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提交 cbc85a47 编写于 作者: D Daniel Scheller 提交者： Mauro Carvalho Chehab
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[media] dvb-frontends/cxd2841er: replace IFFREQ calc macros into functions 

The way the MAKE_IFFREQ_CONFIG macros are written make it impossible to
pass regular integers for iffreq calculation, since this will cause "SSE
register return with SSE disabled" compile errors. This changes the
calculation into C functions which also might help when debugging. Also,
expand all passed frequencies from MHz to Hz scale.
Signed-off-by: NDaniel Scheller <d.scheller@gmx.net>
Acked-by: NAbylay Ospan <aospan@netup.ru>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
上级 1ecda28c
隐藏空白更改
内联 并排
Showing with 29 addition and 19 deletion
drivers/media/dvb-frontends/cxd2841er.c
浏览文件 @ cbc85a47
......@@ -201,11 +201,6 @@ static const struct cxd2841er_cnr_data s2_cn_data[] = {
{ 0x0016, 19700 }, { 0x0015, 19900 }, { 0x0014, 20000 },
};
#define MAKE_IFFREQ_CONFIG(iffreq) ((u32)(((iffreq)/41.0)*16777216.0 + 0.5))
#define MAKE_IFFREQ_CONFIG_XTAL(xtal, iffreq) ((xtal == SONY_XTAL_24000) ? \
(u32)(((iffreq)/48.0)*16777216.0 + 0.5) : \
(u32)(((iffreq)/41.0)*16777216.0 + 0.5))
static int cxd2841er_freeze_regs(struct cxd2841er_priv *priv);
static int cxd2841er_unfreeze_regs(struct cxd2841er_priv *priv);
......@@ -316,6 +311,21 @@ static int cxd2841er_set_reg_bits(struct cxd2841er_priv *priv,
return cxd2841er_write_reg(priv, addr, reg, data);
}
static u32 cxd2841er_calc_iffreq_xtal(enum cxd2841er_xtal xtal, u32 ifhz)
{
u64 tmp;
tmp = (u64) ifhz * 16777216;
do_div(tmp, ((xtal == SONY_XTAL_24000) ? 48000000 : 41000000));
return (u32) tmp;
}
static u32 cxd2841er_calc_iffreq(u32 ifhz)
{
return cxd2841er_calc_iffreq_xtal(SONY_XTAL_20500, ifhz);
}
static int cxd2841er_dvbs2_set_symbol_rate(struct cxd2841er_priv *priv,
u32 symbol_rate)
{
......@@ -2228,7 +2238,7 @@ static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef8bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 4.80);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 4800000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2256,7 +2266,7 @@ static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef7bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 4.20);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 4200000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2284,7 +2294,7 @@ static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef6bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 3.60);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 3600000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2312,7 +2322,7 @@ static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef5bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 3.60);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 3600000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2340,7 +2350,7 @@ static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef17bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 3.50);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 3500000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2439,7 +2449,7 @@ static int cxd2841er_sleep_tc_to_active_t_band(
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef8bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 4.80);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 4800000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2474,7 +2484,7 @@ static int cxd2841er_sleep_tc_to_active_t_band(
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef7bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 4.20);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 4200000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2509,7 +2519,7 @@ static int cxd2841er_sleep_tc_to_active_t_band(
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef6bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 3.60);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 3600000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2544,7 +2554,7 @@ static int cxd2841er_sleep_tc_to_active_t_band(
cxd2841er_write_regs(priv, I2C_SLVT,
0xA6, itbCoef5bw[priv->xtal], 14);
/* <IF freq setting> */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 3.60);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 3600000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2646,7 +2656,7 @@ static int cxd2841er_sleep_tc_to_active_i_band(
0xA6, itbCoef8bw[priv->xtal], 14);
/* IF freq setting */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 4.75);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 4750000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2675,7 +2685,7 @@ static int cxd2841er_sleep_tc_to_active_i_band(
0xA6, itbCoef7bw[priv->xtal], 14);
/* IF freq setting */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 4.15);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 4150000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2704,7 +2714,7 @@ static int cxd2841er_sleep_tc_to_active_i_band(
0xA6, itbCoef6bw[priv->xtal], 14);
/* IF freq setting */
iffreq = MAKE_IFFREQ_CONFIG_XTAL(priv->xtal, 3.55);
iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, 3550000);
data[0] = (u8) ((iffreq >> 16) & 0xff);
data[1] = (u8)((iffreq >> 8) & 0xff);
data[2] = (u8)(iffreq & 0xff);
......@@ -2765,13 +2775,13 @@ static int cxd2841er_sleep_tc_to_active_c_band(struct cxd2841er_priv *priv,
cxd2841er_write_regs(
priv, I2C_SLVT, 0xa6,
bw7_8mhz_b10_a6, sizeof(bw7_8mhz_b10_a6));
iffreq = MAKE_IFFREQ_CONFIG(4.9);
iffreq = cxd2841er_calc_iffreq(4900000);
break;
case 6000000:
cxd2841er_write_regs(
priv, I2C_SLVT, 0xa6,
bw6mhz_b10_a6, sizeof(bw6mhz_b10_a6));
iffreq = MAKE_IFFREQ_CONFIG(3.7);
iffreq = cxd2841er_calc_iffreq(3700000);
break;
default:
dev_err(&priv->i2c->dev, "%s(): unsupported bandwidth %d\n",
......
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