diff options
Diffstat (limited to 'drivers/staging/csr/sdioemb/slot_ushc.h')
| -rw-r--r-- | drivers/staging/csr/sdioemb/slot_ushc.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/drivers/staging/csr/sdioemb/slot_ushc.h b/drivers/staging/csr/sdioemb/slot_ushc.h new file mode 100644 index 000000000000..efe3310ee37c --- /dev/null +++ b/drivers/staging/csr/sdioemb/slot_ushc.h @@ -0,0 +1,133 @@ +/* + * USB Standard Host Controller definitions. + * + * Copyright (C) 2010 Cambridge Silicon Radio Ltd. + * + * Refer to LICENSE.txt included with this source code for details on + * the license terms. + */ +#ifndef _SLOT_USHC_H +#define _SLOT_USHC_H + +#include <oska/io.h> + +enum ushc_request +{ + USHC_GET_CAPS = 0x00, + USHC_HOST_CTRL = 0x01, + USHC_PWR_CTRL = 0x02, + USHC_CLK_FREQ = 0x03, + USHC_EXEC_CMD = 0x04, + USHC_READ_RESP = 0x05, + USHC_RESET = 0x06 +}; + +enum ushc_request_recipient +{ + USHC_RECIPIENT_DEVICE = 0x00, + USHC_RECIPIENT_INTERFACE = 0x01, + USHC_RECIPIENT_ENDPOINT = 0x02, + USHC_RECIPIENT_OTHER = 0x03 +}; + +enum ushc_request_direction +{ + USHC_HOST_TO_DEVICE = 0x00, + USHC_DEVICE_TO_HOST = 0x01 +}; + +struct sdioemb_ushc +{ + struct sdioemb_slot *slot; + + void (*enable_int)(struct sdioemb_slot *slot, uint32_t ints); + void (*disable_int)(struct sdioemb_slot *slot, uint32_t ints); + void (*cmd_complete)(struct sdioemb_slot *slot, struct sdioemb_cmd *cmd); + int (*set_host_ctrl)(struct sdioemb_slot *slot, uint16_t controler_state); + int (*submit_vendor_request)(struct sdioemb_slot *slot, + enum ushc_request request, + enum ushc_request_direction direction, + enum ushc_request_recipient recipient, + uint16_t value, + uint16_t index, + void* io_buffer, + uint32_t io_buffer_length); + int (*submit_cbw_request)(struct sdioemb_slot *slot, uint8_t cmd_index, uint16_t block_size, uint32_t cmd_arg); + int (*submit_data_request)(struct sdioemb_slot *slot, + enum ushc_request_direction direction, + void* request_buffer, + uint32_t request_buffer_length); + int (*submit_csw_request)(struct sdioemb_slot *slot); + + os_spinlock_t lock; + + uint32_t base_clock; + uint32_t controler_capabilities; + uint16_t controler_state; + struct sdioemb_cmd* current_cmd; + +#define DISCONNECTED 0 +#define INT_EN 1 +#define IGNORE_NEXT_INT 2 +#define STOP 4 + uint32_t flags; + +#define USHC_INT_STATUS_SDIO_INT (1 << 1) +#define USHC_INT_STATUS_CARD_PRESENT (1 << 0) + uint8_t interrupt_status; + + size_t block_size; +}; + +#define USHC_GET_CAPS_VERSION_MASK 0xff +#define USHC_GET_CAPS_3V3 (1 << 8) +#define USHC_GET_CAPS_3V0 (1 << 9) +#define USHC_GET_CAPS_1V8 (1 << 10) +#define USHC_GET_CAPS_HIGH_SPD (1 << 16) + +#define USHC_PWR_CTRL_OFF 0x00 +#define USHC_PWR_CTRL_3V3 0x01 +#define USHC_PWR_CTRL_3V0 0x02 +#define USHC_PWR_CTRL_1V8 0x03 + +#define USHC_HOST_CTRL_4BIT (1 << 1) +#define USHC_HOST_CTRL_HIGH_SPD (1 << 0) + +#define USHC_READ_RESP_BUSY (1 << 4) +#define USHC_READ_RESP_ERR_TIMEOUT (1 << 3) +#define USHC_READ_RESP_ERR_CRC (1 << 2) +#define USHC_READ_RESP_ERR_DAT (1 << 1) +#define USHC_READ_RESP_ERR_CMD (1 << 0) +#define USHC_READ_RESP_ERR_MASK 0x0f + +void sdioemb_ushc_init(struct sdioemb_ushc* ushc); +void sdioemb_ushc_clean_up(struct sdioemb_ushc* ushc); + +int sdioemb_ushc_start(struct sdioemb_ushc* ushc); +void sdioemb_ushc_stop(struct sdioemb_ushc* ushc); + +bool sdioemb_ushc_isr(struct sdioemb_ushc* ushc, uint8_t int_stat); + +int sdioemb_ushc_set_bus_freq(struct sdioemb_ushc* ushc, int clk); +int sdioemb_ushc_set_bus_width(struct sdioemb_ushc* ushc, int bus_width); +int sdioemb_ushc_start_cmd(struct sdioemb_ushc* ushc, struct sdioemb_cmd *cmd); +int sdioemb_ushc_card_present(struct sdioemb_ushc* ushc); +int sdioemb_ushc_card_power(struct sdioemb_ushc* ushc, enum sdioemb_power power); +void sdioemb_ushc_enable_card_int(struct sdioemb_ushc* ushc); +void sdioemb_ushc_disable_card_int(struct sdioemb_ushc* ushc); +int sdioemb_ushc_hard_reset(struct sdioemb_ushc* ushc); + +void sdioemb_ushc_command_complete(struct sdioemb_ushc* ushc, uint8_t status, uint32_t respones); + +int ushc_hw_get_caps(struct sdioemb_ushc* ushc); +static int ushc_hw_set_host_ctrl(struct sdioemb_ushc* ushc, uint16_t mask, uint16_t val); +static int ushc_hw_submit_vendor_request(struct sdioemb_ushc* ushc, + enum ushc_request request, + enum ushc_request_recipient recipient, + enum ushc_request_direction direction, + uint16_t value, + uint16_t index, + void* io_buffer, + uint32_t io_buffer_length); + +#endif |