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path: root/drivers/media/pci/b2c2/flexcop-sram.c
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Diffstat (limited to 'drivers/media/pci/b2c2/flexcop-sram.c')
-rw-r--r--drivers/media/pci/b2c2/flexcop-sram.c363
1 files changed, 0 insertions, 363 deletions
diff --git a/drivers/media/pci/b2c2/flexcop-sram.c b/drivers/media/pci/b2c2/flexcop-sram.c
deleted file mode 100644
index f2199e43e80..00000000000
--- a/drivers/media/pci/b2c2/flexcop-sram.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/*
- * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
- * flexcop-sram.c - functions for controlling the SRAM
- * see flexcop.c for copyright information
- */
-#include "flexcop.h"
-
-static void flexcop_sram_set_chip(struct flexcop_device *fc,
- flexcop_sram_type_t type)
-{
- flexcop_set_ibi_value(wan_ctrl_reg_71c, sram_chip, type);
-}
-
-int flexcop_sram_init(struct flexcop_device *fc)
-{
- switch (fc->rev) {
- case FLEXCOP_II:
- case FLEXCOP_IIB:
- flexcop_sram_set_chip(fc, FC_SRAM_1_32KB);
- break;
- case FLEXCOP_III:
- flexcop_sram_set_chip(fc, FC_SRAM_1_48KB);
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-int flexcop_sram_set_dest(struct flexcop_device *fc, flexcop_sram_dest_t dest,
- flexcop_sram_dest_target_t target)
-{
- flexcop_ibi_value v;
- v = fc->read_ibi_reg(fc, sram_dest_reg_714);
-
- if (fc->rev != FLEXCOP_III && target == FC_SRAM_DEST_TARGET_FC3_CA) {
- err("SRAM destination target to available on FlexCopII(b)\n");
- return -EINVAL;
- }
- deb_sram("sram dest: %x target: %x\n", dest, target);
-
- if (dest & FC_SRAM_DEST_NET)
- v.sram_dest_reg_714.NET_Dest = target;
- if (dest & FC_SRAM_DEST_CAI)
- v.sram_dest_reg_714.CAI_Dest = target;
- if (dest & FC_SRAM_DEST_CAO)
- v.sram_dest_reg_714.CAO_Dest = target;
- if (dest & FC_SRAM_DEST_MEDIA)
- v.sram_dest_reg_714.MEDIA_Dest = target;
-
- fc->write_ibi_reg(fc,sram_dest_reg_714,v);
- udelay(1000); /* TODO delay really necessary */
-
- return 0;
-}
-EXPORT_SYMBOL(flexcop_sram_set_dest);
-
-void flexcop_wan_set_speed(struct flexcop_device *fc, flexcop_wan_speed_t s)
-{
- flexcop_set_ibi_value(wan_ctrl_reg_71c,wan_speed_sig,s);
-}
-EXPORT_SYMBOL(flexcop_wan_set_speed);
-
-void flexcop_sram_ctrl(struct flexcop_device *fc, int usb_wan, int sramdma, int maximumfill)
-{
- flexcop_ibi_value v = fc->read_ibi_reg(fc,sram_dest_reg_714);
- v.sram_dest_reg_714.ctrl_usb_wan = usb_wan;
- v.sram_dest_reg_714.ctrl_sramdma = sramdma;
- v.sram_dest_reg_714.ctrl_maximumfill = maximumfill;
- fc->write_ibi_reg(fc,sram_dest_reg_714,v);
-}
-EXPORT_SYMBOL(flexcop_sram_ctrl);
-
-#if 0
-static void flexcop_sram_write(struct adapter *adapter, u32 bank, u32 addr, u8 *buf, u32 len)
-{
- int i, retries;
- u32 command;
-
- for (i = 0; i < len; i++) {
- command = bank | addr | 0x04000000 | (*buf << 0x10);
-
- retries = 2;
-
- while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) {
- mdelay(1);
- retries--;
- };
-
- if (retries == 0)
- printk("%s: SRAM timeout\n", __func__);
-
- write_reg_dw(adapter, 0x700, command);
-
- buf++;
- addr++;
- }
-}
-
-static void flex_sram_read(struct adapter *adapter, u32 bank, u32 addr, u8 *buf, u32 len)
-{
- int i, retries;
- u32 command, value;
-
- for (i = 0; i < len; i++) {
- command = bank | addr | 0x04008000;
-
- retries = 10000;
-
- while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) {
- mdelay(1);
- retries--;
- };
-
- if (retries == 0)
- printk("%s: SRAM timeout\n", __func__);
-
- write_reg_dw(adapter, 0x700, command);
-
- retries = 10000;
-
- while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) {
- mdelay(1);
- retries--;
- };
-
- if (retries == 0)
- printk("%s: SRAM timeout\n", __func__);
-
- value = read_reg_dw(adapter, 0x700) >> 0x10;
-
- *buf = (value & 0xff);
-
- addr++;
- buf++;
- }
-}
-
-static void sram_write_chunk(struct adapter *adapter, u32 addr, u8 *buf, u16 len)
-{
- u32 bank;
-
- bank = 0;
-
- if (adapter->dw_sram_type == 0x20000) {
- bank = (addr & 0x18000) << 0x0d;
- }
-
- if (adapter->dw_sram_type == 0x00000) {
- if ((addr >> 0x0f) == 0)
- bank = 0x20000000;
- else
- bank = 0x10000000;
- }
- flex_sram_write(adapter, bank, addr & 0x7fff, buf, len);
-}
-
-static void sram_read_chunk(struct adapter *adapter, u32 addr, u8 *buf, u16 len)
-{
- u32 bank;
- bank = 0;
-
- if (adapter->dw_sram_type == 0x20000) {
- bank = (addr & 0x18000) << 0x0d;
- }
-
- if (adapter->dw_sram_type == 0x00000) {
- if ((addr >> 0x0f) == 0)
- bank = 0x20000000;
- else
- bank = 0x10000000;
- }
- flex_sram_read(adapter, bank, addr & 0x7fff, buf, len);
-}
-
-static void sram_read(struct adapter *adapter, u32 addr, u8 *buf, u32 len)
-{
- u32 length;
- while (len != 0) {
- length = len;
- /* check if the address range belongs to the same
- * 32K memory chip. If not, the data is read
- * from one chip at a time */
- if ((addr >> 0x0f) != ((addr + len - 1) >> 0x0f)) {
- length = (((addr >> 0x0f) + 1) << 0x0f) - addr;
- }
-
- sram_read_chunk(adapter, addr, buf, length);
- addr = addr + length;
- buf = buf + length;
- len = len - length;
- }
-}
-
-static void sram_write(struct adapter *adapter, u32 addr, u8 *buf, u32 len)
-{
- u32 length;
- while (len != 0) {
- length = len;
-
- /* check if the address range belongs to the same
- * 32K memory chip. If not, the data is
- * written to one chip at a time */
- if ((addr >> 0x0f) != ((addr + len - 1) >> 0x0f)) {
- length = (((addr >> 0x0f) + 1) << 0x0f) - addr;
- }
-
- sram_write_chunk(adapter, addr, buf, length);
- addr = addr + length;
- buf = buf + length;
- len = len - length;
- }
-}
-
-static void sram_set_size(struct adapter *adapter, u32 mask)
-{
- write_reg_dw(adapter, 0x71c,
- (mask | (~0x30000 & read_reg_dw(adapter, 0x71c))));
-}
-
-static void sram_init(struct adapter *adapter)
-{
- u32 tmp;
- tmp = read_reg_dw(adapter, 0x71c);
- write_reg_dw(adapter, 0x71c, 1);
-
- if (read_reg_dw(adapter, 0x71c) != 0) {
- write_reg_dw(adapter, 0x71c, tmp);
- adapter->dw_sram_type = tmp & 0x30000;
- ddprintk("%s: dw_sram_type = %x\n", __func__, adapter->dw_sram_type);
- } else {
- adapter->dw_sram_type = 0x10000;
- ddprintk("%s: dw_sram_type = %x\n", __func__, adapter->dw_sram_type);
- }
-}
-
-static int sram_test_location(struct adapter *adapter, u32 mask, u32 addr)
-{
- u8 tmp1, tmp2;
- dprintk("%s: mask = %x, addr = %x\n", __func__, mask, addr);
-
- sram_set_size(adapter, mask);
- sram_init(adapter);
-
- tmp2 = 0xa5;
- tmp1 = 0x4f;
-
- sram_write(adapter, addr, &tmp2, 1);
- sram_write(adapter, addr + 4, &tmp1, 1);
-
- tmp2 = 0;
- mdelay(20);
-
- sram_read(adapter, addr, &tmp2, 1);
- sram_read(adapter, addr, &tmp2, 1);
-
- dprintk("%s: wrote 0xa5, read 0x%2x\n", __func__, tmp2);
-
- if (tmp2 != 0xa5)
- return 0;
-
- tmp2 = 0x5a;
- tmp1 = 0xf4;
-
- sram_write(adapter, addr, &tmp2, 1);
- sram_write(adapter, addr + 4, &tmp1, 1);
-
- tmp2 = 0;
- mdelay(20);
-
- sram_read(adapter, addr, &tmp2, 1);
- sram_read(adapter, addr, &tmp2, 1);
-
- dprintk("%s: wrote 0x5a, read 0x%2x\n", __func__, tmp2);
-
- if (tmp2 != 0x5a)
- return 0;
- return 1;
-}
-
-static u32 sram_length(struct adapter *adapter)
-{
- if (adapter->dw_sram_type == 0x10000)
- return 32768; /* 32K */
- if (adapter->dw_sram_type == 0x00000)
- return 65536; /* 64K */
- if (adapter->dw_sram_type == 0x20000)
- return 131072; /* 128K */
- return 32768; /* 32K */
-}
-
-/* FlexcopII can work with 32K, 64K or 128K of external SRAM memory.
- - for 128K there are 4x32K chips at bank 0,1,2,3.
- - for 64K there are 2x32K chips at bank 1,2.
- - for 32K there is one 32K chip at bank 0.
-
- FlexCop works only with one bank at a time. The bank is selected
- by bits 28-29 of the 0x700 register.
-
- bank 0 covers addresses 0x00000-0x07fff
- bank 1 covers addresses 0x08000-0x0ffff
- bank 2 covers addresses 0x10000-0x17fff
- bank 3 covers addresses 0x18000-0x1ffff */
-
-static int flexcop_sram_detect(struct flexcop_device *fc)
-{
- flexcop_ibi_value r208, r71c_0, vr71c_1;
- r208 = fc->read_ibi_reg(fc, ctrl_208);
- fc->write_ibi_reg(fc, ctrl_208, ibi_zero);
-
- r71c_0 = fc->read_ibi_reg(fc, wan_ctrl_reg_71c);
- write_reg_dw(adapter, 0x71c, 1);
- tmp3 = read_reg_dw(adapter, 0x71c);
- dprintk("%s: tmp3 = %x\n", __func__, tmp3);
- write_reg_dw(adapter, 0x71c, tmp2);
-
- // check for internal SRAM ???
- tmp3--;
- if (tmp3 != 0) {
- sram_set_size(adapter, 0x10000);
- sram_init(adapter);
- write_reg_dw(adapter, 0x208, tmp);
- dprintk("%s: sram size = 32K\n", __func__);
- return 32;
- }
-
- if (sram_test_location(adapter, 0x20000, 0x18000) != 0) {
- sram_set_size(adapter, 0x20000);
- sram_init(adapter);
- write_reg_dw(adapter, 0x208, tmp);
- dprintk("%s: sram size = 128K\n", __func__);
- return 128;
- }
-
- if (sram_test_location(adapter, 0x00000, 0x10000) != 0) {
- sram_set_size(adapter, 0x00000);
- sram_init(adapter);
- write_reg_dw(adapter, 0x208, tmp);
- dprintk("%s: sram size = 64K\n", __func__);
- return 64;
- }
-
- if (sram_test_location(adapter, 0x10000, 0x00000) != 0) {
- sram_set_size(adapter, 0x10000);
- sram_init(adapter);
- write_reg_dw(adapter, 0x208, tmp);
- dprintk("%s: sram size = 32K\n", __func__);
- return 32;
- }
-
- sram_set_size(adapter, 0x10000);
- sram_init(adapter);
- write_reg_dw(adapter, 0x208, tmp);
- dprintk("%s: SRAM detection failed. Set to 32K \n", __func__);
- return 0;
-}
-
-static void sll_detect_sram_size(struct adapter *adapter)
-{
- sram_detect_for_flex2(adapter);
-}
-
-#endif
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