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418 lines
14 KiB
Diff
418 lines
14 KiB
Diff
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
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@@ -8693,6 +8693,386 @@ void rt2800_rxdcoc_calibration(struct rt
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}
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EXPORT_SYMBOL_GPL(rt2800_rxdcoc_calibration);
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+static u32 rt2800_do_sqrt_accumulation(u32 si) {
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+ u32 root, root_pre, bit;
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+ char i;
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+ bit = 1 << 15;
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+ root = 0;
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+ for (i = 15; i >= 0; i = i - 1) {
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+ root_pre = root + bit;
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+ if ((root_pre*root_pre) <= si)
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+ root = root_pre;
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+ bit = bit >> 1;
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+ }
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+
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+ return root;
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+}
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+EXPORT_SYMBOL_GPL(rt2800_do_sqrt_accumulation);
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+
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+void rt2800_rxiq_calibration(struct rt2x00_dev *rt2x00dev) {
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+ u8 rfb0r1, rfb0r2, rfb0r42;
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+ u8 rfb4r0, rfb4r19;
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+ u8 rfb5r3, rfb5r4, rfb5r17, rfb5r18, rfb5r19, rfb5r20;
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+ u8 rfb6r0, rfb6r19;
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+ u8 rfb7r3, rfb7r4, rfb7r17, rfb7r18, rfb7r19, rfb7r20;
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+
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+ u8 bbp1, bbp4;
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+ u8 bbpr241, bbpr242;
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+ u32 i;
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+ u8 ch_idx;
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+ u8 bbpval;
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+ u8 rfval, vga_idx = 0;
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+ int mi = 0, mq = 0, si = 0, sq = 0, riq = 0;
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+ int sigma_i, sigma_q, r_iq, g_rx;
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+ int g_imb;
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+ int ph_rx;
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+ u32 savemacsysctrl = 0;
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+ u32 orig_RF_CONTROL0 = 0;
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+ u32 orig_RF_BYPASS0 = 0;
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+ u32 orig_RF_CONTROL1 = 0;
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+ u32 orig_RF_BYPASS1 = 0;
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+ u32 orig_RF_CONTROL3 = 0;
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+ u32 orig_RF_BYPASS3 = 0;
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+ u32 macstatus, bbpval1 = 0;
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+ u8 rf_vga_table[] = {0x20, 0x21, 0x22, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f};
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+
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+ savemacsysctrl = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL);
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+ orig_RF_CONTROL0 = rt2800_register_read(rt2x00dev, RF_CONTROL0);
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+ orig_RF_BYPASS0 = rt2800_register_read(rt2x00dev, RF_BYPASS0);
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+ orig_RF_CONTROL1 = rt2800_register_read(rt2x00dev, RF_CONTROL1);
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+ orig_RF_BYPASS1 = rt2800_register_read(rt2x00dev, RF_BYPASS1);
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+ orig_RF_CONTROL3 = rt2800_register_read(rt2x00dev, RF_CONTROL3);
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+ orig_RF_BYPASS3 = rt2800_register_read(rt2x00dev, RF_BYPASS3);
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+
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+ bbp1 = rt2800_bbp_read(rt2x00dev, 1);
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+ bbp4 = rt2800_bbp_read(rt2x00dev, 4);
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+
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+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x0);
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+
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+ for (i = 0; i < 10000; i++) {
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+ macstatus = rt2800_register_read(rt2x00dev, MAC_STATUS_CFG);
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+ if (macstatus & 0x3)
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+ udelay(50);
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+ else
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+ break;
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+ }
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+
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+ if (i == 10000)
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+ rt2x00_warn(rt2x00dev, "Wait MAC Status to MAX !!!\n");
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+
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+ bbpval = bbp4 & (~0x18);
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+ bbpval = bbp4 | 0x00;
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+ rt2800_bbp_write(rt2x00dev, 4, bbpval);
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+
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+ bbpval = rt2800_bbp_read(rt2x00dev, 21);
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+ bbpval = bbpval | 1;
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+ rt2800_bbp_write(rt2x00dev, 21, bbpval);
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+ bbpval = bbpval & 0xfe;
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+ rt2800_bbp_write(rt2x00dev, 21, bbpval);
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+
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+ rt2800_register_write(rt2x00dev, RF_CONTROL1, 0x00000202);
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+ rt2800_register_write(rt2x00dev, RF_BYPASS1, 0x00000303);
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+ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) {
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+ rt2800_register_write(rt2x00dev, RF_CONTROL3, 0x0101);
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+ } else {
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+ rt2800_register_write(rt2x00dev, RF_CONTROL3, 0x0000);
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+ }
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+ rt2800_register_write(rt2x00dev, RF_BYPASS3, 0xf1f1);
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+
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+ rfb0r1 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 1);
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+ rfb0r2 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 2);
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+ rfb0r42 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 42);
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+ rfb4r0 = rt2800_rfcsr_read_bank(rt2x00dev, 4, 0);
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+ rfb4r19 = rt2800_rfcsr_read_bank(rt2x00dev, 4, 19);
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+ rfb5r3 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 3);
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+ rfb5r4 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 4);
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+ rfb5r17 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 17);
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+ rfb5r18 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 18);
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+ rfb5r19 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 19);
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+ rfb5r20 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 20);
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+
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+ rfb6r0 = rt2800_rfcsr_read_bank(rt2x00dev, 6, 0);
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+ rfb6r19 = rt2800_rfcsr_read_bank(rt2x00dev, 6, 19);
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+ rfb7r3 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 3);
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+ rfb7r4 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 4);
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+ rfb7r17 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 17);
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+ rfb7r18 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 18);
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+ rfb7r19 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 19);
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+ rfb7r20 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 20);
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+
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+ rt2800_rfcsr_write_chanreg(rt2x00dev, 0, 0x87);
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+ rt2800_rfcsr_write_chanreg(rt2x00dev, 19, 0x27);
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 3, 0x38);
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 4, 0x38);
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x80);
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 18, 0xC1);
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 19, 0x60);
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 20, 0x00);
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+
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+ rt2800_bbp_write(rt2x00dev, 23, 0x0);
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+ rt2800_bbp_write(rt2x00dev, 24, 0x0);
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+
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+ rt2800_bbp_dcoc_write(rt2x00dev, 5, 0x0);
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+
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+ bbpr241 = rt2800_bbp_read(rt2x00dev, 241);
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+ bbpr242 = rt2800_bbp_read(rt2x00dev, 242);
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+
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+ rt2800_bbp_write(rt2x00dev, 241, 0x10);
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+ rt2800_bbp_write(rt2x00dev, 242, 0x84);
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+ rt2800_bbp_write(rt2x00dev, 244, 0x31);
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+
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+ bbpval = rt2800_bbp_dcoc_read(rt2x00dev, 3);
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+ bbpval = bbpval & (~0x7);
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+ rt2800_bbp_dcoc_write(rt2x00dev, 3, bbpval);
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+
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+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00000004);
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+ udelay(1);
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+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00000006);
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+ usleep_range(1, 200);
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+ rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x00003376);
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+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00001006);
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+ udelay(1);
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+ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) {
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+ rt2800_bbp_write(rt2x00dev, 23, 0x06);
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+ rt2800_bbp_write(rt2x00dev, 24, 0x06);
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+ } else {
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+ rt2800_bbp_write(rt2x00dev, 23, 0x02);
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+ rt2800_bbp_write(rt2x00dev, 24, 0x02);
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+ }
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+
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+ for (ch_idx = 0; ch_idx < 2; ch_idx = ch_idx + 1) {
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+ if (ch_idx == 0) {
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+ rfval = rfb0r1 & (~0x3);
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+ rfval = rfb0r1 | 0x1;
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 1, rfval);
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+ rfval = rfb0r2 & (~0x33);
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+ rfval = rfb0r2 | 0x11;
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, rfval);
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+ rfval = rfb0r42 & (~0x50);
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+ rfval = rfb0r42 | 0x10;
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 42, rfval);
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+
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+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00001006);
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+ udelay(1);
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+
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+ bbpval = bbp1 & (~ 0x18);
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+ bbpval = bbpval | 0x00;
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+ rt2800_bbp_write(rt2x00dev, 1, bbpval);
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+
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+ rt2800_bbp_dcoc_write(rt2x00dev, 1, 0x00);
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+ } else {
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+ rfval = rfb0r1 & (~0x3);
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+ rfval = rfb0r1 | 0x2;
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 1, rfval);
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+ rfval = rfb0r2 & (~0x33);
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+ rfval = rfb0r2 | 0x22;
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, rfval);
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+ rfval = rfb0r42 & (~0x50);
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+ rfval = rfb0r42 | 0x40;
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 42, rfval);
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+
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+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00002006);
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+ udelay(1);
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+
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+ bbpval = bbp1 & (~ 0x18);
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+ bbpval = bbpval | 0x08;
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+ rt2800_bbp_write(rt2x00dev, 1, bbpval);
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+
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+ rt2800_bbp_dcoc_write(rt2x00dev, 1, 0x01);
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+ }
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+ udelay(500);
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+
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+ vga_idx = 0;
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+ while (vga_idx < 11) {
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 3, rf_vga_table[vga_idx]);
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+ rt2800_rfcsr_write_dccal(rt2x00dev, 4, rf_vga_table[vga_idx]);
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+
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+ rt2800_bbp_dcoc_write(rt2x00dev, 0, 0x93);
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+
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+ for (i = 0; i < 10000; i++) {
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+ bbpval = rt2800_bbp_read(rt2x00dev, 159);
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+ if ((bbpval & 0xff) == 0x93)
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+ udelay(50);
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+ else
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+ break;
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+ }
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+
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+ if ((bbpval & 0xff) == 0x93) {
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+ rt2x00_warn(rt2x00dev, "Fatal Error: Calibration doesn't finish");
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+ goto restore_value;
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+ }
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+
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+ for (i = 0; i < 5; i++) {
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+ u32 bbptemp = 0;
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+ u8 value = 0;
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+ int result = 0;
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+
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+ rt2800_bbp_write(rt2x00dev, 158, 0x1e);
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+ rt2800_bbp_write(rt2x00dev, 159, i);
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+ rt2800_bbp_write(rt2x00dev, 158, 0x22);
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+ value = rt2800_bbp_read(rt2x00dev, 159);
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+ bbptemp = bbptemp + (value << 24);
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+ rt2800_bbp_write(rt2x00dev, 158, 0x21);
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+ value = rt2800_bbp_read(rt2x00dev, 159);
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+ bbptemp = bbptemp + (value << 16);
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+ rt2800_bbp_write(rt2x00dev, 158, 0x20);
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+ value = rt2800_bbp_read(rt2x00dev, 159);
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+ bbptemp = bbptemp + (value << 8);
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+ rt2800_bbp_write(rt2x00dev, 158, 0x1f);
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+ value = rt2800_bbp_read(rt2x00dev, 159);
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+ bbptemp = bbptemp + value;
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+
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+ if ((i < 2) && (bbptemp & 0x800000))
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+ result = (bbptemp & 0xffffff) - 0x1000000;
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+ else if (i == 4)
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+ result = bbptemp;
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+ else
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+ result = bbptemp;
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+
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+ if (i == 0)
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+ mi = result/4096;
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+ else if (i == 1)
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+ mq = result/4096;
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+ else if (i == 2)
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+ si = bbptemp/4096;
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+ else if (i == 3)
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+ sq = bbptemp/4096;
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+ else
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+ riq = result/4096;
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+ }
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+
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+ bbpval1 = si - mi*mi;
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+ rt2x00_dbg(rt2x00dev, "RXIQ si=%d, sq=%d, riq=%d, bbpval %d, vga_idx %d", si, sq, riq, bbpval1, vga_idx);
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+
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+ if (bbpval1 >= (100*100))
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+ break;
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+
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+ if (bbpval1 <= 100)
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+ vga_idx = vga_idx + 9;
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+ else if (bbpval1 <= 158)
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+ vga_idx = vga_idx + 8;
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+ else if (bbpval1 <= 251)
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+ vga_idx = vga_idx + 7;
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+ else if (bbpval1 <= 398)
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+ vga_idx = vga_idx + 6;
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+ else if (bbpval1 <= 630)
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+ vga_idx = vga_idx + 5;
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+ else if (bbpval1 <= 1000)
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+ vga_idx = vga_idx + 4;
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+ else if (bbpval1 <= 1584)
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+ vga_idx = vga_idx + 3;
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+ else if (bbpval1 <= 2511)
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+ vga_idx = vga_idx + 2;
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+ else
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+ vga_idx = vga_idx + 1;
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+ }
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+
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+ sigma_i = rt2800_do_sqrt_accumulation(100*(si - mi*mi));
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+ sigma_q = rt2800_do_sqrt_accumulation(100*(sq - mq*mq));
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+ r_iq = 10*(riq-(mi*mq));
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+
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+ rt2x00_dbg(rt2x00dev, "Sigma_i=%d, Sigma_q=%d, R_iq=%d", sigma_i, sigma_q, r_iq);
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+
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+ if (((sigma_i <= 1400 ) && (sigma_i >= 1000))
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+ && ((sigma_i - sigma_q) <= 112)
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+ && ((sigma_i - sigma_q) >= -112)
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+ && ((mi <= 32) && (mi >= -32))
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+ && ((mq <= 32) && (mq >= -32))) {
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+ r_iq = 10*(riq-(mi*mq));
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+ rt2x00_dbg(rt2x00dev, "RXIQ Sigma_i=%d, Sigma_q=%d, R_iq=%d\n", sigma_i, sigma_q, r_iq);
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+
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+ g_rx = (1000 * sigma_q) / sigma_i;
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+ g_imb = ((-2) * 128 * (1000 - g_rx)) / (1000 + g_rx);
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+ ph_rx = (r_iq * 2292) / (sigma_i * sigma_q);
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+ rt2x00_info(rt2x00dev, "RXIQ G_imb=%d, Ph_rx=%d\n", g_imb, ph_rx);
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+
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+ if ((ph_rx > 20) || (ph_rx < -20)) {
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+ ph_rx = 0;
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+ rt2x00_warn(rt2x00dev, "RXIQ calibration FAIL");
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+ }
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+
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+ if ((g_imb > 12) || (g_imb < -12)) {
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+ g_imb = 0;
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+ rt2x00_warn(rt2x00dev, "RXIQ calibration FAIL");
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+ }
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+ }
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+ else {
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+ g_imb = 0;
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+ ph_rx = 0;
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+ rt2x00_dbg(rt2x00dev, "RXIQ Sigma_i=%d, Sigma_q=%d, R_iq=%d\n", sigma_i, sigma_q, r_iq);
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+ rt2x00_warn(rt2x00dev, "RXIQ calibration FAIL");
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+ }
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+
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+ if (ch_idx == 0) {
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+ rt2800_bbp_write(rt2x00dev, 158, 0x37);
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+ rt2800_bbp_write(rt2x00dev, 159, g_imb & 0x3f);
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+ rt2800_bbp_write(rt2x00dev, 158, 0x35);
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+ rt2800_bbp_write(rt2x00dev, 159, ph_rx & 0x3f);
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+ } else {
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+ rt2800_bbp_write(rt2x00dev, 158, 0x55);
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+ rt2800_bbp_write(rt2x00dev, 159, g_imb & 0x3f);
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+ rt2800_bbp_write(rt2x00dev, 158, 0x53);
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+ rt2800_bbp_write(rt2x00dev, 159, ph_rx & 0x3f);
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+ }
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+ }
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+
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+restore_value:
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+ rt2800_bbp_write(rt2x00dev, 158, 0x3);
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+ bbpval = rt2800_bbp_read(rt2x00dev, 159);
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+ rt2800_bbp_write(rt2x00dev, 159, (bbpval | 0x07));
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+
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+ rt2800_bbp_write(rt2x00dev, 158, 0x00);
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+ rt2800_bbp_write(rt2x00dev, 159, 0x00);
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+ rt2800_bbp_write(rt2x00dev, 1, bbp1);
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+ rt2800_bbp_write(rt2x00dev, 4, bbp4);
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+ rt2800_bbp_write(rt2x00dev, 241, bbpr241);
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+ rt2800_bbp_write(rt2x00dev, 242, bbpr242);
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+
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+ rt2800_bbp_write(rt2x00dev, 244, 0x00);
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+ bbpval = rt2800_bbp_read(rt2x00dev, 21);
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+ bbpval = (bbpval | 0x1);
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+ rt2800_bbp_write(rt2x00dev, 21, bbpval);
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+ usleep_range(10, 200);
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+ bbpval = (bbpval & 0xfe);
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+ rt2800_bbp_write(rt2x00dev, 21, bbpval);
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+
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 1, rfb0r1);
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, rfb0r2);
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+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 42, rfb0r42);
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+
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+ rt2800_rfcsr_write_bank(rt2x00dev, 4, 0, rfb4r0);
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+ rt2800_rfcsr_write_bank(rt2x00dev, 4, 19, rfb4r19);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 3, rfb5r3);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 4, rfb5r4);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 17, rfb5r17);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 18, rfb5r18);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 19, rfb5r19);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 20, rfb5r20);
|
|
+
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 6, 0, rfb6r0);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 6, 19, rfb6r19);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 7, 3, rfb7r3);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 7, 4, rfb7r4);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 7, 17, rfb7r17);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 7, 18, rfb7r18);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 7, 19, rfb7r19);
|
|
+ rt2800_rfcsr_write_bank(rt2x00dev, 7, 20, rfb7r20);
|
|
+
|
|
+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00000006);
|
|
+ udelay(1);
|
|
+ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00000004);
|
|
+ udelay(1);
|
|
+ rt2800_register_write(rt2x00dev, RF_CONTROL0, orig_RF_CONTROL0);
|
|
+ udelay(1);
|
|
+ rt2800_register_write(rt2x00dev, RF_BYPASS0, orig_RF_BYPASS0);
|
|
+ rt2800_register_write(rt2x00dev, RF_CONTROL1, orig_RF_CONTROL1);
|
|
+ rt2800_register_write(rt2x00dev, RF_BYPASS1, orig_RF_BYPASS1);
|
|
+ rt2800_register_write(rt2x00dev, RF_CONTROL3, orig_RF_CONTROL3);
|
|
+ rt2800_register_write(rt2x00dev, RF_BYPASS3, orig_RF_BYPASS3);
|
|
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, savemacsysctrl);
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(rt2800_rxiq_calibration);
|
|
+
|
|
static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev,
|
|
bool set_bw, bool is_ht40)
|
|
{
|
|
@@ -9305,6 +9685,7 @@ static void rt2800_init_rfcsr_6352(struc
|
|
rt2800_rxdcoc_calibration(rt2x00dev);
|
|
rt2800_bw_filter_calibration(rt2x00dev, true);
|
|
rt2800_bw_filter_calibration(rt2x00dev, false);
|
|
+ rt2800_rxiq_calibration(rt2x00dev);
|
|
}
|
|
|
|
static void rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
|
|
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
|
|
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
|
|
@@ -246,6 +246,7 @@ void rt2800_rf_self_txdc_cal(struct rt2x
|
|
int rt2800_calcrcalibrationcode(struct rt2x00_dev *rt2x00dev, int d1, int d2);
|
|
void rt2800_r_calibration(struct rt2x00_dev *rt2x00dev);
|
|
void rt2800_rxdcoc_calibration(struct rt2x00_dev *rt2x00dev);
|
|
+void rt2800_rxiq_calibration(struct rt2x00_dev *rt2x00dev);
|
|
|
|
int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev);
|
|
void rt2800_disable_radio(struct rt2x00_dev *rt2x00dev);
|
|
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
|
|
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
|
|
@@ -566,6 +566,7 @@ struct rt2x00lib_ops {
|
|
int (*calcrcalibrationcode) (struct rt2x00_dev *rt2x00dev, int d1, int d2);
|
|
void (*r_calibration) (struct rt2x00_dev *rt2x00dev);
|
|
void (*rxdcoc_calibration) (struct rt2x00_dev *rt2x00dev);
|
|
+ void (*rxiq_calibration) (struct rt2x00_dev *rt2x00dev);
|
|
|
|
/*
|
|
* Data queue handlers.
|