diff options
author | Xinming Hu <huxm@marvell.com> | 2014-06-19 21:38:56 -0700 |
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committer | John W. Linville <linville@tuxdriver.com> | 2014-06-25 15:32:46 -0400 |
commit | 937a50451b0d1d1834485b47f00a7c0295413d09 (patch) | |
tree | 7a9de3a58278ec0405fe11ba14eeebffc93dfd0f /drivers/net/wireless/mwifiex/debugfs.c | |
parent | 54881c6b37c8d6127fa67c6baf0dc887f1920ae6 (diff) | |
download | op-kernel-dev-937a50451b0d1d1834485b47f00a7c0295413d09.zip op-kernel-dev-937a50451b0d1d1834485b47f00a7c0295413d09.tar.gz |
mwifiex: add hscfg to debugfs
Some SDIO controllers do not support MMC_PM_KEEP_POWER properly.
To test host sleep feature without putting the system into sleep
we need to simulate host sleep configuration & handshake between
driver and firmware using customized parameters.
This patch adds hscfg debugfs item, with which user could change
host sleep parameters for debugging.
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwifiex/debugfs.c')
-rw-r--r-- | drivers/net/wireless/mwifiex/debugfs.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/debugfs.c b/drivers/net/wireless/mwifiex/debugfs.c index 7b419bb..6a194a9 100644 --- a/drivers/net/wireless/mwifiex/debugfs.c +++ b/drivers/net/wireless/mwifiex/debugfs.c @@ -692,6 +692,97 @@ done: return ret; } +/* Proc hscfg file write handler + * This function can be used to configure the host sleep parameters. + */ +static ssize_t +mwifiex_hscfg_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct mwifiex_private *priv = (void *)file->private_data; + unsigned long addr = get_zeroed_page(GFP_KERNEL); + char *buf = (char *)addr; + size_t buf_size = min_t(size_t, count, PAGE_SIZE - 1); + int ret, arg_num; + struct mwifiex_ds_hs_cfg hscfg; + int conditions = HS_CFG_COND_DEF; + u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF; + + if (!buf) + return -ENOMEM; + + if (copy_from_user(buf, ubuf, buf_size)) { + ret = -EFAULT; + goto done; + } + + arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap); + + memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg)); + + if (arg_num > 3) { + dev_err(priv->adapter->dev, "Too many arguments\n"); + ret = -EINVAL; + goto done; + } + + if (arg_num >= 1 && arg_num < 3) + mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET, + MWIFIEX_SYNC_CMD, &hscfg); + + if (arg_num) { + if (conditions == HS_CFG_CANCEL) { + mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD); + ret = count; + goto done; + } + hscfg.conditions = conditions; + } + if (arg_num >= 2) + hscfg.gpio = gpio; + if (arg_num == 3) + hscfg.gap = gap; + + hscfg.is_invoke_hostcmd = false; + mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, + MWIFIEX_SYNC_CMD, &hscfg); + + mwifiex_enable_hs(priv->adapter); + priv->adapter->hs_enabling = false; + ret = count; +done: + free_page(addr); + return ret; +} + +/* Proc hscfg file read handler + * This function can be used to read host sleep configuration + * parameters from driver. + */ +static ssize_t +mwifiex_hscfg_read(struct file *file, char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct mwifiex_private *priv = (void *)file->private_data; + unsigned long addr = get_zeroed_page(GFP_KERNEL); + char *buf = (char *)addr; + int pos, ret; + struct mwifiex_ds_hs_cfg hscfg; + + if (!buf) + return -ENOMEM; + + mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET, + MWIFIEX_SYNC_CMD, &hscfg); + + pos = snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", hscfg.conditions, + hscfg.gpio, hscfg.gap); + + ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); + + free_page(addr); + return ret; +} #define MWIFIEX_DFS_ADD_FILE(name) do { \ if (!debugfs_create_file(#name, 0644, priv->dfs_dev_dir, \ @@ -725,6 +816,7 @@ MWIFIEX_DFS_FILE_READ_OPS(getlog); MWIFIEX_DFS_FILE_READ_OPS(fw_dump); MWIFIEX_DFS_FILE_OPS(regrdwr); MWIFIEX_DFS_FILE_OPS(rdeeprom); +MWIFIEX_DFS_FILE_OPS(hscfg); /* * This function creates the debug FS directory structure and the files. @@ -747,6 +839,7 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv) MWIFIEX_DFS_ADD_FILE(regrdwr); MWIFIEX_DFS_ADD_FILE(rdeeprom); MWIFIEX_DFS_ADD_FILE(fw_dump); + MWIFIEX_DFS_ADD_FILE(hscfg); } /* |