rt2x00: Cleanup mode registration

Don't wildly pass any number for num_rates to rt2x00lib,
instead pass which type of rates are supported (CCK, OFDM).
Same for num_modes but then for the 2GHZ and 5GHZ band.

This makes the interface look much nicer and makes
extending it later easier.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 files changed, 81 insertions, 72 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 6c025cf32423..460ef2fb5104 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1352,8 +1352,8 @@ static void rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
         /*
          * Initialize hw_mode information.
          */
-        spec->num_modes = 1;
-        spec->num_rates = 4;
+        spec->supported_bands = SUPPORT_BAND_2GHZ;
+        spec->supported_rates = SUPPORT_RATE_CCK;
         spec->tx_power_a = NULL;
         spec->tx_power_bg = txpower;
         spec->tx_power_default = DEFAULT_TXPOWER;
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 93eaba852e5d..ffcd996df064 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1666,8 +1666,8 @@ static void rt2500pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
         /*
          * Initialize hw_mode information.
          */
-        spec->num_modes = 2;
-        spec->num_rates = 12;
+        spec->supported_bands = SUPPORT_BAND_2GHZ;
+        spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
         spec->tx_power_a = NULL;
         spec->tx_power_bg = txpower;
         spec->tx_power_default = DEFAULT_TXPOWER;
@@ -1688,9 +1688,9 @@ static void rt2500pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
                 spec->channels = rf_vals_bg_2525e;
         } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+                spec->supported_bands |= SUPPORT_BAND_5GHZ;
                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
                 spec->channels = rf_vals_5222;
-                spec->num_modes = 3;
         }
 }
 
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index f7dc06a74d1a..826ed692878c 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1586,8 +1586,8 @@ static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
         /*
          * Initialize hw_mode information.
          */
-        spec->num_modes = 2;
-        spec->num_rates = 12;
+        spec->supported_bands = SUPPORT_BAND_2GHZ;
+        spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
         spec->tx_power_a = NULL;
         spec->tx_power_bg = txpower;
         spec->tx_power_default = DEFAULT_TXPOWER;
@@ -1608,9 +1608,9 @@ static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
                 spec->channels = rf_vals_bg_2525e;
         } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+                spec->supported_bands |= SUPPORT_BAND_5GHZ;
                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
                 spec->channels = rf_vals_5222;
-                spec->num_modes = 3;
         }
 }
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 7a83e0a7dd05..e315d79b2aec 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -392,30 +392,38 @@ static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
         return (struct rt2x00_intf *)vif->drv_priv;
 }
 
-/*
+/**
+ * struct hw_mode_spec: Hardware specifications structure
+ *
  * Details about the supported modes, rates and channels
  * of a particular chipset. This is used by rt2x00lib
  * to build the ieee80211_hw_mode array for mac80211.
+ *
+ * @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
+ * @supported_rates: Rate types which are supported (CCK, OFDM).
+ * @num_channels: Number of supported channels. This is used as array size
+ *      for @tx_power_a, @tx_power_bg and @channels.
+ * channels: Device/chipset specific channel values (See &struct rf_channel).
+ * @tx_power_a: TX power values for all 5.2GHz channels (may be NULL).
+ * @tx_power_bg: TX power values for all 2.4GHz channels (may be NULL).
+ * @tx_power_default: Default TX power value to use when either
+ *      @tx_power_a or @tx_power_bg is missing.
  */
 struct hw_mode_spec {
-        /*
-         * Number of modes, rates and channels.
-         */
-        int num_modes;
-        int num_rates;
-        int num_channels;
+        unsigned int supported_bands;
+#define SUPPORT_BAND_2GHZ       0x00000001
+#define SUPPORT_BAND_5GHZ       0x00000002
+
+        unsigned int supported_rates;
+#define SUPPORT_RATE_CCK        0x00000001
+#define SUPPORT_RATE_OFDM       0x00000002
+
+        unsigned int num_channels;
+        const struct rf_channel *channels;
 
-        /*
-         * txpower values.
-         */
         const u8 *tx_power_a;
         const u8 *tx_power_bg;
         u8 tx_power_default;
-
-        /*
-         * Device/chipset specific value.
-         */
-        const struct rf_channel *channels;
 };
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 6ccbfc7cbf91..a644b9a7ca8f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -767,25 +767,25 @@ EXPORT_SYMBOL_GPL(rt2x00lib_write_tx_desc);
  */
 const struct rt2x00_rate rt2x00_supported_rates[12] = {
         {
-                .flags = 0,
+                .flags = DEV_RATE_CCK,
                 .bitrate = 10,
                 .ratemask = DEV_RATEMASK_1MB,
                 .plcp = 0x00,
         },
         {
-                .flags = DEV_RATE_SHORT_PREAMBLE,
+                .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
                 .bitrate = 20,
                 .ratemask = DEV_RATEMASK_2MB,
                 .plcp = 0x01,
         },
         {
-                .flags = DEV_RATE_SHORT_PREAMBLE,
+                .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
                 .bitrate = 55,
                 .ratemask = DEV_RATEMASK_5_5MB,
                 .plcp = 0x02,
         },
         {
-                .flags = DEV_RATE_SHORT_PREAMBLE,
+                .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
                 .bitrate = 110,
                 .ratemask = DEV_RATEMASK_11MB,
                 .plcp = 0x03,
@@ -868,67 +868,64 @@ static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev,
                                     struct hw_mode_spec *spec)
 {
         struct ieee80211_hw *hw = rt2x00dev->hw;
-        struct ieee80211_supported_band *sbands;
         struct ieee80211_channel *channels;
         struct ieee80211_rate *rates;
+        unsigned int num_rates;
         unsigned int i;
         unsigned char tx_power;
 
-        sbands = &rt2x00dev->bands[0];
+        num_rates = 0;
+        if (spec->supported_rates & SUPPORT_RATE_CCK)
+                num_rates += 4;
+        if (spec->supported_rates & SUPPORT_RATE_OFDM)
+                num_rates += 8;
 
         channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL);
         if (!channels)
                 return -ENOMEM;
 
-        rates = kzalloc(sizeof(*rates) * spec->num_rates, GFP_KERNEL);
+        rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL);
         if (!rates)
                 goto exit_free_channels;
 
         /*
          * Initialize Rate list.
          */
-        for (i = 0; i < spec->num_rates; i++)
+        for (i = 0; i < num_rates; i++)
                 rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i));
 
         /*
          * Initialize Channel list.
          */
         for (i = 0; i < spec->num_channels; i++) {
-                if (spec->channels[i].channel <= 14)
-                        tx_power = spec->tx_power_bg[i];
-                else if (spec->tx_power_a)
-                        tx_power = spec->tx_power_a[i];
-                else
-                        tx_power = spec->tx_power_default;
+                if (spec->channels[i].channel <= 14) {
+                        if (spec->tx_power_bg)
+                                tx_power = spec->tx_power_bg[i];
+                        else
+                                tx_power = spec->tx_power_default;
+                } else {
+                        if (spec->tx_power_a)
+                                tx_power = spec->tx_power_a[i];
+                        else
+                                tx_power = spec->tx_power_default;
+                }
 
                 rt2x00lib_channel(&channels[i],
                                   spec->channels[i].channel, tx_power, i);
         }
 
         /*
-         * Intitialize 802.11b
-         * Rates: CCK.
-         * Channels: 2.4 GHz
-         */
-        if (spec->num_modes > 0) {
-                sbands[IEEE80211_BAND_2GHZ].n_channels = 14;
-                sbands[IEEE80211_BAND_2GHZ].n_bitrates = 4;
-                sbands[IEEE80211_BAND_2GHZ].channels = channels;
-                sbands[IEEE80211_BAND_2GHZ].bitrates = rates;
-                hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &rt2x00dev->bands[IEEE80211_BAND_2GHZ];
-        }
-
-        /*
-         * Intitialize 802.11g
+         * Intitialize 802.11b, 802.11g
          * Rates: CCK, OFDM.
          * Channels: 2.4 GHz
          */
-        if (spec->num_modes > 1) {
-                sbands[IEEE80211_BAND_2GHZ].n_channels = 14;
-                sbands[IEEE80211_BAND_2GHZ].n_bitrates = spec->num_rates;
-                sbands[IEEE80211_BAND_2GHZ].channels = channels;
-                sbands[IEEE80211_BAND_2GHZ].bitrates = rates;
-                hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &rt2x00dev->bands[IEEE80211_BAND_2GHZ];
+        if (spec->supported_bands > SUPPORT_BAND_2GHZ) {
+                rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14;
+                rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates;
+                rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels;
+                rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates;
+                hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+                    &rt2x00dev->bands[IEEE80211_BAND_2GHZ];
         }
 
         /*
@@ -936,12 +933,15 @@ static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev,
          * Rates: OFDM.
          * Channels: OFDM, UNII, HiperLAN2.
          */
-        if (spec->num_modes > 2) {
-                sbands[IEEE80211_BAND_5GHZ].n_channels = spec->num_channels - 14;
-                sbands[IEEE80211_BAND_5GHZ].n_bitrates = spec->num_rates - 4;
-                sbands[IEEE80211_BAND_5GHZ].channels = &channels[14];
-                sbands[IEEE80211_BAND_5GHZ].bitrates = &rates[4];
-                hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &rt2x00dev->bands[IEEE80211_BAND_5GHZ];
+        if (spec->supported_bands > SUPPORT_BAND_5GHZ) {
+                rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels =
+                    spec->num_channels - 14;
+                rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates =
+                    num_rates - 4;
+                rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14];
+                rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4];
+                hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
+                    &rt2x00dev->bands[IEEE80211_BAND_5GHZ];
         }
 
         return 0;
diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h
index 2a611e4366b5..34ccb3de687e 100644
--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -38,8 +38,9 @@
  */
 struct rt2x00_rate {
         unsigned short flags;
-#define DEV_RATE_OFDM                   0x0001
-#define DEV_RATE_SHORT_PREAMBLE         0x0002
+#define DEV_RATE_CCK                    0x0001
+#define DEV_RATE_OFDM                   0x0002
+#define DEV_RATE_SHORT_PREAMBLE         0x0004
 
         unsigned short bitrate; /* In 100kbit/s */
 
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 62d49376c9af..d08349bed050 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2209,8 +2209,8 @@ static void rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
         /*
          * Initialize hw_mode information.
          */
-        spec->num_modes = 2;
-        spec->num_rates = 12;
+        spec->supported_bands = SUPPORT_BAND_2GHZ;
+        spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
         spec->tx_power_a = NULL;
         spec->tx_power_bg = txpower;
         spec->tx_power_default = DEFAULT_TXPOWER;
@@ -2225,7 +2225,7 @@ static void rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 
         if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
             rt2x00_rf(&rt2x00dev->chip, RF5325)) {
-                spec->num_modes = 3;
+                spec->supported_bands |= SUPPORT_BAND_5GHZ;
                 spec->num_channels = ARRAY_SIZE(rf_vals_seq);
 
                 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index c56540602ad6..bf2391b89571 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1791,8 +1791,8 @@ static void rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
         /*
          * Initialize hw_mode information.
          */
-        spec->num_modes = 2;
-        spec->num_rates = 12;
+        spec->supported_bands = SUPPORT_BAND_2GHZ;
+        spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
         spec->tx_power_a = NULL;
         spec->tx_power_bg = txpower;
         spec->tx_power_default = DEFAULT_TXPOWER;
@@ -1801,20 +1801,20 @@ static void rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2528);
                 spec->channels = rf_vals_bg_2528;
         } else if (rt2x00_rf(&rt2x00dev->chip, RF5226)) {
+                spec->supported_bands |= SUPPORT_BAND_5GHZ;
                 spec->num_channels = ARRAY_SIZE(rf_vals_5226);
                 spec->channels = rf_vals_5226;
         } else if (rt2x00_rf(&rt2x00dev->chip, RF2527)) {
                 spec->num_channels = 14;
                 spec->channels = rf_vals_5225_2527;
         } else if (rt2x00_rf(&rt2x00dev->chip, RF5225)) {
+                spec->supported_bands |= SUPPORT_BAND_5GHZ;
                 spec->num_channels = ARRAY_SIZE(rf_vals_5225_2527);
                 spec->channels = rf_vals_5225_2527;
         }
 
         if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
             rt2x00_rf(&rt2x00dev->chip, RF5226)) {
-                spec->num_modes = 3;
-
                 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
                 for (i = 0; i < 14; i++)
                         txpower[i] = TXPOWER_FROM_DEV(txpower[i]);