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112 lines
2.5 KiB
112 lines
2.5 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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Mantis PCI bridge driver |
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Copyright (C) Manu Abraham ([email protected]) |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/i2c.h> |
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#include <linux/signal.h> |
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#include <linux/sched.h> |
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#include <linux/interrupt.h> |
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#include <asm/io.h> |
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#include <media/dmxdev.h> |
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#include <media/dvbdev.h> |
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#include <media/dvb_demux.h> |
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#include <media/dvb_frontend.h> |
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#include <media/dvb_net.h> |
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#include "mantis_common.h" |
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#include "mantis_reg.h" |
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#include "mantis_ioc.h" |
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static int read_eeprom_bytes(struct mantis_pci *mantis, u8 reg, u8 *data, u8 length) |
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{ |
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struct i2c_adapter *adapter = &mantis->adapter; |
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int err; |
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u8 buf = reg; |
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struct i2c_msg msg[] = { |
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{ .addr = 0x50, .flags = 0, .buf = &buf, .len = 1 }, |
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{ .addr = 0x50, .flags = I2C_M_RD, .buf = data, .len = length }, |
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}; |
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err = i2c_transfer(adapter, msg, 2); |
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if (err < 0) { |
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dprintk(MANTIS_ERROR, 1, "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >", |
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err, data[0], data[1]); |
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return err; |
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} |
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return 0; |
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} |
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int mantis_get_mac(struct mantis_pci *mantis) |
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{ |
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int err; |
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u8 mac_addr[6] = {0}; |
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err = read_eeprom_bytes(mantis, 0x08, mac_addr, 6); |
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if (err < 0) { |
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dprintk(MANTIS_ERROR, 1, "ERROR: Mantis EEPROM read error <%d>", err); |
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return err; |
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} |
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dprintk(MANTIS_ERROR, 0, " MAC Address=[%pM]\n", mac_addr); |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(mantis_get_mac); |
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/* Turn the given bit on or off. */ |
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void mantis_gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value) |
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{ |
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u32 cur; |
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dprintk(MANTIS_DEBUG, 1, "Set Bit <%d> to <%d>", bitpos, value); |
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cur = mmread(MANTIS_GPIF_ADDR); |
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if (value) |
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mantis->gpio_status = cur | (1 << bitpos); |
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else |
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mantis->gpio_status = cur & (~(1 << bitpos)); |
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dprintk(MANTIS_DEBUG, 1, "GPIO Value <%02x>", mantis->gpio_status); |
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mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR); |
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mmwrite(0x00, MANTIS_GPIF_DOUT); |
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} |
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EXPORT_SYMBOL_GPL(mantis_gpio_set_bits); |
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int mantis_stream_control(struct mantis_pci *mantis, enum mantis_stream_control stream_ctl) |
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{ |
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u32 reg; |
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reg = mmread(MANTIS_CONTROL); |
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switch (stream_ctl) { |
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case STREAM_TO_HIF: |
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dprintk(MANTIS_DEBUG, 1, "Set stream to HIF"); |
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reg &= 0xff - MANTIS_BYPASS; |
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mmwrite(reg, MANTIS_CONTROL); |
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reg |= MANTIS_BYPASS; |
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mmwrite(reg, MANTIS_CONTROL); |
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break; |
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case STREAM_TO_CAM: |
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dprintk(MANTIS_DEBUG, 1, "Set stream to CAM"); |
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reg |= MANTIS_BYPASS; |
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mmwrite(reg, MANTIS_CONTROL); |
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reg &= 0xff - MANTIS_BYPASS; |
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mmwrite(reg, MANTIS_CONTROL); |
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break; |
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default: |
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dprintk(MANTIS_ERROR, 1, "Unknown MODE <%02x>", stream_ctl); |
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return -1; |
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} |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(mantis_stream_control);
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