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https://github.com/edk2-porting/linux-next.git
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65f2e753f1
This reverts commit 5dd7bf59e0.
Conflicts:
scripts/mod/file2alias.c
This change is wrong on many levels. First and foremost, it causes a
regression. On boot on Assabet, which this patch gives a codec id of
'ucb1x00', it gives:
ucb1x00 ID not found: 1005
0x1005 is a valid ID for the UCB1300 device.
Secondly, this patch is way over the top in terms of complexity. The
only device which has been seen to be connected with this MCP code is
the UCB1x00 (UCB1200, UCB1300 etc) devices, and they all use the same
driver. Adding a match table, requiring the codec string to match the
hardware ID read out of the ID register, etc is completely over the top
when we can just read the hardware ID register.
260 lines
6.8 KiB
C
260 lines
6.8 KiB
C
/*
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* linux/include/mfd/ucb1x00.h
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*
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* Copyright (C) 2001 Russell King, All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License.
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*/
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#ifndef UCB1200_H
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#define UCB1200_H
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#include <linux/mfd/mcp.h>
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#include <linux/gpio.h>
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#include <linux/semaphore.h>
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#define UCB_IO_DATA 0x00
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#define UCB_IO_DIR 0x01
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#define UCB_IO_0 (1 << 0)
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#define UCB_IO_1 (1 << 1)
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#define UCB_IO_2 (1 << 2)
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#define UCB_IO_3 (1 << 3)
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#define UCB_IO_4 (1 << 4)
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#define UCB_IO_5 (1 << 5)
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#define UCB_IO_6 (1 << 6)
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#define UCB_IO_7 (1 << 7)
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#define UCB_IO_8 (1 << 8)
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#define UCB_IO_9 (1 << 9)
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#define UCB_IE_RIS 0x02
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#define UCB_IE_FAL 0x03
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#define UCB_IE_STATUS 0x04
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#define UCB_IE_CLEAR 0x04
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#define UCB_IE_ADC (1 << 11)
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#define UCB_IE_TSPX (1 << 12)
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#define UCB_IE_TSMX (1 << 13)
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#define UCB_IE_TCLIP (1 << 14)
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#define UCB_IE_ACLIP (1 << 15)
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#define UCB_IRQ_TSPX 12
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#define UCB_TC_A 0x05
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#define UCB_TC_A_LOOP (1 << 7) /* UCB1200 */
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#define UCB_TC_A_AMPL (1 << 7) /* UCB1300 */
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#define UCB_TC_B 0x06
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#define UCB_TC_B_VOICE_ENA (1 << 3)
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#define UCB_TC_B_CLIP (1 << 4)
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#define UCB_TC_B_ATT (1 << 6)
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#define UCB_TC_B_SIDE_ENA (1 << 11)
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#define UCB_TC_B_MUTE (1 << 13)
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#define UCB_TC_B_IN_ENA (1 << 14)
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#define UCB_TC_B_OUT_ENA (1 << 15)
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#define UCB_AC_A 0x07
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#define UCB_AC_B 0x08
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#define UCB_AC_B_LOOP (1 << 8)
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#define UCB_AC_B_MUTE (1 << 13)
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#define UCB_AC_B_IN_ENA (1 << 14)
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#define UCB_AC_B_OUT_ENA (1 << 15)
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#define UCB_TS_CR 0x09
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#define UCB_TS_CR_TSMX_POW (1 << 0)
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#define UCB_TS_CR_TSPX_POW (1 << 1)
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#define UCB_TS_CR_TSMY_POW (1 << 2)
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#define UCB_TS_CR_TSPY_POW (1 << 3)
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#define UCB_TS_CR_TSMX_GND (1 << 4)
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#define UCB_TS_CR_TSPX_GND (1 << 5)
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#define UCB_TS_CR_TSMY_GND (1 << 6)
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#define UCB_TS_CR_TSPY_GND (1 << 7)
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#define UCB_TS_CR_MODE_INT (0 << 8)
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#define UCB_TS_CR_MODE_PRES (1 << 8)
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#define UCB_TS_CR_MODE_POS (2 << 8)
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#define UCB_TS_CR_BIAS_ENA (1 << 11)
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#define UCB_TS_CR_TSPX_LOW (1 << 12)
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#define UCB_TS_CR_TSMX_LOW (1 << 13)
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#define UCB_ADC_CR 0x0a
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#define UCB_ADC_SYNC_ENA (1 << 0)
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#define UCB_ADC_VREFBYP_CON (1 << 1)
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#define UCB_ADC_INP_TSPX (0 << 2)
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#define UCB_ADC_INP_TSMX (1 << 2)
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#define UCB_ADC_INP_TSPY (2 << 2)
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#define UCB_ADC_INP_TSMY (3 << 2)
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#define UCB_ADC_INP_AD0 (4 << 2)
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#define UCB_ADC_INP_AD1 (5 << 2)
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#define UCB_ADC_INP_AD2 (6 << 2)
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#define UCB_ADC_INP_AD3 (7 << 2)
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#define UCB_ADC_EXT_REF (1 << 5)
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#define UCB_ADC_START (1 << 7)
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#define UCB_ADC_ENA (1 << 15)
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#define UCB_ADC_DATA 0x0b
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#define UCB_ADC_DAT_VAL (1 << 15)
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#define UCB_ADC_DAT(x) (((x) & 0x7fe0) >> 5)
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#define UCB_ID 0x0c
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#define UCB_ID_1200 0x1004
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#define UCB_ID_1300 0x1005
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#define UCB_ID_TC35143 0x9712
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#define UCB_MODE 0x0d
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#define UCB_MODE_DYN_VFLAG_ENA (1 << 12)
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#define UCB_MODE_AUD_OFF_CAN (1 << 13)
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struct ucb1x00_irq {
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void *devid;
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void (*fn)(int, void *);
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};
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struct ucb1x00 {
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spinlock_t lock;
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struct mcp *mcp;
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unsigned int irq;
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struct semaphore adc_sem;
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spinlock_t io_lock;
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u16 id;
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u16 io_dir;
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u16 io_out;
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u16 adc_cr;
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u16 irq_fal_enbl;
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u16 irq_ris_enbl;
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struct ucb1x00_irq irq_handler[16];
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struct device dev;
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struct list_head node;
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struct list_head devs;
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struct gpio_chip gpio;
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};
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struct ucb1x00_driver;
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struct ucb1x00_dev {
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struct list_head dev_node;
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struct list_head drv_node;
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struct ucb1x00 *ucb;
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struct ucb1x00_driver *drv;
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void *priv;
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};
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struct ucb1x00_driver {
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struct list_head node;
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struct list_head devs;
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int (*add)(struct ucb1x00_dev *dev);
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void (*remove)(struct ucb1x00_dev *dev);
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int (*suspend)(struct ucb1x00_dev *dev, pm_message_t state);
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int (*resume)(struct ucb1x00_dev *dev);
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};
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#define classdev_to_ucb1x00(cd) container_of(cd, struct ucb1x00, dev)
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int ucb1x00_register_driver(struct ucb1x00_driver *);
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void ucb1x00_unregister_driver(struct ucb1x00_driver *);
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/**
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* ucb1x00_clkrate - return the UCB1x00 SIB clock rate
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* @ucb: UCB1x00 structure describing chip
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*
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* Return the SIB clock rate in Hz.
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*/
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static inline unsigned int ucb1x00_clkrate(struct ucb1x00 *ucb)
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{
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return mcp_get_sclk_rate(ucb->mcp);
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}
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/**
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* ucb1x00_enable - enable the UCB1x00 SIB clock
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* @ucb: UCB1x00 structure describing chip
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*
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* Enable the SIB clock. This can be called multiple times.
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*/
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static inline void ucb1x00_enable(struct ucb1x00 *ucb)
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{
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mcp_enable(ucb->mcp);
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}
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/**
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* ucb1x00_disable - disable the UCB1x00 SIB clock
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* @ucb: UCB1x00 structure describing chip
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*
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* Disable the SIB clock. The SIB clock will only be disabled
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* when the number of ucb1x00_enable calls match the number of
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* ucb1x00_disable calls.
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*/
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static inline void ucb1x00_disable(struct ucb1x00 *ucb)
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{
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mcp_disable(ucb->mcp);
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}
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/**
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* ucb1x00_reg_write - write a UCB1x00 register
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* @ucb: UCB1x00 structure describing chip
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* @reg: UCB1x00 4-bit register index to write
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* @val: UCB1x00 16-bit value to write
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*
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* Write the UCB1x00 register @reg with value @val. The SIB
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* clock must be running for this function to return.
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*/
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static inline void ucb1x00_reg_write(struct ucb1x00 *ucb, unsigned int reg, unsigned int val)
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{
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mcp_reg_write(ucb->mcp, reg, val);
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}
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/**
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* ucb1x00_reg_read - read a UCB1x00 register
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* @ucb: UCB1x00 structure describing chip
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* @reg: UCB1x00 4-bit register index to write
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*
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* Read the UCB1x00 register @reg and return its value. The SIB
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* clock must be running for this function to return.
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*/
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static inline unsigned int ucb1x00_reg_read(struct ucb1x00 *ucb, unsigned int reg)
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{
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return mcp_reg_read(ucb->mcp, reg);
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}
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/**
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* ucb1x00_set_audio_divisor -
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* @ucb: UCB1x00 structure describing chip
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* @div: SIB clock divisor
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*/
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static inline void ucb1x00_set_audio_divisor(struct ucb1x00 *ucb, unsigned int div)
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{
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mcp_set_audio_divisor(ucb->mcp, div);
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}
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/**
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* ucb1x00_set_telecom_divisor -
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* @ucb: UCB1x00 structure describing chip
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* @div: SIB clock divisor
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*/
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static inline void ucb1x00_set_telecom_divisor(struct ucb1x00 *ucb, unsigned int div)
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{
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mcp_set_telecom_divisor(ucb->mcp, div);
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}
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void ucb1x00_io_set_dir(struct ucb1x00 *ucb, unsigned int, unsigned int);
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void ucb1x00_io_write(struct ucb1x00 *ucb, unsigned int, unsigned int);
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unsigned int ucb1x00_io_read(struct ucb1x00 *ucb);
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#define UCB_NOSYNC (0)
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#define UCB_SYNC (1)
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unsigned int ucb1x00_adc_read(struct ucb1x00 *ucb, int adc_channel, int sync);
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void ucb1x00_adc_enable(struct ucb1x00 *ucb);
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void ucb1x00_adc_disable(struct ucb1x00 *ucb);
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/*
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* Which edges of the IRQ do you want to control today?
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*/
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#define UCB_RISING (1 << 0)
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#define UCB_FALLING (1 << 1)
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int ucb1x00_hook_irq(struct ucb1x00 *ucb, unsigned int idx, void (*fn)(int, void *), void *devid);
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void ucb1x00_enable_irq(struct ucb1x00 *ucb, unsigned int idx, int edges);
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void ucb1x00_disable_irq(struct ucb1x00 *ucb, unsigned int idx, int edges);
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int ucb1x00_free_irq(struct ucb1x00 *ucb, unsigned int idx, void *devid);
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#endif
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