diff options
Diffstat (limited to 'drivers/net/wireless/libertas/cmd.c')
| -rw-r--r-- | drivers/net/wireless/libertas/cmd.c | 1725 |
1 files changed, 0 insertions, 1725 deletions
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c deleted file mode 100644 index 0387a5b38..000000000 --- a/drivers/net/wireless/libertas/cmd.c +++ /dev/null @@ -1,1725 +0,0 @@ -/* - * This file contains the handling of command. - * It prepares command and sends it to firmware when it is ready. - */ - -#include <linux/hardirq.h> -#include <linux/kfifo.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/if_arp.h> -#include <linux/export.h> - -#include "decl.h" -#include "cfg.h" -#include "cmd.h" - -#define CAL_NF(nf) ((s32)(-(s32)(nf))) -#define CAL_RSSI(snr, nf) ((s32)((s32)(snr) + CAL_NF(nf))) - -/** - * lbs_cmd_copyback - Simple callback that copies response back into command - * - * @priv: A pointer to &struct lbs_private structure - * @extra: A pointer to the original command structure for which - * 'resp' is a response - * @resp: A pointer to the command response - * - * returns: 0 on success, error on failure - */ -int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra, - struct cmd_header *resp) -{ - struct cmd_header *buf = (void *)extra; - uint16_t copy_len; - - copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size)); - memcpy(buf, resp, copy_len); - return 0; -} -EXPORT_SYMBOL_GPL(lbs_cmd_copyback); - -/** - * lbs_cmd_async_callback - Simple callback that ignores the result. - * Use this if you just want to send a command to the hardware, but don't - * care for the result. - * - * @priv: ignored - * @extra: ignored - * @resp: ignored - * - * returns: 0 for success - */ -static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra, - struct cmd_header *resp) -{ - return 0; -} - - -/** - * is_command_allowed_in_ps - tests if a command is allowed in Power Save mode - * - * @cmd: the command ID - * - * returns: 1 if allowed, 0 if not allowed - */ -static u8 is_command_allowed_in_ps(u16 cmd) -{ - switch (cmd) { - case CMD_802_11_RSSI: - return 1; - case CMD_802_11_HOST_SLEEP_CFG: - return 1; - default: - break; - } - return 0; -} - -/** - * lbs_update_hw_spec - Updates the hardware details like MAC address - * and regulatory region - * - * @priv: A pointer to &struct lbs_private structure - * - * returns: 0 on success, error on failure - */ -int lbs_update_hw_spec(struct lbs_private *priv) -{ - struct cmd_ds_get_hw_spec cmd; - int ret = -1; - u32 i; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN); - ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd); - if (ret) - goto out; - - priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo); - - /* The firmware release is in an interesting format: the patch - * level is in the most significant nibble ... so fix that: */ - priv->fwrelease = le32_to_cpu(cmd.fwrelease); - priv->fwrelease = (priv->fwrelease << 8) | - (priv->fwrelease >> 24 & 0xff); - - /* Some firmware capabilities: - * CF card firmware 5.0.16p0: cap 0x00000303 - * USB dongle firmware 5.110.17p2: cap 0x00000303 - */ - netdev_info(priv->dev, "%pM, fw %u.%u.%up%u, cap 0x%08x\n", - cmd.permanentaddr, - priv->fwrelease >> 24 & 0xff, - priv->fwrelease >> 16 & 0xff, - priv->fwrelease >> 8 & 0xff, - priv->fwrelease & 0xff, - priv->fwcapinfo); - lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n", - cmd.hwifversion, cmd.version); - - /* Clamp region code to 8-bit since FW spec indicates that it should - * only ever be 8-bit, even though the field size is 16-bit. Some firmware - * returns non-zero high 8 bits here. - * - * Firmware version 4.0.102 used in CF8381 has region code shifted. We - * need to check for this problem and handle it properly. - */ - if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V4) - priv->regioncode = (le16_to_cpu(cmd.regioncode) >> 8) & 0xFF; - else - priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF; - - for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) { - /* use the region code to search for the index */ - if (priv->regioncode == lbs_region_code_to_index[i]) - break; - } - - /* if it's unidentified region code, use the default (USA) */ - if (i >= MRVDRV_MAX_REGION_CODE) { - priv->regioncode = 0x10; - netdev_info(priv->dev, - "unidentified region code; using the default (USA)\n"); - } - - if (priv->current_addr[0] == 0xff) - memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN); - - if (!priv->copied_hwaddr) { - memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN); - if (priv->mesh_dev) - memcpy(priv->mesh_dev->dev_addr, - priv->current_addr, ETH_ALEN); - priv->copied_hwaddr = 1; - } - -out: - lbs_deb_leave(LBS_DEB_CMD); - return ret; -} - -static int lbs_ret_host_sleep_cfg(struct lbs_private *priv, unsigned long dummy, - struct cmd_header *resp) -{ - lbs_deb_enter(LBS_DEB_CMD); - if (priv->is_host_sleep_activated) { - priv->is_host_sleep_configured = 0; - if (priv->psstate == PS_STATE_FULL_POWER) { - priv->is_host_sleep_activated = 0; - wake_up_interruptible(&priv->host_sleep_q); - } - } else { - priv->is_host_sleep_configured = 1; - } - lbs_deb_leave(LBS_DEB_CMD); - return 0; -} - -int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria, - struct wol_config *p_wol_config) -{ - struct cmd_ds_host_sleep cmd_config; - int ret; - - /* - * Certain firmware versions do not support EHS_REMOVE_WAKEUP command - * and the card will return a failure. Since we need to be - * able to reset the mask, in those cases we set a 0 mask instead. - */ - if (criteria == EHS_REMOVE_WAKEUP && !priv->ehs_remove_supported) - criteria = 0; - - cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config)); - cmd_config.criteria = cpu_to_le32(criteria); - cmd_config.gpio = priv->wol_gpio; - cmd_config.gap = priv->wol_gap; - - if (p_wol_config != NULL) - memcpy((uint8_t *)&cmd_config.wol_conf, (uint8_t *)p_wol_config, - sizeof(struct wol_config)); - else - cmd_config.wol_conf.action = CMD_ACT_ACTION_NONE; - - ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config.hdr, - le16_to_cpu(cmd_config.hdr.size), - lbs_ret_host_sleep_cfg, 0); - if (!ret) { - if (p_wol_config) - memcpy((uint8_t *) p_wol_config, - (uint8_t *)&cmd_config.wol_conf, - sizeof(struct wol_config)); - } else { - netdev_info(priv->dev, "HOST_SLEEP_CFG failed %d\n", ret); - } - - return ret; -} -EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg); - -/** - * lbs_set_ps_mode - Sets the Power Save mode - * - * @priv: A pointer to &struct lbs_private structure - * @cmd_action: The Power Save operation (PS_MODE_ACTION_ENTER_PS or - * PS_MODE_ACTION_EXIT_PS) - * @block: Whether to block on a response or not - * - * returns: 0 on success, error on failure - */ -int lbs_set_ps_mode(struct lbs_private *priv, u16 cmd_action, bool block) -{ - struct cmd_ds_802_11_ps_mode cmd; - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(cmd_action); - - if (cmd_action == PS_MODE_ACTION_ENTER_PS) { - lbs_deb_cmd("PS_MODE: action ENTER_PS\n"); - cmd.multipledtim = cpu_to_le16(1); /* Default DTIM multiple */ - } else if (cmd_action == PS_MODE_ACTION_EXIT_PS) { - lbs_deb_cmd("PS_MODE: action EXIT_PS\n"); - } else { - /* We don't handle CONFIRM_SLEEP here because it needs to - * be fastpathed to the firmware. - */ - lbs_deb_cmd("PS_MODE: unknown action 0x%X\n", cmd_action); - ret = -EOPNOTSUPP; - goto out; - } - - if (block) - ret = lbs_cmd_with_response(priv, CMD_802_11_PS_MODE, &cmd); - else - lbs_cmd_async(priv, CMD_802_11_PS_MODE, &cmd.hdr, sizeof (cmd)); - -out: - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action, - struct sleep_params *sp) -{ - struct cmd_ds_802_11_sleep_params cmd; - int ret; - - lbs_deb_enter(LBS_DEB_CMD); - - if (cmd_action == CMD_ACT_GET) { - memset(&cmd, 0, sizeof(cmd)); - } else { - cmd.error = cpu_to_le16(sp->sp_error); - cmd.offset = cpu_to_le16(sp->sp_offset); - cmd.stabletime = cpu_to_le16(sp->sp_stabletime); - cmd.calcontrol = sp->sp_calcontrol; - cmd.externalsleepclk = sp->sp_extsleepclk; - cmd.reserved = cpu_to_le16(sp->sp_reserved); - } - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(cmd_action); - - ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd); - - if (!ret) { - lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, " - "calcontrol 0x%x extsleepclk 0x%x\n", - le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset), - le16_to_cpu(cmd.stabletime), cmd.calcontrol, - cmd.externalsleepclk); - - sp->sp_error = le16_to_cpu(cmd.error); - sp->sp_offset = le16_to_cpu(cmd.offset); - sp->sp_stabletime = le16_to_cpu(cmd.stabletime); - sp->sp_calcontrol = cmd.calcontrol; - sp->sp_extsleepclk = cmd.externalsleepclk; - sp->sp_reserved = le16_to_cpu(cmd.reserved); - } - - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return 0; -} - -static int lbs_wait_for_ds_awake(struct lbs_private *priv) -{ - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - if (priv->is_deep_sleep) { - if (!wait_event_interruptible_timeout(priv->ds_awake_q, - !priv->is_deep_sleep, (10 * HZ))) { - netdev_err(priv->dev, "ds_awake_q: timer expired\n"); - ret = -1; - } - } - - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep) -{ - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - if (deep_sleep) { - if (priv->is_deep_sleep != 1) { - lbs_deb_cmd("deep sleep: sleep\n"); - BUG_ON(!priv->enter_deep_sleep); - ret = priv->enter_deep_sleep(priv); - if (!ret) { - netif_stop_queue(priv->dev); - netif_carrier_off(priv->dev); - } - } else { - netdev_err(priv->dev, "deep sleep: already enabled\n"); - } - } else { - if (priv->is_deep_sleep) { - lbs_deb_cmd("deep sleep: wakeup\n"); - BUG_ON(!priv->exit_deep_sleep); - ret = priv->exit_deep_sleep(priv); - if (!ret) { - ret = lbs_wait_for_ds_awake(priv); - if (ret) - netdev_err(priv->dev, - "deep sleep: wakeup failed\n"); - } - } - } - - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -static int lbs_ret_host_sleep_activate(struct lbs_private *priv, - unsigned long dummy, - struct cmd_header *cmd) -{ - lbs_deb_enter(LBS_DEB_FW); - priv->is_host_sleep_activated = 1; - wake_up_interruptible(&priv->host_sleep_q); - lbs_deb_leave(LBS_DEB_FW); - return 0; -} - -int lbs_set_host_sleep(struct lbs_private *priv, int host_sleep) -{ - struct cmd_header cmd; - int ret = 0; - uint32_t criteria = EHS_REMOVE_WAKEUP; - - lbs_deb_enter(LBS_DEB_CMD); - - if (host_sleep) { - if (priv->is_host_sleep_activated != 1) { - memset(&cmd, 0, sizeof(cmd)); - ret = lbs_host_sleep_cfg(priv, priv->wol_criteria, - (struct wol_config *)NULL); - if (ret) { - netdev_info(priv->dev, - "Host sleep configuration failed: %d\n", - ret); - return ret; - } - if (priv->psstate == PS_STATE_FULL_POWER) { - ret = __lbs_cmd(priv, - CMD_802_11_HOST_SLEEP_ACTIVATE, - &cmd, - sizeof(cmd), - lbs_ret_host_sleep_activate, 0); - if (ret) - netdev_info(priv->dev, - "HOST_SLEEP_ACTIVATE failed: %d\n", - ret); - } - - if (!wait_event_interruptible_timeout( - priv->host_sleep_q, - priv->is_host_sleep_activated, - (10 * HZ))) { - netdev_err(priv->dev, - "host_sleep_q: timer expired\n"); - ret = -1; - } - } else { - netdev_err(priv->dev, "host sleep: already enabled\n"); - } - } else { - if (priv->is_host_sleep_activated) - ret = lbs_host_sleep_cfg(priv, criteria, - (struct wol_config *)NULL); - } - - return ret; -} - -/** - * lbs_set_snmp_mib - Set an SNMP MIB value - * - * @priv: A pointer to &struct lbs_private structure - * @oid: The OID to set in the firmware - * @val: Value to set the OID to - * - * returns: 0 on success, error on failure - */ -int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val) -{ - struct cmd_ds_802_11_snmp_mib cmd; - int ret; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof (cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - cmd.oid = cpu_to_le16((u16) oid); - - switch (oid) { - case SNMP_MIB_OID_BSS_TYPE: - cmd.bufsize = cpu_to_le16(sizeof(u8)); - cmd.value[0] = val; - break; - case SNMP_MIB_OID_11D_ENABLE: - case SNMP_MIB_OID_FRAG_THRESHOLD: - case SNMP_MIB_OID_RTS_THRESHOLD: - case SNMP_MIB_OID_SHORT_RETRY_LIMIT: - case SNMP_MIB_OID_LONG_RETRY_LIMIT: - cmd.bufsize = cpu_to_le16(sizeof(u16)); - *((__le16 *)(&cmd.value)) = cpu_to_le16(val); - break; - default: - lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid); - ret = -EINVAL; - goto out; - } - - lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n", - le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val); - - ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd); - -out: - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -/** - * lbs_get_snmp_mib - Get an SNMP MIB value - * - * @priv: A pointer to &struct lbs_private structure - * @oid: The OID to retrieve from the firmware - * @out_val: Location for the returned value - * - * returns: 0 on success, error on failure - */ -int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val) -{ - struct cmd_ds_802_11_snmp_mib cmd; - int ret; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof (cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_GET); - cmd.oid = cpu_to_le16(oid); - - ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd); - if (ret) - goto out; - - switch (le16_to_cpu(cmd.bufsize)) { - case sizeof(u8): - *out_val = cmd.value[0]; - break; - case sizeof(u16): - *out_val = le16_to_cpu(*((__le16 *)(&cmd.value))); - break; - default: - lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n", - oid, le16_to_cpu(cmd.bufsize)); - break; - } - -out: - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -/** - * lbs_get_tx_power - Get the min, max, and current TX power - * - * @priv: A pointer to &struct lbs_private structure - * @curlevel: Current power level in dBm - * @minlevel: Minimum supported power level in dBm (optional) - * @maxlevel: Maximum supported power level in dBm (optional) - * - * returns: 0 on success, error on failure - */ -int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel, - s16 *maxlevel) -{ - struct cmd_ds_802_11_rf_tx_power cmd; - int ret; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_GET); - - ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd); - if (ret == 0) { - *curlevel = le16_to_cpu(cmd.curlevel); - if (minlevel) - *minlevel = cmd.minlevel; - if (maxlevel) - *maxlevel = cmd.maxlevel; - } - - lbs_deb_leave(LBS_DEB_CMD); - return ret; -} - -/** - * lbs_set_tx_power - Set the TX power - * - * @priv: A pointer to &struct lbs_private structure - * @dbm: The desired power level in dBm - * - * returns: 0 on success, error on failure - */ -int lbs_set_tx_power(struct lbs_private *priv, s16 dbm) -{ - struct cmd_ds_802_11_rf_tx_power cmd; - int ret; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - cmd.curlevel = cpu_to_le16(dbm); - - lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm); - - ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd); - - lbs_deb_leave(LBS_DEB_CMD); - return ret; -} - -/** - * lbs_set_monitor_mode - Enable or disable monitor mode - * (only implemented on OLPC usb8388 FW) - * - * @priv: A pointer to &struct lbs_private structure - * @enable: 1 to enable monitor mode, 0 to disable - * - * returns: 0 on success, error on failure - */ -int lbs_set_monitor_mode(struct lbs_private *priv, int enable) -{ - struct cmd_ds_802_11_monitor_mode cmd; - int ret; - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - if (enable) - cmd.mode = cpu_to_le16(0x1); - - lbs_deb_cmd("SET_MONITOR_MODE: %d\n", enable); - - ret = lbs_cmd_with_response(priv, CMD_802_11_MONITOR_MODE, &cmd); - if (ret == 0) { - priv->dev->type = enable ? ARPHRD_IEEE80211_RADIOTAP : - ARPHRD_ETHER; - } - - lbs_deb_leave(LBS_DEB_CMD); - return ret; -} - -/** - * lbs_get_channel - Get the radio channel - * - * @priv: A pointer to &struct lbs_private structure - * - * returns: The channel on success, error on failure - */ -static int lbs_get_channel(struct lbs_private *priv) -{ - struct cmd_ds_802_11_rf_channel cmd; - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET); - - ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd); - if (ret) - goto out; - - ret = le16_to_cpu(cmd.channel); - lbs_deb_cmd("current radio channel is %d\n", ret); - -out: - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -int lbs_update_channel(struct lbs_private *priv) -{ - int ret; - - /* the channel in f/w could be out of sync; get the current channel */ - lbs_deb_enter(LBS_DEB_ASSOC); - - ret = lbs_get_channel(priv); - if (ret > 0) { - priv->channel = ret; - ret = 0; - } - lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); - return ret; -} - -/** - * lbs_set_channel - Set the radio channel - * - * @priv: A pointer to &struct lbs_private structure - * @channel: The desired channel, or 0 to clear a locked channel - * - * returns: 0 on success, error on failure - */ -int lbs_set_channel(struct lbs_private *priv, u8 channel) -{ - struct cmd_ds_802_11_rf_channel cmd; -#ifdef DEBUG - u8 old_channel = priv->channel; -#endif - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET); - cmd.channel = cpu_to_le16(channel); - - ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd); - if (ret) - goto out; - - priv->channel = (uint8_t) le16_to_cpu(cmd.channel); - lbs_deb_cmd("channel switch from %d to %d\n", old_channel, - priv->channel); - -out: - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -/** - * lbs_get_rssi - Get current RSSI and noise floor - * - * @priv: A pointer to &struct lbs_private structure - * @rssi: On successful return, signal level in mBm - * @nf: On successful return, Noise floor - * - * returns: The channel on success, error on failure - */ -int lbs_get_rssi(struct lbs_private *priv, s8 *rssi, s8 *nf) -{ - struct cmd_ds_802_11_rssi cmd; - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - BUG_ON(rssi == NULL); - BUG_ON(nf == NULL); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - /* Average SNR over last 8 beacons */ - cmd.n_or_snr = cpu_to_le16(8); - - ret = lbs_cmd_with_response(priv, CMD_802_11_RSSI, &cmd); - if (ret == 0) { - *nf = CAL_NF(le16_to_cpu(cmd.nf)); - *rssi = CAL_RSSI(le16_to_cpu(cmd.n_or_snr), le16_to_cpu(cmd.nf)); - } - - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -/** - * lbs_set_11d_domain_info - Send regulatory and 802.11d domain information - * to the firmware - * - * @priv: pointer to &struct lbs_private - * - * returns: 0 on success, error code on failure -*/ -int lbs_set_11d_domain_info(struct lbs_private *priv) -{ - struct wiphy *wiphy = priv->wdev->wiphy; - struct ieee80211_supported_band **bands = wiphy->bands; - struct cmd_ds_802_11d_domain_info cmd; - struct mrvl_ie_domain_param_set *domain = &cmd.domain; - struct ieee80211_country_ie_triplet *t; - enum ieee80211_band band; - struct ieee80211_channel *ch; - u8 num_triplet = 0; - u8 num_parsed_chan = 0; - u8 first_channel = 0, next_chan = 0, max_pwr = 0; - u8 i, flag = 0; - size_t triplet_size; - int ret = 0; - - lbs_deb_enter(LBS_DEB_11D); - if (!priv->country_code[0]) - goto out; - - memset(&cmd, 0, sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - - lbs_deb_11d("Setting country code '%c%c'\n", - priv->country_code[0], priv->country_code[1]); - - domain->header.type = cpu_to_le16(TLV_TYPE_DOMAIN); - - /* Set country code */ - domain->country_code[0] = priv->country_code[0]; - domain->country_code[1] = priv->country_code[1]; - domain->country_code[2] = ' '; - - /* Now set up the channel triplets; firmware is somewhat picky here - * and doesn't validate channel numbers and spans; hence it would - * interpret a triplet of (36, 4, 20) as channels 36, 37, 38, 39. Since - * the last 3 aren't valid channels, the driver is responsible for - * splitting that up into 4 triplet pairs of (36, 1, 20) + (40, 1, 20) - * etc. - */ - for (band = 0; - (band < IEEE80211_NUM_BANDS) && (num_triplet < MAX_11D_TRIPLETS); - band++) { - - if (!bands[band]) - continue; - - for (i = 0; - (i < bands[band]->n_channels) && (num_triplet < MAX_11D_TRIPLETS); - i++) { - ch = &bands[band]->channels[i]; - if (ch->flags & IEEE80211_CHAN_DISABLED) - continue; - - if (!flag) { - flag = 1; - next_chan = first_channel = (u32) ch->hw_value; - max_pwr = ch->max_power; - num_parsed_chan = 1; - continue; - } - - if ((ch->hw_value == next_chan + 1) && - (ch->max_power == max_pwr)) { - /* Consolidate adjacent channels */ - next_chan++; - num_parsed_chan++; - } else { - /* Add this triplet */ - lbs_deb_11d("11D triplet (%d, %d, %d)\n", - first_channel, num_parsed_chan, - max_pwr); - t = &domain->triplet[num_triplet]; - t->chans.first_channel = first_channel; - t->chans.num_channels = num_parsed_chan; - t->chans.max_power = max_pwr; - num_triplet++; - flag = 0; - } - } - - if (flag) { - /* Add last triplet */ - lbs_deb_11d("11D triplet (%d, %d, %d)\n", first_channel, - num_parsed_chan, max_pwr); - t = &domain->triplet[num_triplet]; - t->chans.first_channel = first_channel; - t->chans.num_channels = num_parsed_chan; - t->chans.max_power = max_pwr; - num_triplet++; - } - } - - lbs_deb_11d("# triplets %d\n", num_triplet); - - /* Set command header sizes */ - triplet_size = num_triplet * sizeof(struct ieee80211_country_ie_triplet); - domain->header.len = cpu_to_le16(sizeof(domain->country_code) + - triplet_size); - - lbs_deb_hex(LBS_DEB_11D, "802.11D domain param set", - (u8 *) &cmd.domain.country_code, - le16_to_cpu(domain->header.len)); - - cmd.hdr.size = cpu_to_le16(sizeof(cmd.hdr) + - sizeof(cmd.action) + - sizeof(cmd.domain.header) + - sizeof(cmd.domain.country_code) + - triplet_size); - - ret = lbs_cmd_with_response(priv, CMD_802_11D_DOMAIN_INFO, &cmd); - -out: - lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret); - return ret; -} - -/** - * lbs_get_reg - Read a MAC, Baseband, or RF register - * - * @priv: pointer to &struct lbs_private - * @reg: register command, one of CMD_MAC_REG_ACCESS, - * CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS - * @offset: byte offset of the register to get - * @value: on success, the value of the register at 'offset' - * - * returns: 0 on success, error code on failure -*/ -int lbs_get_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 *value) -{ - struct cmd_ds_reg_access cmd; - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - BUG_ON(value == NULL); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_GET); - cmd.offset = cpu_to_le16(offset); - - if (reg != CMD_MAC_REG_ACCESS && - reg != CMD_BBP_REG_ACCESS && - reg != CMD_RF_REG_ACCESS) { - ret = -EINVAL; - goto out; - } - - ret = lbs_cmd_with_response(priv, reg, &cmd); - if (!ret) { - if (reg == CMD_BBP_REG_ACCESS || reg == CMD_RF_REG_ACCESS) - *value = cmd.value.bbp_rf; - else if (reg == CMD_MAC_REG_ACCESS) - *value = le32_to_cpu(cmd.value.mac); - } - -out: - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -/** - * lbs_set_reg - Write a MAC, Baseband, or RF register - * - * @priv: pointer to &struct lbs_private - * @reg: register command, one of CMD_MAC_REG_ACCESS, - * CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS - * @offset: byte offset of the register to set - * @value: the value to write to the register at 'offset' - * - * returns: 0 on success, error code on failure -*/ -int lbs_set_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 value) -{ - struct cmd_ds_reg_access cmd; - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - cmd.offset = cpu_to_le16(offset); - - if (reg == CMD_BBP_REG_ACCESS || reg == CMD_RF_REG_ACCESS) - cmd.value.bbp_rf = (u8) (value & 0xFF); - else if (reg == CMD_MAC_REG_ACCESS) - cmd.value.mac = cpu_to_le32(value); - else { - ret = -EINVAL; - goto out; - } - - ret = lbs_cmd_with_response(priv, reg, &cmd); - -out: - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -static void lbs_queue_cmd(struct lbs_private *priv, - struct cmd_ctrl_node *cmdnode) -{ - unsigned long flags; - int addtail = 1; - - lbs_deb_enter(LBS_DEB_HOST); - - if (!cmdnode) { - lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n"); - goto done; - } - if (!cmdnode->cmdbuf->size) { - lbs_deb_host("DNLD_CMD: cmd size is zero\n"); - goto done; - } - cmdnode->result = 0; - - /* Exit_PS command needs to be queued in the header always. */ - if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) { - struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf; - - if (psm->action == cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) { - if (priv->psstate != PS_STATE_FULL_POWER) - addtail = 0; - } - } - - if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_WAKEUP_CONFIRM) - addtail = 0; - - spin_lock_irqsave(&priv->driver_lock, flags); - - if (addtail) - list_add_tail(&cmdnode->list, &priv->cmdpendingq); - else - list_add(&cmdnode->list, &priv->cmdpendingq); - - spin_unlock_irqrestore(&priv->driver_lock, flags); - - lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n", - le16_to_cpu(cmdnode->cmdbuf->command)); - -done: - lbs_deb_leave(LBS_DEB_HOST); -} - -static void lbs_submit_command(struct lbs_private *priv, - struct cmd_ctrl_node *cmdnode) -{ - unsigned long flags; - struct cmd_header *cmd; - uint16_t cmdsize; - uint16_t command; - int timeo = 3 * HZ; - int ret; - - lbs_deb_enter(LBS_DEB_HOST); - - cmd = cmdnode->cmdbuf; - - spin_lock_irqsave(&priv->driver_lock, flags); - priv->seqnum++; - cmd->seqnum = cpu_to_le16(priv->seqnum); - priv->cur_cmd = cmdnode; - spin_unlock_irqrestore(&priv->driver_lock, flags); - - cmdsize = le16_to_cpu(cmd->size); - command = le16_to_cpu(cmd->command); - - /* These commands take longer */ - if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE) - timeo = 5 * HZ; - - lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n", - command, le16_to_cpu(cmd->seqnum), cmdsize); - lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize); - - ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize); - - if (ret) { - netdev_info(priv->dev, "DNLD_CMD: hw_host_to_card failed: %d\n", - ret); - /* Reset dnld state machine, report failure */ - priv->dnld_sent = DNLD_RES_RECEIVED; - lbs_complete_command(priv, cmdnode, ret); - } - - if (command == CMD_802_11_DEEP_SLEEP) { - if (priv->is_auto_deep_sleep_enabled) { - priv->wakeup_dev_required = 1; - priv->dnld_sent = 0; - } - priv->is_deep_sleep = 1; - lbs_complete_command(priv, cmdnode, 0); - } else { - /* Setup the timer after transmit command */ - mod_timer(&priv->command_timer, jiffies + timeo); - } - - lbs_deb_leave(LBS_DEB_HOST); -} - -/* - * This function inserts command node to cmdfreeq - * after cleans it. Requires priv->driver_lock held. - */ -static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv, - struct cmd_ctrl_node *cmdnode) -{ - lbs_deb_enter(LBS_DEB_HOST); - - if (!cmdnode) - goto out; - - cmdnode->callback = NULL; - cmdnode->callback_arg = 0; - - memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE); - - list_add_tail(&cmdnode->list, &priv->cmdfreeq); - out: - lbs_deb_leave(LBS_DEB_HOST); -} - -static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv, - struct cmd_ctrl_node *ptempcmd) -{ - unsigned long flags; - - spin_lock_irqsave(&priv->driver_lock, flags); - __lbs_cleanup_and_insert_cmd(priv, ptempcmd); - spin_unlock_irqrestore(&priv->driver_lock, flags); -} - -void __lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd, - int result) -{ - /* - * Normally, commands are removed from cmdpendingq before being - * submitted. However, we can arrive here on alternative codepaths - * where the command is still pending. Make sure the command really - * isn't part of a list at this point. - */ - list_del_init(&cmd->list); - - cmd->result = result; - cmd->cmdwaitqwoken = 1; - wake_up(&cmd->cmdwait_q); - - if (!cmd->callback || cmd->callback == lbs_cmd_async_callback) - __lbs_cleanup_and_insert_cmd(priv, cmd); - priv->cur_cmd = NULL; - wake_up(&priv->waitq); -} - -void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd, - int result) -{ - unsigned long flags; - spin_lock_irqsave(&priv->driver_lock, flags); - __lbs_complete_command(priv, cmd, result); - spin_unlock_irqrestore(&priv->driver_lock, flags); -} - -int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on) -{ - struct cmd_ds_802_11_radio_control cmd; - int ret = -EINVAL; - - lbs_deb_enter(LBS_DEB_CMD); - - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - cmd.control = 0; - - /* Only v8 and below support setting the preamble */ - if (priv->fwrelease < 0x09000000) { - switch (preamble) { - case RADIO_PREAMBLE_SHORT: - case RADIO_PREAMBLE_AUTO: - case RADIO_PREAMBLE_LONG: - cmd.control = cpu_to_le16(preamble); - break; - default: - goto out; - } - } - - if (radio_on) - cmd.control |= cpu_to_le16(0x1); - else { - cmd.control &= cpu_to_le16(~0x1); - priv->txpower_cur = 0; - } - - lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n", - radio_on ? "ON" : "OFF", preamble); - - priv->radio_on = radio_on; - - ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd); - -out: - lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); - return ret; -} - -void lbs_set_mac_control(struct lbs_private *priv) -{ - struct cmd_ds_mac_control cmd; - - lbs_deb_enter(LBS_DEB_CMD); - - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(priv->mac_control); - cmd.reserved = 0; - - lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd)); - - lbs_deb_leave(LBS_DEB_CMD); -} - -int lbs_set_mac_control_sync(struct lbs_private *priv) -{ - struct cmd_ds_mac_control cmd; - int ret = 0; - - lbs_deb_enter(LBS_DEB_CMD); - - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(priv->mac_control); - cmd.reserved = 0; - ret = lbs_cmd_with_response(priv, CMD_MAC_CONTROL, &cmd); - - lbs_deb_leave(LBS_DEB_CMD); - return ret; -} - -/** - * lbs_allocate_cmd_buffer - allocates the command buffer and links - * it to command free queue - * - * @priv: A pointer to &struct lbs_private structure - * - * returns: 0 for success or -1 on error - */ -int lbs_allocate_cmd_buffer(struct lbs_private *priv) -{ - int ret = 0; - u32 bufsize; - u32 i; - struct cmd_ctrl_node *cmdarray; - - lbs_deb_enter(LBS_DEB_HOST); - - /* Allocate and initialize the command array */ - bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS; - if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) { - lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n"); - ret = -1; - goto done; - } - priv->cmd_array = cmdarray; - - /* Allocate and initialize each command buffer in the command array */ - for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { - cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL); - if (!cmdarray[i].cmdbuf) { - lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n"); - ret = -1; - goto done; - } - } - - for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { - init_waitqueue_head(&cmdarray[i].cmdwait_q); - lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]); - } - ret = 0; - -done: - lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret); - return ret; -} - -/** - * lbs_free_cmd_buffer - free the command buffer - * - * @priv: A pointer to &struct lbs_private structure - * - * returns: 0 for success - */ -int lbs_free_cmd_buffer(struct lbs_private *priv) -{ - struct cmd_ctrl_node *cmdarray; - unsigned int i; - - lbs_deb_enter(LBS_DEB_HOST); - - /* need to check if cmd array is allocated or not */ - if (priv->cmd_array == NULL) { - lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n"); - goto done; - } - - cmdarray = priv->cmd_array; - - /* Release shared memory buffers */ - for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { - if (cmdarray[i].cmdbuf) { - kfree(cmdarray[i].cmdbuf); - cmdarray[i].cmdbuf = NULL; - } - } - - /* Release cmd_ctrl_node */ - if (priv->cmd_array) { - kfree(priv->cmd_array); - priv->cmd_array = NULL; - } - -done: - lbs_deb_leave(LBS_DEB_HOST); - return 0; -} - -/** - * lbs_get_free_cmd_node - gets a free command node if available in - * command free queue - * - * @priv: A pointer to &struct lbs_private structure - * - * returns: A pointer to &cmd_ctrl_node structure on success - * or %NULL on error - */ -static struct cmd_ctrl_node *lbs_get_free_cmd_node(struct lbs_private *priv) -{ - struct cmd_ctrl_node *tempnode; - unsigned long flags; - - lbs_deb_enter(LBS_DEB_HOST); - - if (!priv) - return NULL; - - spin_lock_irqsave(&priv->driver_lock, flags); - - if (!list_empty(&priv->cmdfreeq)) { - tempnode = list_first_entry(&priv->cmdfreeq, - struct cmd_ctrl_node, list); - list_del_init(&tempnode->list); - } else { - lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n"); - tempnode = NULL; - } - - spin_unlock_irqrestore(&priv->driver_lock, flags); - - lbs_deb_leave(LBS_DEB_HOST); - return tempnode; -} - -/** - * lbs_execute_next_command - execute next command in command - * pending queue. Will put firmware back to PS mode if applicable. - * - * @priv: A pointer to &struct lbs_private structure - * - * returns: 0 on success or -1 on error - */ -int lbs_execute_next_command(struct lbs_private *priv) -{ - struct cmd_ctrl_node *cmdnode = NULL; - struct cmd_header *cmd; - unsigned long flags; - int ret = 0; - - /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the - * only caller to us is lbs_thread() and we get even when a - * data packet is received */ - lbs_deb_enter(LBS_DEB_THREAD); - - spin_lock_irqsave(&priv->driver_lock, flags); - - if (priv->cur_cmd) { - netdev_alert(priv->dev, - "EXEC_NEXT_CMD: already processing command!\n"); - spin_unlock_irqrestore(&priv->driver_lock, flags); - ret = -1; - goto done; - } - - if (!list_empty(&priv->cmdpendingq)) { - cmdnode = list_first_entry(&priv->cmdpendingq, - struct cmd_ctrl_node, list); - } - - spin_unlock_irqrestore(&priv->driver_lock, flags); - - if (cmdnode) { - cmd = cmdnode->cmdbuf; - - if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) { - if ((priv->psstate == PS_STATE_SLEEP) || - (priv->psstate == PS_STATE_PRE_SLEEP)) { - lbs_deb_host( - "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n", - le16_to_cpu(cmd->command), - priv->psstate); - ret = -1; - goto done; - } - lbs_deb_host("EXEC_NEXT_CMD: OK to send command " - "0x%04x in psstate %d\n", - le16_to_cpu(cmd->command), priv->psstate); - } else if (priv->psstate != PS_STATE_FULL_POWER) { - /* - * 1. Non-PS command: - * Queue it. set needtowakeup to TRUE if current state - * is SLEEP, otherwise call send EXIT_PS. - * 2. PS command but not EXIT_PS: - * Ignore it. - * 3. PS command EXIT_PS: - * Set needtowakeup to TRUE if current state is SLEEP, - * otherwise send this command down to firmware - * immediately. - */ - if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) { - /* Prepare to send Exit PS, - * this non PS command will be sent later */ - if ((priv->psstate == PS_STATE_SLEEP) - || (priv->psstate == PS_STATE_PRE_SLEEP) - ) { - /* w/ new scheme, it will not reach here. - since it is blocked in main_thread. */ - priv->needtowakeup = 1; - } else { - lbs_set_ps_mode(priv, - PS_MODE_ACTION_EXIT_PS, - false); - } - - ret = 0; - goto done; - } else { - /* - * PS command. Ignore it if it is not Exit_PS. - * otherwise send it down immediately. - */ - struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1]; - - lbs_deb_host( - "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n", - psm->action); - if (psm->action != - cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) { - lbs_deb_host( - "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n"); - lbs_complete_command(priv, cmdnode, 0); - - ret = 0; - goto done; - } - - if ((priv->psstate == PS_STATE_SLEEP) || - (priv->psstate == PS_STATE_PRE_SLEEP)) { - lbs_deb_host( - "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n"); - lbs_complete_command(priv, cmdnode, 0); - priv->needtowakeup = 1; - - ret = 0; - goto done; - } - - lbs_deb_host( - "EXEC_NEXT_CMD: sending EXIT_PS\n"); - } - } - spin_lock_irqsave(&priv->driver_lock, flags); - list_del_init(&cmdnode->list); - spin_unlock_irqrestore(&priv->driver_lock, flags); - lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n", - le16_to_cpu(cmd->command)); - lbs_submit_command(priv, cmdnode); - } else { - /* - * check if in power save mode, if yes, put the device back - * to PS mode - */ -#ifdef TODO - /* - * This was the old code for libertas+wext. Someone that - * understands this beast should re-code it in a sane way. - * - * I actually don't understand why this is related to WPA - * and to connection status, shouldn't powering should be - * independ of such things? - */ - if ((priv->psmode != LBS802_11POWERMODECAM) && - (priv->psstate == PS_STATE_FULL_POWER) && - ((priv->connect_status == LBS_CONNECTED) || - lbs_mesh_connected(priv))) { - if (priv->secinfo.WPAenabled || - priv->secinfo.WPA2enabled) { - /* check for valid WPA group keys */ - if (priv->wpa_mcast_key.len || - priv->wpa_unicast_key.len) { - lbs_deb_host( - "EXEC_NEXT_CMD: WPA enabled and GTK_SET" - " go back to PS_SLEEP"); - lbs_set_ps_mode(priv, - PS_MODE_ACTION_ENTER_PS, - false); - } - } else { - lbs_deb_host( - "EXEC_NEXT_CMD: cmdpendingq empty, " - "go back to PS_SLEEP"); - lbs_set_ps_mode(priv, PS_MODE_ACTION_ENTER_PS, - false); - } - } -#endif - } - - ret = 0; -done: - lbs_deb_leave(LBS_DEB_THREAD); - return ret; -} - -static void lbs_send_confirmsleep(struct lbs_private *priv) -{ - unsigned long flags; - int ret; - - lbs_deb_enter(LBS_DEB_HOST); - lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep, - sizeof(confirm_sleep)); - - ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep, - sizeof(confirm_sleep)); - if (ret) { - netdev_alert(priv->dev, "confirm_sleep failed\n"); - goto out; - } - - spin_lock_irqsave(&priv->driver_lock, flags); - - /* We don't get a response on the sleep-confirmation */ - priv->dnld_sent = DNLD_RES_RECEIVED; - - if (priv->is_host_sleep_configured) { - priv->is_host_sleep_activated = 1; - wake_up_interruptible(&priv->host_sleep_q); - } - - /* If nothing to do, go back to sleep (?) */ - if (!kfifo_len(&priv->event_fifo) && !priv->resp_len[priv->resp_idx]) - priv->psstate = PS_STATE_SLEEP; - - spin_unlock_irqrestore(&priv->driver_lock, flags); - -out: - lbs_deb_leave(LBS_DEB_HOST); -} - -/** - * lbs_ps_confirm_sleep - checks condition and prepares to - * send sleep confirm command to firmware if ok - * - * @priv: A pointer to &struct lbs_private structure - * - * returns: n/a - */ -void lbs_ps_confirm_sleep(struct lbs_private *priv) -{ - unsigned long flags =0; - int allowed = 1; - - lbs_deb_enter(LBS_DEB_HOST); - - spin_lock_irqsave(&priv->driver_lock, flags); - if (priv->dnld_sent) { - allowed = 0; - lbs_deb_host("dnld_sent was set\n"); - } - - /* In-progress command? */ - if (priv->cur_cmd) { - allowed = 0; - lbs_deb_host("cur_cmd was set\n"); - } - - /* Pending events or command responses? */ - if (kfifo_len(&priv->event_fifo) || priv->resp_len[priv->resp_idx]) { - allowed = 0; - lbs_deb_host("pending events or command responses\n"); - } - spin_unlock_irqrestore(&priv->driver_lock, flags); - - if (allowed) { - lbs_deb_host("sending lbs_ps_confirm_sleep\n"); - lbs_send_confirmsleep(priv); - } else { - lbs_deb_host("sleep confirm has been delayed\n"); - } - - lbs_deb_leave(LBS_DEB_HOST); -} - - -/** - * lbs_set_tpc_cfg - Configures the transmission power control functionality - * - * @priv: A pointer to &struct lbs_private structure - * @enable: Transmission power control enable - * @p0: Power level when link quality is good (dBm). - * @p1: Power level when link quality is fair (dBm). - * @p2: Power level when link quality is poor (dBm). - * @usesnr: Use Signal to Noise Ratio in TPC - * - * returns: 0 on success - */ -int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1, - int8_t p2, int usesnr) -{ - struct cmd_ds_802_11_tpc_cfg cmd; - int ret; - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - cmd.enable = !!enable; - cmd.usesnr = !!usesnr; - cmd.P0 = p0; - cmd.P1 = p1; - cmd.P2 = p2; - - ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd); - - return ret; -} - -/** - * lbs_set_power_adapt_cfg - Configures the power adaptation settings - * - * @priv: A pointer to &struct lbs_private structure - * @enable: Power adaptation enable - * @p0: Power level for 1, 2, 5.5 and 11 Mbps (dBm). - * @p1: Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm). - * @p2: Power level for 48 and 54 Mbps (dBm). - * - * returns: 0 on Success - */ - -int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0, - int8_t p1, int8_t p2) -{ - struct cmd_ds_802_11_pa_cfg cmd; - int ret; - - memset(&cmd, 0, sizeof(cmd)); - cmd.hdr.size = cpu_to_le16(sizeof(cmd)); - cmd.action = cpu_to_le16(CMD_ACT_SET); - cmd.enable = !!enable; - cmd.P0 = p0; - cmd.P1 = p1; - cmd.P2 = p2; - - ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd); - - return ret; -} - - -struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv, - uint16_t command, struct cmd_header *in_cmd, int in_cmd_size, - int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *), - unsigned long callback_arg) -{ - struct cmd_ctrl_node *cmdnode; - - lbs_deb_enter(LBS_DEB_HOST); - - if (priv->surpriseremoved) { - lbs_deb_host("PREP_CMD: card removed\n"); - cmdnode = ERR_PTR(-ENOENT); - goto done; - } - - /* No commands are allowed in Deep Sleep until we toggle the GPIO - * to wake up the card and it has signaled that it's ready. - */ - if (!priv->is_auto_deep_sleep_enabled) { - if (priv->is_deep_sleep) { - lbs_deb_cmd("command not allowed in deep sleep\n"); - cmdnode = ERR_PTR(-EBUSY); - goto done; - } - } - - cmdnode = lbs_get_free_cmd_node(priv); - if (cmdnode == NULL) { - lbs_deb_host("PREP_CMD: cmdnode is NULL\n"); - - /* Wake up main thread to execute next command */ - wake_up(&priv->waitq); - cmdnode = ERR_PTR(-ENOBUFS); - goto done; - } - - cmdnode->callback = callback; - cmdnode->callback_arg = callback_arg; - - /* Copy the incoming command to the buffer */ - memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size); - - /* Set command, clean result, move to buffer */ - cmdnode->cmdbuf->command = cpu_to_le16(command); - cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size); - cmdnode->cmdbuf->result = 0; - - lbs_deb_host("PREP_CMD: command 0x%04x\n", command); - - cmdnode->cmdwaitqwoken = 0; - lbs_queue_cmd(priv, cmdnode); - wake_up(&priv->waitq); - - done: - lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode); - return cmdnode; -} - -void lbs_cmd_async(struct lbs_private *priv, uint16_t command, - struct cmd_header *in_cmd, int in_cmd_size) -{ - lbs_deb_enter(LBS_DEB_CMD); - __lbs_cmd_async(priv, command, in_cmd, in_cmd_size, - lbs_cmd_async_callback, 0); - lbs_deb_leave(LBS_DEB_CMD); -} - -int __lbs_cmd(struct lbs_private *priv, uint16_t command, - struct cmd_header *in_cmd, int in_cmd_size, - int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *), - unsigned long callback_arg) -{ - struct cmd_ctrl_node *cmdnode; - unsigned long flags; - int ret = 0; - - lbs_deb_enter(LBS_DEB_HOST); - - cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size, - callback, callback_arg); - if (IS_ERR(cmdnode)) { - ret = PTR_ERR(cmdnode); - goto done; - } - - might_sleep(); - - /* - * Be careful with signals here. A signal may be received as the system - * goes into suspend or resume. We do not want this to interrupt the - * command, so we perform an uninterruptible sleep. - */ - wait_event(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken); - - spin_lock_irqsave(&priv->driver_lock, flags); - ret = cmdnode->result; - if (ret) - netdev_info(priv->dev, "PREP_CMD: command 0x%04x failed: %d\n", - command, ret); - - __lbs_cleanup_and_insert_cmd(priv, cmdnode); - spin_unlock_irqrestore(&priv->driver_lock, flags); - -done: - lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret); - return ret; -} -EXPORT_SYMBOL_GPL(__lbs_cmd); |