iwlwifi: make initial calibration set configurable

This patch adds ability to configure initial calibration set. Not all HW
supported by iwlwifi use the same calibration set, XTAL is one example.
Some clean ups are also included in this patch.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000-hw.h b/drivers/net/wireless/iwlwifi/iwl-5000-hw.h
index c479ee211c5cf14d322db770c0c9e91a17a9e27a..66ed993a7298dbc864c0d58ad1ea9efcf9480f5b 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-5000-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-5000-hw.h
@@ -132,6 +132,7 @@ struct iwl5000_shared {
 /* calibrations defined for 5000 */
 /* defines the order in which results should be sent to the runtime uCode */
 enum iwl5000_calib {
+       IWL5000_CALIB_XTAL,
        IWL5000_CALIB_LO,
        IWL5000_CALIB_TX_IQ,
        IWL5000_CALIB_TX_IQ_PERD,

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 5155b8a760a7299cd5b01ae139821ec3c5dd0fe1..c1300fb71615407be7d49fbb7caa83f7c688217d 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -429,20 +429,19 @@ static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
 /*
  *  Calibration
  */
-static int iwl5000_send_Xtal_calib(struct iwl_priv *priv)
+static int iwl5000_set_Xtal_calib(struct iwl_priv *priv)
 {
+       u8 data[sizeof(struct iwl5000_calib_hdr) +
+               sizeof(struct iwl_cal_xtal_freq)];
+       struct iwl5000_calib_cmd *cmd = (struct iwl5000_calib_cmd *)data;
+       struct iwl_cal_xtal_freq *xtal = (struct iwl_cal_xtal_freq *)cmd->data;
        u16 *xtal_calib = (u16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL);
 
-       struct iwl5000_calibration cal_cmd = {
-               .op_code = IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD,
-               .data = {
-                       (u8)xtal_calib[0],
-                       (u8)xtal_calib[1],
-               }
-       };
-
-       return iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
-                               sizeof(cal_cmd), &cal_cmd);
+       cmd->hdr.op_code = IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD;
+       xtal->cap_pin1 = (u8)xtal_calib[0];
+       xtal->cap_pin2 = (u8)xtal_calib[1];
+       return iwl_calib_set(&priv->calib_results[IWL5000_CALIB_XTAL],
+                            data, sizeof(data));
 }
 
 static int iwl5000_send_calib_cfg(struct iwl_priv *priv)
@@ -784,10 +783,8 @@ static int iwl5000_alive_notify(struct iwl_priv *priv)
 
        iwl5000_send_wimax_coex(priv);
 
-       iwl5000_send_Xtal_calib(priv);
-
-       if (priv->ucode_type == UCODE_RT)
-               iwl_send_calib_results(priv);
+       iwl5000_set_Xtal_calib(priv);
+       iwl_send_calib_results(priv);
 
        return 0;
 }
@@ -844,6 +841,23 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
                break;
        }
 
+       /* Set initial calibration set */
+       switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
+       case CSR_HW_REV_TYPE_5100:
+       case CSR_HW_REV_TYPE_5300:
+       case CSR_HW_REV_TYPE_5350:
+               priv->hw_params.calib_init_cfg =
+                       BIT(IWL5000_CALIB_XTAL)         |
+                       BIT(IWL5000_CALIB_LO)           |
+                       BIT(IWL5000_CALIB_TX_IQ)        |
+                       BIT(IWL5000_CALIB_TX_IQ_PERD);
+               break;
+       case CSR_HW_REV_TYPE_5150:
+               priv->hw_params.calib_init_cfg = 0;
+               break;
+       }
+
+
        return 0;
 }
 

diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index 72fbf47229db7da9832c3eb05a6c2722df651b7e..25f4658f1a76b7a2a9a92c98893ac7bc66c93c27 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -70,7 +70,7 @@
  * INIT calibrations framework
  *****************************************************************************/
 
- int iwl_send_calib_results(struct iwl_priv *priv)
+int iwl_send_calib_results(struct iwl_priv *priv)
 {
        int ret = 0;
        int i = 0;
@@ -80,14 +80,16 @@
                .meta.flags = CMD_SIZE_HUGE,
        };
 
-       for (i = 0; i < IWL_CALIB_MAX; i++)
-               if (priv->calib_results[i].buf) {
+       for (i = 0; i < IWL_CALIB_MAX; i++) {
+               if ((BIT(i) & priv->hw_params.calib_init_cfg) &&
+                   priv->calib_results[i].buf) {
                        hcmd.len = priv->calib_results[i].buf_len;
                        hcmd.data = priv->calib_results[i].buf;
                        ret = iwl_send_cmd_sync(priv, &hcmd);
                        if (ret)
                                goto err;
                }
+       }
 
        return 0;
 err:

diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 8d04e966ad48fe31bc3cad9fbc0d5e010895e54b..fc467c545ce871b7d1c8cbea8a40aa7659617dac 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -98,6 +98,11 @@ enum {
        COEX_MEDIUM_NOTIFICATION = 0x5b,
        COEX_EVENT_CMD = 0x5c,
 
+       /* Calibration */
+       CALIBRATION_CFG_CMD = 0x65,
+       CALIBRATION_RES_NOTIFICATION = 0x66,
+       CALIBRATION_COMPLETE_NOTIFICATION = 0x67,
+
        /* 802.11h related */
        RADAR_NOTIFICATION = 0x70,      /* not used */
        REPLY_QUIET_CMD = 0x71,         /* not used */
@@ -2879,25 +2884,11 @@ enum {
        IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD = 19,
 };
 
-enum {
-       CALIBRATION_CFG_CMD = 0x65,
-       CALIBRATION_RES_NOTIFICATION = 0x66,
-       CALIBRATION_COMPLETE_NOTIFICATION = 0x67
-};
-
-struct iwl_cal_crystal_freq_cmd {
+struct iwl_cal_xtal_freq {
        u8 cap_pin1;
        u8 cap_pin2;
 } __attribute__ ((packed));
 
-struct iwl5000_calibration {
-       u8 op_code;
-       u8 first_group;
-       u8 num_groups;
-       u8 all_data_valid;
-       struct iwl_cal_crystal_freq_cmd data;
-} __attribute__ ((packed));
-
 #define IWL_CALIB_INIT_CFG_ALL __constant_cpu_to_le32(0xffffffff)
 
 struct iwl_calib_cfg_elmnt_s {
@@ -2927,6 +2918,11 @@ struct iwl5000_calib_hdr {
        u8 data_valid;
 } __attribute__ ((packed));
 
+struct iwl5000_calib_cmd {
+       struct iwl5000_calib_hdr hdr;
+       u8 data[0];
+} __attribute__ ((packed));
+
 struct iwl5000_calibration_chain_noise_reset_cmd {
        u8 op_code;     /* IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD */
        u8 flags;       /* not used */
@@ -3039,7 +3035,6 @@ struct iwl_rx_packet {
                struct iwl_notif_statistics stats;
                struct iwl_compressed_ba_resp compressed_ba;
                struct iwl4965_missed_beacon_notif missed_beacon;
-               struct iwl5000_calibration calib;
                __le32 status;
                u8 raw[0];
        } u;

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index c018121085e937dd210d2048f549f6cbcf6b0dfd..21258443141e05498715364b23e8fe49985c429c 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -527,6 +527,7 @@ struct iwl_sensitivity_ranges {
  * @sw_crypto: 0 for hw, 1 for sw
  * @max_xxx_size: for ucode uses
  * @ct_kill_threshold: temperature threshold
+ * @calib_init_cfg: setup initial claibrations for the hw
  * @struct iwl_sensitivity_ranges: range of sensitivity values
  * @first_ampdu_q: first HW queue available for ampdu
  */
@@ -548,6 +549,7 @@ struct iwl_hw_params {
        u32 max_data_size;
        u32 max_bsm_size;
        u32 ct_kill_threshold; /* value in hw-dependent units */
+       u32 calib_init_cfg;
        const struct iwl_sensitivity_ranges *sens;
        u8 first_ampdu_q;
 };
@@ -765,7 +767,7 @@ enum {
 
 
 #define IWL_MAX_NUM_QUEUES     20 /* FIXME: do dynamic allocation */
-#define IWL_CALIB_MAX  3
+#define IWL_CALIB_MAX  4
 
 struct iwl_priv {