From 8112248a1b66440f6c562c2669aba6950ef48199 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 17 Jan 2011 14:20:49 -0200 Subject: [media] Move CI cxd2099 driver to staging This driver is abusing the kernel<=>userspace API, due to the lack of a proper solution for it. A discussion were done at: http://www.mail-archive.com/linux-media@vger.kernel.org/msg22196.html But there's not a solution for it yet. So, move the driver to staging, while we don't have a final solution. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/ngene/Makefile | 5 +- drivers/media/dvb/ngene/cxd2099.c | 574 -------------------------------------- drivers/media/dvb/ngene/cxd2099.h | 32 --- drivers/staging/Kconfig | 2 + drivers/staging/Makefile | 1 + drivers/staging/cxd2099/Kconfig | 11 + drivers/staging/cxd2099/Makefile | 5 + drivers/staging/cxd2099/TODO | 12 + drivers/staging/cxd2099/cxd2099.c | 574 ++++++++++++++++++++++++++++++++++++++ drivers/staging/cxd2099/cxd2099.h | 41 +++ 10 files changed, 650 insertions(+), 607 deletions(-) delete mode 100644 drivers/media/dvb/ngene/cxd2099.c delete mode 100644 drivers/media/dvb/ngene/cxd2099.h create mode 100644 drivers/staging/cxd2099/Kconfig create mode 100644 drivers/staging/cxd2099/Makefile create mode 100644 drivers/staging/cxd2099/TODO create mode 100644 drivers/staging/cxd2099/cxd2099.c create mode 100644 drivers/staging/cxd2099/cxd2099.h diff --git a/drivers/media/dvb/ngene/Makefile b/drivers/media/dvb/ngene/Makefile index 00d12d6c4618..2bc96874d044 100644 --- a/drivers/media/dvb/ngene/Makefile +++ b/drivers/media/dvb/ngene/Makefile @@ -2,10 +2,13 @@ # Makefile for the nGene device driver # -ngene-objs := ngene-core.o ngene-i2c.o ngene-cards.o ngene-dvb.o cxd2099.o +ngene-objs := ngene-core.o ngene-i2c.o ngene-cards.o ngene-dvb.o obj-$(CONFIG_DVB_NGENE) += ngene.o EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ EXTRA_CFLAGS += -Idrivers/media/dvb/frontends/ EXTRA_CFLAGS += -Idrivers/media/common/tuners/ + +# For the staging CI driver cxd2099 +EXTRA_CFLAGS += -Idrivers/staging/cxd2099/ diff --git a/drivers/media/dvb/ngene/cxd2099.c b/drivers/media/dvb/ngene/cxd2099.c deleted file mode 100644 index b49186c74eb3..000000000000 --- a/drivers/media/dvb/ngene/cxd2099.c +++ /dev/null @@ -1,574 +0,0 @@ -/* - * cxd2099.c: Driver for the CXD2099AR Common Interface Controller - * - * Copyright (C) 2010 DigitalDevices UG - * - * - * 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 - -#include "cxd2099.h" - -#define MAX_BUFFER_SIZE 248 - -struct cxd { - struct dvb_ca_en50221 en; - - struct i2c_adapter *i2c; - u8 adr; - u8 regs[0x23]; - u8 lastaddress; - u8 clk_reg_f; - u8 clk_reg_b; - int mode; - u32 bitrate; - 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->adr, 0, adr); - if (!status) { - ci->lastaddress = adr; - status = i2c_read(ci->i2c, ci->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->adr, addr, 3); - if (!status) - status = i2c_read(ci->i2c, ci->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->adr, addr, 3); - if (!status) { - u8 buf[256] = {3}; - memcpy(buf+1, data, n); - status = i2c_write(ci->i2c, ci->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->adr, addr, 3); - if (!status) - status = i2c_read(ci->i2c, ci->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->adr, addr, 3); - if (!status) - status = i2c_write(ci->i2c, ci->adr, buf, 2); - - return status; -} - - -static int write_regm(struct cxd *ci, u8 reg, u8 val, u8 mask) -{ - int status; - - status = i2c_write_reg(ci->i2c, ci->adr, 0, reg); - if (!status && reg >= 6 && reg <= 8 && mask != 0xff) - status = i2c_read_reg(ci->i2c, ci->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->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->adr, 0, adr); - if (!status) { - ci->lastaddress = adr; - memcpy(buf+1, data, n); - status = i2c_write(ci->i2c, ci->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: - 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); - break; - default: - break; - } - ci->cammode = mode; -} - - - -#define CHK_ERROR(s) if ((status = s)) break - -static int init(struct cxd *ci) -{ - int status; - - mutex_lock(&ci->lock); - ci->mode = -1; - do { - CHK_ERROR(write_reg(ci, 0x00, 0x00)); - CHK_ERROR(write_reg(ci, 0x01, 0x00)); - CHK_ERROR(write_reg(ci, 0x02, 0x10)); - CHK_ERROR(write_reg(ci, 0x03, 0x00)); - CHK_ERROR(write_reg(ci, 0x05, 0xFF)); - CHK_ERROR(write_reg(ci, 0x06, 0x1F)); - CHK_ERROR(write_reg(ci, 0x07, 0x1F)); - CHK_ERROR(write_reg(ci, 0x08, 0x28)); - CHK_ERROR(write_reg(ci, 0x14, 0x20)); - - CHK_ERROR(write_reg(ci, 0x09, 0x4D)); /* Input Mode C, BYPass Serial, TIVAL = low, MSB */ - CHK_ERROR(write_reg(ci, 0x0A, 0xA7)); /* TOSTRT = 8, Mode B (gated clock), falling Edge, Serial, POL=HIGH, MSB */ - - /* Sync detector */ - CHK_ERROR(write_reg(ci, 0x0B, 0x33)); - CHK_ERROR(write_reg(ci, 0x0C, 0x33)); - - CHK_ERROR(write_regm(ci, 0x14, 0x00, 0x0F)); - CHK_ERROR(write_reg(ci, 0x15, ci->clk_reg_b)); - CHK_ERROR(write_regm(ci, 0x16, 0x00, 0x0F)); - CHK_ERROR(write_reg(ci, 0x17, ci->clk_reg_f)); - - CHK_ERROR(write_reg(ci, 0x20, 0x28)); /* Integer Divider, Falling Edge, Internal Sync, */ - CHK_ERROR(write_reg(ci, 0x21, 0x00)); /* MCLKI = TICLK/8 */ - CHK_ERROR(write_reg(ci, 0x22, 0x07)); /* MCLKI = TICLK/8 */ - - - CHK_ERROR(write_regm(ci, 0x20, 0x80, 0x80)); /* Reset CAM state machine */ - - CHK_ERROR(write_regm(ci, 0x03, 0x02, 02)); /* Enable IREQA Interrupt */ - CHK_ERROR(write_reg(ci, 0x01, 0x04)); /* Enable CD Interrupt */ - CHK_ERROR(write_reg(ci, 0x00, 0x31)); /* Enable TS1,Hot Swap,Slot A */ - CHK_ERROR(write_regm(ci, 0x09, 0x08, 0x08)); /* Put TS in bypass */ - ci->cammode = -1; -#ifdef BUFFER_MODE - cam_mode(ci, 0); -#endif - } 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; - u8 val; - mutex_lock(&ci->lock); - set_mode(ci, 1); - read_pccard(ci, address, &val, 1); - mutex_unlock(&ci->lock); - return val; -} - - -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); - 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; - ci->mode = -1; - { - int i; - for (i = 0; i < 100; i++) { - msleep(10); - if (ci->ready) - break; - } - } - 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); - write_regm(ci, 0x06, 0x07, 0x07); - ci->mode = -1; - mutex_unlock(&ci->lock); - return 0; /* shutdown(ci); */ -} - -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; - printk(KERN_INFO "READY\n"); - } - } - 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(u8 adr, void *priv, - struct i2c_adapter *i2c) -{ - struct cxd *ci = 0; - u32 bitrate = 62000000; - u8 val; - - if (i2c_read_reg(i2c, adr, 0, &val) < 0) { - printk(KERN_ERR "No CXD2099 detected at %02x\n", adr); - return 0; - } - - ci = kmalloc(sizeof(struct cxd), GFP_KERNEL); - if (!ci) - return 0; - memset(ci, 0, sizeof(*ci)); - - mutex_init(&ci->lock); - ci->i2c = i2c; - ci->adr = adr; - ci->lastaddress = 0xff; - ci->clk_reg_b = 0x4a; - ci->clk_reg_f = 0x1b; - ci->bitrate = bitrate; - - memcpy(&ci->en, &en_templ, sizeof(en_templ)); - ci->en.data = ci; - init(ci); - printk(KERN_INFO "Attached CXD2099AR at %02x\n", ci->adr); - return &ci->en; -} -EXPORT_SYMBOL(cxd2099_attach); - -MODULE_DESCRIPTION("cxd2099"); -MODULE_AUTHOR("Ralph Metzler "); -MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/ngene/cxd2099.h b/drivers/media/dvb/ngene/cxd2099.h deleted file mode 100644 index f71b807e8bb7..000000000000 --- a/drivers/media/dvb/ngene/cxd2099.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * cxd2099.h: Driver for the CXD2099AR Common Interface Controller - * - * Copyright (C) 2010 DigitalDevices UG - * - * - * 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 dvb_ca_en50221 *cxd2099_attach(u8 adr, void *priv, struct i2c_adapter *i2c); - -#endif diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index 5c8fcfc42c3e..4a88e69bb9bb 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -51,6 +51,8 @@ source "drivers/staging/cx25821/Kconfig" source "drivers/staging/tm6000/Kconfig" +source "drivers/staging/cxd2099/Kconfig" + source "drivers/staging/dabusb/Kconfig" source "drivers/staging/se401/Kconfig" diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile index d53886317826..80ee49ab59de 100644 --- a/drivers/staging/Makefile +++ b/drivers/staging/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_SLICOSS) += slicoss/ obj-$(CONFIG_VIDEO_GO7007) += go7007/ obj-$(CONFIG_VIDEO_CX25821) += cx25821/ obj-$(CONFIG_VIDEO_TM6000) += tm6000/ +obj-$(CONFIG_DVB_CXD2099) += cxd2099/ obj-$(CONFIG_USB_DABUSB) += dabusb/ obj-$(CONFIG_USB_VICAM) += usbvideo/ obj-$(CONFIG_USB_SE401) += se401/ diff --git a/drivers/staging/cxd2099/Kconfig b/drivers/staging/cxd2099/Kconfig new file mode 100644 index 000000000000..9d638c30735d --- /dev/null +++ b/drivers/staging/cxd2099/Kconfig @@ -0,0 +1,11 @@ +config DVB_CXD2099 + tristate "CXD2099AR Common Interface driver" + depends on DVB_CORE && PCI && I2C && DVB_NGENE + ---help--- + Support for the CI module found on cineS2 DVB-S2, supported by + the Micronas PCIe device driver (ngene). + + For now, data is passed through '/dev/dvb/adapterX/sec0': + - Encrypted data must be written to 'sec0'. + - Decrypted data can be read from 'sec0'. + - Setup the CAM using device 'ca0'. diff --git a/drivers/staging/cxd2099/Makefile b/drivers/staging/cxd2099/Makefile new file mode 100644 index 000000000000..72b14558c119 --- /dev/null +++ b/drivers/staging/cxd2099/Makefile @@ -0,0 +1,5 @@ +obj-$(CONFIG_DVB_CXD2099) += cxd2099.o + +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ +EXTRA_CFLAGS += -Idrivers/media/dvb/frontends/ +EXTRA_CFLAGS += -Idrivers/media/common/tuners/ diff --git a/drivers/staging/cxd2099/TODO b/drivers/staging/cxd2099/TODO new file mode 100644 index 000000000000..375bb6f8ee2c --- /dev/null +++ b/drivers/staging/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/cxd2099/cxd2099.c b/drivers/staging/cxd2099/cxd2099.c new file mode 100644 index 000000000000..b49186c74eb3 --- /dev/null +++ b/drivers/staging/cxd2099/cxd2099.c @@ -0,0 +1,574 @@ +/* + * cxd2099.c: Driver for the CXD2099AR Common Interface Controller + * + * Copyright (C) 2010 DigitalDevices UG + * + * + * 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 + +#include "cxd2099.h" + +#define MAX_BUFFER_SIZE 248 + +struct cxd { + struct dvb_ca_en50221 en; + + struct i2c_adapter *i2c; + u8 adr; + u8 regs[0x23]; + u8 lastaddress; + u8 clk_reg_f; + u8 clk_reg_b; + int mode; + u32 bitrate; + 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->adr, 0, adr); + if (!status) { + ci->lastaddress = adr; + status = i2c_read(ci->i2c, ci->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->adr, addr, 3); + if (!status) + status = i2c_read(ci->i2c, ci->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->adr, addr, 3); + if (!status) { + u8 buf[256] = {3}; + memcpy(buf+1, data, n); + status = i2c_write(ci->i2c, ci->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->adr, addr, 3); + if (!status) + status = i2c_read(ci->i2c, ci->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->adr, addr, 3); + if (!status) + status = i2c_write(ci->i2c, ci->adr, buf, 2); + + return status; +} + + +static int write_regm(struct cxd *ci, u8 reg, u8 val, u8 mask) +{ + int status; + + status = i2c_write_reg(ci->i2c, ci->adr, 0, reg); + if (!status && reg >= 6 && reg <= 8 && mask != 0xff) + status = i2c_read_reg(ci->i2c, ci->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->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->adr, 0, adr); + if (!status) { + ci->lastaddress = adr; + memcpy(buf+1, data, n); + status = i2c_write(ci->i2c, ci->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: + 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); + break; + default: + break; + } + ci->cammode = mode; +} + + + +#define CHK_ERROR(s) if ((status = s)) break + +static int init(struct cxd *ci) +{ + int status; + + mutex_lock(&ci->lock); + ci->mode = -1; + do { + CHK_ERROR(write_reg(ci, 0x00, 0x00)); + CHK_ERROR(write_reg(ci, 0x01, 0x00)); + CHK_ERROR(write_reg(ci, 0x02, 0x10)); + CHK_ERROR(write_reg(ci, 0x03, 0x00)); + CHK_ERROR(write_reg(ci, 0x05, 0xFF)); + CHK_ERROR(write_reg(ci, 0x06, 0x1F)); + CHK_ERROR(write_reg(ci, 0x07, 0x1F)); + CHK_ERROR(write_reg(ci, 0x08, 0x28)); + CHK_ERROR(write_reg(ci, 0x14, 0x20)); + + CHK_ERROR(write_reg(ci, 0x09, 0x4D)); /* Input Mode C, BYPass Serial, TIVAL = low, MSB */ + CHK_ERROR(write_reg(ci, 0x0A, 0xA7)); /* TOSTRT = 8, Mode B (gated clock), falling Edge, Serial, POL=HIGH, MSB */ + + /* Sync detector */ + CHK_ERROR(write_reg(ci, 0x0B, 0x33)); + CHK_ERROR(write_reg(ci, 0x0C, 0x33)); + + CHK_ERROR(write_regm(ci, 0x14, 0x00, 0x0F)); + CHK_ERROR(write_reg(ci, 0x15, ci->clk_reg_b)); + CHK_ERROR(write_regm(ci, 0x16, 0x00, 0x0F)); + CHK_ERROR(write_reg(ci, 0x17, ci->clk_reg_f)); + + CHK_ERROR(write_reg(ci, 0x20, 0x28)); /* Integer Divider, Falling Edge, Internal Sync, */ + CHK_ERROR(write_reg(ci, 0x21, 0x00)); /* MCLKI = TICLK/8 */ + CHK_ERROR(write_reg(ci, 0x22, 0x07)); /* MCLKI = TICLK/8 */ + + + CHK_ERROR(write_regm(ci, 0x20, 0x80, 0x80)); /* Reset CAM state machine */ + + CHK_ERROR(write_regm(ci, 0x03, 0x02, 02)); /* Enable IREQA Interrupt */ + CHK_ERROR(write_reg(ci, 0x01, 0x04)); /* Enable CD Interrupt */ + CHK_ERROR(write_reg(ci, 0x00, 0x31)); /* Enable TS1,Hot Swap,Slot A */ + CHK_ERROR(write_regm(ci, 0x09, 0x08, 0x08)); /* Put TS in bypass */ + ci->cammode = -1; +#ifdef BUFFER_MODE + cam_mode(ci, 0); +#endif + } 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; + u8 val; + mutex_lock(&ci->lock); + set_mode(ci, 1); + read_pccard(ci, address, &val, 1); + mutex_unlock(&ci->lock); + return val; +} + + +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); + 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; + ci->mode = -1; + { + int i; + for (i = 0; i < 100; i++) { + msleep(10); + if (ci->ready) + break; + } + } + 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); + write_regm(ci, 0x06, 0x07, 0x07); + ci->mode = -1; + mutex_unlock(&ci->lock); + return 0; /* shutdown(ci); */ +} + +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; + printk(KERN_INFO "READY\n"); + } + } + 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(u8 adr, void *priv, + struct i2c_adapter *i2c) +{ + struct cxd *ci = 0; + u32 bitrate = 62000000; + u8 val; + + if (i2c_read_reg(i2c, adr, 0, &val) < 0) { + printk(KERN_ERR "No CXD2099 detected at %02x\n", adr); + return 0; + } + + ci = kmalloc(sizeof(struct cxd), GFP_KERNEL); + if (!ci) + return 0; + memset(ci, 0, sizeof(*ci)); + + mutex_init(&ci->lock); + ci->i2c = i2c; + ci->adr = adr; + ci->lastaddress = 0xff; + ci->clk_reg_b = 0x4a; + ci->clk_reg_f = 0x1b; + ci->bitrate = bitrate; + + memcpy(&ci->en, &en_templ, sizeof(en_templ)); + ci->en.data = ci; + init(ci); + printk(KERN_INFO "Attached CXD2099AR at %02x\n", ci->adr); + return &ci->en; +} +EXPORT_SYMBOL(cxd2099_attach); + +MODULE_DESCRIPTION("cxd2099"); +MODULE_AUTHOR("Ralph Metzler "); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/cxd2099/cxd2099.h b/drivers/staging/cxd2099/cxd2099.h new file mode 100644 index 000000000000..a313dc26b962 --- /dev/null +++ b/drivers/staging/cxd2099/cxd2099.h @@ -0,0 +1,41 @@ +/* + * cxd2099.h: Driver for the CXD2099AR Common Interface Controller + * + * Copyright (C) 2010 DigitalDevices UG + * + * + * 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 + +#if defined(CONFIG_DVB_CXD2099) || \ + (defined(CONFIG_DVB_CXD2099_MODULE) && defined(MODULE)) +struct dvb_ca_en50221 *cxd2099_attach(u8 adr, void *priv, struct i2c_adapter *i2c); +#else +struct dvb_ca_en50221 *cxd2099_attach(u8 adr, void *priv, struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif -- cgit v1.2.2