From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:46831 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751860AbaIWMqE (ORCPT ); Tue, 23 Sep 2014 08:46:04 -0400 Message-ID: <54216B88.7000300@iki.fi> Date: Tue, 23 Sep 2014 15:46:00 +0300 From: Antti Palosaari MIME-Version: 1.0 To: Olli Salonen , linux-media@vger.kernel.org Subject: Re: [PATCH 3/3] af9035: Add support for IT930x USB bridge References: <1411296799-3525-1-git-send-email-olli.salonen@iki.fi> <1411296799-3525-4-git-send-email-olli.salonen@iki.fi> In-Reply-To: <1411296799-3525-4-git-send-email-olli.salonen@iki.fi> Content-Type: text/plain; charset=iso-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Acked-by: Antti Palosaari Reviewed-by: Antti Palosaari Changes were a bit complicated, but I understood those in general and there is nothing wrong for my eyes. Mostly I was surprised of new implementation of init() (init is mainly for configuring TS interfaces). Also I2C adapter xfer goes pretty complex, but that is because there is actually 3 I2C adapters and some of those even offer multiple access methods by firmware. Maybe there is also room for later improvement. But as I said, patch it is OK. regards Antti On 09/21/2014 01:53 PM, Olli Salonen wrote: > Add support for IT930x USB bridge and IT9303 reference design. > > It is a DVB-T/T2/C tuner with the following components: > - IT9303 USB bridge > - Si2168-B40 demodulator > - Si2147-A30 tuner > > The IT9303 requires firmware that can be downloaded here: > http://trsqr.net/olli/linux/firmwares/it930x/ > > The Si2168-B40 requires firmware, but the one that is used by PCTV 292e can be used. > http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-B40/ > > The Si2147-A30 tuner does not require firmware loading. > > Cc: crope@iki.fi > Signed-off-by: Olli Salonen > --- > drivers/media/dvb-core/dvb-usb-ids.h | 1 + > drivers/media/usb/dvb-usb-v2/af9035.c | 324 ++++++++++++++++++++++++++++++++-- > drivers/media/usb/dvb-usb-v2/af9035.h | 6 + > 3 files changed, 314 insertions(+), 17 deletions(-) > > diff --git a/drivers/media/dvb-core/dvb-usb-ids.h b/drivers/media/dvb-core/dvb-usb-ids.h > index d484a51..e07a84e 100644 > --- a/drivers/media/dvb-core/dvb-usb-ids.h > +++ b/drivers/media/dvb-core/dvb-usb-ids.h > @@ -144,6 +144,7 @@ > #define USB_PID_ITETECH_IT9135 0x9135 > #define USB_PID_ITETECH_IT9135_9005 0x9005 > #define USB_PID_ITETECH_IT9135_9006 0x9006 > +#define USB_PID_ITETECH_IT9303 0x9306 > #define USB_PID_KWORLD_399U 0xe399 > #define USB_PID_KWORLD_399U_2 0xe400 > #define USB_PID_KWORLD_395U 0xe396 > diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c > index c50d27d..00758c8 100644 > --- a/drivers/media/usb/dvb-usb-v2/af9035.c > +++ b/drivers/media/usb/dvb-usb-v2/af9035.c > @@ -290,7 +290,7 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap, > return -EAGAIN; > > /* > - * I2C sub header is 5 bytes long. Meaning of those bytes are: > + * AF9035 I2C sub header is 5 bytes long. Meaning of those bytes are: > * 0: data len > * 1: I2C addr << 1 > * 2: reg addr len > @@ -317,6 +317,12 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap, > * bus. I2C subsystem does not allow register multiple devices to same > * bus, having same slave address. Due to that we reuse demod address, > * shifted by one bit, on that case. > + * > + * For IT930x we use a different command and the sub header is > + * different as well: > + * 0: data len > + * 1: I2C bus (0x03 seems to be only value used) > + * 2: I2C addr << 1 > */ > #define AF9035_IS_I2C_XFER_WRITE_READ(_msg, _num) \ > (_num == 2 && !(_msg[0].flags & I2C_M_RD) && (_msg[1].flags & I2C_M_RD)) > @@ -348,13 +354,24 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap, > struct usb_req req = { CMD_I2C_RD, 0, 5 + msg[0].len, > buf, msg[1].len, msg[1].buf }; > > + if (state->chip_type == 0x9306) { > + req.cmd = CMD_GENERIC_I2C_RD; > + req.wlen = 3 + msg[0].len; > + } > req.mbox |= ((msg[0].addr & 0x80) >> 3); > + > buf[0] = msg[1].len; > - buf[1] = msg[0].addr << 1; > - buf[2] = 0x00; /* reg addr len */ > - buf[3] = 0x00; /* reg addr MSB */ > - buf[4] = 0x00; /* reg addr LSB */ > - memcpy(&buf[5], msg[0].buf, msg[0].len); > + if (state->chip_type == 0x9306) { > + buf[1] = 0x03; /* I2C bus */ > + buf[2] = msg[0].addr << 1; > + memcpy(&buf[3], msg[0].buf, msg[0].len); > + } else { > + buf[1] = msg[0].addr << 1; > + buf[2] = 0x00; /* reg addr len */ > + buf[3] = 0x00; /* reg addr MSB */ > + buf[4] = 0x00; /* reg addr LSB */ > + memcpy(&buf[5], msg[0].buf, msg[0].len); > + } > ret = af9035_ctrl_msg(d, &req); > } > } else if (AF9035_IS_I2C_XFER_WRITE(msg, num)) { > @@ -380,13 +397,24 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap, > struct usb_req req = { CMD_I2C_WR, 0, 5 + msg[0].len, > buf, 0, NULL }; > > + if (state->chip_type == 0x9306) { > + req.cmd = CMD_GENERIC_I2C_WR; > + req.wlen = 3 + msg[0].len; > + } > + > req.mbox |= ((msg[0].addr & 0x80) >> 3); > buf[0] = msg[0].len; > - buf[1] = msg[0].addr << 1; > - buf[2] = 0x00; /* reg addr len */ > - buf[3] = 0x00; /* reg addr MSB */ > - buf[4] = 0x00; /* reg addr LSB */ > - memcpy(&buf[5], msg[0].buf, msg[0].len); > + if (state->chip_type == 0x9306) { > + buf[1] = 0x03; /* I2C bus */ > + buf[2] = msg[0].addr << 1; > + memcpy(&buf[3], msg[0].buf, msg[0].len); > + } else { > + buf[1] = msg[0].addr << 1; > + buf[2] = 0x00; /* reg addr len */ > + buf[3] = 0x00; /* reg addr MSB */ > + buf[4] = 0x00; /* reg addr LSB */ > + memcpy(&buf[5], msg[0].buf, msg[0].len); > + } > ret = af9035_ctrl_msg(d, &req); > } > } else if (AF9035_IS_I2C_XFER_READ(msg, num)) { > @@ -397,13 +425,23 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap, > /* I2C read */ > u8 buf[5]; > struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf), > - buf, msg[0].len, msg[0].buf }; > + buf, msg[0].len, msg[0].buf }; > + > + if (state->chip_type == 0x9306) { > + req.cmd = CMD_GENERIC_I2C_RD; > + req.wlen = 3; > + } > req.mbox |= ((msg[0].addr & 0x80) >> 3); > buf[0] = msg[0].len; > - buf[1] = msg[0].addr << 1; > - buf[2] = 0x00; /* reg addr len */ > - buf[3] = 0x00; /* reg addr MSB */ > - buf[4] = 0x00; /* reg addr LSB */ > + if (state->chip_type == 0x9306) { > + buf[1] = 0x03; /* I2C bus */ > + buf[2] = msg[0].addr << 1; > + } else { > + buf[1] = msg[0].addr << 1; > + buf[2] = 0x00; /* reg addr len */ > + buf[3] = 0x00; /* reg addr MSB */ > + buf[4] = 0x00; /* reg addr LSB */ > + } > ret = af9035_ctrl_msg(d, &req); > } > } else { > @@ -465,6 +503,9 @@ static int af9035_identify_state(struct dvb_usb_device *d, const char **name) > else > *name = AF9035_FIRMWARE_IT9135_V1; > state->eeprom_addr = EEPROM_BASE_IT9135; > + } else if (state->chip_type == 0x9306) { > + *name = AF9035_FIRMWARE_IT9303; > + state->eeprom_addr = EEPROM_BASE_IT9135; > } else { > *name = AF9035_FIRMWARE_AF9035; > state->eeprom_addr = EEPROM_BASE_AF9035; > @@ -674,7 +715,8 @@ static int af9035_download_firmware(struct dvb_usb_device *d, > if (!tmp) > tmp = 0x3a; > > - if (state->chip_type == 0x9135) { > + if ((state->chip_type == 0x9135) || > + (state->chip_type == 0x9306)) { > ret = af9035_wr_reg(d, 0x004bfb, tmp); > if (ret < 0) > goto err; > @@ -766,8 +808,16 @@ static int af9035_read_config(struct dvb_usb_device *d) > dev_dbg(&d->udev->dev, "%s: no eeprom\n", __func__); > goto skip_eeprom; > } > + } else if (state->chip_type == 0x9306) { > + /* > + * IT930x is an USB bridge, only single demod-single tuner > + * configurations seen so far. > + */ > + return 0; > } > > + > + > /* check if there is dual tuners */ > ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp); > if (ret < 0) > @@ -1111,6 +1161,41 @@ err: > return ret; > } > > +static int it930x_frontend_attach(struct dvb_usb_adapter *adap) > +{ > + struct state *state = adap_to_priv(adap); > + struct dvb_usb_device *d = adap_to_d(adap); > + int ret; > + struct si2168_config si2168_config; > + struct i2c_adapter *adapter; > + > + dev_dbg(&d->udev->dev, "adap->id=%d\n", adap->id); > + > + si2168_config.i2c_adapter = &adapter; > + si2168_config.fe = &adap->fe[0]; > + si2168_config.ts_mode = SI2168_TS_SERIAL; > + > + state->af9033_config[adap->id].fe = &adap->fe[0]; > + state->af9033_config[adap->id].ops = &state->ops; > + ret = af9035_add_i2c_dev(d, "si2168", 0x67, &si2168_config, > + &d->i2c_adap); > + if (ret) > + goto err; > + > + if (adap->fe[0] == NULL) { > + ret = -ENODEV; > + goto err; > + } > + state->i2c_adapter_demod = adapter; > + > + return 0; > + > +err: > + dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); > + > + return ret; > +} > + > static int af9035_frontend_detach(struct dvb_usb_adapter *adap) > { > struct state *state = adap_to_priv(adap); > @@ -1430,6 +1515,93 @@ err: > return ret; > } > > +static int it930x_tuner_attach(struct dvb_usb_adapter *adap) > +{ > + struct state *state = adap_to_priv(adap); > + struct dvb_usb_device *d = adap_to_d(adap); > + int ret; > + struct si2157_config si2157_config; > + > + dev_dbg(&d->udev->dev, "%s: adap->id=%d\n", __func__, adap->id); > + > + /* I2C master bus 2 clock speed 300k */ > + ret = af9035_wr_reg(d, 0x00f6a7, 0x07); > + if (ret < 0) > + goto err; > + > + /* I2C master bus 1,3 clock speed 300k */ > + ret = af9035_wr_reg(d, 0x00f103, 0x07); > + if (ret < 0) > + goto err; > + > + /* set gpio11 low */ > + ret = af9035_wr_reg_mask(d, 0xd8d4, 0x01, 0x01); > + if (ret < 0) > + goto err; > + > + ret = af9035_wr_reg_mask(d, 0xd8d5, 0x01, 0x01); > + if (ret < 0) > + goto err; > + > + ret = af9035_wr_reg_mask(d, 0xd8d3, 0x01, 0x01); > + if (ret < 0) > + goto err; > + > + /* Tuner enable using gpiot2_en, gpiot2_on and gpiot2_o (reset) */ > + ret = af9035_wr_reg_mask(d, 0xd8b8, 0x01, 0x01); > + if (ret < 0) > + goto err; > + > + ret = af9035_wr_reg_mask(d, 0xd8b9, 0x01, 0x01); > + if (ret < 0) > + goto err; > + > + ret = af9035_wr_reg_mask(d, 0xd8b7, 0x00, 0x01); > + if (ret < 0) > + goto err; > + > + msleep(200); > + > + ret = af9035_wr_reg_mask(d, 0xd8b7, 0x01, 0x01); > + if (ret < 0) > + goto err; > + > + memset(&si2157_config, 0, sizeof(si2157_config)); > + si2157_config.fe = adap->fe[0]; > + ret = af9035_add_i2c_dev(d, "si2157", 0x63, > + &si2157_config, state->i2c_adapter_demod); > + > + if (ret) > + goto err; > + > + return 0; > + > +err: > + dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); > + > + return ret; > +} > + > + > +static int it930x_tuner_detach(struct dvb_usb_adapter *adap) > +{ > + struct state *state = adap_to_priv(adap); > + struct dvb_usb_device *d = adap_to_d(adap); > + > + dev_dbg(&d->udev->dev, "adap->id=%d\n", adap->id); > + > + if (adap->id == 1) { > + if (state->i2c_client[3]) > + af9035_del_i2c_dev(d); > + } else if (adap->id == 0) { > + if (state->i2c_client[1]) > + af9035_del_i2c_dev(d); > + } > + > + return 0; > +} > + > + > static int af9035_tuner_detach(struct dvb_usb_adapter *adap) > { > struct state *state = adap_to_priv(adap); > @@ -1503,6 +1675,89 @@ err: > return ret; > } > > +static int it930x_init(struct dvb_usb_device *d) > +{ > + struct state *state = d_to_priv(d); > + int ret, i; > + u16 frame_size = (d->udev->speed == USB_SPEED_FULL ? 5 : 816) * 188 / 4; > + u8 packet_size = (d->udev->speed == USB_SPEED_FULL ? 64 : 512) / 4; > + struct reg_val_mask tab[] = { > + { 0x00da1a, 0x00, 0x01 }, /* ignore_sync_byte */ > + { 0x00f41f, 0x04, 0x04 }, /* dvbt_inten */ > + { 0x00da10, 0x00, 0x01 }, /* mpeg_full_speed */ > + { 0x00f41a, 0x01, 0x01 }, /* dvbt_en */ > + { 0x00da1d, 0x01, 0x01 }, /* mp2_sw_rst, reset EP4 */ > + { 0x00dd11, 0x00, 0x20 }, /* ep4_tx_en, disable EP4 */ > + { 0x00dd13, 0x00, 0x20 }, /* ep4_tx_nak, disable EP4 NAK */ > + { 0x00dd11, 0x20, 0x20 }, /* ep4_tx_en, enable EP4 */ > + { 0x00dd11, 0x00, 0x40 }, /* ep5_tx_en, disable EP5 */ > + { 0x00dd13, 0x00, 0x40 }, /* ep5_tx_nak, disable EP5 NAK */ > + { 0x00dd11, state->dual_mode << 6, 0x40 }, /* enable EP5 */ > + { 0x00dd88, (frame_size >> 0) & 0xff, 0xff}, > + { 0x00dd89, (frame_size >> 8) & 0xff, 0xff}, > + { 0x00dd0c, packet_size, 0xff}, > + { 0x00dd8a, (frame_size >> 0) & 0xff, 0xff}, > + { 0x00dd8b, (frame_size >> 8) & 0xff, 0xff}, > + { 0x00dd0d, packet_size, 0xff }, > + { 0x00da1d, 0x00, 0x01 }, /* mp2_sw_rst, disable */ > + { 0x00d833, 0x01, 0xff }, /* slew rate ctrl: slew rate boosts */ > + { 0x00d830, 0x00, 0xff }, /* Bit 0 of output driving control */ > + { 0x00d831, 0x01, 0xff }, /* Bit 1 of output driving control */ > + { 0x00d832, 0x00, 0xff }, /* Bit 2 of output driving control */ > + > + /* suspend gpio1 for TS-C */ > + { 0x00d8b0, 0x01, 0xff }, /* gpio1 */ > + { 0x00d8b1, 0x01, 0xff }, /* gpio1 */ > + { 0x00d8af, 0x00, 0xff }, /* gpio1 */ > + > + /* suspend gpio7 for TS-D */ > + { 0x00d8c4, 0x01, 0xff }, /* gpio7 */ > + { 0x00d8c5, 0x01, 0xff }, /* gpio7 */ > + { 0x00d8c3, 0x00, 0xff }, /* gpio7 */ > + > + /* suspend gpio13 for TS-B */ > + { 0x00d8dc, 0x01, 0xff }, /* gpio13 */ > + { 0x00d8dd, 0x01, 0xff }, /* gpio13 */ > + { 0x00d8db, 0x00, 0xff }, /* gpio13 */ > + > + /* suspend gpio14 for TS-E */ > + { 0x00d8e4, 0x01, 0xff }, /* gpio14 */ > + { 0x00d8e5, 0x01, 0xff }, /* gpio14 */ > + { 0x00d8e3, 0x00, 0xff }, /* gpio14 */ > + > + /* suspend gpio15 for TS-A */ > + { 0x00d8e8, 0x01, 0xff }, /* gpio15 */ > + { 0x00d8e9, 0x01, 0xff }, /* gpio15 */ > + { 0x00d8e7, 0x00, 0xff }, /* gpio15 */ > + > + { 0x00da58, 0x00, 0x01 }, /* ts_in_src, serial */ > + { 0x00da73, 0x01, 0xff }, /* ts0_aggre_mode */ > + { 0x00da78, 0x47, 0xff }, /* ts0_sync_byte */ > + { 0x00da4c, 0x01, 0xff }, /* ts0_en */ > + { 0x00da5a, 0x1f, 0xff }, /* ts_fail_ignore */ > + }; > + > + dev_dbg(&d->udev->dev, > + "%s: USB speed=%d frame_size=%04x packet_size=%02x\n", > + __func__, d->udev->speed, frame_size, packet_size); > + > + /* init endpoints */ > + for (i = 0; i < ARRAY_SIZE(tab); i++) { > + ret = af9035_wr_reg_mask(d, tab[i].reg, > + tab[i].val, tab[i].mask); > + > + if (ret < 0) > + goto err; > + } > + > + return 0; > +err: > + dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); > + > + return ret; > +} > + > + > #if IS_ENABLED(CONFIG_RC_CORE) > static int af9035_rc_query(struct dvb_usb_device *d) > { > @@ -1706,6 +1961,37 @@ static const struct dvb_usb_device_properties af9035_props = { > }, > }; > > +static const struct dvb_usb_device_properties it930x_props = { > + .driver_name = KBUILD_MODNAME, > + .owner = THIS_MODULE, > + .adapter_nr = adapter_nr, > + .size_of_priv = sizeof(struct state), > + > + .generic_bulk_ctrl_endpoint = 0x02, > + .generic_bulk_ctrl_endpoint_response = 0x81, > + > + .identify_state = af9035_identify_state, > + .download_firmware = af9035_download_firmware, > + > + .i2c_algo = &af9035_i2c_algo, > + .read_config = af9035_read_config, > + .frontend_attach = it930x_frontend_attach, > + .frontend_detach = af9035_frontend_detach, > + .tuner_attach = it930x_tuner_attach, > + .tuner_detach = it930x_tuner_detach, > + .init = it930x_init, > + .get_stream_config = af9035_get_stream_config, > + > + .get_adapter_count = af9035_get_adapter_count, > + .adapter = { > + { > + .stream = DVB_USB_STREAM_BULK(0x84, 4, 816 * 188), > + }, { > + .stream = DVB_USB_STREAM_BULK(0x85, 4, 816 * 188), > + }, > + }, > +}; > + > static const struct usb_device_id af9035_id_table[] = { > /* AF9035 devices */ > { DVB_USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9035_9035, > @@ -1759,6 +2045,9 @@ static const struct usb_device_id af9035_id_table[] = { > { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2, > &af9035_props, "Digital Dual TV Receiver CTVDIGDUAL_V2", > RC_MAP_IT913X_V1) }, > + /* IT930x devices */ > + { DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303, > + &it930x_props, "ITE 9303 Generic", NULL) }, > /* XXX: that same ID [0ccd:0099] is used by af9015 driver too */ > { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x0099, > &af9035_props, "TerraTec Cinergy T Stick Dual RC (rev. 2)", > @@ -1795,3 +2084,4 @@ MODULE_LICENSE("GPL"); > MODULE_FIRMWARE(AF9035_FIRMWARE_AF9035); > MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V1); > MODULE_FIRMWARE(AF9035_FIRMWARE_IT9135_V2); > +MODULE_FIRMWARE(AF9035_FIRMWARE_IT9303); > diff --git a/drivers/media/usb/dvb-usb-v2/af9035.h b/drivers/media/usb/dvb-usb-v2/af9035.h > index edb3871..416a97f 100644 > --- a/drivers/media/usb/dvb-usb-v2/af9035.h > +++ b/drivers/media/usb/dvb-usb-v2/af9035.h > @@ -31,6 +31,8 @@ > #include "tda18218.h" > #include "fc2580.h" > #include "it913x.h" > +#include "si2168.h" > +#include "si2157.h" > > struct reg_val { > u32 reg; > @@ -66,6 +68,7 @@ struct state { > struct af9033_ops ops; > #define AF9035_I2C_CLIENT_MAX 4 > struct i2c_client *i2c_client[AF9035_I2C_CLIENT_MAX]; > + struct i2c_adapter *i2c_adapter_demod; > }; > > static const u32 clock_lut_af9035[] = { > @@ -99,6 +102,7 @@ static const u32 clock_lut_it9135[] = { > #define AF9035_FIRMWARE_AF9035 "dvb-usb-af9035-02.fw" > #define AF9035_FIRMWARE_IT9135_V1 "dvb-usb-it9135-01.fw" > #define AF9035_FIRMWARE_IT9135_V2 "dvb-usb-it9135-02.fw" > +#define AF9035_FIRMWARE_IT9303 "dvb-usb-it9303-01.fw" > > /* > * eeprom is memory mapped as read only. Writing that memory mapped address > @@ -140,5 +144,7 @@ static const u32 clock_lut_it9135[] = { > #define CMD_FW_DL_BEGIN 0x24 > #define CMD_FW_DL_END 0x25 > #define CMD_FW_SCATTER_WR 0x29 > +#define CMD_GENERIC_I2C_RD 0x2a > +#define CMD_GENERIC_I2C_WR 0x2b > > #endif > -- http://palosaari.fi/