From 4860c73804c6e7ef8e69f98958489bb2bea6f6d2 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 1 Nov 2011 22:23:55 -0200 Subject: staging: Move media drivers to staging/media In practice, it is being hard to distinguish when a patch should go to staging tree or to the media tree. Better to distinguish it, by putting the media drivers at a separate staging directory. Newer staging drivers that include anything with "dvb*.h", "v4l2*.h" or "videodev2.h" should go to the drivers/staging/media tree. Acked-by: Greg Kroah-Hartman Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/cxd2099/Kconfig | 12 + drivers/staging/media/cxd2099/Makefile | 5 + drivers/staging/media/cxd2099/TODO | 12 + drivers/staging/media/cxd2099/cxd2099.c | 716 ++++++++++++++++++++++++++++++++ drivers/staging/media/cxd2099/cxd2099.h | 51 +++ 5 files changed, 796 insertions(+) create mode 100644 drivers/staging/media/cxd2099/Kconfig create mode 100644 drivers/staging/media/cxd2099/Makefile create mode 100644 drivers/staging/media/cxd2099/TODO create mode 100644 drivers/staging/media/cxd2099/cxd2099.c create mode 100644 drivers/staging/media/cxd2099/cxd2099.h (limited to 'drivers/staging/media/cxd2099') diff --git a/drivers/staging/media/cxd2099/Kconfig b/drivers/staging/media/cxd2099/Kconfig new file mode 100644 index 000000000000..b48aefddc84c --- /dev/null +++ b/drivers/staging/media/cxd2099/Kconfig @@ -0,0 +1,12 @@ +config DVB_CXD2099 + tristate "CXD2099AR Common Interface driver" + depends on DVB_CORE && PCI && I2C + ---help--- + Support for the CI module found on cards based on + - Micronas ngene PCIe bridge: cineS2 etc. + - Digital Devices PCIe bridge: Octopus series + + For now, data is passed through '/dev/dvb/adapterX/sec0': + - Encrypted data must be written to 'sec0'. + - Decrypted data can be read from 'sec0'. + - Setup the CAM using device 'ca0'. diff --git a/drivers/staging/media/cxd2099/Makefile b/drivers/staging/media/cxd2099/Makefile new file mode 100644 index 000000000000..64cfc77be357 --- /dev/null +++ b/drivers/staging/media/cxd2099/Makefile @@ -0,0 +1,5 @@ +obj-$(CONFIG_DVB_CXD2099) += cxd2099.o + +ccflags-y += -Idrivers/media/dvb/dvb-core/ +ccflags-y += -Idrivers/media/dvb/frontends/ +ccflags-y += -Idrivers/media/common/tuners/ diff --git a/drivers/staging/media/cxd2099/TODO b/drivers/staging/media/cxd2099/TODO new file mode 100644 index 000000000000..375bb6f8ee2c --- /dev/null +++ b/drivers/staging/media/cxd2099/TODO @@ -0,0 +1,12 @@ +For now, data is passed through '/dev/dvb/adapterX/sec0': + - Encrypted data must be written to 'sec0'. + - Decrypted data can be read from 'sec0'. + - Setup the CAM using device 'ca0'. + +But this is wrong. There are some discussions about the proper way for +doing it, as seen at: + http://www.mail-archive.com/linux-media@vger.kernel.org/msg22196.html + +While there's no proper fix for it, the driver should be kept in staging. + +Patches should be submitted to: linux-media@vger.kernel.org. diff --git a/drivers/staging/media/cxd2099/cxd2099.c b/drivers/staging/media/cxd2099/cxd2099.c new file mode 100644 index 000000000000..1c04185bcfd7 --- /dev/null +++ b/drivers/staging/media/cxd2099/cxd2099.c @@ -0,0 +1,716 @@ +/* + * cxd2099.c: Driver for the CXD2099AR Common Interface Controller + * + * Copyright (C) 2010-2011 Digital Devices GmbH + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 only, as published by the Free Software Foundation. + * + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA + * Or, point your browser to http://www.gnu.org/copyleft/gpl.html + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cxd2099.h" + +#define MAX_BUFFER_SIZE 248 + +struct cxd { + struct dvb_ca_en50221 en; + + struct i2c_adapter *i2c; + struct cxd2099_cfg cfg; + + u8 regs[0x23]; + u8 lastaddress; + u8 clk_reg_f; + u8 clk_reg_b; + int mode; + int ready; + int dr; + int slot_stat; + + u8 amem[1024]; + int amem_read; + + int cammode; + struct mutex lock; +}; + +static int i2c_write_reg(struct i2c_adapter *adapter, u8 adr, + u8 reg, u8 data) +{ + u8 m[2] = {reg, data}; + struct i2c_msg msg = {.addr = adr, .flags = 0, .buf = m, .len = 2}; + + if (i2c_transfer(adapter, &msg, 1) != 1) { + printk(KERN_ERR "Failed to write to I2C register %02x@%02x!\n", + reg, adr); + return -1; + } + return 0; +} + +static int i2c_write(struct i2c_adapter *adapter, u8 adr, + u8 *data, u8 len) +{ + struct i2c_msg msg = {.addr = adr, .flags = 0, .buf = data, .len = len}; + + if (i2c_transfer(adapter, &msg, 1) != 1) { + printk(KERN_ERR "Failed to write to I2C!\n"); + return -1; + } + return 0; +} + +static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr, + u8 reg, u8 *val) +{ + struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0, + .buf = ®, .len = 1}, + {.addr = adr, .flags = I2C_M_RD, + .buf = val, .len = 1} }; + + if (i2c_transfer(adapter, msgs, 2) != 2) { + printk(KERN_ERR "error in i2c_read_reg\n"); + return -1; + } + return 0; +} + +static int i2c_read(struct i2c_adapter *adapter, u8 adr, + u8 reg, u8 *data, u8 n) +{ + struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0, + .buf = ®, .len = 1}, + {.addr = adr, .flags = I2C_M_RD, + .buf = data, .len = n} }; + + if (i2c_transfer(adapter, msgs, 2) != 2) { + printk(KERN_ERR "error in i2c_read\n"); + return -1; + } + return 0; +} + +static int read_block(struct cxd *ci, u8 adr, u8 *data, u8 n) +{ + int status; + + status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, adr); + if (!status) { + ci->lastaddress = adr; + status = i2c_read(ci->i2c, ci->cfg.adr, 1, data, n); + } + return status; +} + +static int read_reg(struct cxd *ci, u8 reg, u8 *val) +{ + return read_block(ci, reg, val, 1); +} + + +static int read_pccard(struct cxd *ci, u16 address, u8 *data, u8 n) +{ + int status; + u8 addr[3] = {2, address & 0xff, address >> 8}; + + status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); + if (!status) + status = i2c_read(ci->i2c, ci->cfg.adr, 3, data, n); + return status; +} + +static int write_pccard(struct cxd *ci, u16 address, u8 *data, u8 n) +{ + int status; + u8 addr[3] = {2, address & 0xff, address >> 8}; + + status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); + if (!status) { + u8 buf[256] = {3}; + memcpy(buf+1, data, n); + status = i2c_write(ci->i2c, ci->cfg.adr, buf, n+1); + } + return status; +} + +static int read_io(struct cxd *ci, u16 address, u8 *val) +{ + int status; + u8 addr[3] = {2, address & 0xff, address >> 8}; + + status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); + if (!status) + status = i2c_read(ci->i2c, ci->cfg.adr, 3, val, 1); + return status; +} + +static int write_io(struct cxd *ci, u16 address, u8 val) +{ + int status; + u8 addr[3] = {2, address & 0xff, address >> 8}; + u8 buf[2] = {3, val}; + + status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); + if (!status) + status = i2c_write(ci->i2c, ci->cfg.adr, buf, 2); + return status; +} + +#if 0 +static int read_io_data(struct cxd *ci, u8 *data, u8 n) +{ + int status; + u8 addr[3] = { 2, 0, 0 }; + + status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); + if (!status) + status = i2c_read(ci->i2c, ci->cfg.adr, 3, data, n); + return 0; +} + +static int write_io_data(struct cxd *ci, u8 *data, u8 n) +{ + int status; + u8 addr[3] = {2, 0, 0}; + + status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); + if (!status) { + u8 buf[256] = {3}; + memcpy(buf+1, data, n); + status = i2c_write(ci->i2c, ci->cfg.adr, buf, n + 1); + } + return 0; +} +#endif + +static int write_regm(struct cxd *ci, u8 reg, u8 val, u8 mask) +{ + int status; + + status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, reg); + if (!status && reg >= 6 && reg <= 8 && mask != 0xff) + status = i2c_read_reg(ci->i2c, ci->cfg.adr, 1, &ci->regs[reg]); + ci->regs[reg] = (ci->regs[reg] & (~mask)) | val; + if (!status) { + ci->lastaddress = reg; + status = i2c_write_reg(ci->i2c, ci->cfg.adr, 1, ci->regs[reg]); + } + if (reg == 0x20) + ci->regs[reg] &= 0x7f; + return status; +} + +static int write_reg(struct cxd *ci, u8 reg, u8 val) +{ + return write_regm(ci, reg, val, 0xff); +} + +#ifdef BUFFER_MODE +static int write_block(struct cxd *ci, u8 adr, u8 *data, int n) +{ + int status; + u8 buf[256] = {1}; + + status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, adr); + if (!status) { + ci->lastaddress = adr; + memcpy(buf + 1, data, n); + status = i2c_write(ci->i2c, ci->cfg.adr, buf, n + 1); + } + return status; +} +#endif + +static void set_mode(struct cxd *ci, int mode) +{ + if (mode == ci->mode) + return; + + switch (mode) { + case 0x00: /* IO mem */ + write_regm(ci, 0x06, 0x00, 0x07); + break; + case 0x01: /* ATT mem */ + write_regm(ci, 0x06, 0x02, 0x07); + break; + default: + break; + } + ci->mode = mode; +} + +static void cam_mode(struct cxd *ci, int mode) +{ + if (mode == ci->cammode) + return; + + switch (mode) { + case 0x00: + write_regm(ci, 0x20, 0x80, 0x80); + break; + case 0x01: +#ifdef BUFFER_MODE + if (!ci->en.read_data) + return; + printk(KERN_INFO "enable cam buffer mode\n"); + /* write_reg(ci, 0x0d, 0x00); */ + /* write_reg(ci, 0x0e, 0x01); */ + write_regm(ci, 0x08, 0x40, 0x40); + /* read_reg(ci, 0x12, &dummy); */ + write_regm(ci, 0x08, 0x80, 0x80); +#endif + break; + default: + break; + } + ci->cammode = mode; +} + + + +static int init(struct cxd *ci) +{ + int status; + + mutex_lock(&ci->lock); + ci->mode = -1; + do { + status = write_reg(ci, 0x00, 0x00); + if (status < 0) + break; + status = write_reg(ci, 0x01, 0x00); + if (status < 0) + break; + status = write_reg(ci, 0x02, 0x10); + if (status < 0) + break; + status = write_reg(ci, 0x03, 0x00); + if (status < 0) + break; + status = write_reg(ci, 0x05, 0xFF); + if (status < 0) + break; + status = write_reg(ci, 0x06, 0x1F); + if (status < 0) + break; + status = write_reg(ci, 0x07, 0x1F); + if (status < 0) + break; + status = write_reg(ci, 0x08, 0x28); + if (status < 0) + break; + status = write_reg(ci, 0x14, 0x20); + if (status < 0) + break; + +#if 0 + status = write_reg(ci, 0x09, 0x4D); /* Input Mode C, BYPass Serial, TIVAL = low, MSB */ + if (status < 0) + break; +#endif + status = write_reg(ci, 0x0A, 0xA7); /* TOSTRT = 8, Mode B (gated clock), falling Edge, Serial, POL=HIGH, MSB */ + if (status < 0) + break; + + status = write_reg(ci, 0x0B, 0x33); + if (status < 0) + break; + status = write_reg(ci, 0x0C, 0x33); + if (status < 0) + break; + + status = write_regm(ci, 0x14, 0x00, 0x0F); + if (status < 0) + break; + status = write_reg(ci, 0x15, ci->clk_reg_b); + if (status < 0) + break; + status = write_regm(ci, 0x16, 0x00, 0x0F); + if (status < 0) + break; + status = write_reg(ci, 0x17, ci->clk_reg_f); + if (status < 0) + break; + + if (ci->cfg.clock_mode) { + if (ci->cfg.polarity) { + status = write_reg(ci, 0x09, 0x6f); + if (status < 0) + break; + } else { + status = write_reg(ci, 0x09, 0x6d); + if (status < 0) + break; + } + status = write_reg(ci, 0x20, 0x68); + if (status < 0) + break; + status = write_reg(ci, 0x21, 0x00); + if (status < 0) + break; + status = write_reg(ci, 0x22, 0x02); + if (status < 0) + break; + } else { + if (ci->cfg.polarity) { + status = write_reg(ci, 0x09, 0x4f); + if (status < 0) + break; + } else { + status = write_reg(ci, 0x09, 0x4d); + if (status < 0) + break; + } + + status = write_reg(ci, 0x20, 0x28); + if (status < 0) + break; + status = write_reg(ci, 0x21, 0x00); + if (status < 0) + break; + status = write_reg(ci, 0x22, 0x07); + if (status < 0) + break; + } + + status = write_regm(ci, 0x20, 0x80, 0x80); + if (status < 0) + break; + status = write_regm(ci, 0x03, 0x02, 0x02); + if (status < 0) + break; + status = write_reg(ci, 0x01, 0x04); + if (status < 0) + break; + status = write_reg(ci, 0x00, 0x31); + if (status < 0) + break; + + /* Put TS in bypass */ + status = write_regm(ci, 0x09, 0x08, 0x08); + if (status < 0) + break; + ci->cammode = -1; + cam_mode(ci, 0); + } while (0); + mutex_unlock(&ci->lock); + + return 0; +} + +static int read_attribute_mem(struct dvb_ca_en50221 *ca, + int slot, int address) +{ + struct cxd *ci = ca->data; +#if 0 + if (ci->amem_read) { + if (address <= 0 || address > 1024) + return -EIO; + return ci->amem[address]; + } + + mutex_lock(&ci->lock); + write_regm(ci, 0x06, 0x00, 0x05); + read_pccard(ci, 0, &ci->amem[0], 128); + read_pccard(ci, 128, &ci->amem[0], 128); + read_pccard(ci, 256, &ci->amem[0], 128); + read_pccard(ci, 384, &ci->amem[0], 128); + write_regm(ci, 0x06, 0x05, 0x05); + mutex_unlock(&ci->lock); + return ci->amem[address]; +#else + u8 val; + mutex_lock(&ci->lock); + set_mode(ci, 1); + read_pccard(ci, address, &val, 1); + mutex_unlock(&ci->lock); + /* printk(KERN_INFO "%02x:%02x\n", address,val); */ + return val; +#endif +} + +static int write_attribute_mem(struct dvb_ca_en50221 *ca, int slot, + int address, u8 value) +{ + struct cxd *ci = ca->data; + + mutex_lock(&ci->lock); + set_mode(ci, 1); + write_pccard(ci, address, &value, 1); + mutex_unlock(&ci->lock); + return 0; +} + +static int read_cam_control(struct dvb_ca_en50221 *ca, + int slot, u8 address) +{ + struct cxd *ci = ca->data; + u8 val; + + mutex_lock(&ci->lock); + set_mode(ci, 0); + read_io(ci, address, &val); + mutex_unlock(&ci->lock); + return val; +} + +static int write_cam_control(struct dvb_ca_en50221 *ca, int slot, + u8 address, u8 value) +{ + struct cxd *ci = ca->data; + + mutex_lock(&ci->lock); + set_mode(ci, 0); + write_io(ci, address, value); + mutex_unlock(&ci->lock); + return 0; +} + +static int slot_reset(struct dvb_ca_en50221 *ca, int slot) +{ + struct cxd *ci = ca->data; + + mutex_lock(&ci->lock); +#if 0 + write_reg(ci, 0x00, 0x21); + write_reg(ci, 0x06, 0x1F); + write_reg(ci, 0x00, 0x31); +#else +#if 0 + write_reg(ci, 0x06, 0x1F); + write_reg(ci, 0x06, 0x2F); +#else + cam_mode(ci, 0); + write_reg(ci, 0x00, 0x21); + write_reg(ci, 0x06, 0x1F); + write_reg(ci, 0x00, 0x31); + write_regm(ci, 0x20, 0x80, 0x80); + write_reg(ci, 0x03, 0x02); + ci->ready = 0; +#endif +#endif + ci->mode = -1; + { + int i; +#if 0 + u8 val; +#endif + for (i = 0; i < 100; i++) { + msleep(10); +#if 0 + read_reg(ci, 0x06, &val); + printk(KERN_INFO "%d:%02x\n", i, val); + if (!(val&0x10)) + break; +#else + if (ci->ready) + break; +#endif + } + } + mutex_unlock(&ci->lock); + /* msleep(500); */ + return 0; +} + +static int slot_shutdown(struct dvb_ca_en50221 *ca, int slot) +{ + struct cxd *ci = ca->data; + + printk(KERN_INFO "slot_shutdown\n"); + mutex_lock(&ci->lock); + write_regm(ci, 0x09, 0x08, 0x08); + write_regm(ci, 0x20, 0x80, 0x80); /* Reset CAM Mode */ + write_regm(ci, 0x06, 0x07, 0x07); /* Clear IO Mode */ + ci->mode = -1; + mutex_unlock(&ci->lock); + return 0; +} + +static int slot_ts_enable(struct dvb_ca_en50221 *ca, int slot) +{ + struct cxd *ci = ca->data; + + mutex_lock(&ci->lock); + write_regm(ci, 0x09, 0x00, 0x08); + set_mode(ci, 0); +#ifdef BUFFER_MODE + cam_mode(ci, 1); +#endif + mutex_unlock(&ci->lock); + return 0; +} + + +static int campoll(struct cxd *ci) +{ + u8 istat; + + read_reg(ci, 0x04, &istat); + if (!istat) + return 0; + write_reg(ci, 0x05, istat); + + if (istat&0x40) { + ci->dr = 1; + printk(KERN_INFO "DR\n"); + } + if (istat&0x20) + printk(KERN_INFO "WC\n"); + + if (istat&2) { + u8 slotstat; + + read_reg(ci, 0x01, &slotstat); + if (!(2&slotstat)) { + if (!ci->slot_stat) { + ci->slot_stat |= DVB_CA_EN50221_POLL_CAM_PRESENT; + write_regm(ci, 0x03, 0x08, 0x08); + } + + } else { + if (ci->slot_stat) { + ci->slot_stat = 0; + write_regm(ci, 0x03, 0x00, 0x08); + printk(KERN_INFO "NO CAM\n"); + ci->ready = 0; + } + } + if (istat&8 && ci->slot_stat == DVB_CA_EN50221_POLL_CAM_PRESENT) { + ci->ready = 1; + ci->slot_stat |= DVB_CA_EN50221_POLL_CAM_READY; + } + } + return 0; +} + + +static int poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open) +{ + struct cxd *ci = ca->data; + u8 slotstat; + + mutex_lock(&ci->lock); + campoll(ci); + read_reg(ci, 0x01, &slotstat); + mutex_unlock(&ci->lock); + + return ci->slot_stat; +} + +#ifdef BUFFER_MODE +static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount) +{ + struct cxd *ci = ca->data; + u8 msb, lsb; + u16 len; + + mutex_lock(&ci->lock); + campoll(ci); + mutex_unlock(&ci->lock); + + printk(KERN_INFO "read_data\n"); + if (!ci->dr) + return 0; + + mutex_lock(&ci->lock); + read_reg(ci, 0x0f, &msb); + read_reg(ci, 0x10, &lsb); + len = (msb<<8)|lsb; + read_block(ci, 0x12, ebuf, len); + ci->dr = 0; + mutex_unlock(&ci->lock); + + return len; +} + +static int write_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount) +{ + struct cxd *ci = ca->data; + + mutex_lock(&ci->lock); + printk(kern_INFO "write_data %d\n", ecount); + write_reg(ci, 0x0d, ecount>>8); + write_reg(ci, 0x0e, ecount&0xff); + write_block(ci, 0x11, ebuf, ecount); + mutex_unlock(&ci->lock); + return ecount; +} +#endif + +static struct dvb_ca_en50221 en_templ = { + .read_attribute_mem = read_attribute_mem, + .write_attribute_mem = write_attribute_mem, + .read_cam_control = read_cam_control, + .write_cam_control = write_cam_control, + .slot_reset = slot_reset, + .slot_shutdown = slot_shutdown, + .slot_ts_enable = slot_ts_enable, + .poll_slot_status = poll_slot_status, +#ifdef BUFFER_MODE + .read_data = read_data, + .write_data = write_data, +#endif + +}; + +struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg, + void *priv, + struct i2c_adapter *i2c) +{ + struct cxd *ci = 0; + u8 val; + + if (i2c_read_reg(i2c, cfg->adr, 0, &val) < 0) { + printk(KERN_INFO "No CXD2099 detected at %02x\n", cfg->adr); + return 0; + } + + ci = kmalloc(sizeof(struct cxd), GFP_KERNEL); + if (!ci) + return 0; + memset(ci, 0, sizeof(*ci)); + + mutex_init(&ci->lock); + memcpy(&ci->cfg, cfg, sizeof(struct cxd2099_cfg)); + ci->i2c = i2c; + ci->lastaddress = 0xff; + ci->clk_reg_b = 0x4a; + ci->clk_reg_f = 0x1b; + + memcpy(&ci->en, &en_templ, sizeof(en_templ)); + ci->en.data = ci; + init(ci); + printk(KERN_INFO "Attached CXD2099AR at %02x\n", ci->cfg.adr); + return &ci->en; +} +EXPORT_SYMBOL(cxd2099_attach); + +MODULE_DESCRIPTION("cxd2099"); +MODULE_AUTHOR("Ralph Metzler"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/media/cxd2099/cxd2099.h b/drivers/staging/media/cxd2099/cxd2099.h new file mode 100644 index 000000000000..19c588a59588 --- /dev/null +++ b/drivers/staging/media/cxd2099/cxd2099.h @@ -0,0 +1,51 @@ +/* + * cxd2099.h: Driver for the CXD2099AR Common Interface Controller + * + * Copyright (C) 2010-2011 Digital Devices GmbH + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 only, as published by the Free Software Foundation. + * + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA + * Or, point your browser to http://www.gnu.org/copyleft/gpl.html + */ + +#ifndef _CXD2099_H_ +#define _CXD2099_H_ + +#include + +struct cxd2099_cfg { + u32 bitrate; + u8 adr; + u8 polarity:1; + u8 clock_mode:1; +}; + +#if defined(CONFIG_DVB_CXD2099) || \ + (defined(CONFIG_DVB_CXD2099_MODULE) && defined(MODULE)) +struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg, + void *priv, struct i2c_adapter *i2c); +#else + +static inline struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg, + void *priv, struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif -- cgit v1.2.3