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Date: Thu, 04 Sep 2014 12:36:13 -0300
From: Mauro Carvalho Chehab <m.chehab@...sung.com>
To: Paul Bolle <pebolle@...cali.nl>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [media] dib0090: remove manual configuration system
Hi Paul,
Em Thu, 22 May 2014 14:48:07 +0200
Paul Bolle <pebolle@...cali.nl> escreveu:
> dib0900.c has always shipped with its own, manual, configuration
> system. There a three problems with it.
>
> 1) macros that are defined, but not used:
> CONFIG_SYS_DVBT
> CONFIG_DIB0090_USE_PWM_AGC
>
> 2) checks for macros that are always true:
> CONFIG_SYS_ISDBT
> CONFIG_BAND_CBAND
> CONFIG_BAND_VHF
> CONFIG_BAND_UHF
>
> 3) checks for macros that are never defined and are always false:
> CONFIG_BAND_SBAND
> CONFIG_STANDARD_DAB
> CONFIG_STANDARD_DVBT
> CONFIG_TUNER_DIB0090_P1B_SUPPORT
> CONFIG_BAND_LBAND
>
> Remove all references to these macros, and, of course, remove the code
> hidden behind the macros that are never defined too.
IMHO, it is OK to remove the macros that are always true and
the ones that aren't used. However, I don't like the idea of
removing the other macros. This is a tuner driver that can be used
on other bands, and some day we might end implementing analog support
for the Dibcom driver or to add something that will require the code
there. So, IMHO, better to keep the code there.
Regards,
Mauro
>
> Signed-off-by: Paul Bolle <pebolle@...cali.nl>
> ---
> 0) Compile tested. I don't have the hardware.
>
> 1) This might be a bit hard to review. Should I split it in two or three
> patches?
>
> 2) dib0070.c has a reference to CONFIG_SYS_ISDBT. I'll remove it in a
> future patch.
>
> 3) If this gets accepted I might be inclined to clean up the coding
> style in a future patch. It needs cleaning up quite a bit.
>
> drivers/media/dvb-frontends/dib0090.c | 130 ----------------------------------
> 1 file changed, 130 deletions(-)
>
> diff --git a/drivers/media/dvb-frontends/dib0090.c b/drivers/media/dvb-frontends/dib0090.c
> index 3ee22ff76315..bb50fec4f475 100644
> --- a/drivers/media/dvb-frontends/dib0090.c
> +++ b/drivers/media/dvb-frontends/dib0090.c
> @@ -46,13 +46,6 @@ MODULE_PARM_DESC(debug, "turn on debugging (default: 0)");
> } \
> } while (0)
>
> -#define CONFIG_SYS_DVBT
> -#define CONFIG_SYS_ISDBT
> -#define CONFIG_BAND_CBAND
> -#define CONFIG_BAND_VHF
> -#define CONFIG_BAND_UHF
> -#define CONFIG_DIB0090_USE_PWM_AGC
> -
> #define EN_LNA0 0x8000
> #define EN_LNA1 0x4000
> #define EN_LNA2 0x2000
> @@ -1165,24 +1158,14 @@ int dib0090_gain_control(struct dvb_frontend *fe)
> state->agc_freeze = 0;
> dib0090_write_reg(state, 0x04, 0x0);
>
> -#ifdef CONFIG_BAND_SBAND
> - if (state->current_band == BAND_SBAND) {
> - dib0090_set_rframp(state, rf_ramp_sband);
> - dib0090_set_bbramp(state, bb_ramp_boost);
> - } else
> -#endif
> -#ifdef CONFIG_BAND_VHF
> if (state->current_band == BAND_VHF && !state->identity.p1g) {
> dib0090_set_rframp(state, rf_ramp_pwm_vhf);
> dib0090_set_bbramp(state, bb_ramp_pwm_normal);
> } else
> -#endif
> -#ifdef CONFIG_BAND_CBAND
> if (state->current_band == BAND_CBAND && !state->identity.p1g) {
> dib0090_set_rframp(state, rf_ramp_pwm_cband);
> dib0090_set_bbramp(state, bb_ramp_pwm_normal);
> } else
> -#endif
> if ((state->current_band == BAND_CBAND || state->current_band == BAND_VHF) && state->identity.p1g) {
> dib0090_set_rframp(state, rf_ramp_pwm_cband_7090p);
> dib0090_set_bbramp(state, bb_ramp_pwm_normal_socs);
> @@ -1220,14 +1203,12 @@ int dib0090_gain_control(struct dvb_frontend *fe)
>
> if (*tune_state == CT_AGC_STEP_0) {
> if (wbd_error < 0 && state->rf_gain_limit > 0 && !state->identity.p1g) {
> -#ifdef CONFIG_BAND_CBAND
> /* in case of CBAND tune reduce first the lt_gain2 before adjusting the RF gain */
> u8 ltg2 = (state->rf_lt_def >> 10) & 0x7;
> if (state->current_band == BAND_CBAND && ltg2) {
> ltg2 >>= 1;
> state->rf_lt_def &= ltg2 << 10; /* reduce in 3 steps from 7 to 0 */
> }
> -#endif
> } else {
> state->agc_step = 0;
> *tune_state = CT_AGC_STEP_1;
> @@ -1238,16 +1219,6 @@ int dib0090_gain_control(struct dvb_frontend *fe)
> adc = (adc * ((s32) 355774) + (((s32) 1) << 20)) >> 21; /* included in [0:-700] */
>
> adc_error = (s16) (((s32) ADC_TARGET) - adc);
> -#ifdef CONFIG_STANDARD_DAB
> - if (state->fe->dtv_property_cache.delivery_system == STANDARD_DAB)
> - adc_error -= 10;
> -#endif
> -#ifdef CONFIG_STANDARD_DVBT
> - if (state->fe->dtv_property_cache.delivery_system == STANDARD_DVBT &&
> - (state->fe->dtv_property_cache.modulation == QAM_64 || state->fe->dtv_property_cache.modulation == QAM_16))
> - adc_error += 60;
> -#endif
> -#ifdef CONFIG_SYS_ISDBT
> if ((state->fe->dtv_property_cache.delivery_system == SYS_ISDBT) && (((state->fe->dtv_property_cache.layer[0].segment_count >
> 0)
> &&
> @@ -1274,17 +1245,9 @@ int dib0090_gain_control(struct dvb_frontend *fe)
> )
> )
> adc_error += 60;
> -#endif
>
> if (*tune_state == CT_AGC_STEP_1) { /* quickly go to the correct range of the ADC power */
> if (ABS(adc_error) < 50 || state->agc_step++ > 5) {
> -
> -#ifdef CONFIG_STANDARD_DAB
> - if (state->fe->dtv_property_cache.delivery_system == STANDARD_DAB) {
> - dib0090_write_reg(state, 0x02, (1 << 15) | (15 << 11) | (31 << 6) | (63)); /* cap value = 63 : narrow BB filter : Fc = 1.8MHz */
> - dib0090_write_reg(state, 0x04, 0x0);
> - } else
> -#endif
> {
> dib0090_write_reg(state, 0x02, (1 << 15) | (3 << 11) | (6 << 6) | (32));
> dib0090_write_reg(state, 0x04, 0x01); /*0 = 1KHz ; 1 = 150Hz ; 2 = 50Hz ; 3 = 50KHz ; 4 = servo fast */
> @@ -1554,11 +1517,6 @@ static int dib0090_reset(struct dvb_frontend *fe)
> if (dib0090_identify(fe) < 0)
> return -EIO;
>
> -#ifdef CONFIG_TUNER_DIB0090_P1B_SUPPORT
> - if (!(state->identity.version & 0x1)) /* it is P1B - reset is already done */
> - return 0;
> -#endif
> -
> if (!state->identity.in_soc) {
> if ((dib0090_read_reg(state, 0x1a) >> 5) & 0x2)
> dib0090_write_reg(state, 0x1b, (EN_IQADC | EN_BB | EN_BIAS | EN_DIGCLK | EN_PLL | EN_CRYSTAL));
> @@ -1788,10 +1746,6 @@ static int dib0090_wbd_calibration(struct dib0090_state *state, enum frontend_tu
> wbd_gain = wbd->wbd_gain;
> else {
> wbd_gain = 4;
> -#if defined(CONFIG_BAND_LBAND) || defined(CONFIG_BAND_SBAND)
> - if ((state->current_band == BAND_LBAND) || (state->current_band == BAND_SBAND))
> - wbd_gain = 2;
> -#endif
> }
>
> if (wbd_gain == state->wbd_calibration_gain) { /* the WBD calibration has already been done */
> @@ -1849,7 +1803,6 @@ static void dib0090_set_bandwidth(struct dib0090_state *state)
> }
>
> static const struct dib0090_pll dib0090_pll_table[] = {
> -#ifdef CONFIG_BAND_CBAND
> {56000, 0, 9, 48, 6},
> {70000, 1, 9, 48, 6},
> {87000, 0, 8, 32, 4},
> @@ -1857,93 +1810,49 @@ static const struct dib0090_pll dib0090_pll_table[] = {
> {115000, 0, 7, 24, 6},
> {140000, 1, 7, 24, 6},
> {170000, 0, 6, 16, 4},
> -#endif
> -#ifdef CONFIG_BAND_VHF
> {200000, 1, 6, 16, 4},
> {230000, 0, 5, 12, 6},
> {280000, 1, 5, 12, 6},
> {340000, 0, 4, 8, 4},
> {380000, 1, 4, 8, 4},
> {450000, 0, 3, 6, 6},
> -#endif
> -#ifdef CONFIG_BAND_UHF
> {580000, 1, 3, 6, 6},
> {700000, 0, 2, 4, 4},
> {860000, 1, 2, 4, 4},
> -#endif
> -#ifdef CONFIG_BAND_LBAND
> - {1800000, 1, 0, 2, 4},
> -#endif
> -#ifdef CONFIG_BAND_SBAND
> - {2900000, 0, 14, 1, 4},
> -#endif
> };
>
> static const struct dib0090_tuning dib0090_tuning_table_fm_vhf_on_cband[] = {
>
> -#ifdef CONFIG_BAND_CBAND
> {184000, 4, 1, 15, 0x280, 0x2912, 0xb94e, EN_CAB},
> {227000, 4, 3, 15, 0x280, 0x2912, 0xb94e, EN_CAB},
> {380000, 4, 7, 15, 0x280, 0x2912, 0xb94e, EN_CAB},
> -#endif
> -#ifdef CONFIG_BAND_UHF
> {520000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {550000, 2, 2, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {650000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {750000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {850000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> -#endif
> -#ifdef CONFIG_BAND_LBAND
> - {1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> - {1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> - {1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> -#endif
> -#ifdef CONFIG_BAND_SBAND
> - {2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD},
> - {2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD},
> -#endif
> };
>
> static const struct dib0090_tuning dib0090_tuning_table[] = {
>
> -#ifdef CONFIG_BAND_CBAND
> {170000, 4, 1, 15, 0x280, 0x2912, 0xb94e, EN_CAB},
> -#endif
> -#ifdef CONFIG_BAND_VHF
> {184000, 1, 1, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
> {227000, 1, 3, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
> {380000, 1, 7, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
> -#endif
> -#ifdef CONFIG_BAND_UHF
> {520000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {550000, 2, 2, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {650000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {750000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {850000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> -#endif
> -#ifdef CONFIG_BAND_LBAND
> - {1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> - {1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> - {1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> -#endif
> -#ifdef CONFIG_BAND_SBAND
> - {2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD},
> - {2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD},
> -#endif
> };
>
> static const struct dib0090_tuning dib0090_p1g_tuning_table[] = {
> -#ifdef CONFIG_BAND_CBAND
> {170000, 4, 1, 0x820f, 0x300, 0x2d22, 0x82cb, EN_CAB},
> -#endif
> -#ifdef CONFIG_BAND_VHF
> {184000, 1, 1, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
> {227000, 1, 3, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
> {380000, 1, 7, 15, 0x300, 0x4d12, 0xb94e, EN_VHF},
> -#endif
> -#ifdef CONFIG_BAND_UHF
> {510000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {540000, 2, 1, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {600000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> @@ -1951,20 +1860,9 @@ static const struct dib0090_tuning dib0090_p1g_tuning_table[] = {
> {680000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {720000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> -#endif
> -#ifdef CONFIG_BAND_LBAND
> - {1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> - {1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> - {1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> -#endif
> -#ifdef CONFIG_BAND_SBAND
> - {2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD},
> - {2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD},
> -#endif
> };
>
> static const struct dib0090_pll dib0090_p1g_pll_table[] = {
> -#ifdef CONFIG_BAND_CBAND
> {57000, 0, 11, 48, 6},
> {70000, 1, 11, 48, 6},
> {86000, 0, 10, 32, 4},
> @@ -1972,71 +1870,43 @@ static const struct dib0090_pll dib0090_p1g_pll_table[] = {
> {115000, 0, 9, 24, 6},
> {140000, 1, 9, 24, 6},
> {170000, 0, 8, 16, 4},
> -#endif
> -#ifdef CONFIG_BAND_VHF
> {200000, 1, 8, 16, 4},
> {230000, 0, 7, 12, 6},
> {280000, 1, 7, 12, 6},
> {340000, 0, 6, 8, 4},
> {380000, 1, 6, 8, 4},
> {455000, 0, 5, 6, 6},
> -#endif
> -#ifdef CONFIG_BAND_UHF
> {580000, 1, 5, 6, 6},
> {680000, 0, 4, 4, 4},
> {860000, 1, 4, 4, 4},
> -#endif
> -#ifdef CONFIG_BAND_LBAND
> - {1800000, 1, 2, 2, 4},
> -#endif
> -#ifdef CONFIG_BAND_SBAND
> - {2900000, 0, 1, 1, 6},
> -#endif
> };
>
> static const struct dib0090_tuning dib0090_p1g_tuning_table_fm_vhf_on_cband[] = {
> -#ifdef CONFIG_BAND_CBAND
> {184000, 4, 3, 0x4187, 0x2c0, 0x2d22, 0x81cb, EN_CAB},
> {227000, 4, 3, 0x4187, 0x2c0, 0x2d22, 0x81cb, EN_CAB},
> {380000, 4, 3, 0x4187, 0x2c0, 0x2d22, 0x81cb, EN_CAB},
> -#endif
> -#ifdef CONFIG_BAND_UHF
> {520000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {550000, 2, 2, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {650000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {750000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {850000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> {900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF},
> -#endif
> -#ifdef CONFIG_BAND_LBAND
> - {1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> - {1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> - {1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD},
> -#endif
> -#ifdef CONFIG_BAND_SBAND
> - {2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD},
> - {2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD},
> -#endif
> };
>
> static const struct dib0090_tuning dib0090_tuning_table_cband_7090[] = {
> -#ifdef CONFIG_BAND_CBAND
> {300000, 4, 3, 0x018F, 0x2c0, 0x2d22, 0xb9ce, EN_CAB},
> {380000, 4, 10, 0x018F, 0x2c0, 0x2d22, 0xb9ce, EN_CAB},
> {570000, 4, 10, 0x8190, 0x2c0, 0x2d22, 0xb9ce, EN_CAB},
> {858000, 4, 5, 0x8190, 0x2c0, 0x2d22, 0xb9ce, EN_CAB},
> -#endif
> };
>
> static const struct dib0090_tuning dib0090_tuning_table_cband_7090e_sensitivity[] = {
> -#ifdef CONFIG_BAND_CBAND
> { 300000, 0 , 3, 0x8105, 0x2c0, 0x2d12, 0xb84e, EN_CAB },
> { 380000, 0 , 10, 0x810F, 0x2c0, 0x2d12, 0xb84e, EN_CAB },
> { 600000, 0 , 10, 0x815E, 0x280, 0x2d12, 0xb84e, EN_CAB },
> { 660000, 0 , 5, 0x85E3, 0x280, 0x2d12, 0xb84e, EN_CAB },
> { 720000, 0 , 5, 0x852E, 0x280, 0x2d12, 0xb84e, EN_CAB },
> { 860000, 0 , 4, 0x85E5, 0x280, 0x2d12, 0xb84e, EN_CAB },
> -#endif
> };
>
> int dib0090_update_tuning_table_7090(struct dvb_frontend *fe,
--
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