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iwlwifi: mvm: add definitions for new rate & flags
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As a part of preparing to the new rate & flags,
add new needed definitions.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211017123741.41563bea6610.I51a886fa75cca723c81877b386ba41b2a9db1122@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Miri Korenblit authored and Luca Coelho committed Oct 22, 2021
1 parent 48c6ebc commit 179354a
Showing 1 changed file with 144 additions and 4 deletions.
148 changes: 144 additions & 4 deletions drivers/net/wireless/intel/iwlwifi/fw/api/rs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -359,10 +359,6 @@ enum {
*/
#define RATE_MCS_CHAN_WIDTH_POS 11
#define RATE_MCS_CHAN_WIDTH_MSK_V1 (3 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_20 (0 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_40 (1 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_80 (2 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_160 (3 << RATE_MCS_CHAN_WIDTH_POS)

/* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */
#define RATE_MCS_SGI_POS_V1 13
Expand Down Expand Up @@ -437,6 +433,150 @@ enum {
#define RATE_MCS_CTS_REQUIRED_POS (31)
#define RATE_MCS_CTS_REQUIRED_MSK (0x1 << RATE_MCS_CTS_REQUIRED_POS)

/* rate_n_flags bit field version 2
*
* The 32-bit value has different layouts in the low 8 bits depending on the
* format. There are three formats, HT, VHT and legacy (11abg, with subformats
* for CCK and OFDM).
*
*/

/* Bits 10-8: rate format
* (0) Legacy CCK (1) Legacy OFDM (2) High-throughput (HT)
* (3) Very High-throughput (VHT) (4) High-efficiency (HE)
* (5) Extremely High-throughput (EHT)
*/
#define RATE_MCS_MOD_TYPE_POS 8
#define RATE_MCS_MOD_TYPE_MSK (0x7 << RATE_MCS_MOD_TYPE_POS)
#define RATE_MCS_CCK_MSK (0 << RATE_MCS_MOD_TYPE_POS)
#define RATE_MCS_LEGACY_OFDM_MSK (1 << RATE_MCS_MOD_TYPE_POS)
#define RATE_MCS_HT_MSK (2 << RATE_MCS_MOD_TYPE_POS)
#define RATE_MCS_VHT_MSK (3 << RATE_MCS_MOD_TYPE_POS)
#define RATE_MCS_HE_MSK (4 << RATE_MCS_MOD_TYPE_POS)
#define RATE_MCS_EHT_MSK (5 << RATE_MCS_MOD_TYPE_POS)

/*
* Legacy CCK rate format for bits 0:3:
*
* (0) 0xa - 1 Mbps
* (1) 0x14 - 2 Mbps
* (2) 0x37 - 5.5 Mbps
* (3) 0x6e - 11 nbps
*
* Legacy OFDM rate format for bis 3:0:
*
* (0) 6 Mbps
* (1) 9 Mbps
* (2) 12 Mbps
* (3) 18 Mbps
* (4) 24 Mbps
* (5) 36 Mbps
* (6) 48 Mbps
* (7) 54 Mbps
*
*/
#define RATE_LEGACY_RATE_MSK 0x7

/*
* HT, VHT, HE, EHT rate format for bits 3:0
* 3-0: MCS
*
*/
#define RATE_HT_MCS_CODE_MSK 0x7
#define RATE_MCS_NSS_POS 4
#define RATE_MCS_NSS_MSK (1 << RATE_MCS_NSS_POS)
#define RATE_MCS_CODE_MSK 0xf
#define RATE_HT_MCS_INDEX(r) ((((r) & RATE_MCS_NSS_MSK) >> 1) | \
((r) & RATE_HT_MCS_CODE_MSK))

/* Bits 7-5: reserved */

/*
* Bits 13-11: (0) 20MHz, (1) 40MHz, (2) 80MHz, (3) 160MHz, (4) 320MHz
*/
#define RATE_MCS_CHAN_WIDTH_MSK (0x7 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_20 (0 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_40 (1 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_80 (2 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_160 (3 << RATE_MCS_CHAN_WIDTH_POS)
#define RATE_MCS_CHAN_WIDTH_320 (4 << RATE_MCS_CHAN_WIDTH_POS)

/* Bit 15-14: Antenna selection:
* Bit 14: Ant A active
* Bit 15: Ant B active
*
* All relevant definitions are same as in v1
*/

/* Bit 16 (1) LDPC enables, (0) LDPC disabled */
#define RATE_MCS_LDPC_POS 16
#define RATE_MCS_LDPC_MSK (1 << RATE_MCS_LDPC_POS)

/* Bit 17: (0) SS, (1) SS*2 (same as v1) */

/* Bit 18: OFDM-HE dual carrier mode (same as v1) */

/* Bit 19: (0) Beamforming is off, (1) Beamforming is on (same as v1) */

/*
* Bit 22-20: HE LTF type and guard interval
* CCK:
* 0 long preamble
* 1 short preamble
* HT/VHT:
* 0 0.8us
* 1 0.4us
* HE (ext) SU:
* 0 1xLTF+0.8us
* 1 2xLTF+0.8us
* 2 2xLTF+1.6us
* 3 4xLTF+3.2us
* 4 4xLTF+0.8us
* HE MU:
* 0 4xLTF+0.8us
* 1 2xLTF+0.8us
* 2 2xLTF+1.6us
* 3 4xLTF+3.2us
* HE TRIG:
* 0 1xLTF+1.6us
* 1 2xLTF+1.6us
* 2 4xLTF+3.2us
* */
#define RATE_MCS_HE_GI_LTF_MSK (0x7 << RATE_MCS_HE_GI_LTF_POS)
#define RATE_MCS_SGI_POS RATE_MCS_HE_GI_LTF_POS
#define RATE_MCS_SGI_MSK (1 << RATE_MCS_SGI_POS)

/* Bit 24-23: HE type. (0) SU, (1) SU_EXT, (2) MU, (3) trigger based */
#define RATE_MCS_HE_TYPE_POS 23
#define RATE_MCS_HE_TYPE_SU (0 << RATE_MCS_HE_TYPE_POS)
#define RATE_MCS_HE_TYPE_EXT_SU (1 << RATE_MCS_HE_TYPE_POS)
#define RATE_MCS_HE_TYPE_MU (2 << RATE_MCS_HE_TYPE_POS)
#define RATE_MCS_HE_TYPE_TRIG (3 << RATE_MCS_HE_TYPE_POS)
#define RATE_MCS_HE_TYPE_MSK (3 << RATE_MCS_HE_TYPE_POS)

/* Bit 25: duplicate channel enabled
*
* if this bit is set, duplicate is according to BW (bits 11-13):
*
* CCK: 2x 20MHz
* OFDM Legacy: N x 20Mhz, (N = BW \ 2 , either 2, 4, 8, 16)
* EHT: 2 x BW/2, (80 - 2x40, 160 - 2x80, 320 - 2x160)
* */
#define RATE_MCS_DUP_POS 25
#define RATE_MCS_DUP_MSK (1 << RATE_MCS_DUP_POS)

/* Bit 26: (1) 106-tone RX (8 MHz RU), (0) normal bandwidth */
#define RATE_MCS_HE_106T_POS 26
#define RATE_MCS_HE_106T_MSK (1 << RATE_MCS_HE_106T_POS)

/* Bit 27: EHT extra LTF:
* instead of 1 LTF for SISO use 2 LTFs,
* instead of 2 LTFs for NSTS=2 use 4 LTFs*/
#define RATE_MCS_EHT_EXTRA_LTF_POS 27
#define RATE_MCS_EHT_EXTRA_LTF_MSK (1 << RATE_MCS_EHT_EXTRA_LTF_POS)

/* Bit 31-28: reserved */

/* Link Quality definitions */

/* # entries in rate scale table to support Tx retries */
Expand Down

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