summaryrefslogtreecommitdiffstats
path: root/include/asm-blackfin/bfin_sport.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-blackfin/bfin_sport.h')
-rw-r--r--include/asm-blackfin/bfin_sport.h175
1 files changed, 175 insertions, 0 deletions
diff --git a/include/asm-blackfin/bfin_sport.h b/include/asm-blackfin/bfin_sport.h
new file mode 100644
index 0000000..c76ed8d
--- /dev/null
+++ b/include/asm-blackfin/bfin_sport.h
@@ -0,0 +1,175 @@
+/*
+ * File: include/asm-blackfin/bfin_sport.h
+ * Based on:
+ * Author: Roy Huang (roy.huang@analog.com)
+ *
+ * Created: Thu Aug. 24 2006
+ * Description:
+ *
+ * Modified:
+ * Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.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; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __BFIN_SPORT_H__
+#define __BFIN_SPORT_H__
+
+#define SPORT_MAJOR 237
+#define SPORT_NR_DEVS 2
+
+/* Sport mode: it can be set to TDM, i2s or others */
+#define NORM_MODE 0x0
+#define TDM_MODE 0x1
+#define I2S_MODE 0x2
+
+/* Data format, normal, a-law or u-law */
+#define NORM_FORMAT 0x0
+#define ALAW_FORMAT 0x2
+#define ULAW_FORMAT 0x3
+struct sport_register;
+
+/* Function driver which use sport must initialize the structure */
+struct sport_config {
+ /*TDM (multichannels), I2S or other mode */
+ unsigned int mode:3;
+
+ /* if TDM mode is selected, channels must be set */
+ int channels; /* Must be in 8 units */
+ unsigned int frame_delay:4; /* Delay between frame sync pulse and first bit */
+
+ /* I2S mode */
+ unsigned int right_first:1; /* Right stereo channel first */
+
+ /* In mormal mode, the following item need to be set */
+ unsigned int lsb_first:1; /* order of transmit or receive data */
+ unsigned int fsync:1; /* Frame sync required */
+ unsigned int data_indep:1; /* data independent frame sync generated */
+ unsigned int act_low:1; /* Active low TFS */
+ unsigned int late_fsync:1; /* Late frame sync */
+ unsigned int tckfe:1;
+ unsigned int sec_en:1; /* Secondary side enabled */
+
+ /* Choose clock source */
+ unsigned int int_clk:1; /* Internal or external clock */
+
+ /* If external clock is used, the following fields are ignored */
+ int serial_clk;
+ int fsync_clk;
+
+ unsigned int data_format:2; /*Normal, u-law or a-law */
+
+ int word_len; /* How length of the word in bits, 3-32 bits */
+ int dma_enabled;
+};
+
+struct sport_register {
+ unsigned short tcr1;
+ unsigned short reserved0;
+ unsigned short tcr2;
+ unsigned short reserved1;
+ unsigned short tclkdiv;
+ unsigned short reserved2;
+ unsigned short tfsdiv;
+ unsigned short reserved3;
+ unsigned long tx;
+ unsigned long reserved_l0;
+ unsigned long rx;
+ unsigned long reserved_l1;
+ unsigned short rcr1;
+ unsigned short reserved4;
+ unsigned short rcr2;
+ unsigned short reserved5;
+ unsigned short rclkdiv;
+ unsigned short reserved6;
+ unsigned short rfsdiv;
+ unsigned short reserved7;
+ unsigned short stat;
+ unsigned short reserved8;
+ unsigned short chnl;
+ unsigned short reserved9;
+ unsigned short mcmc1;
+ unsigned short reserved10;
+ unsigned short mcmc2;
+ unsigned short reserved11;
+ unsigned long mtcs0;
+ unsigned long mtcs1;
+ unsigned long mtcs2;
+ unsigned long mtcs3;
+ unsigned long mrcs0;
+ unsigned long mrcs1;
+ unsigned long mrcs2;
+ unsigned long mrcs3;
+};
+
+#define SPORT_IOC_MAGIC 'P'
+#define SPORT_IOC_CONFIG _IOWR('P', 0x01, struct sport_config)
+
+/* Test purpose */
+#define ENABLE_AD73311 _IOWR('P', 0x02, int)
+
+struct sport_dev {
+ struct cdev cdev; /* Char device structure */
+
+ int sport_num;
+
+ int dma_rx_chan;
+ int dma_tx_chan;
+
+ int rx_irq;
+ unsigned char *rx_buf; /* Buffer store the received data */
+ int rx_len; /* How many bytes will be received */
+ int rx_received; /* How many bytes has been received */
+
+ int tx_irq;
+ const unsigned char *tx_buf;
+ int tx_len;
+ int tx_sent;
+
+ int sport_err_irq;
+
+ struct mutex mutex; /* mutual exclusion semaphore */
+ struct task_struct *task;
+
+ wait_queue_head_t waitq;
+ int wait_con;
+ struct sport_register *regs;
+ struct sport_config config;
+};
+
+#define SPORT_TCR1 0
+#define SPORT_TCR2 1
+#define SPORT_TCLKDIV 2
+#define SPORT_TFSDIV 3
+#define SPORT_RCR1 8
+#define SPORT_RCR2 9
+#define SPORT_RCLKDIV 10
+#define SPORT_RFSDIV 11
+#define SPORT_CHANNEL 13
+#define SPORT_MCMC1 14
+#define SPORT_MCMC2 15
+#define SPORT_MTCS0 16
+#define SPORT_MTCS1 17
+#define SPORT_MTCS2 18
+#define SPORT_MTCS3 19
+#define SPORT_MRCS0 20
+#define SPORT_MRCS1 21
+#define SPORT_MRCS2 22
+#define SPORT_MRCS3 23
+
+#endif /*__BFIN_SPORT_H__*/
OpenPOWER on IntegriCloud