From 06c789ed3b17b0e692d23cebae704476c682adab Mon Sep 17 00:00:00 2001 From: Ebru Akagunduz Date: Tue, 29 Oct 2013 10:08:46 +0200 Subject: Staging: winbond: Fix Sparse Warnings in phy_calibration.c This patch fixes Sparse Warnings "symbol was not declared. Should it be static?" and "defined but not used [-Wunused-function]" in phy_calibration.c Signed-off-by: Ebru Akagunduz Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/winbond/phy_calibration.c b/drivers/staging/winbond/phy_calibration.c index d970660..8aecced 100644 --- a/drivers/staging/winbond/phy_calibration.c +++ b/drivers/staging/winbond/phy_calibration.c @@ -44,7 +44,7 @@ static const s32 Angles[] = { /****************** FUNCTION DEFINITION SECTION *****************************/ -s32 _s13_to_s32(u32 data) +static s32 _s13_to_s32(u32 data) { u32 val; @@ -56,22 +56,8 @@ s32 _s13_to_s32(u32 data) return (s32) val; } -u32 _s32_to_s13(s32 data) -{ - u32 val; - - if (data > 4095) - data = 4095; - else if (data < -4096) - data = -4096; - - val = data & 0x1FFF; - - return val; -} - /****************************************************************************/ -s32 _s4_to_s32(u32 data) +static s32 _s4_to_s32(u32 data) { s32 val; @@ -83,7 +69,7 @@ s32 _s4_to_s32(u32 data) return val; } -u32 _s32_to_s4(s32 data) +static u32 _s32_to_s4(s32 data) { u32 val; @@ -98,7 +84,7 @@ u32 _s32_to_s4(s32 data) } /****************************************************************************/ -s32 _s5_to_s32(u32 data) +static s32 _s5_to_s32(u32 data) { s32 val; @@ -110,7 +96,7 @@ s32 _s5_to_s32(u32 data) return val; } -u32 _s32_to_s5(s32 data) +static u32 _s32_to_s5(s32 data) { u32 val; @@ -125,7 +111,7 @@ u32 _s32_to_s5(s32 data) } /****************************************************************************/ -s32 _s6_to_s32(u32 data) +static s32 _s6_to_s32(u32 data) { s32 val; @@ -137,7 +123,7 @@ s32 _s6_to_s32(u32 data) return val; } -u32 _s32_to_s6(s32 data) +static u32 _s32_to_s6(s32 data) { u32 val; @@ -152,34 +138,7 @@ u32 _s32_to_s6(s32 data) } /****************************************************************************/ -s32 _s9_to_s32(u32 data) -{ - s32 val; - - val = data & 0x00FF; - - if ((data & BIT(8)) != 0) - val |= 0xFFFFFF00; - - return val; -} - -u32 _s32_to_s9(s32 data) -{ - u32 val; - - if (data > 255) - data = 255; - else if (data < -256) - data = -256; - - val = data & 0x01FF; - - return val; -} - -/****************************************************************************/ -s32 _floor(s32 n) +static s32 _floor(s32 n) { if (n > 0) n += 5; @@ -195,7 +154,7 @@ s32 _floor(s32 n) * sqsum is the input and the output is sq_rt; * The maximum of sqsum = 2^27 -1; */ -u32 _sqrt(u32 sqsum) +static u32 _sqrt(u32 sqsum) { u32 sq_rt; @@ -263,7 +222,7 @@ u32 _sqrt(u32 sqsum) } /****************************************************************************/ -void _sin_cos(s32 angle, s32 *sin, s32 *cos) +static void _sin_cos(s32 angle, s32 *sin, s32 *cos) { s32 X, Y, TargetAngle, CurrAngle; unsigned Step; @@ -320,7 +279,7 @@ static unsigned char hal_set_dxx_reg(struct hw_data *pHwData, u16 number, #define hw_set_dxx_reg(_A, _B, _C) hal_set_dxx_reg(_A, _B, (u32)_C) -void _reset_rx_cal(struct hw_data *phw_data) +static void _reset_rx_cal(struct hw_data *phw_data) { u32 val; @@ -340,7 +299,7 @@ void _reset_rx_cal(struct hw_data *phw_data) /**********************************************/ -void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequency) +static void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequency) { u32 reg_agc_ctrl3; u32 reg_a_acq_ctrl; @@ -435,250 +394,8 @@ void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequen hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3); } -/****************************************************************/ -void _txidac_dc_offset_cancellation_winbond(struct hw_data *phw_data) -{ - u32 reg_agc_ctrl3; - u32 reg_mode_ctrl; - u32 reg_dc_cancel; - s32 iqcal_image_i; - s32 iqcal_image_q; - u32 sqsum; - s32 mag_0; - s32 mag_1; - s32 fix_cancel_dc_i = 0; - u32 val; - int loop; - - PHY_DEBUG(("[CAL] -> [2]_txidac_dc_offset_cancellation()\n")); - - /* a. Set to "TX calibration mode" */ - - /* 0x01 0xEE3FC2 ; 3B8FF ; Calibration (6a). enable TX IQ calibration loop circuits */ - phy_set_rf_data(phw_data, 1, (1<<24)|0xEE3FC2); - /* 0x0B 0x1905D6 ; 06417 ; Calibration (6b). enable TX I/Q cal loop squaring circuit */ - phy_set_rf_data(phw_data, 11, (11<<24)|0x1901D6); - /* 0x05 0x24C60A ; 09318 ; Calibration (6c). setting TX-VGA gain: TXGCH=2 & GPK=110 --> to be optimized */ - phy_set_rf_data(phw_data, 5, (5<<24)|0x24C48A); - /* 0x06 0x06880C ; 01A20 ; Calibration (6d). RXGCH=00; RXGCL=100 000 (RXVGA=32) --> to be optimized */ - phy_set_rf_data(phw_data, 6, (6<<24)|0x06890C); - /* 0x00 0xFDF1C0 ; 3F7C7 ; Calibration (6e). turn on IQ imbalance/Test mode */ - phy_set_rf_data(phw_data, 0, (0<<24)|0xFDF1C0); - - hw_set_dxx_reg(phw_data, 0x58, 0x30303030); /* IQ_Alpha Changed */ - - /* a. Disable AGC */ - hw_get_dxx_reg(phw_data, REG_AGC_CTRL3, ®_agc_ctrl3); - reg_agc_ctrl3 &= ~BIT(2); - reg_agc_ctrl3 |= (MASK_LNA_FIX_GAIN|MASK_AGC_FIX); - hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3); - - hw_get_dxx_reg(phw_data, REG_AGC_CTRL5, &val); - val |= MASK_AGC_FIX_GAIN; - hw_set_dxx_reg(phw_data, REG_AGC_CTRL5, val); - - /* b. set iqcal_mode[1:0] to 0x2 and set iqcal_tone[3:2] to 0 */ - hw_get_dxx_reg(phw_data, REG_MODE_CTRL, ®_mode_ctrl); - - PHY_DEBUG(("[CAL] MODE_CTRL (read) = 0x%08X\n", reg_mode_ctrl)); - reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE); - - /* mode=2, tone=0 */ - /* reg_mode_ctrl |= (MASK_CALIB_START|2); */ - - /* mode=2, tone=1 */ - /* reg_mode_ctrl |= (MASK_CALIB_START|2|(1<<2)); */ - - /* mode=2, tone=2 */ - reg_mode_ctrl |= (MASK_CALIB_START|2|(2<<2)); - hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl); - PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl)); - - hw_get_dxx_reg(phw_data, 0x5C, ®_dc_cancel); - PHY_DEBUG(("[CAL] DC_CANCEL (read) = 0x%08X\n", reg_dc_cancel)); - - for (loop = 0; loop < LOOP_TIMES; loop++) { - PHY_DEBUG(("[CAL] [%d.] ==================================\n", loop)); - - /* c. reset cancel_dc_i[9:5] and cancel_dc_q[4:0] in register DC_Cancel */ - reg_dc_cancel &= ~(0x03FF); - PHY_DEBUG(("[CAL] DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel)); - hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel); - - hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val); - PHY_DEBUG(("[CAL] CALIB_READ2 = 0x%08X\n", val)); - - iqcal_image_i = _s13_to_s32(val & 0x00001FFF); - iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13); - sqsum = iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q; - mag_0 = (s32) _sqrt(sqsum); - PHY_DEBUG(("[CAL] mag_0=%d (iqcal_image_i=%d, iqcal_image_q=%d)\n", - mag_0, iqcal_image_i, iqcal_image_q)); - - /* d. */ - reg_dc_cancel |= (1 << CANCEL_DC_I_SHIFT); - PHY_DEBUG(("[CAL] DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel)); - hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel); - - hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val); - PHY_DEBUG(("[CAL] CALIB_READ2 = 0x%08X\n", val)); - - iqcal_image_i = _s13_to_s32(val & 0x00001FFF); - iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13); - sqsum = iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q; - mag_1 = (s32) _sqrt(sqsum); - PHY_DEBUG(("[CAL] mag_1=%d (iqcal_image_i=%d, iqcal_image_q=%d)\n", - mag_1, iqcal_image_i, iqcal_image_q)); - - /* e. Calculate the correct DC offset cancellation value for I */ - if (mag_0 != mag_1) - fix_cancel_dc_i = (mag_0*10000) / (mag_0*10000 - mag_1*10000); - else { - if (mag_0 == mag_1) - PHY_DEBUG(("[CAL] ***** mag_0 = mag_1 !!\n")); - fix_cancel_dc_i = 0; - } - - PHY_DEBUG(("[CAL] ** fix_cancel_dc_i = %d (0x%04X)\n", - fix_cancel_dc_i, - _s32_to_s5(fix_cancel_dc_i))); - - if ((abs(mag_1-mag_0)*6) > mag_0) - break; - } - - if (loop >= 19) - fix_cancel_dc_i = 0; - - reg_dc_cancel &= ~(0x03FF); - reg_dc_cancel |= (_s32_to_s5(fix_cancel_dc_i) << CANCEL_DC_I_SHIFT); - hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel); - PHY_DEBUG(("[CAL] DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel)); - - /* g. */ - reg_mode_ctrl &= ~MASK_CALIB_START; - hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl); - PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl)); -} - -/*****************************************************/ -void _txqdac_dc_offset_cacellation_winbond(struct hw_data *phw_data) -{ - u32 reg_agc_ctrl3; - u32 reg_mode_ctrl; - u32 reg_dc_cancel; - s32 iqcal_image_i; - s32 iqcal_image_q; - u32 sqsum; - s32 mag_0; - s32 mag_1; - s32 fix_cancel_dc_q = 0; - u32 val; - int loop; - - PHY_DEBUG(("[CAL] -> [3]_txqdac_dc_offset_cacellation()\n")); - /*0x01 0xEE3FC2 ; 3B8FF ; Calibration (6a). enable TX IQ calibration loop circuits */ - phy_set_rf_data(phw_data, 1, (1<<24)|0xEE3FC2); - /* 0x0B 0x1905D6 ; 06417 ; Calibration (6b). enable TX I/Q cal loop squaring circuit */ - phy_set_rf_data(phw_data, 11, (11<<24)|0x1901D6); - /* 0x05 0x24C60A ; 09318 ; Calibration (6c). setting TX-VGA gain: TXGCH=2 & GPK=110 --> to be optimized */ - phy_set_rf_data(phw_data, 5, (5<<24)|0x24C48A); - /* 0x06 0x06880C ; 01A20 ; Calibration (6d). RXGCH=00; RXGCL=100 000 (RXVGA=32) --> to be optimized */ - phy_set_rf_data(phw_data, 6, (6<<24)|0x06890C); - /* 0x00 0xFDF1C0 ; 3F7C7 ; Calibration (6e). turn on IQ imbalance/Test mode */ - phy_set_rf_data(phw_data, 0, (0<<24)|0xFDF1C0); - - hw_set_dxx_reg(phw_data, 0x58, 0x30303030); /* IQ_Alpha Changed */ - - /* a. Disable AGC */ - hw_get_dxx_reg(phw_data, REG_AGC_CTRL3, ®_agc_ctrl3); - reg_agc_ctrl3 &= ~BIT(2); - reg_agc_ctrl3 |= (MASK_LNA_FIX_GAIN|MASK_AGC_FIX); - hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3); - - hw_get_dxx_reg(phw_data, REG_AGC_CTRL5, &val); - val |= MASK_AGC_FIX_GAIN; - hw_set_dxx_reg(phw_data, REG_AGC_CTRL5, val); - - /* a. set iqcal_mode[1:0] to 0x3 and set iqcal_tone[3:2] to 0 */ - hw_get_dxx_reg(phw_data, REG_MODE_CTRL, ®_mode_ctrl); - PHY_DEBUG(("[CAL] MODE_CTRL (read) = 0x%08X\n", reg_mode_ctrl)); - - /* reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE); */ - reg_mode_ctrl &= ~(MASK_IQCAL_MODE); - reg_mode_ctrl |= (MASK_CALIB_START|3); - hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl); - PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl)); - - hw_get_dxx_reg(phw_data, 0x5C, ®_dc_cancel); - PHY_DEBUG(("[CAL] DC_CANCEL (read) = 0x%08X\n", reg_dc_cancel)); - - for (loop = 0; loop < LOOP_TIMES; loop++) { - PHY_DEBUG(("[CAL] [%d.] ==================================\n", loop)); - - /* b. reset cancel_dc_q[4:0] in register DC_Cancel */ - reg_dc_cancel &= ~(0x001F); - PHY_DEBUG(("[CAL] DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel)); - hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel); - - hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val); - PHY_DEBUG(("[CAL] CALIB_READ2 = 0x%08X\n", val)); - - iqcal_image_i = _s13_to_s32(val & 0x00001FFF); - iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13); - sqsum = iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q; - mag_0 = _sqrt(sqsum); - PHY_DEBUG(("[CAL] mag_0=%d (iqcal_image_i=%d, iqcal_image_q=%d)\n", - mag_0, iqcal_image_i, iqcal_image_q)); - - /* c. */ - reg_dc_cancel |= (1 << CANCEL_DC_Q_SHIFT); - PHY_DEBUG(("[CAL] DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel)); - hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel); - - hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val); - PHY_DEBUG(("[CAL] CALIB_READ2 = 0x%08X\n", val)); - - iqcal_image_i = _s13_to_s32(val & 0x00001FFF); - iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13); - sqsum = iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q; - mag_1 = _sqrt(sqsum); - PHY_DEBUG(("[CAL] mag_1=%d (iqcal_image_i=%d, iqcal_image_q=%d)\n", - mag_1, iqcal_image_i, iqcal_image_q)); - - /* d. Calculate the correct DC offset cancellation value for I */ - if (mag_0 != mag_1) - fix_cancel_dc_q = (mag_0*10000) / (mag_0*10000 - mag_1*10000); - else { - if (mag_0 == mag_1) - PHY_DEBUG(("[CAL] ***** mag_0 = mag_1 !!\n")); - fix_cancel_dc_q = 0; - } - - PHY_DEBUG(("[CAL] ** fix_cancel_dc_q = %d (0x%04X)\n", - fix_cancel_dc_q, _s32_to_s5(fix_cancel_dc_q))); - - if ((abs(mag_1-mag_0)*6) > mag_0) - break; - } - - if (loop >= 19) - fix_cancel_dc_q = 0; - - reg_dc_cancel &= ~(0x001F); - reg_dc_cancel |= (_s32_to_s5(fix_cancel_dc_q) << CANCEL_DC_Q_SHIFT); - hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel); - PHY_DEBUG(("[CAL] DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel)); - - - /* f. */ - reg_mode_ctrl &= ~MASK_CALIB_START; - hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl); - PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl)); -} - /* 20060612.1.a 20060718.1 Modify */ -u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data, +static u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data, s32 a_2_threshold, s32 b_2_threshold) { @@ -962,7 +679,7 @@ u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data, return 1; } -void _tx_iq_calibration_winbond(struct hw_data *phw_data) +static void _tx_iq_calibration_winbond(struct hw_data *phw_data) { u32 reg_agc_ctrl3; #ifdef _DEBUG @@ -1108,7 +825,7 @@ void _tx_iq_calibration_winbond(struct hw_data *phw_data) } /*****************************************************/ -u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 frequency) +static u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 frequency) { u32 reg_mode_ctrl; s32 iqcal_tone_i; @@ -1382,7 +1099,7 @@ u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 fre /*************************************************/ /***************************************************************/ -void _rx_iq_calibration_winbond(struct hw_data *phw_data, u32 frequency) +static void _rx_iq_calibration_winbond(struct hw_data *phw_data, u32 frequency) { /* figo 20050523 marked this flag for can't compile for release */ #ifdef _DEBUG -- cgit v0.10.2