diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 155 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.h | 15 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800pci.c | 101 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800usb.c | 119 |
4 files changed, 179 insertions, 211 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 9587236b5d5..b66e0fd8f0f 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -33,6 +33,7 @@ Abstract: rt2800 generic device routines. */ +#include <linux/crc-ccitt.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> @@ -272,6 +273,160 @@ int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev) } EXPORT_SYMBOL_GPL(rt2800_wait_wpdma_ready); +static bool rt2800_check_firmware_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; +} + +int rt2800_check_firmware(struct rt2x00_dev *rt2x00dev, + const u8 *data, const size_t len) +{ + size_t offset = 0; + size_t fw_len; + bool multiple; + + /* + * PCI(e) & SOC devices require firmware with a length + * of 8kb. USB devices require firmware files with a length + * of 4kb. Certain USB chipsets however require different firmware, + * which Ralink only provides attached to the original firmware + * file. Thus for USB devices, firmware files have a length + * which is a multiple of 4kb. + */ + if (rt2x00_is_usb(rt2x00dev)) { + fw_len = 4096; + multiple = true; + } else { + fw_len = 8192; + multiple = true; + } + + /* + * Validate the firmware length + */ + if (len != fw_len && (!multiple || (len % fw_len) != 0)) + return FW_BAD_LENGTH; + + /* + * Check if the chipset requires one of the upper parts + * of the firmware. + */ + if (rt2x00_is_usb(rt2x00dev) && + !rt2x00_rt(rt2x00dev, RT2860) && + !rt2x00_rt(rt2x00dev, RT2872) && + !rt2x00_rt(rt2x00dev, RT3070) && + ((len / fw_len) == 1)) + return FW_BAD_VERSION; + + /* + * 8kb firmware files must be checked as if it were + * 2 separate firmware files. + */ + while (offset < len) { + if (!rt2800_check_firmware_crc(data + offset, fw_len)) + return FW_BAD_CRC; + + offset += fw_len; + } + + return FW_OK; +} +EXPORT_SYMBOL_GPL(rt2800_check_firmware); + +int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev, + const u8 *data, const size_t len) +{ + unsigned int i; + u32 reg; + + /* + * Wait for stable hardware. + */ + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2800_register_read(rt2x00dev, MAC_CSR0, ®); + if (reg && reg != ~0) + break; + msleep(1); + } + + if (i == REGISTER_BUSY_COUNT) { + ERROR(rt2x00dev, "Unstable hardware.\n"); + return -EBUSY; + } + + if (rt2x00_is_pci(rt2x00dev)) + rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002); + + /* + * Disable DMA, will be reenabled later when enabling + * the radio. + */ + rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); + rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_DMA_BUSY, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_RX_DMA_BUSY, 0); + rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1); + rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg); + + /* + * Write firmware to the device. + */ + rt2800_drv_write_firmware(rt2x00dev, data, len); + + /* + * Wait for device to stabilize. + */ + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, ®); + 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; +} +EXPORT_SYMBOL_GPL(rt2800_load_firmware); + void rt2800_write_txwi(__le32 *txwi, struct txentry_desc *txdesc) { u32 word; diff --git a/drivers/net/wireless/rt2x00/rt2800lib.h b/drivers/net/wireless/rt2x00/rt2800lib.h index 10f8f2f8d65..cecbd3abc35 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.h +++ b/drivers/net/wireless/rt2x00/rt2800lib.h @@ -41,6 +41,8 @@ struct rt2800_ops { const unsigned int offset, const struct rt2x00_field32 field, u32 *reg); + int (*drv_write_firmware)(struct rt2x00_dev *rt2x00dev, + const u8 *data, const size_t len); int (*drv_init_registers)(struct rt2x00_dev *rt2x00dev); }; @@ -109,6 +111,14 @@ static inline int rt2800_regbusy_read(struct rt2x00_dev *rt2x00dev, return rt2800ops->regbusy_read(rt2x00dev, offset, field, reg); } +static inline int rt2800_drv_write_firmware(struct rt2x00_dev *rt2x00dev, + const u8 *data, const size_t len) +{ + const struct rt2800_ops *rt2800ops = rt2x00dev->priv; + + return rt2800ops->drv_write_firmware(rt2x00dev, data, len); +} + static inline int rt2800_drv_init_registers(struct rt2x00_dev *rt2x00dev) { const struct rt2800_ops *rt2800ops = rt2x00dev->priv; @@ -120,6 +130,11 @@ void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev, const u8 command, const u8 token, const u8 arg0, const u8 arg1); +int rt2800_check_firmware(struct rt2x00_dev *rt2x00dev, + const u8 *data, const size_t len); +int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev, + const u8 *data, const size_t len); + void rt2800_write_txwi(__le32 *txwi, struct txentry_desc *txdesc); void rt2800_process_rxwi(struct queue_entry *entry, struct rxdone_entry_desc *txdesc); diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 520236d0dc7..0fdd58b9dec 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -31,7 +31,6 @@ Supported chipsets: RT2800E & RT2800ED. */ -#include <linux/crc-ccitt.h> #include <linux/delay.h> #include <linux/etherdevice.h> #include <linux/init.h> @@ -192,82 +191,14 @@ static char *rt2800pci_get_firmware_name(struct rt2x00_dev *rt2x00dev) return FIRMWARE_RT2860; } -static int rt2800pci_check_firmware(struct rt2x00_dev *rt2x00dev, +static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev, const u8 *data, const size_t len) { - u16 fw_crc; - u16 crc; - - /* - * Only support 8kb firmware files. - */ - if (len != 8192) - return FW_BAD_LENGTH; - - /* - * 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) ? FW_OK : FW_BAD_CRC; -} - -static int rt2800pci_load_firmware(struct rt2x00_dev *rt2x00dev, - const u8 *data, const size_t len) -{ - unsigned int i; u32 reg; - /* - * Wait for stable hardware. - */ - for (i = 0; i < REGISTER_BUSY_COUNT; i++) { - rt2800_register_read(rt2x00dev, MAC_CSR0, ®); - if (reg && reg != ~0) - break; - msleep(1); - } - - if (i == REGISTER_BUSY_COUNT) { - ERROR(rt2x00dev, "Unstable hardware.\n"); - return -EBUSY; - } - - rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002); rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000); /* - * Disable DMA, will be reenabled later when enabling - * the radio. - */ - rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); - rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0); - rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_DMA_BUSY, 0); - rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0); - rt2x00_set_field32(®, WPDMA_GLO_CFG_RX_DMA_BUSY, 0); - rt2x00_set_field32(®, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1); - rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg); - - /* * enable Host program ram write selection */ reg = 0; @@ -278,34 +209,11 @@ static int rt2800pci_load_firmware(struct rt2x00_dev *rt2x00dev, * Write firmware to device. */ rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE, - data, len); + data, len); rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000); rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001); - /* - * Wait for device to stabilize. - */ - for (i = 0; i < REGISTER_BUSY_COUNT; i++) { - rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, ®); - 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; - } - - /* - * Disable interrupts - */ - rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF); - - /* - * Initialize BBP R/W access agent - */ rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0); rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0); @@ -1029,6 +937,7 @@ static const struct rt2800_ops rt2800pci_rt2800_ops = { .regbusy_read = rt2x00pci_regbusy_read, + .drv_write_firmware = rt2800pci_write_firmware, .drv_init_registers = rt2800pci_init_registers, }; @@ -1114,8 +1023,8 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = { .irq_handler_thread = rt2800pci_interrupt_thread, .probe_hw = rt2800pci_probe_hw, .get_firmware_name = rt2800pci_get_firmware_name, - .check_firmware = rt2800pci_check_firmware, - .load_firmware = rt2800pci_load_firmware, + .check_firmware = rt2800_check_firmware, + .load_firmware = rt2800_load_firmware, .initialize = rt2x00pci_initialize, .uninitialize = rt2x00pci_uninitialize, .get_entry_state = rt2800pci_get_entry_state, diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index f8eb6d776d9..7b8d51f5803 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> @@ -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; @@ -152,21 +77,6 @@ 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, ®); - if (reg && reg != ~0) - break; - msleep(1); - } - - if (i == REGISTER_BUSY_COUNT) { - ERROR(rt2x00dev, "Unstable hardware.\n"); - return -EBUSY; - } - - /* * Write firmware to device. */ rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE, @@ -203,28 +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, ®); - 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; } @@ -593,6 +481,7 @@ static const struct rt2800_ops rt2800usb_rt2800_ops = { .regbusy_read = rt2x00usb_regbusy_read, + .drv_write_firmware = rt2800usb_write_firmware, .drv_init_registers = rt2800usb_init_registers, }; @@ -670,8 +559,8 @@ static const struct ieee80211_ops rt2800usb_mac80211_ops = { 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, |