From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/media/pci/cx23885/netup-init.c | 112 +++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 drivers/media/pci/cx23885/netup-init.c (limited to 'drivers/media/pci/cx23885/netup-init.c') diff --git a/drivers/media/pci/cx23885/netup-init.c b/drivers/media/pci/cx23885/netup-init.c new file mode 100644 index 000000000..c653b0766 --- /dev/null +++ b/drivers/media/pci/cx23885/netup-init.c @@ -0,0 +1,112 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * netup-init.c + * + * NetUP Dual DVB-S2 CI driver + * + * Copyright (C) 2009 NetUP Inc. + * Copyright (C) 2009 Igor M. Liplianin + * Copyright (C) 2009 Abylay Ospan + */ + +#include "cx23885.h" +#include "netup-init.h" + +static void i2c_av_write(struct i2c_adapter *i2c, u16 reg, u8 val) +{ + int ret; + u8 buf[3]; + struct i2c_msg msg = { + .addr = 0x88 >> 1, + .flags = 0, + .buf = buf, + .len = 3 + }; + + buf[0] = reg >> 8; + buf[1] = reg & 0xff; + buf[2] = val; + + ret = i2c_transfer(i2c, &msg, 1); + + if (ret != 1) + pr_err("%s: i2c write error!\n", __func__); +} + +static void i2c_av_write4(struct i2c_adapter *i2c, u16 reg, u32 val) +{ + int ret; + u8 buf[6]; + struct i2c_msg msg = { + .addr = 0x88 >> 1, + .flags = 0, + .buf = buf, + .len = 6 + }; + + buf[0] = reg >> 8; + buf[1] = reg & 0xff; + buf[2] = val & 0xff; + buf[3] = (val >> 8) & 0xff; + buf[4] = (val >> 16) & 0xff; + buf[5] = val >> 24; + + ret = i2c_transfer(i2c, &msg, 1); + + if (ret != 1) + pr_err("%s: i2c write error!\n", __func__); +} + +static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg) +{ + int ret; + u8 buf[2]; + struct i2c_msg msg = { + .addr = 0x88 >> 1, + .flags = 0, + .buf = buf, + .len = 2 + }; + + buf[0] = reg >> 8; + buf[1] = reg & 0xff; + + ret = i2c_transfer(i2c, &msg, 1); + + if (ret != 1) + pr_err("%s: i2c write error!\n", __func__); + + msg.flags = I2C_M_RD; + msg.len = 1; + + ret = i2c_transfer(i2c, &msg, 1); + + if (ret != 1) + pr_err("%s: i2c read error!\n", __func__); + + return buf[0]; +} + +static void i2c_av_and_or(struct i2c_adapter *i2c, u16 reg, unsigned and_mask, + u8 or_value) +{ + i2c_av_write(i2c, reg, (i2c_av_read(i2c, reg) & and_mask) | or_value); +} +/* set 27MHz on AUX_CLK */ +void netup_initialize(struct cx23885_dev *dev) +{ + struct cx23885_i2c *i2c_bus = &dev->i2c_bus[2]; + struct i2c_adapter *i2c = &i2c_bus->i2c_adap; + + /* Stop microcontroller */ + i2c_av_and_or(i2c, 0x803, ~0x10, 0x00); + + /* Aux PLL frac for 27 MHz */ + i2c_av_write4(i2c, 0x114, 0xea0eb3); + + /* Aux PLL int for 27 MHz */ + i2c_av_write4(i2c, 0x110, 0x090319); + + /* start microcontroller */ + i2c_av_and_or(i2c, 0x803, ~0x10, 0x10); +} -- cgit v1.2.3