This patch adds support for longbow RF chip.
Signed-off-by: Christian Lamparter <[email protected]>
---
diff -Nurp a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
--- a/drivers/net/wireless/p54/p54common.c 2009-01-11 00:09:38.000000000 +0100
+++ b/drivers/net/wireless/p54/p54common.c 2009-01-11 00:15:05.000000000 +0100
@@ -652,7 +652,7 @@ static int p54_parse_eeprom(struct ieee8
}
priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
- if (priv->rxhw == 4)
+ if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW)
p54_init_xbow_synth(dev);
if (!(synth & PDR_SYNTH_24_GHZ_DISABLED))
dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
@@ -705,7 +705,14 @@ static int p54_rssi_to_dbm(struct ieee80
struct p54_common *priv = dev->priv;
int band = dev->conf.channel->band;
- return ((rssi * priv->rssical_db[band].mul) / 64 +
+ if (priv->rxhw != PDR_SYNTH_FRONTEND_LONGBOW)
+ return ((rssi * priv->rssical_db[band].mul) / 64 +
+ priv->rssical_db[band].add) / 4;
+ else
+ /*
+ * TODO: find the correct formula
+ */
+ return ((rssi * priv->rssical_db[band].mul) / 64 +
priv->rssical_db[band].add) / 4;
}
@@ -1599,8 +1606,13 @@ static int p54_tx(struct ieee80211_hw *d
memset(txhdr->durations, 0, sizeof(txhdr->durations));
txhdr->tx_antenna = ((info->antenna_sel_tx == 0) ?
2 : info->antenna_sel_tx - 1) & priv->tx_diversity_mask;
- txhdr->output_power = priv->output_power;
- txhdr->cts_rate = cts_rate;
+ if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
+ txhdr->longbow.cts_rate = cts_rate;
+ txhdr->longbow.output_power = cpu_to_le16(priv->output_power);
+ } else {
+ txhdr->normal.output_power = priv->output_power;
+ txhdr->normal.cts_rate = cts_rate;
+ }
if (padding)
txhdr->align[0] = padding;
@@ -1702,47 +1714,77 @@ static int p54_scan(struct ieee80211_hw
{
struct p54_common *priv = dev->priv;
struct sk_buff *skb;
- struct p54_scan *chan;
+ struct p54_hdr *hdr;
+ struct p54_scan_head *head;
+ struct p54_iq_autocal_entry *iq_autocal;
+ union p54_scan_body_union *body;
+ struct p54_scan_tail_rate *rate;
+ struct pda_rssi_cal_entry *rssi;
unsigned int i;
void *entry;
int band = dev->conf.channel->band;
__le16 freq = cpu_to_le16(dev->conf.channel->center_freq);
- skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*chan),
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*head) +
+ 2 + sizeof(*iq_autocal) + sizeof(*body) +
+ sizeof(*rate) + 2 * sizeof(*rssi),
P54_CONTROL_TYPE_SCAN, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
- chan = (struct p54_scan *) skb_put(skb, sizeof(*chan));
- memset(chan->scan_params, 0, sizeof(chan->scan_params));
- chan->mode = cpu_to_le16(mode);
- chan->dwell = cpu_to_le16(dwell);
+ head = (struct p54_scan_head *) skb_put(skb, sizeof(*head));
+ memset(head->scan_params, 0, sizeof(head->scan_params));
+ head->mode = cpu_to_le16(mode);
+ head->dwell = cpu_to_le16(dwell);
+ head->freq = freq;
+
+ if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
+ __le16 *pa_power_points = (__le16 *) skb_put(skb, 2);
+ *pa_power_points = cpu_to_le16(0x0c);
+ }
+ iq_autocal = (void *) skb_put(skb, sizeof(*iq_autocal));
for (i = 0; i < priv->iq_autocal_len; i++) {
if (priv->iq_autocal[i].freq != freq)
continue;
- memcpy(&chan->iq_autocal, &priv->iq_autocal[i],
- sizeof(*priv->iq_autocal));
+ memcpy(iq_autocal, &priv->iq_autocal[i].params,
+ sizeof(struct p54_iq_autocal_entry));
break;
}
if (i == priv->iq_autocal_len)
goto err;
+ if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW)
+ body = (void *) skb_put(skb, sizeof(body->longbow));
+ else
+ body = (void *) skb_put(skb, sizeof(body->normal));
+
for (i = 0; i < priv->output_limit->entries; i++) {
- struct pda_channel_output_limit *limits;
__le16 *entry_freq = (void *) (priv->output_limit->data +
- priv->output_limit->entry_size * i);
+ priv->output_limit->entry_size * i);
if (*entry_freq != freq)
continue;
- limits = (void *) entry_freq;
- chan->val_barker = 0x38;
- chan->val_bpsk = chan->dup_bpsk = limits->val_bpsk;
- chan->val_qpsk = chan->dup_qpsk = limits->val_qpsk;
- chan->val_16qam = chan->dup_16qam = limits->val_16qam;
- chan->val_64qam = chan->dup_64qam = limits->val_64qam;
+ if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
+ memcpy(&body->longbow.power_limits,
+ (void *) entry_freq + sizeof(__le16),
+ priv->output_limit->entry_size);
+ } else {
+ struct pda_channel_output_limit *limits =
+ (void *) entry_freq;
+
+ body->normal.val_barker = 0x38;
+ body->normal.val_bpsk = body->normal.dup_bpsk =
+ limits->val_bpsk;
+ body->normal.val_qpsk = body->normal.dup_qpsk =
+ limits->val_qpsk;
+ body->normal.val_16qam = body->normal.dup_16qam =
+ limits->val_16qam;
+ body->normal.val_64qam = body->normal.dup_64qam =
+ limits->val_64qam;
+ }
break;
}
if (i == priv->output_limit->entries)
@@ -1750,34 +1792,59 @@ static int p54_scan(struct ieee80211_hw
entry = (void *)(priv->curve_data->data + priv->curve_data->offset);
for (i = 0; i < priv->curve_data->entries; i++) {
- struct pda_pa_curve_data *curve_data;
if (*((__le16 *)entry) != freq) {
entry += priv->curve_data->entry_size;
continue;
}
- entry += sizeof(__le16);
- chan->pa_points_per_curve = 8;
- memset(chan->curve_data, 0, sizeof(*chan->curve_data));
- curve_data = (void *) priv->curve_data->data;
-
- memcpy(chan->curve_data, entry,
- sizeof(struct p54_pa_curve_data_sample) *
- min_t(u8, 8, curve_data->points_per_channel));
+ if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
+ memcpy(&body->longbow.curve_data,
+ (void *) entry + sizeof(__le16),
+ priv->curve_data->entry_size);
+ } else {
+ struct p54_scan_body *chan = &body->normal;
+ struct pda_pa_curve_data *curve_data =
+ (void *) priv->curve_data->data;
+
+ entry += sizeof(__le16);
+ chan->pa_points_per_curve = 8;
+ memset(chan->curve_data, 0, sizeof(*chan->curve_data));
+ memcpy(chan->curve_data, entry,
+ sizeof(struct p54_pa_curve_data_sample) *
+ min((u8)8, curve_data->points_per_channel));
+ }
break;
}
if (i == priv->curve_data->entries)
goto err;
- if (priv->fw_var < 0x500) {
- chan->v1_rssi.mul = cpu_to_le16(priv->rssical_db[band].mul);
- chan->v1_rssi.add = cpu_to_le16(priv->rssical_db[band].add);
- } else {
- chan->v2.rssi.mul = cpu_to_le16(priv->rssical_db[band].mul);
- chan->v2.rssi.add = cpu_to_le16(priv->rssical_db[band].add);
- chan->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
- memset(chan->v2.rts_rates, 0, 8);
+ if ((priv->fw_var >= 0x500) && (priv->fw_var < 0x509)) {
+ rate = (void *) skb_put(skb, sizeof(*rate));
+ rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
+ for (i = 0; i < sizeof(rate->rts_rates); i++)
+ rate->rts_rates[i] = i;
+ }
+
+ rssi = (struct pda_rssi_cal_entry *) skb_put(skb, sizeof(*rssi));
+ rssi->mul = cpu_to_le16(priv->rssical_db[band].mul);
+ rssi->add = cpu_to_le16(priv->rssical_db[band].add);
+ if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
+ /* Longbow frontend needs ever more */
+ rssi = (void *) skb_put(skb, sizeof(*rssi));
+ rssi->mul = cpu_to_le16(priv->rssical_db[band].longbow_unkn);
+ rssi->add = cpu_to_le16(priv->rssical_db[band].longbow_unk2);
+ }
+
+ if (priv->fw_var >= 0x509) {
+ rate = (void *) skb_put(skb, sizeof(*rate));
+ rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
+ for (i = 0; i < sizeof(rate->rts_rates); i++)
+ rate->rts_rates[i] = i;
}
+
+ hdr = (struct p54_hdr *) skb->data;
+ hdr->len = cpu_to_le16(skb->len - sizeof(*hdr));
+
priv->tx(dev, skb);
return 0;
diff -Nurp a/drivers/net/wireless/p54/p54common.h b/drivers/net/wireless/p54/p54common.h
--- a/drivers/net/wireless/p54/p54common.h 2009-01-10 23:28:18.000000000 +0100
+++ b/drivers/net/wireless/p54/p54common.h 2009-01-10 23:32:03.000000000 +0100
@@ -26,6 +26,11 @@ struct bootrec {
} __attribute__((packed));
#define PDR_SYNTH_FRONTEND_MASK 0x0007
+#define PDR_SYNTH_FRONTEND_DUETTE3 0x0001
+#define PDR_SYNTH_FRONTEND_DUETTE2 0x0002
+#define PDR_SYNTH_FRONTEND_FRISBEE 0x0003
+#define PDR_SYNTH_FRONTEND_XBOW 0x0004
+#define PDR_SYNTH_FRONTEND_LONGBOW 0x0005
#define PDR_SYNTH_IQ_CAL_MASK 0x0018
#define PDR_SYNTH_IQ_CAL_PA_DETECTOR 0x0000
#define PDR_SYNTH_IQ_CAL_DISABLED 0x0008
@@ -125,9 +130,13 @@ struct eeprom_pda_wrap {
u8 data[0];
} __attribute__ ((packed));
+struct p54_iq_autocal_entry {
+ __le16 iq_param[4];
+} __attribute__ ((packed));
+
struct pda_iq_autocal_entry {
__le16 freq;
- __le16 iq_param[4];
+ struct p54_iq_autocal_entry params;
} __attribute__ ((packed));
struct pda_channel_output_limit {
@@ -186,6 +195,21 @@ struct pda_country {
u8 flags;
} __attribute__ ((packed));
+/*
+ * Warning: Longbow's structures are bogus.
+ */
+struct p54_channel_output_limit_longbow {
+ __le16 rf_power_points[12];
+} __attribute__ ((packed));
+
+struct p54_pa_curve_data_sample_longbow {
+ __le16 rf_power;
+ __le16 pa_detector;
+ struct {
+ __le16 data[4];
+ } points[3] __attribute__ ((packed));
+} __attribute__ ((packed));
+
struct pda_custom_wrapper {
__le16 entries;
__le16 entry_size;
@@ -381,9 +405,18 @@ struct p54_tx_data {
u8 backlog;
__le16 durations[4];
u8 tx_antenna;
- u8 output_power;
- u8 cts_rate;
- u8 unalloc2[3];
+ union {
+ struct {
+ u8 cts_rate;
+ __le16 output_power;
+ } __attribute__((packed)) longbow;
+ struct {
+ u8 output_power;
+ u8 cts_rate;
+ u8 unalloc;
+ } __attribute__ ((packed)) normal;
+ } __attribute__ ((packed));
+ u8 unalloc2[2];
u8 align[0];
} __attribute__ ((packed));
@@ -444,11 +477,14 @@ struct p54_setup_mac {
#define P54_SCAN_ACTIVE BIT(2)
#define P54_SCAN_FILTER BIT(3)
-struct p54_scan {
+struct p54_scan_head {
__le16 mode;
__le16 dwell;
u8 scan_params[20];
- struct pda_iq_autocal_entry iq_autocal;
+ __le16 freq;
+} __attribute__ ((packed));
+
+struct p54_scan_body {
u8 pa_points_per_curve;
u8 val_barker;
u8 val_bpsk;
@@ -460,19 +496,23 @@ struct p54_scan {
u8 dup_qpsk;
u8 dup_16qam;
u8 dup_64qam;
- union {
- struct pda_rssi_cal_entry v1_rssi;
+} __attribute__ ((packed));
- struct {
- __le32 basic_rate_mask;
- u8 rts_rates[8];
- struct pda_rssi_cal_entry rssi;
- } v2 __attribute__ ((packed));
- } __attribute__ ((packed));
+struct p54_scan_body_longbow {
+ struct p54_channel_output_limit_longbow power_limits;
+ struct p54_pa_curve_data_sample_longbow curve_data[8];
+ __le16 unkn[6]; /* maybe more power_limits or rate_mask */
} __attribute__ ((packed));
-#define P54_SCAN_V1_LEN 0x70
-#define P54_SCAN_V2_LEN 0x7c
+union p54_scan_body_union {
+ struct p54_scan_body normal;
+ struct p54_scan_body_longbow longbow;
+} __attribute__ ((packed));
+
+struct p54_scan_tail_rate {
+ __le32 basic_rate_mask;
+ u8 rts_rates[8];
+} __attribute__ ((packed));
struct p54_led {
__le16 mode;