| /* |
| * linux/include/mfd/ucb1x00.h |
| * |
| * Copyright (C) 2001 Russell King, All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License. |
| */ |
| #ifndef UCB1200_H |
| #define UCB1200_H |
| |
| #include <linux/mfd/mcp.h> |
| #include <linux/gpio.h> |
| #include <linux/semaphore.h> |
| |
| #define UCB_IO_DATA 0x00 |
| #define UCB_IO_DIR 0x01 |
| |
| #define UCB_IO_0 (1 << 0) |
| #define UCB_IO_1 (1 << 1) |
| #define UCB_IO_2 (1 << 2) |
| #define UCB_IO_3 (1 << 3) |
| #define UCB_IO_4 (1 << 4) |
| #define UCB_IO_5 (1 << 5) |
| #define UCB_IO_6 (1 << 6) |
| #define UCB_IO_7 (1 << 7) |
| #define UCB_IO_8 (1 << 8) |
| #define UCB_IO_9 (1 << 9) |
| |
| #define UCB_IE_RIS 0x02 |
| #define UCB_IE_FAL 0x03 |
| #define UCB_IE_STATUS 0x04 |
| #define UCB_IE_CLEAR 0x04 |
| #define UCB_IE_ADC (1 << 11) |
| #define UCB_IE_TSPX (1 << 12) |
| #define UCB_IE_TSMX (1 << 13) |
| #define UCB_IE_TCLIP (1 << 14) |
| #define UCB_IE_ACLIP (1 << 15) |
| |
| #define UCB_IRQ_TSPX 12 |
| |
| #define UCB_TC_A 0x05 |
| #define UCB_TC_A_LOOP (1 << 7) /* UCB1200 */ |
| #define UCB_TC_A_AMPL (1 << 7) /* UCB1300 */ |
| |
| #define UCB_TC_B 0x06 |
| #define UCB_TC_B_VOICE_ENA (1 << 3) |
| #define UCB_TC_B_CLIP (1 << 4) |
| #define UCB_TC_B_ATT (1 << 6) |
| #define UCB_TC_B_SIDE_ENA (1 << 11) |
| #define UCB_TC_B_MUTE (1 << 13) |
| #define UCB_TC_B_IN_ENA (1 << 14) |
| #define UCB_TC_B_OUT_ENA (1 << 15) |
| |
| #define UCB_AC_A 0x07 |
| #define UCB_AC_B 0x08 |
| #define UCB_AC_B_LOOP (1 << 8) |
| #define UCB_AC_B_MUTE (1 << 13) |
| #define UCB_AC_B_IN_ENA (1 << 14) |
| #define UCB_AC_B_OUT_ENA (1 << 15) |
| |
| #define UCB_TS_CR 0x09 |
| #define UCB_TS_CR_TSMX_POW (1 << 0) |
| #define UCB_TS_CR_TSPX_POW (1 << 1) |
| #define UCB_TS_CR_TSMY_POW (1 << 2) |
| #define UCB_TS_CR_TSPY_POW (1 << 3) |
| #define UCB_TS_CR_TSMX_GND (1 << 4) |
| #define UCB_TS_CR_TSPX_GND (1 << 5) |
| #define UCB_TS_CR_TSMY_GND (1 << 6) |
| #define UCB_TS_CR_TSPY_GND (1 << 7) |
| #define UCB_TS_CR_MODE_INT (0 << 8) |
| #define UCB_TS_CR_MODE_PRES (1 << 8) |
| #define UCB_TS_CR_MODE_POS (2 << 8) |
| #define UCB_TS_CR_BIAS_ENA (1 << 11) |
| #define UCB_TS_CR_TSPX_LOW (1 << 12) |
| #define UCB_TS_CR_TSMX_LOW (1 << 13) |
| |
| #define UCB_ADC_CR 0x0a |
| #define UCB_ADC_SYNC_ENA (1 << 0) |
| #define UCB_ADC_VREFBYP_CON (1 << 1) |
| #define UCB_ADC_INP_TSPX (0 << 2) |
| #define UCB_ADC_INP_TSMX (1 << 2) |
| #define UCB_ADC_INP_TSPY (2 << 2) |
| #define UCB_ADC_INP_TSMY (3 << 2) |
| #define UCB_ADC_INP_AD0 (4 << 2) |
| #define UCB_ADC_INP_AD1 (5 << 2) |
| #define UCB_ADC_INP_AD2 (6 << 2) |
| #define UCB_ADC_INP_AD3 (7 << 2) |
| #define UCB_ADC_EXT_REF (1 << 5) |
| #define UCB_ADC_START (1 << 7) |
| #define UCB_ADC_ENA (1 << 15) |
| |
| #define UCB_ADC_DATA 0x0b |
| #define UCB_ADC_DAT_VAL (1 << 15) |
| #define UCB_ADC_DAT(x) (((x) & 0x7fe0) >> 5) |
| |
| #define UCB_ID 0x0c |
| #define UCB_ID_1200 0x1004 |
| #define UCB_ID_1300 0x1005 |
| #define UCB_ID_TC35143 0x9712 |
| |
| #define UCB_MODE 0x0d |
| #define UCB_MODE_DYN_VFLAG_ENA (1 << 12) |
| #define UCB_MODE_AUD_OFF_CAN (1 << 13) |
| |
| struct ucb1x00_plat_data { |
| int gpio_base; |
| }; |
| |
| struct ucb1x00_irq { |
| void *devid; |
| void (*fn)(int, void *); |
| }; |
| |
| struct ucb1x00 { |
| spinlock_t lock; |
| struct mcp *mcp; |
| unsigned int irq; |
| struct semaphore adc_sem; |
| spinlock_t io_lock; |
| const struct mcp_device_id *id; |
| u16 io_dir; |
| u16 io_out; |
| u16 adc_cr; |
| u16 irq_fal_enbl; |
| u16 irq_ris_enbl; |
| struct ucb1x00_irq irq_handler[16]; |
| struct device dev; |
| struct list_head node; |
| struct list_head devs; |
| struct gpio_chip gpio; |
| }; |
| |
| struct ucb1x00_driver; |
| |
| struct ucb1x00_dev { |
| struct list_head dev_node; |
| struct list_head drv_node; |
| struct ucb1x00 *ucb; |
| struct ucb1x00_driver *drv; |
| void *priv; |
| }; |
| |
| struct ucb1x00_driver { |
| struct list_head node; |
| struct list_head devs; |
| int (*add)(struct ucb1x00_dev *dev); |
| void (*remove)(struct ucb1x00_dev *dev); |
| int (*suspend)(struct ucb1x00_dev *dev, pm_message_t state); |
| int (*resume)(struct ucb1x00_dev *dev); |
| }; |
| |
| #define classdev_to_ucb1x00(cd) container_of(cd, struct ucb1x00, dev) |
| |
| int ucb1x00_register_driver(struct ucb1x00_driver *); |
| void ucb1x00_unregister_driver(struct ucb1x00_driver *); |
| |
| /** |
| * ucb1x00_clkrate - return the UCB1x00 SIB clock rate |
| * @ucb: UCB1x00 structure describing chip |
| * |
| * Return the SIB clock rate in Hz. |
| */ |
| static inline unsigned int ucb1x00_clkrate(struct ucb1x00 *ucb) |
| { |
| return mcp_get_sclk_rate(ucb->mcp); |
| } |
| |
| /** |
| * ucb1x00_enable - enable the UCB1x00 SIB clock |
| * @ucb: UCB1x00 structure describing chip |
| * |
| * Enable the SIB clock. This can be called multiple times. |
| */ |
| static inline void ucb1x00_enable(struct ucb1x00 *ucb) |
| { |
| mcp_enable(ucb->mcp); |
| } |
| |
| /** |
| * ucb1x00_disable - disable the UCB1x00 SIB clock |
| * @ucb: UCB1x00 structure describing chip |
| * |
| * Disable the SIB clock. The SIB clock will only be disabled |
| * when the number of ucb1x00_enable calls match the number of |
| * ucb1x00_disable calls. |
| */ |
| static inline void ucb1x00_disable(struct ucb1x00 *ucb) |
| { |
| mcp_disable(ucb->mcp); |
| } |
| |
| /** |
| * ucb1x00_reg_write - write a UCB1x00 register |
| * @ucb: UCB1x00 structure describing chip |
| * @reg: UCB1x00 4-bit register index to write |
| * @val: UCB1x00 16-bit value to write |
| * |
| * Write the UCB1x00 register @reg with value @val. The SIB |
| * clock must be running for this function to return. |
| */ |
| static inline void ucb1x00_reg_write(struct ucb1x00 *ucb, unsigned int reg, unsigned int val) |
| { |
| mcp_reg_write(ucb->mcp, reg, val); |
| } |
| |
| /** |
| * ucb1x00_reg_read - read a UCB1x00 register |
| * @ucb: UCB1x00 structure describing chip |
| * @reg: UCB1x00 4-bit register index to write |
| * |
| * Read the UCB1x00 register @reg and return its value. The SIB |
| * clock must be running for this function to return. |
| */ |
| static inline unsigned int ucb1x00_reg_read(struct ucb1x00 *ucb, unsigned int reg) |
| { |
| return mcp_reg_read(ucb->mcp, reg); |
| } |
| /** |
| * ucb1x00_set_audio_divisor - |
| * @ucb: UCB1x00 structure describing chip |
| * @div: SIB clock divisor |
| */ |
| static inline void ucb1x00_set_audio_divisor(struct ucb1x00 *ucb, unsigned int div) |
| { |
| mcp_set_audio_divisor(ucb->mcp, div); |
| } |
| |
| /** |
| * ucb1x00_set_telecom_divisor - |
| * @ucb: UCB1x00 structure describing chip |
| * @div: SIB clock divisor |
| */ |
| static inline void ucb1x00_set_telecom_divisor(struct ucb1x00 *ucb, unsigned int div) |
| { |
| mcp_set_telecom_divisor(ucb->mcp, div); |
| } |
| |
| void ucb1x00_io_set_dir(struct ucb1x00 *ucb, unsigned int, unsigned int); |
| void ucb1x00_io_write(struct ucb1x00 *ucb, unsigned int, unsigned int); |
| unsigned int ucb1x00_io_read(struct ucb1x00 *ucb); |
| |
| #define UCB_NOSYNC (0) |
| #define UCB_SYNC (1) |
| |
| unsigned int ucb1x00_adc_read(struct ucb1x00 *ucb, int adc_channel, int sync); |
| void ucb1x00_adc_enable(struct ucb1x00 *ucb); |
| void ucb1x00_adc_disable(struct ucb1x00 *ucb); |
| |
| /* |
| * Which edges of the IRQ do you want to control today? |
| */ |
| #define UCB_RISING (1 << 0) |
| #define UCB_FALLING (1 << 1) |
| |
| int ucb1x00_hook_irq(struct ucb1x00 *ucb, unsigned int idx, void (*fn)(int, void *), void *devid); |
| void ucb1x00_enable_irq(struct ucb1x00 *ucb, unsigned int idx, int edges); |
| void ucb1x00_disable_irq(struct ucb1x00 *ucb, unsigned int idx, int edges); |
| int ucb1x00_free_irq(struct ucb1x00 *ucb, unsigned int idx, void *devid); |
| |
| #endif |