--- /dev/null
+/* -*- linux-c -*- *
+ *
+ * ALSA driver for the digigram lx6464es interface
+ * low-level interface
+ *
+ * Copyright (c) 2009 Tim Blechmann <tim@klingt.org>
+ *
+ * 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, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#ifndef LX_CORE_H
+#define LX_CORE_H
+
+#include <linux/interrupt.h>
+
+#include "lx_defs.h"
+
+#define REG_CRM_NUMBER 12
+
+struct lx6464es;
+
+/* low-level register access */
+
+/* dsp register access */
+enum {
+ eReg_BASE,
+ eReg_CSM,
+ eReg_CRM1,
+ eReg_CRM2,
+ eReg_CRM3,
+ eReg_CRM4,
+ eReg_CRM5,
+ eReg_CRM6,
+ eReg_CRM7,
+ eReg_CRM8,
+ eReg_CRM9,
+ eReg_CRM10,
+ eReg_CRM11,
+ eReg_CRM12,
+
+ eReg_ICR,
+ eReg_CVR,
+ eReg_ISR,
+ eReg_RXHTXH,
+ eReg_RXMTXM,
+ eReg_RHLTXL,
+ eReg_RESETDSP,
+
+ eReg_CSUF,
+ eReg_CSES,
+ eReg_CRESMSB,
+ eReg_CRESLSB,
+ eReg_ADMACESMSB,
+ eReg_ADMACESLSB,
+ eReg_CONFES,
+
+ eMaxPortLx
+};
+
+unsigned long lx_dsp_reg_read(struct lx6464es *chip, int port);
+void lx_dsp_reg_write(struct lx6464es *chip, int port, unsigned data);
+
+/* plx register access */
+enum {
+ ePLX_PCICR,
+
+ ePLX_MBOX0,
+ ePLX_MBOX1,
+ ePLX_MBOX2,
+ ePLX_MBOX3,
+ ePLX_MBOX4,
+ ePLX_MBOX5,
+ ePLX_MBOX6,
+ ePLX_MBOX7,
+
+ ePLX_L2PCIDB,
+ ePLX_IRQCS,
+ ePLX_CHIPSC,
+
+ eMaxPort
+};
+
+unsigned long lx_plx_reg_read(struct lx6464es *chip, int port);
+void lx_plx_reg_write(struct lx6464es *chip, int port, u32 data);
+
+/* rhm */
+struct lx_rmh {
+ u16 cmd_len; /* length of the command to send (WORDs) */
+ u16 stat_len; /* length of the status received (WORDs) */
+ u16 dsp_stat; /* status type, RMP_SSIZE_XXX */
+ u16 cmd_idx; /* index of the command */
+ u32 cmd[REG_CRM_NUMBER];
+ u32 stat[REG_CRM_NUMBER];
+};
+
+
+/* low-level dsp access */
+int lx_dsp_get_version(struct lx6464es *chip, u32 *rdsp_version);
+int lx_dsp_get_clock_frequency(struct lx6464es *chip, u32 *rfreq);
+int lx_dsp_set_granularity(struct lx6464es *chip, u32 gran);
+int lx_dsp_read_async_events(struct lx6464es *chip, u32 *data);
+int lx_dsp_get_mac(struct lx6464es *chip);
+
+
+/* low-level pipe handling */
+int lx_pipe_allocate(struct lx6464es *chip, u32 pipe, int is_capture,
+ int channels);
+int lx_pipe_release(struct lx6464es *chip, u32 pipe, int is_capture);
+int lx_pipe_sample_count(struct lx6464es *chip, u32 pipe, int is_capture,
+ u64 *rsample_count);
+int lx_pipe_state(struct lx6464es *chip, u32 pipe, int is_capture, u16 *rstate);
+int lx_pipe_stop(struct lx6464es *chip, u32 pipe, int is_capture);
+int lx_pipe_start(struct lx6464es *chip, u32 pipe, int is_capture);
+int lx_pipe_pause(struct lx6464es *chip, u32 pipe, int is_capture);
+
+int lx_pipe_wait_for_start(struct lx6464es *chip, u32 pipe, int is_capture);
+int lx_pipe_wait_for_idle(struct lx6464es *chip, u32 pipe, int is_capture);
+
+/* low-level stream handling */
+int lx_stream_set_format(struct lx6464es *chip, struct snd_pcm_runtime *runtime,
+ u32 pipe, int is_capture);
+int lx_stream_state(struct lx6464es *chip, u32 pipe, int is_capture,
+ int *rstate);
+int lx_stream_sample_position(struct lx6464es *chip, u32 pipe, int is_capture,
+ u64 *r_bytepos);
+
+int lx_stream_set_state(struct lx6464es *chip, u32 pipe,
+ int is_capture, enum stream_state_t state);
+
+static inline int lx_stream_start(struct lx6464es *chip, u32 pipe,
+ int is_capture)
+{
+ snd_printdd("->lx_stream_start\n");
+ return lx_stream_set_state(chip, pipe, is_capture, SSTATE_RUN);
+}
+
+static inline int lx_stream_pause(struct lx6464es *chip, u32 pipe,
+ int is_capture)
+{
+ snd_printdd("->lx_stream_pause\n");
+ return lx_stream_set_state(chip, pipe, is_capture, SSTATE_PAUSE);
+}
+
+static inline int lx_stream_stop(struct lx6464es *chip, u32 pipe,
+ int is_capture)
+{
+ snd_printdd("->lx_stream_stop\n");
+ return lx_stream_set_state(chip, pipe, is_capture, SSTATE_STOP);
+}
+
+/* low-level buffer handling */
+int lx_buffer_ask(struct lx6464es *chip, u32 pipe, int is_capture,
+ u32 *r_needed, u32 *r_freed, u32 *size_array);
+int lx_buffer_give(struct lx6464es *chip, u32 pipe, int is_capture,
+ u32 buffer_size, u32 buf_address_lo, u32 buf_address_hi,
+ u32 *r_buffer_index);
+int lx_buffer_free(struct lx6464es *chip, u32 pipe, int is_capture,
+ u32 *r_buffer_size);
+int lx_buffer_cancel(struct lx6464es *chip, u32 pipe, int is_capture,
+ u32 buffer_index);
+
+/* low-level gain/peak handling */
+int lx_level_unmute(struct lx6464es *chip, int is_capture, int unmute);
+int lx_level_peaks(struct lx6464es *chip, int is_capture, int channels,
+ u32 *r_levels);
+
+
+/* interrupt handling */
+irqreturn_t lx_interrupt(int irq, void *dev_id);
+irqreturn_t lx_threaded_irq(int irq, void *dev_id);
+void lx_irq_enable(struct lx6464es *chip);
+void lx_irq_disable(struct lx6464es *chip);
+
+
+/* Stream Format Header Defines (for LIN and IEEE754) */
+#define HEADER_FMT_BASE HEADER_FMT_BASE_LIN
+#define HEADER_FMT_BASE_LIN 0xFED00000
+#define HEADER_FMT_BASE_FLOAT 0xFAD00000
+#define HEADER_FMT_MONO 0x00000080 /* bit 23 in header_lo. WARNING: old
+ * bit 22 is ignored in float
+ * format */
+#define HEADER_FMT_INTEL 0x00008000
+#define HEADER_FMT_16BITS 0x00002000
+#define HEADER_FMT_24BITS 0x00004000
+#define HEADER_FMT_UPTO11 0x00000200 /* frequency is less or equ. to 11k.
+ * */
+#define HEADER_FMT_UPTO32 0x00000100 /* frequency is over 11k and less
+ * then 32k.*/
+
+
+#define BIT_FMP_HEADER 23
+#define BIT_FMP_SD 22
+#define BIT_FMP_MULTICHANNEL 19
+
+#define START_STATE 1
+#define PAUSE_STATE 0
+
+
+
+
+
+/* from PcxAll_e.h */
+/* Start/Pause condition for pipes (PCXStartPipe, PCXPausePipe) */
+#define START_PAUSE_IMMEDIATE 0
+#define START_PAUSE_ON_SYNCHRO 1
+#define START_PAUSE_ON_TIME_CODE 2
+
+
+/* Pipe / Stream state */
+#define START_STATE 1
+#define PAUSE_STATE 0
+
+static inline void unpack_pointer(dma_addr_t ptr, u32 *r_low, u32 *r_high)
+{
+ *r_low = (u32)(ptr & 0xffffffff);
+#if BITS_PER_LONG == 32
+ *r_high = 0;
+#else
+ *r_high = (u32)((u64)ptr>>32);
+#endif
+}
+
+#endif /* LX_CORE_H */
Code Review / kvmfornfv.git / blobdiff