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path: root/drivers/net/wireless/rt2x00/rt2800usb.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800usb.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800usb.c293
1 files changed, 101 insertions, 192 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 0f8b84b7224c..5a2dfe87c6b6 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -28,7 +28,6 @@
Supported chipsets: RT2800U.
*/
-#include <linux/crc-ccitt.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
@@ -45,7 +44,7 @@
/*
* Allow hardware encryption to be disabled.
*/
-static int modparam_nohwcrypt = 1;
+static int modparam_nohwcrypt = 0;
module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
@@ -57,84 +56,10 @@ static char *rt2800usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
return FIRMWARE_RT2870;
}
-static bool rt2800usb_check_crc(const u8 *data, const size_t len)
-{
- u16 fw_crc;
- u16 crc;
-
- /*
- * The last 2 bytes in the firmware array are the crc checksum itself,
- * this means that we should never pass those 2 bytes to the crc
- * algorithm.
- */
- fw_crc = (data[len - 2] << 8 | data[len - 1]);
-
- /*
- * Use the crc ccitt algorithm.
- * This will return the same value as the legacy driver which
- * used bit ordering reversion on the both the firmware bytes
- * before input input as well as on the final output.
- * Obviously using crc ccitt directly is much more efficient.
- */
- crc = crc_ccitt(~0, data, len - 2);
-
- /*
- * There is a small difference between the crc-itu-t + bitrev and
- * the crc-ccitt crc calculation. In the latter method the 2 bytes
- * will be swapped, use swab16 to convert the crc to the correct
- * value.
- */
- crc = swab16(crc);
-
- return fw_crc == crc;
-}
-
-static int rt2800usb_check_firmware(struct rt2x00_dev *rt2x00dev,
+static int rt2800usb_write_firmware(struct rt2x00_dev *rt2x00dev,
const u8 *data, const size_t len)
{
- size_t offset = 0;
-
- /*
- * Firmware files:
- * There are 2 variations of the rt2870 firmware.
- * a) size: 4kb
- * b) size: 8kb
- * Note that (b) contains 2 separate firmware blobs of 4k
- * within the file. The first blob is the same firmware as (a),
- * but the second blob is for the additional chipsets.
- */
- if (len != 4096 && len != 8192)
- return FW_BAD_LENGTH;
-
- /*
- * Check if we need the upper 4kb firmware data or not.
- */
- if ((len == 4096) &&
- !rt2x00_rt(rt2x00dev, RT2860) &&
- !rt2x00_rt(rt2x00dev, RT2872) &&
- !rt2x00_rt(rt2x00dev, RT3070))
- return FW_BAD_VERSION;
-
- /*
- * 8kb firmware files must be checked as if it were
- * 2 separate firmware files.
- */
- while (offset < len) {
- if (!rt2800usb_check_crc(data + offset, 4096))
- return FW_BAD_CRC;
-
- offset += 4096;
- }
-
- return FW_OK;
-}
-
-static int rt2800usb_load_firmware(struct rt2x00_dev *rt2x00dev,
- const u8 *data, const size_t len)
-{
- unsigned int i;
int status;
- u32 reg;
u32 offset;
u32 length;
@@ -152,28 +77,10 @@ static int rt2800usb_load_firmware(struct rt2x00_dev *rt2x00dev,
}
/*
- * Wait for stable hardware.
- */
- for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2800_register_read(rt2x00dev, MAC_CSR0, &reg);
- if (reg && reg != ~0)
- break;
- msleep(1);
- }
-
- if (i == REGISTER_BUSY_COUNT) {
- ERROR(rt2x00dev, "Unstable hardware.\n");
- return -EBUSY;
- }
-
- /*
* Write firmware to device.
*/
- rt2x00usb_vendor_request_large_buff(rt2x00dev, USB_MULTI_WRITE,
- USB_VENDOR_REQUEST_OUT,
- FIRMWARE_IMAGE_BASE,
- data + offset, length,
- REGISTER_TIMEOUT32(length));
+ rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
+ data + offset, length);
rt2800_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
rt2800_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
@@ -196,7 +103,7 @@ static int rt2800usb_load_firmware(struct rt2x00_dev *rt2x00dev,
/*
* Send signal to firmware during boot time.
*/
- rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0xff, 0, 0);
+ rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
if (rt2x00_rt(rt2x00dev, RT3070) ||
rt2x00_rt(rt2x00dev, RT3071) ||
@@ -206,28 +113,6 @@ static int rt2800usb_load_firmware(struct rt2x00_dev *rt2x00dev,
udelay(10);
}
- /*
- * Wait for device to stabilize.
- */
- for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, &reg);
- if (rt2x00_get_field32(reg, PBF_SYS_CTRL_READY))
- break;
- msleep(1);
- }
-
- if (i == REGISTER_BUSY_COUNT) {
- ERROR(rt2x00dev, "PBF system register not ready.\n");
- return -EBUSY;
- }
-
- /*
- * Initialize firmware.
- */
- rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
- rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
- msleep(1);
-
return 0;
}
@@ -246,6 +131,44 @@ static void rt2800usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
}
+static int rt2800usb_init_registers(struct rt2x00_dev *rt2x00dev)
+{
+ u32 reg;
+ int i;
+
+ /*
+ * Wait until BBP and RF are ready.
+ */
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2800_register_read(rt2x00dev, MAC_CSR0, &reg);
+ if (reg && reg != ~0)
+ break;
+ msleep(1);
+ }
+
+ if (i == REGISTER_BUSY_COUNT) {
+ ERROR(rt2x00dev, "Unstable hardware.\n");
+ return -EBUSY;
+ }
+
+ rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, &reg);
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, reg & ~0x00002000);
+
+ rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
+ rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_CSR, 1);
+ rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_BBP, 1);
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+
+ rt2800_register_write(rt2x00dev, USB_DMA_CFG, 0x00000000);
+
+ rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
+ USB_MODE_RESET, REGISTER_TIMEOUT);
+
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
+
+ return 0;
+}
+
static int rt2800usb_enable_radio(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
@@ -371,7 +294,9 @@ static int rt2800usb_set_device_state(struct rt2x00_dev *rt2x00dev,
rt2800usb_toggle_rx(rt2x00dev, state);
break;
case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_ON_ISR:
case STATE_RADIO_IRQ_OFF:
+ case STATE_RADIO_IRQ_OFF_ISR:
/* No support, but no error either */
break;
case STATE_DEEP_SLEEP:
@@ -395,25 +320,29 @@ static int rt2800usb_set_device_state(struct rt2x00_dev *rt2x00dev,
/*
* TX descriptor initialization
*/
+static void rt2800usb_write_tx_data(struct queue_entry* entry,
+ struct txentry_desc *txdesc)
+{
+ __le32 *txwi = (__le32 *) (entry->skb->data + TXINFO_DESC_SIZE);
+
+ rt2800_write_txwi(txwi, txdesc);
+}
+
+
static void rt2800usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb,
struct txentry_desc *txdesc)
{
struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
- __le32 *txi = (__le32 *)(skb->data - TXWI_DESC_SIZE - TXINFO_DESC_SIZE);
+ __le32 *txi = (__le32 *) skb->data;
u32 word;
/*
- * Initialize TXWI descriptor
- */
- rt2800_write_txwi(skb, txdesc);
-
- /*
* Initialize TXINFO descriptor
*/
rt2x00_desc_read(txi, 0, &word);
rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_PKT_LEN,
- skb->len + TXWI_DESC_SIZE);
+ skb->len - TXINFO_DESC_SIZE);
rt2x00_set_field32(&word, TXINFO_W0_WIV,
!test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags));
rt2x00_set_field32(&word, TXINFO_W0_QSEL, 2);
@@ -426,6 +355,7 @@ static void rt2800usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
/*
* Register descriptor details in skb frame descriptor.
*/
+ skbdesc->flags |= SKBDESC_DESC_IN_SKB;
skbdesc->desc = txi;
skbdesc->desc_len = TXINFO_DESC_SIZE + TXWI_DESC_SIZE;
}
@@ -433,51 +363,6 @@ static void rt2800usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
/*
* TX data initialization
*/
-static void rt2800usb_write_beacon(struct queue_entry *entry,
- struct txentry_desc *txdesc)
-{
- struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- unsigned int beacon_base;
- u32 reg;
-
- /*
- * Disable beaconing while we are reloading the beacon data,
- * otherwise we might be sending out invalid data.
- */
- rt2800_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 0);
- rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
-
- /*
- * Add the TXWI for the beacon to the skb.
- */
- rt2800_write_txwi(entry->skb, txdesc);
- skb_push(entry->skb, TXWI_DESC_SIZE);
-
- /*
- * Write entire beacon with descriptor to register.
- */
- beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
- rt2x00usb_vendor_request_large_buff(rt2x00dev, USB_MULTI_WRITE,
- USB_VENDOR_REQUEST_OUT, beacon_base,
- entry->skb->data, entry->skb->len,
- REGISTER_TIMEOUT32(entry->skb->len));
-
- /*
- * Enable beaconing again.
- */
- 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);
- rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
-
- /*
- * Clean up the beacon skb.
- */
- dev_kfree_skb(entry->skb);
- entry->skb = NULL;
-}
-
static int rt2800usb_get_tx_data_len(struct queue_entry *entry)
{
int length;
@@ -568,7 +453,7 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
/*
* Process the RXWI structure.
*/
- rt2800_process_rxwi(entry->skb, rxdesc);
+ rt2800_process_rxwi(entry, rxdesc);
}
/*
@@ -585,24 +470,10 @@ static int rt2800usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
return rt2800_validate_eeprom(rt2x00dev);
}
-static const struct rt2800_ops rt2800usb_rt2800_ops = {
- .register_read = rt2x00usb_register_read,
- .register_read_lock = rt2x00usb_register_read_lock,
- .register_write = rt2x00usb_register_write,
- .register_write_lock = rt2x00usb_register_write_lock,
-
- .register_multiread = rt2x00usb_register_multiread,
- .register_multiwrite = rt2x00usb_register_multiwrite,
-
- .regbusy_read = rt2x00usb_regbusy_read,
-};
-
static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
- rt2x00dev->priv = (void *)&rt2800usb_rt2800_ops;
-
/*
* Allocate eeprom data.
*/
@@ -635,6 +506,8 @@ static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
__set_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags);
if (!modparam_nohwcrypt)
__set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags);
/*
* Set the rssi offset.
@@ -644,11 +517,45 @@ static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
return 0;
}
+static const struct ieee80211_ops rt2800usb_mac80211_ops = {
+ .tx = rt2x00mac_tx,
+ .start = rt2x00mac_start,
+ .stop = rt2x00mac_stop,
+ .add_interface = rt2x00mac_add_interface,
+ .remove_interface = rt2x00mac_remove_interface,
+ .config = rt2x00mac_config,
+ .configure_filter = rt2x00mac_configure_filter,
+ .set_tim = rt2x00mac_set_tim,
+ .set_key = rt2x00mac_set_key,
+ .sw_scan_start = rt2x00mac_sw_scan_start,
+ .sw_scan_complete = rt2x00mac_sw_scan_complete,
+ .get_stats = rt2x00mac_get_stats,
+ .get_tkip_seq = rt2800_get_tkip_seq,
+ .set_rts_threshold = rt2800_set_rts_threshold,
+ .bss_info_changed = rt2x00mac_bss_info_changed,
+ .conf_tx = rt2800_conf_tx,
+ .get_tsf = rt2800_get_tsf,
+ .rfkill_poll = rt2x00mac_rfkill_poll,
+ .ampdu_action = rt2800_ampdu_action,
+};
+
+static const struct rt2800_ops rt2800usb_rt2800_ops = {
+ .register_read = rt2x00usb_register_read,
+ .register_read_lock = rt2x00usb_register_read_lock,
+ .register_write = rt2x00usb_register_write,
+ .register_write_lock = rt2x00usb_register_write_lock,
+ .register_multiread = rt2x00usb_register_multiread,
+ .register_multiwrite = rt2x00usb_register_multiwrite,
+ .regbusy_read = rt2x00usb_regbusy_read,
+ .drv_write_firmware = rt2800usb_write_firmware,
+ .drv_init_registers = rt2800usb_init_registers,
+};
+
static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
.probe_hw = rt2800usb_probe_hw,
.get_firmware_name = rt2800usb_get_firmware_name,
- .check_firmware = rt2800usb_check_firmware,
- .load_firmware = rt2800usb_load_firmware,
+ .check_firmware = rt2800_check_firmware,
+ .load_firmware = rt2800_load_firmware,
.initialize = rt2x00usb_initialize,
.uninitialize = rt2x00usb_uninitialize,
.clear_entry = rt2x00usb_clear_entry,
@@ -657,9 +564,10 @@ static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
.link_stats = rt2800_link_stats,
.reset_tuner = rt2800_reset_tuner,
.link_tuner = rt2800_link_tuner,
+ .watchdog = rt2x00usb_watchdog,
.write_tx_desc = rt2800usb_write_tx_desc,
- .write_tx_data = rt2x00usb_write_tx_data,
- .write_beacon = rt2800usb_write_beacon,
+ .write_tx_data = rt2800usb_write_tx_data,
+ .write_beacon = rt2800_write_beacon,
.get_tx_data_len = rt2800usb_get_tx_data_len,
.kick_tx_queue = rt2x00usb_kick_tx_queue,
.kill_tx_queue = rt2x00usb_kill_tx_queue,
@@ -706,7 +614,8 @@ static const struct rt2x00_ops rt2800usb_ops = {
.tx = &rt2800usb_queue_tx,
.bcn = &rt2800usb_queue_bcn,
.lib = &rt2800usb_rt2x00_ops,
- .hw = &rt2800_mac80211_ops,
+ .drv = &rt2800usb_rt2800_ops,
+ .hw = &rt2800usb_mac80211_ops,
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
.debugfs = &rt2800_rt2x00debug,
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-08 22:45:30 +0000