From df76de098de0118cdcf6ec0e60cb4063837f8def Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Wed, 3 Sep 2008 16:46:40 -0300 Subject: [PATCH] V4L/DVB (8598): au8522: clean up function au8522_set_if re-write this function to make it simpler Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/au8522.c | 65 ++++++++-------------------- 1 file changed, 19 insertions(+), 46 deletions(-) diff --git a/drivers/media/dvb/frontends/au8522.c b/drivers/media/dvb/frontends/au8522.c index 5741bc930792..92c8fbe0d6ca 100644 --- a/drivers/media/dvb/frontends/au8522.c +++ b/drivers/media/dvb/frontends/au8522.c @@ -304,67 +304,40 @@ static int au8522_mse2snr_lookup(struct mse2snr_tab *tab, int sz, int mse, return ret; } -/* 3.25 MHz IF Frequency table */ -static struct { - u16 reg; - u16 data; -} if_3_25_mhz_tab[] = { - { 0x80b5, 0x00 }, - { 0x80b6, 0x3d }, - { 0x80b7, 0xa0 }, -}; - -/* 4.00 MHz IF Frequency table */ -static struct { - u16 reg; - u16 data; -} if_4_mhz_tab[] = { - { 0x80b5, 0x00 }, - { 0x80b6, 0x4b }, - { 0x80b7, 0xd9 }, -}; - -/* 6.00 MHz IF Frequency table */ -static struct { - u16 reg; - u16 data; -} if_6_mhz_tab[] = { - { 0x80b5, 0xfb }, - { 0x80b6, 0x8e }, - { 0x80b7, 0x39 }, -}; - static int au8522_set_if(struct dvb_frontend *fe, enum au8522_if_freq if_freq) { struct au8522_state *state = fe->demodulator_priv; - int i; + u8 r0b5, r0b6, r0b7; + char *ifmhz; switch (if_freq) { case AU8522_IF_3_25MHZ: - dprintk("%s() 3.25 MHz\n", __func__); - for (i = 0; i < ARRAY_SIZE(if_3_25_mhz_tab); i++) - au8522_writereg(state, - if_3_25_mhz_tab[i].reg, - if_3_25_mhz_tab[i].data); + ifmhz = "3.25"; + r0b5 = 0x00; + r0b6 = 0x3d; + r0b7 = 0xa0; break; case AU8522_IF_4MHZ: - dprintk("%s() 4.00 MHz\n", __func__); - for (i = 0; i < ARRAY_SIZE(if_4_mhz_tab); i++) - au8522_writereg(state, - if_4_mhz_tab[i].reg, - if_4_mhz_tab[i].data); + ifmhz = "4.00"; + r0b5 = 0x00; + r0b6 = 0x4b; + r0b7 = 0xd9; break; case AU8522_IF_6MHZ: - dprintk("%s() 6.00 MHz\n", __func__); - for (i = 0; i < ARRAY_SIZE(if_6_mhz_tab); i++) - au8522_writereg(state, - if_6_mhz_tab[i].reg, - if_6_mhz_tab[i].data); + ifmhz = "6.00"; + r0b5 = 0xfb; + r0b6 = 0x8e; + r0b7 = 0x39; break; default: dprintk("%s() IF Frequency not supported\n", __func__); return -EINVAL; } + dprintk("%s() %s MHz\n", __func__, ifmhz); + au8522_writereg(state, 0x80b5, r0b5); + au8522_writereg(state, 0x80b6, r0b6); + au8522_writereg(state, 0x80b7, r0b7); + return 0; } -- 2.30.2