2 * Copyright (c) 2013 Qualcomm Atheros, Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
10 * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
13 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
14 * PERFORMANCE OF THIS SOFTWARE.
21 #include "ah_internal.h"
23 #include "ar9300/ar9300.h"
24 #include "ar9300/ar9300reg.h"
25 #include "ar9300/ar9300desc.h"
31 ar9300_get_rx_dp(struct ath_hal *ath, HAL_RX_QUEUE qtype)
33 if (qtype == HAL_RX_QUEUE_HP) {
34 return OS_REG_READ(ath, AR_HP_RXDP);
36 return OS_REG_READ(ath, AR_LP_RXDP);
44 ar9300_set_rx_dp(struct ath_hal *ah, u_int32_t rxdp, HAL_RX_QUEUE qtype)
46 HALASSERT((qtype == HAL_RX_QUEUE_HP) || (qtype == HAL_RX_QUEUE_LP));
48 if (qtype == HAL_RX_QUEUE_HP) {
49 OS_REG_WRITE(ah, AR_HP_RXDP, rxdp);
51 OS_REG_WRITE(ah, AR_LP_RXDP, rxdp);
56 * Set Receive Enable bits.
59 ar9300_enable_receive(struct ath_hal *ah)
61 OS_REG_WRITE(ah, AR_CR, 0);
65 * Set the RX abort bit.
68 ar9300_set_rx_abort(struct ath_hal *ah, HAL_BOOL set)
71 /* Set the force_rx_abort bit */
72 OS_REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
74 if ( AH9300(ah)->ah_reset_reason == HAL_RESET_BBPANIC ){
75 /* depending upon the BB panic status, rx state may not return to 0,
76 * so skipping the wait for BB panic reset */
77 OS_REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
82 ah, AR_OBS_BUS_1, AR_OBS_BUS_1_RX_STATE, 0);
83 /* Wait for Rx state to return to 0 */
85 /* abort: chip rx failed to go idle in 10 ms */
86 OS_REG_CLR_BIT(ah, AR_DIAG_SW,
87 (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
89 HALDEBUG(ah, HAL_DEBUG_RX,
90 "%s: rx failed to go idle in 10 ms RXSM=0x%x\n",
91 __func__, OS_REG_READ(ah, AR_OBS_BUS_1));
93 return AH_FALSE; /* failure */
97 OS_REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
100 return AH_TRUE; /* success */
104 * Stop Receive at the DMA engine
107 ar9300_stop_dma_receive(struct ath_hal *ah, u_int timeout)
110 HAL_BOOL status, okay;
113 #define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */
114 #define AH_TIME_QUANTUM 100 /* usec */
117 timeout = AH_RX_STOP_DMA_TIMEOUT;
120 org_value = OS_REG_READ(ah, AR_MACMISC);
122 OS_REG_WRITE(ah, AR_MACMISC,
123 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
124 (AR_MACMISC_MISC_OBS_BUS_1 << AR_MACMISC_MISC_OBS_BUS_MSB_S)));
127 ah, AR_DMADBG_7, AR_DMADBG_RX_STATE, 0);
128 /* wait for Rx DMA state machine to become idle */
130 HALDEBUG(ah, HAL_DEBUG_RX,
131 "reg AR_DMADBG_7 is not 0, instead 0x%08x\n",
132 OS_REG_READ(ah, AR_DMADBG_7));
135 /* Set receive disable bit */
136 OS_REG_WRITE(ah, AR_CR, AR_CR_RXD);
138 /* Wait for rx enable bit to go low */
139 for (wait = timeout / AH_TIME_QUANTUM; wait != 0; wait--) {
140 if ((OS_REG_READ(ah, AR_CR) & AR_CR_RXE) == 0) {
143 OS_DELAY(AH_TIME_QUANTUM);
147 HALDEBUG(ah, HAL_DEBUG_RX, "%s: dma failed to stop in %d ms\n"
148 "AR_CR=0x%08x\nAR_DIAG_SW=0x%08x\n",
151 OS_REG_READ(ah, AR_CR),
152 OS_REG_READ(ah, AR_DIAG_SW));
158 OS_REG_WRITE(ah, AR_MACMISC, org_value);
161 #undef AH_RX_STOP_DMA_TIMEOUT
162 #undef AH_TIME_QUANTUM
166 * Start Transmit at the PCU engine (unpause receive)
169 ar9300_start_pcu_receive(struct ath_hal *ah, HAL_BOOL is_scanning)
171 ar9300_enable_mib_counters(ah);
172 ar9300_ani_reset(ah, is_scanning);
173 /* Clear RX_DIS and RX_ABORT after enabling phy errors in ani_reset */
174 OS_REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
178 * Stop Transmit at the PCU engine (pause receive)
181 ar9300_stop_pcu_receive(struct ath_hal *ah)
183 OS_REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
184 ar9300_disable_mib_counters(ah);
188 * Set multicast filter 0 (lower 32-bits)
189 * filter 1 (upper 32-bits)
192 ar9300_set_multicast_filter(
197 OS_REG_WRITE(ah, AR_MCAST_FIL0, filter0);
198 OS_REG_WRITE(ah, AR_MCAST_FIL1, filter1);
202 * Get the receive filter.
205 ar9300_get_rx_filter(struct ath_hal *ah)
207 u_int32_t bits = OS_REG_READ(ah, AR_RX_FILTER);
208 u_int32_t phybits = OS_REG_READ(ah, AR_PHY_ERR);
209 if (phybits & AR_PHY_ERR_RADAR) {
210 bits |= HAL_RX_FILTER_PHYRADAR;
212 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING)) {
213 bits |= HAL_RX_FILTER_PHYERR;
219 * Set the receive filter.
222 ar9300_set_rx_filter(struct ath_hal *ah, u_int32_t bits)
226 if (AR_SREV_SCORPION(ah)) {
227 /* Enable Rx for 4 address frames */
228 bits |= AR_RX_4ADDRESS;
230 if (AR_SREV_JUPITER(ah) || AR_SREV_APHRODITE(ah)) {
231 /* HW fix for rx hang and corruption. */
232 bits |= AR_RX_CONTROL_WRAPPER;
234 OS_REG_WRITE(ah, AR_RX_FILTER,
235 bits | AR_RX_UNCOM_BA_BAR | AR_RX_COMPR_BAR);
237 if (bits & HAL_RX_FILTER_PHYRADAR) {
238 phybits |= AR_PHY_ERR_RADAR;
240 if (bits & HAL_RX_FILTER_PHYERR) {
241 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
243 OS_REG_WRITE(ah, AR_PHY_ERR, phybits);
245 OS_REG_WRITE(ah, AR_RXCFG,
246 OS_REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
248 OS_REG_WRITE(ah, AR_RXCFG,
249 OS_REG_READ(ah, AR_RXCFG) &~ AR_RXCFG_ZLFDMA);
254 * Select to pass PLCP headr or EVM data.
257 ar9300_set_rx_sel_evm(struct ath_hal *ah, HAL_BOOL sel_evm, HAL_BOOL just_query)
259 struct ath_hal_9300 *ahp = AH9300(ah);
260 HAL_BOOL old_value = ahp->ah_get_plcp_hdr == 0;
266 OS_REG_SET_BIT(ah, AR_PCU_MISC, AR_PCU_SEL_EVM);
268 OS_REG_CLR_BIT(ah, AR_PCU_MISC, AR_PCU_SEL_EVM);
271 ahp->ah_get_plcp_hdr = !sel_evm;
276 void ar9300_promisc_mode(struct ath_hal *ah, HAL_BOOL enable)
278 u_int32_t reg_val = 0;
279 reg_val = OS_REG_READ(ah, AR_RX_FILTER);
281 reg_val |= AR_RX_PROM;
282 } else{ /*Disable promisc mode */
283 reg_val &= ~AR_RX_PROM;
285 OS_REG_WRITE(ah, AR_RX_FILTER, reg_val);
289 ar9300_read_pktlog_reg(
291 u_int32_t *rxfilter_val,
292 u_int32_t *rxcfg_val,
293 u_int32_t *phy_err_mask_val,
294 u_int32_t *mac_pcu_phy_err_regval)
296 *rxfilter_val = OS_REG_READ(ah, AR_RX_FILTER);
297 *rxcfg_val = OS_REG_READ(ah, AR_RXCFG);
298 *phy_err_mask_val = OS_REG_READ(ah, AR_PHY_ERR);
299 *mac_pcu_phy_err_regval = OS_REG_READ(ah, 0x8338);
300 HALDEBUG(ah, HAL_DEBUG_UNMASKABLE,
301 "%s[%d] rxfilter_val 0x%08x , rxcfg_val 0x%08x, "
302 "phy_err_mask_val 0x%08x mac_pcu_phy_err_regval 0x%08x\n",
304 *rxfilter_val, *rxcfg_val, *phy_err_mask_val, *mac_pcu_phy_err_regval);
308 ar9300_write_pktlog_reg(
311 u_int32_t rxfilter_val,
313 u_int32_t phy_err_mask_val,
314 u_int32_t mac_pcu_phy_err_reg_val)
316 if (AR_SREV_JUPITER(ah) || AR_SREV_APHRODITE(ah)) {
317 /* HW fix for rx hang and corruption. */
318 rxfilter_val |= AR_RX_CONTROL_WRAPPER;
320 if (enable) { /* Enable pktlog phyerr setting */
321 OS_REG_WRITE(ah, AR_RX_FILTER, 0xffff | AR_RX_COMPR_BAR | rxfilter_val);
322 OS_REG_WRITE(ah, AR_PHY_ERR, 0xFFFFFFFF);
323 OS_REG_WRITE(ah, AR_RXCFG, rxcfg_val | AR_RXCFG_ZLFDMA);
324 OS_REG_WRITE(ah, AR_PHY_ERR_MASK_REG, mac_pcu_phy_err_reg_val | 0xFF);
325 } else { /* Disable phyerr and Restore regs */
326 OS_REG_WRITE(ah, AR_RX_FILTER, rxfilter_val);
327 OS_REG_WRITE(ah, AR_PHY_ERR, phy_err_mask_val);
328 OS_REG_WRITE(ah, AR_RXCFG, rxcfg_val);
329 OS_REG_WRITE(ah, AR_PHY_ERR_MASK_REG, mac_pcu_phy_err_reg_val);
331 HALDEBUG(ah, HAL_DEBUG_UNMASKABLE,
332 "%s[%d] ena %d rxfilter_val 0x%08x , rxcfg_val 0x%08x, "
333 "phy_err_mask_val 0x%08x mac_pcu_phy_err_regval 0x%08x\n",
335 enable, rxfilter_val, rxcfg_val,
336 phy_err_mask_val, mac_pcu_phy_err_reg_val);