rxdone = rt2800pci_fill_rxdone,
+ .fill_rxdone = rt2800mmio_fill_rxdone,
.config_shared_key = rt2800_config_shared_key,
.config_pairwise_key = rt2800_config_pairwise_key,
.config_filter = rt2800_config_filter,
@@ -1191,49 +383,6 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
.sta_remove = rt2800_sta_remove,
};
-static void rt2800pci_queue_init(struct data_queue *queue)
-{
- struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
- unsigned short txwi_size, rxwi_size;
-
- rt2800_get_txwi_rxwi_size(rt2x00dev, &txwi_size, &rxwi_size);
-
- switch (queue->qid) {
- case QID_RX:
- queue->limit = 128;
- queue->data_size = AGGREGATION_SIZE;
- queue->desc_size = RXD_DESC_SIZE;
- queue->winfo_size = rxwi_size;
- queue->priv_size = sizeof(struct queue_entry_priv_mmio);
- break;
-
- case QID_AC_VO:
- case QID_AC_VI:
- case QID_AC_BE:
- case QID_AC_BK:
- queue->limit = 64;
- queue->data_size = AGGREGATION_SIZE;
- queue->desc_size = TXD_DESC_SIZE;
- queue->winfo_size = txwi_size;
- queue->priv_size = sizeof(struct queue_entry_priv_mmio);
- break;
-
- case QID_BEACON:
- queue->limit = 8;
- queue->data_size = 0; /* No DMA required for beacons */
- queue->desc_size = TXD_DESC_SIZE;
- queue->winfo_size = txwi_size;
- queue->priv_size = sizeof(struct queue_entry_priv_mmio);
- break;
-
- case QID_ATIM:
- /* fallthrough */
- default:
- BUG();
- break;
- }
-}
-
static const struct rt2x00_ops rt2800pci_ops = {
.name = KBUILD_MODNAME,
.drv_data_size = sizeof(struct rt2800_drv_data),
@@ -1241,7 +390,7 @@ static const struct rt2x00_ops rt2800pci_ops = {
.eeprom_size = EEPROM_SIZE,
.rf_size = RF_SIZE,
.tx_queues = NUM_TX_QUEUES,
- .queue_init = rt2800pci_queue_init,
+ .queue_init = rt2800mmio_queue_init,
.lib = &rt2800pci_rt2x00_ops,
.drv = &rt2800pci_rt2800_ops,
.hw = &rt2800pci_mac80211_ops,
@@ -1253,7 +402,6 @@ static const struct rt2x00_ops rt2800pci_ops = {
/*
* RT2800pci module information.
*/
-#ifdef CONFIG_PCI
static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = {
{ PCI_DEVICE(0x1814, 0x0601) },
{ PCI_DEVICE(0x1814, 0x0681) },
@@ -1298,38 +446,15 @@ static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = {
#endif
{ 0, }
};
-#endif /* CONFIG_PCI */
MODULE_AUTHOR(DRV_PROJECT);
MODULE_VERSION(DRV_VERSION);
MODULE_DESCRIPTION("Ralink RT2800 PCI & PCMCIA Wireless LAN driver.");
MODULE_SUPPORTED_DEVICE("Ralink RT2860 PCI & PCMCIA chipset based cards");
-#ifdef CONFIG_PCI
MODULE_FIRMWARE(FIRMWARE_RT2860);
MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
-#endif /* CONFIG_PCI */
MODULE_LICENSE("GPL");
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
-static int rt2800soc_probe(struct platform_device *pdev)
-{
- return rt2x00soc_probe(pdev, &rt2800pci_ops);
-}
-
-static struct platform_driver rt2800soc_driver = {
- .driver = {
- .name = "rt2800_wmac",
- .owner = THIS_MODULE,
- .mod_name = KBUILD_MODNAME,
- },
- .probe = rt2800soc_probe,
- .remove = rt2x00soc_remove,
- .suspend = rt2x00soc_suspend,
- .resume = rt2x00soc_resume,
-};
-#endif /* CONFIG_SOC_RT288X || CONFIG_SOC_RT305X */
-
-#ifdef CONFIG_PCI
static int rt2800pci_probe(struct pci_dev *pci_dev,
const struct pci_device_id *id)
{
@@ -1344,39 +469,5 @@ static struct pci_driver rt2800pci_driver = {
.suspend = rt2x00pci_suspend,
.resume = rt2x00pci_resume,
};
-#endif /* CONFIG_PCI */
-
-static int __init rt2800pci_init(void)
-{
- int ret = 0;
-
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
- ret = platform_driver_register(&rt2800soc_driver);
- if (ret)
- return ret;
-#endif
-#ifdef CONFIG_PCI
- ret = pci_register_driver(&rt2800pci_driver);
- if (ret) {
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
- platform_driver_unregister(&rt2800soc_driver);
-#endif
- return ret;
- }
-#endif
-
- return ret;
-}
-
-static void __exit rt2800pci_exit(void)
-{
-#ifdef CONFIG_PCI
- pci_unregister_driver(&rt2800pci_driver);
-#endif
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
- platform_driver_unregister(&rt2800soc_driver);
-#endif
-}
-module_init(rt2800pci_init);
-module_exit(rt2800pci_exit);
+module_pci_driver(rt2800pci_driver);