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308-rt2x00-Add-powersaving-support-rt2800pci.patch

308-rt2x00-Add-powersaving-support-rt2800pci.patch 2.5 KB
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  1. From 059fef55f609bded8e83ec8b54729a2f500db938 Mon Sep 17 00:00:00 2001
    2. 

  2. From: Ivo van Doorn <[email protected]>
    3. 

  3. Date: Sat, 10 Jan 2009 14:29:21 +0100
    4. 

  4. Subject: [PATCH] rt2x00: Add powersaving support (rt2800pci)
    5. 

  5. 

  6. Signed-off-by: Ivo van Doorn <[email protected]>
    7. 

  7. ---
    8. 

  8.  drivers/net/wireless/rt2x00/rt2800pci.c |   36 ++++++++++++++++++++++++++++++-
    9. 

  9.  1 files changed, 35 insertions(+), 1 deletions(-)
    10. 

  10. 

  11. --- a/drivers/net/wireless/rt2x00/rt2800pci.c
    12. 

  12. +++ b/drivers/net/wireless/rt2x00/rt2800pci.c
    13. 

  13. @@ -880,6 +880,36 @@ static void rt2800pci_config_duration(st
    14. 

  14.  	rt2x00pci_register_write(rt2x00dev, BCN_TIME_CFG, reg);
    15. 

  15.  }
    16. 

  16.  
    17. 

  17. +static void rt2800pci_config_ps(struct rt2x00_dev *rt2x00dev,
    18. 

  18. +				struct rt2x00lib_conf *libconf)
    19. 

  19. +{
    20. 

  20. +	enum dev_state state =
    21. 

  21. +	    (libconf->conf->flags & IEEE80211_CONF_PS) ?
    22. 

  22. +		STATE_SLEEP : STATE_AWAKE;
    23. 

  23. +	u32 reg;
    24. 

  24. +
    25. 

  25. +	if (state == STATE_SLEEP) {
    26. 

  26. +		rt2x00pci_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0);
    27. 

  27. +
    28. 

  28. +		rt2x00pci_register_read(rt2x00dev, AUTOWAKEUP_CFG, &reg);
    29. 

  29. +		rt2x00_set_field32(&reg, AUTOWAKEUP_CFG_AUTO_LEAD_TIME, 5);
    30. 

  30. +		rt2x00_set_field32(&reg, AUTOWAKEUP_CFG_TBCN_BEFORE_WAKE,
    31. 

  31. +				   libconf->conf->listen_interval - 1);
    32. 

  32. +		rt2x00_set_field32(&reg, AUTOWAKEUP_CFG_AUTOWAKE, 1);
    33. 

  33. +		rt2x00pci_register_write(rt2x00dev, AUTOWAKEUP_CFG, reg);
    34. 

  34. +
    35. 

  35. +		rt2800pci_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0, 0);
    36. 

  36. +	} else {
    37. 

  37. +		rt2800pci_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0, 0);
    38. 

  38. +
    39. 

  39. +		rt2x00pci_register_read(rt2x00dev, AUTOWAKEUP_CFG, &reg);
    40. 

  40. +		rt2x00_set_field32(&reg, AUTOWAKEUP_CFG_AUTO_LEAD_TIME, 0);
    41. 

  41. +		rt2x00_set_field32(&reg, AUTOWAKEUP_CFG_TBCN_BEFORE_WAKE, 0);
    42. 

  42. +		rt2x00_set_field32(&reg, AUTOWAKEUP_CFG_AUTOWAKE, 0);
    43. 

  43. +		rt2x00pci_register_write(rt2x00dev, AUTOWAKEUP_CFG, reg);
    44. 

  44. +	}
    45. 

  45. +}
    46. 

  46. +
    47. 

  47.  static void rt2800pci_config(struct rt2x00_dev *rt2x00dev,
    48. 

  48.  			     struct rt2x00lib_conf *libconf,
    49. 

  49.  			     const unsigned int flags)
    50. 

  50. @@ -896,6 +926,8 @@ static void rt2800pci_config(struct rt2x
    51. 

  51.  		rt2800pci_config_retry_limit(rt2x00dev, libconf);
    52. 

  52.  	if (flags & IEEE80211_CONF_CHANGE_BEACON_INTERVAL)
    53. 

  53.  		rt2800pci_config_duration(rt2x00dev, libconf);
    54. 

  54. +	if (flags & IEEE80211_CONF_CHANGE_PS)
    55. 

  55. +		rt2800pci_config_ps(rt2x00dev, libconf);
    56. 

  56.  }
    57. 

  57.  
    58. 

  58.  /*
    59. 

  59. @@ -2346,7 +2378,9 @@ static int rt2800pci_probe_hw_mode(struc
    60. 

  60.  	 */
    61. 

  61.  	rt2x00dev->hw->flags =
    62. 

  62.  	    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
    63. 

  63. -	    IEEE80211_HW_SIGNAL_DBM;
    64. 

  64. +	    IEEE80211_HW_SIGNAL_DBM |
    65. 

  65. +	    IEEE80211_HW_SUPPORTS_PS |
    66. 

  66. +	    IEEE80211_HW_PS_NULLFUNC_STACK;
    67. 

  67.  	rt2x00dev->hw->extra_tx_headroom = TXWI_DESC_SIZE;
    68. 

  68.  
    69. 

  69.  	SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
    70.