diff options
Diffstat (limited to 'Radio/HW/BladeRF/common/thirdparty/ad936x/util.c')
-rw-r--r-- | Radio/HW/BladeRF/common/thirdparty/ad936x/util.c | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/Radio/HW/BladeRF/common/thirdparty/ad936x/util.c b/Radio/HW/BladeRF/common/thirdparty/ad936x/util.c new file mode 100644 index 0000000..8965553 --- /dev/null +++ b/Radio/HW/BladeRF/common/thirdparty/ad936x/util.c @@ -0,0 +1,347 @@ +/***************************************************************************//** + * @file util.c + * @brief Implementation of Util Driver. + * @author DBogdan (dragos.bogdan@analog.com) +******************************************************************************** + * Copyright 2013(c) Analog Devices, Inc. + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * - Neither the name of Analog Devices, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * - The use of this software may or may not infringe the patent rights + * of one or more patent holders. This license does not release you + * from the requirement that you obtain separate licenses from these + * patent holders to use this software. + * - Use of the software either in source or binary form, must be run + * on or directly connected to an Analog Devices Inc. component. + * + * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*******************************************************************************/ + +/******************************************************************************/ +/***************************** Include Files **********************************/ +/******************************************************************************/ +#include "util.h" +#include "string.h" +#include "platform.h" + +/******************************************************************************/ +/*************************** Macros Definitions *******************************/ +/******************************************************************************/ +#define BITS_PER_LONG 32 + +/***************************************************************************//** + * @brief clk_prepare_enable +*******************************************************************************/ +int32_t clk_prepare_enable(struct clk *clk) +{ + if (clk) { + // Unused variable - fix compiler warning + } + + return 0; +} + +/***************************************************************************//** + * @brief clk_get_rate +*******************************************************************************/ +uint32_t clk_get_rate(struct ad9361_rf_phy *phy, + struct refclk_scale *clk_priv) +{ + uint32_t rate = 0; + uint32_t source; + + source = clk_priv->source; + + switch (source) { + case TX_REFCLK: + case RX_REFCLK: + case BB_REFCLK: + rate = ad9361_clk_factor_recalc_rate(clk_priv, + phy->clk_refin->rate); + break; + case TX_RFPLL_INT: + case RX_RFPLL_INT: + rate = ad9361_rfpll_int_recalc_rate(clk_priv, + phy->clks[clk_priv->parent_source]->rate); + case RX_RFPLL_DUMMY: + case TX_RFPLL_DUMMY: + rate = ad9361_rfpll_dummy_recalc_rate(clk_priv); + break; + case TX_RFPLL: + case RX_RFPLL: + rate = ad9361_rfpll_recalc_rate(clk_priv); + break; + case BBPLL_CLK: + rate = ad9361_bbpll_recalc_rate(clk_priv, + phy->clks[clk_priv->parent_source]->rate); + break; + case ADC_CLK: + case R2_CLK: + case R1_CLK: + case CLKRF_CLK: + case RX_SAMPL_CLK: + case DAC_CLK: + case T2_CLK: + case T1_CLK: + case CLKTF_CLK: + case TX_SAMPL_CLK: + rate = ad9361_clk_factor_recalc_rate(clk_priv, + phy->clks[clk_priv->parent_source]->rate); + break; + default: + break; + } + + return rate; +} + +/***************************************************************************//** + * @brief clk_set_rate +*******************************************************************************/ +int32_t clk_set_rate(struct ad9361_rf_phy *phy, + struct refclk_scale *clk_priv, + uint32_t rate) +{ + uint32_t source; + int32_t i; + uint32_t round_rate; + + source = clk_priv->source; + if(phy->clks[source]->rate != rate) + { + switch (source) { + case TX_REFCLK: + case RX_REFCLK: + case BB_REFCLK: + round_rate = ad9361_clk_factor_round_rate(clk_priv, rate, + &phy->clk_refin->rate); + ad9361_clk_factor_set_rate(clk_priv, round_rate, + phy->clk_refin->rate); + phy->clks[source]->rate = ad9361_clk_factor_recalc_rate(clk_priv, + phy->clk_refin->rate); + break; + case TX_RFPLL_INT: + case RX_RFPLL_INT: + round_rate = ad9361_rfpll_int_round_rate(clk_priv, rate, + &phy->clks[clk_priv->parent_source]->rate); + ad9361_rfpll_int_set_rate(clk_priv, round_rate, + phy->clks[clk_priv->parent_source]->rate); + phy->clks[source]->rate = ad9361_rfpll_int_recalc_rate(clk_priv, + phy->clks[clk_priv->parent_source]->rate); + break; + case RX_RFPLL_DUMMY: + case TX_RFPLL_DUMMY: + ad9361_rfpll_dummy_set_rate(clk_priv, rate); + case TX_RFPLL: + case RX_RFPLL: + round_rate = ad9361_rfpll_round_rate(clk_priv, rate); + ad9361_rfpll_set_rate(clk_priv, round_rate); + phy->clks[source]->rate = ad9361_rfpll_recalc_rate(clk_priv); + break; + case BBPLL_CLK: + round_rate = ad9361_bbpll_round_rate(clk_priv, rate, + &phy->clks[clk_priv->parent_source]->rate); + ad9361_bbpll_set_rate(clk_priv, round_rate, + phy->clks[clk_priv->parent_source]->rate); + phy->clks[source]->rate = ad9361_bbpll_recalc_rate(clk_priv, + phy->clks[clk_priv->parent_source]->rate); + phy->bbpll_initialized = true; + break; + case ADC_CLK: + case R2_CLK: + case R1_CLK: + case CLKRF_CLK: + case RX_SAMPL_CLK: + case DAC_CLK: + case T2_CLK: + case T1_CLK: + case CLKTF_CLK: + case TX_SAMPL_CLK: + round_rate = ad9361_clk_factor_round_rate(clk_priv, rate, + &phy->clks[clk_priv->parent_source]->rate); + ad9361_clk_factor_set_rate(clk_priv, round_rate, + phy->clks[clk_priv->parent_source]->rate); + phy->clks[source]->rate = ad9361_clk_factor_recalc_rate(clk_priv, + phy->clks[clk_priv->parent_source]->rate); + break; + default: + break; + } + for(i = BB_REFCLK; i < BBPLL_CLK; i++) + { + phy->clks[i]->rate = ad9361_clk_factor_recalc_rate(phy->ref_clk_scale[i], + phy->clk_refin->rate); + } + phy->clks[BBPLL_CLK]->rate = ad9361_bbpll_recalc_rate(phy->ref_clk_scale[BBPLL_CLK], + phy->clks[phy->ref_clk_scale[BBPLL_CLK]->parent_source]->rate); + for(i = ADC_CLK; i < RX_RFPLL_INT; i++) + { + phy->clks[i]->rate = ad9361_clk_factor_recalc_rate(phy->ref_clk_scale[i], + phy->clks[phy->ref_clk_scale[i]->parent_source]->rate); + } + for(i = RX_RFPLL_INT; i < RX_RFPLL_DUMMY; i++) + { + phy->clks[i]->rate = ad9361_rfpll_int_recalc_rate(phy->ref_clk_scale[i], + phy->clks[phy->ref_clk_scale[i]->parent_source]->rate); + } + for(i = RX_RFPLL_DUMMY; i < RX_RFPLL; i++) + { + phy->clks[i]->rate = ad9361_rfpll_dummy_recalc_rate(phy->ref_clk_scale[i]); + } + for(i = RX_RFPLL; i < NUM_AD9361_CLKS; i++) + { + phy->clks[i]->rate = ad9361_rfpll_recalc_rate(phy->ref_clk_scale[i]); + } + } else { + if ((source == BBPLL_CLK) && !phy->bbpll_initialized) { + round_rate = ad9361_bbpll_round_rate(clk_priv, rate, + &phy->clks[clk_priv->parent_source]->rate); + ad9361_bbpll_set_rate(clk_priv, round_rate, + phy->clks[clk_priv->parent_source]->rate); + phy->clks[source]->rate = ad9361_bbpll_recalc_rate(clk_priv, + phy->clks[clk_priv->parent_source]->rate); + phy->bbpll_initialized = true; + } + } + + return 0; +} + +/***************************************************************************//** + * @brief int_sqrt +*******************************************************************************/ +uint32_t int_sqrt(uint32_t x) +{ + uint32_t b, m, y = 0; + + if (x <= 1) + return x; + + m = 1UL << (BITS_PER_LONG - 2); + while (m != 0) { + b = y + m; + y >>= 1; + + if (x >= b) { + x -= b; + y += m; + } + m >>= 2; + } + + return y; +} + +/***************************************************************************//** + * @brief ilog2 +*******************************************************************************/ +int32_t ilog2(int32_t x) +{ + int32_t A = !(!(x >> 16)); + int32_t count = 0; + int32_t x_copy = x; + + count = count + (A << 4); + + x_copy = (((~A + 1) & (x >> 16)) + (~(~A + 1) & x)); + + A = !(!(x_copy >> 8)); + count = count + (A << 3); + x_copy = (((~A + 1) & (x_copy >> 8)) + (~(~A + 1) & x_copy)); + + A = !(!(x_copy >> 4)); + count = count + (A << 2); + x_copy = (((~A + 1) & (x_copy >> 4)) + (~(~A + 1) & x_copy)); + + A = !(!(x_copy >> 2)); + count = count + (A << 1); + x_copy = (((~A + 1) & (x_copy >> 2)) + (~(~A + 1) & x_copy)); + + A = !(!(x_copy >> 1)); + count = count + A; + + return count; +} + +/***************************************************************************//** + * @brief do_div +*******************************************************************************/ +uint64_t do_div(uint64_t* n, uint64_t base) +{ + uint64_t mod = 0; + + mod = *n % base; + *n = *n / base; + + return mod; +} + +/***************************************************************************//** + * @brief find_first_bit +*******************************************************************************/ +uint32_t find_first_bit(uint32_t word) +{ + int32_t num = 0; + + if ((word & 0xffff) == 0) { + num += 16; + word >>= 16; + } + if ((word & 0xff) == 0) { + num += 8; + word >>= 8; + } + if ((word & 0xf) == 0) { + num += 4; + word >>= 4; + } + if ((word & 0x3) == 0) { + num += 2; + word >>= 2; + } + if ((word & 0x1) == 0) + num += 1; + return num; +} + +/***************************************************************************//** + * @brief ERR_PTR +*******************************************************************************/ +void * ERR_PTR(long error) +{ + uintptr_t val = error; + return (void *) val; +} + +/***************************************************************************//** + * @brief zmalloc +*******************************************************************************/ +void *zmalloc(size_t size) +{ + void *ptr = malloc(size); + if (ptr) + memset(ptr, 0, size); + mdelay(1); + + return ptr; +} |