diff options
author | David S. Miller <davem@davemloft.net> | 2012-09-30 02:30:16 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2012-09-30 02:30:16 -0400 |
commit | a248afdc1b5916c2bfd007233112333d85aa28f6 (patch) | |
tree | 49d4a0b8fdcf7624ea6b0bdf0af2567d7392210e /drivers/net/wireless/iwlwifi/pcie/trans.c | |
parent | d379142bc4d9b78cdd9fc5aa696ca1ea083fb7d4 (diff) | |
parent | c487606f835a93a725bac1aefd536be98f22474d (diff) |
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:
====================
Here is another batch of updates intended for 3.7...
Highlights include an hci_connect re-write in Bluetooth, HCI/LLC
layer separation in NFC, removal of the raw pn544 NFC driver, NFC LLCP
raw sockets support, improved IBSS auth frame handling in mac80211,
full-MAC AP mode notification support in mac80211, a lot of attention
paid to brcmfmac, and the usual level of updates to iwlwifi, ath9k,
mwifiex, and rt2x00, and various other updates.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/pcie/trans.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/pcie/trans.c | 84 |
1 files changed, 55 insertions, 29 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index 76aa5031f7b..34aee0688e0 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -216,7 +216,7 @@ static int iwl_rx_init(struct iwl_trans *trans) rxq->free_count = 0; spin_unlock_irqrestore(&rxq->lock, flags); - iwlagn_rx_replenish(trans); + iwl_rx_replenish(trans); iwl_trans_rx_hw_init(trans, rxq); @@ -855,10 +855,8 @@ static int iwl_nic_init(struct iwl_trans *trans) iwl_op_mode_nic_config(trans->op_mode); -#ifndef CONFIG_IWLWIFI_IDI /* Allocate the RX queue, or reset if it is already allocated */ iwl_rx_init(trans); -#endif /* Allocate or reset and init all Tx and Command queues */ if (iwl_tx_init(trans)) @@ -925,13 +923,10 @@ static int iwl_prepare_card_hw(struct iwl_trans *trans) /* * ucode */ -static int iwl_load_section(struct iwl_trans *trans, u8 section_num, - const struct fw_desc *section) +static int iwl_load_firmware_chunk(struct iwl_trans *trans, u32 dst_addr, + dma_addr_t phy_addr, u32 byte_cnt) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - dma_addr_t phy_addr = section->p_addr; - u32 byte_cnt = section->len; - u32 dst_addr = section->offset; int ret; trans_pcie->ucode_write_complete = false; @@ -945,8 +940,8 @@ static int iwl_load_section(struct iwl_trans *trans, u8 section_num, dst_addr); iwl_write_direct32(trans, - FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL), - phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK); + FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL), + phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK); iwl_write_direct32(trans, FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), @@ -965,33 +960,64 @@ static int iwl_load_section(struct iwl_trans *trans, u8 section_num, FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE | FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD); - IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n", - section_num); ret = wait_event_timeout(trans_pcie->ucode_write_waitq, trans_pcie->ucode_write_complete, 5 * HZ); if (!ret) { - IWL_ERR(trans, "Could not load the [%d] uCode section\n", - section_num); + IWL_ERR(trans, "Failed to load firmware chunk!\n"); return -ETIMEDOUT; } return 0; } -static int iwl_load_given_ucode(struct iwl_trans *trans, - const struct fw_img *image) +static int iwl_load_section(struct iwl_trans *trans, u8 section_num, + const struct fw_desc *section) { + u8 *v_addr; + dma_addr_t p_addr; + u32 offset; int ret = 0; - int i; - for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) { - if (!image->sec[i].p_addr) - break; + IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n", + section_num); - ret = iwl_load_section(trans, i, &image->sec[i]); - if (ret) - return ret; + v_addr = dma_alloc_coherent(trans->dev, PAGE_SIZE, &p_addr, GFP_KERNEL); + if (!v_addr) + return -ENOMEM; + + for (offset = 0; offset < section->len; offset += PAGE_SIZE) { + u32 copy_size; + + copy_size = min_t(u32, PAGE_SIZE, section->len - offset); + + memcpy(v_addr, (u8 *)section->data + offset, copy_size); + ret = iwl_load_firmware_chunk(trans, section->offset + offset, + p_addr, copy_size); + if (ret) { + IWL_ERR(trans, + "Could not load the [%d] uCode section\n", + section_num); + break; } + } + + dma_free_coherent(trans->dev, PAGE_SIZE, v_addr, p_addr); + return ret; +} + +static int iwl_load_given_ucode(struct iwl_trans *trans, + const struct fw_img *image) +{ + int i, ret = 0; + + for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) { + if (!image->sec[i].data) + break; + + ret = iwl_load_section(trans, i, &image->sec[i]); + if (ret) + return ret; + } /* Remove all resets to allow NIC to operate */ iwl_write32(trans, CSR_RESET, 0); @@ -1184,9 +1210,8 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) */ if (test_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status)) { iwl_trans_tx_stop(trans); -#ifndef CONFIG_IWLWIFI_IDI iwl_trans_rx_stop(trans); -#endif + /* Power-down device's busmaster DMA clocks */ iwl_write_prph(trans, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); @@ -1457,14 +1482,16 @@ static void iwl_trans_pcie_stop_hw(struct iwl_trans *trans, bool hw_rfkill; unsigned long flags; + spin_lock_irqsave(&trans_pcie->irq_lock, flags); + iwl_disable_interrupts(trans); + spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + iwl_apm_stop(trans); spin_lock_irqsave(&trans_pcie->irq_lock, flags); iwl_disable_interrupts(trans); spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); - iwl_write32(trans, CSR_INT, 0xFFFFFFFF); - if (!op_mode_leaving) { /* * Even if we stop the HW, we still want the RF kill @@ -1552,9 +1579,8 @@ void iwl_trans_pcie_free(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); iwl_trans_pcie_tx_free(trans); -#ifndef CONFIG_IWLWIFI_IDI iwl_trans_pcie_rx_free(trans); -#endif + if (trans_pcie->irq_requested == true) { free_irq(trans_pcie->irq, trans); iwl_free_isr_ict(trans); |