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path: root/drivers/net/wireless/libertas/cmd.c
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Diffstat (limited to 'drivers/net/wireless/libertas/cmd.c')
-rw-r--r--drivers/net/wireless/libertas/cmd.c1725
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);