From 5844d12ea30bacae9224db6561a16e86ad31c6e5 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 18 Dec 2007 02:01:37 -0500 Subject: [PATCH] libertas: convert SUBSCRIBE_EVENT to a direct command Signed-off-by: David Woodhouse Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/cmd.c | 52 +---- drivers/net/wireless/libertas/cmdresp.c | 22 -- drivers/net/wireless/libertas/debugfs.c | 282 +++++++++++------------- drivers/net/wireless/libertas/hostcmd.h | 5 +- 4 files changed, 135 insertions(+), 226 deletions(-) diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c index 5d2c928fdd..4d06dec6cd 100644 --- a/drivers/net/wireless/libertas/cmd.c +++ b/drivers/net/wireless/libertas/cmd.c @@ -327,53 +327,6 @@ int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action, return ret; } - -static ssize_t lbs_tlv_size(const u8 *tlv, u16 size) -{ - ssize_t pos = 0; - struct mrvlietypesheader *tlv_h; - while (pos < size) { - u16 length; - tlv_h = (struct mrvlietypesheader *) tlv; - if (tlv_h->len == 0) - return pos; - length = le16_to_cpu(tlv_h->len) + - sizeof(struct mrvlietypesheader); - pos += length; - tlv += length; - } - return pos; -} - - -static void lbs_cmd_802_11_subscribe_event(struct lbs_private *priv, - struct cmd_ds_command *cmd, u16 cmd_action, - void *pdata_buf) -{ - struct cmd_ds_802_11_subscribe_event *events = - (struct cmd_ds_802_11_subscribe_event *) pdata_buf; - - /* pdata_buf points to a struct cmd_ds_802_11_subscribe_event and room - * for various Marvell TLVs */ - - lbs_deb_enter(LBS_DEB_CMD); - - cmd->size = cpu_to_le16(sizeof(*events) - - sizeof(events->tlv) - + S_DS_GEN); - cmd->params.subscribe_event.action = cpu_to_le16(cmd_action); - if (cmd_action == CMD_ACT_GET) { - cmd->params.subscribe_event.events = 0; - } else { - ssize_t sz = lbs_tlv_size(events->tlv, sizeof(events->tlv)); - cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) + sz); - cmd->params.subscribe_event.events = events->events; - memcpy(cmd->params.subscribe_event.tlv, events->tlv, sz); - } - - lbs_deb_leave(LBS_DEB_CMD); -} - static void set_one_wpa_key(struct MrvlIEtype_keyParamSet * pkeyparamset, struct enc_key * pkey) { @@ -1545,10 +1498,7 @@ int lbs_prepare_and_send_command(struct lbs_private *priv, ret = 0; break; } - case CMD_802_11_SUBSCRIBE_EVENT: - lbs_cmd_802_11_subscribe_event(priv, cmdptr, - cmd_action, pdata_buf); - break; + case CMD_802_11_PWR_CFG: cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG); cmdptr->size = diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c index 8b71926d7a..159216a919 100644 --- a/drivers/net/wireless/libertas/cmdresp.c +++ b/drivers/net/wireless/libertas/cmdresp.c @@ -389,25 +389,6 @@ static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv, return 0; } -static int lbs_ret_802_11_subscribe_event(struct lbs_private *priv, - struct cmd_ds_command *resp) -{ - struct cmd_ds_802_11_subscribe_event *cmd_event = - &resp->params.subscribe_event; - struct cmd_ds_802_11_subscribe_event *dst_event = - (void *)priv->cur_cmd->callback_arg; - - lbs_deb_enter(LBS_DEB_CMD); - - if (dst_event->action == cpu_to_le16(CMD_ACT_GET)) { - dst_event->events = cmd_event->events; - memcpy(dst_event->tlv, cmd_event->tlv, sizeof(dst_event->tlv)); - } - - lbs_deb_leave(LBS_DEB_CMD); - return 0; -} - static inline int handle_cmd_response(struct lbs_private *priv, unsigned long dummy, struct cmd_header *cmd_response) @@ -518,9 +499,6 @@ static inline int handle_cmd_response(struct lbs_private *priv, sizeof(struct cmd_ds_802_11_led_ctrl)); spin_unlock_irqrestore(&priv->driver_lock, flags); break; - case CMD_RET(CMD_802_11_SUBSCRIBE_EVENT): - ret = lbs_ret_802_11_subscribe_event(priv, resp); - break; case CMD_RET(CMD_802_11_PWR_CFG): spin_lock_irqsave(&priv->driver_lock, flags); diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c index 44be3929c0..fd67b770dd 100644 --- a/drivers/net/wireless/libertas/debugfs.c +++ b/drivers/net/wireless/libertas/debugfs.c @@ -347,20 +347,19 @@ static ssize_t lbs_setuserscan(struct file *file, * and returns a pointer to the first data byte of the TLV, or to NULL * if the TLV hasn't been found. */ -static void *lbs_tlv_find(u16 tlv_type, const u8 *tlv, u16 size) +static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size) { - __le16 le_type = cpu_to_le16(tlv_type); - ssize_t pos = 0; struct mrvlietypesheader *tlv_h; + uint16_t length; + ssize_t pos = 0; + while (pos < size) { - u16 length; tlv_h = (struct mrvlietypesheader *) tlv; - if (tlv_h->type == le_type) - return tlv_h; - if (tlv_h->len == 0) + if (!tlv_h->len) return NULL; - length = le16_to_cpu(tlv_h->len) + - sizeof(struct mrvlietypesheader); + if (tlv_h->type == cpu_to_le16(tlv_type)) + return tlv_h; + length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h); pos += length; tlv += length; } @@ -368,100 +367,100 @@ static void *lbs_tlv_find(u16 tlv_type, const u8 *tlv, u16 size) } -/* - * This just gets the bitmap of currently subscribed events. Used when - * adding an additonal event subscription. - */ -static u16 lbs_get_events_bitmap(struct lbs_private *priv) -{ - ssize_t res; - - struct cmd_ds_802_11_subscribe_event *events = kzalloc( - sizeof(struct cmd_ds_802_11_subscribe_event), - GFP_KERNEL); - - res = lbs_prepare_and_send_command(priv, - CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_GET, - CMD_OPTION_WAITFORRSP, 0, events); - - if (res) { - kfree(events); - return 0; - } - return le16_to_cpu(events->events); -} - - -static ssize_t lbs_threshold_read( - u16 tlv_type, u16 event_mask, - struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask, + struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) { + struct cmd_ds_802_11_subscribe_event *subscribed; + struct mrvlietypes_thresholds *got; struct lbs_private *priv = file->private_data; - ssize_t res = 0; + ssize_t ret = 0; size_t pos = 0; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; + char *buf; u8 value; u8 freq; int events = 0; - struct cmd_ds_802_11_subscribe_event *subscribed = kzalloc( - sizeof(struct cmd_ds_802_11_subscribe_event), - GFP_KERNEL); - struct mrvlietypes_thresholds *got; + buf = (char *)get_zeroed_page(GFP_KERNEL); + if (!buf) + return -ENOMEM; - res = lbs_prepare_and_send_command(priv, - CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_GET, - CMD_OPTION_WAITFORRSP, 0, subscribed); - if (res) { - kfree(subscribed); - return res; + subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL); + if (!subscribed) { + ret = -ENOMEM; + goto out_page; } + subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed)); + subscribed->action = cpu_to_le16(CMD_ACT_GET); + + ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed); + if (ret) + goto out_cmd; + got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv)); if (got) { value = got->value; freq = got->freq; events = le16_to_cpu(subscribed->events); - } - kfree(subscribed); - if (got) pos += snprintf(buf, len, "%d %d %d\n", value, freq, - !!(events & event_mask)); + !!(events & event_mask)); + } - res = simple_read_from_buffer(userbuf, count, ppos, buf, pos); + ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); - free_page(addr); - return res; + out_cmd: + kfree(subscribed); + + out_page: + free_page((unsigned long)buf); + return ret; } -static ssize_t lbs_threshold_write( - u16 tlv_type, u16 event_mask, - struct file *file, - const char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask, + struct file *file, + const char __user *userbuf, size_t count, + loff_t *ppos) { - struct lbs_private *priv = file->private_data; - ssize_t res, buf_size; - int value, freq, curr_mask, new_mask; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; struct cmd_ds_802_11_subscribe_event *events; + struct mrvlietypes_thresholds *tlv; + struct lbs_private *priv = file->private_data; + ssize_t buf_size; + int value, freq, new_mask; + uint16_t curr_mask; + char *buf; + int ret; + + buf = (char *)get_zeroed_page(GFP_KERNEL); + if (!buf) + return -ENOMEM; buf_size = min(count, len - 1); if (copy_from_user(buf, userbuf, buf_size)) { - res = -EFAULT; - goto out_unlock; + ret = -EFAULT; + goto out_page; } - res = sscanf(buf, "%d %d %d", &value, &freq, &new_mask); - if (res != 3) { - res = -EFAULT; - goto out_unlock; + ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask); + if (ret != 3) { + ret = -EINVAL; + goto out_page; } - curr_mask = lbs_get_events_bitmap(priv); + events = kzalloc(sizeof(*events), GFP_KERNEL); + if (!events) { + ret = -ENOMEM; + goto out_page; + } + + events->hdr.size = cpu_to_le16(sizeof(*events)); + events->action = cpu_to_le16(CMD_ACT_GET); + + ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events); + if (ret) + goto out_events; + + curr_mask = le16_to_cpu(events->events); if (new_mask) new_mask = curr_mask | event_mask; @@ -469,147 +468,128 @@ static ssize_t lbs_threshold_write( new_mask = curr_mask & ~event_mask; /* Now everything is set and we can send stuff down to the firmware */ - events = kzalloc( - sizeof(struct cmd_ds_802_11_subscribe_event), - GFP_KERNEL); - if (events) { - struct mrvlietypes_thresholds *tlv = - (struct mrvlietypes_thresholds *) events->tlv; - events->action = cpu_to_le16(CMD_ACT_SET); - events->events = cpu_to_le16(new_mask); - tlv->header.type = cpu_to_le16(tlv_type); - tlv->header.len = cpu_to_le16( - sizeof(struct mrvlietypes_thresholds) - - sizeof(struct mrvlietypesheader)); - tlv->value = value; - if (tlv_type != TLV_TYPE_BCNMISS) - tlv->freq = freq; - lbs_prepare_and_send_command(priv, - CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_SET, - CMD_OPTION_WAITFORRSP, 0, events); - kfree(events); - } - res = count; -out_unlock: - free_page(addr); - return res; + tlv = (void *)events->tlv; + + events->action = cpu_to_le16(CMD_ACT_SET); + events->events = cpu_to_le16(new_mask); + tlv->header.type = cpu_to_le16(tlv_type); + tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header)); + tlv->value = value; + if (tlv_type != TLV_TYPE_BCNMISS) + tlv->freq = freq; + + /* The command header, the event mask, and the one TLV */ + events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 2 + sizeof(*tlv)); + + ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events); + + if (!ret) + ret = count; + out_events: + kfree(events); + out_page: + free_page((unsigned long)buf); + return ret; } -static ssize_t lbs_lowrssi_read( - struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_lowrssi_write( - struct file *file, const char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_lowsnr_read( - struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_lowsnr_write( - struct file *file, const char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_failcount_read( - struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_failcount_write( - struct file *file, const char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_highrssi_read( - struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_highrssi_write( - struct file *file, const char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_highsnr_read( - struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_highsnr_write( - struct file *file, const char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_bcnmiss_read( - struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } -static ssize_t lbs_bcnmiss_write( - struct file *file, const char __user *userbuf, - size_t count, loff_t *ppos) +static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf, + size_t count, loff_t *ppos) { return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS, - file, userbuf, count, ppos); + file, userbuf, count, ppos); } - - - - - static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { diff --git a/drivers/net/wireless/libertas/hostcmd.h b/drivers/net/wireless/libertas/hostcmd.h index fffec11d06..be325eda6a 100644 --- a/drivers/net/wireless/libertas/hostcmd.h +++ b/drivers/net/wireless/libertas/hostcmd.h @@ -156,6 +156,8 @@ struct cmd_ds_802_11_reset { }; struct cmd_ds_802_11_subscribe_event { + struct cmd_header hdr; + __le16 action; __le16 events; @@ -164,7 +166,7 @@ struct cmd_ds_802_11_subscribe_event { * 40 bytes. However, future firmware might add additional TLVs, so I * bump this up a bit. */ - u8 tlv[128]; + uint8_t tlv[128]; }; /* @@ -728,7 +730,6 @@ struct cmd_ds_command { struct cmd_ds_bt_access bt; struct cmd_ds_fwt_access fwt; struct cmd_ds_get_tsf gettsf; - struct cmd_ds_802_11_subscribe_event subscribe_event; struct cmd_ds_802_11_beacon_control bcn_ctrl; } params; } __attribute__ ((packed)); -- 2.39.5