Em 06-07-2011 19:57, Jose Alberto Reguero escreveu:
> This patch add suport for the dvb-t part of CT-3650.
>
> Jose Alberto
>
> Signed-off-by: Jose Alberto Reguero <jareguero@xxxxxxxxxxxxxx>
> patches/lmml_951522_add_support_for_the_dvb_t_part_of_ct_3650_v2.patch
> Content-Type: text/plain; charset="utf-8"
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> Subject: add support for the dvb-t part of CT-3650 v2
> Date: Wed, 06 Jul 2011 22:57:04 -0000
> From: Jose Alberto Reguero <jareguero@xxxxxxxxxxxxxx>
> X-Patchwork-Id: 951522
> Message-Id: <201107070057.06317.jareguero@xxxxxxxxxxxxxx>
> To: linux-media@xxxxxxxxxxxxxxx
>
> This patch add suport for the dvb-t part of CT-3650.
>
> Jose Alberto
>
> Signed-off-by: Jose Alberto Reguero <jareguero@xxxxxxxxxxxxxx>
>
>
> diff -ur linux/drivers/media/common/tuners/tda827x.c linux.new/drivers/media/common/tuners/tda827x.c
> --- linux/drivers/media/common/tuners/tda827x.c 2010-07-03 23:22:08.000000000 +0200
> +++ linux.new/drivers/media/common/tuners/tda827x.c 2011-07-04 12:00:29.931561053 +0200
> @@ -135,14 +135,29 @@
>
> static int tuner_transfer(struct dvb_frontend *fe,
> struct i2c_msg *msg,
> - const int size)
> + int size)
> {
> int rc;
> struct tda827x_priv *priv = fe->tuner_priv;
> + struct i2c_msg msgr[2];
>
> if (fe->ops.i2c_gate_ctrl)
> fe->ops.i2c_gate_ctrl(fe, 1);
> - rc = i2c_transfer(priv->i2c_adap, msg, size);
> + if (priv->cfg->i2cr && (msg->flags == I2C_M_RD)) {
> + msgr[0].addr = msg->addr;
> + msgr[0].flags = 0;
> + msgr[0].len = msg->len - 1;
> + msgr[0].buf = msg->buf;
> + msgr[1].addr = msg->addr;
> + msgr[1].flags = I2C_M_RD;
> + msgr[1].len = 1;
> + msgr[1].buf = msg->buf;
> + size = 2;
> + rc = i2c_transfer(priv->i2c_adap, msgr, size);
> + msg->buf[msg->len - 1] = msgr[1].buf[0];
> + } else {
> + rc = i2c_transfer(priv->i2c_adap, msg, size);
> + }
> if (fe->ops.i2c_gate_ctrl)
> fe->ops.i2c_gate_ctrl(fe, 0);
No. You should be applying such fix at the I2C adapter instead. This is the
code at the ttusb2 driver:
static int ttusb2_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
static u8 obuf[60], ibuf[60];
int i,read;
if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
return -EAGAIN;
if (num > 2)
warn("more than 2 i2c messages at a time is not handled yet. TODO.");
for (i = 0; i < num; i++) {
read = i+1 < num && (msg[i+1].flags & I2C_M_RD);
obuf[0] = (msg[i].addr << 1) | read;
obuf[1] = msg[i].len;
/* read request */
if (read)
obuf[2] = msg[i+1].len;
else
obuf[2] = 0;
memcpy(&obuf[3],msg[i].buf,msg[i].len);
if (ttusb2_msg(d, CMD_I2C_XFER, obuf, msg[i].len+3, ibuf, obuf[2] + 3) < 0) {
err("i2c transfer failed.");
break;
}
if (read) {
memcpy(msg[i+1].buf,&ibuf[3],msg[i+1].len);
i++;
}
}
mutex_unlock(&d->i2c_mutex);
return i;
}
Clearly, this routine has issues, as it assumes that all transfers with reads will
be broken into just two msgs, where the first one is a write, and a second one is a
read, and that no transfers will be bigger than 2 messages.
It shouldn't be hard to adapt it to handle transfers on either way, and to remove
the limit of 2 transfers.
>
> @@ -540,7 +555,7 @@
> if_freq = 5000000;
> break;
> }
> - tuner_freq = params->frequency + if_freq;
> + tuner_freq = params->frequency;
>
> if (fe->ops.info.type == FE_QAM) {
> dprintk("%s select tda827xa_dvbc\n", __func__);
> @@ -554,6 +569,8 @@
> i++;
> }
>
> + tuner_freq += if_freq;
> +
> N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;
> buf[0] = 0; // subaddress
> buf[1] = N >> 8;
This seems to be a bug fix, but you're touching only at the DVB-C. If the table lookup
should not consider if_freq, the same fix is needed on the other similar logics at the
driver.
Also, please send such patch in separate.
> diff -ur linux/drivers/media/common/tuners/tda827x.h linux.new/drivers/media/common/tuners/tda827x.h
> --- linux/drivers/media/common/tuners/tda827x.h 2010-07-03 23:22:08.000000000 +0200
> +++ linux.new/drivers/media/common/tuners/tda827x.h 2011-05-21 22:48:31.484340005 +0200
> @@ -38,6 +38,8 @@
> int switch_addr;
>
> void (*agcf)(struct dvb_frontend *fe);
> +
> + u8 i2cr;
> };
Nack. Fix the transfer routine at the ttusb2 side.
> diff -ur linux/drivers/media/dvb/dvb-usb/ttusb2.c linux.new/drivers/media/dvb/dvb-usb/ttusb2.c
> --- linux/drivers/media/dvb/dvb-usb/ttusb2.c 2011-01-10 16:24:45.000000000 +0100
> +++ linux.new/drivers/media/dvb/dvb-usb/ttusb2.c 2011-07-05 12:35:51.842182196 +0200
> @@ -30,6 +30,7 @@
> #include "tda826x.h"
> #include "tda10086.h"
> #include "tda1002x.h"
> +#include "tda10048.h"
> #include "tda827x.h"
> #include "lnbp21.h"
>
> @@ -44,6 +45,7 @@
> struct ttusb2_state {
> u8 id;
> u16 last_rc_key;
> + struct dvb_frontend *fe;
> };
>
> static int ttusb2_msg(struct dvb_usb_device *d, u8 cmd,
> @@ -190,6 +190,22 @@
> .deltaf = 0xa511,
> };
>
> +static struct tda10048_config tda10048_config = {
> + .demod_address = 0x10 >> 1,
> + .output_mode = TDA10048_PARALLEL_OUTPUT,
> + .inversion = TDA10048_INVERSION_ON,
> + .dtv6_if_freq_khz = TDA10048_IF_4000,
> + .dtv7_if_freq_khz = TDA10048_IF_4500,
> + .dtv8_if_freq_khz = TDA10048_IF_5000,
> + .clk_freq_khz = TDA10048_CLK_16000,
> + .no_firmware = 1,
> +};
> +
> +static struct tda827x_config tda827x_config = {
> + .i2cr = 1,
> + .config = 0,
> +};
> +
> static int ttusb2_frontend_tda10086_attach(struct dvb_usb_adapter *adap)
> {
> if (usb_set_interface(adap->dev->udev,0,3) < 0)
> @@ -205,18 +221,32 @@
>
> static int ttusb2_frontend_tda10023_attach(struct dvb_usb_adapter *adap)
> {
> +
> + struct ttusb2_state *state;
> if (usb_set_interface(adap->dev->udev, 0, 3) < 0)
> err("set interface to alts=3 failed");
> + state = (struct ttusb2_state *)adap->dev->priv;
> if ((adap->fe = dvb_attach(tda10023_attach, &tda10023_config, &adap->dev->i2c_adap, 0x48)) == NULL) {
> deb_info("TDA10023 attach failed\n");
> return -ENODEV;
> }
> + adap->fe->id = 1;
> + tda10048_config.fe = adap->fe;
> + if ((state->fe = dvb_attach(tda10048_attach, &tda10048_config, &adap->dev->i2c_adap)) == NULL) {
> + deb_info("TDA10048 attach failed\n");
> + return -ENODEV;
> + }
> + dvb_register_frontend(&adap->dvb_adap, state->fe);
> + if (dvb_attach(tda827x_attach, state->fe, 0x61, &adap->dev->i2c_adap, &tda827x_config) == NULL) {
> + printk(KERN_ERR "%s: No tda827x found!\n", __func__);
> + return -ENODEV;
> + }
> return 0;
> }
>
> static int ttusb2_tuner_tda827x_attach(struct dvb_usb_adapter *adap)
> {
> - if (dvb_attach(tda827x_attach, adap->fe, 0x61, &adap->dev->i2c_adap, NULL) == NULL) {
> + if (dvb_attach(tda827x_attach, adap->fe, 0x61, &adap->dev->i2c_adap, &tda827x_config) == NULL) {
> printk(KERN_ERR "%s: No tda827x found!\n", __func__);
> return -ENODEV;
> }
> @@ -242,6 +272,19 @@
> static struct dvb_usb_device_properties ttusb2_properties_s2400;
> static struct dvb_usb_device_properties ttusb2_properties_ct3650;
>
> +static void ttusb2_usb_disconnect (struct usb_interface *intf)
> +{
> + struct dvb_usb_device *d = usb_get_intfdata (intf);
> + struct ttusb2_state * state;
> +
> + state = (struct ttusb2_state *)d->priv;
> + if (state->fe) {
> + dvb_unregister_frontend(state->fe);
> + dvb_frontend_detach(state->fe);
> + }
> + dvb_usb_device_exit (intf);
CodingStyle: don't put a space on the above. Please, always check your patches
with ./script/checkpatch.pl
> +}
> +
> static int ttusb2_probe(struct usb_interface *intf,
> const struct usb_device_id *id)
> {
> @@ -422,7 +465,7 @@
> static struct usb_driver ttusb2_driver = {
> .name = "dvb_usb_ttusb2",
> .probe = ttusb2_probe,
> - .disconnect = dvb_usb_device_exit,
> + .disconnect = ttusb2_usb_disconnect,
> .id_table = ttusb2_table,
> };
>
> diff -ur linux/drivers/media/dvb/frontends/Makefile linux.new/drivers/media/dvb/frontends/Makefile
> --- linux/drivers/media/dvb/frontends/Makefile 2011-05-06 05:45:29.000000000 +0200
> +++ linux.new/drivers/media/dvb/frontends/Makefile 2011-07-05 01:36:24.621564185 +0200
> @@ -4,6 +4,7 @@
>
> EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/
> EXTRA_CFLAGS += -Idrivers/media/common/tuners/
> +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-usb/
>
> stb0899-objs = stb0899_drv.o stb0899_algo.o
> stv0900-objs = stv0900_core.o stv0900_sw.o
> diff -ur linux/drivers/media/dvb/frontends/tda10048.c linux.new/drivers/media/dvb/frontends/tda10048.c
> --- linux/drivers/media/dvb/frontends/tda10048.c 2010-10-25 01:34:58.000000000 +0200
> +++ linux.new/drivers/media/dvb/frontends/tda10048.c 2011-07-05 01:57:47.758466025 +0200
> @@ -30,6 +30,7 @@
> #include "dvb_frontend.h"
> #include "dvb_math.h"
> #include "tda10048.h"
> +#include "dvb-usb.h"
>
> #define TDA10048_DEFAULT_FIRMWARE "dvb-fe-tda10048-1.0.fw"
> #define TDA10048_DEFAULT_FIRMWARE_SIZE 24878
> @@ -214,6 +215,8 @@
> { TDA10048_CLK_16000, TDA10048_IF_3800, 10, 3, 0 },
> { TDA10048_CLK_16000, TDA10048_IF_4000, 10, 3, 0 },
> { TDA10048_CLK_16000, TDA10048_IF_4300, 10, 3, 0 },
> + { TDA10048_CLK_16000, TDA10048_IF_4500, 5, 3, 0 },
> + { TDA10048_CLK_16000, TDA10048_IF_5000, 5, 3, 0 },
> { TDA10048_CLK_16000, TDA10048_IF_36130, 10, 3, 0 },
> };
>
> @@ -429,6 +432,19 @@
> return 0;
> }
>
> +static int tda10048_set_pll(struct dvb_frontend *fe)
> +{
> + struct tda10048_state *state = fe->demodulator_priv;
> +
> + dprintk(1, "%s()\n", __func__);
> +
> + tda10048_writereg(state, TDA10048_CONF_PLL1, 0x0f);
> + tda10048_writereg(state, TDA10048_CONF_PLL2, (u8)(state->pll_mfactor));
> + tda10048_writereg(state, TDA10048_CONF_PLL3, tda10048_readreg(state, TDA10048_CONF_PLL3) | ((u8)(state->pll_nfactor) | 0x40));
> +
> + return 0;
> +}
> +
> static int tda10048_set_if(struct dvb_frontend *fe, enum fe_bandwidth bw)
> {
> struct tda10048_state *state = fe->demodulator_priv;
> @@ -478,6 +494,9 @@
> dprintk(1, "- pll_nfactor = %d\n", state->pll_nfactor);
> dprintk(1, "- pll_pfactor = %d\n", state->pll_pfactor);
>
> + /* Set the pll registers */
> + tda10048_set_pll(fe);
> +
> /* Calculate the sample frequency */
> state->sample_freq = state->xtal_hz * (state->pll_mfactor + 45);
> state->sample_freq /= (state->pll_nfactor + 1);
> @@ -710,12 +729,16 @@
> if (config->disable_gate_access)
> return 0;
>
> - if (enable)
> - return tda10048_writereg(state, TDA10048_CONF_C4_1,
> - tda10048_readreg(state, TDA10048_CONF_C4_1) | 0x02);
> - else
> - return tda10048_writereg(state, TDA10048_CONF_C4_1,
> - tda10048_readreg(state, TDA10048_CONF_C4_1) & 0xfd);
> + if (config->fe && config->fe->ops.i2c_gate_ctrl) {
> + return config->fe->ops.i2c_gate_ctrl(config->fe, enable);
> + } else {
> + if (enable)
> + return tda10048_writereg(state, TDA10048_CONF_C4_1,
> + tda10048_readreg(state, TDA10048_CONF_C4_1) | 0x02);
> + else
> + return tda10048_writereg(state, TDA10048_CONF_C4_1,
> + tda10048_readreg(state, TDA10048_CONF_C4_1) & 0xfd);
> + }
> }
>
> static int tda10048_output_mode(struct dvb_frontend *fe, int serial)
> @@ -772,20 +795,45 @@
> return 0;
> }
>
> +static int tda10048_sleep(struct dvb_frontend *fe)
> +{
> + struct tda10048_state *state = fe->demodulator_priv;
> + struct tda10048_config *config = &state->config;
> + struct dvb_usb_adapter *adap;
> +
> + dprintk(1, "%s()\n", __func__);
> +
> + if (config->fe) {
> + adap = fe->dvb->priv;
> + if (adap->dev->props.power_ctrl)
> + adap->dev->props.power_ctrl(adap->dev, 0);
> + }
> +
> + return 0;
> +}
> +
> /* Establish sane defaults and load firmware. */
> static int tda10048_init(struct dvb_frontend *fe)
> {
> struct tda10048_state *state = fe->demodulator_priv;
> struct tda10048_config *config = &state->config;
> + struct dvb_usb_adapter *adap;
> int ret = 0, i;
>
> dprintk(1, "%s()\n", __func__);
>
> + if (config->fe) {
> + adap = fe->dvb->priv;
> + if (adap->dev->props.power_ctrl)
> + adap->dev->props.power_ctrl(adap->dev, 1);
> + }
> +
> +
> /* Apply register defaults */
> for (i = 0; i < ARRAY_SIZE(init_tab); i++)
> tda10048_writereg(state, init_tab[i].reg, init_tab[i].data);
>
> - if (state->fwloaded == 0)
> + if ((state->fwloaded == 0) && (!config->no_firmware))
> ret = tda10048_firmware_upload(fe);
>
> /* Set either serial or parallel */
> @@ -1174,6 +1222,7 @@
>
> .release = tda10048_release,
> .init = tda10048_init,
> + .sleep = tda10048_sleep,
> .i2c_gate_ctrl = tda10048_i2c_gate_ctrl,
> .set_frontend = tda10048_set_frontend,
> .get_frontend = tda10048_get_frontend,
> diff -ur linux/drivers/media/dvb/frontends/tda10048.h linux.new/drivers/media/dvb/frontends/tda10048.h
> --- linux/drivers/media/dvb/frontends/tda10048.h 2010-07-03 23:22:08.000000000 +0200
> +++ linux.new/drivers/media/dvb/frontends/tda10048.h 2011-07-05 02:02:42.775466043 +0200
> @@ -51,6 +51,7 @@
> #define TDA10048_IF_4300 4300
> #define TDA10048_IF_4500 4500
> #define TDA10048_IF_4750 4750
> +#define TDA10048_IF_5000 5000
> #define TDA10048_IF_36130 36130
> u16 dtv6_if_freq_khz;
> u16 dtv7_if_freq_khz;
> @@ -62,6 +63,10 @@
>
> /* Disable I2C gate access */
> u8 disable_gate_access;
> +
> + u8 no_firmware;
> +
> + struct dvb_frontend *fe;
> };
>
> #if defined(CONFIG_DVB_TDA10048) || \
>
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