--- /dev/null
+/*
+ * Driver for Digigram pcxhr compatible soundcards
+ *
+ * low level interface with interrupt and message handling implementation
+ *
+ * Copyright (c) 2004 by Digigram <alsa@digigram.com>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+#include <sound/core.h>
+#include "pcxhr.h"
+#include "pcxhr_mixer.h"
+#include "pcxhr_hwdep.h"
+#include "pcxhr_core.h"
+
+
+/* registers used on the PLX (port 1) */
+#define PCXHR_PLX_OFFSET_MIN 0x40
+#define PCXHR_PLX_MBOX0 0x40
+#define PCXHR_PLX_MBOX1 0x44
+#define PCXHR_PLX_MBOX2 0x48
+#define PCXHR_PLX_MBOX3 0x4C
+#define PCXHR_PLX_MBOX4 0x50
+#define PCXHR_PLX_MBOX5 0x54
+#define PCXHR_PLX_MBOX6 0x58
+#define PCXHR_PLX_MBOX7 0x5C
+#define PCXHR_PLX_L2PCIDB 0x64
+#define PCXHR_PLX_IRQCS 0x68
+#define PCXHR_PLX_CHIPSC 0x6C
+
+/* registers used on the DSP (port 2) */
+#define PCXHR_DSP_ICR 0x00
+#define PCXHR_DSP_CVR 0x04
+#define PCXHR_DSP_ISR 0x08
+#define PCXHR_DSP_IVR 0x0C
+#define PCXHR_DSP_RXH 0x14
+#define PCXHR_DSP_TXH 0x14
+#define PCXHR_DSP_RXM 0x18
+#define PCXHR_DSP_TXM 0x18
+#define PCXHR_DSP_RXL 0x1C
+#define PCXHR_DSP_TXL 0x1C
+#define PCXHR_DSP_RESET 0x20
+#define PCXHR_DSP_OFFSET_MAX 0x20
+
+/* access to the card */
+#define PCXHR_PLX 1
+#define PCXHR_DSP 2
+
+#if (PCXHR_DSP_OFFSET_MAX > PCXHR_PLX_OFFSET_MIN)
+#undef PCXHR_REG_TO_PORT(x)
+#else
+#define PCXHR_REG_TO_PORT(x) ((x)>PCXHR_DSP_OFFSET_MAX ? PCXHR_PLX : PCXHR_DSP)
+#endif
+#define PCXHR_INPB(mgr,x) inb((mgr)->port[PCXHR_REG_TO_PORT(x)] + (x))
+#define PCXHR_INPL(mgr,x) inl((mgr)->port[PCXHR_REG_TO_PORT(x)] + (x))
+#define PCXHR_OUTPB(mgr,x,data) outb((data), (mgr)->port[PCXHR_REG_TO_PORT(x)] + (x))
+#define PCXHR_OUTPL(mgr,x,data) outl((data), (mgr)->port[PCXHR_REG_TO_PORT(x)] + (x))
+/* attention : access the PCXHR_DSP_* registers with inb and outb only ! */
+
+/* params used with PCXHR_PLX_MBOX0 */
+#define PCXHR_MBOX0_HF5 (1 << 0)
+#define PCXHR_MBOX0_HF4 (1 << 1)
+#define PCXHR_MBOX0_BOOT_HERE (1 << 23)
+/* params used with PCXHR_PLX_IRQCS */
+#define PCXHR_IRQCS_ENABLE_PCIIRQ (1 << 8)
+#define PCXHR_IRQCS_ENABLE_PCIDB (1 << 9)
+#define PCXHR_IRQCS_ACTIVE_PCIDB (1 << 13)
+/* params used with PCXHR_PLX_CHIPSC */
+#define PCXHR_CHIPSC_INIT_VALUE 0x100D767E
+#define PCXHR_CHIPSC_RESET_XILINX (1 << 16)
+#define PCXHR_CHIPSC_GPI_USERI (1 << 17)
+#define PCXHR_CHIPSC_DATA_CLK (1 << 24)
+#define PCXHR_CHIPSC_DATA_IN (1 << 26)
+
+/* params used with PCXHR_DSP_ICR */
+#define PCXHR_ICR_HI08_RREQ 0x01
+#define PCXHR_ICR_HI08_TREQ 0x02
+#define PCXHR_ICR_HI08_HDRQ 0x04
+#define PCXHR_ICR_HI08_HF0 0x08
+#define PCXHR_ICR_HI08_HF1 0x10
+#define PCXHR_ICR_HI08_HLEND 0x20
+#define PCXHR_ICR_HI08_INIT 0x80
+/* params used with PCXHR_DSP_CVR */
+#define PCXHR_CVR_HI08_HC 0x80
+/* params used with PCXHR_DSP_ISR */
+#define PCXHR_ISR_HI08_RXDF 0x01
+#define PCXHR_ISR_HI08_TXDE 0x02
+#define PCXHR_ISR_HI08_TRDY 0x04
+#define PCXHR_ISR_HI08_ERR 0x08
+#define PCXHR_ISR_HI08_CHK 0x10
+#define PCXHR_ISR_HI08_HREQ 0x80
+
+
+/* constants used for delay in msec */
+#define PCXHR_WAIT_DEFAULT 2
+#define PCXHR_WAIT_IT 25
+#define PCXHR_WAIT_IT_EXTRA 65
+
+/*
+ * pcxhr_check_reg_bit - wait for the specified bit is set/reset on a register
+ * @reg: register to check
+ * @mask: bit mask
+ * @bit: resultant bit to be checked
+ * @time: time-out of loop in msec
+ *
+ * returns zero if a bit matches, or a negative error code.
+ */
+static int pcxhr_check_reg_bit(struct pcxhr_mgr *mgr, unsigned int reg,
+ unsigned char mask, unsigned char bit, int time,
+ unsigned char* read)
+{
+ int i = 0;
+ unsigned long end_time = jiffies + (time * HZ + 999) / 1000;
+ do {
+ *read = PCXHR_INPB(mgr, reg);
+ if ((*read & mask) == bit) {
+ if (i > 100)
+ snd_printdd("ATTENTION! check_reg(%x) loopcount=%d\n",
+ reg, i);
+ return 0;
+ }
+ i++;
+ } while (time_after_eq(end_time, jiffies));
+ snd_printk(KERN_ERR "pcxhr_check_reg_bit: timeout, reg=%x, mask=0x%x, val=0x%x\n",
+ reg, mask, *read);
+ return -EIO;
+}
+
+/* constants used with pcxhr_check_reg_bit() */
+#define PCXHR_TIMEOUT_DSP 200
+
+
+#define PCXHR_MASK_EXTRA_INFO 0x0000FE
+#define PCXHR_MASK_IT_HF0 0x000100
+#define PCXHR_MASK_IT_HF1 0x000200
+#define PCXHR_MASK_IT_NO_HF0_HF1 0x000400
+#define PCXHR_MASK_IT_MANAGE_HF5 0x000800
+#define PCXHR_MASK_IT_WAIT 0x010000
+#define PCXHR_MASK_IT_WAIT_EXTRA 0x020000
+
+#define PCXHR_IT_SEND_BYTE_XILINX (0x0000003C | PCXHR_MASK_IT_HF0)
+#define PCXHR_IT_TEST_XILINX (0x0000003C | PCXHR_MASK_IT_HF1 | \
+ PCXHR_MASK_IT_MANAGE_HF5)
+#define PCXHR_IT_DOWNLOAD_BOOT (0x0000000C | PCXHR_MASK_IT_HF1 | \
+ PCXHR_MASK_IT_MANAGE_HF5 | PCXHR_MASK_IT_WAIT)
+#define PCXHR_IT_RESET_BOARD_FUNC (0x0000000C | PCXHR_MASK_IT_HF0 | \
+ PCXHR_MASK_IT_MANAGE_HF5 | PCXHR_MASK_IT_WAIT_EXTRA)
+#define PCXHR_IT_DOWNLOAD_DSP (0x0000000C | \
+ PCXHR_MASK_IT_MANAGE_HF5 | PCXHR_MASK_IT_WAIT)
+#define PCXHR_IT_DEBUG (0x0000005A | PCXHR_MASK_IT_NO_HF0_HF1)
+#define PCXHR_IT_RESET_SEMAPHORE (0x0000005C | PCXHR_MASK_IT_NO_HF0_HF1)
+#define PCXHR_IT_MESSAGE (0x00000074 | PCXHR_MASK_IT_NO_HF0_HF1)
+#define PCXHR_IT_RESET_CHK (0x00000076 | PCXHR_MASK_IT_NO_HF0_HF1)
+#define PCXHR_IT_UPDATE_RBUFFER (0x00000078 | PCXHR_MASK_IT_NO_HF0_HF1)
+
+static int pcxhr_send_it_dsp(struct pcxhr_mgr *mgr, unsigned int itdsp, int atomic)
+{
+ int err;
+ unsigned char reg;
+
+ if (itdsp & PCXHR_MASK_IT_MANAGE_HF5) {
+ /* clear hf5 bit */
+ PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0,
+ PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & ~PCXHR_MBOX0_HF5);
+ }
+ if ((itdsp & PCXHR_MASK_IT_NO_HF0_HF1) == 0) {
+ reg = PCXHR_ICR_HI08_RREQ | PCXHR_ICR_HI08_TREQ | PCXHR_ICR_HI08_HDRQ;
+ if (itdsp & PCXHR_MASK_IT_HF0)
+ reg |= PCXHR_ICR_HI08_HF0;
+ if (itdsp & PCXHR_MASK_IT_HF1)
+ reg |= PCXHR_ICR_HI08_HF1;
+ PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg);
+ }
+ reg = (unsigned char)(((itdsp & PCXHR_MASK_EXTRA_INFO) >> 1) | PCXHR_CVR_HI08_HC);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_CVR, reg);
+ if (itdsp & PCXHR_MASK_IT_WAIT) {
+ if (atomic)
+ mdelay(PCXHR_WAIT_IT);
+ else
+ msleep(PCXHR_WAIT_IT);
+ }
+ if (itdsp & PCXHR_MASK_IT_WAIT_EXTRA) {
+ if (atomic)
+ mdelay(PCXHR_WAIT_IT_EXTRA);
+ else
+ msleep(PCXHR_WAIT_IT);
+ }
+ /* wait for CVR_HI08_HC == 0 */
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_CVR, PCXHR_CVR_HI08_HC, 0,
+ PCXHR_TIMEOUT_DSP, ®);
+ if (err) {
+ snd_printk(KERN_ERR "pcxhr_send_it_dsp : TIMEOUT CVR\n");
+ return err;
+ }
+ if (itdsp & PCXHR_MASK_IT_MANAGE_HF5) {
+ /* wait for hf5 bit */
+ err = pcxhr_check_reg_bit(mgr, PCXHR_PLX_MBOX0, PCXHR_MBOX0_HF5,
+ PCXHR_MBOX0_HF5, PCXHR_TIMEOUT_DSP, ®);
+ if (err) {
+ snd_printk(KERN_ERR "pcxhr_send_it_dsp : TIMEOUT HF5\n");
+ return err;
+ }
+ }
+ return 0; /* retry not handled here */
+}
+
+void pcxhr_reset_xilinx_com(struct pcxhr_mgr *mgr)
+{
+ /* reset second xilinx */
+ PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC,
+ PCXHR_CHIPSC_INIT_VALUE & ~PCXHR_CHIPSC_RESET_XILINX);
+}
+
+static void pcxhr_enable_irq(struct pcxhr_mgr *mgr, int enable)
+{
+ unsigned int reg = PCXHR_INPL(mgr, PCXHR_PLX_IRQCS);
+ /* enable/disable interrupts */
+ if (enable)
+ reg |= (PCXHR_IRQCS_ENABLE_PCIIRQ | PCXHR_IRQCS_ENABLE_PCIDB);
+ else
+ reg &= ~(PCXHR_IRQCS_ENABLE_PCIIRQ | PCXHR_IRQCS_ENABLE_PCIDB);
+ PCXHR_OUTPL(mgr, PCXHR_PLX_IRQCS, reg);
+}
+
+void pcxhr_reset_dsp(struct pcxhr_mgr *mgr)
+{
+ /* disable interrupts */
+ pcxhr_enable_irq(mgr, 0);
+
+ /* let's reset the DSP */
+ PCXHR_OUTPB(mgr, PCXHR_DSP_RESET, 0);
+ msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */
+ PCXHR_OUTPB(mgr, PCXHR_DSP_RESET, 3);
+ msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */
+
+ /* reset mailbox */
+ PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0, 0);
+}
+
+void pcxhr_enable_dsp(struct pcxhr_mgr *mgr)
+{
+ /* enable interrupts */
+ pcxhr_enable_irq(mgr, 1);
+}
+
+/*
+ * load the xilinx image
+ */
+int pcxhr_load_xilinx_binary(struct pcxhr_mgr *mgr, const struct firmware *xilinx, int second)
+{
+ unsigned int i;
+ unsigned int chipsc;
+ unsigned char data;
+ unsigned char mask;
+ unsigned char *image;
+
+ /* test first xilinx */
+ chipsc = PCXHR_INPL(mgr, PCXHR_PLX_CHIPSC);
+ /* REV01 cards do not support the PCXHR_CHIPSC_GPI_USERI bit anymore */
+ /* this bit will always be 1; no possibility to test presence of first xilinx */
+ if(second) {
+ if ((chipsc & PCXHR_CHIPSC_GPI_USERI) == 0) {
+ snd_printk(KERN_ERR "error loading first xilinx\n");
+ return -EINVAL;
+ }
+ /* activate second xilinx */
+ chipsc |= PCXHR_CHIPSC_RESET_XILINX;
+ PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc);
+ msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */
+ }
+ image = xilinx->data;
+ for (i = 0; i < xilinx->size; i++, image++) {
+ data = *image;
+ mask = 0x80;
+ while (mask) {
+ chipsc &= ~(PCXHR_CHIPSC_DATA_CLK | PCXHR_CHIPSC_DATA_IN);
+ if (data & mask)
+ chipsc |= PCXHR_CHIPSC_DATA_IN;
+ PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc);
+ chipsc |= PCXHR_CHIPSC_DATA_CLK;
+ PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc);
+ mask >>= 1;
+ }
+ /* don't take too much time in this loop... */
+ cond_resched();
+ }
+ chipsc &= ~(PCXHR_CHIPSC_DATA_CLK | PCXHR_CHIPSC_DATA_IN);
+ PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc);
+ /* wait 2 msec (time to boot the xilinx before any access) */
+ msleep( PCXHR_WAIT_DEFAULT );
+ return 0;
+}
+
+/*
+ * send an executable file to the DSP
+ */
+static int pcxhr_download_dsp(struct pcxhr_mgr *mgr, const struct firmware *dsp)
+{
+ int err;
+ unsigned int i;
+ unsigned int len;
+ unsigned char *data;
+ unsigned char dummy;
+ /* check the length of boot image */
+ snd_assert(dsp->size > 0, return -EINVAL);
+ snd_assert(dsp->size % 3 == 0, return -EINVAL);
+ snd_assert(dsp->data, return -EINVAL);
+ /* transfert data buffer from PC to DSP */
+ for (i = 0; i < dsp->size; i += 3) {
+ data = dsp->data + i;
+ if (i == 0) {
+ /* test data header consistency */
+ len = (unsigned int)((data[0]<<16) + (data[1]<<8) + data[2]);
+ snd_assert((len==0) || (dsp->size == (len+2)*3), return -EINVAL);
+ }
+ /* wait DSP ready for new transfer */
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_TRDY,
+ PCXHR_ISR_HI08_TRDY, PCXHR_TIMEOUT_DSP, &dummy);
+ if (err) {
+ snd_printk(KERN_ERR "dsp loading error at position %d\n", i);
+ return err;
+ }
+ /* send host data */
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, data[0]);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, data[1]);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, data[2]);
+
+ /* don't take too much time in this loop... */
+ cond_resched();
+ }
+ /* give some time to boot the DSP */
+ msleep(PCXHR_WAIT_DEFAULT);
+ return 0;
+}
+
+/*
+ * load the eeprom image
+ */
+int pcxhr_load_eeprom_binary(struct pcxhr_mgr *mgr, const struct firmware *eeprom)
+{
+ int err;
+ unsigned char reg;
+
+ /* init value of the ICR register */
+ reg = PCXHR_ICR_HI08_RREQ | PCXHR_ICR_HI08_TREQ | PCXHR_ICR_HI08_HDRQ;
+ if (PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & PCXHR_MBOX0_BOOT_HERE) {
+ /* no need to load the eeprom binary, but init the HI08 interface */
+ PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg | PCXHR_ICR_HI08_INIT);
+ msleep(PCXHR_WAIT_DEFAULT);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg);
+ msleep(PCXHR_WAIT_DEFAULT);
+ snd_printdd("no need to load eeprom boot\n");
+ return 0;
+ }
+ PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg);
+
+ err = pcxhr_download_dsp(mgr, eeprom);
+ if (err)
+ return err;
+ /* wait for chk bit */
+ return pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK,
+ PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, ®);
+}
+
+/*
+ * load the boot image
+ */
+int pcxhr_load_boot_binary(struct pcxhr_mgr *mgr, const struct firmware *boot)
+{
+ int err;
+ unsigned int physaddr = mgr->hostport.addr;
+ unsigned char dummy;
+
+ /* send the hostport address to the DSP (only the upper 24 bit !) */
+ snd_assert((physaddr & 0xff) == 0, return -EINVAL);
+ PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX1, (physaddr >> 8));
+
+ err = pcxhr_send_it_dsp(mgr, PCXHR_IT_DOWNLOAD_BOOT, 0);
+ if (err)
+ return err;
+ /* clear hf5 bit */
+ PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0,
+ PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & ~PCXHR_MBOX0_HF5);
+
+ err = pcxhr_download_dsp(mgr, boot);
+ if (err)
+ return err;
+ /* wait for hf5 bit */
+ return pcxhr_check_reg_bit(mgr, PCXHR_PLX_MBOX0, PCXHR_MBOX0_HF5,
+ PCXHR_MBOX0_HF5, PCXHR_TIMEOUT_DSP, &dummy);
+}
+
+/*
+ * load the final dsp image
+ */
+int pcxhr_load_dsp_binary(struct pcxhr_mgr *mgr, const struct firmware *dsp)
+{
+ int err;
+ unsigned char dummy;
+ err = pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_BOARD_FUNC, 0);
+ if (err)
+ return err;
+ err = pcxhr_send_it_dsp(mgr, PCXHR_IT_DOWNLOAD_DSP, 0);
+ if (err)
+ return err;
+ err = pcxhr_download_dsp(mgr, dsp);
+ if (err)
+ return err;
+ /* wait for chk bit */
+ return pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK,
+ PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, &dummy);
+}
+
+
+struct pcxhr_cmd_info {
+ u32 opcode; /* command word */
+ u16 st_length; /* status length */
+ u16 st_type; /* status type (RMH_SSIZE_XXX) */
+};
+
+/* RMH status type */
+enum {
+ RMH_SSIZE_FIXED = 0, /* status size fix (st_length = 0..x) */
+ RMH_SSIZE_ARG = 1, /* status size given in the LSB byte (used with st_length = 1) */
+ RMH_SSIZE_MASK = 2, /* status size given in bitmask (used with st_length = 1) */
+};
+
+/*
+ * Array of DSP commands
+ */
+static struct pcxhr_cmd_info pcxhr_dsp_cmds[] = {
+[CMD_VERSION] = { 0x010000, 1, RMH_SSIZE_FIXED },
+[CMD_SUPPORTED] = { 0x020000, 4, RMH_SSIZE_FIXED },
+[CMD_TEST_IT] = { 0x040000, 1, RMH_SSIZE_FIXED },
+[CMD_SEND_IRQA] = { 0x070001, 0, RMH_SSIZE_FIXED },
+[CMD_ACCESS_IO_WRITE] = { 0x090000, 1, RMH_SSIZE_ARG },
+[CMD_ACCESS_IO_READ] = { 0x094000, 1, RMH_SSIZE_ARG },
+[CMD_ASYNC] = { 0x0a0000, 1, RMH_SSIZE_ARG },
+[CMD_MODIFY_CLOCK] = { 0x0d0000, 0, RMH_SSIZE_FIXED },
+[CMD_RESYNC_AUDIO_INPUTS] = { 0x0e0000, 0, RMH_SSIZE_FIXED },
+[CMD_GET_DSP_RESOURCES] = { 0x100000, 4, RMH_SSIZE_FIXED },
+[CMD_SET_TIMER_INTERRUPT] = { 0x110000, 0, RMH_SSIZE_FIXED },
+[CMD_RES_PIPE] = { 0x400000, 0, RMH_SSIZE_FIXED },
+[CMD_FREE_PIPE] = { 0x410000, 0, RMH_SSIZE_FIXED },
+[CMD_CONF_PIPE] = { 0x422101, 0, RMH_SSIZE_FIXED },
+[CMD_STOP_PIPE] = { 0x470004, 0, RMH_SSIZE_FIXED },
+[CMD_PIPE_SAMPLE_COUNT] = { 0x49a000, 2, RMH_SSIZE_FIXED },
+[CMD_CAN_START_PIPE] = { 0x4b0000, 1, RMH_SSIZE_FIXED },
+[CMD_START_STREAM] = { 0x802000, 0, RMH_SSIZE_FIXED },
+[CMD_STREAM_OUT_LEVEL_ADJUST] = { 0x822000, 0, RMH_SSIZE_FIXED },
+[CMD_STOP_STREAM] = { 0x832000, 0, RMH_SSIZE_FIXED },
+[CMD_UPDATE_R_BUFFERS] = { 0x840000, 0, RMH_SSIZE_FIXED },
+[CMD_FORMAT_STREAM_OUT] = { 0x860000, 0, RMH_SSIZE_FIXED },
+[CMD_FORMAT_STREAM_IN] = { 0x870000, 0, RMH_SSIZE_FIXED },
+[CMD_STREAM_SAMPLE_COUNT] = { 0x902000, 2, RMH_SSIZE_FIXED }, /* stat_len = nb_streams * 2 */
+[CMD_AUDIO_LEVEL_ADJUST] = { 0xc22000, 0, RMH_SSIZE_FIXED },
+};
+
+#ifdef CONFIG_SND_DEBUG_DETECT
+static char* cmd_names[] = {
+[CMD_VERSION] = "CMD_VERSION",
+[CMD_SUPPORTED] = "CMD_SUPPORTED",
+[CMD_TEST_IT] = "CMD_TEST_IT",
+[CMD_SEND_IRQA] = "CMD_SEND_IRQA",
+[CMD_ACCESS_IO_WRITE] = "CMD_ACCESS_IO_WRITE",
+[CMD_ACCESS_IO_READ] = "CMD_ACCESS_IO_READ",
+[CMD_ASYNC] = "CMD_ASYNC",
+[CMD_MODIFY_CLOCK] = "CMD_MODIFY_CLOCK",
+[CMD_RESYNC_AUDIO_INPUTS] = "CMD_RESYNC_AUDIO_INPUTS",
+[CMD_GET_DSP_RESOURCES] = "CMD_GET_DSP_RESOURCES",
+[CMD_SET_TIMER_INTERRUPT] = "CMD_SET_TIMER_INTERRUPT",
+[CMD_RES_PIPE] = "CMD_RES_PIPE",
+[CMD_FREE_PIPE] = "CMD_FREE_PIPE",
+[CMD_CONF_PIPE] = "CMD_CONF_PIPE",
+[CMD_STOP_PIPE] = "CMD_STOP_PIPE",
+[CMD_PIPE_SAMPLE_COUNT] = "CMD_PIPE_SAMPLE_COUNT",
+[CMD_CAN_START_PIPE] = "CMD_CAN_START_PIPE",
+[CMD_START_STREAM] = "CMD_START_STREAM",
+[CMD_STREAM_OUT_LEVEL_ADJUST] = "CMD_STREAM_OUT_LEVEL_ADJUST",
+[CMD_STOP_STREAM] = "CMD_STOP_STREAM",
+[CMD_UPDATE_R_BUFFERS] = "CMD_UPDATE_R_BUFFERS",
+[CMD_FORMAT_STREAM_OUT] = "CMD_FORMAT_STREAM_OUT",
+[CMD_FORMAT_STREAM_IN] = "CMD_FORMAT_STREAM_IN",
+[CMD_STREAM_SAMPLE_COUNT] = "CMD_STREAM_SAMPLE_COUNT",
+[CMD_AUDIO_LEVEL_ADJUST] = "CMD_AUDIO_LEVEL_ADJUST",
+};
+#endif
+
+
+static int pcxhr_read_rmh_status(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh)
+{
+ int err;
+ int i;
+ u32 data;
+ u32 size_mask;
+ unsigned char reg;
+ int max_stat_len;
+
+ if (rmh->stat_len < PCXHR_SIZE_MAX_STATUS)
+ max_stat_len = PCXHR_SIZE_MAX_STATUS;
+ else max_stat_len = rmh->stat_len;
+
+ for (i = 0; i < rmh->stat_len; i++) {
+ /* wait for receiver full */
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_RXDF,
+ PCXHR_ISR_HI08_RXDF, PCXHR_TIMEOUT_DSP, ®);
+ if (err) {
+ snd_printk(KERN_ERR "ERROR RMH stat: ISR:RXDF=1 (ISR = %x; i=%d )\n",
+ reg, i);
+ return err;
+ }
+ /* read data */
+ data = PCXHR_INPB(mgr, PCXHR_DSP_TXH) << 16;
+ data |= PCXHR_INPB(mgr, PCXHR_DSP_TXM) << 8;
+ data |= PCXHR_INPB(mgr, PCXHR_DSP_TXL);
+
+ /* need to update rmh->stat_len on the fly ?? */
+ if (i==0) {
+ if (rmh->dsp_stat != RMH_SSIZE_FIXED) {
+ if (rmh->dsp_stat == RMH_SSIZE_ARG) {
+ rmh->stat_len = (u16)(data & 0x0000ff) + 1;
+ data &= 0xffff00;
+ } else {
+ /* rmh->dsp_stat == RMH_SSIZE_MASK */
+ rmh->stat_len = 1;
+ size_mask = data;
+ while (size_mask) {
+ if (size_mask & 1)
+ rmh->stat_len++;
+ size_mask >>= 1;
+ }
+ }
+ }
+ }
+#ifdef CONFIG_SND_DEBUG_DETECT
+ if (rmh->cmd_idx < CMD_LAST_INDEX)
+ snd_printdd(" stat[%d]=%x\n", i, data);
+#endif
+ if (i < max_stat_len)
+ rmh->stat[i] = data;
+ }
+ if (rmh->stat_len > max_stat_len) {
+ snd_printdd("PCXHR : rmh->stat_len=%x too big\n", rmh->stat_len);
+ rmh->stat_len = max_stat_len;
+ }
+ return 0;
+}
+
+static int pcxhr_send_msg_nolock(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh)
+{
+ int err;
+ int i;
+ u32 data;
+ unsigned char reg;
+
+ snd_assert(rmh->cmd_len<PCXHR_SIZE_MAX_CMD, return -EINVAL);
+ err = pcxhr_send_it_dsp(mgr, PCXHR_IT_MESSAGE, 1);
+ if (err) {
+ snd_printk(KERN_ERR "pcxhr_send_message : ED_DSP_CRASHED\n");
+ return err;
+ }
+ /* wait for chk bit */
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK,
+ PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, ®);
+ if (err)
+ return err;
+ /* reset irq chk */
+ err = pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_CHK, 1);
+ if (err)
+ return err;
+ /* wait for chk bit == 0*/
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK, 0,
+ PCXHR_TIMEOUT_DSP, ®);
+ if (err)
+ return err;
+
+ data = rmh->cmd[0];
+
+ if (rmh->cmd_len > 1)
+ data |= 0x008000; /* MASK_MORE_THAN_1_WORD_COMMAND */
+ else
+ data &= 0xff7fff; /* MASK_1_WORD_COMMAND */
+#ifdef CONFIG_SND_DEBUG_DETECT
+ if (rmh->cmd_idx < CMD_LAST_INDEX)
+ snd_printdd("MSG cmd[0]=%x (%s)\n", data, cmd_names[rmh->cmd_idx]);
+#endif
+
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_TRDY,
+ PCXHR_ISR_HI08_TRDY, PCXHR_TIMEOUT_DSP, ®);
+ if (err)
+ return err;
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF));
+
+ if (rmh->cmd_len > 1) {
+ /* send length */
+ data = rmh->cmd_len - 1;
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_TRDY,
+ PCXHR_ISR_HI08_TRDY, PCXHR_TIMEOUT_DSP, ®);
+ if (err)
+ return err;
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF));
+
+ for (i=1; i < rmh->cmd_len; i++) {
+ /* send other words */
+ data = rmh->cmd[i];
+#ifdef CONFIG_SND_DEBUG_DETECT
+ if (rmh->cmd_idx < CMD_LAST_INDEX)
+ snd_printdd(" cmd[%d]=%x\n", i, data);
+#endif
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR,
+ PCXHR_ISR_HI08_TRDY,
+ PCXHR_ISR_HI08_TRDY,
+ PCXHR_TIMEOUT_DSP, ®);
+ if (err)
+ return err;
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF);
+ PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF));
+ }
+ }
+ /* wait for chk bit */
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK,
+ PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, ®);
+ if (err)
+ return err;
+ /* test status ISR */
+ if (reg & PCXHR_ISR_HI08_ERR) {
+ /* ERROR, wait for receiver full */
+ err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_RXDF,
+ PCXHR_ISR_HI08_RXDF, PCXHR_TIMEOUT_DSP, ®);
+ if (err) {
+ snd_printk(KERN_ERR "ERROR RMH: ISR:RXDF=1 (ISR = %x)\n", reg);
+ return err;
+ }
+ /* read error code */
+ data = PCXHR_INPB(mgr, PCXHR_DSP_TXH) << 16;
+ data |= PCXHR_INPB(mgr, PCXHR_DSP_TXM) << 8;
+ data |= PCXHR_INPB(mgr, PCXHR_DSP_TXL);
+ snd_printk(KERN_ERR "ERROR RMH(%d): 0x%x\n", rmh->cmd_idx, data);
+ err = -EINVAL;
+ } else {
+ /* read the response data */
+ err = pcxhr_read_rmh_status(mgr, rmh);
+ }
+ /* reset semaphore */
+ if (pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_SEMAPHORE, 1) < 0)
+ return -EIO;
+ return err;
+}
+
+
+/**
+ * pcxhr_init_rmh - initialize the RMH instance
+ * @rmh: the rmh pointer to be initialized
+ * @cmd: the rmh command to be set
+ */
+void pcxhr_init_rmh(struct pcxhr_rmh *rmh, int cmd)
+{
+ snd_assert(cmd < CMD_LAST_INDEX, return);
+ rmh->cmd[0] = pcxhr_dsp_cmds[cmd].opcode;
+ rmh->cmd_len = 1;
+ rmh->stat_len = pcxhr_dsp_cmds[cmd].st_length;
+ rmh->dsp_stat = pcxhr_dsp_cmds[cmd].st_type;
+ rmh->cmd_idx = cmd;
+}
+
+
+void pcxhr_set_pipe_cmd_params(struct pcxhr_rmh *rmh, int capture,
+ unsigned int param1, unsigned int param2,
+ unsigned int param3)
+{
+ snd_assert(param1 <= MASK_FIRST_FIELD);
+ if (capture)
+ rmh->cmd[0] |= 0x800; /* COMMAND_RECORD_MASK */
+ if (param1)
+ rmh->cmd[0] |= (param1 << FIELD_SIZE);
+ if (param2) {
+ snd_assert(param2 <= MASK_FIRST_FIELD);
+ rmh->cmd[0] |= param2;
+ }
+ if(param3) {
+ snd_assert(param3 <= MASK_DSP_WORD);
+ rmh->cmd[1] = param3;
+ rmh->cmd_len = 2;
+ }
+}
+
+/*
+ * pcxhr_send_msg - send a DSP message with spinlock
+ * @rmh: the rmh record to send and receive
+ *
+ * returns 0 if successful, or a negative error code.
+ */
+int pcxhr_send_msg(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh)
+{
+ unsigned long flags;
+ int err;
+ spin_lock_irqsave(&mgr->msg_lock, flags);
+ err = pcxhr_send_msg_nolock(mgr, rmh);
+ spin_unlock_irqrestore(&mgr->msg_lock, flags);
+ return err;
+}
+
+static inline int pcxhr_pipes_running(struct pcxhr_mgr *mgr)
+{
+ int start_mask = PCXHR_INPL(mgr, PCXHR_PLX_MBOX2);
+ /* least segnificant 12 bits are the pipe states for the playback audios */
+ /* next 12 bits are the pipe states for the capture audios
+ * (PCXHR_PIPE_STATE_CAPTURE_OFFSET)
+ */
+ start_mask &= 0xffffff;
+ snd_printdd("CMD_PIPE_STATE MBOX2=0x%06x\n", start_mask);
+ return start_mask;
+}
+
+#define PCXHR_PIPE_STATE_CAPTURE_OFFSET 12
+#define MAX_WAIT_FOR_DSP 20
+
+static int pcxhr_prepair_pipe_start(struct pcxhr_mgr *mgr, int audio_mask, int *retry)
+{
+ struct pcxhr_rmh rmh;
+ int err;
+ int audio = 0;
+
+ *retry = 0;
+ while (audio_mask) {
+ if (audio_mask & 1) {
+ pcxhr_init_rmh(&rmh, CMD_CAN_START_PIPE);
+ if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET) {
+ /* can start playback pipe */
+ pcxhr_set_pipe_cmd_params(&rmh, 0, audio, 0, 0);
+ } else {
+ /* can start capture pipe */
+ pcxhr_set_pipe_cmd_params(&rmh, 1, audio -
+ PCXHR_PIPE_STATE_CAPTURE_OFFSET,
+ 0, 0);
+ }
+ err = pcxhr_send_msg(mgr, &rmh);
+ if (err) {
+ snd_printk(KERN_ERR
+ "error pipe start (CMD_CAN_START_PIPE) err=%x!\n",
+ err);
+ return err;
+ }
+ /* if the pipe couldn't be prepaired for start, retry it later */
+ if (rmh.stat[0] == 0)
+ *retry |= (1<<audio);
+ }
+ audio_mask>>=1;
+ audio++;
+ }
+ return 0;
+}
+
+static int pcxhr_stop_pipes(struct pcxhr_mgr *mgr, int audio_mask)
+{
+ struct pcxhr_rmh rmh;
+ int err;
+ int audio = 0;
+
+ while (audio_mask) {
+ if (audio_mask & 1) {
+ pcxhr_init_rmh(&rmh, CMD_STOP_PIPE);
+ if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET) {
+ /* stop playback pipe */
+ pcxhr_set_pipe_cmd_params(&rmh, 0, audio, 0, 0);
+ } else {
+ /* stop capture pipe */
+ pcxhr_set_pipe_cmd_params(&rmh, 1, audio -
+ PCXHR_PIPE_STATE_CAPTURE_OFFSET,
+ 0, 0);
+ }
+ err = pcxhr_send_msg(mgr, &rmh);
+ if (err) {
+ snd_printk(KERN_ERR
+ "error pipe stop (CMD_STOP_PIPE) err=%x!\n",
+ err);
+ return err;
+ }
+ }
+ audio_mask>>=1;
+ audio++;
+ }
+ return 0;
+}
+
+static int pcxhr_toggle_pipes(struct pcxhr_mgr *mgr, int audio_mask)
+{
+ struct pcxhr_rmh rmh;
+ int err;
+ int audio = 0;
+
+ while (audio_mask) {
+ if (audio_mask & 1) {
+ pcxhr_init_rmh(&rmh, CMD_CONF_PIPE);
+ if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET)
+ pcxhr_set_pipe_cmd_params(&rmh, 0, 0, 0, 1 << audio);
+ else
+ pcxhr_set_pipe_cmd_params(&rmh, 1, 0, 0,
+ 1 << (audio - PCXHR_PIPE_STATE_CAPTURE_OFFSET));
+ err = pcxhr_send_msg(mgr, &rmh);
+ if (err) {
+ snd_printk(KERN_ERR
+ "error pipe start (CMD_CONF_PIPE) err=%x!\n",
+ err);
+ return err;
+ }
+ }
+ audio_mask>>=1;
+ audio++;
+ }
+ /* now fire the interrupt on the card */
+ pcxhr_init_rmh(&rmh, CMD_SEND_IRQA);
+ err = pcxhr_send_msg(mgr, &rmh);
+ if (err) {
+ snd_printk(KERN_ERR "error pipe start (CMD_SEND_IRQA) err=%x!\n", err );
+ return err;
+ }
+ return 0;
+}
+
+
+
+int pcxhr_set_pipe_state(struct pcxhr_mgr *mgr, int playback_mask, int capture_mask, int start)
+{
+ int state, i, err;
+ int audio_mask;
+
+#ifdef CONFIG_SND_DEBUG_DETECT
+ struct timeval my_tv1, my_tv2;
+ do_gettimeofday(&my_tv1);
+#endif
+ audio_mask = (playback_mask | (capture_mask << PCXHR_PIPE_STATE_CAPTURE_OFFSET));
+ /* current pipe state (playback + record) */
+ state = pcxhr_pipes_running(mgr);
+ snd_printdd("pcxhr_set_pipe_state %s (mask %x current %x)\n",
+ start ? "START" : "STOP", audio_mask, state);
+ if (start) {
+ audio_mask &= ~state; /* start only pipes that are not yet started */
+ state = audio_mask;
+ for (i = 0; i < MAX_WAIT_FOR_DSP; i++) {
+ err = pcxhr_prepair_pipe_start(mgr, state, &state);
+ if (err)
+ return err;
+ if (state == 0)
+ break; /* success, all pipes prepaired for start */
+ mdelay(1); /* otherwise wait 1 millisecond and retry */
+ }
+ } else {
+ audio_mask &= state; /* stop only pipes that are started */
+ }
+ if (audio_mask == 0)
+ return 0;
+
+ err = pcxhr_toggle_pipes(mgr, audio_mask);
+ if (err)
+ return err;
+
+ i = 0;
+ while (1) {
+ state = pcxhr_pipes_running(mgr);
+ /* have all pipes the new state ? */
+ if ((state & audio_mask) == (start ? audio_mask : 0))
+ break;
+ if (++i >= MAX_WAIT_FOR_DSP * 100) {
+ snd_printk(KERN_ERR "error pipe start/stop (ED_NO_RESPONSE_AT_IRQA)\n");
+ return -EBUSY;
+ }
+ udelay(10); /* wait 10 microseconds */
+ }
+ if (!start) {
+ err = pcxhr_stop_pipes(mgr, audio_mask);
+ if (err)
+ return err;
+ }
+#ifdef CONFIG_SND_DEBUG_DETECT
+ do_gettimeofday(&my_tv2);
+ snd_printdd("***SET PIPE STATE*** TIME = %ld (err = %x)\n",
+ my_tv2.tv_usec - my_tv1.tv_usec, err);
+#endif
+ return 0;
+}
+
+int pcxhr_write_io_num_reg_cont(struct pcxhr_mgr *mgr, unsigned int mask,
+ unsigned int value, int *changed)
+{
+ struct pcxhr_rmh rmh;
+ unsigned long flags;
+ int err;
+
+ spin_lock_irqsave(&mgr->msg_lock, flags);
+ if ((mgr->io_num_reg_cont & mask) == value) {
+ snd_printdd("IO_NUM_REG_CONT mask %x already is set to %x\n", mask, value);
+ if (changed)
+ *changed = 0;
+ spin_unlock_irqrestore(&mgr->msg_lock, flags);
+ return 0; /* already programmed */
+ }
+ pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
+ rmh.cmd[0] |= IO_NUM_REG_CONT;
+ rmh.cmd[1] = mask;
+ rmh.cmd[2] = value;
+ rmh.cmd_len = 3;
+ err = pcxhr_send_msg_nolock(mgr, &rmh);
+ if (err == 0) {
+ mgr->io_num_reg_cont &= ~mask;
+ mgr->io_num_reg_cont |= value;
+ if (changed)
+ *changed = 1;
+ }
+ spin_unlock_irqrestore(&mgr->msg_lock, flags);
+ return err;
+}
+
+#define PCXHR_IRQ_TIMER 0x000300
+#define PCXHR_IRQ_FREQ_CHANGE 0x000800
+#define PCXHR_IRQ_TIME_CODE 0x001000
+#define PCXHR_IRQ_NOTIFY 0x002000
+#define PCXHR_IRQ_ASYNC 0x008000
+#define PCXHR_IRQ_MASK 0x00bb00
+#define PCXHR_FATAL_DSP_ERR 0xff0000
+
+enum pcxhr_async_err_src {
+ PCXHR_ERR_PIPE,
+ PCXHR_ERR_STREAM,
+ PCXHR_ERR_AUDIO
+};
+
+static int pcxhr_handle_async_err(struct pcxhr_mgr *mgr, u32 err,
+ enum pcxhr_async_err_src err_src, int pipe,
+ int is_capture)
+{
+#ifdef CONFIG_SND_DEBUG_DETECT
+ static char* err_src_name[] = {
+ [PCXHR_ERR_PIPE] = "Pipe",
+ [PCXHR_ERR_STREAM] = "Stream",
+ [PCXHR_ERR_AUDIO] = "Audio"
+ };
+#endif
+ if (err & 0xfff)
+ err &= 0xfff;
+ else
+ err = ((err >> 12) & 0xfff);
+ if (!err)
+ return 0;
+ snd_printdd("CMD_ASYNC : Error %s %s Pipe %d err=%x\n", err_src_name[err_src],
+ is_capture ? "Record" : "Play", pipe, err);
+ if (err == 0xe01)
+ mgr->async_err_stream_xrun++;
+ else if (err == 0xe10)
+ mgr->async_err_pipe_xrun++;
+ else
+ mgr->async_err_other_last = (int)err;
+ return 1;
+}
+
+
+void pcxhr_msg_tasklet(unsigned long arg)
+{
+ struct pcxhr_mgr *mgr = (struct pcxhr_mgr *)(arg);
+ struct pcxhr_rmh *prmh = mgr->prmh;
+ int err;
+ int i, j;
+
+ if (mgr->src_it_dsp & PCXHR_IRQ_FREQ_CHANGE)
+ snd_printdd("TASKLET : PCXHR_IRQ_FREQ_CHANGE event occured\n");
+ if (mgr->src_it_dsp & PCXHR_IRQ_TIME_CODE)
+ snd_printdd("TASKLET : PCXHR_IRQ_TIME_CODE event occured\n");
+ if (mgr->src_it_dsp & PCXHR_IRQ_NOTIFY)
+ snd_printdd("TASKLET : PCXHR_IRQ_NOTIFY event occured\n");
+ if (mgr->src_it_dsp & PCXHR_IRQ_ASYNC) {
+ snd_printdd("TASKLET : PCXHR_IRQ_ASYNC event occured\n");
+
+ pcxhr_init_rmh(prmh, CMD_ASYNC);
+ prmh->cmd[0] |= 1; /* add SEL_ASYNC_EVENTS */
+ /* this is the only one extra long response command */
+ prmh->stat_len = PCXHR_SIZE_MAX_LONG_STATUS;
+ err = pcxhr_send_msg(mgr, prmh);
+ if (err)
+ snd_printk(KERN_ERR "ERROR pcxhr_msg_tasklet=%x;\n", err);
+ i = 1;
+ while (i < prmh->stat_len) {
+ int nb_audio = (prmh->stat[i] >> FIELD_SIZE) & MASK_FIRST_FIELD;
+ int nb_stream = (prmh->stat[i] >> (2*FIELD_SIZE)) & MASK_FIRST_FIELD;
+ int pipe = prmh->stat[i] & MASK_FIRST_FIELD;
+ int is_capture = prmh->stat[i] & 0x400000;
+ u32 err;
+
+ if (prmh->stat[i] & 0x800000) { /* if BIT_END */
+ snd_printdd("TASKLET : End%sPipe %d\n",
+ is_capture ? "Record" : "Play", pipe);
+ }
+ i++;
+ err = prmh->stat[i] ? prmh->stat[i] : prmh->stat[i+1];
+ if (err)
+ pcxhr_handle_async_err(mgr, err, PCXHR_ERR_PIPE,
+ pipe, is_capture);
+ i += 2;
+ for (j = 0; j < nb_stream; j++) {
+ err = prmh->stat[i] ? prmh->stat[i] : prmh->stat[i+1];
+ if (err)
+ pcxhr_handle_async_err(mgr, err, PCXHR_ERR_STREAM,
+ pipe, is_capture);
+ i += 2;
+ }
+ for (j = 0; j < nb_audio; j++) {
+ err = prmh->stat[i] ? prmh->stat[i] : prmh->stat[i+1];
+ if (err)
+ pcxhr_handle_async_err(mgr, err, PCXHR_ERR_AUDIO,
+ pipe, is_capture);
+ i += 2;
+ }
+ }
+ }
+}
+
+static u_int64_t pcxhr_stream_read_position(struct pcxhr_mgr *mgr,
+ struct pcxhr_stream *stream)
+{
+ u_int64_t hw_sample_count;
+ struct pcxhr_rmh rmh;
+ int err, stream_mask;
+
+ stream_mask = stream->pipe->is_capture ? 1 : 1<<stream->substream->number;
+
+ /* get sample count for one stream */
+ pcxhr_init_rmh(&rmh, CMD_STREAM_SAMPLE_COUNT);
+ pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture,
+ stream->pipe->first_audio, 0, stream_mask);
+ /* rmh.stat_len = 2; */ /* 2 resp data for each stream of the pipe */
+
+ err = pcxhr_send_msg(mgr, &rmh);
+ if (err)
+ return 0;
+
+ hw_sample_count = ((u_int64_t)rmh.stat[0]) << 24;
+ hw_sample_count += (u_int64_t)rmh.stat[1];
+
+ snd_printdd("stream %c%d : abs samples real(%ld) timer(%ld)\n",
+ stream->pipe->is_capture ? 'C':'P', stream->substream->number,
+ (long unsigned int)hw_sample_count,
+ (long unsigned int)(stream->timer_abs_periods +
+ stream->timer_period_frag + PCXHR_GRANULARITY));
+
+ return hw_sample_count;
+}
+
+static void pcxhr_update_timer_pos(struct pcxhr_mgr *mgr,
+ struct pcxhr_stream *stream, int samples_to_add)
+{
+ if (stream->substream && (stream->status == PCXHR_STREAM_STATUS_RUNNING)) {
+ u_int64_t new_sample_count;
+ int elapsed = 0;
+ int hardware_read = 0;
+ struct snd_pcm_runtime *runtime = stream->substream->runtime;
+
+ if (samples_to_add < 0) {
+ stream->timer_is_synced = 0;
+ /* add default if no hardware_read possible */
+ samples_to_add = PCXHR_GRANULARITY;
+ }
+
+ if (!stream->timer_is_synced) {
+ if (stream->timer_abs_periods != 0 ||
+ stream->timer_period_frag + PCXHR_GRANULARITY >=
+ runtime->period_size) {
+ new_sample_count = pcxhr_stream_read_position(mgr, stream);
+ hardware_read = 1;
+ if (new_sample_count >= PCXHR_GRANULARITY_MIN) {
+ /* sub security offset because of jitter and
+ * finer granularity of dsp time (MBOX4)
+ */
+ new_sample_count -= PCXHR_GRANULARITY_MIN;
+ stream->timer_is_synced = 1;
+ }
+ }
+ }
+ if (!hardware_read) {
+ /* if we didn't try to sync the position, increment it
+ * by PCXHR_GRANULARITY every timer interrupt
+ */
+ new_sample_count = stream->timer_abs_periods +
+ stream->timer_period_frag + samples_to_add;
+ }
+ while (1) {
+ u_int64_t new_elapse_pos = stream->timer_abs_periods +
+ runtime->period_size;
+ if (new_elapse_pos > new_sample_count)
+ break;
+ elapsed = 1;
+ stream->timer_buf_periods++;
+ if (stream->timer_buf_periods >= runtime->periods)
+ stream->timer_buf_periods = 0;
+ stream->timer_abs_periods = new_elapse_pos;
+ }
+ if (new_sample_count >= stream->timer_abs_periods)
+ stream->timer_period_frag = (u_int32_t)(new_sample_count -
+ stream->timer_abs_periods);
+ else
+ snd_printk(KERN_ERR "ERROR new_sample_count too small ??? %lx\n",
+ (long unsigned int)new_sample_count);
+
+ if (elapsed) {
+ spin_unlock(&mgr->lock);
+ snd_pcm_period_elapsed(stream->substream);
+ spin_lock(&mgr->lock);
+ }
+ }
+}
+
+
+irqreturn_t pcxhr_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct pcxhr_mgr *mgr = dev_id;
+ unsigned int reg;
+ int i, j;
+ struct snd_pcxhr *chip;
+
+ spin_lock(&mgr->lock);
+
+ reg = PCXHR_INPL(mgr, PCXHR_PLX_IRQCS);
+ if (! (reg & PCXHR_IRQCS_ACTIVE_PCIDB)) {
+ spin_unlock(&mgr->lock);
+ return IRQ_NONE; /* this device did not cause the interrupt */
+ }
+
+ /* clear interrupt */
+ reg = PCXHR_INPL(mgr, PCXHR_PLX_L2PCIDB);
+ PCXHR_OUTPL(mgr, PCXHR_PLX_L2PCIDB, reg);
+
+ /* timer irq occured */
+ if (reg & PCXHR_IRQ_TIMER) {
+ int timer_toggle = reg & PCXHR_IRQ_TIMER;
+ /* is a 24 bit counter */
+ int dsp_time_new = PCXHR_INPL(mgr, PCXHR_PLX_MBOX4) & PCXHR_DSP_TIME_MASK;
+ int dsp_time_diff = dsp_time_new - mgr->dsp_time_last;
+
+ if (dsp_time_diff < 0 && mgr->dsp_time_last != PCXHR_DSP_TIME_INVALID) {
+ snd_printdd("ERROR DSP TIME old(%d) new(%d) -> "
+ "resynchronize all streams\n",
+ mgr->dsp_time_last, dsp_time_new);
+ mgr->dsp_time_err++;
+ }
+#ifdef CONFIG_SND_DEBUG_DETECT
+ if (dsp_time_diff == 0)
+ snd_printdd("ERROR DSP TIME NO DIFF time(%d)\n", dsp_time_new);
+ else if (dsp_time_diff >= (2*PCXHR_GRANULARITY))
+ snd_printdd("ERROR DSP TIME TOO BIG old(%d) add(%d)\n",
+ mgr->dsp_time_last, dsp_time_new - mgr->dsp_time_last);
+#endif
+ mgr->dsp_time_last = dsp_time_new;
+
+ if (timer_toggle == mgr->timer_toggle)
+ snd_printdd("ERROR TIMER TOGGLE\n");
+ mgr->timer_toggle = timer_toggle;
+
+ reg &= ~PCXHR_IRQ_TIMER;
+ for (i = 0; i < mgr->num_cards; i++) {
+ chip = mgr->chip[i];
+ for (j = 0; j < chip->nb_streams_capt; j++)
+ pcxhr_update_timer_pos(mgr, &chip->capture_stream[j],
+ dsp_time_diff);
+ }
+ for (i = 0; i < mgr->num_cards; i++) {
+ chip = mgr->chip[i];
+ for (j = 0; j < chip->nb_streams_play; j++)
+ pcxhr_update_timer_pos(mgr, &chip->playback_stream[j],
+ dsp_time_diff);
+ }
+ }
+ /* other irq's handled in the tasklet */
+ if (reg & PCXHR_IRQ_MASK) {
+
+ /* as we didn't request any notifications, some kind of xrun error
+ * will probably occured
+ */
+ /* better resynchronize all streams next interrupt : */
+ mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID;
+
+ mgr->src_it_dsp = reg;
+ tasklet_hi_schedule(&mgr->msg_taskq);
+ }
+#ifdef CONFIG_SND_DEBUG_DETECT
+ if (reg & PCXHR_FATAL_DSP_ERR)
+ snd_printdd("FATAL DSP ERROR : %x\n", reg);
+#endif
+ spin_unlock(&mgr->lock);
+ return IRQ_HANDLED; /* this device caused the interrupt */
+}
git://git.onelab.eu / linux-2.6.git / blobdiff