From: "Rafał Miłecki" <zajec5@gmail.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
"John W. Linville" <linville@tuxdriver.com>
Cc: "bcm43xx-dev@lists.berlios.de" <bcm43xx-dev@lists.berlios.de>
Subject: [PATCH 4/6] b43: N-PHY: TX power control coeff setup
Date: Thu, 14 Jan 2010 23:43:14 +0100 [thread overview]
Message-ID: <op.u6jn2cb19lhzdc@linux-g0th.site> (raw)
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
drivers/net/wireless/b43/b43.h | 3 +
drivers/net/wireless/b43/phy_n.c | 68 +++++++++++++++++++++++++++++++-
drivers/net/wireless/b43/tables_nphy.c | 35 ++++++++++++++++
drivers/net/wireless/b43/tables_nphy.h | 1 +
4 files changed, 106 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index d5c67a6..964ddd4 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -260,6 +260,9 @@ enum {
#define B43_SHM_SH_NPHY_TXIQW1 0x0702
#define B43_SHM_SH_NPHY_TXIQW2 0x0704
#define B43_SHM_SH_NPHY_TXIQW3 0x0706
+/* SHM_SHARED tx pwr ctrl */
+#define B43_SHM_SH_NPHY_TXPWR_INDX0 0x0708
+#define B43_SHM_SH_NPHY_TXPWR_INDX1 0x070E
/* SHM_SCRATCH offsets */
#define B43_SHM_SC_MINCONT 0x0003 /* Minimum contention window */
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 67717c1..d5a2dc8 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -709,6 +709,72 @@ static void b43_nphy_update_tx_cal_ladder(struct b43_wldev *dev, u16 core)
}
}
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxPwrCtrlCoefSetup */
+static void b43_nphy_tx_pwr_ctrl_coef_setup(struct b43_wldev *dev)
+{
+ struct b43_phy_n *nphy = dev->phy.n;
+ int i, j;
+ u32 tmp;
+ u32 cur_real, cur_imag, real_part, imag_part;
+
+ u16 buffer[7];
+
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, true);
+
+ //TODO: Read an N PHY Table with ID 15, length 7, offset 80, width 16, and data pointer buffer
+
+ for (i = 0; i < 2; i++) {
+ tmp = ((buffer[i * 2] & 0x3FF) << 10) |
+ (buffer[i * 2 + 1] & 0x3FF);
+ b43_phy_write(dev, B43_NPHY_TABLE_ADDR,
+ (((i + 26) << 10) | 320));
+ for (j = 0; j < 128; j++) {
+ b43_phy_write(dev, B43_NPHY_TABLE_DATAHI,
+ ((tmp >> 16) & 0xFFFF));
+ b43_phy_write(dev, B43_NPHY_TABLE_DATALO,
+ (tmp & 0xFFFF));
+ }
+ }
+
+ for (i = 0; i < 2; i++) {
+ tmp = buffer[5 + i];
+ real_part = (tmp >> 8) & 0xFF;
+ imag_part = (tmp & 0xFF);
+ b43_phy_write(dev, B43_NPHY_TABLE_ADDR,
+ (((i + 26) << 10) | 448));
+
+ if (dev->phy.rev >= 3) {
+ cur_real = real_part;
+ cur_imag = imag_part;
+ tmp = ((cur_real & 0xFF) << 8) | (cur_imag & 0xFF);
+ }
+
+ for (j = 0; j < 128; j++) {
+ if (dev->phy.rev < 3) {
+ cur_real = (real_part * loscale[j] + 128) >> 8;
+ cur_imag = (imag_part * loscale[j] + 128) >> 8;
+ tmp = ((cur_real & 0xFF) << 8) |
+ (cur_imag & 0xFF);
+ }
+ b43_phy_write(dev, B43_NPHY_TABLE_DATAHI,
+ ((tmp >> 16) & 0xFFFF));
+ b43_phy_write(dev, B43_NPHY_TABLE_DATALO,
+ (tmp & 0xFFFF));
+ }
+ }
+
+ if (dev->phy.rev >= 3) {
+ b43_shm_write16(dev, B43_SHM_SHARED,
+ B43_SHM_SH_NPHY_TXPWR_INDX0, 0xFFFF);
+ b43_shm_write16(dev, B43_SHM_SHARED,
+ B43_SHM_SH_NPHY_TXPWR_INDX1, 0xFFFF);
+ }
+
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, false);
+}
+
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalRxIqRev2 */
static int b43_nphy_rev2_cal_rx_iq(struct b43_wldev *dev,
struct nphy_txgains target, u8 type, bool debug)
@@ -1787,7 +1853,7 @@ int b43_phy_initn(struct b43_wldev *dev)
}
}
- //TODO N PHY TX Power Control Coef Setup
+ b43_nphy_tx_pwr_ctrl_coef_setup(dev);
//TODO N PHY TX Power Control Enable with argument tx_pwr_state
b43_phy_write(dev, B43_NPHY_TXMACIF_HOLDOFF, 0x0015);
b43_phy_write(dev, B43_NPHY_TXMACDELAY, 0x0320);
diff --git a/drivers/net/wireless/b43/tables_nphy.c b/drivers/net/wireless/b43/tables_nphy.c
index 4816b70..d9291cf 100644
--- a/drivers/net/wireless/b43/tables_nphy.c
+++ b/drivers/net/wireless/b43/tables_nphy.c
@@ -2788,6 +2788,41 @@ const struct nphy_txiqcal_ladder ladder_iq[] = {
{ 100, 7 }
};
+const u16 loscale[] = {
+ 256, 256, 271, 271,
+ 287, 256, 256, 271,
+ 271, 287, 287, 304,
+ 304, 256, 256, 271,
+ 271, 287, 287, 304,
+ 304, 322, 322, 341,
+ 341, 362, 362, 383,
+ 383, 256, 256, 271,
+ 271, 287, 287, 304,
+ 304, 322, 322, 256,
+ 256, 271, 271, 287,
+ 287, 304, 304, 322,
+ 322, 341, 341, 362,
+ 362, 256, 256, 271,
+ 271, 287, 287, 304,
+ 304, 322, 322, 256,
+ 256, 271, 271, 287,
+ 287, 304, 304, 322,
+ 322, 341, 341, 362,
+ 362, 256, 256, 271,
+ 271, 287, 287, 304,
+ 304, 322, 322, 341,
+ 341, 362, 362, 383,
+ 383, 406, 406, 430,
+ 430, 455, 455, 482,
+ 482, 511, 511, 541,
+ 541, 573, 573, 607,
+ 607, 643, 643, 681,
+ 681, 722, 722, 764,
+ 764, 810, 810, 858,
+ 858, 908, 908, 962,
+ 962, 1019, 1019, 256
+};
+
static inline void assert_ntab_array_sizes(void)
{
#undef check
diff --git a/drivers/net/wireless/b43/tables_nphy.h b/drivers/net/wireless/b43/tables_nphy.h
index b5e0e4b..4a3d666 100644
--- a/drivers/net/wireless/b43/tables_nphy.h
+++ b/drivers/net/wireless/b43/tables_nphy.h
@@ -148,5 +148,6 @@ extern const u32 txpwrctrl_tx_gain_ipa_5g[];
extern const u16 tbl_iqcal_gainparams[2][9][8];
extern const struct nphy_txiqcal_ladder ladder_lo[];
extern const struct nphy_txiqcal_ladder ladder_iq[];
+extern const u16 loscale[];
#endif /* B43_TABLES_NPHY_H_ */
--
1.6.4.2
reply other threads:[~2010-01-14 22:43 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=op.u6jn2cb19lhzdc@linux-g0th.site \
--to=zajec5@gmail.com \
--cc=bcm43xx-dev@lists.berlios.de \
--cc=linux-wireless@vger.kernel.org \
--cc=linville@tuxdriver.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox