X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/060c85b4cbcec4bd77bf5485c6bbc7539aecb62b..f11c8d92017610e27db2dafc75f7c592fbd20f45:/package/rt2x00/src/rt2x00pci.c diff --git a/package/rt2x00/src/rt2x00pci.c b/package/rt2x00/src/rt2x00pci.c index 4156ea36a..04663eb31 100644 --- a/package/rt2x00/src/rt2x00pci.c +++ b/package/rt2x00/src/rt2x00pci.c @@ -21,7 +21,6 @@ /* Module: rt2x00pci Abstract: rt2x00 generic pci device routines. - Supported chipsets: rt2460, rt2560, rt2561, rt2561s & rt2661. */ /* @@ -29,10 +28,9 @@ */ #define DRV_NAME "rt2x00pci" +#include #include #include -#include -#include #include #include "rt2x00.h" @@ -42,15 +40,15 @@ * Beacon handlers. */ int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_control *control) + struct ieee80211_tx_control *control) { struct rt2x00_dev *rt2x00dev = hw->priv; struct data_ring *ring = - rt2x00_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); + rt2x00lib_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); struct data_entry *entry = rt2x00_get_data_entry(ring); /* - * Just in case the ieee80211 doesn't set this, + * Just in case mac80211 doesn't set this correctly, * but we need this queue set for the descriptor * initialization. */ @@ -60,8 +58,9 @@ int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb, * Update the beacon entry. */ memcpy(entry->data_addr, skb->data, skb->len); - rt2x00lib_write_tx_desc(rt2x00dev, entry, entry->priv, - (struct ieee80211_hdr*)skb->data, skb->len, control); + rt2x00lib_write_tx_desc(rt2x00dev, entry->priv, + (struct ieee80211_hdr *)skb->data, + skb->len, control); /* * Enable beacon generation. @@ -72,32 +71,14 @@ int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb, } EXPORT_SYMBOL_GPL(rt2x00pci_beacon_update); -void rt2x00pci_beacondone(struct rt2x00_dev *rt2x00dev, const int queue) -{ - struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue); - struct data_entry *entry = rt2x00_get_data_entry(ring); - struct sk_buff *skb; - - skb = ieee80211_beacon_get(rt2x00dev->hw, - rt2x00dev->interface.id, &entry->tx_status.control); - if (!skb) - return; - - rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw, skb, - &entry->tx_status.control); - - dev_kfree_skb(skb); -} -EXPORT_SYMBOL_GPL(rt2x00pci_beacondone); - /* * TX data handlers. */ int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev, - struct data_ring *ring, struct sk_buff *skb, - struct ieee80211_tx_control *control) + struct data_ring *ring, struct sk_buff *skb, + struct ieee80211_tx_control *control) { - struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr*)skb->data; + struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data; struct data_entry *entry = rt2x00_get_data_entry(ring); struct data_desc *txd = entry->priv; u32 word; @@ -109,20 +90,21 @@ int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev, rt2x00_desc_read(txd, 0, &word); - if (rt2x00_get_field32(word, TXD_ENTRY_AVAILABLE)) { + if (rt2x00_get_field32(word, TXD_ENTRY_OWNER_NIC) || + rt2x00_get_field32(word, TXD_ENTRY_VALID)) { ERROR(rt2x00dev, - "Arrived at non-free entry in the non-full queue %d.\n" - "Please file bug report to %s.\n", - control->queue, DRV_PROJECT); + "Arrived at non-free entry in the non-full queue %d.\n" + "Please file bug report to %s.\n", + control->queue, DRV_PROJECT); ieee80211_stop_queue(rt2x00dev->hw, control->queue); return -EINVAL; } - memcpy(entry->data_addr, skb->data, skb->len); - rt2x00lib_write_tx_desc(rt2x00dev, entry, txd, ieee80211hdr, - skb->len, control); - memcpy(&entry->tx_status.control, control, sizeof(*control)); entry->skb = skb; + memcpy(&entry->tx_status.control, control, sizeof(*control)); + memcpy(entry->data_addr, skb->data, skb->len); + rt2x00lib_write_tx_desc(rt2x00dev, txd, ieee80211hdr, + skb->len, control); rt2x00_ring_index_inc(ring); @@ -133,6 +115,68 @@ int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev, } EXPORT_SYMBOL_GPL(rt2x00pci_write_tx_data); +/* + * RX data handlers. + */ +void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev) +{ + struct data_ring *ring = rt2x00dev->rx; + struct data_entry *entry; + struct data_desc *rxd; + struct sk_buff *skb; + struct ieee80211_hdr *hdr; + struct rxdata_entry_desc desc; + int header_size; + int align; + u32 word; + + while (1) { + entry = rt2x00_get_data_entry(ring); + rxd = entry->priv; + rt2x00_desc_read(rxd, 0, &word); + + if (rt2x00_get_field32(word, RXD_ENTRY_OWNER_NIC)) + break; + + memset(&desc, 0x00, sizeof(desc)); + rt2x00dev->ops->lib->fill_rxdone(entry, &desc); + + hdr = (struct ieee80211_hdr *)entry->data_addr; + header_size = + ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)); + + /* + * The data behind the ieee80211 header must be + * aligned on a 4 byte boundary. + */ + align = header_size % 4; + + /* + * Allocate the sk_buffer, initialize it and copy + * all data into it. + */ + skb = dev_alloc_skb(desc.size + align); + if (!skb) + return; + + skb_reserve(skb, align); + memcpy(skb_put(skb, desc.size), entry->data_addr, desc.size); + + /* + * Send the frame to rt2x00lib for further processing. + */ + rt2x00lib_rxdone(entry, skb, &desc); + + if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) { + rt2x00_set_field32(&word, RXD_ENTRY_OWNER_NIC, 1); + rt2x00_desc_write(rxd, 0, word); + } + + rt2x00_ring_index_inc(ring); + } +} +EXPORT_SYMBOL_GPL(rt2x00pci_rxdone); + /* * Device initialization handlers. */ @@ -143,20 +187,20 @@ EXPORT_SYMBOL_GPL(rt2x00pci_write_tx_data); #define data_addr_offset(__ring, __i) \ ({ \ - (__ring)->data_addr \ - + ((__ring)->stats.limit * (__ring)->desc_size) \ - + ((__i) * (__ring)->data_size); \ + (__ring)->data_addr + \ + ((__ring)->stats.limit * (__ring)->desc_size) + \ + ((__i) * (__ring)->data_size); \ }) #define data_dma_offset(__ring, __i) \ ({ \ - (__ring)->data_dma \ - + ((__ring)->stats.limit * (__ring)->desc_size) \ - + ((__i) * (__ring)->data_size); \ + (__ring)->data_dma + \ + ((__ring)->stats.limit * (__ring)->desc_size) + \ + ((__i) * (__ring)->data_size); \ }) -static int rt2x00pci_alloc_ring(struct rt2x00_dev *rt2x00dev, - struct data_ring *ring) +static int rt2x00pci_alloc_dma(struct rt2x00_dev *rt2x00dev, + struct data_ring *ring) { unsigned int i; @@ -164,7 +208,8 @@ static int rt2x00pci_alloc_ring(struct rt2x00_dev *rt2x00dev, * Allocate DMA memory for descriptor and buffer. */ ring->data_addr = pci_alloc_consistent(rt2x00dev_pci(rt2x00dev), - rt2x00_get_ring_size(ring), &ring->data_dma); + rt2x00_get_ring_size(ring), + &ring->data_dma); if (!ring->data_addr) return -ENOMEM; @@ -181,6 +226,16 @@ static int rt2x00pci_alloc_ring(struct rt2x00_dev *rt2x00dev, return 0; } +static void rt2x00pci_free_dma(struct rt2x00_dev *rt2x00dev, + struct data_ring *ring) +{ + if (ring->data_addr) + pci_free_consistent(rt2x00dev_pci(rt2x00dev), + rt2x00_get_ring_size(ring), + ring->data_addr, ring->data_dma); + ring->data_addr = NULL; +} + int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev) { struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev); @@ -191,7 +246,7 @@ int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev) * Allocate DMA */ ring_for_each(rt2x00dev, ring) { - status = rt2x00pci_alloc_ring(rt2x00dev, ring); + status = rt2x00pci_alloc_dma(rt2x00dev, ring); if (status) goto exit; } @@ -200,10 +255,10 @@ int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev) * Register interrupt handler. */ status = request_irq(pci_dev->irq, rt2x00dev->ops->lib->irq_handler, - IRQF_SHARED, pci_dev->driver->name, rt2x00dev); + IRQF_SHARED, pci_name(pci_dev), rt2x00dev); if (status) { ERROR(rt2x00dev, "IRQ %d allocation failed (error %d).\n", - pci_dev->irq, status); + pci_dev->irq, status); return status; } @@ -228,43 +283,58 @@ void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev) /* * Free DMA */ - ring_for_each(rt2x00dev, ring) { - if (ring->data_addr) - pci_free_consistent(rt2x00dev_pci(rt2x00dev), - rt2x00_get_ring_size(ring), - ring->data_addr, ring->data_dma); - ring->data_addr = NULL; - } + ring_for_each(rt2x00dev, ring) + rt2x00pci_free_dma(rt2x00dev, ring); } EXPORT_SYMBOL_GPL(rt2x00pci_uninitialize); /* * PCI driver handlers. */ -static int rt2x00pci_alloc_csr(struct rt2x00_dev *rt2x00dev) +static void rt2x00pci_free_reg(struct rt2x00_dev *rt2x00dev) { - rt2x00dev->csr_addr = ioremap( - pci_resource_start(rt2x00dev_pci(rt2x00dev), 0), - pci_resource_len(rt2x00dev_pci(rt2x00dev), 0)); - if (!rt2x00dev->csr_addr) { - ERROR(rt2x00dev, "Ioremap failed.\n"); - return -ENOMEM; - } + kfree(rt2x00dev->rf); + rt2x00dev->rf = NULL; - return 0; -} + kfree(rt2x00dev->eeprom); + rt2x00dev->eeprom = NULL; -static void rt2x00pci_free_csr(struct rt2x00_dev *rt2x00dev) -{ if (rt2x00dev->csr_addr) { iounmap(rt2x00dev->csr_addr); rt2x00dev->csr_addr = NULL; } } +static int rt2x00pci_alloc_reg(struct rt2x00_dev *rt2x00dev) +{ + struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev); + + rt2x00dev->csr_addr = ioremap(pci_resource_start(pci_dev, 0), + pci_resource_len(pci_dev, 0)); + if (!rt2x00dev->csr_addr) + goto exit; + + rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL); + if (!rt2x00dev->eeprom) + goto exit; + + rt2x00dev->rf = kzalloc(rt2x00dev->ops->rf_size, GFP_KERNEL); + if (!rt2x00dev->rf) + goto exit; + + return 0; + +exit: + ERROR_PROBE("Failed to allocate registers.\n"); + + rt2x00pci_free_reg(rt2x00dev); + + return -ENOMEM; +} + int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) { - struct rt2x00_ops *ops = (struct rt2x00_ops*)id->driver_data; + struct rt2x00_ops *ops = (struct rt2x00_ops *)id->driver_data; struct ieee80211_hw *hw; struct rt2x00_dev *rt2x00dev; int retval; @@ -304,22 +374,21 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) rt2x00dev = hw->priv; rt2x00dev->dev = pci_dev; - rt2x00dev->device = &pci_dev->dev; rt2x00dev->ops = ops; rt2x00dev->hw = hw; - retval = rt2x00pci_alloc_csr(rt2x00dev); + retval = rt2x00pci_alloc_reg(rt2x00dev); if (retval) goto exit_free_device; retval = rt2x00lib_probe_dev(rt2x00dev); if (retval) - goto exit_free_csr; + goto exit_free_reg; return 0; -exit_free_csr: - rt2x00pci_free_csr(rt2x00dev); +exit_free_reg: + rt2x00pci_free_reg(rt2x00dev); exit_free_device: ieee80211_free_hw(hw); @@ -346,6 +415,7 @@ void rt2x00pci_remove(struct pci_dev *pci_dev) * Free all allocated data. */ rt2x00lib_remove_dev(rt2x00dev); + rt2x00pci_free_reg(rt2x00dev); ieee80211_free_hw(hw); /* @@ -368,7 +438,7 @@ int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state) if (retval) return retval; - rt2x00pci_free_csr(rt2x00dev); + rt2x00pci_free_reg(rt2x00dev); pci_save_state(pci_dev); pci_disable_device(pci_dev); @@ -389,11 +459,20 @@ int rt2x00pci_resume(struct pci_dev *pci_dev) return -EIO; } - retval = rt2x00pci_alloc_csr(rt2x00dev); + retval = rt2x00pci_alloc_reg(rt2x00dev); if (retval) return retval; - return rt2x00lib_resume(rt2x00dev); + retval = rt2x00lib_resume(rt2x00dev); + if (retval) + goto exit_free_reg; + + return 0; + +exit_free_reg: + rt2x00pci_free_reg(rt2x00dev); + + return retval; } EXPORT_SYMBOL_GPL(rt2x00pci_resume); #endif /* CONFIG_PM */