iwlegacy: merge iwl-{eeprom,led}.h into common.h

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>

1 files changed, 303 insertions, 4 deletions

diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index 65c593d34bf0..8e4450edfa74 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -31,14 +31,13 @@
 #include <linux/kernel.h>
 #include <linux/leds.h>
 #include <linux/wait.h>
+#include <net/mac80211.h>
 #include <net/ieee80211_radiotap.h>
 
 #include "commands.h"
-#include "iwl-eeprom.h"
 #include "csr.h"
 #include "iwl-prph.h"
 #include "iwl-debug.h"
-#include "iwl-led.h"
 
 struct il_host_cmd;
 struct il_cmd;
@@ -178,6 +177,281 @@ struct il_tx_queue {
         u8 swq_id;
 };
 
+/*
+ * EEPROM access time values:
+ *
+ * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG.
+ * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
+ * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
+ * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
+ */
+#define IL_EEPROM_ACCESS_TIMEOUT        5000 /* uSec */
+
+#define IL_EEPROM_SEM_TIMEOUT           10   /* microseconds */
+#define IL_EEPROM_SEM_RETRY_LIMIT       1000 /* number of attempts (not time) */
+
+
+/*
+ * Regulatory channel usage flags in EEPROM struct il4965_eeprom_channel.flags.
+ *
+ * IBSS and/or AP operation is allowed *only* on those channels with
+ * (VALID && IBSS && ACTIVE && !RADAR).  This restriction is in place because
+ * RADAR detection is not supported by the 4965 driver, but is a
+ * requirement for establishing a new network for legal operation on channels
+ * requiring RADAR detection or restricting ACTIVE scanning.
+ *
+ * NOTE:  "WIDE" flag does not indicate anything about "HT40" 40 MHz channels.
+ *        It only indicates that 20 MHz channel use is supported; HT40 channel
+ *        usage is indicated by a separate set of regulatory flags for each
+ *        HT40 channel pair.
+ *
+ * NOTE:  Using a channel inappropriately will result in a uCode error!
+ */
+#define IL_NUM_TX_CALIB_GROUPS 5
+enum {
+        EEPROM_CHANNEL_VALID = (1 << 0),        /* usable for this SKU/geo */
+        EEPROM_CHANNEL_IBSS = (1 << 1),         /* usable as an IBSS channel */
+        /* Bit 2 Reserved */
+        EEPROM_CHANNEL_ACTIVE = (1 << 3),       /* active scanning allowed */
+        EEPROM_CHANNEL_RADAR = (1 << 4),        /* radar detection required */
+        EEPROM_CHANNEL_WIDE = (1 << 5),         /* 20 MHz channel okay */
+        /* Bit 6 Reserved (was Narrow Channel) */
+        EEPROM_CHANNEL_DFS = (1 << 7),  /* dynamic freq selection candidate */
+};
+
+/* SKU Capabilities */
+/* 3945 only */
+#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE                (1 << 0)
+#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE                (1 << 1)
+
+/* *regulatory* channel data format in eeprom, one for each channel.
+ * There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */
+struct il_eeprom_channel {
+        u8 flags;               /* EEPROM_CHANNEL_* flags copied from EEPROM */
+        s8 max_power_avg;       /* max power (dBm) on this chnl, limit 31 */
+} __packed;
+
+/* 3945 Specific */
+#define EEPROM_3945_EEPROM_VERSION      (0x2f)
+
+/* 4965 has two radio transmitters (and 3 radio receivers) */
+#define EEPROM_TX_POWER_TX_CHAINS      (2)
+
+/* 4965 has room for up to 8 sets of txpower calibration data */
+#define EEPROM_TX_POWER_BANDS          (8)
+
+/* 4965 factory calibration measures txpower gain settings for
+ * each of 3 target output levels */
+#define EEPROM_TX_POWER_MEASUREMENTS   (3)
+
+/* 4965 Specific */
+/* 4965 driver does not work with txpower calibration version < 5 */
+#define EEPROM_4965_TX_POWER_VERSION    (5)
+#define EEPROM_4965_EEPROM_VERSION      (0x2f)
+#define EEPROM_4965_CALIB_VERSION_OFFSET       (2*0xB6) /* 2 bytes */
+#define EEPROM_4965_CALIB_TXPOWER_OFFSET       (2*0xE8) /* 48  bytes */
+#define EEPROM_4965_BOARD_REVISION             (2*0x4F) /* 2 bytes */
+#define EEPROM_4965_BOARD_PBA                  (2*0x56+1) /* 9 bytes */
+
+/* 2.4 GHz */
+extern const u8 il_eeprom_band_1[14];
+
+/*
+ * factory calibration data for one txpower level, on one channel,
+ * measured on one of the 2 tx chains (radio transmitter and associated
+ * antenna).  EEPROM contains:
+ *
+ * 1)  Temperature (degrees Celsius) of device when measurement was made.
+ *
+ * 2)  Gain table idx used to achieve the target measurement power.
+ *     This refers to the "well-known" gain tables (see 4965.h).
+ *
+ * 3)  Actual measured output power, in half-dBm ("34" = 17 dBm).
+ *
+ * 4)  RF power amplifier detector level measurement (not used).
+ */
+struct il_eeprom_calib_measure {
+        u8 temperature;         /* Device temperature (Celsius) */
+        u8 gain_idx;            /* Index into gain table */
+        u8 actual_pow;          /* Measured RF output power, half-dBm */
+        s8 pa_det;              /* Power amp detector level (not used) */
+} __packed;
+
+
+/*
+ * measurement set for one channel.  EEPROM contains:
+ *
+ * 1)  Channel number measured
+ *
+ * 2)  Measurements for each of 3 power levels for each of 2 radio transmitters
+ *     (a.k.a. "tx chains") (6 measurements altogether)
+ */
+struct il_eeprom_calib_ch_info {
+        u8 ch_num;
+        struct il_eeprom_calib_measure
+                measurements[EEPROM_TX_POWER_TX_CHAINS]
+                        [EEPROM_TX_POWER_MEASUREMENTS];
+} __packed;
+
+/*
+ * txpower subband info.
+ *
+ * For each frequency subband, EEPROM contains the following:
+ *
+ * 1)  First and last channels within range of the subband.  "0" values
+ *     indicate that this sample set is not being used.
+ *
+ * 2)  Sample measurement sets for 2 channels close to the range endpoints.
+ */
+struct il_eeprom_calib_subband_info {
+        u8 ch_from;     /* channel number of lowest channel in subband */
+        u8 ch_to;       /* channel number of highest channel in subband */
+        struct il_eeprom_calib_ch_info ch1;
+        struct il_eeprom_calib_ch_info ch2;
+} __packed;
+
+
+/*
+ * txpower calibration info.  EEPROM contains:
+ *
+ * 1)  Factory-measured saturation power levels (maximum levels at which
+ *     tx power amplifier can output a signal without too much distortion).
+ *     There is one level for 2.4 GHz band and one for 5 GHz band.  These
+ *     values apply to all channels within each of the bands.
+ *
+ * 2)  Factory-measured power supply voltage level.  This is assumed to be
+ *     constant (i.e. same value applies to all channels/bands) while the
+ *     factory measurements are being made.
+ *
+ * 3)  Up to 8 sets of factory-measured txpower calibration values.
+ *     These are for different frequency ranges, since txpower gain
+ *     characteristics of the analog radio circuitry vary with frequency.
+ *
+ *     Not all sets need to be filled with data;
+ *     struct il_eeprom_calib_subband_info contains range of channels
+ *     (0 if unused) for each set of data.
+ */
+struct il_eeprom_calib_info {
+        u8 saturation_power24;  /* half-dBm (e.g. "34" = 17 dBm) */
+        u8 saturation_power52;  /* half-dBm */
+        __le16 voltage;         /* signed */
+        struct il_eeprom_calib_subband_info
+                band_info[EEPROM_TX_POWER_BANDS];
+} __packed;
+
+
+/* General */
+#define EEPROM_DEVICE_ID                    (2*0x08)    /* 2 bytes */
+#define EEPROM_MAC_ADDRESS                  (2*0x15)    /* 6  bytes */
+#define EEPROM_BOARD_REVISION               (2*0x35)    /* 2  bytes */
+#define EEPROM_BOARD_PBA_NUMBER             (2*0x3B+1)  /* 9  bytes */
+#define EEPROM_VERSION                      (2*0x44)    /* 2  bytes */
+#define EEPROM_SKU_CAP                      (2*0x45)    /* 2  bytes */
+#define EEPROM_OEM_MODE                     (2*0x46)    /* 2  bytes */
+#define EEPROM_WOWLAN_MODE                  (2*0x47)    /* 2  bytes */
+#define EEPROM_RADIO_CONFIG                 (2*0x48)    /* 2  bytes */
+#define EEPROM_NUM_MAC_ADDRESS              (2*0x4C)    /* 2  bytes */
+
+/* The following masks are to be applied on EEPROM_RADIO_CONFIG */
+#define EEPROM_RF_CFG_TYPE_MSK(x)   (x & 0x3)         /* bits 0-1   */
+#define EEPROM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) /* bits 2-3   */
+#define EEPROM_RF_CFG_DASH_MSK(x)   ((x >> 4)  & 0x3) /* bits 4-5   */
+#define EEPROM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) /* bits 6-7   */
+#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) /* bits 8-11  */
+#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
+
+#define EEPROM_3945_RF_CFG_TYPE_MAX  0x0
+#define EEPROM_4965_RF_CFG_TYPE_MAX  0x1
+
+/*
+ * Per-channel regulatory data.
+ *
+ * Each channel that *might* be supported by iwl has a fixed location
+ * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
+ * txpower (MSB).
+ *
+ * Entries immediately below are for 20 MHz channel width.  HT40 (40 MHz)
+ * channels (only for 4965, not supported by 3945) appear later in the EEPROM.
+ *
+ * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+ */
+#define EEPROM_REGULATORY_SKU_ID            (2*0x60)    /* 4  bytes */
+#define EEPROM_REGULATORY_BAND_1            (2*0x62)    /* 2  bytes */
+#define EEPROM_REGULATORY_BAND_1_CHANNELS   (2*0x63)    /* 28 bytes */
+
+/*
+ * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
+ * 5.0 GHz channels 7, 8, 11, 12, 16
+ * (4915-5080MHz) (none of these is ever supported)
+ */
+#define EEPROM_REGULATORY_BAND_2            (2*0x71)    /* 2  bytes */
+#define EEPROM_REGULATORY_BAND_2_CHANNELS   (2*0x72)    /* 26 bytes */
+
+/*
+ * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+ * (5170-5320MHz)
+ */
+#define EEPROM_REGULATORY_BAND_3            (2*0x7F)    /* 2  bytes */
+#define EEPROM_REGULATORY_BAND_3_CHANNELS   (2*0x80)    /* 24 bytes */
+
+/*
+ * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+ * (5500-5700MHz)
+ */
+#define EEPROM_REGULATORY_BAND_4            (2*0x8C)    /* 2  bytes */
+#define EEPROM_REGULATORY_BAND_4_CHANNELS   (2*0x8D)    /* 22 bytes */
+
+/*
+ * 5.7 GHz channels 145, 149, 153, 157, 161, 165
+ * (5725-5825MHz)
+ */
+#define EEPROM_REGULATORY_BAND_5            (2*0x98)    /* 2  bytes */
+#define EEPROM_REGULATORY_BAND_5_CHANNELS   (2*0x99)    /* 12 bytes */
+
+/*
+ * 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
+ *
+ * The channel listed is the center of the lower 20 MHz half of the channel.
+ * The overall center frequency is actually 2 channels (10 MHz) above that,
+ * and the upper half of each HT40 channel is centered 4 channels (20 MHz) away
+ * from the lower half; e.g. the upper half of HT40 channel 1 is channel 5,
+ * and the overall HT40 channel width centers on channel 3.
+ *
+ * NOTE:  The RXON command uses 20 MHz channel numbers to specify the
+ *        control channel to which to tune.  RXON also specifies whether the
+ *        control channel is the upper or lower half of a HT40 channel.
+ *
+ * NOTE:  4965 does not support HT40 channels on 2.4 GHz.
+ */
+#define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0)   /* 14 bytes */
+
+/*
+ * 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64),
+ * 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161)
+ */
+#define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8)   /* 22 bytes */
+
+#define EEPROM_REGULATORY_BAND_NO_HT40                  (0)
+
+struct il_eeprom_ops {
+        const u32 regulatory_bands[7];
+        int (*acquire_semaphore) (struct il_priv *il);
+        void (*release_semaphore) (struct il_priv *il);
+};
+
+
+int il_eeprom_init(struct il_priv *il);
+void il_eeprom_free(struct il_priv *il);
+const u8 *il_eeprom_query_addr(const struct il_priv *il,
+                                        size_t offset);
+u16 il_eeprom_query16(const struct il_priv *il, size_t offset);
+int il_init_channel_map(struct il_priv *il);
+void il_free_channel_map(struct il_priv *il);
+const struct il_channel_info *il_get_channel_info(
+                const struct il_priv *il,
+                enum ieee80211_band band, u16 channel);
+
+
 #define IL_NUM_SCAN_RATES         (2)
 
 struct il4965_channel_tgd_info {
@@ -1329,6 +1603,7 @@ il_is_channel_ibss(const struct il_channel_info *ch)
         return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0;
 }
 
+
 static inline void
 __il_free_pages(struct il_priv *il, struct page *page)
 {
@@ -1432,7 +1707,7 @@ struct il_lib_ops {
         int (*send_tx_power) (struct il_priv *il);
         void (*update_chain_flags)(struct il_priv *il);
 
-        /* eeprom operations (as defined in iwl-eeprom.h) */
+        /* eeprom operations */
         struct il_eeprom_ops eeprom_ops;
 
         /* temperature */
@@ -1478,7 +1753,7 @@ struct il_mod_params {
 /*
  * @led_compensation: compensate on the led on/off time per HW according
  *      to the deviation to achieve the desired led frequency.
- *      The detail algorithm is described in iwl-led.c
+ *      The detail algorithm is described in common.c
  * @chain_noise_num_beacons: number of beacons used to compute chain noise
  * @wd_timeout: TX queues watchdog timeout
  * @temperature_kelvin: temperature report by uCode in kelvin
@@ -1506,6 +1781,29 @@ struct il_base_params {
         const bool chain_noise_calib_by_driver;
 };
 
+#define IL_LED_SOLID 11
+#define IL_DEF_LED_INTRVL cpu_to_le32(1000)
+
+#define IL_LED_ACTIVITY       (0<<1)
+#define IL_LED_LINK           (1<<1)
+
+/*
+ * LED mode
+ *    IL_LED_DEFAULT:  use device default
+ *    IL_LED_RF_STATE: turn LED on/off based on RF state
+ *                      LED ON  = RF ON
+ *                      LED OFF = RF OFF
+ *    IL_LED_BLINK:    adjust led blink rate based on blink table
+ */
+enum il_led_mode {
+        IL_LED_DEFAULT,
+        IL_LED_RF_STATE,
+        IL_LED_BLINK,
+};
+
+void il_leds_init(struct il_priv *il);
+void il_leds_exit(struct il_priv *il);
+
 /**
  * struct il_cfg
  * @fw_name_pre: Firmware filename prefix. The api version and extension
@@ -3005,4 +3303,5 @@ extern void il3945_rate_control_unregister(void);
 
 extern int il_power_update_mode(struct il_priv *il, bool force);
 extern void il_power_initialize(struct il_priv *il);
+
 #endif /* __il_core_h__ */