wimax/i2400m: implement passive mode as a module option

Some versions of the user space Intel WiMAX daemon need to have full
control over the device initialization sequence. By setting the module
option i2400.passive_mode to 1, the driver defers all device
configuration and initialization to user space.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c
index 8fe70e75d030..b69fd8834c78 100644
--- a/drivers/net/wimax/i2400m/control.c
+++ b/drivers/net/wimax/i2400m/control.c
@@ -82,6 +82,13 @@
 #define D_SUBMODULE control
 #include "debug-levels.h"
 
+int i2400m_passive_mode;        /* 0 (passive mode disabled) by default */
+module_param_named(passive_mode, i2400m_passive_mode, int, 0644);
+MODULE_PARM_DESC(passive_mode,
+                 "If true, the driver will not do any device setup "
+                 "and leave it up to user space, who must be properly "
+                 "setup.");
+
 
 /*
  * Return if a TLV is of a give type and size
@@ -1335,6 +1342,8 @@ int i2400m_dev_initialize(struct i2400m *i2400m)
         unsigned argc = 0;
 
         d_fnstart(3, dev, "(i2400m %p)\n", i2400m);
+        if (i2400m_passive_mode)
+                goto out_passive;
         /* Disable idle mode? (enabled by default) */
         if (i2400m_idle_mode_disabled) {
                 if (i2400m_le_v1_3(i2400m)) {
@@ -1377,6 +1386,7 @@ int i2400m_dev_initialize(struct i2400m *i2400m)
         result = i2400m_set_init_config(i2400m, args, argc);
         if (result < 0)
                 goto error;
+out_passive:
         /*
          * Update state: Here it just calls a get state; parsing the
          * result (System State TLV and RF Status TLV [done in the rx